From 9e0a881484d07adb6d71740cb27749851b3b3cbb Mon Sep 17 00:00:00 2001
From: epoberezkin <epoberezkin@users.noreply.github.com>
Date: Mon, 9 Mar 2026 16:49:58 +0000
Subject: [PATCH] deploy: ac62ba489277e412e3fd4ce92b95066c8def3b72

---
 about/index.html                              |    2 +
 ar/contact/index.html                         |    2 +
 ar/fdroid/index.html                          |    2 +
 ar/file/index.html                            |  888 ++++++++++
 ar/index.html                                 |    2 +
 ar/invitation/index.html                      |    2 +
 ar/messaging/index.html                       |    2 +
 ar/old/index.html                             |    2 +
 ar/why/index.html                             |    2 +
 bg/contact/index.html                         |    2 +
 bg/fdroid/index.html                          |    2 +
 bg/file/index.html                            |  884 ++++++++++
 bg/index.html                                 |    2 +
 bg/invitation/index.html                      |    2 +
 bg/messaging/index.html                       |    2 +
 bg/old/index.html                             |    2 +
 bg/why/index.html                             |    2 +
 blog/20201022-simplex-chat.html               |    2 +
 blog/20210512-simplex-chat-terminal-ui.html   |    2 +
 blog/20210914-simplex-chat-v0.4-released.html |    2 +
 blog/20211208-simplex-chat-v0.5-released.html |    2 +
 blog/20220112-simplex-chat-v1-released.html   |    2 +
 ...20220214-simplex-chat-ios-public-beta.html |    2 +
 blog/20220308-simplex-chat-mobile-apps.html   |    2 +
 ...04-simplex-chat-instant-notifications.html |    2 +
 ...20220511-simplex-chat-v2-images-files.html |    2 +
 .../20220524-simplex-chat-better-privacy.html |    2 +
 ...ex-chat-new-privacy-security-settings.html |    2 +
 ...e-export-import-protocol-improvements.html |    2 +
 ...mplex-chat-v3.1-tor-groups-efficiency.html |    2 +
 ...0220808-simplex-chat-v3.1-chat-groups.html |    2 +
 ...0901-simplex-chat-v3.2-incognito-mode.html |    2 +
 ...28-simplex-chat-v4-encrypted-database.html |    2 +
 ...-chat-v4.2-security-audit-new-website.html |    2 +
 ...1206-simplex-chat-v4.3-voice-messages.html |    2 +
 ...mplex-chat-v4.4-disappearing-messages.html |    2 +
 ...-simplex-chat-v4-5-user-chat-profiles.html |    2 +
 ...230301-simplex-file-transfer-protocol.html |    2 +
 ...328-simplex-chat-v4-6-hidden-profiles.html |    2 +
 ...sion-funding-v5-videos-files-passcode.html |    2 +
 ...sage-reactions-self-destruct-passcode.html |    2 +
 ...x-chat-v5-2-message-delivery-receipts.html |    2 +
 ...cal-file-encryption-directory-service.html |    2 +
 ...sktop-quantum-resistant-better-groups.html |    2 +
 ...implex-ux-private-notes-group-history.html |    2 +
 ...tance-signal-double-ratchet-algorithm.html |    2 +
 ...stant-e2e-encryption-simple-migration.html |    2 +
 ...i-joined-simplex-chat-esraa-al-shafei.html |    2 +
 ...416-dangers-of-metadata-in-messengers.html |    2 +
 ...nsparency-v5-7-better-user-experience.html |    2 +
 ...mplex-redefining-privacy-hard-choices.html |    2 +
 ...ildren-safety-requires-e2e-encryption.html |    2 +
 ...8-private-message-routing-chat-themes.html |    2 +
 ...f-privacy-enforcing-privacy-standards.html |    2 +
 ...6-private-routing-new-user-experience.html |    2 +
 ...y-review-better-calls-user-experience.html |    2 +
 blog/20241016-wired-attack-on-privacy.html    |    2 +
 ...cy-and-decentralization-for-all-users.html |    2 +
 ...k-v6-2-servers-by-flux-business-chats.html |    2 +
 ...k-law-lead-to-mass-scale-surveillance.html |    2 +
 ...privacy-preserving-content-moderation.html |    2 +
 ...er-experience-safety-in-public-groups.html |    2 +
 ...ension-for-securely-connecting-people.html |    2 +
 ...-contacts-protect-groups-app-security.html |    2 +
 blog/index.html                               |    2 +
 contact/index.html                            |    2 +
 cs/contact/index.html                         |    2 +
 cs/fdroid/index.html                          |    2 +
 cs/file/index.html                            |  888 ++++++++++
 cs/index.html                                 |    2 +
 cs/invitation/index.html                      |    2 +
 cs/messaging/index.html                       |    2 +
 cs/old/index.html                             |    2 +
 cs/why/index.html                             |    2 +
 css/style.css                                 |    4 +-
 css/tailwind.css                              |   28 +
 de/contact/index.html                         |    2 +
 de/fdroid/index.html                          |    2 +
 de/file/index.html                            |  888 ++++++++++
 de/index.html                                 |    2 +
 de/invitation/index.html                      |    2 +
 de/messaging/index.html                       |    2 +
 de/old/index.html                             |    2 +
 de/why/index.html                             |    2 +
 directory/index.html                          |    2 +
 docs/android.html                             |    2 +
 docs/business.html                            |    2 +
 docs/cli.html                                 |    2 +
 docs/code_of_conduct.html                     |    2 +
 docs/contributing.html                        |    2 +
 docs/directory.html                           |    2 +
 docs/glossary.html                            |    2 +
 docs/guide/app-settings.html                  |    2 +
 docs/guide/audio-video-calls.html             |    2 +
 docs/guide/chat-profiles.html                 |  103 +-
 docs/guide/making-connections.html            |    2 +
 docs/guide/managing-data.html                 |    2 +
 docs/guide/privacy-security.html              |    2 +
 docs/guide/readme.html                        |    2 +
 docs/guide/secret-groups.html                 |    2 +
 docs/guide/send-messages.html                 |    2 +
 docs/lang/cs/android.html                     |    2 +
 docs/lang/cs/cli.html                         |    2 +
 docs/lang/cs/contributing.html                |    2 +
 docs/lang/cs/server.html                      |    2 +
 docs/lang/cs/simplex.html                     |    2 +
 docs/lang/cs/translations.html                |    2 +
 docs/lang/cs/webrtc.html                      |    2 +
 docs/lang/fr/android.html                     |    2 +
 docs/lang/fr/cli.html                         |    2 +
 docs/lang/fr/contributing.html                |    2 +
 docs/lang/fr/server.html                      |    2 +
 docs/lang/fr/simplex.html                     |    2 +
 docs/lang/fr/translations.html                |    2 +
 docs/lang/fr/webrtc.html                      |    2 +
 docs/lang/pl/android.html                     |    2 +
 docs/lang/pl/cli.html                         |    2 +
 docs/lang/pl/contributing.html                |    2 +
 docs/lang/pl/server.html                      |    2 +
 docs/lang/pl/simplex.html                     |    2 +
 docs/lang/pl/translations.html                |    2 +
 docs/lang/pl/webrtc.html                      |    2 +
 docs/protocol/simplex-chat.html               |    2 +
 docs/server.html                              |    2 +
 docs/simplex.html                             |    2 +
 docs/themes.html                              |    2 +
 docs/trademark.html                           |    2 +
 docs/translations.html                        |    2 +
 docs/webrtc.html                              |    2 +
 docs/why.html                                 |    2 +
 docs/xftp-server.html                         |    2 +
 donate/index.html                             |    2 +
 downloads/index.html                          |    2 +
 en/contact/index.html                         |    2 +
 en/fdroid/index.html                          |    2 +
 en/file/index.html                            |  888 ++++++++++
 en/index.html                                 |    2 +
 en/invitation/index.html                      |    2 +
 en/messaging/index.html                       |    2 +
 en/old/index.html                             |    2 +
 en/why/index.html                             |    2 +
 es/contact/index.html                         |    2 +
 es/fdroid/index.html                          |    2 +
 es/file/index.html                            |  888 ++++++++++
 es/index.html                                 |    2 +
 es/invitation/index.html                      |    2 +
 es/messaging/index.html                       |    2 +
 es/old/index.html                             |    2 +
 es/why/index.html                             |    2 +
 fa/contact/index.html                         |    2 +
 fa/fdroid/index.html                          |    2 +
 fa/file/index.html                            |  884 ++++++++++
 fa/index.html                                 |    2 +
 fa/invitation/index.html                      |    2 +
 fa/messaging/index.html                       |    2 +
 fa/old/index.html                             |    2 +
 fa/why/index.html                             |    2 +
 faq/index.html                                |    2 +
 fdroid/index.html                             |    2 +
 fi/contact/index.html                         |    2 +
 fi/fdroid/index.html                          |    2 +
 fi/file/index.html                            |  888 ++++++++++
 fi/index.html                                 |    2 +
 fi/invitation/index.html                      |    2 +
 fi/messaging/index.html                       |    2 +
 fi/old/index.html                             |    2 +
 fi/why/index.html                             |    2 +
 file-assets/crypto.worker.js                  | 1413 ++++++++++++++++
 file-assets/index.css                         |    1 +
 file-assets/index.js                          | 1468 +++++++++++++++++
 file/index.html                               |  888 ++++++++++
 fr/contact/index.html                         |    2 +
 fr/fdroid/index.html                          |    2 +
 fr/file/index.html                            |  888 ++++++++++
 fr/index.html                                 |    2 +
 fr/invitation/index.html                      |    2 +
 fr/messaging/index.html                       |    2 +
 fr/old/index.html                             |    2 +
 fr/why/index.html                             |    2 +
 he/contact/index.html                         |    2 +
 he/fdroid/index.html                          |    2 +
 he/file/index.html                            |  888 ++++++++++
 he/index.html                                 |    2 +
 he/invitation/index.html                      |    2 +
 he/messaging/index.html                       |    2 +
 he/old/index.html                             |    2 +
 he/why/index.html                             |    2 +
 hu/contact/index.html                         |    2 +
 hu/fdroid/index.html                          |    2 +
 hu/file/index.html                            |  888 ++++++++++
 hu/index.html                                 |    2 +
 hu/invitation/index.html                      |    2 +
 hu/messaging/index.html                       |    2 +
 hu/old/index.html                             |    2 +
 hu/why/index.html                             |    2 +
 id/contact/index.html                         |    2 +
 id/fdroid/index.html                          |    2 +
 id/file/index.html                            |  888 ++++++++++
 id/index.html                                 |    2 +
 id/invitation/index.html                      |    2 +
 id/messaging/index.html                       |    2 +
 id/old/index.html                             |    2 +
 id/why/index.html                             |    2 +
 img/new/xftp-protocol-dark.svg                |  115 ++
 img/new/xftp-protocol.svg                     |  130 ++
 index.html                                    |    2 +
 invitation/index.html                         |    2 +
 it/contact/index.html                         |    2 +
 it/fdroid/index.html                          |    2 +
 it/file/index.html                            |  888 ++++++++++
 it/index.html                                 |    2 +
 it/invitation/index.html                      |    2 +
 it/messaging/index.html                       |    2 +
 it/old/index.html                             |    2 +
 it/why/index.html                             |    2 +
 ja/contact/index.html                         |    2 +
 ja/fdroid/index.html                          |    2 +
 ja/file/index.html                            |  888 ++++++++++
 ja/index.html                                 |    2 +
 ja/invitation/index.html                      |    2 +
 ja/messaging/index.html                       |    2 +
 ja/old/index.html                             |    2 +
 ja/why/index.html                             |    2 +
 jobs/index.html                               |    2 +
 js/script.js                                  |    4 +-
 messaging/index.html                          |    2 +
 nl/contact/index.html                         |    2 +
 nl/fdroid/index.html                          |    2 +
 nl/file/index.html                            |  888 ++++++++++
 nl/index.html                                 |    2 +
 nl/invitation/index.html                      |    2 +
 nl/messaging/index.html                       |    2 +
 nl/old/index.html                             |    2 +
 nl/why/index.html                             |    2 +
 old/index.html                                |    2 +
 pl/contact/index.html                         |    2 +
 pl/fdroid/index.html                          |    2 +
 pl/file/index.html                            |  888 ++++++++++
 pl/index.html                                 |    2 +
 pl/invitation/index.html                      |    2 +
 pl/messaging/index.html                       |    2 +
 pl/old/index.html                             |    2 +
 pl/why/index.html                             |    2 +
 privacy/index.html                            |    2 +
 pt_BR/contact/index.html                      |    2 +
 pt_BR/fdroid/index.html                       |    2 +
 pt_BR/file/index.html                         |  888 ++++++++++
 pt_BR/index.html                              |    2 +
 pt_BR/invitation/index.html                   |    2 +
 pt_BR/messaging/index.html                    |    2 +
 pt_BR/old/index.html                          |    2 +
 pt_BR/why/index.html                          |    2 +
 reproduce/index.html                          |    2 +
 ro/contact/index.html                         |    2 +
 ro/fdroid/index.html                          |    2 +
 ro/file/index.html                            |  884 ++++++++++
 ro/index.html                                 |    2 +
 ro/invitation/index.html                      |    2 +
 ro/messaging/index.html                       |    2 +
 ro/old/index.html                             |    2 +
 ro/why/index.html                             |    2 +
 ru/contact/index.html                         |    2 +
 ru/fdroid/index.html                          |    2 +
 ru/file/index.html                            |  888 ++++++++++
 ru/index.html                                 |    2 +
 ru/invitation/index.html                      |    2 +
 ru/messaging/index.html                       |    2 +
 ru/old/index.html                             |    2 +
 ru/why/index.html                             |    2 +
 security/index.html                           |    2 +
 tr/contact/index.html                         |    2 +
 tr/fdroid/index.html                          |    2 +
 tr/file/index.html                            |  884 ++++++++++
 tr/index.html                                 |    2 +
 tr/invitation/index.html                      |    2 +
 tr/messaging/index.html                       |    2 +
 tr/old/index.html                             |    2 +
 tr/why/index.html                             |    2 +
 transparency/index.html                       |    2 +
 uk/contact/index.html                         |    2 +
 uk/fdroid/index.html                          |    2 +
 uk/file/index.html                            |  888 ++++++++++
 uk/index.html                                 |    2 +
 uk/invitation/index.html                      |    2 +
 uk/messaging/index.html                       |    2 +
 uk/old/index.html                             |    2 +
 uk/why/index.html                             |    2 +
 vouchers/index.html                           |    2 +
 why/index.html                                |    2 +
 zh_Hans/contact/index.html                    |    2 +
 zh_Hans/fdroid/index.html                     |    2 +
 zh_Hans/file/index.html                       |  888 ++++++++++
 zh_Hans/index.html                            |    2 +
 zh_Hans/invitation/index.html                 |    2 +
 zh_Hans/messaging/index.html                  |    2 +
 zh_Hans/old/index.html                        |    2 +
 zh_Hans/why/index.html                        |    2 +
 zh_Hant/contact/index.html                    |    2 +
 zh_Hant/fdroid/index.html                     |    2 +
 zh_Hant/file/index.html                       |  884 ++++++++++
 zh_Hant/index.html                            |    2 +
 zh_Hant/invitation/index.html                 |    2 +
 zh_Hant/messaging/index.html                  |    2 +
 zh_Hant/old/index.html                        |    2 +
 zh_Hant/why/index.html                        |    2 +
 305 files changed, 24997 insertions(+), 105 deletions(-)
 create mode 100644 ar/file/index.html
 create mode 100644 bg/file/index.html
 create mode 100644 cs/file/index.html
 create mode 100644 de/file/index.html
 create mode 100644 en/file/index.html
 create mode 100644 es/file/index.html
 create mode 100644 fa/file/index.html
 create mode 100644 fi/file/index.html
 create mode 100644 file-assets/crypto.worker.js
 create mode 100644 file-assets/index.css
 create mode 100644 file-assets/index.js
 create mode 100644 file/index.html
 create mode 100644 fr/file/index.html
 create mode 100644 he/file/index.html
 create mode 100644 hu/file/index.html
 create mode 100644 id/file/index.html
 create mode 100644 img/new/xftp-protocol-dark.svg
 create mode 100644 img/new/xftp-protocol.svg
 create mode 100644 it/file/index.html
 create mode 100644 ja/file/index.html
 create mode 100644 nl/file/index.html
 create mode 100644 pl/file/index.html
 create mode 100644 pt_BR/file/index.html
 create mode 100644 ro/file/index.html
 create mode 100644 ru/file/index.html
 create mode 100644 tr/file/index.html
 create mode 100644 uk/file/index.html
 create mode 100644 zh_Hans/file/index.html
 create mode 100644 zh_Hant/file/index.html

diff --git a/about/index.html b/about/index.html
index f3cedd4d76..06cc6b9896 100644
--- a/about/index.html
+++ b/about/index.html
@@ -123,6 +123,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/ar/contact/index.html b/ar/contact/index.html
index c9c25f6e6e..3c8d6c3f1e 100644
--- a/ar/contact/index.html
+++ b/ar/contact/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/ar/fdroid/index.html b/ar/fdroid/index.html
index 00d6dd44fc..136f0746d4 100644
--- a/ar/fdroid/index.html
+++ b/ar/fdroid/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/ar/file/index.html b/ar/file/index.html
new file mode 100644
index 0000000000..7945d7efd8
--- /dev/null
+++ b/ar/file/index.html
@@ -0,0 +1,888 @@
+<!DOCTYPE html>
+<html lang="ar"
+    
+        
+    
+        
+            dir="rtl"
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    >
+    <head>
+        <meta charset="UTF-8">
+        <meta http-equiv="X-UA-Compatible" content="IE=edge">
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        <title>SimpleX File Transfer</title>
+        <meta name="description" content="Send files securely with end-to-end encryption"/>
+        <meta name="Content-Type" content="text/html;charset=utf-8"/>
+        
+        <meta http-equiv="onion-location" content="http://isdb4l77sjqoy2qq7ipum6x3at6hyn3jmxfx4zdhc72ufbmuq4ilwkqd.onion/" />
+        <meta property="og:url" content="https://simplex.chat/" />
+        
+        <meta property="og:type" content="website"/>
+        <meta property="og:title" content="SimpleX File Transfer"/>
+        <meta property="og:description" content="Send files securely with end-to-end encryption"/>
+        <meta property="og:image" content="https://simplex.chat/img/share_simplex.jpg"/>
+        <meta name="twitter:card" content="summary"/>
+        <link rel="icon" type="image/png" sizes="96x96" href="/img/favicon.ico"/>
+
+        <link rel="stylesheet" href="/css/swiper-bundle.min.css">
+        <link rel="stylesheet" href="/css/blog.css">
+        <link href="/css/tailwind.css" rel="stylesheet"/>
+        <link rel="stylesheet" href="/css/style.css">
+        <link rel="stylesheet" href="/css/design3-nav.css">
+        <script async defer src="https://buttons.github.io/buttons.js"></script>
+        <script src="/js/flag-anchor.js"></script>
+        
+    </head>
+    <body class="bg-[#F3FAFF] dark:bg-[#000832]">
+        
+
+
+    
+
+    
+        
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+
+<header id="navbar">
+    <a href="/ar" class="logo logo-light ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-light.png" alt="logo"></a>
+    <a href="/ar" class="logo logo-dark ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-dark.png" alt="logo"></a>
+
+    <nav id="menu">
+        <ul>
+            <li class="nav-link ">
+                <a href="/ar">
+                    <span class="nav-link-text">الشاشة الرئيسية</span>
+                </a>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/directory/">
+                    <span class="nav-link-text">دليل</span>
+                </a>
+            </li>
+
+            
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">الدليل</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    
+                        <li><a href="/docs/guide/readme.html" class="">بداية سريعة</a></li>
+                    
+                        <li><a href="/docs/guide/send-messages.html" class="">إرسال الرسائل</a></li>
+                    
+                        <li><a href="/docs/guide/secret-groups.html" class="">مجموعات سرية</a></li>
+                    
+                        <li><a href="/docs/guide/chat-profiles.html" class="">ملفات تعريف الدردشة</a></li>
+                    
+                        <li><a href="/docs/guide/managing-data.html" class="">إدارة البيانات</a></li>
+                    
+                        <li><a href="/docs/guide/audio-video-calls.html" class="">مكالمات الصوت والفيديو</a></li>
+                    
+                        <li><a href="/docs/guide/privacy-security.html" class="">الخصوصية و الأمان</a></li>
+                    
+                        <li><a href="/docs/guide/app-settings.html" class="">إعدادات التطبيق</a></li>
+                    
+                        <li><a href="/docs/guide/making-connections.html" class="">إجراء اتصالات</a></li>
+                    
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">المرجع</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md"
+                        target="_blank">Whitepaper
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/privacy">سياسة الخصوصية</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/simplex-messaging.md"
+                        target="_blank">بروتوكول SMP
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/protocol/simplex-chat.html">بروتوكول الدردشة</a></li>
+                    <li><a href="/docs/glossary.html">المعجم</a></li>
+
+                    <hr>
+
+                    
+                        <li><a href="/docs/simplex.html" class=" lg:px-[20px] inline-block whitespace-nowrap">شبكة SimpleX</a></li>
+                    
+                        <li><a href="/docs/business.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX للأعمال التجارية</a></li>
+                    
+                        <li><a href="/docs/directory.html" class=" lg:px-[20px] inline-block whitespace-nowrap">دليل SimpleX</a></li>
+                    
+                        <li><a href="/docs/android.html" class=" lg:px-[20px] inline-block whitespace-nowrap">الوصول إلى ملفات اندرويد</a></li>
+                    
+                        <li><a href="/docs/server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">استضافة خادم SMP</a></li>
+                    
+                        <li><a href="/docs/xftp-server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">استضافة خادم XFTP</a></li>
+                    
+                        <li><a href="/docs/webrtc.html" class=" lg:px-[20px] inline-block whitespace-nowrap">خوادم WebRTC</a></li>
+                    
+                        <li><a href="/downloads/" class=" lg:px-[20px] inline-block whitespace-nowrap">التنزيلات</a></li>
+                    
+                        <li><a href="/reproduce/" class=" lg:px-[20px] inline-block whitespace-nowrap">Verify & reproduce builds</a></li>
+                    
+                        <li><a href="/transparency/" class=" lg:px-[20px] inline-block whitespace-nowrap">الشفافية</a></li>
+                    
+                        <li><a href="/security/" class=" lg:px-[20px] inline-block whitespace-nowrap">الأمان</a></li>
+                    
+                        <li><a href="/faq/" class=" lg:px-[20px] inline-block whitespace-nowrap">الأسئلة الأكثر شيوعًا</a></li>
+                    
+
+                    <hr>
+
+                    <li><a href="/docs/translations.html"
+                    >ترجمة SimpleX Chat
+                    </a></li>
+                    <li><a href="/docs/android.html"
+                    >الوصول إلى ملفات اندرويد
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/blob/stable/apps/simplex-bot-advanced/Main.hs"
+                        target="_blank">مثال بوت الدردشة
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/tree/stable/packages/simplex-chat-client/typescript"
+                        target="_blank">TypeScript SDK
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/cli.html">طرفية CLI</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq"
+                        target="_blank">SimpleXMQ
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/blog">
+                    <span class="nav-link-text">المدونة</span>
+                </a>
+            </li>
+        </ul>
+    </nav>
+
+    <div class="right-links">
+        
+            <a class="box-btn token md:hidden" href="/donate">
+                تبرّع
+            </a>
+        
+        <button href="#" class="theme-switch-btn">
+            <svg class="sun" width="469" height="469" viewBox="0 0 469 469" fill="none" xmlns="http://www.w3.org/2000/svg">
+            <path d="M225.768 1.44594C220.301 3.84594 214.701 10.6459 213.768 15.9793C213.234 18.3793 213.101 31.7126 213.368 45.7126L213.768 71.1793L217.634 76.1126C226.701 88.1126 242.968 87.5793 252.301 75.0459C254.968 71.5793 255.101 69.5793 255.101 42.2459C255.101 14.9126 254.968 12.9126 252.301 9.44594C250.834 7.44594 248.034 4.51261 246.168 3.17928C241.768 -0.154057 231.101 -1.08739 225.768 1.44594Z"/>
+            <path d="M72.9687 65.3128C63.7687 71.5794 60.1687 81.4461 63.7687 91.1794C65.502 95.4461 98.702 129.446 104.035 132.379C106.035 133.446 110.569 134.246 114.035 134.246C126.035 134.246 134.435 125.846 134.435 113.846C134.435 110.379 133.635 105.846 132.569 103.846C129.635 98.5128 95.6353 65.3128 91.3687 63.5794C85.102 61.3128 77.902 61.9794 72.9687 65.3128Z"/>
+            <path d="M377.102 63.7128C373.102 65.3128 338.969 98.7794 336.302 103.846C335.236 105.846 334.436 110.379 334.436 113.846C334.436 125.846 342.836 134.246 354.836 134.246C358.302 134.246 362.836 133.446 364.836 132.379C370.169 129.446 403.369 95.4461 405.102 91.1794C408.702 81.4461 405.102 71.5794 395.902 65.3128C391.102 61.9794 383.102 61.3128 377.102 63.7128Z"/>
+            <path d="M211.635 108.246C185.635 113.179 163.502 125.046 144.302 144.112C117.902 170.512 104.968 203.579 106.835 240.246C109.768 297.712 149.102 344.912 205.902 359.179C218.568 362.379 250.302 362.379 262.968 359.179C310.435 347.312 345.768 312.646 358.702 265.046C362.435 251.446 362.835 219.446 359.368 205.712C347.368 158.112 312.302 122.379 265.235 110.112C251.768 106.512 225.502 105.579 211.635 108.246Z"/>
+            <path d="M12.4349 214.779C-0.498477 220.379 -4.09848 237.579 5.23486 248.246C11.2349 255.046 15.6349 255.846 45.3682 255.313C74.0349 254.913 75.1015 254.646 81.6349 245.713C85.9015 239.979 85.5015 228.113 80.8349 221.979C74.4349 213.713 71.2349 212.913 42.1682 212.913C23.7682 213.046 15.2349 213.579 12.4349 214.779Z"/>
+            <path d="M396.035 215.179C393.635 216.379 390.035 219.445 388.035 221.979C383.368 228.112 382.968 239.979 387.235 245.712C394.035 254.779 394.301 254.912 426.435 254.912C458.568 254.912 458.835 254.779 465.635 245.712C469.501 240.512 469.501 227.979 465.635 222.779C458.968 213.845 458.301 213.579 428.035 213.179C404.435 212.912 399.768 213.179 396.035 215.179Z"/>
+            <path d="M103.101 336.779C96.7013 340.779 65.368 373.179 63.768 377.313C57.368 394.513 74.168 411.313 91.368 404.913C95.6347 403.179 129.635 369.979 132.568 364.646C135.368 359.446 134.968 349.046 131.768 343.846C126.168 334.646 112.035 331.179 103.101 336.779Z"/>
+            <path d="M344.035 336.912C341.635 338.379 338.569 341.445 337.102 343.845C333.902 349.045 333.502 359.445 336.302 364.645C339.235 369.979 373.235 403.179 377.502 404.912C387.235 408.512 397.102 404.912 403.369 395.712C406.702 390.779 407.369 383.579 405.102 377.312C403.369 373.045 370.169 339.045 364.835 336.112C359.635 333.312 349.235 333.712 344.035 336.912Z"/>
+            <path d="M225.368 385.712C222.968 387.046 219.368 390.112 217.368 392.646L213.768 397.312V426.379C213.768 458.246 213.901 458.779 222.968 465.446C228.168 469.312 240.701 469.312 245.901 465.446C254.834 458.779 255.101 457.979 255.501 428.246C256.034 397.579 255.234 394.379 246.834 387.979C241.101 383.579 231.634 382.512 225.368 385.712Z"/>
+            </svg>
+
+            <svg class="moon" width="469" height="469" viewBox="5 5 20 23" xmlns="http://www.w3.org/2000/svg">
+                <path d="M10.895 7.574c0 7.55 5.179 13.67 11.567 13.67 1.588 0 3.101-0.38 4.479-1.063-1.695 4.46-5.996 7.636-11.051 7.636-6.533 0-11.83-5.297-11.83-11.83 0-4.82 2.888-8.959 7.023-10.803-0.116 0.778-0.188 1.573-0.188 2.39z"></path>
+            </svg>
+        </button>
+
+        
+
+        <button id="cross-btn" class="nav-toggle-btn">
+            <svg id="cross" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+            <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z" />
+        </svg>
+        </button>
+    </div>
+</header>
+<div id="mobile-header">
+    <a href="/ar" class="logo flex dark:hidden ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-light.svg" alt="" srcset=""></a>
+    <a href="/ar" class="logo hidden dark:flex ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-dark.svg" alt="" srcset=""></a>
+
+    <button id="hamburger" class="nav-toggle-btn">
+        <svg viewBox="0 0 100 80" width="36" height="36">
+            <rect width="100" height="15"></rect>
+            <rect y="30" width="100" height="15"></rect>
+            <rect y="60" width="100" height="15"></rect>
+        </svg>
+    </button>
+</div>
+
+
+<script>
+// switch theme
+const sunIcon = document.querySelector('.sun');
+const moonIcon = document.querySelector('.moon');
+
+const userTheme = localStorage.getItem('theme');
+const systemTheme = window.matchMedia('(prefers-color-scheme: dark)').matches;
+const prismThemeLink = document.getElementById('prism-theme')
+
+function iconToggle () {
+    sunIcon.classList.toggle('hidden');
+    moonIcon.classList.toggle('hidden');
+}
+
+function themeCheck() {
+    if (userTheme === 'dark' || (!userTheme && systemTheme)) {
+        document.documentElement.classList.add('dark');
+        moonIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+    }
+    else{
+        sunIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+    }
+}
+themeCheck();
+
+function themeSwitch () {
+    if (document.documentElement.classList.contains('dark')) {
+        document.documentElement.classList.remove('dark');
+        localStorage.setItem('theme', 'light');
+        if(prismThemeLink){
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+        iconToggle();
+    } else {
+        document.documentElement.classList.add('dark');
+        localStorage.setItem('theme', 'dark');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+        iconToggle();
+    }
+}
+
+const nav = document.querySelector('header#navbar');
+
+window.addEventListener('click',(e)=>{
+    if(e.target.closest('.nav-link')){
+        if(e.target.closest('.nav-link').classList.contains('active')){
+            e.target.closest('.nav-link').classList.remove('active');
+        }
+        else{
+            document.querySelectorAll('.nav-link').forEach(el => el.classList.remove('active'))
+            e.target.closest('.nav-link').classList.add('active');
+        }
+    }
+    else if(e.target.closest('.nav-toggle-btn')){
+        if(nav.classList.contains('open')){
+            nav.classList.remove('open');
+            document.getElementById('mobile-header').classList.remove('nav-open');
+            document.documentElement.classList.remove('lock-scroll');
+        }
+        else{
+            document.documentElement.classList.add('lock-scroll');
+            document.getElementById('mobile-header').classList.add('nav-open');
+            nav.classList.add('open');
+        }
+    }
+    else if(e.target.closest('.theme-switch-btn')){
+        themeSwitch();
+    }
+});
+</script>
+
+        <html><head><link rel="stylesheet" href="/file-assets/index.css">
+<style>
+  /* Reset website .card styles that conflict with xftp bundle */
+  #app .card { cursor: default; }
+  #app .card,
+  #app .card > div { transition: unset; height: auto; }
+  #app .card > div > * { opacity: unset; max-height: unset; transform: unset; transition: unset; }
+
+  /* Align xftp bundle with website design */
+  #app { font-family: inherit; color: #3F484B; max-width: 600px; width: 100%; margin: 0 auto; padding: 0; }
+  #app .card { background: transparent; box-shadow: none; padding: 0; border-radius: 0; }
+  #app .card > h1 { display: none; }
+  .dark #app h1 { color: #fff; }
+  #app .drop-zone { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; }
+  #app .drop-zone.drag-over { border-color: #0053D0; background: #DBEEFF; }
+  #app .btn { background: #0053D0; border-radius: 34px; padding: 12px 32px; font-size: .9rem; font-weight: 600; }
+  #app .btn:hover { background: #1661D1; }
+  #app .btn-secondary { background: #6b7280; border-radius: 34px; }
+  #app .hint { color: #6b7280; }
+  #app .link-row input { border-radius: 8px; border-color: #c5d3de; }
+  #app .security-note { background: #ffffff; border-radius: 12px; color: #3F484B; }
+  #app .security-note a { color: #0197FF; }
+  #app .success { color: #0053D0; }
+
+  .dark #app { color: #e5e7eb; }
+  .dark #app .card { background: transparent; box-shadow: none; }
+  .dark #app .drop-zone { border-color: #374151; }
+  .dark #app .drop-zone.drag-over { border-color: #70F0F9; background: #1B325C; }
+  .dark #app .btn { background: #70F0F9; color: #000832; }
+  .dark #app .btn:hover { background: #66D9E2; }
+  .dark #app .link-row input { border-color: #374151; background: #071C46; color: #e5e7eb; }
+  .dark #app .security-note { background: #0B2A59; color: #d1d5db; }
+  .dark #app .security-note a { color: #70F0F9; }
+  .dark #app .success { color: #70F0F9; }
+
+  #app #upload-error { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; text-align: center; }
+  .dark #app #upload-error { border-color: #374151; }
+
+  #app .stage > .btn { margin-top: 20px; }
+  #app .security-note { margin-top: 20px; }
+  #app .drop-zone .btn { margin: 10px 0 16px; }
+
+  /* Protocol overlay: image fixed, text scrolls natively */
+  /* Push popup below navbar at all widths */
+  #xftp-protocol { padding-top: 70px; }
+  #xftp-protocol .overlay-card {
+    display: flex;
+    flex-direction: column;
+    position: relative;
+    overflow: hidden;
+  }
+  @media (min-width: 768px) {
+    #xftp-protocol .overlay-card { max-height: min(660px, 100%); }
+  }
+  #xftp-protocol .overlay-card > h1 {
+    flex-shrink: 0;
+    padding-bottom: 16px;
+    margin-bottom: 0;
+    z-index: 1;
+  }
+  @media (min-width: 1024px) and (max-height: 750px) {
+    #xftp-protocol .overlay-card > h1 {
+      font-size: 22px;
+    }
+  }
+  /* .flex is the full-width scroll container */
+  #xftp-protocol .overlay-card > .flex {
+    flex: 1;
+    min-height: 0;
+    overflow-y: auto;
+    scrollbar-width: thin;
+    scrollbar-color: #c5d3de transparent;
+  }
+  .dark #xftp-protocol .overlay-card > .flex {
+    scrollbar-color: #374151 transparent;
+  }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar { width: 6px; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-track { background: transparent; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #c5d3de; border-radius: 3px; }
+  .dark #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #374151; }
+  /* Desktop: text stays left, image fixed on right */
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card > .flex > div:first-child {
+      max-width: 50%;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child {
+      position: absolute;
+      right: 56px;
+      top: 0;
+      bottom: 0;
+      left: 55%;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      pointer-events: none;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child > div {
+      height: 100%;
+      padding: 40px 0;
+      box-sizing: border-box;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child img {
+      height: 100%;
+    }
+  }
+  #xftp-protocol .close-overlay-btn {
+    position: absolute;
+    top: 24px;
+    right: 24px;
+    cursor: pointer;
+    z-index: 3;
+    fill: #606C71;
+  }
+  .dark #xftp-protocol .close-overlay-btn { fill: #e5e7eb; }
+  /* Scroll fade: gradient over text area only, hidden at bottom */
+  #xftp-protocol .overlay-card::after {
+    content: '';
+    position: absolute;
+    bottom: 40px;
+    left: 24px;
+    right: 24px;
+    height: 48px;
+    background: linear-gradient(rgba(255,255,255,0), #fff);
+    pointer-events: none;
+    z-index: 2;
+    transition: opacity 0.2s;
+  }
+  .dark #xftp-protocol .overlay-card::after {
+    background: linear-gradient(rgba(7,28,70,0), #071C46);
+  }
+  @media (min-width: 640px) {
+    #xftp-protocol .overlay-card::after { bottom: 56px; left: 56px; right: 56px; }
+  }
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card::after { right: 55%; }
+  }
+  #xftp-protocol.scrolled-bottom .overlay-card::after { opacity: 0; }
+  #xftp-protocol .overlay-card.flex,
+  #xftp-protocol.flex .overlay-card { animation: overlaySlideIn 0.25s ease-out; }
+  @keyframes overlaySlideIn {
+    from { opacity: 0; transform: scale(0.95) translateY(10px); }
+    to { opacity: 1; transform: scale(1) translateY(0); }
+  }
+  #xftp-protocol.overlay-closing { animation: overlayFadeOut 0.2s ease-in forwards; }
+  #xftp-protocol.overlay-closing .overlay-card { animation: overlaySlideOut 0.2s ease-in forwards; }
+  @keyframes overlayFadeOut {
+    from { opacity: 1; }
+    to { opacity: 0; }
+  }
+  @keyframes overlaySlideOut {
+    from { opacity: 1; transform: scale(1) translateY(0); }
+    to { opacity: 0; transform: scale(0.95) translateY(10px); }
+  }
+
+  .file-proto-link {
+    font-size: 1.25rem;
+    font-weight: 600;
+    background: linear-gradient(90deg, #001aa7 0%, #0095e7 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+    text-decoration: none;
+  }
+  .dark .file-proto-link {
+    background: linear-gradient(90deg, #019bfe 0%, #64fdff 58%, #c8feff 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+  }
+
+</style>
+
+</head><body><section class="bg-secondary-bg-light dark:bg-primary-bg-dark py-10 mt-[66px] px-5">
+  <div class="container flex flex-col items-center mx-auto">
+    <noscript>
+      <p class="text-center text-grey-black dark:text-white py-10">
+        JavaScript is required for file transfer.
+      </p>
+    </noscript>
+    <h1 class="text-[38px] text-center font-bold text-active-blue mb-8">SimpleX File Transfer</h1>
+    <div id="app" data-xftp-app="" data-no-hashchange="" class="w-full">
+      <div class="card">
+        <div class="drop-zone">
+          <p>Drag &amp; drop a file here</p>
+          <p class="hint">or</p>
+          <span class="btn">Choose file</span>
+          <p class="hint">Max 100 MB - <a href="#join-simplex">SimpleX Chat app</a> supports files up to 1 GB</p>
+        </div>
+      </div>
+    </div>
+    <template id="dl-placeholder">
+      <div class="card">
+        <h1>SimpleX File Transfer</h1>
+        <div class="stage">
+          <p>File available</p>
+          <button class="btn">Download</button>
+          <div class="security-note">
+            <p>This file is encrypted - data routers never see file contents, name or size.</p>
+            <p>The encryption key is in the link’s hash fragment - it is never sent to any server.</p>
+            <p>For better security, use <a href="https://simplex.chat/download">SimpleX Chat</a> app.</p>
+          </div>
+        </div>
+      </div>
+    </template>
+    <script>if(location.hash.length>50){var a=document.getElementById("app"),t=document.getElementById("dl-placeholder");if(a&&t)a.replaceChildren(t.content.cloneNode(true))}</script>
+    <script type="module" src="/file-assets/index.js"></script>
+
+    <p class="text-base text-center text-grey-black dark:text-white mt-10 max-w-[600px]">Send files securely with <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span> — no accounts, no tracking.</p>
+    <a href="javascript:void(0)" data-show-overlay="xftp-protocol" class="open-overlay-btn file-proto-link mt-3 block text-center">Learn more about XFTP protocol</a>
+  </div>
+</section>
+
+<section class="bg-primary-bg-light dark:bg-secondary-bg-dark py-[90px] px-5">
+  <div class="container flex flex-col items-center mx-auto text-center">
+    <h2 class="text-[35px] leading-[45px] md:text-[45px] md:leading-[55px] text-grey-black dark:text-white font-bold mb-5">
+      Get SimpleX Chat — the most secure &amp; private messenger
+    </h2>
+    <p class="text-base text-grey-black dark:text-white mb-14 max-w-[600px]">
+      The file transfer you just used uses the same data routing protocol as SimpleX Chat. The app has end-to-end encrypted messaging, voice and video calls, groups, and sending files. No account. No phone. No email. No user profile IDs.
+    </p>
+    <div class="flex items-center justify-center gap-4 flex-wrap">
+      <a href="https://apps.apple.com/us/app/simplex-chat/id1605771084" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apple_store.svg"></a>
+      <a href="https://play.google.com/store/apps/details?id=chat.simplex.app" target="_blank"><img class="h-[40px] w-auto" src="/img/new/google_play.svg"></a>
+      <a href="/ar/fdroid"><img class="h-[40px] w-auto" src="/img/new/f_droid.svg"></a>
+      <a href="https://testflight.apple.com/join/DWuT2LQu" target="_blank"><img class="h-[40px] w-auto" src="/img/new/testflight.png"></a>
+      <a href="https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-aarch64.apk" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apk_icon.png"></a>
+    </div>
+  </div>
+</section>
+
+
+  
+    
+    <div id="xftp-protocol" data-scroll-to="" class="overlay hidden fixed top-0 left-0 bottom-0 right-0 before:absolute before:w-full before:h-full bg-transparent before:bg-secondary-bg-light dark:before:bg-primary-bg-dark before:opacity-90 items-center justify-center p-3 md:p-10 z-[10000]">
+        <div class="overlay-card w-full md:w-fit md:max-w-[1276px] bg-white dark:bg-card-bg-dark opacity-100 h-full md:h-fit md:max-h-[660px] z-[10001] rounded-md shadow-[0px_3px_12px_rgba(0,0,0,0.2)] p-6 py-10 sm:p-14 overflow-auto scale-100">
+            <h1 class="text-3xl font-bold text-active-blue mb-6 ">XFTP protocol: the most secure file transfer</h1>
+            <div class="flex flex-col-reverse lg:flex-row gap-10 justify-between">
+                
+                    <div class="lg:max-w-[448px]">
+                        <div class="text-grey-black dark:text-white flex flex-col gap-6 text-base">
+                            <div>
+  <h3 class="font-bold text-lg mb-2">No account required</h3>
+  <p>Each file fragment uses a new random key. Data routers have no "users" or "files" - they transfer encrypted file fragments of fixed sizes.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Triple-encrypted in your browser</h3>
+  <p>File encryption key is present only in the URL hash fragment - your browser never sends it to a server. There are 3 encryption layers: TLS transport, per-recipient encryption (unique ephemeral key per transfer), and file <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span>.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Independent data routers</h3>
+  <p>When file is split to fragments, it is sent via network routers operated by independent parties. No operator can see the actual file size or name. Even if a router is compromised, it can only see encrypted fragments of fixed size. File fragments are cached by network routers for approximately 48 hours.</p>
+</div>
+<p class="mt-4">
+  <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/xftp.md" target="_blank" rel="noopener" class="text-active-blue hover:underline">
+    Read the XFTP protocol specification →
+  </a>
+</p>
+
+                        </div>
+                    </div>
+                
+
+                
+                    <div class="max-w-[448px]">
+                        <div class="flex items-center justify-center">
+                            <img class="w-full max-w-[448px] min-w-[300px] dark:hidden" src="/img/new/xftp-protocol.svg" alt="">
+                            <img class="w-full max-w-[448px] min-w-[300px] hidden dark:block" src="/img/new/xftp-protocol-dark.svg" alt="">
+                        </div>
+                    </div>
+                
+            </div>
+
+            <svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+                <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z"></path>
+            </svg>
+        </div>
+    </div>
+
+
+
+<script>
+  window.__XFTP_I18N__ = {
+    "title": "SimpleX File Transfer",
+    "dropZone": "Drag & drop a file here",
+    "dropZoneHint": "or",
+    "chooseFile": "Choose file",
+    "maxSizeHint": "Max 100 MB - <a href=\"#join-simplex\">SimpleX Chat app</a> supports files up to 1 GB",
+    "encrypting": "Encrypting…",
+    "uploading": "Uploading…",
+    "cancel": "Cancel",
+    "fileUploaded": "File uploaded",
+    "copy": "Copy",
+    "copied": "Copied!",
+    "share": "Share",
+    "expiryHint": "Files are typically available for 48 hours.",
+    "securityNote1": "Your file was encrypted in the browser - data routers never see file contents, name or size.",
+    "securityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "securityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "retry": "Retry",
+    "downloading": "Downloading…",
+    "decrypting": "Decrypting…",
+    "downloadComplete": "Download complete",
+    "download": "Download",
+    "fileTooLarge": "File too large (%size%). Maximum is 100 MB. The <a href=\"#join-simplex\">SimpleX app</a> supports files up to 1 GB.",
+    "fileEmpty": "File is empty.",
+    "invalidLink": "Invalid or corrupted link.",
+    "initError": "Failed to initialize: %error%",
+    "fileAvailable": "File available (~%size%)",
+    "dlSecurityNote1": "This file is encrypted - data routers never see file contents, name or size.",
+    "dlSecurityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "dlSecurityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "workersRequired": "Web Workers required — update your browser"
+  }
+</script>
+
+<script>
+  // Intercept close for #xftp-protocol to add fade-out animation
+  document.getElementById('xftp-protocol')?.addEventListener('click', function(e) {
+    if (e.target.closest('.close-overlay-btn') || (e.target.closest('.overlay') && !e.target.closest('.overlay-card'))) {
+      e.stopPropagation();
+      var el = document.getElementById('xftp-protocol');
+      el.classList.add('overlay-closing');
+      el.addEventListener('animationend', function handler() {
+        el.removeEventListener('animationend', handler);
+        el.classList.remove('flex', 'overlay-closing');
+        el.classList.add('hidden');
+        document.body.classList.remove('lock-scroll');
+        history.replaceState(null, null, ' ');
+      });
+    }
+  }, true);
+
+  // Hide scroll fade gradient when text bottom is visible (works with column-reverse)
+  var scrollArea = document.querySelector('#xftp-protocol .overlay-card > .flex');
+  if (scrollArea) {
+    var textCol = scrollArea.querySelector(':scope > div:first-child > div');
+    function checkScrollBottom() {
+      if (!textCol) return;
+      var scrollRect = scrollArea.getBoundingClientRect();
+      if (scrollRect.height === 0) return; // not laid out yet
+      var textBottom = textCol.getBoundingClientRect().bottom;
+      document.getElementById('xftp-protocol').classList.toggle('scrolled-bottom', textBottom <= scrollRect.bottom + 10);
+    }
+    scrollArea.addEventListener('scroll', checkScrollBottom);
+    new MutationObserver(function() {
+      if (!document.getElementById('xftp-protocol').classList.contains('hidden')) {
+        requestAnimationFrame(checkScrollBottom);
+      }
+    }).observe(document.getElementById('xftp-protocol'), { attributes: true, attributeFilter: ['class'] });
+  }
+</script>
+
+<div id="address-portability" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Address portability</h1><div class="overlay-content"><p>Similarly to <a href="https://en.wikipedia.org/wiki/Local_number_portability">phone number portability</a> (the ability of the customer to transfer the service to another provider without changing the number), the address portability means the ability of a communication service customer to change the service provider without changing the service address. Many <a href="#federated-network">federated networks</a> support SRV records to provide address portability, but allowing service users to set up their own domains for the addresses is not as commonly supported by the available server and client software as for email.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="federated-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Federated network</h1><div class="overlay-content"><p>Federated network is provided by several entities that agree upon the standards and operate the network collectively. This allows the users to choose their provider, that will hold their account, their messaging history and contacts, and communicate with other providers' servers on behalf of the user. The examples are email, XMPP, Matrix and Mastodon.</p><p>The advantage of that design is that there is no single organization that all users depend on, and the standards are more difficult to change, unless it benefits all users. There are several disadvantages: 1) the innovation is slower, 2) each user account still depends on a single organization, and in most cases can't move to another provider without changing their network address – there is no <a href="#address-portability">address portability</a>, 3) the security and privacy are inevitably worse than with the centralized networks.</p><p><a href="https://en.wikipedia.org/wiki/Federation_(information_technology)">Federation on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="anonymous-credentials" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Anonymous credentials</h1><div class="overlay-content"><p>The credential that allows proving something, e.g. the right to access some resource, without identifying the user. This credential can either be generated by a trusted party or by the user themselves and provided together with the request to create the resource. The first approach creates some centralized dependency in most cases. The second approach does not require any trust - this is used in SimpleX network to authorize access to the messaging queues.</p><p><a href="https://en.wikipedia.org/wiki/Digital_credential">Digital credential on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="blockchain" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Blockchain</h1><div class="overlay-content"><p>In a wide sense, blockchain means a sequence of blocks of data, where each block contains a cryptographic hash of the previous block, thus providing integrity to the whole chain. Blockchains are used in many communication and information storage systems to provide integrity and immutability of the data. For example, BluRay disks use blockchain. SimpleX messaging queues also use blockchain - each message includes the hash of the previous message, to ensure the integrity – if any message is modified it will be detected by the recipient when the next message is received. Blockchains are a subset of <a href="#merkle-directed-acyclic-graph">Merkle directed acyclic graphs</a>.</p><p>In a more narrow sense, particularly in media, blockchain is used to refer specifically to distributed ledger, where each record also includes the hash of the previous record, but the blocks have to be agreed by the participating peers using some <a href="https://en.wikipedia.org/wiki/Consensus_(computer_science)">consensus protocol</a>.</p><p><a href="https://en.wikipedia.org/wiki/Blockchain">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="merkle-directed-acyclic-graph" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Merkle directed acyclic graph</h1><div class="overlay-content"><p>Also known as Merkle DAG, a data structure based on a general graph structure where node contains the cryptographic hashes of the previous nodes that point to it. Merkle trees are a subset of Merkle DAGs - in this case each leaf contains a cryptographic hash of the parent.</p><p>This structure by design allows to verify the integrity of the whole structure by computing its hashes and comparing with the hashes included in the nodes, in the same way as with <a href="#blockchain">blockchain</a>.</p><p>The motivation to use DAG in distributed environments instead of a simpler linear blockchain is to allow concurrent additions, when there is no requirement for a single order of added items. Merkle DAG is used, for example, in <a href="https://en.wikipedia.org/wiki/InterPlanetary_File_System">IPFS</a> and will be used in decentralized SimpleX groups.</p><p><a href="https://en.wikipedia.org/wiki/Merkle_tree">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="break-in-recovery" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Break-in recovery</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="double-ratchet-algorithm" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Double ratchet algorithm</h1><div class="overlay-content"><p>It is used by two parties to exchange <a href="#end-to-end-encryption">end-to-end encrypted</a> messages. The parties will use some <a href="#key-agreement-protocol">key agreement protocol</a> to agree on the initial shared secret key.</p><p>Double Ratchet algorithm provides <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>. It is <a href="https://signal.org/docs/specifications/doubleratchet">designed by Signal</a>, and used in SimpleX Chat and many other secure messengers. Most experts consider it the state-of-the-art encryption protocol in message encryption.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="centralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Centralized network</h1><div class="overlay-content"><p>Centralized networks are provided or controlled by a single entity. The examples are Threema, Signal, WhatsApp and Telegram. The advantage of that design is that the provider can innovate faster, and has a centralized approach to security. But the disadvantage is that the provider can change or discontinue the service, and leak, sell or disclose in some other way all users' data, including who they are connected with.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="content-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Content padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="decentralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Decentralized network</h1><div class="overlay-content"><p>Decentralized network is often used to mean "the network based on decentralized blockchain". In its original meaning, decentralized network means that there is no central authority or any other point of centralization in the network, other than network protocols specification. The advantage of decentralized networks is that they are resilient to censorship and to the provider going out of business. The disadvantage is that they are often slower to innovate, and the security may be worse than with the centralized network.</p><p>The examples of decentralized networks are email, web, DNS, XMPP, Matrix, BitTorrent, etc. All these examples have a shared global application-level address space. Cryptocurrency blockchains not only have a shared address space, but also a shared state, so they are more centralized than email. Tor network also has a shared global address space, but also a central authority. SimpleX network does not have a shared application-level address space (it relies on the shared transport-level addresses - SMP relay hostnames or IP addresses), and it does not have any central authority or any shared state.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="defense-in-depth" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Defense in depth</h1><div class="overlay-content"><p>Originally, it is a military strategy that seeks to delay rather than prevent the advance of an attacker, buying time and causing additional casualties by yielding space.</p><p>In information security, defense in depth represents the use of multiple computer security techniques to help mitigate the risk of one component of the defense being compromised or circumvented. An example could be anti-virus software installed on individual workstations when there is already virus protection on the firewalls and servers within the same environment.</p><p>SimpleX network applies defense in depth approach to security by having multiple layers for the communication security and privacy:</p><ul>
+<li>double ratchet algorithm for <a href="#end-to-end-encryption">end-to-end encryption</a> with <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>,</li>
+<li>additional layer of end-to-end encryption for each messaging queue and another encryption layer of encryption from the server to the recipient inside TLS to prevent correlation by ciphertext,</li>
+<li>TLS with only strong ciphers allowed,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-server connection via server offline certificate verification,</li>
+<li>mitigation of replay attacks via signing over transport channel binding,</li>
+<li>multiple layers of <a href="#message-padding">message padding</a> to reduce efficiency of traffic analysis,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-client out-of-band channel when sending the invitation,</li>
+<li>rotation of delivery queues to reduce efficiency of traffic analysis,</li>
+<li>etc.</li>
+</ul><p><a href="https://en.wikipedia.org/wiki/Defence_in_depth">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="end-to-end-encryption" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">End-to-end encryption</h1><div class="overlay-content"><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><p>End-to-end encryption requires agreeing cryptographic keys between the sender and the recipient in a way that no eavesdroppers can access the agreed keys. See <a href="#key-agreement-protocol">key agreement protocol</a>. This key exchange can be compromised via <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>, particularly if key exchange happens via the same communication provider and no out-of-band channel is used to verify key exchange.</p><p><a href="https://en.wikipedia.org/wiki/End-to-end_encryption">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-compromise-security" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-compromise security</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="man-in-the-middle-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Man-in-the-middle attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="message-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Message padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="key-agreement-protocol" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key agreement protocol</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="tooltip-end-to-end-encryption" class="glossary-tooltip"><div class="tooltip-content"><h4 class="tooltip-title">End-to-end encryption</h4><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><button class="read-more-btn open-overlay-btn" data-show-overlay="end-to-end-encryption">Read more</button></div></div><div id="key-exchange" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key exchange</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="mitm-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">MITM attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="non-repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Non-repudiation</h1><div class="overlay-content">Non-repudiation</div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="onion-routing" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Onion routing</h1><div class="overlay-content"><p>A technique for anonymous communication over a computer network that uses multiple layers of message encryption, analogous to the layers of an onion. The encrypted data is transmitted through a series of network nodes called "onion routers," each of which "peels" away a single layer, revealing the data's next destination. The sender remains anonymous because each intermediary knows only the location of the immediately preceding and following nodes.</p><p>The most widely used onion network is <a href="https://en.wikipedia.org/wiki/Tor_(network)">Tor</a>.</p><p>Some elements of SimpleX network use similar ideas in their design - different addresses for the same resource used by different parties, and additional encryption layers. Currently though, SimpleX messaging protocol does not protect sender network address, as the relay server is chosen by the recipient. The delivery relays chosen by sender that are planned for the future would make SimpleX design closer to onion routing.</p><p><a href="https://en.wikipedia.org/wiki/Onion_routing">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="overlay-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Overlay network</h1><div class="overlay-content"><p>Nodes in the overlay network can be thought of as being connected by virtual or logical links, each of which corresponds to a path, perhaps through many physical links, in the underlying network. Tor, for example, is an overlay network on top of IP network, which in its turn is also an overlay network over some underlying physical network.</p><p>SimpleX Clients also form a network using SMP relays and IP or some other overlay network (e.g., Tor), to communicate with each other. SMP relays, on another hand, do not form a network.</p><p><a href="https://en.wikipedia.org/wiki/Overlay_network">Wikipedia</a></p><h1>Non-repudiation</h1><p>The property of the cryptographic or communication system that allows the recipient of the message to prove to any third party that the sender identified by some cryptographic key sent the message. It is the opposite to <a href="#repudiation">repudiation</a>. While in some context non-repudiation may be desirable (e.g., for contractually binding messages), in the context of private communications it may be undesirable.</p><p><a href="https://en.wikipedia.org/wiki/Non-repudiation">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Repudiation</h1><div class="overlay-content"><p>The property of the cryptographic or communication system that allows the sender of the message to plausibly deny having sent the message, because while the recipient can verify that the message was sent by the sender, they cannot prove it to any third party - the recipient has a technical ability to forge the same encrypted message. This is an important quality of private communications, as it allows to have the conversation that can later be denied, similarly to having a private face-to-face conversation.</p><p>See also <a href="#non-repudiation">non-repudiation</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="pairwise-pseudonymous-identifier" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Pairwise pseudonymous identifier</h1><div class="overlay-content"><p>Generalizing <a href="https://csrc.nist.gov/glossary/term/pairwise_pseudonymous_identifier">the definition</a> from NIST Digital Identity Guidelines, it is an opaque unguessable identifier generated by a service used to access a resource by only one party.</p><p>In the context of SimpleX network, these are the identifiers generated by SMP relays to access anonymous messaging queues, with a separate identifier (and access credential) for each accessing party: recipient, sender and and optional notifications subscriber. The same approach is used by XFTP relays to access file chunks, with separate identifiers (and access credentials) for sender and each recipient.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Peer-to-peer</h1><div class="overlay-content"><p>Peer-to-peer (P2P) is the network architecture when participants have equal rights and communicate directly via a general purpose transport or overlay network. Unlike client-server architecture, all peers in a P2P network both provide and consume the resources. In the context of messaging, P2P architecture usually means that the messages are sent between peers, without user accounts or messages being stored on any servers. Examples are Tox, Briar, Cwtch and many others.</p><p>The advantage is that the participants do not depend on any servers. There are <a href="./SIMPLEX.md#comparison-with-p2p9-messaging-protocols">multiple downsides</a> to that architecture, such as no asynchronous message delivery, the need for network-wide peer addresses, possibility of network-wide attacks, that are usually mitigated only by using a centralized authority. These disadvantages are avoided with <a href="#proxied-peer-to-peer">proxied P2P</a> architecture.</p><p><a href="https://en.wikipedia.org/wiki/Peer-to-peer">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="proxied-peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Proxied peer-to-peer</h1><div class="overlay-content"><p>Network topology of the communication system when peers communicate via proxies that do not form the network themselves. Such design is used in Pond, that has a fixed home server for each user, and in SimpleX, that uses multiple relays providing temporary connections.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="perfect-forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Perfect forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-cryptography" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum cryptography</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-hybrid-crypto" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum hybrid crypto</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="recovery-from-compromise" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Recovery from compromise</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="user-identity" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">User identity</h1><div class="overlay-content"><p>In a communication system it refers to anything that uniquely identifies the users to the network. Depending on the communication network, it can be a phone number, email address, username, public key or a random opaque identifier. Most messaging networks rely on some form of user identity. SimpleX appears to be the only messaging network that does not rely on any kind of user identity - see <a href="https://en.wikipedia.org/wiki/Comparison_of_instant_messaging_protocols">this comparison</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div></body></html>
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+                        <a href="/ar/why"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            Why we are building it
+                        </a>
+                        <a href="/about/"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            عن واتصل بنا
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+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            سياسة الخصوصية
+                        </a>
+                        <a href="/jobs/"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            انضم للفريق
+                        </a>
+                        <a href="https://github.com/simplex-chat/simplex-chat#please-support-us-with-your-donations"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            تبرّع
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                    </div>
+                    <div class="flex flex-col items-center lg:items-start">
+                        <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            SimpleX Whitepaper
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                        <a href="https://github.com/simplex-chat/simplex-chat/blob/stable/docs/protocol/simplex-chat.md"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            بروتوكول دردشة SimpleX
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                        <a href="https://github.com/simplex-chat/simplex-chat/blob/stable/docs/CLI.md"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            طرفية CLI
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                        <a href="https://github.com/simplex-chat/simplex-chat/tree/stable/bots"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            SimpleX bots API
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                    </div>
+                </div>
+            </div>
+
+            <article class="mt-10 lg:mt-0">
+                <div class="h-[40px] flex flex-col gap-2 justify-center">
+                    <div class="flex gap-2 justify-center">
+                        <a href="https://simplex.chat/contact#/?v=1&smp=smp%3A%2F%2FPQUV2eL0t7OStZOoAsPEV2QYWt4-xilbakvGUGOItUo%3D%40smp6.simplex.im%2FK1rslx-m5bpXVIdMZg9NLUZ_8JBm8xTt%23%2F%3Fv%3D1%26dh%3DMCowBQYDK2VuAyEALDeVe-sG8mRY22LsXlPgiwTNs9dbiLrNuA7f3ZMAJ2w%253D%26srv%3Dbylepyau3ty4czmn77q4fglvperknl4bi2eb2fdy2bh4jxtf32kf73yd.onion">
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+                            </svg>
+                        </a>
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+                            </svg>
+                        </a>
+                        <a rel="me" href="https://mastodon.social/@simplex" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 512 512" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M256 512C397.385 512 512 397.385 512 256C512 114.615 397.385 0 256 0C114.615 0 0 114.615 0 256C0 397.385 114.615 512 256 512ZM339.329 99.0275C317.654 93.9388 295.564 92.2207 273.231 91.3254C272.186 91.2944 271.157 91.2596 270.14 91.2251C268.091 91.1557 266.089 91.0879 264.086 91.0567C246.35 90.7812 228.654 91.5123 210.994 93.1846C197.065 94.5035 183.244 96.4768 169.675 99.9727C162.199 101.899 154.73 103.994 147.977 107.812C134.904 115.202 125.174 125.999 117.725 138.921C108.323 155.228 103.916 173.02 103.377 191.682C102.882 208.853 102.937 226.049 103.186 243.227C103.396 257.66 104.034 272.095 104.854 286.507C105.678 300.995 107.728 315.348 110.963 329.508C114.411 344.606 119.377 359.13 127.439 372.451C138.635 390.948 154.331 403.859 174.933 410.499C187.604 414.582 200.649 417.051 213.826 418.828C237.461 422.015 261.021 421.897 284.461 417.12C294.296 415.115 303.892 412.325 313.09 408.232C314.413 407.643 314.878 406.946 314.79 405.46C314.549 401.383 314.383 397.303 314.217 393.222C314.143 391.401 314.069 389.581 313.989 387.761C313.915 386.091 313.827 384.422 313.737 382.714C313.695 381.925 313.653 381.128 313.612 380.318C313.426 380.354 313.261 380.382 313.11 380.408C312.825 380.457 312.591 380.497 312.364 380.56C294.125 385.58 275.582 388.162 256.641 387.555C245.877 387.21 235.125 386.735 224.588 384.226C217.159 382.457 210.199 379.654 204.32 374.599C197.016 368.318 193.251 360.094 191.688 350.786C191.199 347.876 190.939 344.927 190.672 341.898C190.548 340.499 190.423 339.084 190.274 337.647C190.638 337.712 190.939 337.764 191.198 337.808C191.658 337.888 191.989 337.945 192.317 338.012C193.433 338.242 194.548 338.478 195.663 338.714C197.9 339.188 200.137 339.662 202.384 340.08C217.874 342.967 233.476 344.947 249.2 346.01C261.24 346.825 273.283 346.962 285.306 346.061C292.653 345.511 299.987 344.776 307.32 344.042C310.694 343.704 314.068 343.366 317.444 343.046C329.993 341.856 342.163 339.055 353.868 334.339C368.08 328.613 381.069 320.958 391.661 309.671C397.704 303.232 402.22 295.971 403.793 287.033C406.787 270.025 408.278 252.868 409.117 235.648C409.506 227.659 409.68 219.659 409.854 211.661C409.877 210.641 409.899 209.622 409.922 208.602C410.225 194.937 409.755 181.331 406.589 167.943C402.18 149.303 393.93 132.763 380.157 119.248C373.506 112.723 366.119 107.246 357.182 104.291C351.293 102.344 345.36 100.443 339.329 99.0275ZM206.301 147.05C215.154 146.705 223.699 148.074 231.686 152.148C239.099 156.066 244.656 161.596 248.834 168.559C250.24 170.904 251.634 173.256 253.028 175.609C253.877 177.042 254.725 178.475 255.577 179.906C255.751 180.198 255.939 180.481 256.169 180.825C256.289 181.005 256.42 181.202 256.567 181.426C256.835 180.985 257.092 180.564 257.34 180.156C257.857 179.31 258.338 178.52 258.815 177.728C259.514 176.567 260.2 175.397 260.885 174.228C262.344 171.739 263.803 169.25 265.39 166.845C274.175 153.529 286.908 147.555 302.51 147.037C311.492 146.739 320.132 148.161 328.153 152.407C340.022 158.69 347.454 168.621 351.49 181.281C353.776 188.451 354.772 195.835 354.782 203.337C354.809 224.399 354.804 245.462 354.8 266.525C354.798 274.145 354.797 281.765 354.796 289.385C354.796 291.539 354.794 291.541 352.618 291.541C345.311 291.541 338.005 291.541 330.699 291.541L322.729 291.541L320.556 291.541V289.22C320.556 282.775 320.555 276.331 320.555 269.886C320.555 249.152 320.555 228.417 320.557 207.683C320.557 203.313 320.182 198.991 318.855 194.802C316.363 186.935 311.094 182.212 302.904 181.058C297.135 180.245 291.436 180.588 286.145 183.355C279.524 186.817 276.269 192.781 274.923 199.777C274.066 204.228 273.672 208.827 273.621 213.366C273.507 223.706 273.527 234.048 273.547 244.39C273.555 248.39 273.563 252.389 273.563 256.389V258.442H239.519C239.519 257.757 239.52 257.127 239.519 256.498C239.515 252.169 239.515 247.841 239.515 243.512C239.515 232.533 239.514 221.553 239.453 210.574C239.422 205.073 238.685 199.648 236.607 194.488C233.57 186.946 228.11 182.277 220.046 181.187C216.643 180.726 213.072 180.737 209.67 181.204C202.089 182.246 197.072 186.701 194.521 193.923C193.001 198.228 192.528 202.699 192.528 207.236C192.526 227.665 192.526 248.094 192.526 268.522C192.526 275.434 192.527 282.345 192.527 289.256V291.425H158.285V289.671C158.285 281.418 158.28 273.166 158.274 264.914C158.259 244.215 158.245 223.516 158.321 202.817C158.362 191.725 160.39 180.983 165.938 171.217C174.826 155.574 188.484 147.745 206.301 147.05Z" />
+                            </svg>
+                        </a>
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+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 512 512" fill="none" xmlns="http://www.w3.org/2000/svg">
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+        <a href="#" class="text-grey-black dark:text-white text-[16px] text-center lg:ltr:text-left lg:rtl:text-right font-medium leading-[28px] tracking-[0.01em] block mt-[60px]">مشروع مفتوح المصدر © © 2020-2025 SimpleX Chat | مشروع مفتوح المصدرSimpleX 2020-2025</a>
+    </div>
+</section>
+
+
+        <script src="/js/swiper-bundle.min.js"></script>
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index 95a46865e7..6b6aa1ccd7 100644
--- a/ar/index.html
+++ b/ar/index.html
@@ -153,6 +153,8 @@
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index 35f12187f2..6f614ed7d0 100644
--- a/ar/invitation/index.html
+++ b/ar/invitation/index.html
@@ -133,6 +133,8 @@
                 </a>
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+            
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diff --git a/ar/messaging/index.html b/ar/messaging/index.html
index f8e881ae93..14fe1534e6 100644
--- a/ar/messaging/index.html
+++ b/ar/messaging/index.html
@@ -133,6 +133,8 @@
                 </a>
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+            
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index 5062ff290b..48ba1ff7f4 100644
--- a/ar/old/index.html
+++ b/ar/old/index.html
@@ -133,6 +133,8 @@
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index 62cab11bfc..f7dbaaa409 100644
--- a/ar/why/index.html
+++ b/ar/why/index.html
@@ -133,6 +133,8 @@
                 </a>
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diff --git a/bg/contact/index.html b/bg/contact/index.html
index 92f38b3995..8b22ee957c 100644
--- a/bg/contact/index.html
+++ b/bg/contact/index.html
@@ -129,6 +129,8 @@
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index d1b899729d..5d4a4994f2 100644
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+    >
+    <head>
+        <meta charset="UTF-8">
+        <meta http-equiv="X-UA-Compatible" content="IE=edge">
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        <title>SimpleX File Transfer</title>
+        <meta name="description" content="Send files securely with end-to-end encryption"/>
+        <meta name="Content-Type" content="text/html;charset=utf-8"/>
+        
+        <meta http-equiv="onion-location" content="http://isdb4l77sjqoy2qq7ipum6x3at6hyn3jmxfx4zdhc72ufbmuq4ilwkqd.onion/" />
+        <meta property="og:url" content="https://simplex.chat/" />
+        
+        <meta property="og:type" content="website"/>
+        <meta property="og:title" content="SimpleX File Transfer"/>
+        <meta property="og:description" content="Send files securely with end-to-end encryption"/>
+        <meta property="og:image" content="https://simplex.chat/img/share_simplex.jpg"/>
+        <meta name="twitter:card" content="summary"/>
+        <link rel="icon" type="image/png" sizes="96x96" href="/img/favicon.ico"/>
+
+        <link rel="stylesheet" href="/css/swiper-bundle.min.css">
+        <link rel="stylesheet" href="/css/blog.css">
+        <link href="/css/tailwind.css" rel="stylesheet"/>
+        <link rel="stylesheet" href="/css/style.css">
+        <link rel="stylesheet" href="/css/design3-nav.css">
+        <script async defer src="https://buttons.github.io/buttons.js"></script>
+        <script src="/js/flag-anchor.js"></script>
+        
+    </head>
+    <body class="bg-[#F3FAFF] dark:bg-[#000832]">
+        
+
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+
+<header id="navbar">
+    <a href="/bg" class="logo logo-light ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-light.png" alt="logo"></a>
+    <a href="/bg" class="logo logo-dark ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-dark.png" alt="logo"></a>
+
+    <nav id="menu">
+        <ul>
+            <li class="nav-link ">
+                <a href="/bg">
+                    <span class="nav-link-text">Дом</span>
+                </a>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/directory/">
+                    <span class="nav-link-text">Directory</span>
+                </a>
+            </li>
+
+            
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">Guide</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    
+                        <li><a href="/docs/guide/readme.html" class="">Quick start</a></li>
+                    
+                        <li><a href="/docs/guide/send-messages.html" class="">Sending messages</a></li>
+                    
+                        <li><a href="/docs/guide/secret-groups.html" class="">Secret groups</a></li>
+                    
+                        <li><a href="/docs/guide/chat-profiles.html" class="">Chat profiles</a></li>
+                    
+                        <li><a href="/docs/guide/managing-data.html" class="">Managing data</a></li>
+                    
+                        <li><a href="/docs/guide/audio-video-calls.html" class="">Audio & video Calls</a></li>
+                    
+                        <li><a href="/docs/guide/privacy-security.html" class="">Privacy & security</a></li>
+                    
+                        <li><a href="/docs/guide/app-settings.html" class="">App settings</a></li>
+                    
+                        <li><a href="/docs/guide/making-connections.html" class="">Making connections</a></li>
+                    
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">Справка</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md"
+                        target="_blank">Whitepaper
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/privacy">Политика за поверителност</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/simplex-messaging.md"
+                        target="_blank">СМП Протокол
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/protocol/simplex-chat.html">Чат протокол</a></li>
+                    <li><a href="/docs/glossary.html">Речник</a></li>
+
+                    <hr>
+
+                    
+                        <li><a href="/docs/simplex.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX network</a></li>
+                    
+                        <li><a href="/docs/business.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX for business</a></li>
+                    
+                        <li><a href="/docs/directory.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX Directory</a></li>
+                    
+                        <li><a href="/docs/android.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Accessing Android files</a></li>
+                    
+                        <li><a href="/docs/server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Host SMP Server</a></li>
+                    
+                        <li><a href="/docs/xftp-server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Host XFTP Server</a></li>
+                    
+                        <li><a href="/docs/webrtc.html" class=" lg:px-[20px] inline-block whitespace-nowrap">WebRTC servers</a></li>
+                    
+                        <li><a href="/downloads/" class=" lg:px-[20px] inline-block whitespace-nowrap">Downloads</a></li>
+                    
+                        <li><a href="/reproduce/" class=" lg:px-[20px] inline-block whitespace-nowrap">Verify & reproduce builds</a></li>
+                    
+                        <li><a href="/transparency/" class=" lg:px-[20px] inline-block whitespace-nowrap">Transparency</a></li>
+                    
+                        <li><a href="/security/" class=" lg:px-[20px] inline-block whitespace-nowrap">Security</a></li>
+                    
+                        <li><a href="/faq/" class=" lg:px-[20px] inline-block whitespace-nowrap">FAQ</a></li>
+                    
+
+                    <hr>
+
+                    <li><a href="/docs/translations.html"
+                    >Translate SimpleX Chat
+                    </a></li>
+                    <li><a href="/docs/android.html"
+                    >Accessing Android files
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/blob/stable/apps/simplex-bot-advanced/Main.hs"
+                        target="_blank">Пример за чат бот
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/tree/stable/packages/simplex-chat-client/typescript"
+                        target="_blank">TypeScript SDK
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/cli.html">Системна конзола</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq"
+                        target="_blank">SimpleXMQ
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/blog">
+                    <span class="nav-link-text">Блог</span>
+                </a>
+            </li>
+        </ul>
+    </nav>
+
+    <div class="right-links">
+        
+            <a class="box-btn token md:hidden" href="/donate">
+                Дарете
+            </a>
+        
+        <button href="#" class="theme-switch-btn">
+            <svg class="sun" width="469" height="469" viewBox="0 0 469 469" fill="none" xmlns="http://www.w3.org/2000/svg">
+            <path d="M225.768 1.44594C220.301 3.84594 214.701 10.6459 213.768 15.9793C213.234 18.3793 213.101 31.7126 213.368 45.7126L213.768 71.1793L217.634 76.1126C226.701 88.1126 242.968 87.5793 252.301 75.0459C254.968 71.5793 255.101 69.5793 255.101 42.2459C255.101 14.9126 254.968 12.9126 252.301 9.44594C250.834 7.44594 248.034 4.51261 246.168 3.17928C241.768 -0.154057 231.101 -1.08739 225.768 1.44594Z"/>
+            <path d="M72.9687 65.3128C63.7687 71.5794 60.1687 81.4461 63.7687 91.1794C65.502 95.4461 98.702 129.446 104.035 132.379C106.035 133.446 110.569 134.246 114.035 134.246C126.035 134.246 134.435 125.846 134.435 113.846C134.435 110.379 133.635 105.846 132.569 103.846C129.635 98.5128 95.6353 65.3128 91.3687 63.5794C85.102 61.3128 77.902 61.9794 72.9687 65.3128Z"/>
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+            </svg>
+
+            <svg class="moon" width="469" height="469" viewBox="5 5 20 23" xmlns="http://www.w3.org/2000/svg">
+                <path d="M10.895 7.574c0 7.55 5.179 13.67 11.567 13.67 1.588 0 3.101-0.38 4.479-1.063-1.695 4.46-5.996 7.636-11.051 7.636-6.533 0-11.83-5.297-11.83-11.83 0-4.82 2.888-8.959 7.023-10.803-0.116 0.778-0.188 1.573-0.188 2.39z"></path>
+            </svg>
+        </button>
+
+        
+
+        <button id="cross-btn" class="nav-toggle-btn">
+            <svg id="cross" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+            <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z" />
+        </svg>
+        </button>
+    </div>
+</header>
+<div id="mobile-header">
+    <a href="/bg" class="logo flex dark:hidden ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-light.svg" alt="" srcset=""></a>
+    <a href="/bg" class="logo hidden dark:flex ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-dark.svg" alt="" srcset=""></a>
+
+    <button id="hamburger" class="nav-toggle-btn">
+        <svg viewBox="0 0 100 80" width="36" height="36">
+            <rect width="100" height="15"></rect>
+            <rect y="30" width="100" height="15"></rect>
+            <rect y="60" width="100" height="15"></rect>
+        </svg>
+    </button>
+</div>
+
+
+<script>
+// switch theme
+const sunIcon = document.querySelector('.sun');
+const moonIcon = document.querySelector('.moon');
+
+const userTheme = localStorage.getItem('theme');
+const systemTheme = window.matchMedia('(prefers-color-scheme: dark)').matches;
+const prismThemeLink = document.getElementById('prism-theme')
+
+function iconToggle () {
+    sunIcon.classList.toggle('hidden');
+    moonIcon.classList.toggle('hidden');
+}
+
+function themeCheck() {
+    if (userTheme === 'dark' || (!userTheme && systemTheme)) {
+        document.documentElement.classList.add('dark');
+        moonIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+    }
+    else{
+        sunIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+    }
+}
+themeCheck();
+
+function themeSwitch () {
+    if (document.documentElement.classList.contains('dark')) {
+        document.documentElement.classList.remove('dark');
+        localStorage.setItem('theme', 'light');
+        if(prismThemeLink){
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+        iconToggle();
+    } else {
+        document.documentElement.classList.add('dark');
+        localStorage.setItem('theme', 'dark');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+        iconToggle();
+    }
+}
+
+const nav = document.querySelector('header#navbar');
+
+window.addEventListener('click',(e)=>{
+    if(e.target.closest('.nav-link')){
+        if(e.target.closest('.nav-link').classList.contains('active')){
+            e.target.closest('.nav-link').classList.remove('active');
+        }
+        else{
+            document.querySelectorAll('.nav-link').forEach(el => el.classList.remove('active'))
+            e.target.closest('.nav-link').classList.add('active');
+        }
+    }
+    else if(e.target.closest('.nav-toggle-btn')){
+        if(nav.classList.contains('open')){
+            nav.classList.remove('open');
+            document.getElementById('mobile-header').classList.remove('nav-open');
+            document.documentElement.classList.remove('lock-scroll');
+        }
+        else{
+            document.documentElement.classList.add('lock-scroll');
+            document.getElementById('mobile-header').classList.add('nav-open');
+            nav.classList.add('open');
+        }
+    }
+    else if(e.target.closest('.theme-switch-btn')){
+        themeSwitch();
+    }
+});
+</script>
+
+        <html><head><link rel="stylesheet" href="/file-assets/index.css">
+<style>
+  /* Reset website .card styles that conflict with xftp bundle */
+  #app .card { cursor: default; }
+  #app .card,
+  #app .card > div { transition: unset; height: auto; }
+  #app .card > div > * { opacity: unset; max-height: unset; transform: unset; transition: unset; }
+
+  /* Align xftp bundle with website design */
+  #app { font-family: inherit; color: #3F484B; max-width: 600px; width: 100%; margin: 0 auto; padding: 0; }
+  #app .card { background: transparent; box-shadow: none; padding: 0; border-radius: 0; }
+  #app .card > h1 { display: none; }
+  .dark #app h1 { color: #fff; }
+  #app .drop-zone { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; }
+  #app .drop-zone.drag-over { border-color: #0053D0; background: #DBEEFF; }
+  #app .btn { background: #0053D0; border-radius: 34px; padding: 12px 32px; font-size: .9rem; font-weight: 600; }
+  #app .btn:hover { background: #1661D1; }
+  #app .btn-secondary { background: #6b7280; border-radius: 34px; }
+  #app .hint { color: #6b7280; }
+  #app .link-row input { border-radius: 8px; border-color: #c5d3de; }
+  #app .security-note { background: #ffffff; border-radius: 12px; color: #3F484B; }
+  #app .security-note a { color: #0197FF; }
+  #app .success { color: #0053D0; }
+
+  .dark #app { color: #e5e7eb; }
+  .dark #app .card { background: transparent; box-shadow: none; }
+  .dark #app .drop-zone { border-color: #374151; }
+  .dark #app .drop-zone.drag-over { border-color: #70F0F9; background: #1B325C; }
+  .dark #app .btn { background: #70F0F9; color: #000832; }
+  .dark #app .btn:hover { background: #66D9E2; }
+  .dark #app .link-row input { border-color: #374151; background: #071C46; color: #e5e7eb; }
+  .dark #app .security-note { background: #0B2A59; color: #d1d5db; }
+  .dark #app .security-note a { color: #70F0F9; }
+  .dark #app .success { color: #70F0F9; }
+
+  #app #upload-error { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; text-align: center; }
+  .dark #app #upload-error { border-color: #374151; }
+
+  #app .stage > .btn { margin-top: 20px; }
+  #app .security-note { margin-top: 20px; }
+  #app .drop-zone .btn { margin: 10px 0 16px; }
+
+  /* Protocol overlay: image fixed, text scrolls natively */
+  /* Push popup below navbar at all widths */
+  #xftp-protocol { padding-top: 70px; }
+  #xftp-protocol .overlay-card {
+    display: flex;
+    flex-direction: column;
+    position: relative;
+    overflow: hidden;
+  }
+  @media (min-width: 768px) {
+    #xftp-protocol .overlay-card { max-height: min(660px, 100%); }
+  }
+  #xftp-protocol .overlay-card > h1 {
+    flex-shrink: 0;
+    padding-bottom: 16px;
+    margin-bottom: 0;
+    z-index: 1;
+  }
+  @media (min-width: 1024px) and (max-height: 750px) {
+    #xftp-protocol .overlay-card > h1 {
+      font-size: 22px;
+    }
+  }
+  /* .flex is the full-width scroll container */
+  #xftp-protocol .overlay-card > .flex {
+    flex: 1;
+    min-height: 0;
+    overflow-y: auto;
+    scrollbar-width: thin;
+    scrollbar-color: #c5d3de transparent;
+  }
+  .dark #xftp-protocol .overlay-card > .flex {
+    scrollbar-color: #374151 transparent;
+  }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar { width: 6px; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-track { background: transparent; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #c5d3de; border-radius: 3px; }
+  .dark #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #374151; }
+  /* Desktop: text stays left, image fixed on right */
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card > .flex > div:first-child {
+      max-width: 50%;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child {
+      position: absolute;
+      right: 56px;
+      top: 0;
+      bottom: 0;
+      left: 55%;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      pointer-events: none;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child > div {
+      height: 100%;
+      padding: 40px 0;
+      box-sizing: border-box;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child img {
+      height: 100%;
+    }
+  }
+  #xftp-protocol .close-overlay-btn {
+    position: absolute;
+    top: 24px;
+    right: 24px;
+    cursor: pointer;
+    z-index: 3;
+    fill: #606C71;
+  }
+  .dark #xftp-protocol .close-overlay-btn { fill: #e5e7eb; }
+  /* Scroll fade: gradient over text area only, hidden at bottom */
+  #xftp-protocol .overlay-card::after {
+    content: '';
+    position: absolute;
+    bottom: 40px;
+    left: 24px;
+    right: 24px;
+    height: 48px;
+    background: linear-gradient(rgba(255,255,255,0), #fff);
+    pointer-events: none;
+    z-index: 2;
+    transition: opacity 0.2s;
+  }
+  .dark #xftp-protocol .overlay-card::after {
+    background: linear-gradient(rgba(7,28,70,0), #071C46);
+  }
+  @media (min-width: 640px) {
+    #xftp-protocol .overlay-card::after { bottom: 56px; left: 56px; right: 56px; }
+  }
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card::after { right: 55%; }
+  }
+  #xftp-protocol.scrolled-bottom .overlay-card::after { opacity: 0; }
+  #xftp-protocol .overlay-card.flex,
+  #xftp-protocol.flex .overlay-card { animation: overlaySlideIn 0.25s ease-out; }
+  @keyframes overlaySlideIn {
+    from { opacity: 0; transform: scale(0.95) translateY(10px); }
+    to { opacity: 1; transform: scale(1) translateY(0); }
+  }
+  #xftp-protocol.overlay-closing { animation: overlayFadeOut 0.2s ease-in forwards; }
+  #xftp-protocol.overlay-closing .overlay-card { animation: overlaySlideOut 0.2s ease-in forwards; }
+  @keyframes overlayFadeOut {
+    from { opacity: 1; }
+    to { opacity: 0; }
+  }
+  @keyframes overlaySlideOut {
+    from { opacity: 1; transform: scale(1) translateY(0); }
+    to { opacity: 0; transform: scale(0.95) translateY(10px); }
+  }
+
+  .file-proto-link {
+    font-size: 1.25rem;
+    font-weight: 600;
+    background: linear-gradient(90deg, #001aa7 0%, #0095e7 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+    text-decoration: none;
+  }
+  .dark .file-proto-link {
+    background: linear-gradient(90deg, #019bfe 0%, #64fdff 58%, #c8feff 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+  }
+
+</style>
+
+</head><body><section class="bg-secondary-bg-light dark:bg-primary-bg-dark py-10 mt-[66px] px-5">
+  <div class="container flex flex-col items-center mx-auto">
+    <noscript>
+      <p class="text-center text-grey-black dark:text-white py-10">
+        JavaScript is required for file transfer.
+      </p>
+    </noscript>
+    <h1 class="text-[38px] text-center font-bold text-active-blue mb-8">SimpleX File Transfer</h1>
+    <div id="app" data-xftp-app="" data-no-hashchange="" class="w-full">
+      <div class="card">
+        <div class="drop-zone">
+          <p>Drag &amp; drop a file here</p>
+          <p class="hint">or</p>
+          <span class="btn">Choose file</span>
+          <p class="hint">Max 100 MB - <a href="#join-simplex">SimpleX Chat app</a> supports files up to 1 GB</p>
+        </div>
+      </div>
+    </div>
+    <template id="dl-placeholder">
+      <div class="card">
+        <h1>SimpleX File Transfer</h1>
+        <div class="stage">
+          <p>File available</p>
+          <button class="btn">Download</button>
+          <div class="security-note">
+            <p>This file is encrypted - data routers never see file contents, name or size.</p>
+            <p>The encryption key is in the link’s hash fragment - it is never sent to any server.</p>
+            <p>For better security, use <a href="https://simplex.chat/download">SimpleX Chat</a> app.</p>
+          </div>
+        </div>
+      </div>
+    </template>
+    <script>if(location.hash.length>50){var a=document.getElementById("app"),t=document.getElementById("dl-placeholder");if(a&&t)a.replaceChildren(t.content.cloneNode(true))}</script>
+    <script type="module" src="/file-assets/index.js"></script>
+
+    <p class="text-base text-center text-grey-black dark:text-white mt-10 max-w-[600px]">Send files securely with <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span> — no accounts, no tracking.</p>
+    <a href="javascript:void(0)" data-show-overlay="xftp-protocol" class="open-overlay-btn file-proto-link mt-3 block text-center">Learn more about XFTP protocol</a>
+  </div>
+</section>
+
+<section class="bg-primary-bg-light dark:bg-secondary-bg-dark py-[90px] px-5">
+  <div class="container flex flex-col items-center mx-auto text-center">
+    <h2 class="text-[35px] leading-[45px] md:text-[45px] md:leading-[55px] text-grey-black dark:text-white font-bold mb-5">
+      Get SimpleX Chat — the most secure &amp; private messenger
+    </h2>
+    <p class="text-base text-grey-black dark:text-white mb-14 max-w-[600px]">
+      The file transfer you just used uses the same data routing protocol as SimpleX Chat. The app has end-to-end encrypted messaging, voice and video calls, groups, and sending files. No account. No phone. No email. No user profile IDs.
+    </p>
+    <div class="flex items-center justify-center gap-4 flex-wrap">
+      <a href="https://apps.apple.com/us/app/simplex-chat/id1605771084" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apple_store.svg"></a>
+      <a href="https://play.google.com/store/apps/details?id=chat.simplex.app" target="_blank"><img class="h-[40px] w-auto" src="/img/new/google_play.svg"></a>
+      <a href="/bg/fdroid"><img class="h-[40px] w-auto" src="/img/new/f_droid.svg"></a>
+      <a href="https://testflight.apple.com/join/DWuT2LQu" target="_blank"><img class="h-[40px] w-auto" src="/img/new/testflight.png"></a>
+      <a href="https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-aarch64.apk" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apk_icon.png"></a>
+    </div>
+  </div>
+</section>
+
+
+  
+    
+    <div id="xftp-protocol" data-scroll-to="" class="overlay hidden fixed top-0 left-0 bottom-0 right-0 before:absolute before:w-full before:h-full bg-transparent before:bg-secondary-bg-light dark:before:bg-primary-bg-dark before:opacity-90 items-center justify-center p-3 md:p-10 z-[10000]">
+        <div class="overlay-card w-full md:w-fit md:max-w-[1276px] bg-white dark:bg-card-bg-dark opacity-100 h-full md:h-fit md:max-h-[660px] z-[10001] rounded-md shadow-[0px_3px_12px_rgba(0,0,0,0.2)] p-6 py-10 sm:p-14 overflow-auto scale-100">
+            <h1 class="text-3xl font-bold text-active-blue mb-6 ">XFTP protocol: the most secure file transfer</h1>
+            <div class="flex flex-col-reverse lg:flex-row gap-10 justify-between">
+                
+                    <div class="lg:max-w-[448px]">
+                        <div class="text-grey-black dark:text-white flex flex-col gap-6 text-base">
+                            <div>
+  <h3 class="font-bold text-lg mb-2">No account required</h3>
+  <p>Each file fragment uses a new random key. Data routers have no "users" or "files" - they transfer encrypted file fragments of fixed sizes.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Triple-encrypted in your browser</h3>
+  <p>File encryption key is present only in the URL hash fragment - your browser never sends it to a server. There are 3 encryption layers: TLS transport, per-recipient encryption (unique ephemeral key per transfer), and file <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span>.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Independent data routers</h3>
+  <p>When file is split to fragments, it is sent via network routers operated by independent parties. No operator can see the actual file size or name. Even if a router is compromised, it can only see encrypted fragments of fixed size. File fragments are cached by network routers for approximately 48 hours.</p>
+</div>
+<p class="mt-4">
+  <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/xftp.md" target="_blank" rel="noopener" class="text-active-blue hover:underline">
+    Read the XFTP protocol specification →
+  </a>
+</p>
+
+                        </div>
+                    </div>
+                
+
+                
+                    <div class="max-w-[448px]">
+                        <div class="flex items-center justify-center">
+                            <img class="w-full max-w-[448px] min-w-[300px] dark:hidden" src="/img/new/xftp-protocol.svg" alt="">
+                            <img class="w-full max-w-[448px] min-w-[300px] hidden dark:block" src="/img/new/xftp-protocol-dark.svg" alt="">
+                        </div>
+                    </div>
+                
+            </div>
+
+            <svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+                <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z"></path>
+            </svg>
+        </div>
+    </div>
+
+
+
+<script>
+  window.__XFTP_I18N__ = {
+    "title": "SimpleX File Transfer",
+    "dropZone": "Drag & drop a file here",
+    "dropZoneHint": "or",
+    "chooseFile": "Choose file",
+    "maxSizeHint": "Max 100 MB - <a href=\"#join-simplex\">SimpleX Chat app</a> supports files up to 1 GB",
+    "encrypting": "Encrypting…",
+    "uploading": "Uploading…",
+    "cancel": "Cancel",
+    "fileUploaded": "File uploaded",
+    "copy": "Copy",
+    "copied": "Copied!",
+    "share": "Share",
+    "expiryHint": "Files are typically available for 48 hours.",
+    "securityNote1": "Your file was encrypted in the browser - data routers never see file contents, name or size.",
+    "securityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "securityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "retry": "Retry",
+    "downloading": "Downloading…",
+    "decrypting": "Decrypting…",
+    "downloadComplete": "Download complete",
+    "download": "Download",
+    "fileTooLarge": "File too large (%size%). Maximum is 100 MB. The <a href=\"#join-simplex\">SimpleX app</a> supports files up to 1 GB.",
+    "fileEmpty": "File is empty.",
+    "invalidLink": "Invalid or corrupted link.",
+    "initError": "Failed to initialize: %error%",
+    "fileAvailable": "File available (~%size%)",
+    "dlSecurityNote1": "This file is encrypted - data routers never see file contents, name or size.",
+    "dlSecurityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "dlSecurityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "workersRequired": "Web Workers required — update your browser"
+  }
+</script>
+
+<script>
+  // Intercept close for #xftp-protocol to add fade-out animation
+  document.getElementById('xftp-protocol')?.addEventListener('click', function(e) {
+    if (e.target.closest('.close-overlay-btn') || (e.target.closest('.overlay') && !e.target.closest('.overlay-card'))) {
+      e.stopPropagation();
+      var el = document.getElementById('xftp-protocol');
+      el.classList.add('overlay-closing');
+      el.addEventListener('animationend', function handler() {
+        el.removeEventListener('animationend', handler);
+        el.classList.remove('flex', 'overlay-closing');
+        el.classList.add('hidden');
+        document.body.classList.remove('lock-scroll');
+        history.replaceState(null, null, ' ');
+      });
+    }
+  }, true);
+
+  // Hide scroll fade gradient when text bottom is visible (works with column-reverse)
+  var scrollArea = document.querySelector('#xftp-protocol .overlay-card > .flex');
+  if (scrollArea) {
+    var textCol = scrollArea.querySelector(':scope > div:first-child > div');
+    function checkScrollBottom() {
+      if (!textCol) return;
+      var scrollRect = scrollArea.getBoundingClientRect();
+      if (scrollRect.height === 0) return; // not laid out yet
+      var textBottom = textCol.getBoundingClientRect().bottom;
+      document.getElementById('xftp-protocol').classList.toggle('scrolled-bottom', textBottom <= scrollRect.bottom + 10);
+    }
+    scrollArea.addEventListener('scroll', checkScrollBottom);
+    new MutationObserver(function() {
+      if (!document.getElementById('xftp-protocol').classList.contains('hidden')) {
+        requestAnimationFrame(checkScrollBottom);
+      }
+    }).observe(document.getElementById('xftp-protocol'), { attributes: true, attributeFilter: ['class'] });
+  }
+</script>
+
+<div id="address-portability" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Address portability</h1><div class="overlay-content"><p>Similarly to <a href="https://en.wikipedia.org/wiki/Local_number_portability">phone number portability</a> (the ability of the customer to transfer the service to another provider without changing the number), the address portability means the ability of a communication service customer to change the service provider without changing the service address. Many <a href="#federated-network">federated networks</a> support SRV records to provide address portability, but allowing service users to set up their own domains for the addresses is not as commonly supported by the available server and client software as for email.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="federated-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Federated network</h1><div class="overlay-content"><p>Federated network is provided by several entities that agree upon the standards and operate the network collectively. This allows the users to choose their provider, that will hold their account, their messaging history and contacts, and communicate with other providers' servers on behalf of the user. The examples are email, XMPP, Matrix and Mastodon.</p><p>The advantage of that design is that there is no single organization that all users depend on, and the standards are more difficult to change, unless it benefits all users. There are several disadvantages: 1) the innovation is slower, 2) each user account still depends on a single organization, and in most cases can't move to another provider without changing their network address – there is no <a href="#address-portability">address portability</a>, 3) the security and privacy are inevitably worse than with the centralized networks.</p><p><a href="https://en.wikipedia.org/wiki/Federation_(information_technology)">Federation on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="anonymous-credentials" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Anonymous credentials</h1><div class="overlay-content"><p>The credential that allows proving something, e.g. the right to access some resource, without identifying the user. This credential can either be generated by a trusted party or by the user themselves and provided together with the request to create the resource. The first approach creates some centralized dependency in most cases. The second approach does not require any trust - this is used in SimpleX network to authorize access to the messaging queues.</p><p><a href="https://en.wikipedia.org/wiki/Digital_credential">Digital credential on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="blockchain" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Blockchain</h1><div class="overlay-content"><p>In a wide sense, blockchain means a sequence of blocks of data, where each block contains a cryptographic hash of the previous block, thus providing integrity to the whole chain. Blockchains are used in many communication and information storage systems to provide integrity and immutability of the data. For example, BluRay disks use blockchain. SimpleX messaging queues also use blockchain - each message includes the hash of the previous message, to ensure the integrity – if any message is modified it will be detected by the recipient when the next message is received. Blockchains are a subset of <a href="#merkle-directed-acyclic-graph">Merkle directed acyclic graphs</a>.</p><p>In a more narrow sense, particularly in media, blockchain is used to refer specifically to distributed ledger, where each record also includes the hash of the previous record, but the blocks have to be agreed by the participating peers using some <a href="https://en.wikipedia.org/wiki/Consensus_(computer_science)">consensus protocol</a>.</p><p><a href="https://en.wikipedia.org/wiki/Blockchain">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="merkle-directed-acyclic-graph" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Merkle directed acyclic graph</h1><div class="overlay-content"><p>Also known as Merkle DAG, a data structure based on a general graph structure where node contains the cryptographic hashes of the previous nodes that point to it. Merkle trees are a subset of Merkle DAGs - in this case each leaf contains a cryptographic hash of the parent.</p><p>This structure by design allows to verify the integrity of the whole structure by computing its hashes and comparing with the hashes included in the nodes, in the same way as with <a href="#blockchain">blockchain</a>.</p><p>The motivation to use DAG in distributed environments instead of a simpler linear blockchain is to allow concurrent additions, when there is no requirement for a single order of added items. Merkle DAG is used, for example, in <a href="https://en.wikipedia.org/wiki/InterPlanetary_File_System">IPFS</a> and will be used in decentralized SimpleX groups.</p><p><a href="https://en.wikipedia.org/wiki/Merkle_tree">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="break-in-recovery" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Break-in recovery</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="double-ratchet-algorithm" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Double ratchet algorithm</h1><div class="overlay-content"><p>It is used by two parties to exchange <a href="#end-to-end-encryption">end-to-end encrypted</a> messages. The parties will use some <a href="#key-agreement-protocol">key agreement protocol</a> to agree on the initial shared secret key.</p><p>Double Ratchet algorithm provides <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>. It is <a href="https://signal.org/docs/specifications/doubleratchet">designed by Signal</a>, and used in SimpleX Chat and many other secure messengers. Most experts consider it the state-of-the-art encryption protocol in message encryption.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="centralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Centralized network</h1><div class="overlay-content"><p>Centralized networks are provided or controlled by a single entity. The examples are Threema, Signal, WhatsApp and Telegram. The advantage of that design is that the provider can innovate faster, and has a centralized approach to security. But the disadvantage is that the provider can change or discontinue the service, and leak, sell or disclose in some other way all users' data, including who they are connected with.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="content-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Content padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="decentralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Decentralized network</h1><div class="overlay-content"><p>Decentralized network is often used to mean "the network based on decentralized blockchain". In its original meaning, decentralized network means that there is no central authority or any other point of centralization in the network, other than network protocols specification. The advantage of decentralized networks is that they are resilient to censorship and to the provider going out of business. The disadvantage is that they are often slower to innovate, and the security may be worse than with the centralized network.</p><p>The examples of decentralized networks are email, web, DNS, XMPP, Matrix, BitTorrent, etc. All these examples have a shared global application-level address space. Cryptocurrency blockchains not only have a shared address space, but also a shared state, so they are more centralized than email. Tor network also has a shared global address space, but also a central authority. SimpleX network does not have a shared application-level address space (it relies on the shared transport-level addresses - SMP relay hostnames or IP addresses), and it does not have any central authority or any shared state.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="defense-in-depth" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Defense in depth</h1><div class="overlay-content"><p>Originally, it is a military strategy that seeks to delay rather than prevent the advance of an attacker, buying time and causing additional casualties by yielding space.</p><p>In information security, defense in depth represents the use of multiple computer security techniques to help mitigate the risk of one component of the defense being compromised or circumvented. An example could be anti-virus software installed on individual workstations when there is already virus protection on the firewalls and servers within the same environment.</p><p>SimpleX network applies defense in depth approach to security by having multiple layers for the communication security and privacy:</p><ul>
+<li>double ratchet algorithm for <a href="#end-to-end-encryption">end-to-end encryption</a> with <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>,</li>
+<li>additional layer of end-to-end encryption for each messaging queue and another encryption layer of encryption from the server to the recipient inside TLS to prevent correlation by ciphertext,</li>
+<li>TLS with only strong ciphers allowed,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-server connection via server offline certificate verification,</li>
+<li>mitigation of replay attacks via signing over transport channel binding,</li>
+<li>multiple layers of <a href="#message-padding">message padding</a> to reduce efficiency of traffic analysis,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-client out-of-band channel when sending the invitation,</li>
+<li>rotation of delivery queues to reduce efficiency of traffic analysis,</li>
+<li>etc.</li>
+</ul><p><a href="https://en.wikipedia.org/wiki/Defence_in_depth">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="end-to-end-encryption" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">End-to-end encryption</h1><div class="overlay-content"><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><p>End-to-end encryption requires agreeing cryptographic keys between the sender and the recipient in a way that no eavesdroppers can access the agreed keys. See <a href="#key-agreement-protocol">key agreement protocol</a>. This key exchange can be compromised via <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>, particularly if key exchange happens via the same communication provider and no out-of-band channel is used to verify key exchange.</p><p><a href="https://en.wikipedia.org/wiki/End-to-end_encryption">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-compromise-security" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-compromise security</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="man-in-the-middle-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Man-in-the-middle attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="message-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Message padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="key-agreement-protocol" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key agreement protocol</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="tooltip-end-to-end-encryption" class="glossary-tooltip"><div class="tooltip-content"><h4 class="tooltip-title">End-to-end encryption</h4><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><button class="read-more-btn open-overlay-btn" data-show-overlay="end-to-end-encryption">Read more</button></div></div><div id="key-exchange" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key exchange</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="mitm-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">MITM attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="non-repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Non-repudiation</h1><div class="overlay-content">Non-repudiation</div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="onion-routing" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Onion routing</h1><div class="overlay-content"><p>A technique for anonymous communication over a computer network that uses multiple layers of message encryption, analogous to the layers of an onion. The encrypted data is transmitted through a series of network nodes called "onion routers," each of which "peels" away a single layer, revealing the data's next destination. The sender remains anonymous because each intermediary knows only the location of the immediately preceding and following nodes.</p><p>The most widely used onion network is <a href="https://en.wikipedia.org/wiki/Tor_(network)">Tor</a>.</p><p>Some elements of SimpleX network use similar ideas in their design - different addresses for the same resource used by different parties, and additional encryption layers. Currently though, SimpleX messaging protocol does not protect sender network address, as the relay server is chosen by the recipient. The delivery relays chosen by sender that are planned for the future would make SimpleX design closer to onion routing.</p><p><a href="https://en.wikipedia.org/wiki/Onion_routing">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="overlay-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Overlay network</h1><div class="overlay-content"><p>Nodes in the overlay network can be thought of as being connected by virtual or logical links, each of which corresponds to a path, perhaps through many physical links, in the underlying network. Tor, for example, is an overlay network on top of IP network, which in its turn is also an overlay network over some underlying physical network.</p><p>SimpleX Clients also form a network using SMP relays and IP or some other overlay network (e.g., Tor), to communicate with each other. SMP relays, on another hand, do not form a network.</p><p><a href="https://en.wikipedia.org/wiki/Overlay_network">Wikipedia</a></p><h1>Non-repudiation</h1><p>The property of the cryptographic or communication system that allows the recipient of the message to prove to any third party that the sender identified by some cryptographic key sent the message. It is the opposite to <a href="#repudiation">repudiation</a>. While in some context non-repudiation may be desirable (e.g., for contractually binding messages), in the context of private communications it may be undesirable.</p><p><a href="https://en.wikipedia.org/wiki/Non-repudiation">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Repudiation</h1><div class="overlay-content"><p>The property of the cryptographic or communication system that allows the sender of the message to plausibly deny having sent the message, because while the recipient can verify that the message was sent by the sender, they cannot prove it to any third party - the recipient has a technical ability to forge the same encrypted message. This is an important quality of private communications, as it allows to have the conversation that can later be denied, similarly to having a private face-to-face conversation.</p><p>See also <a href="#non-repudiation">non-repudiation</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="pairwise-pseudonymous-identifier" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Pairwise pseudonymous identifier</h1><div class="overlay-content"><p>Generalizing <a href="https://csrc.nist.gov/glossary/term/pairwise_pseudonymous_identifier">the definition</a> from NIST Digital Identity Guidelines, it is an opaque unguessable identifier generated by a service used to access a resource by only one party.</p><p>In the context of SimpleX network, these are the identifiers generated by SMP relays to access anonymous messaging queues, with a separate identifier (and access credential) for each accessing party: recipient, sender and and optional notifications subscriber. The same approach is used by XFTP relays to access file chunks, with separate identifiers (and access credentials) for sender and each recipient.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Peer-to-peer</h1><div class="overlay-content"><p>Peer-to-peer (P2P) is the network architecture when participants have equal rights and communicate directly via a general purpose transport or overlay network. Unlike client-server architecture, all peers in a P2P network both provide and consume the resources. In the context of messaging, P2P architecture usually means that the messages are sent between peers, without user accounts or messages being stored on any servers. Examples are Tox, Briar, Cwtch and many others.</p><p>The advantage is that the participants do not depend on any servers. There are <a href="./SIMPLEX.md#comparison-with-p2p9-messaging-protocols">multiple downsides</a> to that architecture, such as no asynchronous message delivery, the need for network-wide peer addresses, possibility of network-wide attacks, that are usually mitigated only by using a centralized authority. These disadvantages are avoided with <a href="#proxied-peer-to-peer">proxied P2P</a> architecture.</p><p><a href="https://en.wikipedia.org/wiki/Peer-to-peer">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="proxied-peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Proxied peer-to-peer</h1><div class="overlay-content"><p>Network topology of the communication system when peers communicate via proxies that do not form the network themselves. Such design is used in Pond, that has a fixed home server for each user, and in SimpleX, that uses multiple relays providing temporary connections.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="perfect-forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Perfect forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-cryptography" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum cryptography</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-hybrid-crypto" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum hybrid crypto</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="recovery-from-compromise" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Recovery from compromise</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="user-identity" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">User identity</h1><div class="overlay-content"><p>In a communication system it refers to anything that uniquely identifies the users to the network. Depending on the communication network, it can be a phone number, email address, username, public key or a random opaque identifier. Most messaging networks rely on some form of user identity. SimpleX appears to be the only messaging network that does not rely on any kind of user identity - see <a href="https://en.wikipedia.org/wiki/Comparison_of_instant_messaging_protocols">this comparison</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div></body></html>
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+                            Системна конзола
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+                            SimpleX bots API
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diff --git a/blog/20241210-simplex-network-v6-2-servers-by-flux-business-chats.html b/blog/20241210-simplex-network-v6-2-servers-by-flux-business-chats.html
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@@ -130,6 +130,8 @@
                 </a>
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diff --git a/blog/20241218-oppose-digital-ids-they-break-law-lead-to-mass-scale-surveillance.html b/blog/20241218-oppose-digital-ids-they-break-law-lead-to-mass-scale-surveillance.html
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@@ -130,6 +130,8 @@
                 </a>
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diff --git a/blog/20250114-simplex-network-large-groups-privacy-preserving-content-moderation.html b/blog/20250114-simplex-network-large-groups-privacy-preserving-content-moderation.html
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@@ -130,6 +130,8 @@
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diff --git a/blog/20250308-simplex-chat-v6-3-new-user-experience-safety-in-public-groups.html b/blog/20250308-simplex-chat-v6-3-new-user-experience-safety-in-public-groups.html
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@@ -130,6 +130,8 @@
                 </a>
             </li>
 
+            
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diff --git a/blog/20250703-simplex-network-protocol-extension-for-securely-connecting-people.html b/blog/20250703-simplex-network-protocol-extension-for-securely-connecting-people.html
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@@ -130,6 +130,8 @@
                 </a>
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diff --git a/blog/20250729-simplex-chat-v6-4-1-welcome-contacts-protect-groups-app-security.html b/blog/20250729-simplex-chat-v6-4-1-welcome-contacts-protect-groups-app-security.html
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@@ -130,6 +130,8 @@
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--- a/blog/index.html
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index e61ea238c2..0f8fb360e0 100644
--- a/contact/index.html
+++ b/contact/index.html
@@ -133,6 +133,8 @@
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diff --git a/cs/contact/index.html b/cs/contact/index.html
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--- a/cs/contact/index.html
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@@ -133,6 +133,8 @@
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diff --git a/cs/fdroid/index.html b/cs/fdroid/index.html
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diff --git a/cs/file/index.html b/cs/file/index.html
new file mode 100644
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--- /dev/null
+++ b/cs/file/index.html
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+<!DOCTYPE html>
+<html lang="cs"
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+        <meta http-equiv="X-UA-Compatible" content="IE=edge">
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        <title>SimpleX File Transfer</title>
+        <meta name="description" content="Send files securely with end-to-end encryption"/>
+        <meta name="Content-Type" content="text/html;charset=utf-8"/>
+        
+        <meta http-equiv="onion-location" content="http://isdb4l77sjqoy2qq7ipum6x3at6hyn3jmxfx4zdhc72ufbmuq4ilwkqd.onion/" />
+        <meta property="og:url" content="https://simplex.chat/" />
+        
+        <meta property="og:type" content="website"/>
+        <meta property="og:title" content="SimpleX File Transfer"/>
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+        <link rel="icon" type="image/png" sizes="96x96" href="/img/favicon.ico"/>
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+    <body class="bg-[#F3FAFF] dark:bg-[#000832]">
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+<header id="navbar">
+    <a href="/cs" class="logo logo-light ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-light.png" alt="logo"></a>
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+                <a href="/cs">
+                    <span class="nav-link-text">Úvod</span>
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+                <a href="/directory/">
+                    <span class="nav-link-text">Složka</span>
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+                    <span class="">Průvodce</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
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+
+                <ul class="sub-menu">
+                    
+                        <li><a href="/docs/guide/readme.html" class="">Rychlý start</a></li>
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+                        <li><a href="/docs/guide/send-messages.html" class="">Odesílání zpráv</a></li>
+                    
+                        <li><a href="/docs/guide/secret-groups.html" class="">Tajné skupiny</a></li>
+                    
+                        <li><a href="/docs/guide/chat-profiles.html" class="">Chat profily</a></li>
+                    
+                        <li><a href="/docs/guide/managing-data.html" class="">Správa dat</a></li>
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+                        <li><a href="/docs/guide/audio-video-calls.html" class="">Audio a video hovory</a></li>
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+                        <li><a href="/docs/guide/privacy-security.html" class="">Soukromí a bezpečnost</a></li>
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+                <ul class="sub-menu">
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md"
+                        target="_blank">Whitepaper
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/privacy">Ochrana soukromí</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/simplex-messaging.md"
+                        target="_blank">SMP protokol
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/protocol/simplex-chat.html">Chat protokol</a></li>
+                    <li><a href="/docs/glossary.html">Rejstřík</a></li>
+
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+
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+                        <li><a href="/docs/simplex.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX síť</a></li>
+                    
+                        <li><a href="/docs/business.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX pro podnikání</a></li>
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+                    
+                        <li><a href="/docs/android.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Přístup k Android souborům</a></li>
+                    
+                        <li><a href="/docs/server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Hostovat SMP server</a></li>
+                    
+                        <li><a href="/docs/xftp-server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Hostovat XFTP Server</a></li>
+                    
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+                    
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+                        <li><a href="/reproduce/" class=" lg:px-[20px] inline-block whitespace-nowrap">Verify & reproduce builds</a></li>
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+                        <li><a href="/transparency/" class=" lg:px-[20px] inline-block whitespace-nowrap">Transparentnost</a></li>
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+                        <li><a href="/security/" class=" lg:px-[20px] inline-block whitespace-nowrap">Bezpečnost</a></li>
+                    
+                        <li><a href="/faq/" class=" lg:px-[20px] inline-block whitespace-nowrap">FAQ (často kladené dotazy)</a></li>
+                    
+
+                    <hr>
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+                    >Přeložit SimpleX Chat
+                    </a></li>
+                    <li><a href="/docs/android.html"
+                    >Přístup k Android souborům
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/blob/stable/apps/simplex-bot-advanced/Main.hs"
+                        target="_blank">Příklad chat bota
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/tree/stable/packages/simplex-chat-client/typescript"
+                        target="_blank">TypeScript SDK
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/cli.html">Terminálové rozhraní příkazového řádku</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq"
+                        target="_blank">SimpleXMQ
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                </ul>
+            </li>
+
+            <hr>
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+            <li class="nav-link ">
+                <a href="/blog">
+                    <span class="nav-link-text">Blog</span>
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+            </svg>
+
+            <svg class="moon" width="469" height="469" viewBox="5 5 20 23" xmlns="http://www.w3.org/2000/svg">
+                <path d="M10.895 7.574c0 7.55 5.179 13.67 11.567 13.67 1.588 0 3.101-0.38 4.479-1.063-1.695 4.46-5.996 7.636-11.051 7.636-6.533 0-11.83-5.297-11.83-11.83 0-4.82 2.888-8.959 7.023-10.803-0.116 0.778-0.188 1.573-0.188 2.39z"></path>
+            </svg>
+        </button>
+
+        
+
+        <button id="cross-btn" class="nav-toggle-btn">
+            <svg id="cross" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+            <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z" />
+        </svg>
+        </button>
+    </div>
+</header>
+<div id="mobile-header">
+    <a href="/cs" class="logo flex dark:hidden ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-light.svg" alt="" srcset=""></a>
+    <a href="/cs" class="logo hidden dark:flex ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-dark.svg" alt="" srcset=""></a>
+
+    <button id="hamburger" class="nav-toggle-btn">
+        <svg viewBox="0 0 100 80" width="36" height="36">
+            <rect width="100" height="15"></rect>
+            <rect y="30" width="100" height="15"></rect>
+            <rect y="60" width="100" height="15"></rect>
+        </svg>
+    </button>
+</div>
+
+
+<script>
+// switch theme
+const sunIcon = document.querySelector('.sun');
+const moonIcon = document.querySelector('.moon');
+
+const userTheme = localStorage.getItem('theme');
+const systemTheme = window.matchMedia('(prefers-color-scheme: dark)').matches;
+const prismThemeLink = document.getElementById('prism-theme')
+
+function iconToggle () {
+    sunIcon.classList.toggle('hidden');
+    moonIcon.classList.toggle('hidden');
+}
+
+function themeCheck() {
+    if (userTheme === 'dark' || (!userTheme && systemTheme)) {
+        document.documentElement.classList.add('dark');
+        moonIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+    }
+    else{
+        sunIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+    }
+}
+themeCheck();
+
+function themeSwitch () {
+    if (document.documentElement.classList.contains('dark')) {
+        document.documentElement.classList.remove('dark');
+        localStorage.setItem('theme', 'light');
+        if(prismThemeLink){
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+        iconToggle();
+    } else {
+        document.documentElement.classList.add('dark');
+        localStorage.setItem('theme', 'dark');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+        iconToggle();
+    }
+}
+
+const nav = document.querySelector('header#navbar');
+
+window.addEventListener('click',(e)=>{
+    if(e.target.closest('.nav-link')){
+        if(e.target.closest('.nav-link').classList.contains('active')){
+            e.target.closest('.nav-link').classList.remove('active');
+        }
+        else{
+            document.querySelectorAll('.nav-link').forEach(el => el.classList.remove('active'))
+            e.target.closest('.nav-link').classList.add('active');
+        }
+    }
+    else if(e.target.closest('.nav-toggle-btn')){
+        if(nav.classList.contains('open')){
+            nav.classList.remove('open');
+            document.getElementById('mobile-header').classList.remove('nav-open');
+            document.documentElement.classList.remove('lock-scroll');
+        }
+        else{
+            document.documentElement.classList.add('lock-scroll');
+            document.getElementById('mobile-header').classList.add('nav-open');
+            nav.classList.add('open');
+        }
+    }
+    else if(e.target.closest('.theme-switch-btn')){
+        themeSwitch();
+    }
+});
+</script>
+
+        <html><head><link rel="stylesheet" href="/file-assets/index.css">
+<style>
+  /* Reset website .card styles that conflict with xftp bundle */
+  #app .card { cursor: default; }
+  #app .card,
+  #app .card > div { transition: unset; height: auto; }
+  #app .card > div > * { opacity: unset; max-height: unset; transform: unset; transition: unset; }
+
+  /* Align xftp bundle with website design */
+  #app { font-family: inherit; color: #3F484B; max-width: 600px; width: 100%; margin: 0 auto; padding: 0; }
+  #app .card { background: transparent; box-shadow: none; padding: 0; border-radius: 0; }
+  #app .card > h1 { display: none; }
+  .dark #app h1 { color: #fff; }
+  #app .drop-zone { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; }
+  #app .drop-zone.drag-over { border-color: #0053D0; background: #DBEEFF; }
+  #app .btn { background: #0053D0; border-radius: 34px; padding: 12px 32px; font-size: .9rem; font-weight: 600; }
+  #app .btn:hover { background: #1661D1; }
+  #app .btn-secondary { background: #6b7280; border-radius: 34px; }
+  #app .hint { color: #6b7280; }
+  #app .link-row input { border-radius: 8px; border-color: #c5d3de; }
+  #app .security-note { background: #ffffff; border-radius: 12px; color: #3F484B; }
+  #app .security-note a { color: #0197FF; }
+  #app .success { color: #0053D0; }
+
+  .dark #app { color: #e5e7eb; }
+  .dark #app .card { background: transparent; box-shadow: none; }
+  .dark #app .drop-zone { border-color: #374151; }
+  .dark #app .drop-zone.drag-over { border-color: #70F0F9; background: #1B325C; }
+  .dark #app .btn { background: #70F0F9; color: #000832; }
+  .dark #app .btn:hover { background: #66D9E2; }
+  .dark #app .link-row input { border-color: #374151; background: #071C46; color: #e5e7eb; }
+  .dark #app .security-note { background: #0B2A59; color: #d1d5db; }
+  .dark #app .security-note a { color: #70F0F9; }
+  .dark #app .success { color: #70F0F9; }
+
+  #app #upload-error { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; text-align: center; }
+  .dark #app #upload-error { border-color: #374151; }
+
+  #app .stage > .btn { margin-top: 20px; }
+  #app .security-note { margin-top: 20px; }
+  #app .drop-zone .btn { margin: 10px 0 16px; }
+
+  /* Protocol overlay: image fixed, text scrolls natively */
+  /* Push popup below navbar at all widths */
+  #xftp-protocol { padding-top: 70px; }
+  #xftp-protocol .overlay-card {
+    display: flex;
+    flex-direction: column;
+    position: relative;
+    overflow: hidden;
+  }
+  @media (min-width: 768px) {
+    #xftp-protocol .overlay-card { max-height: min(660px, 100%); }
+  }
+  #xftp-protocol .overlay-card > h1 {
+    flex-shrink: 0;
+    padding-bottom: 16px;
+    margin-bottom: 0;
+    z-index: 1;
+  }
+  @media (min-width: 1024px) and (max-height: 750px) {
+    #xftp-protocol .overlay-card > h1 {
+      font-size: 22px;
+    }
+  }
+  /* .flex is the full-width scroll container */
+  #xftp-protocol .overlay-card > .flex {
+    flex: 1;
+    min-height: 0;
+    overflow-y: auto;
+    scrollbar-width: thin;
+    scrollbar-color: #c5d3de transparent;
+  }
+  .dark #xftp-protocol .overlay-card > .flex {
+    scrollbar-color: #374151 transparent;
+  }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar { width: 6px; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-track { background: transparent; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #c5d3de; border-radius: 3px; }
+  .dark #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #374151; }
+  /* Desktop: text stays left, image fixed on right */
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card > .flex > div:first-child {
+      max-width: 50%;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child {
+      position: absolute;
+      right: 56px;
+      top: 0;
+      bottom: 0;
+      left: 55%;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      pointer-events: none;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child > div {
+      height: 100%;
+      padding: 40px 0;
+      box-sizing: border-box;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child img {
+      height: 100%;
+    }
+  }
+  #xftp-protocol .close-overlay-btn {
+    position: absolute;
+    top: 24px;
+    right: 24px;
+    cursor: pointer;
+    z-index: 3;
+    fill: #606C71;
+  }
+  .dark #xftp-protocol .close-overlay-btn { fill: #e5e7eb; }
+  /* Scroll fade: gradient over text area only, hidden at bottom */
+  #xftp-protocol .overlay-card::after {
+    content: '';
+    position: absolute;
+    bottom: 40px;
+    left: 24px;
+    right: 24px;
+    height: 48px;
+    background: linear-gradient(rgba(255,255,255,0), #fff);
+    pointer-events: none;
+    z-index: 2;
+    transition: opacity 0.2s;
+  }
+  .dark #xftp-protocol .overlay-card::after {
+    background: linear-gradient(rgba(7,28,70,0), #071C46);
+  }
+  @media (min-width: 640px) {
+    #xftp-protocol .overlay-card::after { bottom: 56px; left: 56px; right: 56px; }
+  }
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card::after { right: 55%; }
+  }
+  #xftp-protocol.scrolled-bottom .overlay-card::after { opacity: 0; }
+  #xftp-protocol .overlay-card.flex,
+  #xftp-protocol.flex .overlay-card { animation: overlaySlideIn 0.25s ease-out; }
+  @keyframes overlaySlideIn {
+    from { opacity: 0; transform: scale(0.95) translateY(10px); }
+    to { opacity: 1; transform: scale(1) translateY(0); }
+  }
+  #xftp-protocol.overlay-closing { animation: overlayFadeOut 0.2s ease-in forwards; }
+  #xftp-protocol.overlay-closing .overlay-card { animation: overlaySlideOut 0.2s ease-in forwards; }
+  @keyframes overlayFadeOut {
+    from { opacity: 1; }
+    to { opacity: 0; }
+  }
+  @keyframes overlaySlideOut {
+    from { opacity: 1; transform: scale(1) translateY(0); }
+    to { opacity: 0; transform: scale(0.95) translateY(10px); }
+  }
+
+  .file-proto-link {
+    font-size: 1.25rem;
+    font-weight: 600;
+    background: linear-gradient(90deg, #001aa7 0%, #0095e7 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+    text-decoration: none;
+  }
+  .dark .file-proto-link {
+    background: linear-gradient(90deg, #019bfe 0%, #64fdff 58%, #c8feff 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+  }
+
+</style>
+
+</head><body><section class="bg-secondary-bg-light dark:bg-primary-bg-dark py-10 mt-[66px] px-5">
+  <div class="container flex flex-col items-center mx-auto">
+    <noscript>
+      <p class="text-center text-grey-black dark:text-white py-10">
+        JavaScript is required for file transfer.
+      </p>
+    </noscript>
+    <h1 class="text-[38px] text-center font-bold text-active-blue mb-8">SimpleX File Transfer</h1>
+    <div id="app" data-xftp-app="" data-no-hashchange="" class="w-full">
+      <div class="card">
+        <div class="drop-zone">
+          <p>Drag &amp; drop a file here</p>
+          <p class="hint">or</p>
+          <span class="btn">Choose file</span>
+          <p class="hint">Max 100 MB - <a href="#join-simplex">SimpleX Chat app</a> supports files up to 1 GB</p>
+        </div>
+      </div>
+    </div>
+    <template id="dl-placeholder">
+      <div class="card">
+        <h1>SimpleX File Transfer</h1>
+        <div class="stage">
+          <p>File available</p>
+          <button class="btn">Download</button>
+          <div class="security-note">
+            <p>This file is encrypted - data routers never see file contents, name or size.</p>
+            <p>The encryption key is in the link’s hash fragment - it is never sent to any server.</p>
+            <p>For better security, use <a href="https://simplex.chat/download">SimpleX Chat</a> app.</p>
+          </div>
+        </div>
+      </div>
+    </template>
+    <script>if(location.hash.length>50){var a=document.getElementById("app"),t=document.getElementById("dl-placeholder");if(a&&t)a.replaceChildren(t.content.cloneNode(true))}</script>
+    <script type="module" src="/file-assets/index.js"></script>
+
+    <p class="text-base text-center text-grey-black dark:text-white mt-10 max-w-[600px]">Send files securely with <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span> — no accounts, no tracking.</p>
+    <a href="javascript:void(0)" data-show-overlay="xftp-protocol" class="open-overlay-btn file-proto-link mt-3 block text-center">Learn more about XFTP protocol</a>
+  </div>
+</section>
+
+<section class="bg-primary-bg-light dark:bg-secondary-bg-dark py-[90px] px-5">
+  <div class="container flex flex-col items-center mx-auto text-center">
+    <h2 class="text-[35px] leading-[45px] md:text-[45px] md:leading-[55px] text-grey-black dark:text-white font-bold mb-5">
+      Get SimpleX Chat — the most secure &amp; private messenger
+    </h2>
+    <p class="text-base text-grey-black dark:text-white mb-14 max-w-[600px]">
+      The file transfer you just used uses the same data routing protocol as SimpleX Chat. The app has end-to-end encrypted messaging, voice and video calls, groups, and sending files. No account. No phone. No email. No user profile IDs.
+    </p>
+    <div class="flex items-center justify-center gap-4 flex-wrap">
+      <a href="https://apps.apple.com/us/app/simplex-chat/id1605771084" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apple_store.svg"></a>
+      <a href="https://play.google.com/store/apps/details?id=chat.simplex.app" target="_blank"><img class="h-[40px] w-auto" src="/img/new/google_play.svg"></a>
+      <a href="/cs/fdroid"><img class="h-[40px] w-auto" src="/img/new/f_droid.svg"></a>
+      <a href="https://testflight.apple.com/join/DWuT2LQu" target="_blank"><img class="h-[40px] w-auto" src="/img/new/testflight.png"></a>
+      <a href="https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-aarch64.apk" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apk_icon.png"></a>
+    </div>
+  </div>
+</section>
+
+
+  
+    
+    <div id="xftp-protocol" data-scroll-to="" class="overlay hidden fixed top-0 left-0 bottom-0 right-0 before:absolute before:w-full before:h-full bg-transparent before:bg-secondary-bg-light dark:before:bg-primary-bg-dark before:opacity-90 items-center justify-center p-3 md:p-10 z-[10000]">
+        <div class="overlay-card w-full md:w-fit md:max-w-[1276px] bg-white dark:bg-card-bg-dark opacity-100 h-full md:h-fit md:max-h-[660px] z-[10001] rounded-md shadow-[0px_3px_12px_rgba(0,0,0,0.2)] p-6 py-10 sm:p-14 overflow-auto scale-100">
+            <h1 class="text-3xl font-bold text-active-blue mb-6 ">XFTP protocol: the most secure file transfer</h1>
+            <div class="flex flex-col-reverse lg:flex-row gap-10 justify-between">
+                
+                    <div class="lg:max-w-[448px]">
+                        <div class="text-grey-black dark:text-white flex flex-col gap-6 text-base">
+                            <div>
+  <h3 class="font-bold text-lg mb-2">No account required</h3>
+  <p>Each file fragment uses a new random key. Data routers have no "users" or "files" - they transfer encrypted file fragments of fixed sizes.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Triple-encrypted in your browser</h3>
+  <p>File encryption key is present only in the URL hash fragment - your browser never sends it to a server. There are 3 encryption layers: TLS transport, per-recipient encryption (unique ephemeral key per transfer), and file <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span>.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Independent data routers</h3>
+  <p>When file is split to fragments, it is sent via network routers operated by independent parties. No operator can see the actual file size or name. Even if a router is compromised, it can only see encrypted fragments of fixed size. File fragments are cached by network routers for approximately 48 hours.</p>
+</div>
+<p class="mt-4">
+  <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/xftp.md" target="_blank" rel="noopener" class="text-active-blue hover:underline">
+    Read the XFTP protocol specification →
+  </a>
+</p>
+
+                        </div>
+                    </div>
+                
+
+                
+                    <div class="max-w-[448px]">
+                        <div class="flex items-center justify-center">
+                            <img class="w-full max-w-[448px] min-w-[300px] dark:hidden" src="/img/new/xftp-protocol.svg" alt="">
+                            <img class="w-full max-w-[448px] min-w-[300px] hidden dark:block" src="/img/new/xftp-protocol-dark.svg" alt="">
+                        </div>
+                    </div>
+                
+            </div>
+
+            <svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
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+            </svg>
+        </div>
+    </div>
+
+
+
+<script>
+  window.__XFTP_I18N__ = {
+    "title": "SimpleX File Transfer",
+    "dropZone": "Drag & drop a file here",
+    "dropZoneHint": "or",
+    "chooseFile": "Choose file",
+    "maxSizeHint": "Max 100 MB - <a href=\"#join-simplex\">SimpleX Chat app</a> supports files up to 1 GB",
+    "encrypting": "Encrypting…",
+    "uploading": "Uploading…",
+    "cancel": "Cancel",
+    "fileUploaded": "File uploaded",
+    "copy": "Copy",
+    "copied": "Copied!",
+    "share": "Share",
+    "expiryHint": "Files are typically available for 48 hours.",
+    "securityNote1": "Your file was encrypted in the browser - data routers never see file contents, name or size.",
+    "securityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "securityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "retry": "Retry",
+    "downloading": "Downloading…",
+    "decrypting": "Decrypting…",
+    "downloadComplete": "Download complete",
+    "download": "Download",
+    "fileTooLarge": "File too large (%size%). Maximum is 100 MB. The <a href=\"#join-simplex\">SimpleX app</a> supports files up to 1 GB.",
+    "fileEmpty": "File is empty.",
+    "invalidLink": "Invalid or corrupted link.",
+    "initError": "Failed to initialize: %error%",
+    "fileAvailable": "File available (~%size%)",
+    "dlSecurityNote1": "This file is encrypted - data routers never see file contents, name or size.",
+    "dlSecurityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "dlSecurityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "workersRequired": "Web Workers required — update your browser"
+  }
+</script>
+
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+
+<div id="address-portability" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Address portability</h1><div class="overlay-content"><p>Similarly to <a href="https://en.wikipedia.org/wiki/Local_number_portability">phone number portability</a> (the ability of the customer to transfer the service to another provider without changing the number), the address portability means the ability of a communication service customer to change the service provider without changing the service address. Many <a href="#federated-network">federated networks</a> support SRV records to provide address portability, but allowing service users to set up their own domains for the addresses is not as commonly supported by the available server and client software as for email.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="federated-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Federated network</h1><div class="overlay-content"><p>Federated network is provided by several entities that agree upon the standards and operate the network collectively. This allows the users to choose their provider, that will hold their account, their messaging history and contacts, and communicate with other providers' servers on behalf of the user. The examples are email, XMPP, Matrix and Mastodon.</p><p>The advantage of that design is that there is no single organization that all users depend on, and the standards are more difficult to change, unless it benefits all users. There are several disadvantages: 1) the innovation is slower, 2) each user account still depends on a single organization, and in most cases can't move to another provider without changing their network address – there is no <a href="#address-portability">address portability</a>, 3) the security and privacy are inevitably worse than with the centralized networks.</p><p><a href="https://en.wikipedia.org/wiki/Federation_(information_technology)">Federation on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="anonymous-credentials" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Anonymous credentials</h1><div class="overlay-content"><p>The credential that allows proving something, e.g. the right to access some resource, without identifying the user. This credential can either be generated by a trusted party or by the user themselves and provided together with the request to create the resource. The first approach creates some centralized dependency in most cases. The second approach does not require any trust - this is used in SimpleX network to authorize access to the messaging queues.</p><p><a href="https://en.wikipedia.org/wiki/Digital_credential">Digital credential on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="blockchain" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Blockchain</h1><div class="overlay-content"><p>In a wide sense, blockchain means a sequence of blocks of data, where each block contains a cryptographic hash of the previous block, thus providing integrity to the whole chain. Blockchains are used in many communication and information storage systems to provide integrity and immutability of the data. For example, BluRay disks use blockchain. SimpleX messaging queues also use blockchain - each message includes the hash of the previous message, to ensure the integrity – if any message is modified it will be detected by the recipient when the next message is received. Blockchains are a subset of <a href="#merkle-directed-acyclic-graph">Merkle directed acyclic graphs</a>.</p><p>In a more narrow sense, particularly in media, blockchain is used to refer specifically to distributed ledger, where each record also includes the hash of the previous record, but the blocks have to be agreed by the participating peers using some <a href="https://en.wikipedia.org/wiki/Consensus_(computer_science)">consensus protocol</a>.</p><p><a href="https://en.wikipedia.org/wiki/Blockchain">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="merkle-directed-acyclic-graph" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Merkle directed acyclic graph</h1><div class="overlay-content"><p>Also known as Merkle DAG, a data structure based on a general graph structure where node contains the cryptographic hashes of the previous nodes that point to it. Merkle trees are a subset of Merkle DAGs - in this case each leaf contains a cryptographic hash of the parent.</p><p>This structure by design allows to verify the integrity of the whole structure by computing its hashes and comparing with the hashes included in the nodes, in the same way as with <a href="#blockchain">blockchain</a>.</p><p>The motivation to use DAG in distributed environments instead of a simpler linear blockchain is to allow concurrent additions, when there is no requirement for a single order of added items. Merkle DAG is used, for example, in <a href="https://en.wikipedia.org/wiki/InterPlanetary_File_System">IPFS</a> and will be used in decentralized SimpleX groups.</p><p><a href="https://en.wikipedia.org/wiki/Merkle_tree">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="break-in-recovery" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Break-in recovery</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="double-ratchet-algorithm" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Double ratchet algorithm</h1><div class="overlay-content"><p>It is used by two parties to exchange <a href="#end-to-end-encryption">end-to-end encrypted</a> messages. The parties will use some <a href="#key-agreement-protocol">key agreement protocol</a> to agree on the initial shared secret key.</p><p>Double Ratchet algorithm provides <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>. It is <a href="https://signal.org/docs/specifications/doubleratchet">designed by Signal</a>, and used in SimpleX Chat and many other secure messengers. Most experts consider it the state-of-the-art encryption protocol in message encryption.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="centralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Centralized network</h1><div class="overlay-content"><p>Centralized networks are provided or controlled by a single entity. The examples are Threema, Signal, WhatsApp and Telegram. The advantage of that design is that the provider can innovate faster, and has a centralized approach to security. But the disadvantage is that the provider can change or discontinue the service, and leak, sell or disclose in some other way all users' data, including who they are connected with.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="content-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Content padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="decentralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Decentralized network</h1><div class="overlay-content"><p>Decentralized network is often used to mean "the network based on decentralized blockchain". In its original meaning, decentralized network means that there is no central authority or any other point of centralization in the network, other than network protocols specification. The advantage of decentralized networks is that they are resilient to censorship and to the provider going out of business. The disadvantage is that they are often slower to innovate, and the security may be worse than with the centralized network.</p><p>The examples of decentralized networks are email, web, DNS, XMPP, Matrix, BitTorrent, etc. All these examples have a shared global application-level address space. Cryptocurrency blockchains not only have a shared address space, but also a shared state, so they are more centralized than email. Tor network also has a shared global address space, but also a central authority. SimpleX network does not have a shared application-level address space (it relies on the shared transport-level addresses - SMP relay hostnames or IP addresses), and it does not have any central authority or any shared state.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="defense-in-depth" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Defense in depth</h1><div class="overlay-content"><p>Originally, it is a military strategy that seeks to delay rather than prevent the advance of an attacker, buying time and causing additional casualties by yielding space.</p><p>In information security, defense in depth represents the use of multiple computer security techniques to help mitigate the risk of one component of the defense being compromised or circumvented. An example could be anti-virus software installed on individual workstations when there is already virus protection on the firewalls and servers within the same environment.</p><p>SimpleX network applies defense in depth approach to security by having multiple layers for the communication security and privacy:</p><ul>
+<li>double ratchet algorithm for <a href="#end-to-end-encryption">end-to-end encryption</a> with <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>,</li>
+<li>additional layer of end-to-end encryption for each messaging queue and another encryption layer of encryption from the server to the recipient inside TLS to prevent correlation by ciphertext,</li>
+<li>TLS with only strong ciphers allowed,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-server connection via server offline certificate verification,</li>
+<li>mitigation of replay attacks via signing over transport channel binding,</li>
+<li>multiple layers of <a href="#message-padding">message padding</a> to reduce efficiency of traffic analysis,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-client out-of-band channel when sending the invitation,</li>
+<li>rotation of delivery queues to reduce efficiency of traffic analysis,</li>
+<li>etc.</li>
+</ul><p><a href="https://en.wikipedia.org/wiki/Defence_in_depth">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="end-to-end-encryption" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">End-to-end encryption</h1><div class="overlay-content"><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><p>End-to-end encryption requires agreeing cryptographic keys between the sender and the recipient in a way that no eavesdroppers can access the agreed keys. See <a href="#key-agreement-protocol">key agreement protocol</a>. This key exchange can be compromised via <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>, particularly if key exchange happens via the same communication provider and no out-of-band channel is used to verify key exchange.</p><p><a href="https://en.wikipedia.org/wiki/End-to-end_encryption">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-compromise-security" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-compromise security</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="man-in-the-middle-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Man-in-the-middle attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="message-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Message padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="key-agreement-protocol" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key agreement protocol</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="tooltip-end-to-end-encryption" class="glossary-tooltip"><div class="tooltip-content"><h4 class="tooltip-title">End-to-end encryption</h4><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><button class="read-more-btn open-overlay-btn" data-show-overlay="end-to-end-encryption">Read more</button></div></div><div id="key-exchange" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key exchange</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="mitm-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">MITM attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="non-repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Non-repudiation</h1><div class="overlay-content">Non-repudiation</div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="onion-routing" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Onion routing</h1><div class="overlay-content"><p>A technique for anonymous communication over a computer network that uses multiple layers of message encryption, analogous to the layers of an onion. The encrypted data is transmitted through a series of network nodes called "onion routers," each of which "peels" away a single layer, revealing the data's next destination. The sender remains anonymous because each intermediary knows only the location of the immediately preceding and following nodes.</p><p>The most widely used onion network is <a href="https://en.wikipedia.org/wiki/Tor_(network)">Tor</a>.</p><p>Some elements of SimpleX network use similar ideas in their design - different addresses for the same resource used by different parties, and additional encryption layers. Currently though, SimpleX messaging protocol does not protect sender network address, as the relay server is chosen by the recipient. The delivery relays chosen by sender that are planned for the future would make SimpleX design closer to onion routing.</p><p><a href="https://en.wikipedia.org/wiki/Onion_routing">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="overlay-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Overlay network</h1><div class="overlay-content"><p>Nodes in the overlay network can be thought of as being connected by virtual or logical links, each of which corresponds to a path, perhaps through many physical links, in the underlying network. Tor, for example, is an overlay network on top of IP network, which in its turn is also an overlay network over some underlying physical network.</p><p>SimpleX Clients also form a network using SMP relays and IP or some other overlay network (e.g., Tor), to communicate with each other. SMP relays, on another hand, do not form a network.</p><p><a href="https://en.wikipedia.org/wiki/Overlay_network">Wikipedia</a></p><h1>Non-repudiation</h1><p>The property of the cryptographic or communication system that allows the recipient of the message to prove to any third party that the sender identified by some cryptographic key sent the message. It is the opposite to <a href="#repudiation">repudiation</a>. While in some context non-repudiation may be desirable (e.g., for contractually binding messages), in the context of private communications it may be undesirable.</p><p><a href="https://en.wikipedia.org/wiki/Non-repudiation">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Repudiation</h1><div class="overlay-content"><p>The property of the cryptographic or communication system that allows the sender of the message to plausibly deny having sent the message, because while the recipient can verify that the message was sent by the sender, they cannot prove it to any third party - the recipient has a technical ability to forge the same encrypted message. This is an important quality of private communications, as it allows to have the conversation that can later be denied, similarly to having a private face-to-face conversation.</p><p>See also <a href="#non-repudiation">non-repudiation</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="pairwise-pseudonymous-identifier" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Pairwise pseudonymous identifier</h1><div class="overlay-content"><p>Generalizing <a href="https://csrc.nist.gov/glossary/term/pairwise_pseudonymous_identifier">the definition</a> from NIST Digital Identity Guidelines, it is an opaque unguessable identifier generated by a service used to access a resource by only one party.</p><p>In the context of SimpleX network, these are the identifiers generated by SMP relays to access anonymous messaging queues, with a separate identifier (and access credential) for each accessing party: recipient, sender and and optional notifications subscriber. The same approach is used by XFTP relays to access file chunks, with separate identifiers (and access credentials) for sender and each recipient.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Peer-to-peer</h1><div class="overlay-content"><p>Peer-to-peer (P2P) is the network architecture when participants have equal rights and communicate directly via a general purpose transport or overlay network. Unlike client-server architecture, all peers in a P2P network both provide and consume the resources. In the context of messaging, P2P architecture usually means that the messages are sent between peers, without user accounts or messages being stored on any servers. Examples are Tox, Briar, Cwtch and many others.</p><p>The advantage is that the participants do not depend on any servers. There are <a href="./SIMPLEX.md#comparison-with-p2p9-messaging-protocols">multiple downsides</a> to that architecture, such as no asynchronous message delivery, the need for network-wide peer addresses, possibility of network-wide attacks, that are usually mitigated only by using a centralized authority. These disadvantages are avoided with <a href="#proxied-peer-to-peer">proxied P2P</a> architecture.</p><p><a href="https://en.wikipedia.org/wiki/Peer-to-peer">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="proxied-peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Proxied peer-to-peer</h1><div class="overlay-content"><p>Network topology of the communication system when peers communicate via proxies that do not form the network themselves. Such design is used in Pond, that has a fixed home server for each user, and in SimpleX, that uses multiple relays providing temporary connections.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="perfect-forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Perfect forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-cryptography" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum cryptography</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-hybrid-crypto" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum hybrid crypto</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="recovery-from-compromise" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Recovery from compromise</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="user-identity" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">User identity</h1><div class="overlay-content"><p>In a communication system it refers to anything that uniquely identifies the users to the network. Depending on the communication network, it can be a phone number, email address, username, public key or a random opaque identifier. Most messaging networks rely on some form of user identity. SimpleX appears to be the only messaging network that does not rely on any kind of user identity - see <a href="https://en.wikipedia.org/wiki/Comparison_of_instant_messaging_protocols">this comparison</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div></body></html>
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+                            target="_blank"
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+                            target="_blank"
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+                            Terminálové rozhraní příkazového řádku
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+                            target="_blank"
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+                            SimpleX bots API
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+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M20.874 40.9268C31.9197 40.9268 40.874 31.9724 40.874 20.9268C40.874 9.88108 31.9197 0.926758 20.874 0.926758C9.82834 0.926758 0.874023 9.88108 0.874023 20.9268C0.874023 31.9724 9.82834 40.9268 20.874 40.9268ZM30.4091 16.615C31.9031 16.615 33.1157 17.8276 33.1157 19.3216C33.1157 20.426 32.4445 21.3787 31.5567 21.8118C31.6 22.0716 31.6217 22.3315 31.6217 22.613C31.6217 26.7705 26.7929 30.1268 20.8165 30.1268C14.8402 30.1268 10.0114 26.7705 10.0114 22.613C10.0114 22.3315 10.0331 22.05 10.0764 21.7902C9.12362 21.3571 8.47402 20.426 8.47402 19.3216C8.47402 17.8276 9.68662 16.615 11.1807 16.615C11.8953 16.615 12.5665 16.9181 13.0429 17.3728C14.9051 16.0086 17.4819 15.1642 20.3618 15.0776L21.726 8.6248C21.7693 8.49488 21.8343 8.3866 21.9425 8.32164C22.0508 8.25668 22.1807 8.23504 22.3106 8.25668L26.7929 9.20944C27.0961 8.55984 27.7457 8.12676 28.5035 8.12676C29.5646 8.12676 30.4307 8.99292 30.4307
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+                            </svg>
+                        </a>
+                        <a href="https://twitter.com/simplexchat" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 41 41" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M20.4575 40.9268C31.5032 40.9268 40.4575 31.9725 40.4575 20.9268C40.4575 9.88106 31.5032 0.926758 20.4575 0.926758C9.41182 0.926758 0.45752 9.88106 0.45752 20.9268C0.45752 31.9725 9.41182 40.9268 20.4575 40.9268ZM29.916 16.7766C29.916 23.1157 25.014 30.4265 16.0519 30.4265V30.423C13.4038 30.4265 10.8115 29.6795 8.58252 28.2719C8.96846 28.3174 9.35558 28.3397 9.74271 28.3409C11.9372 28.3432 14.0688 27.6182 15.7942 26.283C13.7101 26.2444 11.8802 24.9055 11.2425 22.9507C11.9716 23.0898 12.7245 23.0619 13.4418 22.869C11.1689 22.4165 9.53371 20.4504 9.53252 18.1671V18.1062C10.2106 18.478 10.9694 18.6835 11.7448 18.7057C9.60377 17.2981 8.94233 14.4948 10.2355 12.3026C12.7103 15.2992 16.3606 17.1207 20.2782 17.3147C19.8851 15.6487 20.4231 13.902 21.6878 12.7306C23.6507 10.9137 26.737 11.0073 28.5824 12.9387C29.6737 12.7271 30.7199 12.3327 31.677 11.7738C31.3125 12.8857 30.5513 13.828 29.5348 14.4277C30.5002
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+                            </svg>
+                        </a>
+                        <a href="https://www.linkedin.com/company/simplex-chat/" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 41 41" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M20.0408 0.926758C8.9951 0.926758 0.0407715 9.88109 0.0407715 20.9268C0.0407715 31.9724 8.9951 40.9268 20.0408 40.9268C31.0864 40.9268 40.0408 31.9724 40.0408 20.9268C40.0408 9.88109 31.0864 0.926758 20.0408 0.926758ZM9.6421 17.4916H14.1745V31.1098H9.6421V17.4916ZM14.4731 13.279C14.4437 11.9438 13.4889 10.9268 11.9383 10.9268C10.3878 10.9268 9.3741 11.9438 9.3741 13.279C9.3741 14.5866 10.3579 15.6328 11.8794 15.6328H11.9084C13.4889 15.6328 14.4731 14.5866 14.4731 13.279ZM25.3017 17.1718C28.2843 17.1718 30.5203 19.1187 30.5203 23.3015L30.5201 31.1098H25.9879V23.824C25.9879 21.994 25.3319 20.7453 23.6912 20.7453C22.439 20.7453 21.6932 21.5871 21.3656 22.4003C21.2458 22.6916 21.2164 23.0976 21.2164 23.5046V31.1101H16.6834C16.6834 31.1101 16.7431 18.7698 16.6834 17.492H21.2164V19.4208C21.8179 18.4936 22.8953 17.1718 25.3017 17.1718Z" />
+                            </svg>
+                        </a>
+                        <a href="https://simplex.chat/feed.rss" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 512 512" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M256 512C397.385 512 512 397.385 512 256C512 114.615 397.385 0 256 0C114.615 0 0 114.615 0 256C0 397.385 114.615 512 256 512ZM132.791 157.572C215.586 161.137 279.503 196.841 323.612 267.517C344.138 302.436 354.186 339.959 354.57 380.122H406.814C409.639 231.301 280.977 103.1 132.791 106.05V157.572ZM309.994 343.843C311.593 356.035 313.096 367.877 314.65 380.116H261.161C260.496 344.968 248.303 314.452 223.472 289.485C198.613 264.491 168.097 252.282 132.755 251.38V199.743C198.318 196.346 288.694 244.344 309.994 343.843ZM132.766 336.706C129.293 354.261 137.796 370.323 154.848 378.004L155.461 378.242C156.267 378.558 156.912 378.81 157.577 378.985C173.012 383.066 186.298 379.318 196.604 367.168C206.463 355.544 208.397 342.145 201.87 328.354C195.205 314.271 183.419 307.215 167.834 307.356C151.188 307.509 135.971 320.504 132.766 336.706Z" />
+                            </svg>
+                        </a>
+                    </div>
+                </div>
+            </article>
+        </div>
+        <a href="#" class="text-grey-black dark:text-white text-[16px] text-center lg:ltr:text-left lg:rtl:text-right font-medium leading-[28px] tracking-[0.01em] block mt-[60px]">© 2020-2025 SimpleX Chat | Projekt s otevřeným zdrojovým kódem</a>
+    </div>
+</section>
+
+
+        <script src="/js/swiper-bundle.min.js"></script>
+        <script src="/js/script.js"></script>
+    </body>
+</html>
diff --git a/cs/index.html b/cs/index.html
index e2e932cfb0..ea67f48ed2 100644
--- a/cs/index.html
+++ b/cs/index.html
@@ -153,6 +153,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/cs/invitation/index.html b/cs/invitation/index.html
index bf37e149c3..e778f90dd5 100644
--- a/cs/invitation/index.html
+++ b/cs/invitation/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/cs/messaging/index.html b/cs/messaging/index.html
index 699e913649..26d791851d 100644
--- a/cs/messaging/index.html
+++ b/cs/messaging/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/cs/old/index.html b/cs/old/index.html
index 62c70ac61c..316c518b22 100644
--- a/cs/old/index.html
+++ b/cs/old/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/cs/why/index.html b/cs/why/index.html
index c2c2d18519..ca66ca3d4c 100644
--- a/cs/why/index.html
+++ b/cs/why/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/css/style.css b/css/style.css
index 4b9f5c34c0..4cc3ba3147 100644
--- a/css/style.css
+++ b/css/style.css
@@ -976,10 +976,10 @@ p a{
     height: 100%;
   }
 
-  h1{
+  .hero-section-1 h1{
     font-size: 48px !important;
   }
-  h2{
+  .hero-section-1 h2{
     font-size: 36px !important;
   }
 }
diff --git a/css/tailwind.css b/css/tailwind.css
index 22b00c3737..e21473d078 100644
--- a/css/tailwind.css
+++ b/css/tailwind.css
@@ -861,6 +861,14 @@ video {
   margin-top: 0.5rem;
 }
 
+.mt-3 {
+  margin-top: 0.75rem;
+}
+
+.mt-4 {
+  margin-top: 1rem;
+}
+
 .mt-6 {
   margin-top: 1.5rem;
 }
@@ -1170,6 +1178,10 @@ video {
   max-width: 541px;
 }
 
+.max-w-\[600px\] {
+  max-width: 600px;
+}
+
 .max-w-\[602px\] {
   max-width: 602px;
 }
@@ -1198,6 +1210,10 @@ video {
   flex: 2.5;
 }
 
+.flex-shrink {
+  flex-shrink: 1;
+}
+
 .flex-grow {
   flex-grow: 1;
 }
@@ -2077,6 +2093,10 @@ video {
   transition-duration: 150ms;
 }
 
+.ease-in {
+  transition-timing-function: cubic-bezier(0.4, 0, 1, 1);
+}
+
 .placeholder\:text-base::-moz-placeholder {
   font-size: 1rem;
   line-height: 1.5rem;
@@ -2139,6 +2159,10 @@ video {
   opacity: 0.9;
 }
 
+.hover\:underline:hover {
+  text-decoration-line: underline;
+}
+
 .focus\:outline-none:focus {
   outline: 2px solid transparent;
   outline-offset: 2px;
@@ -2601,6 +2625,10 @@ video {
     font-size: 40px;
   }
 
+  .md\:text-\[45px\] {
+    font-size: 45px;
+  }
+
   .md\:text-\[55px\] {
     font-size: 55px;
   }
diff --git a/de/contact/index.html b/de/contact/index.html
index 68377e845b..77db3508d3 100644
--- a/de/contact/index.html
+++ b/de/contact/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/de/fdroid/index.html b/de/fdroid/index.html
index e8241f057e..cf00591752 100644
--- a/de/fdroid/index.html
+++ b/de/fdroid/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/de/file/index.html b/de/file/index.html
new file mode 100644
index 0000000000..21eca9b35a
--- /dev/null
+++ b/de/file/index.html
@@ -0,0 +1,888 @@
+<!DOCTYPE html>
+<html lang="de"
+    
+        
+    
+        
+    
+        
+    
+        
+            dir="ltr"
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    >
+    <head>
+        <meta charset="UTF-8">
+        <meta http-equiv="X-UA-Compatible" content="IE=edge">
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        <title>SimpleX File Transfer</title>
+        <meta name="description" content="Send files securely with end-to-end encryption"/>
+        <meta name="Content-Type" content="text/html;charset=utf-8"/>
+        
+        <meta http-equiv="onion-location" content="http://isdb4l77sjqoy2qq7ipum6x3at6hyn3jmxfx4zdhc72ufbmuq4ilwkqd.onion/" />
+        <meta property="og:url" content="https://simplex.chat/" />
+        
+        <meta property="og:type" content="website"/>
+        <meta property="og:title" content="SimpleX File Transfer"/>
+        <meta property="og:description" content="Send files securely with end-to-end encryption"/>
+        <meta property="og:image" content="https://simplex.chat/img/share_simplex.jpg"/>
+        <meta name="twitter:card" content="summary"/>
+        <link rel="icon" type="image/png" sizes="96x96" href="/img/favicon.ico"/>
+
+        <link rel="stylesheet" href="/css/swiper-bundle.min.css">
+        <link rel="stylesheet" href="/css/blog.css">
+        <link href="/css/tailwind.css" rel="stylesheet"/>
+        <link rel="stylesheet" href="/css/style.css">
+        <link rel="stylesheet" href="/css/design3-nav.css">
+        <script async defer src="https://buttons.github.io/buttons.js"></script>
+        <script src="/js/flag-anchor.js"></script>
+        
+    </head>
+    <body class="bg-[#F3FAFF] dark:bg-[#000832]">
+        
+
+
+    
+
+    
+
+    
+
+    
+        
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+
+<header id="navbar">
+    <a href="/de" class="logo logo-light ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-light.png" alt="logo"></a>
+    <a href="/de" class="logo logo-dark ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-dark.png" alt="logo"></a>
+
+    <nav id="menu">
+        <ul>
+            <li class="nav-link ">
+                <a href="/de">
+                    <span class="nav-link-text">Startseite</span>
+                </a>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/directory/">
+                    <span class="nav-link-text">Verzeichnis</span>
+                </a>
+            </li>
+
+            
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">Leitfaden</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    
+                        <li><a href="/docs/guide/readme.html" class="">Schnellstart</a></li>
+                    
+                        <li><a href="/docs/guide/send-messages.html" class="">Nachrichten versenden</a></li>
+                    
+                        <li><a href="/docs/guide/secret-groups.html" class="">Geheime Gruppen</a></li>
+                    
+                        <li><a href="/docs/guide/chat-profiles.html" class="">Chat-Profile</a></li>
+                    
+                        <li><a href="/docs/guide/managing-data.html" class="">Daten verwalten</a></li>
+                    
+                        <li><a href="/docs/guide/audio-video-calls.html" class="">Audio- & Videoanrufe</a></li>
+                    
+                        <li><a href="/docs/guide/privacy-security.html" class="">Datenschutz & Sicherheit</a></li>
+                    
+                        <li><a href="/docs/guide/app-settings.html" class="">App-Einstellungen</a></li>
+                    
+                        <li><a href="/docs/guide/making-connections.html" class="">Verbindungen herstellen</a></li>
+                    
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">Referenz</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md"
+                        target="_blank">Whitepaper
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/privacy">Datenschutzrichtlinie</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/simplex-messaging.md"
+                        target="_blank">SMP-Protokoll
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/protocol/simplex-chat.html">Chat-Protokoll</a></li>
+                    <li><a href="/docs/glossary.html">Glossar</a></li>
+
+                    <hr>
+
+                    
+                        <li><a href="/docs/simplex.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX-Netzwerk</a></li>
+                    
+                        <li><a href="/docs/business.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX für geschäftliche Anwendungen</a></li>
+                    
+                        <li><a href="/docs/directory.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX-Verzeichnis</a></li>
+                    
+                        <li><a href="/docs/android.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Zugriff auf Android-Dateien</a></li>
+                    
+                        <li><a href="/docs/server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Eigenen SMP-Server hosten</a></li>
+                    
+                        <li><a href="/docs/xftp-server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Eigenen XFTP-Server hosten</a></li>
+                    
+                        <li><a href="/docs/webrtc.html" class=" lg:px-[20px] inline-block whitespace-nowrap">WebRTC-Server</a></li>
+                    
+                        <li><a href="/downloads/" class=" lg:px-[20px] inline-block whitespace-nowrap">Downloads</a></li>
+                    
+                        <li><a href="/reproduce/" class=" lg:px-[20px] inline-block whitespace-nowrap">Verify & reproduce builds</a></li>
+                    
+                        <li><a href="/transparency/" class=" lg:px-[20px] inline-block whitespace-nowrap">Transparenzberichte</a></li>
+                    
+                        <li><a href="/security/" class=" lg:px-[20px] inline-block whitespace-nowrap">Sicherheitskonzept</a></li>
+                    
+                        <li><a href="/faq/" class=" lg:px-[20px] inline-block whitespace-nowrap">FAQ</a></li>
+                    
+
+                    <hr>
+
+                    <li><a href="/docs/translations.html"
+                    >SimpleX Chat übersetzen
+                    </a></li>
+                    <li><a href="/docs/android.html"
+                    >Zugriff auf Android-Dateien
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/blob/stable/apps/simplex-bot-advanced/Main.hs"
+                        target="_blank">Beispiel für einen Chatbot
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/tree/stable/packages/simplex-chat-client/typescript"
+                        target="_blank">TypeScript SDK
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/cli.html">Terminal-Kommandozeilen-Schnittstelle</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq"
+                        target="_blank">SimpleXMQ
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/blog">
+                    <span class="nav-link-text">Blog</span>
+                </a>
+            </li>
+        </ul>
+    </nav>
+
+    <div class="right-links">
+        
+            <a class="box-btn token md:hidden" href="/donate">
+                Spenden
+            </a>
+        
+        <button href="#" class="theme-switch-btn">
+            <svg class="sun" width="469" height="469" viewBox="0 0 469 469" fill="none" xmlns="http://www.w3.org/2000/svg">
+            <path d="M225.768 1.44594C220.301 3.84594 214.701 10.6459 213.768 15.9793C213.234 18.3793 213.101 31.7126 213.368 45.7126L213.768 71.1793L217.634 76.1126C226.701 88.1126 242.968 87.5793 252.301 75.0459C254.968 71.5793 255.101 69.5793 255.101 42.2459C255.101 14.9126 254.968 12.9126 252.301 9.44594C250.834 7.44594 248.034 4.51261 246.168 3.17928C241.768 -0.154057 231.101 -1.08739 225.768 1.44594Z"/>
+            <path d="M72.9687 65.3128C63.7687 71.5794 60.1687 81.4461 63.7687 91.1794C65.502 95.4461 98.702 129.446 104.035 132.379C106.035 133.446 110.569 134.246 114.035 134.246C126.035 134.246 134.435 125.846 134.435 113.846C134.435 110.379 133.635 105.846 132.569 103.846C129.635 98.5128 95.6353 65.3128 91.3687 63.5794C85.102 61.3128 77.902 61.9794 72.9687 65.3128Z"/>
+            <path d="M377.102 63.7128C373.102 65.3128 338.969 98.7794 336.302 103.846C335.236 105.846 334.436 110.379 334.436 113.846C334.436 125.846 342.836 134.246 354.836 134.246C358.302 134.246 362.836 133.446 364.836 132.379C370.169 129.446 403.369 95.4461 405.102 91.1794C408.702 81.4461 405.102 71.5794 395.902 65.3128C391.102 61.9794 383.102 61.3128 377.102 63.7128Z"/>
+            <path d="M211.635 108.246C185.635 113.179 163.502 125.046 144.302 144.112C117.902 170.512 104.968 203.579 106.835 240.246C109.768 297.712 149.102 344.912 205.902 359.179C218.568 362.379 250.302 362.379 262.968 359.179C310.435 347.312 345.768 312.646 358.702 265.046C362.435 251.446 362.835 219.446 359.368 205.712C347.368 158.112 312.302 122.379 265.235 110.112C251.768 106.512 225.502 105.579 211.635 108.246Z"/>
+            <path d="M12.4349 214.779C-0.498477 220.379 -4.09848 237.579 5.23486 248.246C11.2349 255.046 15.6349 255.846 45.3682 255.313C74.0349 254.913 75.1015 254.646 81.6349 245.713C85.9015 239.979 85.5015 228.113 80.8349 221.979C74.4349 213.713 71.2349 212.913 42.1682 212.913C23.7682 213.046 15.2349 213.579 12.4349 214.779Z"/>
+            <path d="M396.035 215.179C393.635 216.379 390.035 219.445 388.035 221.979C383.368 228.112 382.968 239.979 387.235 245.712C394.035 254.779 394.301 254.912 426.435 254.912C458.568 254.912 458.835 254.779 465.635 245.712C469.501 240.512 469.501 227.979 465.635 222.779C458.968 213.845 458.301 213.579 428.035 213.179C404.435 212.912 399.768 213.179 396.035 215.179Z"/>
+            <path d="M103.101 336.779C96.7013 340.779 65.368 373.179 63.768 377.313C57.368 394.513 74.168 411.313 91.368 404.913C95.6347 403.179 129.635 369.979 132.568 364.646C135.368 359.446 134.968 349.046 131.768 343.846C126.168 334.646 112.035 331.179 103.101 336.779Z"/>
+            <path d="M344.035 336.912C341.635 338.379 338.569 341.445 337.102 343.845C333.902 349.045 333.502 359.445 336.302 364.645C339.235 369.979 373.235 403.179 377.502 404.912C387.235 408.512 397.102 404.912 403.369 395.712C406.702 390.779 407.369 383.579 405.102 377.312C403.369 373.045 370.169 339.045 364.835 336.112C359.635 333.312 349.235 333.712 344.035 336.912Z"/>
+            <path d="M225.368 385.712C222.968 387.046 219.368 390.112 217.368 392.646L213.768 397.312V426.379C213.768 458.246 213.901 458.779 222.968 465.446C228.168 469.312 240.701 469.312 245.901 465.446C254.834 458.779 255.101 457.979 255.501 428.246C256.034 397.579 255.234 394.379 246.834 387.979C241.101 383.579 231.634 382.512 225.368 385.712Z"/>
+            </svg>
+
+            <svg class="moon" width="469" height="469" viewBox="5 5 20 23" xmlns="http://www.w3.org/2000/svg">
+                <path d="M10.895 7.574c0 7.55 5.179 13.67 11.567 13.67 1.588 0 3.101-0.38 4.479-1.063-1.695 4.46-5.996 7.636-11.051 7.636-6.533 0-11.83-5.297-11.83-11.83 0-4.82 2.888-8.959 7.023-10.803-0.116 0.778-0.188 1.573-0.188 2.39z"></path>
+            </svg>
+        </button>
+
+        
+
+        <button id="cross-btn" class="nav-toggle-btn">
+            <svg id="cross" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+            <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z" />
+        </svg>
+        </button>
+    </div>
+</header>
+<div id="mobile-header">
+    <a href="/de" class="logo flex dark:hidden ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-light.svg" alt="" srcset=""></a>
+    <a href="/de" class="logo hidden dark:flex ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-dark.svg" alt="" srcset=""></a>
+
+    <button id="hamburger" class="nav-toggle-btn">
+        <svg viewBox="0 0 100 80" width="36" height="36">
+            <rect width="100" height="15"></rect>
+            <rect y="30" width="100" height="15"></rect>
+            <rect y="60" width="100" height="15"></rect>
+        </svg>
+    </button>
+</div>
+
+
+<script>
+// switch theme
+const sunIcon = document.querySelector('.sun');
+const moonIcon = document.querySelector('.moon');
+
+const userTheme = localStorage.getItem('theme');
+const systemTheme = window.matchMedia('(prefers-color-scheme: dark)').matches;
+const prismThemeLink = document.getElementById('prism-theme')
+
+function iconToggle () {
+    sunIcon.classList.toggle('hidden');
+    moonIcon.classList.toggle('hidden');
+}
+
+function themeCheck() {
+    if (userTheme === 'dark' || (!userTheme && systemTheme)) {
+        document.documentElement.classList.add('dark');
+        moonIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+    }
+    else{
+        sunIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+    }
+}
+themeCheck();
+
+function themeSwitch () {
+    if (document.documentElement.classList.contains('dark')) {
+        document.documentElement.classList.remove('dark');
+        localStorage.setItem('theme', 'light');
+        if(prismThemeLink){
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+        iconToggle();
+    } else {
+        document.documentElement.classList.add('dark');
+        localStorage.setItem('theme', 'dark');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+        iconToggle();
+    }
+}
+
+const nav = document.querySelector('header#navbar');
+
+window.addEventListener('click',(e)=>{
+    if(e.target.closest('.nav-link')){
+        if(e.target.closest('.nav-link').classList.contains('active')){
+            e.target.closest('.nav-link').classList.remove('active');
+        }
+        else{
+            document.querySelectorAll('.nav-link').forEach(el => el.classList.remove('active'))
+            e.target.closest('.nav-link').classList.add('active');
+        }
+    }
+    else if(e.target.closest('.nav-toggle-btn')){
+        if(nav.classList.contains('open')){
+            nav.classList.remove('open');
+            document.getElementById('mobile-header').classList.remove('nav-open');
+            document.documentElement.classList.remove('lock-scroll');
+        }
+        else{
+            document.documentElement.classList.add('lock-scroll');
+            document.getElementById('mobile-header').classList.add('nav-open');
+            nav.classList.add('open');
+        }
+    }
+    else if(e.target.closest('.theme-switch-btn')){
+        themeSwitch();
+    }
+});
+</script>
+
+        <html><head><link rel="stylesheet" href="/file-assets/index.css">
+<style>
+  /* Reset website .card styles that conflict with xftp bundle */
+  #app .card { cursor: default; }
+  #app .card,
+  #app .card > div { transition: unset; height: auto; }
+  #app .card > div > * { opacity: unset; max-height: unset; transform: unset; transition: unset; }
+
+  /* Align xftp bundle with website design */
+  #app { font-family: inherit; color: #3F484B; max-width: 600px; width: 100%; margin: 0 auto; padding: 0; }
+  #app .card { background: transparent; box-shadow: none; padding: 0; border-radius: 0; }
+  #app .card > h1 { display: none; }
+  .dark #app h1 { color: #fff; }
+  #app .drop-zone { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; }
+  #app .drop-zone.drag-over { border-color: #0053D0; background: #DBEEFF; }
+  #app .btn { background: #0053D0; border-radius: 34px; padding: 12px 32px; font-size: .9rem; font-weight: 600; }
+  #app .btn:hover { background: #1661D1; }
+  #app .btn-secondary { background: #6b7280; border-radius: 34px; }
+  #app .hint { color: #6b7280; }
+  #app .link-row input { border-radius: 8px; border-color: #c5d3de; }
+  #app .security-note { background: #ffffff; border-radius: 12px; color: #3F484B; }
+  #app .security-note a { color: #0197FF; }
+  #app .success { color: #0053D0; }
+
+  .dark #app { color: #e5e7eb; }
+  .dark #app .card { background: transparent; box-shadow: none; }
+  .dark #app .drop-zone { border-color: #374151; }
+  .dark #app .drop-zone.drag-over { border-color: #70F0F9; background: #1B325C; }
+  .dark #app .btn { background: #70F0F9; color: #000832; }
+  .dark #app .btn:hover { background: #66D9E2; }
+  .dark #app .link-row input { border-color: #374151; background: #071C46; color: #e5e7eb; }
+  .dark #app .security-note { background: #0B2A59; color: #d1d5db; }
+  .dark #app .security-note a { color: #70F0F9; }
+  .dark #app .success { color: #70F0F9; }
+
+  #app #upload-error { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; text-align: center; }
+  .dark #app #upload-error { border-color: #374151; }
+
+  #app .stage > .btn { margin-top: 20px; }
+  #app .security-note { margin-top: 20px; }
+  #app .drop-zone .btn { margin: 10px 0 16px; }
+
+  /* Protocol overlay: image fixed, text scrolls natively */
+  /* Push popup below navbar at all widths */
+  #xftp-protocol { padding-top: 70px; }
+  #xftp-protocol .overlay-card {
+    display: flex;
+    flex-direction: column;
+    position: relative;
+    overflow: hidden;
+  }
+  @media (min-width: 768px) {
+    #xftp-protocol .overlay-card { max-height: min(660px, 100%); }
+  }
+  #xftp-protocol .overlay-card > h1 {
+    flex-shrink: 0;
+    padding-bottom: 16px;
+    margin-bottom: 0;
+    z-index: 1;
+  }
+  @media (min-width: 1024px) and (max-height: 750px) {
+    #xftp-protocol .overlay-card > h1 {
+      font-size: 22px;
+    }
+  }
+  /* .flex is the full-width scroll container */
+  #xftp-protocol .overlay-card > .flex {
+    flex: 1;
+    min-height: 0;
+    overflow-y: auto;
+    scrollbar-width: thin;
+    scrollbar-color: #c5d3de transparent;
+  }
+  .dark #xftp-protocol .overlay-card > .flex {
+    scrollbar-color: #374151 transparent;
+  }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar { width: 6px; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-track { background: transparent; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #c5d3de; border-radius: 3px; }
+  .dark #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #374151; }
+  /* Desktop: text stays left, image fixed on right */
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card > .flex > div:first-child {
+      max-width: 50%;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child {
+      position: absolute;
+      right: 56px;
+      top: 0;
+      bottom: 0;
+      left: 55%;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      pointer-events: none;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child > div {
+      height: 100%;
+      padding: 40px 0;
+      box-sizing: border-box;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child img {
+      height: 100%;
+    }
+  }
+  #xftp-protocol .close-overlay-btn {
+    position: absolute;
+    top: 24px;
+    right: 24px;
+    cursor: pointer;
+    z-index: 3;
+    fill: #606C71;
+  }
+  .dark #xftp-protocol .close-overlay-btn { fill: #e5e7eb; }
+  /* Scroll fade: gradient over text area only, hidden at bottom */
+  #xftp-protocol .overlay-card::after {
+    content: '';
+    position: absolute;
+    bottom: 40px;
+    left: 24px;
+    right: 24px;
+    height: 48px;
+    background: linear-gradient(rgba(255,255,255,0), #fff);
+    pointer-events: none;
+    z-index: 2;
+    transition: opacity 0.2s;
+  }
+  .dark #xftp-protocol .overlay-card::after {
+    background: linear-gradient(rgba(7,28,70,0), #071C46);
+  }
+  @media (min-width: 640px) {
+    #xftp-protocol .overlay-card::after { bottom: 56px; left: 56px; right: 56px; }
+  }
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card::after { right: 55%; }
+  }
+  #xftp-protocol.scrolled-bottom .overlay-card::after { opacity: 0; }
+  #xftp-protocol .overlay-card.flex,
+  #xftp-protocol.flex .overlay-card { animation: overlaySlideIn 0.25s ease-out; }
+  @keyframes overlaySlideIn {
+    from { opacity: 0; transform: scale(0.95) translateY(10px); }
+    to { opacity: 1; transform: scale(1) translateY(0); }
+  }
+  #xftp-protocol.overlay-closing { animation: overlayFadeOut 0.2s ease-in forwards; }
+  #xftp-protocol.overlay-closing .overlay-card { animation: overlaySlideOut 0.2s ease-in forwards; }
+  @keyframes overlayFadeOut {
+    from { opacity: 1; }
+    to { opacity: 0; }
+  }
+  @keyframes overlaySlideOut {
+    from { opacity: 1; transform: scale(1) translateY(0); }
+    to { opacity: 0; transform: scale(0.95) translateY(10px); }
+  }
+
+  .file-proto-link {
+    font-size: 1.25rem;
+    font-weight: 600;
+    background: linear-gradient(90deg, #001aa7 0%, #0095e7 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+    text-decoration: none;
+  }
+  .dark .file-proto-link {
+    background: linear-gradient(90deg, #019bfe 0%, #64fdff 58%, #c8feff 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+  }
+
+</style>
+
+</head><body><section class="bg-secondary-bg-light dark:bg-primary-bg-dark py-10 mt-[66px] px-5">
+  <div class="container flex flex-col items-center mx-auto">
+    <noscript>
+      <p class="text-center text-grey-black dark:text-white py-10">
+        JavaScript is required for file transfer.
+      </p>
+    </noscript>
+    <h1 class="text-[38px] text-center font-bold text-active-blue mb-8">SimpleX File Transfer</h1>
+    <div id="app" data-xftp-app="" data-no-hashchange="" class="w-full">
+      <div class="card">
+        <div class="drop-zone">
+          <p>Drag &amp; drop a file here</p>
+          <p class="hint">or</p>
+          <span class="btn">Choose file</span>
+          <p class="hint">Max 100 MB - <a href="#join-simplex">SimpleX Chat app</a> supports files up to 1 GB</p>
+        </div>
+      </div>
+    </div>
+    <template id="dl-placeholder">
+      <div class="card">
+        <h1>SimpleX File Transfer</h1>
+        <div class="stage">
+          <p>File available</p>
+          <button class="btn">Download</button>
+          <div class="security-note">
+            <p>This file is encrypted - data routers never see file contents, name or size.</p>
+            <p>The encryption key is in the link’s hash fragment - it is never sent to any server.</p>
+            <p>For better security, use <a href="https://simplex.chat/download">SimpleX Chat</a> app.</p>
+          </div>
+        </div>
+      </div>
+    </template>
+    <script>if(location.hash.length>50){var a=document.getElementById("app"),t=document.getElementById("dl-placeholder");if(a&&t)a.replaceChildren(t.content.cloneNode(true))}</script>
+    <script type="module" src="/file-assets/index.js"></script>
+
+    <p class="text-base text-center text-grey-black dark:text-white mt-10 max-w-[600px]">Send files securely with <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span> — no accounts, no tracking.</p>
+    <a href="javascript:void(0)" data-show-overlay="xftp-protocol" class="open-overlay-btn file-proto-link mt-3 block text-center">Learn more about XFTP protocol</a>
+  </div>
+</section>
+
+<section class="bg-primary-bg-light dark:bg-secondary-bg-dark py-[90px] px-5">
+  <div class="container flex flex-col items-center mx-auto text-center">
+    <h2 class="text-[35px] leading-[45px] md:text-[45px] md:leading-[55px] text-grey-black dark:text-white font-bold mb-5">
+      Get SimpleX Chat — the most secure &amp; private messenger
+    </h2>
+    <p class="text-base text-grey-black dark:text-white mb-14 max-w-[600px]">
+      The file transfer you just used uses the same data routing protocol as SimpleX Chat. The app has end-to-end encrypted messaging, voice and video calls, groups, and sending files. No account. No phone. No email. No user profile IDs.
+    </p>
+    <div class="flex items-center justify-center gap-4 flex-wrap">
+      <a href="https://apps.apple.com/us/app/simplex-chat/id1605771084" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apple_store.svg"></a>
+      <a href="https://play.google.com/store/apps/details?id=chat.simplex.app" target="_blank"><img class="h-[40px] w-auto" src="/img/new/google_play.svg"></a>
+      <a href="/de/fdroid"><img class="h-[40px] w-auto" src="/img/new/f_droid.svg"></a>
+      <a href="https://testflight.apple.com/join/DWuT2LQu" target="_blank"><img class="h-[40px] w-auto" src="/img/new/testflight.png"></a>
+      <a href="https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-aarch64.apk" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apk_icon.png"></a>
+    </div>
+  </div>
+</section>
+
+
+  
+    
+    <div id="xftp-protocol" data-scroll-to="" class="overlay hidden fixed top-0 left-0 bottom-0 right-0 before:absolute before:w-full before:h-full bg-transparent before:bg-secondary-bg-light dark:before:bg-primary-bg-dark before:opacity-90 items-center justify-center p-3 md:p-10 z-[10000]">
+        <div class="overlay-card w-full md:w-fit md:max-w-[1276px] bg-white dark:bg-card-bg-dark opacity-100 h-full md:h-fit md:max-h-[660px] z-[10001] rounded-md shadow-[0px_3px_12px_rgba(0,0,0,0.2)] p-6 py-10 sm:p-14 overflow-auto scale-100">
+            <h1 class="text-3xl font-bold text-active-blue mb-6 ">XFTP protocol: the most secure file transfer</h1>
+            <div class="flex flex-col-reverse lg:flex-row gap-10 justify-between">
+                
+                    <div class="lg:max-w-[448px]">
+                        <div class="text-grey-black dark:text-white flex flex-col gap-6 text-base">
+                            <div>
+  <h3 class="font-bold text-lg mb-2">No account required</h3>
+  <p>Each file fragment uses a new random key. Data routers have no "users" or "files" - they transfer encrypted file fragments of fixed sizes.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Triple-encrypted in your browser</h3>
+  <p>File encryption key is present only in the URL hash fragment - your browser never sends it to a server. There are 3 encryption layers: TLS transport, per-recipient encryption (unique ephemeral key per transfer), and file <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span>.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Independent data routers</h3>
+  <p>When file is split to fragments, it is sent via network routers operated by independent parties. No operator can see the actual file size or name. Even if a router is compromised, it can only see encrypted fragments of fixed size. File fragments are cached by network routers for approximately 48 hours.</p>
+</div>
+<p class="mt-4">
+  <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/xftp.md" target="_blank" rel="noopener" class="text-active-blue hover:underline">
+    Read the XFTP protocol specification →
+  </a>
+</p>
+
+                        </div>
+                    </div>
+                
+
+                
+                    <div class="max-w-[448px]">
+                        <div class="flex items-center justify-center">
+                            <img class="w-full max-w-[448px] min-w-[300px] dark:hidden" src="/img/new/xftp-protocol.svg" alt="">
+                            <img class="w-full max-w-[448px] min-w-[300px] hidden dark:block" src="/img/new/xftp-protocol-dark.svg" alt="">
+                        </div>
+                    </div>
+                
+            </div>
+
+            <svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+                <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z"></path>
+            </svg>
+        </div>
+    </div>
+
+
+
+<script>
+  window.__XFTP_I18N__ = {
+    "title": "SimpleX File Transfer",
+    "dropZone": "Drag & drop a file here",
+    "dropZoneHint": "or",
+    "chooseFile": "Choose file",
+    "maxSizeHint": "Max 100 MB - <a href=\"#join-simplex\">SimpleX Chat app</a> supports files up to 1 GB",
+    "encrypting": "Encrypting…",
+    "uploading": "Uploading…",
+    "cancel": "Cancel",
+    "fileUploaded": "File uploaded",
+    "copy": "Copy",
+    "copied": "Copied!",
+    "share": "Share",
+    "expiryHint": "Files are typically available for 48 hours.",
+    "securityNote1": "Your file was encrypted in the browser - data routers never see file contents, name or size.",
+    "securityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "securityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "retry": "Retry",
+    "downloading": "Downloading…",
+    "decrypting": "Decrypting…",
+    "downloadComplete": "Download complete",
+    "download": "Download",
+    "fileTooLarge": "File too large (%size%). Maximum is 100 MB. The <a href=\"#join-simplex\">SimpleX app</a> supports files up to 1 GB.",
+    "fileEmpty": "File is empty.",
+    "invalidLink": "Invalid or corrupted link.",
+    "initError": "Failed to initialize: %error%",
+    "fileAvailable": "File available (~%size%)",
+    "dlSecurityNote1": "This file is encrypted - data routers never see file contents, name or size.",
+    "dlSecurityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "dlSecurityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "workersRequired": "Web Workers required — update your browser"
+  }
+</script>
+
+<script>
+  // Intercept close for #xftp-protocol to add fade-out animation
+  document.getElementById('xftp-protocol')?.addEventListener('click', function(e) {
+    if (e.target.closest('.close-overlay-btn') || (e.target.closest('.overlay') && !e.target.closest('.overlay-card'))) {
+      e.stopPropagation();
+      var el = document.getElementById('xftp-protocol');
+      el.classList.add('overlay-closing');
+      el.addEventListener('animationend', function handler() {
+        el.removeEventListener('animationend', handler);
+        el.classList.remove('flex', 'overlay-closing');
+        el.classList.add('hidden');
+        document.body.classList.remove('lock-scroll');
+        history.replaceState(null, null, ' ');
+      });
+    }
+  }, true);
+
+  // Hide scroll fade gradient when text bottom is visible (works with column-reverse)
+  var scrollArea = document.querySelector('#xftp-protocol .overlay-card > .flex');
+  if (scrollArea) {
+    var textCol = scrollArea.querySelector(':scope > div:first-child > div');
+    function checkScrollBottom() {
+      if (!textCol) return;
+      var scrollRect = scrollArea.getBoundingClientRect();
+      if (scrollRect.height === 0) return; // not laid out yet
+      var textBottom = textCol.getBoundingClientRect().bottom;
+      document.getElementById('xftp-protocol').classList.toggle('scrolled-bottom', textBottom <= scrollRect.bottom + 10);
+    }
+    scrollArea.addEventListener('scroll', checkScrollBottom);
+    new MutationObserver(function() {
+      if (!document.getElementById('xftp-protocol').classList.contains('hidden')) {
+        requestAnimationFrame(checkScrollBottom);
+      }
+    }).observe(document.getElementById('xftp-protocol'), { attributes: true, attributeFilter: ['class'] });
+  }
+</script>
+
+<div id="address-portability" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Address portability</h1><div class="overlay-content"><p>Similarly to <a href="https://en.wikipedia.org/wiki/Local_number_portability">phone number portability</a> (the ability of the customer to transfer the service to another provider without changing the number), the address portability means the ability of a communication service customer to change the service provider without changing the service address. Many <a href="#federated-network">federated networks</a> support SRV records to provide address portability, but allowing service users to set up their own domains for the addresses is not as commonly supported by the available server and client software as for email.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="federated-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Federated network</h1><div class="overlay-content"><p>Federated network is provided by several entities that agree upon the standards and operate the network collectively. This allows the users to choose their provider, that will hold their account, their messaging history and contacts, and communicate with other providers' servers on behalf of the user. The examples are email, XMPP, Matrix and Mastodon.</p><p>The advantage of that design is that there is no single organization that all users depend on, and the standards are more difficult to change, unless it benefits all users. There are several disadvantages: 1) the innovation is slower, 2) each user account still depends on a single organization, and in most cases can't move to another provider without changing their network address – there is no <a href="#address-portability">address portability</a>, 3) the security and privacy are inevitably worse than with the centralized networks.</p><p><a href="https://en.wikipedia.org/wiki/Federation_(information_technology)">Federation on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="anonymous-credentials" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Anonymous credentials</h1><div class="overlay-content"><p>The credential that allows proving something, e.g. the right to access some resource, without identifying the user. This credential can either be generated by a trusted party or by the user themselves and provided together with the request to create the resource. The first approach creates some centralized dependency in most cases. The second approach does not require any trust - this is used in SimpleX network to authorize access to the messaging queues.</p><p><a href="https://en.wikipedia.org/wiki/Digital_credential">Digital credential on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="blockchain" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Blockchain</h1><div class="overlay-content"><p>In a wide sense, blockchain means a sequence of blocks of data, where each block contains a cryptographic hash of the previous block, thus providing integrity to the whole chain. Blockchains are used in many communication and information storage systems to provide integrity and immutability of the data. For example, BluRay disks use blockchain. SimpleX messaging queues also use blockchain - each message includes the hash of the previous message, to ensure the integrity – if any message is modified it will be detected by the recipient when the next message is received. Blockchains are a subset of <a href="#merkle-directed-acyclic-graph">Merkle directed acyclic graphs</a>.</p><p>In a more narrow sense, particularly in media, blockchain is used to refer specifically to distributed ledger, where each record also includes the hash of the previous record, but the blocks have to be agreed by the participating peers using some <a href="https://en.wikipedia.org/wiki/Consensus_(computer_science)">consensus protocol</a>.</p><p><a href="https://en.wikipedia.org/wiki/Blockchain">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="merkle-directed-acyclic-graph" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Merkle directed acyclic graph</h1><div class="overlay-content"><p>Also known as Merkle DAG, a data structure based on a general graph structure where node contains the cryptographic hashes of the previous nodes that point to it. Merkle trees are a subset of Merkle DAGs - in this case each leaf contains a cryptographic hash of the parent.</p><p>This structure by design allows to verify the integrity of the whole structure by computing its hashes and comparing with the hashes included in the nodes, in the same way as with <a href="#blockchain">blockchain</a>.</p><p>The motivation to use DAG in distributed environments instead of a simpler linear blockchain is to allow concurrent additions, when there is no requirement for a single order of added items. Merkle DAG is used, for example, in <a href="https://en.wikipedia.org/wiki/InterPlanetary_File_System">IPFS</a> and will be used in decentralized SimpleX groups.</p><p><a href="https://en.wikipedia.org/wiki/Merkle_tree">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="break-in-recovery" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Break-in recovery</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="double-ratchet-algorithm" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Double ratchet algorithm</h1><div class="overlay-content"><p>It is used by two parties to exchange <a href="#end-to-end-encryption">end-to-end encrypted</a> messages. The parties will use some <a href="#key-agreement-protocol">key agreement protocol</a> to agree on the initial shared secret key.</p><p>Double Ratchet algorithm provides <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>. It is <a href="https://signal.org/docs/specifications/doubleratchet">designed by Signal</a>, and used in SimpleX Chat and many other secure messengers. Most experts consider it the state-of-the-art encryption protocol in message encryption.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="centralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Centralized network</h1><div class="overlay-content"><p>Centralized networks are provided or controlled by a single entity. The examples are Threema, Signal, WhatsApp and Telegram. The advantage of that design is that the provider can innovate faster, and has a centralized approach to security. But the disadvantage is that the provider can change or discontinue the service, and leak, sell or disclose in some other way all users' data, including who they are connected with.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="content-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Content padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="decentralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Decentralized network</h1><div class="overlay-content"><p>Decentralized network is often used to mean "the network based on decentralized blockchain". In its original meaning, decentralized network means that there is no central authority or any other point of centralization in the network, other than network protocols specification. The advantage of decentralized networks is that they are resilient to censorship and to the provider going out of business. The disadvantage is that they are often slower to innovate, and the security may be worse than with the centralized network.</p><p>The examples of decentralized networks are email, web, DNS, XMPP, Matrix, BitTorrent, etc. All these examples have a shared global application-level address space. Cryptocurrency blockchains not only have a shared address space, but also a shared state, so they are more centralized than email. Tor network also has a shared global address space, but also a central authority. SimpleX network does not have a shared application-level address space (it relies on the shared transport-level addresses - SMP relay hostnames or IP addresses), and it does not have any central authority or any shared state.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="defense-in-depth" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Defense in depth</h1><div class="overlay-content"><p>Originally, it is a military strategy that seeks to delay rather than prevent the advance of an attacker, buying time and causing additional casualties by yielding space.</p><p>In information security, defense in depth represents the use of multiple computer security techniques to help mitigate the risk of one component of the defense being compromised or circumvented. An example could be anti-virus software installed on individual workstations when there is already virus protection on the firewalls and servers within the same environment.</p><p>SimpleX network applies defense in depth approach to security by having multiple layers for the communication security and privacy:</p><ul>
+<li>double ratchet algorithm for <a href="#end-to-end-encryption">end-to-end encryption</a> with <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>,</li>
+<li>additional layer of end-to-end encryption for each messaging queue and another encryption layer of encryption from the server to the recipient inside TLS to prevent correlation by ciphertext,</li>
+<li>TLS with only strong ciphers allowed,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-server connection via server offline certificate verification,</li>
+<li>mitigation of replay attacks via signing over transport channel binding,</li>
+<li>multiple layers of <a href="#message-padding">message padding</a> to reduce efficiency of traffic analysis,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-client out-of-band channel when sending the invitation,</li>
+<li>rotation of delivery queues to reduce efficiency of traffic analysis,</li>
+<li>etc.</li>
+</ul><p><a href="https://en.wikipedia.org/wiki/Defence_in_depth">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="end-to-end-encryption" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">End-to-end encryption</h1><div class="overlay-content"><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><p>End-to-end encryption requires agreeing cryptographic keys between the sender and the recipient in a way that no eavesdroppers can access the agreed keys. See <a href="#key-agreement-protocol">key agreement protocol</a>. This key exchange can be compromised via <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>, particularly if key exchange happens via the same communication provider and no out-of-band channel is used to verify key exchange.</p><p><a href="https://en.wikipedia.org/wiki/End-to-end_encryption">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-compromise-security" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-compromise security</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="man-in-the-middle-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Man-in-the-middle attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="message-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Message padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="key-agreement-protocol" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key agreement protocol</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="tooltip-end-to-end-encryption" class="glossary-tooltip"><div class="tooltip-content"><h4 class="tooltip-title">End-to-end encryption</h4><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><button class="read-more-btn open-overlay-btn" data-show-overlay="end-to-end-encryption">Read more</button></div></div><div id="key-exchange" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key exchange</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="mitm-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">MITM attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="non-repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Non-repudiation</h1><div class="overlay-content">Non-repudiation</div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="onion-routing" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Onion routing</h1><div class="overlay-content"><p>A technique for anonymous communication over a computer network that uses multiple layers of message encryption, analogous to the layers of an onion. The encrypted data is transmitted through a series of network nodes called "onion routers," each of which "peels" away a single layer, revealing the data's next destination. The sender remains anonymous because each intermediary knows only the location of the immediately preceding and following nodes.</p><p>The most widely used onion network is <a href="https://en.wikipedia.org/wiki/Tor_(network)">Tor</a>.</p><p>Some elements of SimpleX network use similar ideas in their design - different addresses for the same resource used by different parties, and additional encryption layers. Currently though, SimpleX messaging protocol does not protect sender network address, as the relay server is chosen by the recipient. The delivery relays chosen by sender that are planned for the future would make SimpleX design closer to onion routing.</p><p><a href="https://en.wikipedia.org/wiki/Onion_routing">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="overlay-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Overlay network</h1><div class="overlay-content"><p>Nodes in the overlay network can be thought of as being connected by virtual or logical links, each of which corresponds to a path, perhaps through many physical links, in the underlying network. Tor, for example, is an overlay network on top of IP network, which in its turn is also an overlay network over some underlying physical network.</p><p>SimpleX Clients also form a network using SMP relays and IP or some other overlay network (e.g., Tor), to communicate with each other. SMP relays, on another hand, do not form a network.</p><p><a href="https://en.wikipedia.org/wiki/Overlay_network">Wikipedia</a></p><h1>Non-repudiation</h1><p>The property of the cryptographic or communication system that allows the recipient of the message to prove to any third party that the sender identified by some cryptographic key sent the message. It is the opposite to <a href="#repudiation">repudiation</a>. While in some context non-repudiation may be desirable (e.g., for contractually binding messages), in the context of private communications it may be undesirable.</p><p><a href="https://en.wikipedia.org/wiki/Non-repudiation">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Repudiation</h1><div class="overlay-content"><p>The property of the cryptographic or communication system that allows the sender of the message to plausibly deny having sent the message, because while the recipient can verify that the message was sent by the sender, they cannot prove it to any third party - the recipient has a technical ability to forge the same encrypted message. This is an important quality of private communications, as it allows to have the conversation that can later be denied, similarly to having a private face-to-face conversation.</p><p>See also <a href="#non-repudiation">non-repudiation</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="pairwise-pseudonymous-identifier" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Pairwise pseudonymous identifier</h1><div class="overlay-content"><p>Generalizing <a href="https://csrc.nist.gov/glossary/term/pairwise_pseudonymous_identifier">the definition</a> from NIST Digital Identity Guidelines, it is an opaque unguessable identifier generated by a service used to access a resource by only one party.</p><p>In the context of SimpleX network, these are the identifiers generated by SMP relays to access anonymous messaging queues, with a separate identifier (and access credential) for each accessing party: recipient, sender and and optional notifications subscriber. The same approach is used by XFTP relays to access file chunks, with separate identifiers (and access credentials) for sender and each recipient.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Peer-to-peer</h1><div class="overlay-content"><p>Peer-to-peer (P2P) is the network architecture when participants have equal rights and communicate directly via a general purpose transport or overlay network. Unlike client-server architecture, all peers in a P2P network both provide and consume the resources. In the context of messaging, P2P architecture usually means that the messages are sent between peers, without user accounts or messages being stored on any servers. Examples are Tox, Briar, Cwtch and many others.</p><p>The advantage is that the participants do not depend on any servers. There are <a href="./SIMPLEX.md#comparison-with-p2p9-messaging-protocols">multiple downsides</a> to that architecture, such as no asynchronous message delivery, the need for network-wide peer addresses, possibility of network-wide attacks, that are usually mitigated only by using a centralized authority. These disadvantages are avoided with <a href="#proxied-peer-to-peer">proxied P2P</a> architecture.</p><p><a href="https://en.wikipedia.org/wiki/Peer-to-peer">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="proxied-peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Proxied peer-to-peer</h1><div class="overlay-content"><p>Network topology of the communication system when peers communicate via proxies that do not form the network themselves. Such design is used in Pond, that has a fixed home server for each user, and in SimpleX, that uses multiple relays providing temporary connections.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="perfect-forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Perfect forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-cryptography" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum cryptography</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-hybrid-crypto" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum hybrid crypto</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="recovery-from-compromise" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Recovery from compromise</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="user-identity" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">User identity</h1><div class="overlay-content"><p>In a communication system it refers to anything that uniquely identifies the users to the network. Depending on the communication network, it can be a phone number, email address, username, public key or a random opaque identifier. Most messaging networks rely on some form of user identity. SimpleX appears to be the only messaging network that does not rely on any kind of user identity - see <a href="https://en.wikipedia.org/wiki/Comparison_of_instant_messaging_protocols">this comparison</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div></body></html>
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+                            SimpleX Whitepaper
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                        <a href="https://github.com/simplex-chat/simplex-chat/blob/stable/docs/protocol/simplex-chat.md"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            SimpleX Chat-Protokoll
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                        <a href="https://github.com/simplex-chat/simplex-chat/blob/stable/docs/CLI.md"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            Terminal-Kommandozeilen-Schnittstelle
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                        <a href="https://github.com/simplex-chat/simplex-chat/tree/stable/bots"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            SimpleX bots API
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                    </div>
+                </div>
+            </div>
+
+            <article class="mt-10 lg:mt-0">
+                <div class="h-[40px] flex flex-col gap-2 justify-center">
+                    <div class="flex gap-2 justify-center">
+                        <a href="https://simplex.chat/contact#/?v=1&smp=smp%3A%2F%2FPQUV2eL0t7OStZOoAsPEV2QYWt4-xilbakvGUGOItUo%3D%40smp6.simplex.im%2FK1rslx-m5bpXVIdMZg9NLUZ_8JBm8xTt%23%2F%3Fv%3D1%26dh%3DMCowBQYDK2VuAyEALDeVe-sG8mRY22LsXlPgiwTNs9dbiLrNuA7f3ZMAJ2w%253D%26srv%3Dbylepyau3ty4czmn77q4fglvperknl4bi2eb2fdy2bh4jxtf32kf73yd.onion">
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+                            </svg>
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+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 512 512" fill="none" xmlns="http://www.w3.org/2000/svg">
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+                            </svg>
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+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 512 512" fill="none" xmlns="http://www.w3.org/2000/svg">
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+    </div>
+</section>
+
+
+        <script src="/js/swiper-bundle.min.js"></script>
+        <script src="/js/script.js"></script>
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+++ b/de/invitation/index.html
@@ -133,6 +133,8 @@
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+++ b/de/messaging/index.html
@@ -133,6 +133,8 @@
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+            
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@@ -133,6 +133,8 @@
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+++ b/de/why/index.html
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index ee5d3d84d3..ab6f41388e 100644
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+++ b/docs/android.html
@@ -124,6 +124,8 @@
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+++ b/docs/business.html
@@ -124,6 +124,8 @@
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index 020d6c1a72..c61bd0defe 100644
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+++ b/docs/cli.html
@@ -124,6 +124,8 @@
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+++ b/docs/code_of_conduct.html
@@ -124,6 +124,8 @@
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+++ b/docs/contributing.html
@@ -124,6 +124,8 @@
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@@ -124,6 +124,8 @@
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@@ -124,6 +124,8 @@
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@@ -124,6 +124,8 @@
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@@ -124,6 +124,8 @@
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+++ b/docs/guide/chat-profiles.html
@@ -124,6 +124,8 @@
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-        <div class="nav-link flag-container">
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--- /dev/null
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+<!DOCTYPE html>
+<html lang="en"
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+        
+            dir="ltr"
+        
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+        
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+        <meta http-equiv="X-UA-Compatible" content="IE=edge">
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        <title>SimpleX File Transfer</title>
+        <meta name="description" content="Send files securely with end-to-end encryption"/>
+        <meta name="Content-Type" content="text/html;charset=utf-8"/>
+        
+        <meta http-equiv="onion-location" content="http://isdb4l77sjqoy2qq7ipum6x3at6hyn3jmxfx4zdhc72ufbmuq4ilwkqd.onion/" />
+        <meta property="og:url" content="https://simplex.chat/" />
+        
+        <meta property="og:type" content="website"/>
+        <meta property="og:title" content="SimpleX File Transfer"/>
+        <meta property="og:description" content="Send files securely with end-to-end encryption"/>
+        <meta property="og:image" content="https://simplex.chat/img/share_simplex.jpg"/>
+        <meta name="twitter:card" content="summary"/>
+        <link rel="icon" type="image/png" sizes="96x96" href="/img/favicon.ico"/>
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+        <link rel="stylesheet" href="/css/swiper-bundle.min.css">
+        <link rel="stylesheet" href="/css/blog.css">
+        <link href="/css/tailwind.css" rel="stylesheet"/>
+        <link rel="stylesheet" href="/css/style.css">
+        <link rel="stylesheet" href="/css/design3-nav.css">
+        <script async defer src="https://buttons.github.io/buttons.js"></script>
+        <script src="/js/flag-anchor.js"></script>
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+    </head>
+    <body class="bg-[#F3FAFF] dark:bg-[#000832]">
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+    
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+    
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+
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+<header id="navbar">
+    <a href="/" class="logo logo-light ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-light.png" alt="logo"></a>
+    <a href="/" class="logo logo-dark ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-dark.png" alt="logo"></a>
+
+    <nav id="menu">
+        <ul>
+            <li class="nav-link ">
+                <a href="/">
+                    <span class="nav-link-text">Home</span>
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+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/directory/">
+                    <span class="nav-link-text">Directory</span>
+                </a>
+            </li>
+
+            
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">Guide</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
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+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    
+                        <li><a href="/docs/guide/readme.html" class="">Quick start</a></li>
+                    
+                        <li><a href="/docs/guide/send-messages.html" class="">Sending messages</a></li>
+                    
+                        <li><a href="/docs/guide/secret-groups.html" class="">Secret groups</a></li>
+                    
+                        <li><a href="/docs/guide/chat-profiles.html" class="">Chat profiles</a></li>
+                    
+                        <li><a href="/docs/guide/managing-data.html" class="">Managing data</a></li>
+                    
+                        <li><a href="/docs/guide/audio-video-calls.html" class="">Audio & video Calls</a></li>
+                    
+                        <li><a href="/docs/guide/privacy-security.html" class="">Privacy & security</a></li>
+                    
+                        <li><a href="/docs/guide/app-settings.html" class="">App settings</a></li>
+                    
+                        <li><a href="/docs/guide/making-connections.html" class="">Making connections</a></li>
+                    
+                </ul>
+            </li>
+
+            <hr>
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+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">Reference</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
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+
+                <ul class="sub-menu">
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md"
+                        target="_blank">Whitepaper
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/privacy">Privacy Policy</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/simplex-messaging.md"
+                        target="_blank">SMP protocol
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/protocol/simplex-chat.html">Chat protocol</a></li>
+                    <li><a href="/docs/glossary.html">Glossary</a></li>
+
+                    <hr>
+
+                    
+                        <li><a href="/docs/simplex.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX network</a></li>
+                    
+                        <li><a href="/docs/business.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX for business</a></li>
+                    
+                        <li><a href="/docs/directory.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX Directory</a></li>
+                    
+                        <li><a href="/docs/android.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Accessing Android files</a></li>
+                    
+                        <li><a href="/docs/server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Host SMP Server</a></li>
+                    
+                        <li><a href="/docs/xftp-server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Host XFTP Server</a></li>
+                    
+                        <li><a href="/docs/webrtc.html" class=" lg:px-[20px] inline-block whitespace-nowrap">WebRTC servers</a></li>
+                    
+                        <li><a href="/downloads/" class=" lg:px-[20px] inline-block whitespace-nowrap">Downloads</a></li>
+                    
+                        <li><a href="/reproduce/" class=" lg:px-[20px] inline-block whitespace-nowrap">Verify & reproduce builds</a></li>
+                    
+                        <li><a href="/transparency/" class=" lg:px-[20px] inline-block whitespace-nowrap">Transparency</a></li>
+                    
+                        <li><a href="/security/" class=" lg:px-[20px] inline-block whitespace-nowrap">Security</a></li>
+                    
+                        <li><a href="/faq/" class=" lg:px-[20px] inline-block whitespace-nowrap">FAQ</a></li>
+                    
+
+                    <hr>
+
+                    <li><a href="/docs/translations.html"
+                    >Translate SimpleX Chat
+                    </a></li>
+                    <li><a href="/docs/android.html"
+                    >Accessing Android files
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/blob/stable/apps/simplex-bot-advanced/Main.hs"
+                        target="_blank">Chat bot example
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/tree/stable/packages/simplex-chat-client/typescript"
+                        target="_blank">TypeScript SDK
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/cli.html">Terminal CLI</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq"
+                        target="_blank">SimpleXMQ
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/blog">
+                    <span class="nav-link-text">Blog</span>
+                </a>
+            </li>
+        </ul>
+    </nav>
+
+    <div class="right-links">
+        
+            <a class="box-btn token md:hidden" href="/donate">
+                Donate
+            </a>
+        
+        <button href="#" class="theme-switch-btn">
+            <svg class="sun" width="469" height="469" viewBox="0 0 469 469" fill="none" xmlns="http://www.w3.org/2000/svg">
+            <path d="M225.768 1.44594C220.301 3.84594 214.701 10.6459 213.768 15.9793C213.234 18.3793 213.101 31.7126 213.368 45.7126L213.768 71.1793L217.634 76.1126C226.701 88.1126 242.968 87.5793 252.301 75.0459C254.968 71.5793 255.101 69.5793 255.101 42.2459C255.101 14.9126 254.968 12.9126 252.301 9.44594C250.834 7.44594 248.034 4.51261 246.168 3.17928C241.768 -0.154057 231.101 -1.08739 225.768 1.44594Z"/>
+            <path d="M72.9687 65.3128C63.7687 71.5794 60.1687 81.4461 63.7687 91.1794C65.502 95.4461 98.702 129.446 104.035 132.379C106.035 133.446 110.569 134.246 114.035 134.246C126.035 134.246 134.435 125.846 134.435 113.846C134.435 110.379 133.635 105.846 132.569 103.846C129.635 98.5128 95.6353 65.3128 91.3687 63.5794C85.102 61.3128 77.902 61.9794 72.9687 65.3128Z"/>
+            <path d="M377.102 63.7128C373.102 65.3128 338.969 98.7794 336.302 103.846C335.236 105.846 334.436 110.379 334.436 113.846C334.436 125.846 342.836 134.246 354.836 134.246C358.302 134.246 362.836 133.446 364.836 132.379C370.169 129.446 403.369 95.4461 405.102 91.1794C408.702 81.4461 405.102 71.5794 395.902 65.3128C391.102 61.9794 383.102 61.3128 377.102 63.7128Z"/>
+            <path d="M211.635 108.246C185.635 113.179 163.502 125.046 144.302 144.112C117.902 170.512 104.968 203.579 106.835 240.246C109.768 297.712 149.102 344.912 205.902 359.179C218.568 362.379 250.302 362.379 262.968 359.179C310.435 347.312 345.768 312.646 358.702 265.046C362.435 251.446 362.835 219.446 359.368 205.712C347.368 158.112 312.302 122.379 265.235 110.112C251.768 106.512 225.502 105.579 211.635 108.246Z"/>
+            <path d="M12.4349 214.779C-0.498477 220.379 -4.09848 237.579 5.23486 248.246C11.2349 255.046 15.6349 255.846 45.3682 255.313C74.0349 254.913 75.1015 254.646 81.6349 245.713C85.9015 239.979 85.5015 228.113 80.8349 221.979C74.4349 213.713 71.2349 212.913 42.1682 212.913C23.7682 213.046 15.2349 213.579 12.4349 214.779Z"/>
+            <path d="M396.035 215.179C393.635 216.379 390.035 219.445 388.035 221.979C383.368 228.112 382.968 239.979 387.235 245.712C394.035 254.779 394.301 254.912 426.435 254.912C458.568 254.912 458.835 254.779 465.635 245.712C469.501 240.512 469.501 227.979 465.635 222.779C458.968 213.845 458.301 213.579 428.035 213.179C404.435 212.912 399.768 213.179 396.035 215.179Z"/>
+            <path d="M103.101 336.779C96.7013 340.779 65.368 373.179 63.768 377.313C57.368 394.513 74.168 411.313 91.368 404.913C95.6347 403.179 129.635 369.979 132.568 364.646C135.368 359.446 134.968 349.046 131.768 343.846C126.168 334.646 112.035 331.179 103.101 336.779Z"/>
+            <path d="M344.035 336.912C341.635 338.379 338.569 341.445 337.102 343.845C333.902 349.045 333.502 359.445 336.302 364.645C339.235 369.979 373.235 403.179 377.502 404.912C387.235 408.512 397.102 404.912 403.369 395.712C406.702 390.779 407.369 383.579 405.102 377.312C403.369 373.045 370.169 339.045 364.835 336.112C359.635 333.312 349.235 333.712 344.035 336.912Z"/>
+            <path d="M225.368 385.712C222.968 387.046 219.368 390.112 217.368 392.646L213.768 397.312V426.379C213.768 458.246 213.901 458.779 222.968 465.446C228.168 469.312 240.701 469.312 245.901 465.446C254.834 458.779 255.101 457.979 255.501 428.246C256.034 397.579 255.234 394.379 246.834 387.979C241.101 383.579 231.634 382.512 225.368 385.712Z"/>
+            </svg>
+
+            <svg class="moon" width="469" height="469" viewBox="5 5 20 23" xmlns="http://www.w3.org/2000/svg">
+                <path d="M10.895 7.574c0 7.55 5.179 13.67 11.567 13.67 1.588 0 3.101-0.38 4.479-1.063-1.695 4.46-5.996 7.636-11.051 7.636-6.533 0-11.83-5.297-11.83-11.83 0-4.82 2.888-8.959 7.023-10.803-0.116 0.778-0.188 1.573-0.188 2.39z"></path>
+            </svg>
+        </button>
+
+        
+
+        <button id="cross-btn" class="nav-toggle-btn">
+            <svg id="cross" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+            <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z" />
+        </svg>
+        </button>
+    </div>
+</header>
+<div id="mobile-header">
+    <a href="/" class="logo flex dark:hidden ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-light.svg" alt="" srcset=""></a>
+    <a href="/" class="logo hidden dark:flex ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-dark.svg" alt="" srcset=""></a>
+
+    <button id="hamburger" class="nav-toggle-btn">
+        <svg viewBox="0 0 100 80" width="36" height="36">
+            <rect width="100" height="15"></rect>
+            <rect y="30" width="100" height="15"></rect>
+            <rect y="60" width="100" height="15"></rect>
+        </svg>
+    </button>
+</div>
+
+
+<script>
+// switch theme
+const sunIcon = document.querySelector('.sun');
+const moonIcon = document.querySelector('.moon');
+
+const userTheme = localStorage.getItem('theme');
+const systemTheme = window.matchMedia('(prefers-color-scheme: dark)').matches;
+const prismThemeLink = document.getElementById('prism-theme')
+
+function iconToggle () {
+    sunIcon.classList.toggle('hidden');
+    moonIcon.classList.toggle('hidden');
+}
+
+function themeCheck() {
+    if (userTheme === 'dark' || (!userTheme && systemTheme)) {
+        document.documentElement.classList.add('dark');
+        moonIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+    }
+    else{
+        sunIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+    }
+}
+themeCheck();
+
+function themeSwitch () {
+    if (document.documentElement.classList.contains('dark')) {
+        document.documentElement.classList.remove('dark');
+        localStorage.setItem('theme', 'light');
+        if(prismThemeLink){
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+        iconToggle();
+    } else {
+        document.documentElement.classList.add('dark');
+        localStorage.setItem('theme', 'dark');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+        iconToggle();
+    }
+}
+
+const nav = document.querySelector('header#navbar');
+
+window.addEventListener('click',(e)=>{
+    if(e.target.closest('.nav-link')){
+        if(e.target.closest('.nav-link').classList.contains('active')){
+            e.target.closest('.nav-link').classList.remove('active');
+        }
+        else{
+            document.querySelectorAll('.nav-link').forEach(el => el.classList.remove('active'))
+            e.target.closest('.nav-link').classList.add('active');
+        }
+    }
+    else if(e.target.closest('.nav-toggle-btn')){
+        if(nav.classList.contains('open')){
+            nav.classList.remove('open');
+            document.getElementById('mobile-header').classList.remove('nav-open');
+            document.documentElement.classList.remove('lock-scroll');
+        }
+        else{
+            document.documentElement.classList.add('lock-scroll');
+            document.getElementById('mobile-header').classList.add('nav-open');
+            nav.classList.add('open');
+        }
+    }
+    else if(e.target.closest('.theme-switch-btn')){
+        themeSwitch();
+    }
+});
+</script>
+
+        <html><head><link rel="stylesheet" href="/file-assets/index.css">
+<style>
+  /* Reset website .card styles that conflict with xftp bundle */
+  #app .card { cursor: default; }
+  #app .card,
+  #app .card > div { transition: unset; height: auto; }
+  #app .card > div > * { opacity: unset; max-height: unset; transform: unset; transition: unset; }
+
+  /* Align xftp bundle with website design */
+  #app { font-family: inherit; color: #3F484B; max-width: 600px; width: 100%; margin: 0 auto; padding: 0; }
+  #app .card { background: transparent; box-shadow: none; padding: 0; border-radius: 0; }
+  #app .card > h1 { display: none; }
+  .dark #app h1 { color: #fff; }
+  #app .drop-zone { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; }
+  #app .drop-zone.drag-over { border-color: #0053D0; background: #DBEEFF; }
+  #app .btn { background: #0053D0; border-radius: 34px; padding: 12px 32px; font-size: .9rem; font-weight: 600; }
+  #app .btn:hover { background: #1661D1; }
+  #app .btn-secondary { background: #6b7280; border-radius: 34px; }
+  #app .hint { color: #6b7280; }
+  #app .link-row input { border-radius: 8px; border-color: #c5d3de; }
+  #app .security-note { background: #ffffff; border-radius: 12px; color: #3F484B; }
+  #app .security-note a { color: #0197FF; }
+  #app .success { color: #0053D0; }
+
+  .dark #app { color: #e5e7eb; }
+  .dark #app .card { background: transparent; box-shadow: none; }
+  .dark #app .drop-zone { border-color: #374151; }
+  .dark #app .drop-zone.drag-over { border-color: #70F0F9; background: #1B325C; }
+  .dark #app .btn { background: #70F0F9; color: #000832; }
+  .dark #app .btn:hover { background: #66D9E2; }
+  .dark #app .link-row input { border-color: #374151; background: #071C46; color: #e5e7eb; }
+  .dark #app .security-note { background: #0B2A59; color: #d1d5db; }
+  .dark #app .security-note a { color: #70F0F9; }
+  .dark #app .success { color: #70F0F9; }
+
+  #app #upload-error { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; text-align: center; }
+  .dark #app #upload-error { border-color: #374151; }
+
+  #app .stage > .btn { margin-top: 20px; }
+  #app .security-note { margin-top: 20px; }
+  #app .drop-zone .btn { margin: 10px 0 16px; }
+
+  /* Protocol overlay: image fixed, text scrolls natively */
+  /* Push popup below navbar at all widths */
+  #xftp-protocol { padding-top: 70px; }
+  #xftp-protocol .overlay-card {
+    display: flex;
+    flex-direction: column;
+    position: relative;
+    overflow: hidden;
+  }
+  @media (min-width: 768px) {
+    #xftp-protocol .overlay-card { max-height: min(660px, 100%); }
+  }
+  #xftp-protocol .overlay-card > h1 {
+    flex-shrink: 0;
+    padding-bottom: 16px;
+    margin-bottom: 0;
+    z-index: 1;
+  }
+  @media (min-width: 1024px) and (max-height: 750px) {
+    #xftp-protocol .overlay-card > h1 {
+      font-size: 22px;
+    }
+  }
+  /* .flex is the full-width scroll container */
+  #xftp-protocol .overlay-card > .flex {
+    flex: 1;
+    min-height: 0;
+    overflow-y: auto;
+    scrollbar-width: thin;
+    scrollbar-color: #c5d3de transparent;
+  }
+  .dark #xftp-protocol .overlay-card > .flex {
+    scrollbar-color: #374151 transparent;
+  }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar { width: 6px; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-track { background: transparent; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #c5d3de; border-radius: 3px; }
+  .dark #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #374151; }
+  /* Desktop: text stays left, image fixed on right */
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card > .flex > div:first-child {
+      max-width: 50%;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child {
+      position: absolute;
+      right: 56px;
+      top: 0;
+      bottom: 0;
+      left: 55%;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      pointer-events: none;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child > div {
+      height: 100%;
+      padding: 40px 0;
+      box-sizing: border-box;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child img {
+      height: 100%;
+    }
+  }
+  #xftp-protocol .close-overlay-btn {
+    position: absolute;
+    top: 24px;
+    right: 24px;
+    cursor: pointer;
+    z-index: 3;
+    fill: #606C71;
+  }
+  .dark #xftp-protocol .close-overlay-btn { fill: #e5e7eb; }
+  /* Scroll fade: gradient over text area only, hidden at bottom */
+  #xftp-protocol .overlay-card::after {
+    content: '';
+    position: absolute;
+    bottom: 40px;
+    left: 24px;
+    right: 24px;
+    height: 48px;
+    background: linear-gradient(rgba(255,255,255,0), #fff);
+    pointer-events: none;
+    z-index: 2;
+    transition: opacity 0.2s;
+  }
+  .dark #xftp-protocol .overlay-card::after {
+    background: linear-gradient(rgba(7,28,70,0), #071C46);
+  }
+  @media (min-width: 640px) {
+    #xftp-protocol .overlay-card::after { bottom: 56px; left: 56px; right: 56px; }
+  }
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card::after { right: 55%; }
+  }
+  #xftp-protocol.scrolled-bottom .overlay-card::after { opacity: 0; }
+  #xftp-protocol .overlay-card.flex,
+  #xftp-protocol.flex .overlay-card { animation: overlaySlideIn 0.25s ease-out; }
+  @keyframes overlaySlideIn {
+    from { opacity: 0; transform: scale(0.95) translateY(10px); }
+    to { opacity: 1; transform: scale(1) translateY(0); }
+  }
+  #xftp-protocol.overlay-closing { animation: overlayFadeOut 0.2s ease-in forwards; }
+  #xftp-protocol.overlay-closing .overlay-card { animation: overlaySlideOut 0.2s ease-in forwards; }
+  @keyframes overlayFadeOut {
+    from { opacity: 1; }
+    to { opacity: 0; }
+  }
+  @keyframes overlaySlideOut {
+    from { opacity: 1; transform: scale(1) translateY(0); }
+    to { opacity: 0; transform: scale(0.95) translateY(10px); }
+  }
+
+  .file-proto-link {
+    font-size: 1.25rem;
+    font-weight: 600;
+    background: linear-gradient(90deg, #001aa7 0%, #0095e7 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+    text-decoration: none;
+  }
+  .dark .file-proto-link {
+    background: linear-gradient(90deg, #019bfe 0%, #64fdff 58%, #c8feff 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+  }
+
+</style>
+
+</head><body><section class="bg-secondary-bg-light dark:bg-primary-bg-dark py-10 mt-[66px] px-5">
+  <div class="container flex flex-col items-center mx-auto">
+    <noscript>
+      <p class="text-center text-grey-black dark:text-white py-10">
+        JavaScript is required for file transfer.
+      </p>
+    </noscript>
+    <h1 class="text-[38px] text-center font-bold text-active-blue mb-8">SimpleX File Transfer</h1>
+    <div id="app" data-xftp-app="" data-no-hashchange="" class="w-full">
+      <div class="card">
+        <div class="drop-zone">
+          <p>Drag &amp; drop a file here</p>
+          <p class="hint">or</p>
+          <span class="btn">Choose file</span>
+          <p class="hint">Max 100 MB - <a href="#join-simplex">SimpleX Chat app</a> supports files up to 1 GB</p>
+        </div>
+      </div>
+    </div>
+    <template id="dl-placeholder">
+      <div class="card">
+        <h1>SimpleX File Transfer</h1>
+        <div class="stage">
+          <p>File available</p>
+          <button class="btn">Download</button>
+          <div class="security-note">
+            <p>This file is encrypted - data routers never see file contents, name or size.</p>
+            <p>The encryption key is in the link’s hash fragment - it is never sent to any server.</p>
+            <p>For better security, use <a href="https://simplex.chat/download">SimpleX Chat</a> app.</p>
+          </div>
+        </div>
+      </div>
+    </template>
+    <script>if(location.hash.length>50){var a=document.getElementById("app"),t=document.getElementById("dl-placeholder");if(a&&t)a.replaceChildren(t.content.cloneNode(true))}</script>
+    <script type="module" src="/file-assets/index.js"></script>
+
+    <p class="text-base text-center text-grey-black dark:text-white mt-10 max-w-[600px]">Send files securely with <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span> — no accounts, no tracking.</p>
+    <a href="javascript:void(0)" data-show-overlay="xftp-protocol" class="open-overlay-btn file-proto-link mt-3 block text-center">Learn more about XFTP protocol</a>
+  </div>
+</section>
+
+<section class="bg-primary-bg-light dark:bg-secondary-bg-dark py-[90px] px-5">
+  <div class="container flex flex-col items-center mx-auto text-center">
+    <h2 class="text-[35px] leading-[45px] md:text-[45px] md:leading-[55px] text-grey-black dark:text-white font-bold mb-5">
+      Get SimpleX Chat — the most secure &amp; private messenger
+    </h2>
+    <p class="text-base text-grey-black dark:text-white mb-14 max-w-[600px]">
+      The file transfer you just used uses the same data routing protocol as SimpleX Chat. The app has end-to-end encrypted messaging, voice and video calls, groups, and sending files. No account. No phone. No email. No user profile IDs.
+    </p>
+    <div class="flex items-center justify-center gap-4 flex-wrap">
+      <a href="https://apps.apple.com/us/app/simplex-chat/id1605771084" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apple_store.svg"></a>
+      <a href="https://play.google.com/store/apps/details?id=chat.simplex.app" target="_blank"><img class="h-[40px] w-auto" src="/img/new/google_play.svg"></a>
+      <a href="/fdroid"><img class="h-[40px] w-auto" src="/img/new/f_droid.svg"></a>
+      <a href="https://testflight.apple.com/join/DWuT2LQu" target="_blank"><img class="h-[40px] w-auto" src="/img/new/testflight.png"></a>
+      <a href="https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-aarch64.apk" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apk_icon.png"></a>
+    </div>
+  </div>
+</section>
+
+
+  
+    
+    <div id="xftp-protocol" data-scroll-to="" class="overlay hidden fixed top-0 left-0 bottom-0 right-0 before:absolute before:w-full before:h-full bg-transparent before:bg-secondary-bg-light dark:before:bg-primary-bg-dark before:opacity-90 items-center justify-center p-3 md:p-10 z-[10000]">
+        <div class="overlay-card w-full md:w-fit md:max-w-[1276px] bg-white dark:bg-card-bg-dark opacity-100 h-full md:h-fit md:max-h-[660px] z-[10001] rounded-md shadow-[0px_3px_12px_rgba(0,0,0,0.2)] p-6 py-10 sm:p-14 overflow-auto scale-100">
+            <h1 class="text-3xl font-bold text-active-blue mb-6 ">XFTP protocol: the most secure file transfer</h1>
+            <div class="flex flex-col-reverse lg:flex-row gap-10 justify-between">
+                
+                    <div class="lg:max-w-[448px]">
+                        <div class="text-grey-black dark:text-white flex flex-col gap-6 text-base">
+                            <div>
+  <h3 class="font-bold text-lg mb-2">No account required</h3>
+  <p>Each file fragment uses a new random key. Data routers have no "users" or "files" - they transfer encrypted file fragments of fixed sizes.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Triple-encrypted in your browser</h3>
+  <p>File encryption key is present only in the URL hash fragment - your browser never sends it to a server. There are 3 encryption layers: TLS transport, per-recipient encryption (unique ephemeral key per transfer), and file <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span>.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Independent data routers</h3>
+  <p>When file is split to fragments, it is sent via network routers operated by independent parties. No operator can see the actual file size or name. Even if a router is compromised, it can only see encrypted fragments of fixed size. File fragments are cached by network routers for approximately 48 hours.</p>
+</div>
+<p class="mt-4">
+  <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/xftp.md" target="_blank" rel="noopener" class="text-active-blue hover:underline">
+    Read the XFTP protocol specification →
+  </a>
+</p>
+
+                        </div>
+                    </div>
+                
+
+                
+                    <div class="max-w-[448px]">
+                        <div class="flex items-center justify-center">
+                            <img class="w-full max-w-[448px] min-w-[300px] dark:hidden" src="/img/new/xftp-protocol.svg" alt="">
+                            <img class="w-full max-w-[448px] min-w-[300px] hidden dark:block" src="/img/new/xftp-protocol-dark.svg" alt="">
+                        </div>
+                    </div>
+                
+            </div>
+
+            <svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+                <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z"></path>
+            </svg>
+        </div>
+    </div>
+
+
+
+<script>
+  window.__XFTP_I18N__ = {
+    "title": "SimpleX File Transfer",
+    "dropZone": "Drag & drop a file here",
+    "dropZoneHint": "or",
+    "chooseFile": "Choose file",
+    "maxSizeHint": "Max 100 MB - <a href=\"#join-simplex\">SimpleX Chat app</a> supports files up to 1 GB",
+    "encrypting": "Encrypting…",
+    "uploading": "Uploading…",
+    "cancel": "Cancel",
+    "fileUploaded": "File uploaded",
+    "copy": "Copy",
+    "copied": "Copied!",
+    "share": "Share",
+    "expiryHint": "Files are typically available for 48 hours.",
+    "securityNote1": "Your file was encrypted in the browser - data routers never see file contents, name or size.",
+    "securityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "securityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "retry": "Retry",
+    "downloading": "Downloading…",
+    "decrypting": "Decrypting…",
+    "downloadComplete": "Download complete",
+    "download": "Download",
+    "fileTooLarge": "File too large (%size%). Maximum is 100 MB. The <a href=\"#join-simplex\">SimpleX app</a> supports files up to 1 GB.",
+    "fileEmpty": "File is empty.",
+    "invalidLink": "Invalid or corrupted link.",
+    "initError": "Failed to initialize: %error%",
+    "fileAvailable": "File available (~%size%)",
+    "dlSecurityNote1": "This file is encrypted - data routers never see file contents, name or size.",
+    "dlSecurityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "dlSecurityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "workersRequired": "Web Workers required — update your browser"
+  }
+</script>
+
+<script>
+  // Intercept close for #xftp-protocol to add fade-out animation
+  document.getElementById('xftp-protocol')?.addEventListener('click', function(e) {
+    if (e.target.closest('.close-overlay-btn') || (e.target.closest('.overlay') && !e.target.closest('.overlay-card'))) {
+      e.stopPropagation();
+      var el = document.getElementById('xftp-protocol');
+      el.classList.add('overlay-closing');
+      el.addEventListener('animationend', function handler() {
+        el.removeEventListener('animationend', handler);
+        el.classList.remove('flex', 'overlay-closing');
+        el.classList.add('hidden');
+        document.body.classList.remove('lock-scroll');
+        history.replaceState(null, null, ' ');
+      });
+    }
+  }, true);
+
+  // Hide scroll fade gradient when text bottom is visible (works with column-reverse)
+  var scrollArea = document.querySelector('#xftp-protocol .overlay-card > .flex');
+  if (scrollArea) {
+    var textCol = scrollArea.querySelector(':scope > div:first-child > div');
+    function checkScrollBottom() {
+      if (!textCol) return;
+      var scrollRect = scrollArea.getBoundingClientRect();
+      if (scrollRect.height === 0) return; // not laid out yet
+      var textBottom = textCol.getBoundingClientRect().bottom;
+      document.getElementById('xftp-protocol').classList.toggle('scrolled-bottom', textBottom <= scrollRect.bottom + 10);
+    }
+    scrollArea.addEventListener('scroll', checkScrollBottom);
+    new MutationObserver(function() {
+      if (!document.getElementById('xftp-protocol').classList.contains('hidden')) {
+        requestAnimationFrame(checkScrollBottom);
+      }
+    }).observe(document.getElementById('xftp-protocol'), { attributes: true, attributeFilter: ['class'] });
+  }
+</script>
+
+<div id="address-portability" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Address portability</h1><div class="overlay-content"><p>Similarly to <a href="https://en.wikipedia.org/wiki/Local_number_portability">phone number portability</a> (the ability of the customer to transfer the service to another provider without changing the number), the address portability means the ability of a communication service customer to change the service provider without changing the service address. Many <a href="#federated-network">federated networks</a> support SRV records to provide address portability, but allowing service users to set up their own domains for the addresses is not as commonly supported by the available server and client software as for email.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="federated-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Federated network</h1><div class="overlay-content"><p>Federated network is provided by several entities that agree upon the standards and operate the network collectively. This allows the users to choose their provider, that will hold their account, their messaging history and contacts, and communicate with other providers' servers on behalf of the user. The examples are email, XMPP, Matrix and Mastodon.</p><p>The advantage of that design is that there is no single organization that all users depend on, and the standards are more difficult to change, unless it benefits all users. There are several disadvantages: 1) the innovation is slower, 2) each user account still depends on a single organization, and in most cases can't move to another provider without changing their network address – there is no <a href="#address-portability">address portability</a>, 3) the security and privacy are inevitably worse than with the centralized networks.</p><p><a href="https://en.wikipedia.org/wiki/Federation_(information_technology)">Federation on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="anonymous-credentials" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Anonymous credentials</h1><div class="overlay-content"><p>The credential that allows proving something, e.g. the right to access some resource, without identifying the user. This credential can either be generated by a trusted party or by the user themselves and provided together with the request to create the resource. The first approach creates some centralized dependency in most cases. The second approach does not require any trust - this is used in SimpleX network to authorize access to the messaging queues.</p><p><a href="https://en.wikipedia.org/wiki/Digital_credential">Digital credential on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="blockchain" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Blockchain</h1><div class="overlay-content"><p>In a wide sense, blockchain means a sequence of blocks of data, where each block contains a cryptographic hash of the previous block, thus providing integrity to the whole chain. Blockchains are used in many communication and information storage systems to provide integrity and immutability of the data. For example, BluRay disks use blockchain. SimpleX messaging queues also use blockchain - each message includes the hash of the previous message, to ensure the integrity – if any message is modified it will be detected by the recipient when the next message is received. Blockchains are a subset of <a href="#merkle-directed-acyclic-graph">Merkle directed acyclic graphs</a>.</p><p>In a more narrow sense, particularly in media, blockchain is used to refer specifically to distributed ledger, where each record also includes the hash of the previous record, but the blocks have to be agreed by the participating peers using some <a href="https://en.wikipedia.org/wiki/Consensus_(computer_science)">consensus protocol</a>.</p><p><a href="https://en.wikipedia.org/wiki/Blockchain">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="merkle-directed-acyclic-graph" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Merkle directed acyclic graph</h1><div class="overlay-content"><p>Also known as Merkle DAG, a data structure based on a general graph structure where node contains the cryptographic hashes of the previous nodes that point to it. Merkle trees are a subset of Merkle DAGs - in this case each leaf contains a cryptographic hash of the parent.</p><p>This structure by design allows to verify the integrity of the whole structure by computing its hashes and comparing with the hashes included in the nodes, in the same way as with <a href="#blockchain">blockchain</a>.</p><p>The motivation to use DAG in distributed environments instead of a simpler linear blockchain is to allow concurrent additions, when there is no requirement for a single order of added items. Merkle DAG is used, for example, in <a href="https://en.wikipedia.org/wiki/InterPlanetary_File_System">IPFS</a> and will be used in decentralized SimpleX groups.</p><p><a href="https://en.wikipedia.org/wiki/Merkle_tree">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="break-in-recovery" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Break-in recovery</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="double-ratchet-algorithm" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Double ratchet algorithm</h1><div class="overlay-content"><p>It is used by two parties to exchange <a href="#end-to-end-encryption">end-to-end encrypted</a> messages. The parties will use some <a href="#key-agreement-protocol">key agreement protocol</a> to agree on the initial shared secret key.</p><p>Double Ratchet algorithm provides <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>. It is <a href="https://signal.org/docs/specifications/doubleratchet">designed by Signal</a>, and used in SimpleX Chat and many other secure messengers. Most experts consider it the state-of-the-art encryption protocol in message encryption.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="centralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Centralized network</h1><div class="overlay-content"><p>Centralized networks are provided or controlled by a single entity. The examples are Threema, Signal, WhatsApp and Telegram. The advantage of that design is that the provider can innovate faster, and has a centralized approach to security. But the disadvantage is that the provider can change or discontinue the service, and leak, sell or disclose in some other way all users' data, including who they are connected with.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="content-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Content padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="decentralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Decentralized network</h1><div class="overlay-content"><p>Decentralized network is often used to mean "the network based on decentralized blockchain". In its original meaning, decentralized network means that there is no central authority or any other point of centralization in the network, other than network protocols specification. The advantage of decentralized networks is that they are resilient to censorship and to the provider going out of business. The disadvantage is that they are often slower to innovate, and the security may be worse than with the centralized network.</p><p>The examples of decentralized networks are email, web, DNS, XMPP, Matrix, BitTorrent, etc. All these examples have a shared global application-level address space. Cryptocurrency blockchains not only have a shared address space, but also a shared state, so they are more centralized than email. Tor network also has a shared global address space, but also a central authority. SimpleX network does not have a shared application-level address space (it relies on the shared transport-level addresses - SMP relay hostnames or IP addresses), and it does not have any central authority or any shared state.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="defense-in-depth" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Defense in depth</h1><div class="overlay-content"><p>Originally, it is a military strategy that seeks to delay rather than prevent the advance of an attacker, buying time and causing additional casualties by yielding space.</p><p>In information security, defense in depth represents the use of multiple computer security techniques to help mitigate the risk of one component of the defense being compromised or circumvented. An example could be anti-virus software installed on individual workstations when there is already virus protection on the firewalls and servers within the same environment.</p><p>SimpleX network applies defense in depth approach to security by having multiple layers for the communication security and privacy:</p><ul>
+<li>double ratchet algorithm for <a href="#end-to-end-encryption">end-to-end encryption</a> with <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>,</li>
+<li>additional layer of end-to-end encryption for each messaging queue and another encryption layer of encryption from the server to the recipient inside TLS to prevent correlation by ciphertext,</li>
+<li>TLS with only strong ciphers allowed,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-server connection via server offline certificate verification,</li>
+<li>mitigation of replay attacks via signing over transport channel binding,</li>
+<li>multiple layers of <a href="#message-padding">message padding</a> to reduce efficiency of traffic analysis,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-client out-of-band channel when sending the invitation,</li>
+<li>rotation of delivery queues to reduce efficiency of traffic analysis,</li>
+<li>etc.</li>
+</ul><p><a href="https://en.wikipedia.org/wiki/Defence_in_depth">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="end-to-end-encryption" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">End-to-end encryption</h1><div class="overlay-content"><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><p>End-to-end encryption requires agreeing cryptographic keys between the sender and the recipient in a way that no eavesdroppers can access the agreed keys. See <a href="#key-agreement-protocol">key agreement protocol</a>. This key exchange can be compromised via <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>, particularly if key exchange happens via the same communication provider and no out-of-band channel is used to verify key exchange.</p><p><a href="https://en.wikipedia.org/wiki/End-to-end_encryption">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-compromise-security" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-compromise security</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="man-in-the-middle-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Man-in-the-middle attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="message-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Message padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="key-agreement-protocol" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key agreement protocol</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="tooltip-end-to-end-encryption" class="glossary-tooltip"><div class="tooltip-content"><h4 class="tooltip-title">End-to-end encryption</h4><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><button class="read-more-btn open-overlay-btn" data-show-overlay="end-to-end-encryption">Read more</button></div></div><div id="key-exchange" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key exchange</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="mitm-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">MITM attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="non-repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Non-repudiation</h1><div class="overlay-content">Non-repudiation</div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="onion-routing" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Onion routing</h1><div class="overlay-content"><p>A technique for anonymous communication over a computer network that uses multiple layers of message encryption, analogous to the layers of an onion. The encrypted data is transmitted through a series of network nodes called "onion routers," each of which "peels" away a single layer, revealing the data's next destination. The sender remains anonymous because each intermediary knows only the location of the immediately preceding and following nodes.</p><p>The most widely used onion network is <a href="https://en.wikipedia.org/wiki/Tor_(network)">Tor</a>.</p><p>Some elements of SimpleX network use similar ideas in their design - different addresses for the same resource used by different parties, and additional encryption layers. Currently though, SimpleX messaging protocol does not protect sender network address, as the relay server is chosen by the recipient. The delivery relays chosen by sender that are planned for the future would make SimpleX design closer to onion routing.</p><p><a href="https://en.wikipedia.org/wiki/Onion_routing">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="overlay-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Overlay network</h1><div class="overlay-content"><p>Nodes in the overlay network can be thought of as being connected by virtual or logical links, each of which corresponds to a path, perhaps through many physical links, in the underlying network. Tor, for example, is an overlay network on top of IP network, which in its turn is also an overlay network over some underlying physical network.</p><p>SimpleX Clients also form a network using SMP relays and IP or some other overlay network (e.g., Tor), to communicate with each other. SMP relays, on another hand, do not form a network.</p><p><a href="https://en.wikipedia.org/wiki/Overlay_network">Wikipedia</a></p><h1>Non-repudiation</h1><p>The property of the cryptographic or communication system that allows the recipient of the message to prove to any third party that the sender identified by some cryptographic key sent the message. It is the opposite to <a href="#repudiation">repudiation</a>. While in some context non-repudiation may be desirable (e.g., for contractually binding messages), in the context of private communications it may be undesirable.</p><p><a href="https://en.wikipedia.org/wiki/Non-repudiation">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Repudiation</h1><div class="overlay-content"><p>The property of the cryptographic or communication system that allows the sender of the message to plausibly deny having sent the message, because while the recipient can verify that the message was sent by the sender, they cannot prove it to any third party - the recipient has a technical ability to forge the same encrypted message. This is an important quality of private communications, as it allows to have the conversation that can later be denied, similarly to having a private face-to-face conversation.</p><p>See also <a href="#non-repudiation">non-repudiation</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="pairwise-pseudonymous-identifier" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Pairwise pseudonymous identifier</h1><div class="overlay-content"><p>Generalizing <a href="https://csrc.nist.gov/glossary/term/pairwise_pseudonymous_identifier">the definition</a> from NIST Digital Identity Guidelines, it is an opaque unguessable identifier generated by a service used to access a resource by only one party.</p><p>In the context of SimpleX network, these are the identifiers generated by SMP relays to access anonymous messaging queues, with a separate identifier (and access credential) for each accessing party: recipient, sender and and optional notifications subscriber. The same approach is used by XFTP relays to access file chunks, with separate identifiers (and access credentials) for sender and each recipient.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Peer-to-peer</h1><div class="overlay-content"><p>Peer-to-peer (P2P) is the network architecture when participants have equal rights and communicate directly via a general purpose transport or overlay network. Unlike client-server architecture, all peers in a P2P network both provide and consume the resources. In the context of messaging, P2P architecture usually means that the messages are sent between peers, without user accounts or messages being stored on any servers. Examples are Tox, Briar, Cwtch and many others.</p><p>The advantage is that the participants do not depend on any servers. There are <a href="./SIMPLEX.md#comparison-with-p2p9-messaging-protocols">multiple downsides</a> to that architecture, such as no asynchronous message delivery, the need for network-wide peer addresses, possibility of network-wide attacks, that are usually mitigated only by using a centralized authority. These disadvantages are avoided with <a href="#proxied-peer-to-peer">proxied P2P</a> architecture.</p><p><a href="https://en.wikipedia.org/wiki/Peer-to-peer">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="proxied-peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Proxied peer-to-peer</h1><div class="overlay-content"><p>Network topology of the communication system when peers communicate via proxies that do not form the network themselves. Such design is used in Pond, that has a fixed home server for each user, and in SimpleX, that uses multiple relays providing temporary connections.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="perfect-forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Perfect forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-cryptography" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum cryptography</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-hybrid-crypto" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum hybrid crypto</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="recovery-from-compromise" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Recovery from compromise</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="user-identity" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">User identity</h1><div class="overlay-content"><p>In a communication system it refers to anything that uniquely identifies the users to the network. Depending on the communication network, it can be a phone number, email address, username, public key or a random opaque identifier. Most messaging networks rely on some form of user identity. SimpleX appears to be the only messaging network that does not rely on any kind of user identity - see <a href="https://en.wikipedia.org/wiki/Comparison_of_instant_messaging_protocols">this comparison</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div></body></html>
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+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            Privacy Policy
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+                            Join team
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+                            target="_blank"
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+                            Donate
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                    </div>
+                    <div class="flex flex-col items-center lg:items-start">
+                        <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            SimpleX Whitepaper
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                        <a href="https://github.com/simplex-chat/simplex-chat/blob/stable/docs/protocol/simplex-chat.md"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            SimpleX Chat protocol
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                        <a href="https://github.com/simplex-chat/simplex-chat/blob/stable/docs/CLI.md"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            Terminal CLI
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                        <a href="https://github.com/simplex-chat/simplex-chat/tree/stable/bots"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            SimpleX bots API
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                    </div>
+                </div>
+            </div>
+
+            <article class="mt-10 lg:mt-0">
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+                    <div class="flex gap-2 justify-center">
+                        <a href="https://simplex.chat/contact#/?v=1&smp=smp%3A%2F%2FPQUV2eL0t7OStZOoAsPEV2QYWt4-xilbakvGUGOItUo%3D%40smp6.simplex.im%2FK1rslx-m5bpXVIdMZg9NLUZ_8JBm8xTt%23%2F%3Fv%3D1%26dh%3DMCowBQYDK2VuAyEALDeVe-sG8mRY22LsXlPgiwTNs9dbiLrNuA7f3ZMAJ2w%253D%26srv%3Dbylepyau3ty4czmn77q4fglvperknl4bi2eb2fdy2bh4jxtf32kf73yd.onion">
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+    </div>
+</section>
+
+
+        <script src="/js/swiper-bundle.min.js"></script>
+        <script src="/js/script.js"></script>
+    </body>
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diff --git a/en/index.html b/en/index.html
index e24d20f726..e6c85aaf11 100644
--- a/en/index.html
+++ b/en/index.html
@@ -153,6 +153,8 @@
                 </a>
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diff --git a/en/invitation/index.html b/en/invitation/index.html
index ca6ae2fa81..6de0034f2f 100644
--- a/en/invitation/index.html
+++ b/en/invitation/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/en/messaging/index.html b/en/messaging/index.html
index 45cd7ec7ff..8dea1c648b 100644
--- a/en/messaging/index.html
+++ b/en/messaging/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
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diff --git a/en/old/index.html b/en/old/index.html
index 2de6116799..693c75c312 100644
--- a/en/old/index.html
+++ b/en/old/index.html
@@ -133,6 +133,8 @@
                 </a>
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+            
+
             <hr>
 
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diff --git a/en/why/index.html b/en/why/index.html
index 6dd1221669..b0d3ed68ba 100644
--- a/en/why/index.html
+++ b/en/why/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
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diff --git a/es/contact/index.html b/es/contact/index.html
index 5030875c0a..db1246bd1b 100644
--- a/es/contact/index.html
+++ b/es/contact/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
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             <hr>
 
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diff --git a/es/fdroid/index.html b/es/fdroid/index.html
index 35281c0314..9480dcae5c 100644
--- a/es/fdroid/index.html
+++ b/es/fdroid/index.html
@@ -133,6 +133,8 @@
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diff --git a/es/file/index.html b/es/file/index.html
new file mode 100644
index 0000000000..892e5ce0b7
--- /dev/null
+++ b/es/file/index.html
@@ -0,0 +1,888 @@
+<!DOCTYPE html>
+<html lang="es"
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+    
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+        
+    >
+    <head>
+        <meta charset="UTF-8">
+        <meta http-equiv="X-UA-Compatible" content="IE=edge">
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        <title>SimpleX File Transfer</title>
+        <meta name="description" content="Send files securely with end-to-end encryption"/>
+        <meta name="Content-Type" content="text/html;charset=utf-8"/>
+        
+        <meta http-equiv="onion-location" content="http://isdb4l77sjqoy2qq7ipum6x3at6hyn3jmxfx4zdhc72ufbmuq4ilwkqd.onion/" />
+        <meta property="og:url" content="https://simplex.chat/" />
+        
+        <meta property="og:type" content="website"/>
+        <meta property="og:title" content="SimpleX File Transfer"/>
+        <meta property="og:description" content="Send files securely with end-to-end encryption"/>
+        <meta property="og:image" content="https://simplex.chat/img/share_simplex.jpg"/>
+        <meta name="twitter:card" content="summary"/>
+        <link rel="icon" type="image/png" sizes="96x96" href="/img/favicon.ico"/>
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+        <link rel="stylesheet" href="/css/swiper-bundle.min.css">
+        <link rel="stylesheet" href="/css/blog.css">
+        <link href="/css/tailwind.css" rel="stylesheet"/>
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+        <link rel="stylesheet" href="/css/design3-nav.css">
+        <script async defer src="https://buttons.github.io/buttons.js"></script>
+        <script src="/js/flag-anchor.js"></script>
+        
+    </head>
+    <body class="bg-[#F3FAFF] dark:bg-[#000832]">
+        
+
+
+    
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+    
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+    
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+    
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+    
+        
+    
+
+    
+
+    
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+    
+
+    
+
+    
+
+    
+
+    
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+    
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+    
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+    
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+    
+
+    
+
+    
+
+    
+
+
+<header id="navbar">
+    <a href="/es" class="logo logo-light ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-light.png" alt="logo"></a>
+    <a href="/es" class="logo logo-dark ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-dark.png" alt="logo"></a>
+
+    <nav id="menu">
+        <ul>
+            <li class="nav-link ">
+                <a href="/es">
+                    <span class="nav-link-text">Inicio</span>
+                </a>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/directory/">
+                    <span class="nav-link-text">Directorio</span>
+                </a>
+            </li>
+
+            
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">Guía</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    
+                        <li><a href="/docs/guide/readme.html" class="">Inicio rápido</a></li>
+                    
+                        <li><a href="/docs/guide/send-messages.html" class="">Envío de mensajes</a></li>
+                    
+                        <li><a href="/docs/guide/secret-groups.html" class="">Grupos secretos</a></li>
+                    
+                        <li><a href="/docs/guide/chat-profiles.html" class="">Perfiles de chat</a></li>
+                    
+                        <li><a href="/docs/guide/managing-data.html" class="">Gestión de datos</a></li>
+                    
+                        <li><a href="/docs/guide/audio-video-calls.html" class="">Llamadas y Videollamadas</a></li>
+                    
+                        <li><a href="/docs/guide/privacy-security.html" class="">Privacidad y seguridad</a></li>
+                    
+                        <li><a href="/docs/guide/app-settings.html" class="">Configuración de la aplicación</a></li>
+                    
+                        <li><a href="/docs/guide/making-connections.html" class="">Establecer conexiones</a></li>
+                    
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">Referencia</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md"
+                        target="_blank">Whitepaper
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/privacy">Política de Privacidad</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/simplex-messaging.md"
+                        target="_blank">Protocolo SMP
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/protocol/simplex-chat.html">Protocolo Chat</a></li>
+                    <li><a href="/docs/glossary.html">Glosario</a></li>
+
+                    <hr>
+
+                    
+                        <li><a href="/docs/simplex.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Red SimpleX</a></li>
+                    
+                        <li><a href="/docs/business.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX para empresas</a></li>
+                    
+                        <li><a href="/docs/directory.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Directorio SimpleX</a></li>
+                    
+                        <li><a href="/docs/android.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Acceso a archivos de Android</a></li>
+                    
+                        <li><a href="/docs/server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Servidor SMP anfitrión</a></li>
+                    
+                        <li><a href="/docs/xftp-server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Servidor XFTP anfitrión</a></li>
+                    
+                        <li><a href="/docs/webrtc.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Servidores WebRTC</a></li>
+                    
+                        <li><a href="/downloads/" class=" lg:px-[20px] inline-block whitespace-nowrap">Descargas</a></li>
+                    
+                        <li><a href="/reproduce/" class=" lg:px-[20px] inline-block whitespace-nowrap">Verify & reproduce builds</a></li>
+                    
+                        <li><a href="/transparency/" class=" lg:px-[20px] inline-block whitespace-nowrap">Transparencia</a></li>
+                    
+                        <li><a href="/security/" class=" lg:px-[20px] inline-block whitespace-nowrap">Seguridad</a></li>
+                    
+                        <li><a href="/faq/" class=" lg:px-[20px] inline-block whitespace-nowrap">FAQ</a></li>
+                    
+
+                    <hr>
+
+                    <li><a href="/docs/translations.html"
+                    >Traducir SimpleX Chat
+                    </a></li>
+                    <li><a href="/docs/android.html"
+                    >Acceso a archivos de Android
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/blob/stable/apps/simplex-bot-advanced/Main.hs"
+                        target="_blank">Ejemplo de bot de Chat
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/tree/stable/packages/simplex-chat-client/typescript"
+                        target="_blank">TypeScript SDK
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/cli.html">Terminal CLI</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq"
+                        target="_blank">SimpleXMQ
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/blog">
+                    <span class="nav-link-text">Blog</span>
+                </a>
+            </li>
+        </ul>
+    </nav>
+
+    <div class="right-links">
+        
+            <a class="box-btn token md:hidden" href="/donate">
+                Donación
+            </a>
+        
+        <button href="#" class="theme-switch-btn">
+            <svg class="sun" width="469" height="469" viewBox="0 0 469 469" fill="none" xmlns="http://www.w3.org/2000/svg">
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+            </svg>
+
+            <svg class="moon" width="469" height="469" viewBox="5 5 20 23" xmlns="http://www.w3.org/2000/svg">
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+            </svg>
+        </button>
+
+        
+
+        <button id="cross-btn" class="nav-toggle-btn">
+            <svg id="cross" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+            <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z" />
+        </svg>
+        </button>
+    </div>
+</header>
+<div id="mobile-header">
+    <a href="/es" class="logo flex dark:hidden ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-light.svg" alt="" srcset=""></a>
+    <a href="/es" class="logo hidden dark:flex ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-dark.svg" alt="" srcset=""></a>
+
+    <button id="hamburger" class="nav-toggle-btn">
+        <svg viewBox="0 0 100 80" width="36" height="36">
+            <rect width="100" height="15"></rect>
+            <rect y="30" width="100" height="15"></rect>
+            <rect y="60" width="100" height="15"></rect>
+        </svg>
+    </button>
+</div>
+
+
+<script>
+// switch theme
+const sunIcon = document.querySelector('.sun');
+const moonIcon = document.querySelector('.moon');
+
+const userTheme = localStorage.getItem('theme');
+const systemTheme = window.matchMedia('(prefers-color-scheme: dark)').matches;
+const prismThemeLink = document.getElementById('prism-theme')
+
+function iconToggle () {
+    sunIcon.classList.toggle('hidden');
+    moonIcon.classList.toggle('hidden');
+}
+
+function themeCheck() {
+    if (userTheme === 'dark' || (!userTheme && systemTheme)) {
+        document.documentElement.classList.add('dark');
+        moonIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+    }
+    else{
+        sunIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+    }
+}
+themeCheck();
+
+function themeSwitch () {
+    if (document.documentElement.classList.contains('dark')) {
+        document.documentElement.classList.remove('dark');
+        localStorage.setItem('theme', 'light');
+        if(prismThemeLink){
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+        iconToggle();
+    } else {
+        document.documentElement.classList.add('dark');
+        localStorage.setItem('theme', 'dark');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+        iconToggle();
+    }
+}
+
+const nav = document.querySelector('header#navbar');
+
+window.addEventListener('click',(e)=>{
+    if(e.target.closest('.nav-link')){
+        if(e.target.closest('.nav-link').classList.contains('active')){
+            e.target.closest('.nav-link').classList.remove('active');
+        }
+        else{
+            document.querySelectorAll('.nav-link').forEach(el => el.classList.remove('active'))
+            e.target.closest('.nav-link').classList.add('active');
+        }
+    }
+    else if(e.target.closest('.nav-toggle-btn')){
+        if(nav.classList.contains('open')){
+            nav.classList.remove('open');
+            document.getElementById('mobile-header').classList.remove('nav-open');
+            document.documentElement.classList.remove('lock-scroll');
+        }
+        else{
+            document.documentElement.classList.add('lock-scroll');
+            document.getElementById('mobile-header').classList.add('nav-open');
+            nav.classList.add('open');
+        }
+    }
+    else if(e.target.closest('.theme-switch-btn')){
+        themeSwitch();
+    }
+});
+</script>
+
+        <html><head><link rel="stylesheet" href="/file-assets/index.css">
+<style>
+  /* Reset website .card styles that conflict with xftp bundle */
+  #app .card { cursor: default; }
+  #app .card,
+  #app .card > div { transition: unset; height: auto; }
+  #app .card > div > * { opacity: unset; max-height: unset; transform: unset; transition: unset; }
+
+  /* Align xftp bundle with website design */
+  #app { font-family: inherit; color: #3F484B; max-width: 600px; width: 100%; margin: 0 auto; padding: 0; }
+  #app .card { background: transparent; box-shadow: none; padding: 0; border-radius: 0; }
+  #app .card > h1 { display: none; }
+  .dark #app h1 { color: #fff; }
+  #app .drop-zone { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; }
+  #app .drop-zone.drag-over { border-color: #0053D0; background: #DBEEFF; }
+  #app .btn { background: #0053D0; border-radius: 34px; padding: 12px 32px; font-size: .9rem; font-weight: 600; }
+  #app .btn:hover { background: #1661D1; }
+  #app .btn-secondary { background: #6b7280; border-radius: 34px; }
+  #app .hint { color: #6b7280; }
+  #app .link-row input { border-radius: 8px; border-color: #c5d3de; }
+  #app .security-note { background: #ffffff; border-radius: 12px; color: #3F484B; }
+  #app .security-note a { color: #0197FF; }
+  #app .success { color: #0053D0; }
+
+  .dark #app { color: #e5e7eb; }
+  .dark #app .card { background: transparent; box-shadow: none; }
+  .dark #app .drop-zone { border-color: #374151; }
+  .dark #app .drop-zone.drag-over { border-color: #70F0F9; background: #1B325C; }
+  .dark #app .btn { background: #70F0F9; color: #000832; }
+  .dark #app .btn:hover { background: #66D9E2; }
+  .dark #app .link-row input { border-color: #374151; background: #071C46; color: #e5e7eb; }
+  .dark #app .security-note { background: #0B2A59; color: #d1d5db; }
+  .dark #app .security-note a { color: #70F0F9; }
+  .dark #app .success { color: #70F0F9; }
+
+  #app #upload-error { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; text-align: center; }
+  .dark #app #upload-error { border-color: #374151; }
+
+  #app .stage > .btn { margin-top: 20px; }
+  #app .security-note { margin-top: 20px; }
+  #app .drop-zone .btn { margin: 10px 0 16px; }
+
+  /* Protocol overlay: image fixed, text scrolls natively */
+  /* Push popup below navbar at all widths */
+  #xftp-protocol { padding-top: 70px; }
+  #xftp-protocol .overlay-card {
+    display: flex;
+    flex-direction: column;
+    position: relative;
+    overflow: hidden;
+  }
+  @media (min-width: 768px) {
+    #xftp-protocol .overlay-card { max-height: min(660px, 100%); }
+  }
+  #xftp-protocol .overlay-card > h1 {
+    flex-shrink: 0;
+    padding-bottom: 16px;
+    margin-bottom: 0;
+    z-index: 1;
+  }
+  @media (min-width: 1024px) and (max-height: 750px) {
+    #xftp-protocol .overlay-card > h1 {
+      font-size: 22px;
+    }
+  }
+  /* .flex is the full-width scroll container */
+  #xftp-protocol .overlay-card > .flex {
+    flex: 1;
+    min-height: 0;
+    overflow-y: auto;
+    scrollbar-width: thin;
+    scrollbar-color: #c5d3de transparent;
+  }
+  .dark #xftp-protocol .overlay-card > .flex {
+    scrollbar-color: #374151 transparent;
+  }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar { width: 6px; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-track { background: transparent; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #c5d3de; border-radius: 3px; }
+  .dark #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #374151; }
+  /* Desktop: text stays left, image fixed on right */
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card > .flex > div:first-child {
+      max-width: 50%;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child {
+      position: absolute;
+      right: 56px;
+      top: 0;
+      bottom: 0;
+      left: 55%;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      pointer-events: none;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child > div {
+      height: 100%;
+      padding: 40px 0;
+      box-sizing: border-box;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child img {
+      height: 100%;
+    }
+  }
+  #xftp-protocol .close-overlay-btn {
+    position: absolute;
+    top: 24px;
+    right: 24px;
+    cursor: pointer;
+    z-index: 3;
+    fill: #606C71;
+  }
+  .dark #xftp-protocol .close-overlay-btn { fill: #e5e7eb; }
+  /* Scroll fade: gradient over text area only, hidden at bottom */
+  #xftp-protocol .overlay-card::after {
+    content: '';
+    position: absolute;
+    bottom: 40px;
+    left: 24px;
+    right: 24px;
+    height: 48px;
+    background: linear-gradient(rgba(255,255,255,0), #fff);
+    pointer-events: none;
+    z-index: 2;
+    transition: opacity 0.2s;
+  }
+  .dark #xftp-protocol .overlay-card::after {
+    background: linear-gradient(rgba(7,28,70,0), #071C46);
+  }
+  @media (min-width: 640px) {
+    #xftp-protocol .overlay-card::after { bottom: 56px; left: 56px; right: 56px; }
+  }
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card::after { right: 55%; }
+  }
+  #xftp-protocol.scrolled-bottom .overlay-card::after { opacity: 0; }
+  #xftp-protocol .overlay-card.flex,
+  #xftp-protocol.flex .overlay-card { animation: overlaySlideIn 0.25s ease-out; }
+  @keyframes overlaySlideIn {
+    from { opacity: 0; transform: scale(0.95) translateY(10px); }
+    to { opacity: 1; transform: scale(1) translateY(0); }
+  }
+  #xftp-protocol.overlay-closing { animation: overlayFadeOut 0.2s ease-in forwards; }
+  #xftp-protocol.overlay-closing .overlay-card { animation: overlaySlideOut 0.2s ease-in forwards; }
+  @keyframes overlayFadeOut {
+    from { opacity: 1; }
+    to { opacity: 0; }
+  }
+  @keyframes overlaySlideOut {
+    from { opacity: 1; transform: scale(1) translateY(0); }
+    to { opacity: 0; transform: scale(0.95) translateY(10px); }
+  }
+
+  .file-proto-link {
+    font-size: 1.25rem;
+    font-weight: 600;
+    background: linear-gradient(90deg, #001aa7 0%, #0095e7 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+    text-decoration: none;
+  }
+  .dark .file-proto-link {
+    background: linear-gradient(90deg, #019bfe 0%, #64fdff 58%, #c8feff 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+  }
+
+</style>
+
+</head><body><section class="bg-secondary-bg-light dark:bg-primary-bg-dark py-10 mt-[66px] px-5">
+  <div class="container flex flex-col items-center mx-auto">
+    <noscript>
+      <p class="text-center text-grey-black dark:text-white py-10">
+        JavaScript is required for file transfer.
+      </p>
+    </noscript>
+    <h1 class="text-[38px] text-center font-bold text-active-blue mb-8">SimpleX File Transfer</h1>
+    <div id="app" data-xftp-app="" data-no-hashchange="" class="w-full">
+      <div class="card">
+        <div class="drop-zone">
+          <p>Drag &amp; drop a file here</p>
+          <p class="hint">or</p>
+          <span class="btn">Choose file</span>
+          <p class="hint">Max 100 MB - <a href="#join-simplex">SimpleX Chat app</a> supports files up to 1 GB</p>
+        </div>
+      </div>
+    </div>
+    <template id="dl-placeholder">
+      <div class="card">
+        <h1>SimpleX File Transfer</h1>
+        <div class="stage">
+          <p>File available</p>
+          <button class="btn">Download</button>
+          <div class="security-note">
+            <p>This file is encrypted - data routers never see file contents, name or size.</p>
+            <p>The encryption key is in the link’s hash fragment - it is never sent to any server.</p>
+            <p>For better security, use <a href="https://simplex.chat/download">SimpleX Chat</a> app.</p>
+          </div>
+        </div>
+      </div>
+    </template>
+    <script>if(location.hash.length>50){var a=document.getElementById("app"),t=document.getElementById("dl-placeholder");if(a&&t)a.replaceChildren(t.content.cloneNode(true))}</script>
+    <script type="module" src="/file-assets/index.js"></script>
+
+    <p class="text-base text-center text-grey-black dark:text-white mt-10 max-w-[600px]">Send files securely with <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span> — no accounts, no tracking.</p>
+    <a href="javascript:void(0)" data-show-overlay="xftp-protocol" class="open-overlay-btn file-proto-link mt-3 block text-center">Learn more about XFTP protocol</a>
+  </div>
+</section>
+
+<section class="bg-primary-bg-light dark:bg-secondary-bg-dark py-[90px] px-5">
+  <div class="container flex flex-col items-center mx-auto text-center">
+    <h2 class="text-[35px] leading-[45px] md:text-[45px] md:leading-[55px] text-grey-black dark:text-white font-bold mb-5">
+      Get SimpleX Chat — the most secure &amp; private messenger
+    </h2>
+    <p class="text-base text-grey-black dark:text-white mb-14 max-w-[600px]">
+      The file transfer you just used uses the same data routing protocol as SimpleX Chat. The app has end-to-end encrypted messaging, voice and video calls, groups, and sending files. No account. No phone. No email. No user profile IDs.
+    </p>
+    <div class="flex items-center justify-center gap-4 flex-wrap">
+      <a href="https://apps.apple.com/us/app/simplex-chat/id1605771084" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apple_store.svg"></a>
+      <a href="https://play.google.com/store/apps/details?id=chat.simplex.app" target="_blank"><img class="h-[40px] w-auto" src="/img/new/google_play.svg"></a>
+      <a href="/es/fdroid"><img class="h-[40px] w-auto" src="/img/new/f_droid.svg"></a>
+      <a href="https://testflight.apple.com/join/DWuT2LQu" target="_blank"><img class="h-[40px] w-auto" src="/img/new/testflight.png"></a>
+      <a href="https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-aarch64.apk" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apk_icon.png"></a>
+    </div>
+  </div>
+</section>
+
+
+  
+    
+    <div id="xftp-protocol" data-scroll-to="" class="overlay hidden fixed top-0 left-0 bottom-0 right-0 before:absolute before:w-full before:h-full bg-transparent before:bg-secondary-bg-light dark:before:bg-primary-bg-dark before:opacity-90 items-center justify-center p-3 md:p-10 z-[10000]">
+        <div class="overlay-card w-full md:w-fit md:max-w-[1276px] bg-white dark:bg-card-bg-dark opacity-100 h-full md:h-fit md:max-h-[660px] z-[10001] rounded-md shadow-[0px_3px_12px_rgba(0,0,0,0.2)] p-6 py-10 sm:p-14 overflow-auto scale-100">
+            <h1 class="text-3xl font-bold text-active-blue mb-6 ">XFTP protocol: the most secure file transfer</h1>
+            <div class="flex flex-col-reverse lg:flex-row gap-10 justify-between">
+                
+                    <div class="lg:max-w-[448px]">
+                        <div class="text-grey-black dark:text-white flex flex-col gap-6 text-base">
+                            <div>
+  <h3 class="font-bold text-lg mb-2">No account required</h3>
+  <p>Each file fragment uses a new random key. Data routers have no "users" or "files" - they transfer encrypted file fragments of fixed sizes.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Triple-encrypted in your browser</h3>
+  <p>File encryption key is present only in the URL hash fragment - your browser never sends it to a server. There are 3 encryption layers: TLS transport, per-recipient encryption (unique ephemeral key per transfer), and file <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span>.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Independent data routers</h3>
+  <p>When file is split to fragments, it is sent via network routers operated by independent parties. No operator can see the actual file size or name. Even if a router is compromised, it can only see encrypted fragments of fixed size. File fragments are cached by network routers for approximately 48 hours.</p>
+</div>
+<p class="mt-4">
+  <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/xftp.md" target="_blank" rel="noopener" class="text-active-blue hover:underline">
+    Read the XFTP protocol specification →
+  </a>
+</p>
+
+                        </div>
+                    </div>
+                
+
+                
+                    <div class="max-w-[448px]">
+                        <div class="flex items-center justify-center">
+                            <img class="w-full max-w-[448px] min-w-[300px] dark:hidden" src="/img/new/xftp-protocol.svg" alt="">
+                            <img class="w-full max-w-[448px] min-w-[300px] hidden dark:block" src="/img/new/xftp-protocol-dark.svg" alt="">
+                        </div>
+                    </div>
+                
+            </div>
+
+            <svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+                <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z"></path>
+            </svg>
+        </div>
+    </div>
+
+
+
+<script>
+  window.__XFTP_I18N__ = {
+    "title": "SimpleX File Transfer",
+    "dropZone": "Drag & drop a file here",
+    "dropZoneHint": "or",
+    "chooseFile": "Choose file",
+    "maxSizeHint": "Max 100 MB - <a href=\"#join-simplex\">SimpleX Chat app</a> supports files up to 1 GB",
+    "encrypting": "Encrypting…",
+    "uploading": "Uploading…",
+    "cancel": "Cancel",
+    "fileUploaded": "File uploaded",
+    "copy": "Copy",
+    "copied": "Copied!",
+    "share": "Share",
+    "expiryHint": "Files are typically available for 48 hours.",
+    "securityNote1": "Your file was encrypted in the browser - data routers never see file contents, name or size.",
+    "securityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "securityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "retry": "Retry",
+    "downloading": "Downloading…",
+    "decrypting": "Decrypting…",
+    "downloadComplete": "Download complete",
+    "download": "Download",
+    "fileTooLarge": "File too large (%size%). Maximum is 100 MB. The <a href=\"#join-simplex\">SimpleX app</a> supports files up to 1 GB.",
+    "fileEmpty": "File is empty.",
+    "invalidLink": "Invalid or corrupted link.",
+    "initError": "Failed to initialize: %error%",
+    "fileAvailable": "File available (~%size%)",
+    "dlSecurityNote1": "This file is encrypted - data routers never see file contents, name or size.",
+    "dlSecurityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "dlSecurityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "workersRequired": "Web Workers required — update your browser"
+  }
+</script>
+
+<script>
+  // Intercept close for #xftp-protocol to add fade-out animation
+  document.getElementById('xftp-protocol')?.addEventListener('click', function(e) {
+    if (e.target.closest('.close-overlay-btn') || (e.target.closest('.overlay') && !e.target.closest('.overlay-card'))) {
+      e.stopPropagation();
+      var el = document.getElementById('xftp-protocol');
+      el.classList.add('overlay-closing');
+      el.addEventListener('animationend', function handler() {
+        el.removeEventListener('animationend', handler);
+        el.classList.remove('flex', 'overlay-closing');
+        el.classList.add('hidden');
+        document.body.classList.remove('lock-scroll');
+        history.replaceState(null, null, ' ');
+      });
+    }
+  }, true);
+
+  // Hide scroll fade gradient when text bottom is visible (works with column-reverse)
+  var scrollArea = document.querySelector('#xftp-protocol .overlay-card > .flex');
+  if (scrollArea) {
+    var textCol = scrollArea.querySelector(':scope > div:first-child > div');
+    function checkScrollBottom() {
+      if (!textCol) return;
+      var scrollRect = scrollArea.getBoundingClientRect();
+      if (scrollRect.height === 0) return; // not laid out yet
+      var textBottom = textCol.getBoundingClientRect().bottom;
+      document.getElementById('xftp-protocol').classList.toggle('scrolled-bottom', textBottom <= scrollRect.bottom + 10);
+    }
+    scrollArea.addEventListener('scroll', checkScrollBottom);
+    new MutationObserver(function() {
+      if (!document.getElementById('xftp-protocol').classList.contains('hidden')) {
+        requestAnimationFrame(checkScrollBottom);
+      }
+    }).observe(document.getElementById('xftp-protocol'), { attributes: true, attributeFilter: ['class'] });
+  }
+</script>
+
+<div id="address-portability" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Address portability</h1><div class="overlay-content"><p>Similarly to <a href="https://en.wikipedia.org/wiki/Local_number_portability">phone number portability</a> (the ability of the customer to transfer the service to another provider without changing the number), the address portability means the ability of a communication service customer to change the service provider without changing the service address. Many <a href="#federated-network">federated networks</a> support SRV records to provide address portability, but allowing service users to set up their own domains for the addresses is not as commonly supported by the available server and client software as for email.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="federated-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Federated network</h1><div class="overlay-content"><p>Federated network is provided by several entities that agree upon the standards and operate the network collectively. This allows the users to choose their provider, that will hold their account, their messaging history and contacts, and communicate with other providers' servers on behalf of the user. The examples are email, XMPP, Matrix and Mastodon.</p><p>The advantage of that design is that there is no single organization that all users depend on, and the standards are more difficult to change, unless it benefits all users. There are several disadvantages: 1) the innovation is slower, 2) each user account still depends on a single organization, and in most cases can't move to another provider without changing their network address – there is no <a href="#address-portability">address portability</a>, 3) the security and privacy are inevitably worse than with the centralized networks.</p><p><a href="https://en.wikipedia.org/wiki/Federation_(information_technology)">Federation on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="anonymous-credentials" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Anonymous credentials</h1><div class="overlay-content"><p>The credential that allows proving something, e.g. the right to access some resource, without identifying the user. This credential can either be generated by a trusted party or by the user themselves and provided together with the request to create the resource. The first approach creates some centralized dependency in most cases. The second approach does not require any trust - this is used in SimpleX network to authorize access to the messaging queues.</p><p><a href="https://en.wikipedia.org/wiki/Digital_credential">Digital credential on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="blockchain" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Blockchain</h1><div class="overlay-content"><p>In a wide sense, blockchain means a sequence of blocks of data, where each block contains a cryptographic hash of the previous block, thus providing integrity to the whole chain. Blockchains are used in many communication and information storage systems to provide integrity and immutability of the data. For example, BluRay disks use blockchain. SimpleX messaging queues also use blockchain - each message includes the hash of the previous message, to ensure the integrity – if any message is modified it will be detected by the recipient when the next message is received. Blockchains are a subset of <a href="#merkle-directed-acyclic-graph">Merkle directed acyclic graphs</a>.</p><p>In a more narrow sense, particularly in media, blockchain is used to refer specifically to distributed ledger, where each record also includes the hash of the previous record, but the blocks have to be agreed by the participating peers using some <a href="https://en.wikipedia.org/wiki/Consensus_(computer_science)">consensus protocol</a>.</p><p><a href="https://en.wikipedia.org/wiki/Blockchain">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="merkle-directed-acyclic-graph" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Merkle directed acyclic graph</h1><div class="overlay-content"><p>Also known as Merkle DAG, a data structure based on a general graph structure where node contains the cryptographic hashes of the previous nodes that point to it. Merkle trees are a subset of Merkle DAGs - in this case each leaf contains a cryptographic hash of the parent.</p><p>This structure by design allows to verify the integrity of the whole structure by computing its hashes and comparing with the hashes included in the nodes, in the same way as with <a href="#blockchain">blockchain</a>.</p><p>The motivation to use DAG in distributed environments instead of a simpler linear blockchain is to allow concurrent additions, when there is no requirement for a single order of added items. Merkle DAG is used, for example, in <a href="https://en.wikipedia.org/wiki/InterPlanetary_File_System">IPFS</a> and will be used in decentralized SimpleX groups.</p><p><a href="https://en.wikipedia.org/wiki/Merkle_tree">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="break-in-recovery" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Break-in recovery</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="double-ratchet-algorithm" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Double ratchet algorithm</h1><div class="overlay-content"><p>It is used by two parties to exchange <a href="#end-to-end-encryption">end-to-end encrypted</a> messages. The parties will use some <a href="#key-agreement-protocol">key agreement protocol</a> to agree on the initial shared secret key.</p><p>Double Ratchet algorithm provides <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>. It is <a href="https://signal.org/docs/specifications/doubleratchet">designed by Signal</a>, and used in SimpleX Chat and many other secure messengers. Most experts consider it the state-of-the-art encryption protocol in message encryption.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="centralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Centralized network</h1><div class="overlay-content"><p>Centralized networks are provided or controlled by a single entity. The examples are Threema, Signal, WhatsApp and Telegram. The advantage of that design is that the provider can innovate faster, and has a centralized approach to security. But the disadvantage is that the provider can change or discontinue the service, and leak, sell or disclose in some other way all users' data, including who they are connected with.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="content-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Content padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="decentralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Decentralized network</h1><div class="overlay-content"><p>Decentralized network is often used to mean "the network based on decentralized blockchain". In its original meaning, decentralized network means that there is no central authority or any other point of centralization in the network, other than network protocols specification. The advantage of decentralized networks is that they are resilient to censorship and to the provider going out of business. The disadvantage is that they are often slower to innovate, and the security may be worse than with the centralized network.</p><p>The examples of decentralized networks are email, web, DNS, XMPP, Matrix, BitTorrent, etc. All these examples have a shared global application-level address space. Cryptocurrency blockchains not only have a shared address space, but also a shared state, so they are more centralized than email. Tor network also has a shared global address space, but also a central authority. SimpleX network does not have a shared application-level address space (it relies on the shared transport-level addresses - SMP relay hostnames or IP addresses), and it does not have any central authority or any shared state.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="defense-in-depth" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Defense in depth</h1><div class="overlay-content"><p>Originally, it is a military strategy that seeks to delay rather than prevent the advance of an attacker, buying time and causing additional casualties by yielding space.</p><p>In information security, defense in depth represents the use of multiple computer security techniques to help mitigate the risk of one component of the defense being compromised or circumvented. An example could be anti-virus software installed on individual workstations when there is already virus protection on the firewalls and servers within the same environment.</p><p>SimpleX network applies defense in depth approach to security by having multiple layers for the communication security and privacy:</p><ul>
+<li>double ratchet algorithm for <a href="#end-to-end-encryption">end-to-end encryption</a> with <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>,</li>
+<li>additional layer of end-to-end encryption for each messaging queue and another encryption layer of encryption from the server to the recipient inside TLS to prevent correlation by ciphertext,</li>
+<li>TLS with only strong ciphers allowed,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-server connection via server offline certificate verification,</li>
+<li>mitigation of replay attacks via signing over transport channel binding,</li>
+<li>multiple layers of <a href="#message-padding">message padding</a> to reduce efficiency of traffic analysis,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-client out-of-band channel when sending the invitation,</li>
+<li>rotation of delivery queues to reduce efficiency of traffic analysis,</li>
+<li>etc.</li>
+</ul><p><a href="https://en.wikipedia.org/wiki/Defence_in_depth">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="end-to-end-encryption" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">End-to-end encryption</h1><div class="overlay-content"><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><p>End-to-end encryption requires agreeing cryptographic keys between the sender and the recipient in a way that no eavesdroppers can access the agreed keys. See <a href="#key-agreement-protocol">key agreement protocol</a>. This key exchange can be compromised via <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>, particularly if key exchange happens via the same communication provider and no out-of-band channel is used to verify key exchange.</p><p><a href="https://en.wikipedia.org/wiki/End-to-end_encryption">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-compromise-security" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-compromise security</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="man-in-the-middle-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Man-in-the-middle attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="message-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Message padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="key-agreement-protocol" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key agreement protocol</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="tooltip-end-to-end-encryption" class="glossary-tooltip"><div class="tooltip-content"><h4 class="tooltip-title">End-to-end encryption</h4><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><button class="read-more-btn open-overlay-btn" data-show-overlay="end-to-end-encryption">Read more</button></div></div><div id="key-exchange" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key exchange</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="mitm-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">MITM attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="non-repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Non-repudiation</h1><div class="overlay-content">Non-repudiation</div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="onion-routing" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Onion routing</h1><div class="overlay-content"><p>A technique for anonymous communication over a computer network that uses multiple layers of message encryption, analogous to the layers of an onion. The encrypted data is transmitted through a series of network nodes called "onion routers," each of which "peels" away a single layer, revealing the data's next destination. The sender remains anonymous because each intermediary knows only the location of the immediately preceding and following nodes.</p><p>The most widely used onion network is <a href="https://en.wikipedia.org/wiki/Tor_(network)">Tor</a>.</p><p>Some elements of SimpleX network use similar ideas in their design - different addresses for the same resource used by different parties, and additional encryption layers. Currently though, SimpleX messaging protocol does not protect sender network address, as the relay server is chosen by the recipient. The delivery relays chosen by sender that are planned for the future would make SimpleX design closer to onion routing.</p><p><a href="https://en.wikipedia.org/wiki/Onion_routing">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="overlay-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Overlay network</h1><div class="overlay-content"><p>Nodes in the overlay network can be thought of as being connected by virtual or logical links, each of which corresponds to a path, perhaps through many physical links, in the underlying network. Tor, for example, is an overlay network on top of IP network, which in its turn is also an overlay network over some underlying physical network.</p><p>SimpleX Clients also form a network using SMP relays and IP or some other overlay network (e.g., Tor), to communicate with each other. SMP relays, on another hand, do not form a network.</p><p><a href="https://en.wikipedia.org/wiki/Overlay_network">Wikipedia</a></p><h1>Non-repudiation</h1><p>The property of the cryptographic or communication system that allows the recipient of the message to prove to any third party that the sender identified by some cryptographic key sent the message. It is the opposite to <a href="#repudiation">repudiation</a>. While in some context non-repudiation may be desirable (e.g., for contractually binding messages), in the context of private communications it may be undesirable.</p><p><a href="https://en.wikipedia.org/wiki/Non-repudiation">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Repudiation</h1><div class="overlay-content"><p>The property of the cryptographic or communication system that allows the sender of the message to plausibly deny having sent the message, because while the recipient can verify that the message was sent by the sender, they cannot prove it to any third party - the recipient has a technical ability to forge the same encrypted message. This is an important quality of private communications, as it allows to have the conversation that can later be denied, similarly to having a private face-to-face conversation.</p><p>See also <a href="#non-repudiation">non-repudiation</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="pairwise-pseudonymous-identifier" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Pairwise pseudonymous identifier</h1><div class="overlay-content"><p>Generalizing <a href="https://csrc.nist.gov/glossary/term/pairwise_pseudonymous_identifier">the definition</a> from NIST Digital Identity Guidelines, it is an opaque unguessable identifier generated by a service used to access a resource by only one party.</p><p>In the context of SimpleX network, these are the identifiers generated by SMP relays to access anonymous messaging queues, with a separate identifier (and access credential) for each accessing party: recipient, sender and and optional notifications subscriber. The same approach is used by XFTP relays to access file chunks, with separate identifiers (and access credentials) for sender and each recipient.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Peer-to-peer</h1><div class="overlay-content"><p>Peer-to-peer (P2P) is the network architecture when participants have equal rights and communicate directly via a general purpose transport or overlay network. Unlike client-server architecture, all peers in a P2P network both provide and consume the resources. In the context of messaging, P2P architecture usually means that the messages are sent between peers, without user accounts or messages being stored on any servers. Examples are Tox, Briar, Cwtch and many others.</p><p>The advantage is that the participants do not depend on any servers. There are <a href="./SIMPLEX.md#comparison-with-p2p9-messaging-protocols">multiple downsides</a> to that architecture, such as no asynchronous message delivery, the need for network-wide peer addresses, possibility of network-wide attacks, that are usually mitigated only by using a centralized authority. These disadvantages are avoided with <a href="#proxied-peer-to-peer">proxied P2P</a> architecture.</p><p><a href="https://en.wikipedia.org/wiki/Peer-to-peer">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="proxied-peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Proxied peer-to-peer</h1><div class="overlay-content"><p>Network topology of the communication system when peers communicate via proxies that do not form the network themselves. Such design is used in Pond, that has a fixed home server for each user, and in SimpleX, that uses multiple relays providing temporary connections.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="perfect-forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Perfect forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-cryptography" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum cryptography</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-hybrid-crypto" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum hybrid crypto</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="recovery-from-compromise" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Recovery from compromise</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="user-identity" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">User identity</h1><div class="overlay-content"><p>In a communication system it refers to anything that uniquely identifies the users to the network. Depending on the communication network, it can be a phone number, email address, username, public key or a random opaque identifier. Most messaging networks rely on some form of user identity. SimpleX appears to be the only messaging network that does not rely on any kind of user identity - see <a href="https://en.wikipedia.org/wiki/Comparison_of_instant_messaging_protocols">this comparison</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div></body></html>
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+                            target="_blank"
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+                            Donación
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
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+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
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+                        <a href="https://github.com/simplex-chat/simplex-chat/blob/stable/docs/protocol/simplex-chat.md"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            Protocolo SimpleX Chat
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+                        </a>
+                        <a href="https://github.com/simplex-chat/simplex-chat/blob/stable/docs/CLI.md"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            Terminal CLI
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                        <a href="https://github.com/simplex-chat/simplex-chat/tree/stable/bots"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            SimpleX bots API
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
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+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M20.0408 0.926758C8.9951 0.926758 0.0407715 9.88109 0.0407715 20.9268C0.0407715 31.9724 8.9951 40.9268 20.0408 40.9268C31.0864 40.9268 40.0408 31.9724 40.0408 20.9268C40.0408 9.88109 31.0864 0.926758 20.0408 0.926758ZM9.6421 17.4916H14.1745V31.1098H9.6421V17.4916ZM14.4731 13.279C14.4437 11.9438 13.4889 10.9268 11.9383 10.9268C10.3878 10.9268 9.3741 11.9438 9.3741 13.279C9.3741 14.5866 10.3579 15.6328 11.8794 15.6328H11.9084C13.4889 15.6328 14.4731 14.5866 14.4731 13.279ZM25.3017 17.1718C28.2843 17.1718 30.5203 19.1187 30.5203 23.3015L30.5201 31.1098H25.9879V23.824C25.9879 21.994 25.3319 20.7453 23.6912 20.7453C22.439 20.7453 21.6932 21.5871 21.3656 22.4003C21.2458 22.6916 21.2164 23.0976 21.2164 23.5046V31.1101H16.6834C16.6834 31.1101 16.7431 18.7698 16.6834 17.492H21.2164V19.4208C21.8179 18.4936 22.8953 17.1718 25.3017 17.1718Z" />
+                            </svg>
+                        </a>
+                        <a href="https://simplex.chat/feed.rss" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 512 512" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M256 512C397.385 512 512 397.385 512 256C512 114.615 397.385 0 256 0C114.615 0 0 114.615 0 256C0 397.385 114.615 512 256 512ZM132.791 157.572C215.586 161.137 279.503 196.841 323.612 267.517C344.138 302.436 354.186 339.959 354.57 380.122H406.814C409.639 231.301 280.977 103.1 132.791 106.05V157.572ZM309.994 343.843C311.593 356.035 313.096 367.877 314.65 380.116H261.161C260.496 344.968 248.303 314.452 223.472 289.485C198.613 264.491 168.097 252.282 132.755 251.38V199.743C198.318 196.346 288.694 244.344 309.994 343.843ZM132.766 336.706C129.293 354.261 137.796 370.323 154.848 378.004L155.461 378.242C156.267 378.558 156.912 378.81 157.577 378.985C173.012 383.066 186.298 379.318 196.604 367.168C206.463 355.544 208.397 342.145 201.87 328.354C195.205 314.271 183.419 307.215 167.834 307.356C151.188 307.509 135.971 320.504 132.766 336.706Z" />
+                            </svg>
+                        </a>
+                    </div>
+                </div>
+            </article>
+        </div>
+        <a href="#" class="text-grey-black dark:text-white text-[16px] text-center lg:ltr:text-left lg:rtl:text-right font-medium leading-[28px] tracking-[0.01em] block mt-[60px]">© 2020-2025 SimpleX Chat | Proyecto de Código Abierto</a>
+    </div>
+</section>
+
+
+        <script src="/js/swiper-bundle.min.js"></script>
+        <script src="/js/script.js"></script>
+    </body>
+</html>
diff --git a/es/index.html b/es/index.html
index 5a4d80c025..582037cfb7 100644
--- a/es/index.html
+++ b/es/index.html
@@ -153,6 +153,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
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diff --git a/es/invitation/index.html b/es/invitation/index.html
index 87cb478aea..931dcb5dd2 100644
--- a/es/invitation/index.html
+++ b/es/invitation/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/es/messaging/index.html b/es/messaging/index.html
index 673dbef4e3..e44b151725 100644
--- a/es/messaging/index.html
+++ b/es/messaging/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/es/old/index.html b/es/old/index.html
index 8a95ae9c39..24c3000ed4 100644
--- a/es/old/index.html
+++ b/es/old/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/es/why/index.html b/es/why/index.html
index d26f03721e..c452cf02f5 100644
--- a/es/why/index.html
+++ b/es/why/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/fa/contact/index.html b/fa/contact/index.html
index 9fa5f70da8..941aed9938 100644
--- a/fa/contact/index.html
+++ b/fa/contact/index.html
@@ -129,6 +129,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/fa/fdroid/index.html b/fa/fdroid/index.html
index ac88d55e9f..0f34203fa1 100644
--- a/fa/fdroid/index.html
+++ b/fa/fdroid/index.html
@@ -129,6 +129,8 @@
                 </a>
             </li>
 
+            
+
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             <li class="nav-link">
diff --git a/fa/file/index.html b/fa/file/index.html
new file mode 100644
index 0000000000..5e359748ab
--- /dev/null
+++ b/fa/file/index.html
@@ -0,0 +1,884 @@
+<!DOCTYPE html>
+<html lang="fa"
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
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+        
+    
+        
+    
+        
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+    >
+    <head>
+        <meta charset="UTF-8">
+        <meta http-equiv="X-UA-Compatible" content="IE=edge">
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        <title>SimpleX File Transfer</title>
+        <meta name="description" content="Send files securely with end-to-end encryption"/>
+        <meta name="Content-Type" content="text/html;charset=utf-8"/>
+        
+        <meta http-equiv="onion-location" content="http://isdb4l77sjqoy2qq7ipum6x3at6hyn3jmxfx4zdhc72ufbmuq4ilwkqd.onion/" />
+        <meta property="og:url" content="https://simplex.chat/" />
+        
+        <meta property="og:type" content="website"/>
+        <meta property="og:title" content="SimpleX File Transfer"/>
+        <meta property="og:description" content="Send files securely with end-to-end encryption"/>
+        <meta property="og:image" content="https://simplex.chat/img/share_simplex.jpg"/>
+        <meta name="twitter:card" content="summary"/>
+        <link rel="icon" type="image/png" sizes="96x96" href="/img/favicon.ico"/>
+
+        <link rel="stylesheet" href="/css/swiper-bundle.min.css">
+        <link rel="stylesheet" href="/css/blog.css">
+        <link href="/css/tailwind.css" rel="stylesheet"/>
+        <link rel="stylesheet" href="/css/style.css">
+        <link rel="stylesheet" href="/css/design3-nav.css">
+        <script async defer src="https://buttons.github.io/buttons.js"></script>
+        <script src="/js/flag-anchor.js"></script>
+        
+    </head>
+    <body class="bg-[#F3FAFF] dark:bg-[#000832]">
+        
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+    
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+    
+
+    
+
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+
+    
+
+    
+
+    
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+    
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+    
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+    
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+    
+
+    
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+    
+
+
+<header id="navbar">
+    <a href="/fa" class="logo logo-light ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-light.png" alt="logo"></a>
+    <a href="/fa" class="logo logo-dark ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-dark.png" alt="logo"></a>
+
+    <nav id="menu">
+        <ul>
+            <li class="nav-link ">
+                <a href="/fa">
+                    <span class="nav-link-text">خانه</span>
+                </a>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/directory/">
+                    <span class="nav-link-text">دایرکتوری</span>
+                </a>
+            </li>
+
+            
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">راهنما</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    
+                        <li><a href="/docs/guide/readme.html" class="">شروع سریع</a></li>
+                    
+                        <li><a href="/docs/guide/send-messages.html" class="">ارسال پیام‌ها</a></li>
+                    
+                        <li><a href="/docs/guide/secret-groups.html" class="">گروه‌های مخفی</a></li>
+                    
+                        <li><a href="/docs/guide/chat-profiles.html" class="">پروفایل‌های چت</a></li>
+                    
+                        <li><a href="/docs/guide/managing-data.html" class="">مدیریت داده‌ها</a></li>
+                    
+                        <li><a href="/docs/guide/audio-video-calls.html" class="">تماس‌های صوتی و تصویری</a></li>
+                    
+                        <li><a href="/docs/guide/privacy-security.html" class="">حریم خصوصی و امنیت</a></li>
+                    
+                        <li><a href="/docs/guide/app-settings.html" class="">تنظیمات برنامه</a></li>
+                    
+                        <li><a href="/docs/guide/making-connections.html" class="">برقراری ارتباطات</a></li>
+                    
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">مرجع</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md"
+                        target="_blank">Whitepaper
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/privacy">سیاست حفظ حریم خصوصی</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/simplex-messaging.md"
+                        target="_blank">پروتکل SMP
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/protocol/simplex-chat.html">پروتکل چت</a></li>
+                    <li><a href="/docs/glossary.html">واژه‌نامه</a></li>
+
+                    <hr>
+
+                    
+                        <li><a href="/docs/simplex.html" class=" lg:px-[20px] inline-block whitespace-nowrap">شبکه SimpleX</a></li>
+                    
+                        <li><a href="/docs/business.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX برای کسب‌وکار</a></li>
+                    
+                        <li><a href="/docs/directory.html" class=" lg:px-[20px] inline-block whitespace-nowrap">سرویس دایرکتوری</a></li>
+                    
+                        <li><a href="/docs/android.html" class=" lg:px-[20px] inline-block whitespace-nowrap">دسترسی به فایل‌های اندروید</a></li>
+                    
+                        <li><a href="/docs/server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">میزبانی سرور SMP</a></li>
+                    
+                        <li><a href="/docs/xftp-server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">میزبانی سرور XFTP</a></li>
+                    
+                        <li><a href="/docs/webrtc.html" class=" lg:px-[20px] inline-block whitespace-nowrap">سرورهای WebRTC</a></li>
+                    
+                        <li><a href="/downloads/" class=" lg:px-[20px] inline-block whitespace-nowrap">دانلودها</a></li>
+                    
+                        <li><a href="/reproduce/" class=" lg:px-[20px] inline-block whitespace-nowrap">Verify & reproduce builds</a></li>
+                    
+                        <li><a href="/transparency/" class=" lg:px-[20px] inline-block whitespace-nowrap">شفافیت</a></li>
+                    
+                        <li><a href="/security/" class=" lg:px-[20px] inline-block whitespace-nowrap">امنیت</a></li>
+                    
+                        <li><a href="/faq/" class=" lg:px-[20px] inline-block whitespace-nowrap">سؤالات متداول</a></li>
+                    
+
+                    <hr>
+
+                    <li><a href="/docs/translations.html"
+                    >SimpleX Chat را ترجمه کنید
+                    </a></li>
+                    <li><a href="/docs/android.html"
+                    >دسترسی به فایل‌های اندروید
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/blob/stable/apps/simplex-bot-advanced/Main.hs"
+                        target="_blank">نمونه چت‌بات
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/tree/stable/packages/simplex-chat-client/typescript"
+                        target="_blank">TypeScript SDK
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/cli.html">رابط خط فرمان ترمینال</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq"
+                        target="_blank">SimpleXMQ
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/blog">
+                    <span class="nav-link-text">بلاگ</span>
+                </a>
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+    </nav>
+
+    <div class="right-links">
+        
+            <a class="box-btn token md:hidden" href="/donate">
+                حمایت مالی
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+            <svg class="sun" width="469" height="469" viewBox="0 0 469 469" fill="none" xmlns="http://www.w3.org/2000/svg">
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+            <path d="M225.368 385.712C222.968 387.046 219.368 390.112 217.368 392.646L213.768 397.312V426.379C213.768 458.246 213.901 458.779 222.968 465.446C228.168 469.312 240.701 469.312 245.901 465.446C254.834 458.779 255.101 457.979 255.501 428.246C256.034 397.579 255.234 394.379 246.834 387.979C241.101 383.579 231.634 382.512 225.368 385.712Z"/>
+            </svg>
+
+            <svg class="moon" width="469" height="469" viewBox="5 5 20 23" xmlns="http://www.w3.org/2000/svg">
+                <path d="M10.895 7.574c0 7.55 5.179 13.67 11.567 13.67 1.588 0 3.101-0.38 4.479-1.063-1.695 4.46-5.996 7.636-11.051 7.636-6.533 0-11.83-5.297-11.83-11.83 0-4.82 2.888-8.959 7.023-10.803-0.116 0.778-0.188 1.573-0.188 2.39z"></path>
+            </svg>
+        </button>
+
+        
+
+        <button id="cross-btn" class="nav-toggle-btn">
+            <svg id="cross" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+            <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z" />
+        </svg>
+        </button>
+    </div>
+</header>
+<div id="mobile-header">
+    <a href="/fa" class="logo flex dark:hidden ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-light.svg" alt="" srcset=""></a>
+    <a href="/fa" class="logo hidden dark:flex ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-dark.svg" alt="" srcset=""></a>
+
+    <button id="hamburger" class="nav-toggle-btn">
+        <svg viewBox="0 0 100 80" width="36" height="36">
+            <rect width="100" height="15"></rect>
+            <rect y="30" width="100" height="15"></rect>
+            <rect y="60" width="100" height="15"></rect>
+        </svg>
+    </button>
+</div>
+
+
+<script>
+// switch theme
+const sunIcon = document.querySelector('.sun');
+const moonIcon = document.querySelector('.moon');
+
+const userTheme = localStorage.getItem('theme');
+const systemTheme = window.matchMedia('(prefers-color-scheme: dark)').matches;
+const prismThemeLink = document.getElementById('prism-theme')
+
+function iconToggle () {
+    sunIcon.classList.toggle('hidden');
+    moonIcon.classList.toggle('hidden');
+}
+
+function themeCheck() {
+    if (userTheme === 'dark' || (!userTheme && systemTheme)) {
+        document.documentElement.classList.add('dark');
+        moonIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+    }
+    else{
+        sunIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+    }
+}
+themeCheck();
+
+function themeSwitch () {
+    if (document.documentElement.classList.contains('dark')) {
+        document.documentElement.classList.remove('dark');
+        localStorage.setItem('theme', 'light');
+        if(prismThemeLink){
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+        iconToggle();
+    } else {
+        document.documentElement.classList.add('dark');
+        localStorage.setItem('theme', 'dark');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+        iconToggle();
+    }
+}
+
+const nav = document.querySelector('header#navbar');
+
+window.addEventListener('click',(e)=>{
+    if(e.target.closest('.nav-link')){
+        if(e.target.closest('.nav-link').classList.contains('active')){
+            e.target.closest('.nav-link').classList.remove('active');
+        }
+        else{
+            document.querySelectorAll('.nav-link').forEach(el => el.classList.remove('active'))
+            e.target.closest('.nav-link').classList.add('active');
+        }
+    }
+    else if(e.target.closest('.nav-toggle-btn')){
+        if(nav.classList.contains('open')){
+            nav.classList.remove('open');
+            document.getElementById('mobile-header').classList.remove('nav-open');
+            document.documentElement.classList.remove('lock-scroll');
+        }
+        else{
+            document.documentElement.classList.add('lock-scroll');
+            document.getElementById('mobile-header').classList.add('nav-open');
+            nav.classList.add('open');
+        }
+    }
+    else if(e.target.closest('.theme-switch-btn')){
+        themeSwitch();
+    }
+});
+</script>
+
+        <html><head><link rel="stylesheet" href="/file-assets/index.css">
+<style>
+  /* Reset website .card styles that conflict with xftp bundle */
+  #app .card { cursor: default; }
+  #app .card,
+  #app .card > div { transition: unset; height: auto; }
+  #app .card > div > * { opacity: unset; max-height: unset; transform: unset; transition: unset; }
+
+  /* Align xftp bundle with website design */
+  #app { font-family: inherit; color: #3F484B; max-width: 600px; width: 100%; margin: 0 auto; padding: 0; }
+  #app .card { background: transparent; box-shadow: none; padding: 0; border-radius: 0; }
+  #app .card > h1 { display: none; }
+  .dark #app h1 { color: #fff; }
+  #app .drop-zone { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; }
+  #app .drop-zone.drag-over { border-color: #0053D0; background: #DBEEFF; }
+  #app .btn { background: #0053D0; border-radius: 34px; padding: 12px 32px; font-size: .9rem; font-weight: 600; }
+  #app .btn:hover { background: #1661D1; }
+  #app .btn-secondary { background: #6b7280; border-radius: 34px; }
+  #app .hint { color: #6b7280; }
+  #app .link-row input { border-radius: 8px; border-color: #c5d3de; }
+  #app .security-note { background: #ffffff; border-radius: 12px; color: #3F484B; }
+  #app .security-note a { color: #0197FF; }
+  #app .success { color: #0053D0; }
+
+  .dark #app { color: #e5e7eb; }
+  .dark #app .card { background: transparent; box-shadow: none; }
+  .dark #app .drop-zone { border-color: #374151; }
+  .dark #app .drop-zone.drag-over { border-color: #70F0F9; background: #1B325C; }
+  .dark #app .btn { background: #70F0F9; color: #000832; }
+  .dark #app .btn:hover { background: #66D9E2; }
+  .dark #app .link-row input { border-color: #374151; background: #071C46; color: #e5e7eb; }
+  .dark #app .security-note { background: #0B2A59; color: #d1d5db; }
+  .dark #app .security-note a { color: #70F0F9; }
+  .dark #app .success { color: #70F0F9; }
+
+  #app #upload-error { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; text-align: center; }
+  .dark #app #upload-error { border-color: #374151; }
+
+  #app .stage > .btn { margin-top: 20px; }
+  #app .security-note { margin-top: 20px; }
+  #app .drop-zone .btn { margin: 10px 0 16px; }
+
+  /* Protocol overlay: image fixed, text scrolls natively */
+  /* Push popup below navbar at all widths */
+  #xftp-protocol { padding-top: 70px; }
+  #xftp-protocol .overlay-card {
+    display: flex;
+    flex-direction: column;
+    position: relative;
+    overflow: hidden;
+  }
+  @media (min-width: 768px) {
+    #xftp-protocol .overlay-card { max-height: min(660px, 100%); }
+  }
+  #xftp-protocol .overlay-card > h1 {
+    flex-shrink: 0;
+    padding-bottom: 16px;
+    margin-bottom: 0;
+    z-index: 1;
+  }
+  @media (min-width: 1024px) and (max-height: 750px) {
+    #xftp-protocol .overlay-card > h1 {
+      font-size: 22px;
+    }
+  }
+  /* .flex is the full-width scroll container */
+  #xftp-protocol .overlay-card > .flex {
+    flex: 1;
+    min-height: 0;
+    overflow-y: auto;
+    scrollbar-width: thin;
+    scrollbar-color: #c5d3de transparent;
+  }
+  .dark #xftp-protocol .overlay-card > .flex {
+    scrollbar-color: #374151 transparent;
+  }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar { width: 6px; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-track { background: transparent; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #c5d3de; border-radius: 3px; }
+  .dark #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #374151; }
+  /* Desktop: text stays left, image fixed on right */
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card > .flex > div:first-child {
+      max-width: 50%;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child {
+      position: absolute;
+      right: 56px;
+      top: 0;
+      bottom: 0;
+      left: 55%;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      pointer-events: none;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child > div {
+      height: 100%;
+      padding: 40px 0;
+      box-sizing: border-box;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child img {
+      height: 100%;
+    }
+  }
+  #xftp-protocol .close-overlay-btn {
+    position: absolute;
+    top: 24px;
+    right: 24px;
+    cursor: pointer;
+    z-index: 3;
+    fill: #606C71;
+  }
+  .dark #xftp-protocol .close-overlay-btn { fill: #e5e7eb; }
+  /* Scroll fade: gradient over text area only, hidden at bottom */
+  #xftp-protocol .overlay-card::after {
+    content: '';
+    position: absolute;
+    bottom: 40px;
+    left: 24px;
+    right: 24px;
+    height: 48px;
+    background: linear-gradient(rgba(255,255,255,0), #fff);
+    pointer-events: none;
+    z-index: 2;
+    transition: opacity 0.2s;
+  }
+  .dark #xftp-protocol .overlay-card::after {
+    background: linear-gradient(rgba(7,28,70,0), #071C46);
+  }
+  @media (min-width: 640px) {
+    #xftp-protocol .overlay-card::after { bottom: 56px; left: 56px; right: 56px; }
+  }
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card::after { right: 55%; }
+  }
+  #xftp-protocol.scrolled-bottom .overlay-card::after { opacity: 0; }
+  #xftp-protocol .overlay-card.flex,
+  #xftp-protocol.flex .overlay-card { animation: overlaySlideIn 0.25s ease-out; }
+  @keyframes overlaySlideIn {
+    from { opacity: 0; transform: scale(0.95) translateY(10px); }
+    to { opacity: 1; transform: scale(1) translateY(0); }
+  }
+  #xftp-protocol.overlay-closing { animation: overlayFadeOut 0.2s ease-in forwards; }
+  #xftp-protocol.overlay-closing .overlay-card { animation: overlaySlideOut 0.2s ease-in forwards; }
+  @keyframes overlayFadeOut {
+    from { opacity: 1; }
+    to { opacity: 0; }
+  }
+  @keyframes overlaySlideOut {
+    from { opacity: 1; transform: scale(1) translateY(0); }
+    to { opacity: 0; transform: scale(0.95) translateY(10px); }
+  }
+
+  .file-proto-link {
+    font-size: 1.25rem;
+    font-weight: 600;
+    background: linear-gradient(90deg, #001aa7 0%, #0095e7 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+    text-decoration: none;
+  }
+  .dark .file-proto-link {
+    background: linear-gradient(90deg, #019bfe 0%, #64fdff 58%, #c8feff 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+  }
+
+</style>
+
+</head><body><section class="bg-secondary-bg-light dark:bg-primary-bg-dark py-10 mt-[66px] px-5">
+  <div class="container flex flex-col items-center mx-auto">
+    <noscript>
+      <p class="text-center text-grey-black dark:text-white py-10">
+        JavaScript is required for file transfer.
+      </p>
+    </noscript>
+    <h1 class="text-[38px] text-center font-bold text-active-blue mb-8">SimpleX File Transfer</h1>
+    <div id="app" data-xftp-app="" data-no-hashchange="" class="w-full">
+      <div class="card">
+        <div class="drop-zone">
+          <p>Drag &amp; drop a file here</p>
+          <p class="hint">or</p>
+          <span class="btn">Choose file</span>
+          <p class="hint">Max 100 MB - <a href="#join-simplex">SimpleX Chat app</a> supports files up to 1 GB</p>
+        </div>
+      </div>
+    </div>
+    <template id="dl-placeholder">
+      <div class="card">
+        <h1>SimpleX File Transfer</h1>
+        <div class="stage">
+          <p>File available</p>
+          <button class="btn">Download</button>
+          <div class="security-note">
+            <p>This file is encrypted - data routers never see file contents, name or size.</p>
+            <p>The encryption key is in the link’s hash fragment - it is never sent to any server.</p>
+            <p>For better security, use <a href="https://simplex.chat/download">SimpleX Chat</a> app.</p>
+          </div>
+        </div>
+      </div>
+    </template>
+    <script>if(location.hash.length>50){var a=document.getElementById("app"),t=document.getElementById("dl-placeholder");if(a&&t)a.replaceChildren(t.content.cloneNode(true))}</script>
+    <script type="module" src="/file-assets/index.js"></script>
+
+    <p class="text-base text-center text-grey-black dark:text-white mt-10 max-w-[600px]">Send files securely with <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span> — no accounts, no tracking.</p>
+    <a href="javascript:void(0)" data-show-overlay="xftp-protocol" class="open-overlay-btn file-proto-link mt-3 block text-center">Learn more about XFTP protocol</a>
+  </div>
+</section>
+
+<section class="bg-primary-bg-light dark:bg-secondary-bg-dark py-[90px] px-5">
+  <div class="container flex flex-col items-center mx-auto text-center">
+    <h2 class="text-[35px] leading-[45px] md:text-[45px] md:leading-[55px] text-grey-black dark:text-white font-bold mb-5">
+      Get SimpleX Chat — the most secure &amp; private messenger
+    </h2>
+    <p class="text-base text-grey-black dark:text-white mb-14 max-w-[600px]">
+      The file transfer you just used uses the same data routing protocol as SimpleX Chat. The app has end-to-end encrypted messaging, voice and video calls, groups, and sending files. No account. No phone. No email. No user profile IDs.
+    </p>
+    <div class="flex items-center justify-center gap-4 flex-wrap">
+      <a href="https://apps.apple.com/us/app/simplex-chat/id1605771084" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apple_store.svg"></a>
+      <a href="https://play.google.com/store/apps/details?id=chat.simplex.app" target="_blank"><img class="h-[40px] w-auto" src="/img/new/google_play.svg"></a>
+      <a href="/fa/fdroid"><img class="h-[40px] w-auto" src="/img/new/f_droid.svg"></a>
+      <a href="https://testflight.apple.com/join/DWuT2LQu" target="_blank"><img class="h-[40px] w-auto" src="/img/new/testflight.png"></a>
+      <a href="https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-aarch64.apk" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apk_icon.png"></a>
+    </div>
+  </div>
+</section>
+
+
+  
+    
+    <div id="xftp-protocol" data-scroll-to="" class="overlay hidden fixed top-0 left-0 bottom-0 right-0 before:absolute before:w-full before:h-full bg-transparent before:bg-secondary-bg-light dark:before:bg-primary-bg-dark before:opacity-90 items-center justify-center p-3 md:p-10 z-[10000]">
+        <div class="overlay-card w-full md:w-fit md:max-w-[1276px] bg-white dark:bg-card-bg-dark opacity-100 h-full md:h-fit md:max-h-[660px] z-[10001] rounded-md shadow-[0px_3px_12px_rgba(0,0,0,0.2)] p-6 py-10 sm:p-14 overflow-auto scale-100">
+            <h1 class="text-3xl font-bold text-active-blue mb-6 ">XFTP protocol: the most secure file transfer</h1>
+            <div class="flex flex-col-reverse lg:flex-row gap-10 justify-between">
+                
+                    <div class="lg:max-w-[448px]">
+                        <div class="text-grey-black dark:text-white flex flex-col gap-6 text-base">
+                            <div>
+  <h3 class="font-bold text-lg mb-2">No account required</h3>
+  <p>Each file fragment uses a new random key. Data routers have no "users" or "files" - they transfer encrypted file fragments of fixed sizes.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Triple-encrypted in your browser</h3>
+  <p>File encryption key is present only in the URL hash fragment - your browser never sends it to a server. There are 3 encryption layers: TLS transport, per-recipient encryption (unique ephemeral key per transfer), and file <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span>.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Independent data routers</h3>
+  <p>When file is split to fragments, it is sent via network routers operated by independent parties. No operator can see the actual file size or name. Even if a router is compromised, it can only see encrypted fragments of fixed size. File fragments are cached by network routers for approximately 48 hours.</p>
+</div>
+<p class="mt-4">
+  <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/xftp.md" target="_blank" rel="noopener" class="text-active-blue hover:underline">
+    Read the XFTP protocol specification →
+  </a>
+</p>
+
+                        </div>
+                    </div>
+                
+
+                
+                    <div class="max-w-[448px]">
+                        <div class="flex items-center justify-center">
+                            <img class="w-full max-w-[448px] min-w-[300px] dark:hidden" src="/img/new/xftp-protocol.svg" alt="">
+                            <img class="w-full max-w-[448px] min-w-[300px] hidden dark:block" src="/img/new/xftp-protocol-dark.svg" alt="">
+                        </div>
+                    </div>
+                
+            </div>
+
+            <svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+                <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z"></path>
+            </svg>
+        </div>
+    </div>
+
+
+
+<script>
+  window.__XFTP_I18N__ = {
+    "title": "SimpleX File Transfer",
+    "dropZone": "Drag & drop a file here",
+    "dropZoneHint": "or",
+    "chooseFile": "Choose file",
+    "maxSizeHint": "Max 100 MB - <a href=\"#join-simplex\">SimpleX Chat app</a> supports files up to 1 GB",
+    "encrypting": "Encrypting…",
+    "uploading": "Uploading…",
+    "cancel": "Cancel",
+    "fileUploaded": "File uploaded",
+    "copy": "Copy",
+    "copied": "Copied!",
+    "share": "Share",
+    "expiryHint": "Files are typically available for 48 hours.",
+    "securityNote1": "Your file was encrypted in the browser - data routers never see file contents, name or size.",
+    "securityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "securityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "retry": "Retry",
+    "downloading": "Downloading…",
+    "decrypting": "Decrypting…",
+    "downloadComplete": "Download complete",
+    "download": "Download",
+    "fileTooLarge": "File too large (%size%). Maximum is 100 MB. The <a href=\"#join-simplex\">SimpleX app</a> supports files up to 1 GB.",
+    "fileEmpty": "File is empty.",
+    "invalidLink": "Invalid or corrupted link.",
+    "initError": "Failed to initialize: %error%",
+    "fileAvailable": "File available (~%size%)",
+    "dlSecurityNote1": "This file is encrypted - data routers never see file contents, name or size.",
+    "dlSecurityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "dlSecurityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "workersRequired": "Web Workers required — update your browser"
+  }
+</script>
+
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+<div id="address-portability" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Address portability</h1><div class="overlay-content"><p>Similarly to <a href="https://en.wikipedia.org/wiki/Local_number_portability">phone number portability</a> (the ability of the customer to transfer the service to another provider without changing the number), the address portability means the ability of a communication service customer to change the service provider without changing the service address. Many <a href="#federated-network">federated networks</a> support SRV records to provide address portability, but allowing service users to set up their own domains for the addresses is not as commonly supported by the available server and client software as for email.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="federated-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Federated network</h1><div class="overlay-content"><p>Federated network is provided by several entities that agree upon the standards and operate the network collectively. This allows the users to choose their provider, that will hold their account, their messaging history and contacts, and communicate with other providers' servers on behalf of the user. The examples are email, XMPP, Matrix and Mastodon.</p><p>The advantage of that design is that there is no single organization that all users depend on, and the standards are more difficult to change, unless it benefits all users. There are several disadvantages: 1) the innovation is slower, 2) each user account still depends on a single organization, and in most cases can't move to another provider without changing their network address – there is no <a href="#address-portability">address portability</a>, 3) the security and privacy are inevitably worse than with the centralized networks.</p><p><a href="https://en.wikipedia.org/wiki/Federation_(information_technology)">Federation on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="anonymous-credentials" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Anonymous credentials</h1><div class="overlay-content"><p>The credential that allows proving something, e.g. the right to access some resource, without identifying the user. This credential can either be generated by a trusted party or by the user themselves and provided together with the request to create the resource. The first approach creates some centralized dependency in most cases. The second approach does not require any trust - this is used in SimpleX network to authorize access to the messaging queues.</p><p><a href="https://en.wikipedia.org/wiki/Digital_credential">Digital credential on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="blockchain" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Blockchain</h1><div class="overlay-content"><p>In a wide sense, blockchain means a sequence of blocks of data, where each block contains a cryptographic hash of the previous block, thus providing integrity to the whole chain. Blockchains are used in many communication and information storage systems to provide integrity and immutability of the data. For example, BluRay disks use blockchain. SimpleX messaging queues also use blockchain - each message includes the hash of the previous message, to ensure the integrity – if any message is modified it will be detected by the recipient when the next message is received. Blockchains are a subset of <a href="#merkle-directed-acyclic-graph">Merkle directed acyclic graphs</a>.</p><p>In a more narrow sense, particularly in media, blockchain is used to refer specifically to distributed ledger, where each record also includes the hash of the previous record, but the blocks have to be agreed by the participating peers using some <a href="https://en.wikipedia.org/wiki/Consensus_(computer_science)">consensus protocol</a>.</p><p><a href="https://en.wikipedia.org/wiki/Blockchain">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="merkle-directed-acyclic-graph" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Merkle directed acyclic graph</h1><div class="overlay-content"><p>Also known as Merkle DAG, a data structure based on a general graph structure where node contains the cryptographic hashes of the previous nodes that point to it. Merkle trees are a subset of Merkle DAGs - in this case each leaf contains a cryptographic hash of the parent.</p><p>This structure by design allows to verify the integrity of the whole structure by computing its hashes and comparing with the hashes included in the nodes, in the same way as with <a href="#blockchain">blockchain</a>.</p><p>The motivation to use DAG in distributed environments instead of a simpler linear blockchain is to allow concurrent additions, when there is no requirement for a single order of added items. Merkle DAG is used, for example, in <a href="https://en.wikipedia.org/wiki/InterPlanetary_File_System">IPFS</a> and will be used in decentralized SimpleX groups.</p><p><a href="https://en.wikipedia.org/wiki/Merkle_tree">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="break-in-recovery" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Break-in recovery</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="double-ratchet-algorithm" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Double ratchet algorithm</h1><div class="overlay-content"><p>It is used by two parties to exchange <a href="#end-to-end-encryption">end-to-end encrypted</a> messages. The parties will use some <a href="#key-agreement-protocol">key agreement protocol</a> to agree on the initial shared secret key.</p><p>Double Ratchet algorithm provides <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>. It is <a href="https://signal.org/docs/specifications/doubleratchet">designed by Signal</a>, and used in SimpleX Chat and many other secure messengers. Most experts consider it the state-of-the-art encryption protocol in message encryption.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="centralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Centralized network</h1><div class="overlay-content"><p>Centralized networks are provided or controlled by a single entity. The examples are Threema, Signal, WhatsApp and Telegram. The advantage of that design is that the provider can innovate faster, and has a centralized approach to security. But the disadvantage is that the provider can change or discontinue the service, and leak, sell or disclose in some other way all users' data, including who they are connected with.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="content-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Content padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="decentralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Decentralized network</h1><div class="overlay-content"><p>Decentralized network is often used to mean "the network based on decentralized blockchain". In its original meaning, decentralized network means that there is no central authority or any other point of centralization in the network, other than network protocols specification. The advantage of decentralized networks is that they are resilient to censorship and to the provider going out of business. The disadvantage is that they are often slower to innovate, and the security may be worse than with the centralized network.</p><p>The examples of decentralized networks are email, web, DNS, XMPP, Matrix, BitTorrent, etc. All these examples have a shared global application-level address space. Cryptocurrency blockchains not only have a shared address space, but also a shared state, so they are more centralized than email. Tor network also has a shared global address space, but also a central authority. SimpleX network does not have a shared application-level address space (it relies on the shared transport-level addresses - SMP relay hostnames or IP addresses), and it does not have any central authority or any shared state.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="defense-in-depth" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Defense in depth</h1><div class="overlay-content"><p>Originally, it is a military strategy that seeks to delay rather than prevent the advance of an attacker, buying time and causing additional casualties by yielding space.</p><p>In information security, defense in depth represents the use of multiple computer security techniques to help mitigate the risk of one component of the defense being compromised or circumvented. An example could be anti-virus software installed on individual workstations when there is already virus protection on the firewalls and servers within the same environment.</p><p>SimpleX network applies defense in depth approach to security by having multiple layers for the communication security and privacy:</p><ul>
+<li>double ratchet algorithm for <a href="#end-to-end-encryption">end-to-end encryption</a> with <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>,</li>
+<li>additional layer of end-to-end encryption for each messaging queue and another encryption layer of encryption from the server to the recipient inside TLS to prevent correlation by ciphertext,</li>
+<li>TLS with only strong ciphers allowed,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-server connection via server offline certificate verification,</li>
+<li>mitigation of replay attacks via signing over transport channel binding,</li>
+<li>multiple layers of <a href="#message-padding">message padding</a> to reduce efficiency of traffic analysis,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-client out-of-band channel when sending the invitation,</li>
+<li>rotation of delivery queues to reduce efficiency of traffic analysis,</li>
+<li>etc.</li>
+</ul><p><a href="https://en.wikipedia.org/wiki/Defence_in_depth">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="end-to-end-encryption" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">End-to-end encryption</h1><div class="overlay-content"><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><p>End-to-end encryption requires agreeing cryptographic keys between the sender and the recipient in a way that no eavesdroppers can access the agreed keys. See <a href="#key-agreement-protocol">key agreement protocol</a>. This key exchange can be compromised via <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>, particularly if key exchange happens via the same communication provider and no out-of-band channel is used to verify key exchange.</p><p><a href="https://en.wikipedia.org/wiki/End-to-end_encryption">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-compromise-security" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-compromise security</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="man-in-the-middle-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Man-in-the-middle attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="message-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Message padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="key-agreement-protocol" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key agreement protocol</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="tooltip-end-to-end-encryption" class="glossary-tooltip"><div class="tooltip-content"><h4 class="tooltip-title">End-to-end encryption</h4><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><button class="read-more-btn open-overlay-btn" data-show-overlay="end-to-end-encryption">Read more</button></div></div><div id="key-exchange" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key exchange</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="mitm-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">MITM attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="non-repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Non-repudiation</h1><div class="overlay-content">Non-repudiation</div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="onion-routing" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Onion routing</h1><div class="overlay-content"><p>A technique for anonymous communication over a computer network that uses multiple layers of message encryption, analogous to the layers of an onion. The encrypted data is transmitted through a series of network nodes called "onion routers," each of which "peels" away a single layer, revealing the data's next destination. The sender remains anonymous because each intermediary knows only the location of the immediately preceding and following nodes.</p><p>The most widely used onion network is <a href="https://en.wikipedia.org/wiki/Tor_(network)">Tor</a>.</p><p>Some elements of SimpleX network use similar ideas in their design - different addresses for the same resource used by different parties, and additional encryption layers. Currently though, SimpleX messaging protocol does not protect sender network address, as the relay server is chosen by the recipient. The delivery relays chosen by sender that are planned for the future would make SimpleX design closer to onion routing.</p><p><a href="https://en.wikipedia.org/wiki/Onion_routing">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="overlay-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Overlay network</h1><div class="overlay-content"><p>Nodes in the overlay network can be thought of as being connected by virtual or logical links, each of which corresponds to a path, perhaps through many physical links, in the underlying network. Tor, for example, is an overlay network on top of IP network, which in its turn is also an overlay network over some underlying physical network.</p><p>SimpleX Clients also form a network using SMP relays and IP or some other overlay network (e.g., Tor), to communicate with each other. SMP relays, on another hand, do not form a network.</p><p><a href="https://en.wikipedia.org/wiki/Overlay_network">Wikipedia</a></p><h1>Non-repudiation</h1><p>The property of the cryptographic or communication system that allows the recipient of the message to prove to any third party that the sender identified by some cryptographic key sent the message. It is the opposite to <a href="#repudiation">repudiation</a>. While in some context non-repudiation may be desirable (e.g., for contractually binding messages), in the context of private communications it may be undesirable.</p><p><a href="https://en.wikipedia.org/wiki/Non-repudiation">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Repudiation</h1><div class="overlay-content"><p>The property of the cryptographic or communication system that allows the sender of the message to plausibly deny having sent the message, because while the recipient can verify that the message was sent by the sender, they cannot prove it to any third party - the recipient has a technical ability to forge the same encrypted message. This is an important quality of private communications, as it allows to have the conversation that can later be denied, similarly to having a private face-to-face conversation.</p><p>See also <a href="#non-repudiation">non-repudiation</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="pairwise-pseudonymous-identifier" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Pairwise pseudonymous identifier</h1><div class="overlay-content"><p>Generalizing <a href="https://csrc.nist.gov/glossary/term/pairwise_pseudonymous_identifier">the definition</a> from NIST Digital Identity Guidelines, it is an opaque unguessable identifier generated by a service used to access a resource by only one party.</p><p>In the context of SimpleX network, these are the identifiers generated by SMP relays to access anonymous messaging queues, with a separate identifier (and access credential) for each accessing party: recipient, sender and and optional notifications subscriber. The same approach is used by XFTP relays to access file chunks, with separate identifiers (and access credentials) for sender and each recipient.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Peer-to-peer</h1><div class="overlay-content"><p>Peer-to-peer (P2P) is the network architecture when participants have equal rights and communicate directly via a general purpose transport or overlay network. Unlike client-server architecture, all peers in a P2P network both provide and consume the resources. In the context of messaging, P2P architecture usually means that the messages are sent between peers, without user accounts or messages being stored on any servers. Examples are Tox, Briar, Cwtch and many others.</p><p>The advantage is that the participants do not depend on any servers. There are <a href="./SIMPLEX.md#comparison-with-p2p9-messaging-protocols">multiple downsides</a> to that architecture, such as no asynchronous message delivery, the need for network-wide peer addresses, possibility of network-wide attacks, that are usually mitigated only by using a centralized authority. These disadvantages are avoided with <a href="#proxied-peer-to-peer">proxied P2P</a> architecture.</p><p><a href="https://en.wikipedia.org/wiki/Peer-to-peer">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="proxied-peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Proxied peer-to-peer</h1><div class="overlay-content"><p>Network topology of the communication system when peers communicate via proxies that do not form the network themselves. Such design is used in Pond, that has a fixed home server for each user, and in SimpleX, that uses multiple relays providing temporary connections.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="perfect-forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Perfect forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-cryptography" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum cryptography</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-hybrid-crypto" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum hybrid crypto</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="recovery-from-compromise" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Recovery from compromise</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="user-identity" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">User identity</h1><div class="overlay-content"><p>In a communication system it refers to anything that uniquely identifies the users to the network. Depending on the communication network, it can be a phone number, email address, username, public key or a random opaque identifier. Most messaging networks rely on some form of user identity. SimpleX appears to be the only messaging network that does not rely on any kind of user identity - see <a href="https://en.wikipedia.org/wiki/Comparison_of_instant_messaging_protocols">this comparison</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div></body></html>
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+                                    19.3216 25.0173 19.3216C23.9563 19.3216 23.0902 20.1878 23.0902 21.2488Z" />
+                            </svg>
+                        </a>
+                        <a href="https://twitter.com/simplexchat" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 41 41" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M20.4575 40.9268C31.5032 40.9268 40.4575 31.9725 40.4575 20.9268C40.4575 9.88106 31.5032 0.926758 20.4575 0.926758C9.41182 0.926758 0.45752 9.88106 0.45752 20.9268C0.45752 31.9725 9.41182 40.9268 20.4575 40.9268ZM29.916 16.7766C29.916 23.1157 25.014 30.4265 16.0519 30.4265V30.423C13.4038 30.4265 10.8115 29.6795 8.58252 28.2719C8.96846 28.3174 9.35558 28.3397 9.74271 28.3409C11.9372 28.3432 14.0688 27.6182 15.7942 26.283C13.7101 26.2444 11.8802 24.9055 11.2425 22.9507C11.9716 23.0898 12.7245 23.0619 13.4418 22.869C11.1689 22.4165 9.53371 20.4504 9.53252 18.1671V18.1062C10.2106 18.478 10.9694 18.6835 11.7448 18.7057C9.60377 17.2981 8.94233 14.4948 10.2355 12.3026C12.7103 15.2992 16.3606 17.1207 20.2782 17.3147C19.8851 15.6487 20.4231 13.902 21.6878 12.7306C23.6507 10.9137 26.737 11.0073 28.5824 12.9387C29.6737 12.7271 30.7199 12.3327 31.677 11.7738C31.3125 12.8857 30.5513 13.828 29.5348 14.4277C30.5002
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+                            </svg>
+                        </a>
+                        <a href="https://www.linkedin.com/company/simplex-chat/" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 41 41" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M20.0408 0.926758C8.9951 0.926758 0.0407715 9.88109 0.0407715 20.9268C0.0407715 31.9724 8.9951 40.9268 20.0408 40.9268C31.0864 40.9268 40.0408 31.9724 40.0408 20.9268C40.0408 9.88109 31.0864 0.926758 20.0408 0.926758ZM9.6421 17.4916H14.1745V31.1098H9.6421V17.4916ZM14.4731 13.279C14.4437 11.9438 13.4889 10.9268 11.9383 10.9268C10.3878 10.9268 9.3741 11.9438 9.3741 13.279C9.3741 14.5866 10.3579 15.6328 11.8794 15.6328H11.9084C13.4889 15.6328 14.4731 14.5866 14.4731 13.279ZM25.3017 17.1718C28.2843 17.1718 30.5203 19.1187 30.5203 23.3015L30.5201 31.1098H25.9879V23.824C25.9879 21.994 25.3319 20.7453 23.6912 20.7453C22.439 20.7453 21.6932 21.5871 21.3656 22.4003C21.2458 22.6916 21.2164 23.0976 21.2164 23.5046V31.1101H16.6834C16.6834 31.1101 16.7431 18.7698 16.6834 17.492H21.2164V19.4208C21.8179 18.4936 22.8953 17.1718 25.3017 17.1718Z" />
+                            </svg>
+                        </a>
+                        <a href="https://simplex.chat/feed.rss" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 512 512" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M256 512C397.385 512 512 397.385 512 256C512 114.615 397.385 0 256 0C114.615 0 0 114.615 0 256C0 397.385 114.615 512 256 512ZM132.791 157.572C215.586 161.137 279.503 196.841 323.612 267.517C344.138 302.436 354.186 339.959 354.57 380.122H406.814C409.639 231.301 280.977 103.1 132.791 106.05V157.572ZM309.994 343.843C311.593 356.035 313.096 367.877 314.65 380.116H261.161C260.496 344.968 248.303 314.452 223.472 289.485C198.613 264.491 168.097 252.282 132.755 251.38V199.743C198.318 196.346 288.694 244.344 309.994 343.843ZM132.766 336.706C129.293 354.261 137.796 370.323 154.848 378.004L155.461 378.242C156.267 378.558 156.912 378.81 157.577 378.985C173.012 383.066 186.298 379.318 196.604 367.168C206.463 355.544 208.397 342.145 201.87 328.354C195.205 314.271 183.419 307.215 167.834 307.356C151.188 307.509 135.971 320.504 132.766 336.706Z" />
+                            </svg>
+                        </a>
+                    </div>
+                </div>
+            </article>
+        </div>
+        <a href="#" class="text-grey-black dark:text-white text-[16px] text-center lg:ltr:text-left lg:rtl:text-right font-medium leading-[28px] tracking-[0.01em] block mt-[60px]">© ۲۰۲۰-۲۰۲۵ SimpleX | پروژه متن‌باز</a>
+    </div>
+</section>
+
+
+        <script src="/js/swiper-bundle.min.js"></script>
+        <script src="/js/script.js"></script>
+    </body>
+</html>
diff --git a/fa/index.html b/fa/index.html
index 23f36dbaa4..e661fb46ba 100644
--- a/fa/index.html
+++ b/fa/index.html
@@ -149,6 +149,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/fa/invitation/index.html b/fa/invitation/index.html
index 44fd6a7ddf..35af131ad8 100644
--- a/fa/invitation/index.html
+++ b/fa/invitation/index.html
@@ -129,6 +129,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/fa/messaging/index.html b/fa/messaging/index.html
index 76a9544af8..954c3c6d6c 100644
--- a/fa/messaging/index.html
+++ b/fa/messaging/index.html
@@ -129,6 +129,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/fa/old/index.html b/fa/old/index.html
index 4b6deb6106..655d23096f 100644
--- a/fa/old/index.html
+++ b/fa/old/index.html
@@ -129,6 +129,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/fa/why/index.html b/fa/why/index.html
index 9a0634f792..683e995dc5 100644
--- a/fa/why/index.html
+++ b/fa/why/index.html
@@ -129,6 +129,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/faq/index.html b/faq/index.html
index a1f135616f..d91158fa4a 100644
--- a/faq/index.html
+++ b/faq/index.html
@@ -124,6 +124,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/fdroid/index.html b/fdroid/index.html
index 1aedc36761..c8836289d4 100644
--- a/fdroid/index.html
+++ b/fdroid/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/fi/contact/index.html b/fi/contact/index.html
index 33a574afe7..d152a7b870 100644
--- a/fi/contact/index.html
+++ b/fi/contact/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/fi/fdroid/index.html b/fi/fdroid/index.html
index a518b0b4d3..f378a1ac11 100644
--- a/fi/fdroid/index.html
+++ b/fi/fdroid/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/fi/file/index.html b/fi/file/index.html
new file mode 100644
index 0000000000..f3a4708464
--- /dev/null
+++ b/fi/file/index.html
@@ -0,0 +1,888 @@
+<!DOCTYPE html>
+<html lang="fi"
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+            dir="ltr"
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    >
+    <head>
+        <meta charset="UTF-8">
+        <meta http-equiv="X-UA-Compatible" content="IE=edge">
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        <title>SimpleX File Transfer</title>
+        <meta name="description" content="Send files securely with end-to-end encryption"/>
+        <meta name="Content-Type" content="text/html;charset=utf-8"/>
+        
+        <meta http-equiv="onion-location" content="http://isdb4l77sjqoy2qq7ipum6x3at6hyn3jmxfx4zdhc72ufbmuq4ilwkqd.onion/" />
+        <meta property="og:url" content="https://simplex.chat/" />
+        
+        <meta property="og:type" content="website"/>
+        <meta property="og:title" content="SimpleX File Transfer"/>
+        <meta property="og:description" content="Send files securely with end-to-end encryption"/>
+        <meta property="og:image" content="https://simplex.chat/img/share_simplex.jpg"/>
+        <meta name="twitter:card" content="summary"/>
+        <link rel="icon" type="image/png" sizes="96x96" href="/img/favicon.ico"/>
+
+        <link rel="stylesheet" href="/css/swiper-bundle.min.css">
+        <link rel="stylesheet" href="/css/blog.css">
+        <link href="/css/tailwind.css" rel="stylesheet"/>
+        <link rel="stylesheet" href="/css/style.css">
+        <link rel="stylesheet" href="/css/design3-nav.css">
+        <script async defer src="https://buttons.github.io/buttons.js"></script>
+        <script src="/js/flag-anchor.js"></script>
+        
+    </head>
+    <body class="bg-[#F3FAFF] dark:bg-[#000832]">
+        
+
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+        
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+
+<header id="navbar">
+    <a href="/fi" class="logo logo-light ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-light.png" alt="logo"></a>
+    <a href="/fi" class="logo logo-dark ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-dark.png" alt="logo"></a>
+
+    <nav id="menu">
+        <ul>
+            <li class="nav-link ">
+                <a href="/fi">
+                    <span class="nav-link-text">Koti</span>
+                </a>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/directory/">
+                    <span class="nav-link-text">Hakemisto</span>
+                </a>
+            </li>
+
+            
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">Opas</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    
+                        <li><a href="/docs/guide/readme.html" class="">Nopea aloitus</a></li>
+                    
+                        <li><a href="/docs/guide/send-messages.html" class="">Viestien lähettäminen</a></li>
+                    
+                        <li><a href="/docs/guide/secret-groups.html" class="">Salaiset ryhmät</a></li>
+                    
+                        <li><a href="/docs/guide/chat-profiles.html" class="">Keskusteluprofiilit</a></li>
+                    
+                        <li><a href="/docs/guide/managing-data.html" class="">Datan hallinta</a></li>
+                    
+                        <li><a href="/docs/guide/audio-video-calls.html" class="">Ääni- ja videopuhelut</a></li>
+                    
+                        <li><a href="/docs/guide/privacy-security.html" class="">Yksityisyys ja turvallisuus</a></li>
+                    
+                        <li><a href="/docs/guide/app-settings.html" class="">Sovellusasetukset</a></li>
+                    
+                        <li><a href="/docs/guide/making-connections.html" class="">Yhteyksien luominen</a></li>
+                    
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">Lisätietoja</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md"
+                        target="_blank">Whitepaper
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/privacy">Käyttöehdot ja yksityisyys­käytäntö</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/simplex-messaging.md"
+                        target="_blank">SMP-protokolla
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/protocol/simplex-chat.html">Keskustelu­protokolla</a></li>
+                    <li><a href="/docs/glossary.html">Sanasto</a></li>
+
+                    <hr>
+
+                    
+                        <li><a href="/docs/simplex.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX-alusta</a></li>
+                    
+                        <li><a href="/docs/business.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX yrityksille</a></li>
+                    
+                        <li><a href="/docs/directory.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX Hakupalvelu</a></li>
+                    
+                        <li><a href="/docs/android.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Android-tiedostoihin pääseminen</a></li>
+                    
+                        <li><a href="/docs/server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SMP-palvelimen isännöiminen</a></li>
+                    
+                        <li><a href="/docs/xftp-server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">XFTP-palvelimen isännöiminen</a></li>
+                    
+                        <li><a href="/docs/webrtc.html" class=" lg:px-[20px] inline-block whitespace-nowrap">WebRTC-palvelimet</a></li>
+                    
+                        <li><a href="/downloads/" class=" lg:px-[20px] inline-block whitespace-nowrap">Lataukset</a></li>
+                    
+                        <li><a href="/reproduce/" class=" lg:px-[20px] inline-block whitespace-nowrap">Verify & reproduce builds</a></li>
+                    
+                        <li><a href="/transparency/" class=" lg:px-[20px] inline-block whitespace-nowrap">Läpinäkyvyys</a></li>
+                    
+                        <li><a href="/security/" class=" lg:px-[20px] inline-block whitespace-nowrap">Turvallisuus</a></li>
+                    
+                        <li><a href="/faq/" class=" lg:px-[20px] inline-block whitespace-nowrap">Usein kysytyt kysymykset</a></li>
+                    
+
+                    <hr>
+
+                    <li><a href="/docs/translations.html"
+                    >Käännä SimpleX Chat
+                    </a></li>
+                    <li><a href="/docs/android.html"
+                    >Android-tiedostoihin pääseminen
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/blob/stable/apps/simplex-bot-advanced/Main.hs"
+                        target="_blank">Keskustelu­botti-esimerkki
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/tree/stable/packages/simplex-chat-client/typescript"
+                        target="_blank">TypeScript SDK
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/cli.html">Pääte CLI</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq"
+                        target="_blank">SimpleXMQ
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/blog">
+                    <span class="nav-link-text">Blogi</span>
+                </a>
+            </li>
+        </ul>
+    </nav>
+
+    <div class="right-links">
+        
+            <a class="box-btn token md:hidden" href="/donate">
+                Lahjoita
+            </a>
+        
+        <button href="#" class="theme-switch-btn">
+            <svg class="sun" width="469" height="469" viewBox="0 0 469 469" fill="none" xmlns="http://www.w3.org/2000/svg">
+            <path d="M225.768 1.44594C220.301 3.84594 214.701 10.6459 213.768 15.9793C213.234 18.3793 213.101 31.7126 213.368 45.7126L213.768 71.1793L217.634 76.1126C226.701 88.1126 242.968 87.5793 252.301 75.0459C254.968 71.5793 255.101 69.5793 255.101 42.2459C255.101 14.9126 254.968 12.9126 252.301 9.44594C250.834 7.44594 248.034 4.51261 246.168 3.17928C241.768 -0.154057 231.101 -1.08739 225.768 1.44594Z"/>
+            <path d="M72.9687 65.3128C63.7687 71.5794 60.1687 81.4461 63.7687 91.1794C65.502 95.4461 98.702 129.446 104.035 132.379C106.035 133.446 110.569 134.246 114.035 134.246C126.035 134.246 134.435 125.846 134.435 113.846C134.435 110.379 133.635 105.846 132.569 103.846C129.635 98.5128 95.6353 65.3128 91.3687 63.5794C85.102 61.3128 77.902 61.9794 72.9687 65.3128Z"/>
+            <path d="M377.102 63.7128C373.102 65.3128 338.969 98.7794 336.302 103.846C335.236 105.846 334.436 110.379 334.436 113.846C334.436 125.846 342.836 134.246 354.836 134.246C358.302 134.246 362.836 133.446 364.836 132.379C370.169 129.446 403.369 95.4461 405.102 91.1794C408.702 81.4461 405.102 71.5794 395.902 65.3128C391.102 61.9794 383.102 61.3128 377.102 63.7128Z"/>
+            <path d="M211.635 108.246C185.635 113.179 163.502 125.046 144.302 144.112C117.902 170.512 104.968 203.579 106.835 240.246C109.768 297.712 149.102 344.912 205.902 359.179C218.568 362.379 250.302 362.379 262.968 359.179C310.435 347.312 345.768 312.646 358.702 265.046C362.435 251.446 362.835 219.446 359.368 205.712C347.368 158.112 312.302 122.379 265.235 110.112C251.768 106.512 225.502 105.579 211.635 108.246Z"/>
+            <path d="M12.4349 214.779C-0.498477 220.379 -4.09848 237.579 5.23486 248.246C11.2349 255.046 15.6349 255.846 45.3682 255.313C74.0349 254.913 75.1015 254.646 81.6349 245.713C85.9015 239.979 85.5015 228.113 80.8349 221.979C74.4349 213.713 71.2349 212.913 42.1682 212.913C23.7682 213.046 15.2349 213.579 12.4349 214.779Z"/>
+            <path d="M396.035 215.179C393.635 216.379 390.035 219.445 388.035 221.979C383.368 228.112 382.968 239.979 387.235 245.712C394.035 254.779 394.301 254.912 426.435 254.912C458.568 254.912 458.835 254.779 465.635 245.712C469.501 240.512 469.501 227.979 465.635 222.779C458.968 213.845 458.301 213.579 428.035 213.179C404.435 212.912 399.768 213.179 396.035 215.179Z"/>
+            <path d="M103.101 336.779C96.7013 340.779 65.368 373.179 63.768 377.313C57.368 394.513 74.168 411.313 91.368 404.913C95.6347 403.179 129.635 369.979 132.568 364.646C135.368 359.446 134.968 349.046 131.768 343.846C126.168 334.646 112.035 331.179 103.101 336.779Z"/>
+            <path d="M344.035 336.912C341.635 338.379 338.569 341.445 337.102 343.845C333.902 349.045 333.502 359.445 336.302 364.645C339.235 369.979 373.235 403.179 377.502 404.912C387.235 408.512 397.102 404.912 403.369 395.712C406.702 390.779 407.369 383.579 405.102 377.312C403.369 373.045 370.169 339.045 364.835 336.112C359.635 333.312 349.235 333.712 344.035 336.912Z"/>
+            <path d="M225.368 385.712C222.968 387.046 219.368 390.112 217.368 392.646L213.768 397.312V426.379C213.768 458.246 213.901 458.779 222.968 465.446C228.168 469.312 240.701 469.312 245.901 465.446C254.834 458.779 255.101 457.979 255.501 428.246C256.034 397.579 255.234 394.379 246.834 387.979C241.101 383.579 231.634 382.512 225.368 385.712Z"/>
+            </svg>
+
+            <svg class="moon" width="469" height="469" viewBox="5 5 20 23" xmlns="http://www.w3.org/2000/svg">
+                <path d="M10.895 7.574c0 7.55 5.179 13.67 11.567 13.67 1.588 0 3.101-0.38 4.479-1.063-1.695 4.46-5.996 7.636-11.051 7.636-6.533 0-11.83-5.297-11.83-11.83 0-4.82 2.888-8.959 7.023-10.803-0.116 0.778-0.188 1.573-0.188 2.39z"></path>
+            </svg>
+        </button>
+
+        
+
+        <button id="cross-btn" class="nav-toggle-btn">
+            <svg id="cross" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+            <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z" />
+        </svg>
+        </button>
+    </div>
+</header>
+<div id="mobile-header">
+    <a href="/fi" class="logo flex dark:hidden ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-light.svg" alt="" srcset=""></a>
+    <a href="/fi" class="logo hidden dark:flex ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-dark.svg" alt="" srcset=""></a>
+
+    <button id="hamburger" class="nav-toggle-btn">
+        <svg viewBox="0 0 100 80" width="36" height="36">
+            <rect width="100" height="15"></rect>
+            <rect y="30" width="100" height="15"></rect>
+            <rect y="60" width="100" height="15"></rect>
+        </svg>
+    </button>
+</div>
+
+
+<script>
+// switch theme
+const sunIcon = document.querySelector('.sun');
+const moonIcon = document.querySelector('.moon');
+
+const userTheme = localStorage.getItem('theme');
+const systemTheme = window.matchMedia('(prefers-color-scheme: dark)').matches;
+const prismThemeLink = document.getElementById('prism-theme')
+
+function iconToggle () {
+    sunIcon.classList.toggle('hidden');
+    moonIcon.classList.toggle('hidden');
+}
+
+function themeCheck() {
+    if (userTheme === 'dark' || (!userTheme && systemTheme)) {
+        document.documentElement.classList.add('dark');
+        moonIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+    }
+    else{
+        sunIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+    }
+}
+themeCheck();
+
+function themeSwitch () {
+    if (document.documentElement.classList.contains('dark')) {
+        document.documentElement.classList.remove('dark');
+        localStorage.setItem('theme', 'light');
+        if(prismThemeLink){
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+        iconToggle();
+    } else {
+        document.documentElement.classList.add('dark');
+        localStorage.setItem('theme', 'dark');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+        iconToggle();
+    }
+}
+
+const nav = document.querySelector('header#navbar');
+
+window.addEventListener('click',(e)=>{
+    if(e.target.closest('.nav-link')){
+        if(e.target.closest('.nav-link').classList.contains('active')){
+            e.target.closest('.nav-link').classList.remove('active');
+        }
+        else{
+            document.querySelectorAll('.nav-link').forEach(el => el.classList.remove('active'))
+            e.target.closest('.nav-link').classList.add('active');
+        }
+    }
+    else if(e.target.closest('.nav-toggle-btn')){
+        if(nav.classList.contains('open')){
+            nav.classList.remove('open');
+            document.getElementById('mobile-header').classList.remove('nav-open');
+            document.documentElement.classList.remove('lock-scroll');
+        }
+        else{
+            document.documentElement.classList.add('lock-scroll');
+            document.getElementById('mobile-header').classList.add('nav-open');
+            nav.classList.add('open');
+        }
+    }
+    else if(e.target.closest('.theme-switch-btn')){
+        themeSwitch();
+    }
+});
+</script>
+
+        <html><head><link rel="stylesheet" href="/file-assets/index.css">
+<style>
+  /* Reset website .card styles that conflict with xftp bundle */
+  #app .card { cursor: default; }
+  #app .card,
+  #app .card > div { transition: unset; height: auto; }
+  #app .card > div > * { opacity: unset; max-height: unset; transform: unset; transition: unset; }
+
+  /* Align xftp bundle with website design */
+  #app { font-family: inherit; color: #3F484B; max-width: 600px; width: 100%; margin: 0 auto; padding: 0; }
+  #app .card { background: transparent; box-shadow: none; padding: 0; border-radius: 0; }
+  #app .card > h1 { display: none; }
+  .dark #app h1 { color: #fff; }
+  #app .drop-zone { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; }
+  #app .drop-zone.drag-over { border-color: #0053D0; background: #DBEEFF; }
+  #app .btn { background: #0053D0; border-radius: 34px; padding: 12px 32px; font-size: .9rem; font-weight: 600; }
+  #app .btn:hover { background: #1661D1; }
+  #app .btn-secondary { background: #6b7280; border-radius: 34px; }
+  #app .hint { color: #6b7280; }
+  #app .link-row input { border-radius: 8px; border-color: #c5d3de; }
+  #app .security-note { background: #ffffff; border-radius: 12px; color: #3F484B; }
+  #app .security-note a { color: #0197FF; }
+  #app .success { color: #0053D0; }
+
+  .dark #app { color: #e5e7eb; }
+  .dark #app .card { background: transparent; box-shadow: none; }
+  .dark #app .drop-zone { border-color: #374151; }
+  .dark #app .drop-zone.drag-over { border-color: #70F0F9; background: #1B325C; }
+  .dark #app .btn { background: #70F0F9; color: #000832; }
+  .dark #app .btn:hover { background: #66D9E2; }
+  .dark #app .link-row input { border-color: #374151; background: #071C46; color: #e5e7eb; }
+  .dark #app .security-note { background: #0B2A59; color: #d1d5db; }
+  .dark #app .security-note a { color: #70F0F9; }
+  .dark #app .success { color: #70F0F9; }
+
+  #app #upload-error { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; text-align: center; }
+  .dark #app #upload-error { border-color: #374151; }
+
+  #app .stage > .btn { margin-top: 20px; }
+  #app .security-note { margin-top: 20px; }
+  #app .drop-zone .btn { margin: 10px 0 16px; }
+
+  /* Protocol overlay: image fixed, text scrolls natively */
+  /* Push popup below navbar at all widths */
+  #xftp-protocol { padding-top: 70px; }
+  #xftp-protocol .overlay-card {
+    display: flex;
+    flex-direction: column;
+    position: relative;
+    overflow: hidden;
+  }
+  @media (min-width: 768px) {
+    #xftp-protocol .overlay-card { max-height: min(660px, 100%); }
+  }
+  #xftp-protocol .overlay-card > h1 {
+    flex-shrink: 0;
+    padding-bottom: 16px;
+    margin-bottom: 0;
+    z-index: 1;
+  }
+  @media (min-width: 1024px) and (max-height: 750px) {
+    #xftp-protocol .overlay-card > h1 {
+      font-size: 22px;
+    }
+  }
+  /* .flex is the full-width scroll container */
+  #xftp-protocol .overlay-card > .flex {
+    flex: 1;
+    min-height: 0;
+    overflow-y: auto;
+    scrollbar-width: thin;
+    scrollbar-color: #c5d3de transparent;
+  }
+  .dark #xftp-protocol .overlay-card > .flex {
+    scrollbar-color: #374151 transparent;
+  }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar { width: 6px; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-track { background: transparent; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #c5d3de; border-radius: 3px; }
+  .dark #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #374151; }
+  /* Desktop: text stays left, image fixed on right */
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card > .flex > div:first-child {
+      max-width: 50%;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child {
+      position: absolute;
+      right: 56px;
+      top: 0;
+      bottom: 0;
+      left: 55%;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      pointer-events: none;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child > div {
+      height: 100%;
+      padding: 40px 0;
+      box-sizing: border-box;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child img {
+      height: 100%;
+    }
+  }
+  #xftp-protocol .close-overlay-btn {
+    position: absolute;
+    top: 24px;
+    right: 24px;
+    cursor: pointer;
+    z-index: 3;
+    fill: #606C71;
+  }
+  .dark #xftp-protocol .close-overlay-btn { fill: #e5e7eb; }
+  /* Scroll fade: gradient over text area only, hidden at bottom */
+  #xftp-protocol .overlay-card::after {
+    content: '';
+    position: absolute;
+    bottom: 40px;
+    left: 24px;
+    right: 24px;
+    height: 48px;
+    background: linear-gradient(rgba(255,255,255,0), #fff);
+    pointer-events: none;
+    z-index: 2;
+    transition: opacity 0.2s;
+  }
+  .dark #xftp-protocol .overlay-card::after {
+    background: linear-gradient(rgba(7,28,70,0), #071C46);
+  }
+  @media (min-width: 640px) {
+    #xftp-protocol .overlay-card::after { bottom: 56px; left: 56px; right: 56px; }
+  }
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card::after { right: 55%; }
+  }
+  #xftp-protocol.scrolled-bottom .overlay-card::after { opacity: 0; }
+  #xftp-protocol .overlay-card.flex,
+  #xftp-protocol.flex .overlay-card { animation: overlaySlideIn 0.25s ease-out; }
+  @keyframes overlaySlideIn {
+    from { opacity: 0; transform: scale(0.95) translateY(10px); }
+    to { opacity: 1; transform: scale(1) translateY(0); }
+  }
+  #xftp-protocol.overlay-closing { animation: overlayFadeOut 0.2s ease-in forwards; }
+  #xftp-protocol.overlay-closing .overlay-card { animation: overlaySlideOut 0.2s ease-in forwards; }
+  @keyframes overlayFadeOut {
+    from { opacity: 1; }
+    to { opacity: 0; }
+  }
+  @keyframes overlaySlideOut {
+    from { opacity: 1; transform: scale(1) translateY(0); }
+    to { opacity: 0; transform: scale(0.95) translateY(10px); }
+  }
+
+  .file-proto-link {
+    font-size: 1.25rem;
+    font-weight: 600;
+    background: linear-gradient(90deg, #001aa7 0%, #0095e7 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+    text-decoration: none;
+  }
+  .dark .file-proto-link {
+    background: linear-gradient(90deg, #019bfe 0%, #64fdff 58%, #c8feff 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+  }
+
+</style>
+
+</head><body><section class="bg-secondary-bg-light dark:bg-primary-bg-dark py-10 mt-[66px] px-5">
+  <div class="container flex flex-col items-center mx-auto">
+    <noscript>
+      <p class="text-center text-grey-black dark:text-white py-10">
+        JavaScript is required for file transfer.
+      </p>
+    </noscript>
+    <h1 class="text-[38px] text-center font-bold text-active-blue mb-8">SimpleX File Transfer</h1>
+    <div id="app" data-xftp-app="" data-no-hashchange="" class="w-full">
+      <div class="card">
+        <div class="drop-zone">
+          <p>Drag &amp; drop a file here</p>
+          <p class="hint">or</p>
+          <span class="btn">Choose file</span>
+          <p class="hint">Max 100 MB - <a href="#join-simplex">SimpleX Chat app</a> supports files up to 1 GB</p>
+        </div>
+      </div>
+    </div>
+    <template id="dl-placeholder">
+      <div class="card">
+        <h1>SimpleX File Transfer</h1>
+        <div class="stage">
+          <p>File available</p>
+          <button class="btn">Download</button>
+          <div class="security-note">
+            <p>This file is encrypted - data routers never see file contents, name or size.</p>
+            <p>The encryption key is in the link’s hash fragment - it is never sent to any server.</p>
+            <p>For better security, use <a href="https://simplex.chat/download">SimpleX Chat</a> app.</p>
+          </div>
+        </div>
+      </div>
+    </template>
+    <script>if(location.hash.length>50){var a=document.getElementById("app"),t=document.getElementById("dl-placeholder");if(a&&t)a.replaceChildren(t.content.cloneNode(true))}</script>
+    <script type="module" src="/file-assets/index.js"></script>
+
+    <p class="text-base text-center text-grey-black dark:text-white mt-10 max-w-[600px]">Send files securely with <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span> — no accounts, no tracking.</p>
+    <a href="javascript:void(0)" data-show-overlay="xftp-protocol" class="open-overlay-btn file-proto-link mt-3 block text-center">Learn more about XFTP protocol</a>
+  </div>
+</section>
+
+<section class="bg-primary-bg-light dark:bg-secondary-bg-dark py-[90px] px-5">
+  <div class="container flex flex-col items-center mx-auto text-center">
+    <h2 class="text-[35px] leading-[45px] md:text-[45px] md:leading-[55px] text-grey-black dark:text-white font-bold mb-5">
+      Get SimpleX Chat — the most secure &amp; private messenger
+    </h2>
+    <p class="text-base text-grey-black dark:text-white mb-14 max-w-[600px]">
+      The file transfer you just used uses the same data routing protocol as SimpleX Chat. The app has end-to-end encrypted messaging, voice and video calls, groups, and sending files. No account. No phone. No email. No user profile IDs.
+    </p>
+    <div class="flex items-center justify-center gap-4 flex-wrap">
+      <a href="https://apps.apple.com/us/app/simplex-chat/id1605771084" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apple_store.svg"></a>
+      <a href="https://play.google.com/store/apps/details?id=chat.simplex.app" target="_blank"><img class="h-[40px] w-auto" src="/img/new/google_play.svg"></a>
+      <a href="/fi/fdroid"><img class="h-[40px] w-auto" src="/img/new/f_droid.svg"></a>
+      <a href="https://testflight.apple.com/join/DWuT2LQu" target="_blank"><img class="h-[40px] w-auto" src="/img/new/testflight.png"></a>
+      <a href="https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-aarch64.apk" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apk_icon.png"></a>
+    </div>
+  </div>
+</section>
+
+
+  
+    
+    <div id="xftp-protocol" data-scroll-to="" class="overlay hidden fixed top-0 left-0 bottom-0 right-0 before:absolute before:w-full before:h-full bg-transparent before:bg-secondary-bg-light dark:before:bg-primary-bg-dark before:opacity-90 items-center justify-center p-3 md:p-10 z-[10000]">
+        <div class="overlay-card w-full md:w-fit md:max-w-[1276px] bg-white dark:bg-card-bg-dark opacity-100 h-full md:h-fit md:max-h-[660px] z-[10001] rounded-md shadow-[0px_3px_12px_rgba(0,0,0,0.2)] p-6 py-10 sm:p-14 overflow-auto scale-100">
+            <h1 class="text-3xl font-bold text-active-blue mb-6 ">XFTP protocol: the most secure file transfer</h1>
+            <div class="flex flex-col-reverse lg:flex-row gap-10 justify-between">
+                
+                    <div class="lg:max-w-[448px]">
+                        <div class="text-grey-black dark:text-white flex flex-col gap-6 text-base">
+                            <div>
+  <h3 class="font-bold text-lg mb-2">No account required</h3>
+  <p>Each file fragment uses a new random key. Data routers have no "users" or "files" - they transfer encrypted file fragments of fixed sizes.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Triple-encrypted in your browser</h3>
+  <p>File encryption key is present only in the URL hash fragment - your browser never sends it to a server. There are 3 encryption layers: TLS transport, per-recipient encryption (unique ephemeral key per transfer), and file <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span>.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Independent data routers</h3>
+  <p>When file is split to fragments, it is sent via network routers operated by independent parties. No operator can see the actual file size or name. Even if a router is compromised, it can only see encrypted fragments of fixed size. File fragments are cached by network routers for approximately 48 hours.</p>
+</div>
+<p class="mt-4">
+  <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/xftp.md" target="_blank" rel="noopener" class="text-active-blue hover:underline">
+    Read the XFTP protocol specification →
+  </a>
+</p>
+
+                        </div>
+                    </div>
+                
+
+                
+                    <div class="max-w-[448px]">
+                        <div class="flex items-center justify-center">
+                            <img class="w-full max-w-[448px] min-w-[300px] dark:hidden" src="/img/new/xftp-protocol.svg" alt="">
+                            <img class="w-full max-w-[448px] min-w-[300px] hidden dark:block" src="/img/new/xftp-protocol-dark.svg" alt="">
+                        </div>
+                    </div>
+                
+            </div>
+
+            <svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+                <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z"></path>
+            </svg>
+        </div>
+    </div>
+
+
+
+<script>
+  window.__XFTP_I18N__ = {
+    "title": "SimpleX File Transfer",
+    "dropZone": "Drag & drop a file here",
+    "dropZoneHint": "or",
+    "chooseFile": "Choose file",
+    "maxSizeHint": "Max 100 MB - <a href=\"#join-simplex\">SimpleX Chat app</a> supports files up to 1 GB",
+    "encrypting": "Encrypting…",
+    "uploading": "Uploading…",
+    "cancel": "Cancel",
+    "fileUploaded": "File uploaded",
+    "copy": "Copy",
+    "copied": "Copied!",
+    "share": "Share",
+    "expiryHint": "Files are typically available for 48 hours.",
+    "securityNote1": "Your file was encrypted in the browser - data routers never see file contents, name or size.",
+    "securityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "securityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "retry": "Retry",
+    "downloading": "Downloading…",
+    "decrypting": "Decrypting…",
+    "downloadComplete": "Download complete",
+    "download": "Download",
+    "fileTooLarge": "File too large (%size%). Maximum is 100 MB. The <a href=\"#join-simplex\">SimpleX app</a> supports files up to 1 GB.",
+    "fileEmpty": "File is empty.",
+    "invalidLink": "Invalid or corrupted link.",
+    "initError": "Failed to initialize: %error%",
+    "fileAvailable": "File available (~%size%)",
+    "dlSecurityNote1": "This file is encrypted - data routers never see file contents, name or size.",
+    "dlSecurityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "dlSecurityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "workersRequired": "Web Workers required — update your browser"
+  }
+</script>
+
+<script>
+  // Intercept close for #xftp-protocol to add fade-out animation
+  document.getElementById('xftp-protocol')?.addEventListener('click', function(e) {
+    if (e.target.closest('.close-overlay-btn') || (e.target.closest('.overlay') && !e.target.closest('.overlay-card'))) {
+      e.stopPropagation();
+      var el = document.getElementById('xftp-protocol');
+      el.classList.add('overlay-closing');
+      el.addEventListener('animationend', function handler() {
+        el.removeEventListener('animationend', handler);
+        el.classList.remove('flex', 'overlay-closing');
+        el.classList.add('hidden');
+        document.body.classList.remove('lock-scroll');
+        history.replaceState(null, null, ' ');
+      });
+    }
+  }, true);
+
+  // Hide scroll fade gradient when text bottom is visible (works with column-reverse)
+  var scrollArea = document.querySelector('#xftp-protocol .overlay-card > .flex');
+  if (scrollArea) {
+    var textCol = scrollArea.querySelector(':scope > div:first-child > div');
+    function checkScrollBottom() {
+      if (!textCol) return;
+      var scrollRect = scrollArea.getBoundingClientRect();
+      if (scrollRect.height === 0) return; // not laid out yet
+      var textBottom = textCol.getBoundingClientRect().bottom;
+      document.getElementById('xftp-protocol').classList.toggle('scrolled-bottom', textBottom <= scrollRect.bottom + 10);
+    }
+    scrollArea.addEventListener('scroll', checkScrollBottom);
+    new MutationObserver(function() {
+      if (!document.getElementById('xftp-protocol').classList.contains('hidden')) {
+        requestAnimationFrame(checkScrollBottom);
+      }
+    }).observe(document.getElementById('xftp-protocol'), { attributes: true, attributeFilter: ['class'] });
+  }
+</script>
+
+<div id="address-portability" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Address portability</h1><div class="overlay-content"><p>Similarly to <a href="https://en.wikipedia.org/wiki/Local_number_portability">phone number portability</a> (the ability of the customer to transfer the service to another provider without changing the number), the address portability means the ability of a communication service customer to change the service provider without changing the service address. Many <a href="#federated-network">federated networks</a> support SRV records to provide address portability, but allowing service users to set up their own domains for the addresses is not as commonly supported by the available server and client software as for email.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="federated-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Federated network</h1><div class="overlay-content"><p>Federated network is provided by several entities that agree upon the standards and operate the network collectively. This allows the users to choose their provider, that will hold their account, their messaging history and contacts, and communicate with other providers' servers on behalf of the user. The examples are email, XMPP, Matrix and Mastodon.</p><p>The advantage of that design is that there is no single organization that all users depend on, and the standards are more difficult to change, unless it benefits all users. There are several disadvantages: 1) the innovation is slower, 2) each user account still depends on a single organization, and in most cases can't move to another provider without changing their network address – there is no <a href="#address-portability">address portability</a>, 3) the security and privacy are inevitably worse than with the centralized networks.</p><p><a href="https://en.wikipedia.org/wiki/Federation_(information_technology)">Federation on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="anonymous-credentials" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Anonymous credentials</h1><div class="overlay-content"><p>The credential that allows proving something, e.g. the right to access some resource, without identifying the user. This credential can either be generated by a trusted party or by the user themselves and provided together with the request to create the resource. The first approach creates some centralized dependency in most cases. The second approach does not require any trust - this is used in SimpleX network to authorize access to the messaging queues.</p><p><a href="https://en.wikipedia.org/wiki/Digital_credential">Digital credential on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="blockchain" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Blockchain</h1><div class="overlay-content"><p>In a wide sense, blockchain means a sequence of blocks of data, where each block contains a cryptographic hash of the previous block, thus providing integrity to the whole chain. Blockchains are used in many communication and information storage systems to provide integrity and immutability of the data. For example, BluRay disks use blockchain. SimpleX messaging queues also use blockchain - each message includes the hash of the previous message, to ensure the integrity – if any message is modified it will be detected by the recipient when the next message is received. Blockchains are a subset of <a href="#merkle-directed-acyclic-graph">Merkle directed acyclic graphs</a>.</p><p>In a more narrow sense, particularly in media, blockchain is used to refer specifically to distributed ledger, where each record also includes the hash of the previous record, but the blocks have to be agreed by the participating peers using some <a href="https://en.wikipedia.org/wiki/Consensus_(computer_science)">consensus protocol</a>.</p><p><a href="https://en.wikipedia.org/wiki/Blockchain">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="merkle-directed-acyclic-graph" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Merkle directed acyclic graph</h1><div class="overlay-content"><p>Also known as Merkle DAG, a data structure based on a general graph structure where node contains the cryptographic hashes of the previous nodes that point to it. Merkle trees are a subset of Merkle DAGs - in this case each leaf contains a cryptographic hash of the parent.</p><p>This structure by design allows to verify the integrity of the whole structure by computing its hashes and comparing with the hashes included in the nodes, in the same way as with <a href="#blockchain">blockchain</a>.</p><p>The motivation to use DAG in distributed environments instead of a simpler linear blockchain is to allow concurrent additions, when there is no requirement for a single order of added items. Merkle DAG is used, for example, in <a href="https://en.wikipedia.org/wiki/InterPlanetary_File_System">IPFS</a> and will be used in decentralized SimpleX groups.</p><p><a href="https://en.wikipedia.org/wiki/Merkle_tree">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="break-in-recovery" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Break-in recovery</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="double-ratchet-algorithm" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Double ratchet algorithm</h1><div class="overlay-content"><p>It is used by two parties to exchange <a href="#end-to-end-encryption">end-to-end encrypted</a> messages. The parties will use some <a href="#key-agreement-protocol">key agreement protocol</a> to agree on the initial shared secret key.</p><p>Double Ratchet algorithm provides <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>. It is <a href="https://signal.org/docs/specifications/doubleratchet">designed by Signal</a>, and used in SimpleX Chat and many other secure messengers. Most experts consider it the state-of-the-art encryption protocol in message encryption.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="centralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Centralized network</h1><div class="overlay-content"><p>Centralized networks are provided or controlled by a single entity. The examples are Threema, Signal, WhatsApp and Telegram. The advantage of that design is that the provider can innovate faster, and has a centralized approach to security. But the disadvantage is that the provider can change or discontinue the service, and leak, sell or disclose in some other way all users' data, including who they are connected with.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="content-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Content padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="decentralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Decentralized network</h1><div class="overlay-content"><p>Decentralized network is often used to mean "the network based on decentralized blockchain". In its original meaning, decentralized network means that there is no central authority or any other point of centralization in the network, other than network protocols specification. The advantage of decentralized networks is that they are resilient to censorship and to the provider going out of business. The disadvantage is that they are often slower to innovate, and the security may be worse than with the centralized network.</p><p>The examples of decentralized networks are email, web, DNS, XMPP, Matrix, BitTorrent, etc. All these examples have a shared global application-level address space. Cryptocurrency blockchains not only have a shared address space, but also a shared state, so they are more centralized than email. Tor network also has a shared global address space, but also a central authority. SimpleX network does not have a shared application-level address space (it relies on the shared transport-level addresses - SMP relay hostnames or IP addresses), and it does not have any central authority or any shared state.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="defense-in-depth" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Defense in depth</h1><div class="overlay-content"><p>Originally, it is a military strategy that seeks to delay rather than prevent the advance of an attacker, buying time and causing additional casualties by yielding space.</p><p>In information security, defense in depth represents the use of multiple computer security techniques to help mitigate the risk of one component of the defense being compromised or circumvented. An example could be anti-virus software installed on individual workstations when there is already virus protection on the firewalls and servers within the same environment.</p><p>SimpleX network applies defense in depth approach to security by having multiple layers for the communication security and privacy:</p><ul>
+<li>double ratchet algorithm for <a href="#end-to-end-encryption">end-to-end encryption</a> with <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>,</li>
+<li>additional layer of end-to-end encryption for each messaging queue and another encryption layer of encryption from the server to the recipient inside TLS to prevent correlation by ciphertext,</li>
+<li>TLS with only strong ciphers allowed,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-server connection via server offline certificate verification,</li>
+<li>mitigation of replay attacks via signing over transport channel binding,</li>
+<li>multiple layers of <a href="#message-padding">message padding</a> to reduce efficiency of traffic analysis,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-client out-of-band channel when sending the invitation,</li>
+<li>rotation of delivery queues to reduce efficiency of traffic analysis,</li>
+<li>etc.</li>
+</ul><p><a href="https://en.wikipedia.org/wiki/Defence_in_depth">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="end-to-end-encryption" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">End-to-end encryption</h1><div class="overlay-content"><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><p>End-to-end encryption requires agreeing cryptographic keys between the sender and the recipient in a way that no eavesdroppers can access the agreed keys. See <a href="#key-agreement-protocol">key agreement protocol</a>. This key exchange can be compromised via <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>, particularly if key exchange happens via the same communication provider and no out-of-band channel is used to verify key exchange.</p><p><a href="https://en.wikipedia.org/wiki/End-to-end_encryption">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-compromise-security" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-compromise security</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="man-in-the-middle-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Man-in-the-middle attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="message-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Message padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="key-agreement-protocol" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key agreement protocol</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="tooltip-end-to-end-encryption" class="glossary-tooltip"><div class="tooltip-content"><h4 class="tooltip-title">End-to-end encryption</h4><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><button class="read-more-btn open-overlay-btn" data-show-overlay="end-to-end-encryption">Read more</button></div></div><div id="key-exchange" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key exchange</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="mitm-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">MITM attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="non-repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Non-repudiation</h1><div class="overlay-content">Non-repudiation</div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="onion-routing" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Onion routing</h1><div class="overlay-content"><p>A technique for anonymous communication over a computer network that uses multiple layers of message encryption, analogous to the layers of an onion. The encrypted data is transmitted through a series of network nodes called "onion routers," each of which "peels" away a single layer, revealing the data's next destination. The sender remains anonymous because each intermediary knows only the location of the immediately preceding and following nodes.</p><p>The most widely used onion network is <a href="https://en.wikipedia.org/wiki/Tor_(network)">Tor</a>.</p><p>Some elements of SimpleX network use similar ideas in their design - different addresses for the same resource used by different parties, and additional encryption layers. Currently though, SimpleX messaging protocol does not protect sender network address, as the relay server is chosen by the recipient. The delivery relays chosen by sender that are planned for the future would make SimpleX design closer to onion routing.</p><p><a href="https://en.wikipedia.org/wiki/Onion_routing">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="overlay-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Overlay network</h1><div class="overlay-content"><p>Nodes in the overlay network can be thought of as being connected by virtual or logical links, each of which corresponds to a path, perhaps through many physical links, in the underlying network. Tor, for example, is an overlay network on top of IP network, which in its turn is also an overlay network over some underlying physical network.</p><p>SimpleX Clients also form a network using SMP relays and IP or some other overlay network (e.g., Tor), to communicate with each other. SMP relays, on another hand, do not form a network.</p><p><a href="https://en.wikipedia.org/wiki/Overlay_network">Wikipedia</a></p><h1>Non-repudiation</h1><p>The property of the cryptographic or communication system that allows the recipient of the message to prove to any third party that the sender identified by some cryptographic key sent the message. It is the opposite to <a href="#repudiation">repudiation</a>. While in some context non-repudiation may be desirable (e.g., for contractually binding messages), in the context of private communications it may be undesirable.</p><p><a href="https://en.wikipedia.org/wiki/Non-repudiation">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Repudiation</h1><div class="overlay-content"><p>The property of the cryptographic or communication system that allows the sender of the message to plausibly deny having sent the message, because while the recipient can verify that the message was sent by the sender, they cannot prove it to any third party - the recipient has a technical ability to forge the same encrypted message. This is an important quality of private communications, as it allows to have the conversation that can later be denied, similarly to having a private face-to-face conversation.</p><p>See also <a href="#non-repudiation">non-repudiation</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="pairwise-pseudonymous-identifier" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Pairwise pseudonymous identifier</h1><div class="overlay-content"><p>Generalizing <a href="https://csrc.nist.gov/glossary/term/pairwise_pseudonymous_identifier">the definition</a> from NIST Digital Identity Guidelines, it is an opaque unguessable identifier generated by a service used to access a resource by only one party.</p><p>In the context of SimpleX network, these are the identifiers generated by SMP relays to access anonymous messaging queues, with a separate identifier (and access credential) for each accessing party: recipient, sender and and optional notifications subscriber. The same approach is used by XFTP relays to access file chunks, with separate identifiers (and access credentials) for sender and each recipient.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Peer-to-peer</h1><div class="overlay-content"><p>Peer-to-peer (P2P) is the network architecture when participants have equal rights and communicate directly via a general purpose transport or overlay network. Unlike client-server architecture, all peers in a P2P network both provide and consume the resources. In the context of messaging, P2P architecture usually means that the messages are sent between peers, without user accounts or messages being stored on any servers. Examples are Tox, Briar, Cwtch and many others.</p><p>The advantage is that the participants do not depend on any servers. There are <a href="./SIMPLEX.md#comparison-with-p2p9-messaging-protocols">multiple downsides</a> to that architecture, such as no asynchronous message delivery, the need for network-wide peer addresses, possibility of network-wide attacks, that are usually mitigated only by using a centralized authority. These disadvantages are avoided with <a href="#proxied-peer-to-peer">proxied P2P</a> architecture.</p><p><a href="https://en.wikipedia.org/wiki/Peer-to-peer">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="proxied-peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Proxied peer-to-peer</h1><div class="overlay-content"><p>Network topology of the communication system when peers communicate via proxies that do not form the network themselves. Such design is used in Pond, that has a fixed home server for each user, and in SimpleX, that uses multiple relays providing temporary connections.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="perfect-forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Perfect forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-cryptography" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum cryptography</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-hybrid-crypto" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum hybrid crypto</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="recovery-from-compromise" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Recovery from compromise</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="user-identity" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">User identity</h1><div class="overlay-content"><p>In a communication system it refers to anything that uniquely identifies the users to the network. Depending on the communication network, it can be a phone number, email address, username, public key or a random opaque identifier. Most messaging networks rely on some form of user identity. SimpleX appears to be the only messaging network that does not rely on any kind of user identity - see <a href="https://en.wikipedia.org/wiki/Comparison_of_instant_messaging_protocols">this comparison</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div></body></html>
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+                            SimpleX bots API
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+                            </svg>
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+                    </div>
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+                    <div class="flex gap-2 justify-center">
+                        <a href="https://github.com/simplex-chat" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 41 41" fill="none" xmlns="http://www.w3.org/2000/svg">
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+                            </svg>
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+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 512 512" fill="none" xmlns="http://www.w3.org/2000/svg">
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+    </div>
+</section>
+
+
+        <script src="/js/swiper-bundle.min.js"></script>
+        <script src="/js/script.js"></script>
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--- a/fi/index.html
+++ b/fi/index.html
@@ -153,6 +153,8 @@
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index 98f401a347..f8118c0594 100644
--- a/fi/invitation/index.html
+++ b/fi/invitation/index.html
@@ -133,6 +133,8 @@
                 </a>
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index 35728fa22e..bca30e909e 100644
--- a/fi/messaging/index.html
+++ b/fi/messaging/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
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index e2b7eb28ac..15a75c8637 100644
--- a/fi/old/index.html
+++ b/fi/old/index.html
@@ -133,6 +133,8 @@
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index c84b5e30f6..a1bbefc85b 100644
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+++ b/fi/why/index.html
@@ -133,6 +133,8 @@
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B2(l1,i1,h){if(l1=l1>>>0,h=h>>>0,l1+h>D2.length)throw"trap: invalid memory.fill";D2.fill(i1,l1,l1+h)}function c2(){throw new Error("abort")}function b0(l1,i1,h){D2.copyWithin(l1,i1,i1+h)}function Ut(l1){var i1=new ArrayBuffer(50331648),h=new Int8Array(i1),Q2=new Int16Array(i1),n=new Int32Array(i1),s=new Uint8Array(i1),M2=new Uint16Array(i1),p1=new Uint32Array(i1),E0=Math.imul,U1=Math.clz32,R6=l1.a,s6=R6.a,F6=R6.b,xt=R6.c,Vt=R6.d,F=106768,Fr=0,Kr=0,p=0;function o6(_,e){var r=0,A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0,x=0,z=0,$=0,J=0,A0=0,n0=0,t0=0,_0=0,s0=0,o0=0,B0=0,u0=0,l0=0,j0=0,v0=0,f0=0,c0=0,q0=0,P0=0,m0=0,C0=0,M0=0,I0=0,G0=0,d0=0,L0=0,F0=0,K0=0,N0=0,O0=0,V0=0,z0=0,$0=0,Z0=0,U0=0,x0=0,r2=0,A2=0,n2=0,t2=0,i2=0,s2=0,o2=0,h2=0,u2=0,k2=0,a2=0,g2=0,q2=0,P2=0,m2=0,I2=0,H2=0,N2=0,x2=0,V2=0;U0=s[e+40|0]|s[e+41|0]<<8|(s[e+42|0]<<16|s[e+43|0]<<24),r=s[e+44|0]|s[e+45|0]<<8|(s[e+46|0]<<16|s[e+47|0]<<24),r2=r,G0=s[e+104|0]|s[e+105|0]<<8|(s[e+106|0]<<16|s[e+107|0]<<24),r=s[e+108|0]|s[e+109|0]<<8|(s[e+110|0]<<16|s[e+111|0]<<24),A2=r,r=s[e+68|0]|s[e+69|0]<<8|(s[e+70|0]<<16|s[e+71|0]<<24),j0=s[e+64|0]|s[e+65|0]<<8|(s[e+66|0]<<16|s[e+67|0]<<24),L0=r,r=s[e+36|0]|s[e+37|0]<<8|(s[e+38|0]<<16|s[e+39|0]<<24),q2=r,C=r,O0=s[e+120|0]|s[e+121|0]<<8|(s[e+122|0]<<16|s[e+123|0]<<24),r=s[e+124|0]|s[e+125|0]<<8|(s[e+126|0]<<16|s[e+127|0]<<24),o2=r,r=s[e+92|0]|s[e+93|0]<<8|(s[e+94|0]<<16|s[e+95|0]<<24),H2=r,s2=s[e+88|0]|s[e+89|0]<<8|(s[e+90|0]<<16|s[e+91|0]<<24),l0=r,N0=s[e+80|0]|s[e+81|0]<<8|(s[e+82|0]<<16|s[e+83|0]<<24),r=s[e+84|0]|s[e+85|0]<<8|(s[e+86|0]<<16|s[e+87|0]<<24),t2=r,v0=r,F0=s[_+16|0]|s[_+17|0]<<8|(s[_+18|0]<<16|s[_+19|0]<<24),z0=s[_+52|0]|s[_+53|0]<<8|(s[_+54|0]<<16|s[_+55|0]<<24),r=z0+C|0,V0=s[_+48|0]|s[_+49|0]<<8|(s[_+50|0]<<16|s[_+51|0]<<24),$0=s[e+32|0]|s[e+33|0]<<8|(s[e+34|0]<<16|s[e+35|0]<<24),B0=V0+$0|0,r=(s[_+20|0]|s[_+21|0]<<8|(s[_+22|0]<<16|s[_+23|0]<<24))+(V0>>>0>B0>>>0?r+1|0:r)|0,A=B0,B0=B0+F0|0,F0=A>>>0>B0>>>0?r+1|0:r,r=F0+r2|0,x0=B0+U0|0,r=x0>>>0<B0>>>0?r+1|0:r,K0=x0,x0=r,B0=D(B0^(s[_+80|0]|s[_+81|0]<<8|(s[_+82|0]<<16|s[_+83|0]<<24))^-79577749,F0^(s[_+84|0]|s[_+85|0]<<8|(s[_+86|0]<<16|s[_+87|0]<<24))^528734635,32),r=p,k2=r,r=r+1013904242|0,F0=B0,B0=B0-23791573|0,r=B0>>>0<4271175723?r+1|0:r,q0=r,z0=D(B0^V0,r^z0,40),V0=z0+K0|0,r=x0,x0=p,r=r+x0|0,l=V0,j=l>>>0<z0>>>0?r+1|0:r,V0=D(F0^l,k2^j,48),s0=p,r=q0+s0|0,v=V0,V0=B0+v|0,r=V0>>>0<B0>>>0?r+1|0:r,g=V0,T=r,r=D(z0^g,x0^r,1),B0=p,V0=r,q0=B0,x0=s[e+24|0]|s[e+25|0]<<8|(s[e+26|0]<<16|s[e+27|0]<<24),r=s[e+28|0]|s[e+29|0]<<8|(s[e+30|0]<<16|s[e+31|0]<<24),k2=r,Z0=s[_+8|0]|s[_+9|0]<<8|(s[_+10|0]<<16|s[_+11|0]<<24),z0=s[e+16|0]|s[e+17|0]<<8|(s[e+18|0]<<16|s[e+19|0]<<24),F0=s[_+40|0]|s[_+41|0]<<8|(s[_+42|0]<<16|s[_+43|0]<<24),B0=z0+F0|0,P2=s[e+20|0]|s[e+21|0]<<8|(s[e+22|0]<<16|s[e+23|0]<<24),N2=s[_+44|0]|s[_+45|0]<<8|(s[_+46|0]<<16|s[_+47|0]<<24),r=P2+N2|0,r=(s[_+12|0]|s[_+13|0]<<8|(s[_+14|0]<<16|s[_+15|0]<<24))+(B0>>>0<F0>>>0?r+1|0:r)|0,A=B0,B0=B0+Z0|0,K0=A>>>0>B0>>>0?r+1|0:r,r=k2+K0|0,Z0=B0+x0|0,r=Z0>>>0<B0>>>0?r+1|0:r,A=D(B0^(s[_+72|0]|s[_+73|0]<<8|(s[_+74|0]<<16|s[_+75|0]<<24))^725511199,K0^(s[_+76|0]|s[_+77|0]<<8|(s[_+78|0]<<16|s[_+79|0]<<24))^-1694144372,32),B0=p,z=B0,t=A-2067093701|0,t0=z-((A>>>0<2067093701)+1150833018|0)|0,y=D(F0^t,N2^t0,40),B0=y+Z0|0,o0=p,r=o0+r|0,m=B0,x=m>>>0<y>>>0?r+1|0:r,r=x+q0|0,B0=m+V0|0,r=(m>>>0>B0>>>0?r+1|0:r)+v0|0,i=B0,B0=B0+N0|0,F0=i>>>0>B0>>>0?r+1|0:r,r=F0+l0|0,l0=B0+s2|0,r=l0>>>0<B0>>>0?r+1|0:r,A0=l0,B=r,f=V0,h2=q0,q0=B0,K0=F0,V0=s[e+8|0]|s[e+9|0]<<8|(s[e+10|0]<<16|s[e+11|0]<<24),r=s[e+12|0]|s[e+13|0]<<8|(s[e+14|0]<<16|s[e+15|0]<<24),B0=r,r=s[_|0]|s[_+1|0]<<8|(s[_+2|0]<<16|s[_+3|0]<<24),N2=r,F0=s[_+4|0]|s[_+5|0]<<8|(s[_+6|0]<<16|s[_+7|0]<<24),x2=F0,v0=r,a2=s[e+4|0]|s[e+5|0]<<8|(s[e+6|0]<<16|s[e+7|0]<<24),o=s[_+36|0]|s[_+37|0]<<8|(s[_+38|0]<<16|s[_+39|0]<<24),r=a2+o|0,l0=s[_+32|0]|s[_+33|0]<<8|(s[_+34|0]<<16|s[_+35|0]<<24),F0=s[e|0]|s[e+1|0]<<8|(s[e+2|0]<<16|s[e+3|0]<<24),i=l0+F0|0,r=x2+(l0>>>0>i>>>0?r+1|0:r)|0,v0=i+v0|0,Z0=v0>>>0<i>>>0?r+1|0:r,r=Z0+B0|0,i=v0+V0|0,r=i>>>0<v0>>>0?r+1|0:r,i2=i,i=r,u=l0,r=_- 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O0=r,e=D(e^U0,r^$0,32),r=L0,L0=p,r=r+L0|0,r2=e+r2|0,r=r2>>>0<e>>>0?r+1|0:r,$0=r,o2=e,q0=r2,r2=D(j0^q0,r^k2,40),e=r2+i2|0,B=p,r=B+I2|0,r=O0+(e>>>0<r2>>>0?r+1|0:r)|0,e=e+U0|0,r=e>>>0<U0>>>0?r+1|0:r,O0=e,e=e^o2,o2=r,U0=D(e,r^L0,48),e=U0+q0|0,j=p,r=j+$0|0,q0=e,$0=e>>>0<U0>>>0?r+1|0:r,e=D(g^A2,M^q2,1),A2=e,r=p,k2=r,r=r+B0|0,e=e+V0|0,r=y+(e>>>0<V0>>>0?r+1|0:r)|0,j0=e+t2|0,r=j0>>>0<t2>>>0?r+1|0:r,B0=r,L0=D(u^j0,r^l,32),e=L0+A|0,A=p,r=A+o|0,t2=e,y=e^A2,A2=e>>>0<L0>>>0?r+1|0:r,V0=D(y,A2^k2,40),e=V0+l0|0,l0=p,r=l0+Z0|0,r=B0+(e>>>0<V0>>>0?r+1|0:r)|0,B0=e+j0|0,r=B0>>>0<j0>>>0?r+1|0:r,e=_,j0=B0^N2^q0,h[e|0]=j0,h[e+1|0]=j0>>>8,h[e+2|0]=j0>>>16,h[e+3|0]=j0>>>24,j0=r^x2^$0,h[e+4|0]=j0,h[e+5|0]=j0>>>8,h[e+6|0]=j0>>>16,h[e+7|0]=j0>>>24,L0=D(B0^L0,r^A,48),j0=L0+t2|0,t2=p,r=t2+A2|0,A2=j0>>>0<L0>>>0?r+1|0:r,r=A2^((s[e+20|0]|s[e+21|0]<<8|(s[e+22|0]<<16|s[e+23|0]<<24))^o2),B0=(s[e+16|0]|s[e+17|0]<<8|(s[e+18|0]<<16|s[e+19|0]<<24))^O0^j0,h[e+16|0]=B0,h[e+17|0]=B0>>>8,h[e+18|0]=B0>>>16,h[e+19|0]=B0>>>24,h[e+20|0]=r,h[e+21|0]=r>>>8,h[e+22|0]=r>>>16,h[e+23|0]=r>>>24,e=D(F0^a2,m^K,48),B0=p,O0=s[_+36|0]|s[_+37|0]<<8|(s[_+38|0]<<16|s[_+39|0]<<24),r=(s[_+32|0]|s[_+33|0]<<8|(s[_+34|0]<<16|s[_+35|0]<<24))^D(G0^z0,t^K0,1)^e,h[_+32|0]=r,h[_+33|0]=r>>>8,h[_+34|0]=r>>>16,h[_+35|0]=r>>>24,r=p^O0^B0,h[_+36|0]=r,h[_+37|0]=r>>>8,h[_+38|0]=r>>>16,h[_+39|0]=r>>>24,r=T+B0|0,O0=e+i|0,r=O0>>>0<e>>>0?r+1|0:r,e=_,G0=(s[e+28|0]|s[e+29|0]<<8|(s[e+30|0]<<16|s[e+31|0]<<24))^v0^r,B0=(s[e+24|0]|s[e+25|0]<<8|(s[e+26|0]<<16|s[e+27|0]<<24))^x0^O0,h[e+24|0]=B0,h[e+25|0]=B0>>>8,h[e+26|0]=B0>>>16,h[e+27|0]=B0>>>24,h[e+28|0]=G0,h[e+29|0]=G0>>>8,h[e+30|0]=G0>>>16,h[e+31|0]=G0>>>24,G0=s[e+44|0]|s[e+45|0]<<8|(s[e+46|0]<<16|s[e+47|0]<<24),e=U0^((s[e+40|0]|s[e+41|0]<<8|(s[e+42|0]<<16|s[e+43|0]<<24))^D(j0^V0,l0^A2,1)),h[_+40|0]=e,h[_+41|0]=e>>>8,h[_+42|0]=e>>>16,h[_+43|0]=e>>>24,e=j^(p^G0),h[_+44|0]=e,h[_+45|0]=e>>>8,h[_+46|0]=e>>>16,h[_+47|0]=e>>>24,j0=s[_+60|0]|s[_+61|0]<<8|(s[_+62|0]<<16|s[_+63|0]<<24),e=L0^((s[_+56|0]|s[_+57|0]<<8|(s[_+58|0]<<16|s[_+59|0]<<24))^D(q0^r2,B^$0,1)),h[_+56|0]=e,h[_+57|0]=e>>>8,h[_+58|0]=e>>>16,h[_+59|0]=e>>>24,e=t2^(p^j0),h[_+60|0]=e,h[_+61|0]=e>>>8,h[_+62|0]=e>>>16,h[_+63|0]=e>>>24,j0=s[_+52|0]|s[_+53|0]<<8|(s[_+54|0]<<16|s[_+55|0]<<24),e=N0^((s[_+48|0]|s[_+49|0]<<8|(s[_+50|0]<<16|s[_+51|0]<<24))^D(O0^P2,r^G,1)),h[_+48|0]=e,h[_+49|0]=e>>>8,h[_+50|0]=e>>>16,h[_+51|0]=e>>>24,e=f^(p^j0),h[_+52|0]=e,h[_+53|0]=e>>>8,h[_+54|0]=e>>>16,h[_+55|0]=e>>>24}function PA(_,e,r,A,t,i,o){var y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0,x=0,z=0,$=0,J=0,A0=0,n0=0,t0=0,_0=0,s0=0,o0=0,B0=0,u0=0,l0=0,j0=0,v0=0,f0=0,c0=0,q0=0,P0=0,m0=0,C0=0,M0=0,I0=0,G0=0,d0=0,L0=0,F0=0,K0=0,N0=0,O0=0,V0=0,z0=0,$0=0,Z0=0,U0=0,x0=0,r2=0,A2=0,n2=0,t2=0,i2=0,s2=0,o2=0,h2=0,u2=0,k2=0,a2=0,g2=0,q2=0,P2=0,m2=0,I2=0,H2=0,N2=0,x2=0,V2=0,o1=0,y1=0,g1=0,c1=0,q1=0,Q1=0,G1=0,d1=0,L1=0,X1=0,Br=0,Cr=0,Hr=0,Yr=0,Qr=0,q6=0,Se=0,Ie=0,Ce=0,He=0,Ye=0;return n0=F-560|0,F=n0,l=n0+352|0,pr(l),o&&J2(l,39696,34,0),xr(n0+288|0,i,32,0),f=n0+352|0,J2(f,n0+320|0,32,0),J2(f,r,A,t),T=n0+224|0,k1(f,T),B=i,M=s[i+32|0]|s[i+33|0]<<8|(s[i+34|0]<<16|s[i+35|0]<<24),G=s[i+36|0]|s[i+37|0]<<8|(s[i+38|0]<<16|s[i+39|0]<<24),j=s[i+40|0]|s[i+41|0]<<8|(s[i+42|0]<<16|s[i+43|0]<<24),y=s[i+44|0]|s[i+45|0]<<8|(s[i+46|0]<<16|s[i+47|0]<<24),l=s[i+48|0]|s[i+49|0]<<8|(s[i+50|0]<<16|s[i+51|0]<<24),i=s[i+52|0]|s[i+53|0]<<8|(s[i+54|0]<<16|s[i+55|0]<<24),v=s[B+60|0]|s[B+61|0]<<8|(s[B+62|0]<<16|s[B+63|0]<<24),B=s[B+56|0]|s[B+57|0]<<8|(s[B+58|0]<<16|s[B+59|0]<<24),h[_+56|0]=B,h[_+57|0]=B>>>8,h[_+58|0]=B>>>16,h[_+59|0]=B>>>24,h[_+60|0]=v,h[_+61|0]=v>>>8,h[_+62|0]=v>>>16,h[_+63|0]=v>>>24,h[_+48|0]=l,h[_+49|0]=l>>>8,h[_+50|0]=l>>>16,h[_+51|0]=l>>>24,h[_+52|0]=i,h[_+53|0]=i>>>8,h[_+54|0]=i>>>16,h[_+55|0]=i>>>24,h[_+40|0]=j,h[_+41|0]=j>>>8,h[_+42|0]=j>>>16,h[_+43|0]=j>>>24,h[_+44|0]=y,h[_+45|0]=y>>>8,h[_+46|0]=y>>>16,h[_+47|0]=y>>>24,h[_+32|0]=M,h[_+33|0]=M>>>8,h[_+34|0]=M>>>16,h[_+35|0]=M>>>24,h[_+36|0]=G,h[_+37|0]=G>>>8,h[_+38|0]=G>>>16,h[_+39|0]=G>>>24,er(T),Nr(n0,T),jr(_,n0),pr(f),o&&J2(f,39696,34,0),i=n0+352|0,J2(i,_,64,0),J2(i,r,A,t),g=n0+160|0,k1(i,g),er(g),h[n0+288|0]=s[n0+288|0]&248,h[n0+319|0]=s[n0+319|0]&63|64,d=n0+288|0,r=d,A=s[r+23|0],j0=s[r+21|0]|s[r+22|0]<<8|A<<16&2031616,v0=(s[g+28|0]|s[g+29|0]<<8|(s[g+30|0]<<16|s[g+31|0]<<24))>>>7|0,j=q(j0,0,v0,0),l=p,r=s[g+27|0],A=0,y=s[g+23|0]|s[g+24|0]<<8|(s[g+25|0]<<16|s[g+26|0]<<24),i=r<<8|y>>>24,t=s[g+28|0],r=0,t=t<<16,G=r|A,A=t|i,f0=((G&3)<<30|A>>>2)&2097151,o=s[d+23|0]|s[d+24|0]<<8|(s[d+25|0]<<16|s[d+26|0]<<24),c0=o>>>5&2097151,r=q(f0,0,c0,0),i=r+j|0,A=p+l|0,t=r>>>0>i>>>0?A+1|0:A,A=s[g+23|0],q0=A<<16&2031616|(s[g+21|0]|s[g+22|0]<<8),P0=(s[d+28|0]|s[d+29|0]<<8|(s[d+30|0]<<16|s[d+31|0]<<24))>>>7|0,r=q(q0,0,P0,0),A=r+i|0,t=p+t|0,l=A,i=r>>>0>A>>>0?t+1|0:t,r=s[d+27|0],t=0,o=r<<8|o>>>24,r=s[d+28|0],A=0,r=r<<16,t=A|t,A=r|o,m0=((t&3)<<30|A>>>2)&2097151,C0=y>>>5&2097151,r=q(m0,0,C0,0),t=r+l|0,A=p+i|0,B=t,i=r>>>0>t>>>0?A+1|0:A,y=q(c0,0,C0,0),l=p,r=s[d+19|0],A=0,$=s[d+15|0]|s[d+16|0]<<8|(s[d+17|0]<<16|s[d+18|0]<<24),o=r<<8|$>>>24,r=s[d+20|0],r=r<<16,t=A|A,A=r|o,M0=(t&7)<<29|A>>>3,G=t>>>3|0,A=q(M0,G,v0,0),t=A+y|0,r=p+l|0,r=A>>>0>t>>>0?r+1|0:r,A=q(j0,u,f0,u),o=A+t|0,t=p+r|0,y=o,A=A>>>0>y>>>0?t+1|0:t,r=s[g+19|0],t=0,U=s[g+15|0]|s[g+16|0]<<8|(s[g+17|0]<<16|s[g+18|0]<<24),l=r<<8|U>>>24,o=s[g+20|0],r=0,o=o<<16,j=r|t,t=o|l,I0=(j&7)<<29|t>>>3,G0=j>>>3|0,r=q(I0,G0,P0,0),t=r+y|0,A=p+A|0,A=r>>>0>t>>>0?A+1|0:A,r=q(m0,u,q0,u),T=r+t|0,A=p+A|0,A=r>>>0>T>>>0?A+1|0:A,M=A,r=A-((T>>>0<4293918720)-1|0)|0,X=r,A=r>>>21|0,j=T- -1048576|0,r=(r&2097151)<<11|j>>>21,B=r+B|0,t=A+i|0,t=r>>>0>B>>>0?t+1|0:t,y=t,r=t-((B>>>0<4293918720)-1|0)|0,O=r,l=B- -1048576|0,v=(r&2097151)<<11|l>>>21,o=r>>>21|0,r=q(P0,0,C0,0),A=p,t=r,r=q(v0,0,c0,0),t=t+r|0,A=p+A|0,A=r>>>0>t>>>0?A+1|0:A,r=t,t=q(f0,u,m0,u),K=r+t|0,r=p+A|0,r=t>>>0>K>>>0?r+1|0:r,t=K- -1048576|0,A=t&-2097152,f=K-A|0,i=r-((K>>>0<4293918720)-1|0)|0,A=(r-((i&131071)+(A>>>0>K>>>0)|0)|0)+o|0,r=v+f|0,A=r>>>0<f>>>0?A+1|0:A,I2=A,H2=r,f=q(r,A,470296,0),v=p,A=q(v0,0,m0,u),r=p,o=A,A=q(f0,u,P0,0),o=o+A|0,r=p+r|0,A=A>>>0>o>>>0?r+1|0:r,r=i>>>21|0,i=(i&2097151)<<11|t>>>21,o=i+o|0,t=r+A|0,t=i>>>0>o>>>0?t+1|0:t,i=t-((o>>>0<4293918720)-1|0)|0,_0=i,t0=o- -1048576|0,A=t0&-2097152,r=o-A|0,o=t-((i&131071)+(A>>>0>o>>>0)|0)|0,N2=o,t=l&-2097152,A=B-t|0,x2=A,i=y-((t>>>0>B>>>0)+O|0)|0,V2=i,o1=r,t=q(r,o,666643,0),o=t+f|0,r=p+v|0,r=t>>>0>o>>>0?r+1|0:r,t=q(A,i,654183,0),i=t+o|0,A=p+r|0,m=i,l=t>>>0>i>>>0?A+1|0:A,r=j&-2097152,K=T-r|0,X=M-((r>>>0>T>>>0)+X|0)|0,A=q(f0,u,M0,G),t=p,r=A,d0=$>>>6&2097151,A=q(d0,0,v0,0),i=r+A|0,r=p+t|0,r=A>>>0>i>>>0?r+1|0:r,A=q(c0,0,q0,u),i=A+i|0,t=p+r|0,t=A>>>0>i>>>0?t+1|0:t,r=q(j0,u,C0,0),i=r+i|0,A=p+t|0,A=r>>>0>i>>>0?A+1|0:A,L0=U>>>6&2097151,t=q(P0,0,L0,0),i=t+i|0,r=p+A|0,r=t>>>0>i>>>0?r+1|0:r,t=q(m0,u,I0,G0),i=t+i|0,A=p+r|0,T=i,o=t>>>0>i>>>0?A+1|0:A,r=s[d+14|0],A=0,M=s[d+10|0]|s[d+11|0]<<8|(s[d+12|0]<<16|s[d+13|0]<<24),i=r<<8|M>>>24,t=s[d+15|0],r=0,t=t<<16,A=r|A,r=t|i,F0=((A&1)<<31|r>>>1)&2097151,A=q(F0,0,v0,0),r=p,t=A,A=q(f0,u,d0,0),t=t+A|0,r=p+r|0,r=A>>>0>t>>>0?r+1|0:r,A=q(C0,0,M0,G),i=A+t|0,t=p+r|0,t=A>>>0>i>>>0?t+1|0:t,r=q(c0,0,I0,G0),i=r+i|0,A=p+t|0,A=r>>>0>i>>>0?A+1|0:A,r=q(j0,u,q0,u),t=r+i|0,A=p+A|0,j=t,i=r>>>0>t>>>0?A+1|0:A,r=s[g+14|0],A=0,B=s[g+10|0]|s[g+11|0]<<8|(s[g+12|0]<<16|s[g+13|0]<<24),y=r<<8|B>>>24,r=s[g+15|0],r=r<<16|y,A=A|A,K0=((A&1)<<31|r>>>1)&2097151,A=q(K0,0,P0,0),t=A+j|0,r=p+i|0,r=A>>>0>t>>>0?r+1|0:r,A=q(m0,u,L0,0),j=A+t|0,r=p+r|0,r=A>>>0>j>>>0?r+1|0:r,y=r,A=r-((j>>>0<4293918720)-1|0)|0,s0=A,r=A>>>21|0,f=j- -1048576|0,A=(A&2097151)<<11|f>>>21,O=A+T|0,t=r+o|0,t=A>>>0>O>>>0?t+1|0:t,v=t,A=t-((O>>>0<4293918720)-1|0)|0,J=A,r=A>>>21|0,T=O- 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-1048576|0,r=(r&2097151)<<11|o>>>21,v=r+B0|0,i=A+n0|0,r=r>>>0>v>>>0?i+1|0:i,A=q(t0,M,470296,0),i=A+B|0,t=p+t|0,t=A>>>0>i>>>0?t+1|0:t,A=o&-2097152,o=i-A|0,B=t-((A>>>0>i>>>0)+G|0)|0,A=q(t0,M,666643,0),t=j&-2097152,g=A+(l-t|0)|0,i=p+(u-((t>>>0>l>>>0)+X|0)|0)|0,i=A>>>0>g>>>0?i+1|0:i,t=i>>21,i=(i&2097151)<<11|g>>>21,o=i+o|0,A=t+B|0,A=i>>>0>o>>>0?A+1|0:A,i=A>>21,A=(A&2097151)<<11|o>>>21,B=A+v|0,t=r+i|0,r=B,t=r>>>0<A>>>0?t+1|0:t,A=t>>21,t=(t&2097151)<<11|r>>>21,X=t+o2|0,A=A+$0|0,A=t>>>0>X>>>0?A+1|0:A,t=A>>21,A=(A&2097151)<<11|X>>>21,G=A+O|0,t=t+f|0,t=A>>>0>G>>>0?t+1|0:t,A=t>>21,t=(t&2097151)<<11|G>>>21,v=t+t2|0,i=A+i2|0,i=t>>>0>v>>>0?i+1|0:i,t=i>>21,i=(i&2097151)<<11|v>>>21,l=i+x0|0,A=t+K|0,A=i>>>0>l>>>0?A+1|0:A,i=A>>21,A=(A&2097151)<<11|l>>>21,f=A+J|0,t=i+A0|0,t=A>>>0>f>>>0?t+1|0:t,A=t>>21,t=(t&2097151)<<11|f>>>21,u=t+$|0,A=A+d|0,A=t>>>0>u>>>0?A+1|0:A,t=A>>21,A=(A&2097151)<<11|u>>>21,j=A+L1|0,t=t+X1|0,t=A>>>0>j>>>0?t+1|0:t,A=t>>21,t=(t&2097151)<<11|j>>>21,B=t+d1|0,i=A+_0|0,A=m&-2097152,K=e-A|0,i=t>>>0>B>>>0?i+1|0:i,m=K+((i&2097151)<<11|B>>>21)|0,t=(T-((e>>>0<A>>>0)+n2|0)|0)+(i>>21)|0,t=m>>>0<K>>>0?t+1|0:t,K=(t&2097151)<<11|m>>>21,A=t>>21,T=A,e=q(K,A,666643,0),A=g&2097151,e=e+A|0,i=p,h[_|0]=e,i=e>>>0<A>>>0?i+1|0:i,h[_+1|0]=(i&255)<<24|e>>>8,A=o&2097151,o=q(K,T,470296,0)+A|0,t=p,t=A>>>0>o>>>0?t+1|0:t,g=(i&2097151)<<11|e>>>21,o=g+o|0,t=(i>>21)+t|0,t=o>>>0<g>>>0?t+1|0:t,h[_+4|0]=(t&2047)<<21|o>>>11,h[_+3|0]=(t&7)<<29|o>>>3,h[_+2|0]=((i&65535)<<16|e>>>16)&31|o<<5,e=r&2097151,r=q(K,T,654183,0)+e|0,i=p,i=e>>>0>r>>>0?i+1|0:i,e=t,t=t>>21,e=(e&2097151)<<11|o>>>21,r=e+r|0,A=t+i|0,A=e>>>0>r>>>0?A+1|0:A,e=A,h[_+6|0]=(A&63)<<26|r>>>6,h[_+5|0]=r<<2|(o&1572864)>>>19,t=X&2097151,i=q(K,T,-997805,-1)+t|0,A=p,A=t>>>0>i>>>0?A+1|0:A,t=e>>21,o=i,i=(e&2097151)<<11|r>>>21,e=o+i|0,t=t+A|0,t=e>>>0<i>>>0?t+1|0:t,h[_+9|0]=(t&511)<<23|e>>>9,h[_+8|0]=(t&1)<<31|e>>>1,h[_+7|0]=e<<7|(r&2080768)>>>14,r=G&2097151,A=q(K,T,136657,0)+r|0,i=p,i=r>>>0>A>>>0?i+1|0:i,r=t,t=t>>21,o=(r&2097151)<<11|e>>>21,r=o+A|0,A=t+i|0,A=r>>>0<o>>>0?A+1|0:A,h[_+12|0]=(A&4095)<<20|r>>>12,h[_+11|0]=(A&15)<<28|r>>>4,h[_+10|0]=r<<4|(e&1966080)>>>17,e=v&2097151,i=q(K,T,-683901,-1)+e|0,t=p,t=e>>>0>i>>>0?t+1|0:t,e=A,A=A>>21,o=i,i=(e&2097151)<<11|r>>>21,e=o+i|0,A=t+A|0,A=e>>>0<i>>>0?A+1|0:A,h[_+14|0]=(A&127)<<25|e>>>7,h[_+13|0]=e<<1|(r&1048576)>>>20,t=A>>21,A=(A&2097151)<<11|e>>>21,r=A+(l&2097151)|0,t=r>>>0<A>>>0?t+1|0:t,h[_+17|0]=(t&1023)<<22|r>>>10,h[_+16|0]=(t&3)<<30|r>>>2,h[_+15|0]=r<<6|(e&2064384)>>>15,e=t,t=t>>21,A=(e&2097151)<<11|r>>>21,e=A+(f&2097151)|0,i=e>>>0<A>>>0?t+1|0:t,h[_+20|0]=(i&8191)<<19|e>>>13,h[_+19|0]=(i&31)<<27|e>>>5,o=(i&2097151)<<11|e>>>21,t=o+(u&2097151)|0,A=i>>21,A=t>>>0<o>>>0?A+1|0:A,o=t,h[_+21|0]=t,h[_+18|0]=e<<3|(r&1835008)>>>18,h[_+22|0]=(A&255)<<24|t>>>8,r=(A&2097151)<<11|t>>>21,e=r+(j&2097151)|0,t=A>>21,t=e>>>0<r>>>0?t+1|0:t,h[_+25|0]=(t&2047)<<21|e>>>11,h[_+24|0]=(t&7)<<29|e>>>3,h[_+23|0]=((A&65535)<<16|o>>>16)&31|e<<5,A=(t&2097151)<<11|e>>>21,r=A+(B&2097151)|0,t=t>>21,t=r>>>0<A>>>0?t+1|0:t,h[_+27|0]=(t&63)<<26|r>>>6,h[_+26|0]=r<<2|(e&1572864)>>>19,e=t,t=t>>21,o=(e&2097151)<<11|r>>>21,i=m&2097151,e=o+i|0,A=t,A=e>>>0<i>>>0?A+1|0:A,h[_+31|0]=(A&131071)<<15|e>>>17,h[_+30|0]=(A&511)<<23|e>>>9,h[_+28|0]=e<<7|(r&2080768)>>>14,h[_+29|0]=o+m>>>1}function K6(_,e,r,A){for(var t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0,x=0,z=0,$=0,J=0,A0=0,n0=0,t0=0,_0=0,s0=0,o0=0,B0=0,u0=0,l0=0,j0=0,v0=0,f0=0,c0=0,q0=0,P0=0,m0=0,C0=0,M0=0,I0=0;t=u<<3,o=t+r|0,t=e+t|0,i=s[t|0]|s[t+1|0]<<8|(s[t+2|0]<<16|s[t+3|0]<<24),d=s[t+4|0]|s[t+5|0]<<8|(s[t+6|0]<<16|s[t+7|0]<<24),j=i<<24|(i&65280)<<8,y=i&16711680,T=y<<24,y=y>>>8|0,B=i&-16777216,t=B>>>24|0,n[o>>2]=T|B<<8|(((d&255)<<24|i>>>8)&-16777216|((d&16777215)<<8|i>>>24)&16711680|(d>>>8&65280|d>>>24)),t=t|y|j,n[o+4>>2]=t,u=u+1|0,(u|0)!=16;);for(e=n[_+60>>2],n[A+56>>2]=n[_+56>>2],n[A+60>>2]=e,e=n[_+52>>2],n[A+48>>2]=n[_+48>>2],n[A+52>>2]=e,e=n[_+44>>2],n[A+40>>2]=n[_+40>>2],n[A+44>>2]=e,e=n[_+36>>2],n[A+32>>2]=n[_+32>>2],n[A+36>>2]=e,e=n[_+28>>2],n[A+24>>2]=n[_+24>>2],n[A+28>>2]=e,e=n[_+20>>2],n[A+16>>2]=n[_+16>>2],n[A+20>>2]=e,e=n[_+12>>2],n[A+8>>2]=n[_+8>>2],n[A+12>>2]=e,e=n[_+4>>2],n[A>>2]=n[_>>2],n[A+4>>2]=e;;){if(o=n[A+56>>2],y=n[A+60>>2],x=o0<<3,d=x+r|0,e=d,t=n[e>>2],e=n[e+4>>2],i=n[A+36>>2],C=i,v=n[A+32>>2],i=D(v,i,50),u=p,i=D(v,C,46)^i,u=p^u,i=D(v,C,23)^i,t=i+t|0,e=(p^u)+e|0,e=t>>>0<i>>>0?e+1|0:e,i=x+38512|0,u=n[i>>2],t=u+t|0,e=n[i+4>>2]+e|0,e=t>>>0<u>>>0?e+1|0:e,T=n[A+48>>2],K=n[A+40>>2],u=(T^K)&v^T,i=u+t|0,M=n[A+52>>2],f=n[A+44>>2],t=((M^f)&C^M)+e|0,e=(i>>>0<u>>>0?t+1|0:t)+y|0,o=i+o|0,e=o>>>0<i>>>0?e+1|0:e,i=n[A+24>>2],u=i+o|0,t=n[A+28>>2]+e|0,t=i>>>0>u>>>0?t+1|0:t,O=t,n[A+24>>2]=u,n[A+28>>2]=t,t=n[A+4>>2],X=t,i=n[A>>2],t=D(i,t,36),y=p,t=D(i,X,30)^t,y=p^y,B=o+(D(i,X,25)^t)|0,t=e+(p^y)|0,t=o>>>0>B>>>0?t+1|0:t,e=B,y=n[A+16>>2],o=n[A+8>>2],B=i&(y|o)|o&y,j=e+B|0,e=t,t=n[A+20>>2],l=n[A+12>>2],e=e+(X&(t|l)|t&l)|0,e=B>>>0>j>>>0?e+1|0:e,B=e,n[A+56>>2]=j,n[A+60>>2]=e,g=y,m=t,G=x|8,z=G+r|0,e=z,U=n[e>>2],A0=n[e+4>>2],y=(v^K)&u^K,e=y+T|0,t=((C^f)&O^f)+M|0,t=e>>>0<y>>>0?t+1|0:t,y=D(u,O,50),T=p,y=D(u,O,46)^y,T=p^T,M=D(u,O,23)^y,y=M+e|0,e=(p^T)+t|0,e=(y>>>0<M>>>0?e+1|0:e)+A0|0,t=y+U|0,e=t>>>0<y>>>0?e+1|0:e,y=t,t=G+38512|0,T=n[t>>2],y=y+T|0,t=n[t+4>>2]+e|0,e=y>>>0<T>>>0?t+1|0:t,t=e+m|0,T=y+g|0,t=T>>>0<y>>>0?t+1|0:t,M=t,n[A+16>>2]=T,n[A+20>>2]=t,e=e+((l|X)&B|l&X)|0,t=y+((i|o)&j|i&o)|0,e=t>>>0<y>>>0?e+1|0:e,y=D(j,B,36),g=p,y=D(j,B,30)^y,g=p^g,m=t,t=D(j,B,25)^y,y=m+t|0,e=(p^g)+e|0,e=t>>>0>y>>>0?e+1|0:e,g=e,n[A+48>>2]=y,n[A+52>>2]=e,m=o,G=l,o=x|16,t=o+r|0,l=n[t>>2],e=l+K|0,t=n[t+4>>2]+f|0,t=e>>>0<l>>>0?t+1|0:t,f=e,e=o+38512|0,l=n[e>>2],o=f+l|0,e=n[e+4>>2]+t|0,e=o>>>0<l>>>0?e+1|0:e,t=o,o=(u^v)&T^v,t=t+o|0,e=((C^O)&M^C)+e|0,e=t>>>0<o>>>0?e+1|0:e,o=D(T,M,50),l=p,o=D(T,M,46)^o,l=p^l,K=D(T,M,23)^o,o=K+t|0,t=(p^l)+e|0,l=o,K=o>>>0<K>>>0?t+1|0:t,t=K+G|0,o=o+m|0,t=l>>>0>o>>>0?t+1|0:t,G=t,n[A+8>>2]=o,n[A+12>>2]=t,e=D(y,g,36),t=p,e=D(y,g,30)^e,t=p^t,f=D(y,g,25)^e,m=f+((i|j)&y|i&j)|0,e=((B|X)&g|B&X)+(p^t)|0,t=K+(m>>>0<f>>>0?e+1|0:e)|0,K=l+m|0,t=K>>>0<l>>>0?t+1|0:t,l=t,n[A+40>>2]=K,n[A+44>>2]=t,m=i,t=v,i=x|24,e=i+r|0,v=n[e>>2],t=t+v|0,e=n[e+4>>2]+C|0,e=t>>>0<v>>>0?e+1|0:e,f=t,t=i+38512|0,v=n[t>>2],i=f+v|0,t=n[t+4>>2]+e|0,t=i>>>0<v>>>0?t+1|0:t,e=i,i=u^(u^T)&o,e=e+i|0,t=(O^(M^O)&G)+t|0,t=e>>>0<i>>>0?t+1|0:t,i=D(o,G,50),v=p,i=D(o,G,46)^i,v=p^v,C=D(o,G,23)^i,i=C+e|0,e=(p^v)+t|0,e=i>>>0<C>>>0?e+1|0:e,t=e+X|0,X=i+m|0,t=X>>>0<i>>>0?t+1|0:t,C=t,n[A>>2]=X,n[A+4>>2]=t,t=D(K,l,36),v=p,t=D(K,l,30)^t,m=p^v,f=D(K,l,25)^t,v=f+((y|j)&K|y&j)|0,t=((B|g)&l|B&g)+(p^m)|0,e=e+(v>>>0<f>>>0?t+1|0:t)|0,m=i+v|0,e=m>>>0<i>>>0?e+1|0:e,v=e,n[A+32>>2]=m,n[A+36>>2]=e,e=x|32,t=e+r|0,i=n[t>>2],t=O+n[t+4>>2]|0,i=i+u|0,t=i>>>0<u>>>0?t+1|0:t,e=e+38512|0,u=n[e>>2],i=u+i|0,e=n[e+4>>2]+t|0,e=i>>>0<u>>>0?e+1|0:e,t=i,i=T^(o^T)&X,t=t+i|0,e=(M^(M^G)&C)+e|0,e=t>>>0<i>>>0?e+1|0:e,i=D(X,C,50),u=p,i=D(X,C,46)^i,u=p^u,O=D(X,C,23)^i,i=O+t|0,t=(p^u)+e|0,t=i>>>0<O>>>0?t+1|0:t,f=t,e=t,t=D(m,v,36),u=p,t=D(m,v,30)^t,O=p^u,U=D(m,v,25)^t,u=U+((y|K)&m|y&K)|0,t=((g|l)&v|g&l)+(p^O)|0,e=(u>>>0<U>>>0?t+1|0:t)+e|0,O=i+u|0,e=O>>>0<u>>>0?e+1|0:e,u=e,n[A+24>>2]=O,n[A+28>>2]=e,t=B+f|0,B=i+j|0,t=B>>>0<i>>>0?t+1|0:t,f=t,n[A+56>>2]=B,n[A+60>>2]=t,t=x|40,e=t+r|0,i=n[e>>2],e=M+n[e+4>>2]|0,i=i+T|0,e=i>>>0<T>>>0?e+1|0:e,t=t+38512|0,j=n[t>>2],i=j+i|0,t=n[t+4>>2]+e|0,t=i>>>0<j>>>0?t+1|0:t,e=i,i=o^(o^X)&B,e=e+i|0,t=(G^(C^G)&f)+t|0,t=e>>>0<i>>>0?t+1|0:t,i=D(B,f,50),j=p,i=D(B,f,46)^i,j=p^j,T=D(B,f,23)^i,i=T+e|0,e=(p^j)+t|0,e=i>>>0<T>>>0?e+1|0:e,t=D(O,u,36),j=p,t=D(O,u,30)^t,T=p^j,M=D(O,u,25)^t,j=M+((m|K)&O|m&K)|0,t=((l|v)&u|l&v)+(p^T)|0,t=(j>>>0<M>>>0?t+1|0:t)+e|0,T=i+j|0,t=T>>>0<j>>>0?t+1|0:t,j=t,n[A+16>>2]=T,n[A+20>>2]=t,e=e+g|0,t=y,y=i+y|0,e=t>>>0>y>>>0?e+1|0:e,M=e,n[A+48>>2]=y,n[A+52>>2]=e,e=x|48,t=e+r|0,i=n[t>>2],t=G+n[t+4>>2]|0,i=i+o|0,t=i>>>0<o>>>0?t+1|0:t,e=e+38512|0,o=n[e>>2],i=o+i|0,e=n[e+4>>2]+t|0,e=i>>>0<o>>>0?e+1|0:e,t=i,i=X^(B^X)&y,t=t+i|0,e=(C^(C^f)&M)+e|0,e=t>>>0<i>>>0?e+1|0:e,i=D(y,M,50),o=p,i=D(y,M,46)^i,o=p^o,g=D(y,M,23)^i,i=g+t|0,t=(p^o)+e|0,t=i>>>0<g>>>0?t+1|0:t,G=t,e=t,t=D(T,j,36),o=p,t=D(T,j,30)^t,g=p^o,U=D(T,j,25)^t,o=U+((m|O)&T|m&O)|0,t=((u|v)&j|u&v)+(p^g)|0,e=(o>>>0<U>>>0?t+1|0:t)+e|0,t=o,o=i+o|0,e=t>>>0>o>>>0?e+1|0:e,g=e,n[A+8>>2]=o,n[A+12>>2]=e,t=l+G|0,U=i+K|0,t=U>>>0<i>>>0?t+1|0:t,G=t,n[A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-64|0,z=n[t>>2],t=n[t+4>>2],$=t,t=D(z,t,63),m=p,t=D(z,$,56)^t,J=p^m,m=l,l=(($&127)<<25|z>>>7)^t,m=m+l|0,e=($>>>7^J)+e|0,e=l>>>0>m>>>0?e+1|0:e,l=e,n[d+184>>2]=m,n[d+188>>2]=e,t=j+$|0,e=G+z|0,t=e>>>0<z>>>0?t+1|0:t,j=D(U,u,45),G=p,j=D(U,u,3)^j,z=p^G,j=((u&63)<<26|U>>>6)^j,G=j+e|0,e=(u>>>6^z)+t|0,z=j>>>0>G>>>0?e+1|0:e,e=n[d+72>>2],t=n[d+76>>2],j=D(e,t,63),$=p,J=D(e,t,56)^j,j=t,t=t>>>7|0,e=J^((j&127)<<25|e>>>7),G=e+G|0,t=(t^(p^$))+z|0,t=e>>>0>G>>>0?t+1|0:t,j=t,n[d+192>>2]=G,n[d+196>>2]=t,e=D(M,_0,63),t=p,z=((_0&127)<<25|M>>>7)^(D(M,_0,56)^e),M=z+C0|0,t=(p^t^_0>>>7)+M0|0,e=g+(M>>>0<z>>>0?t+1|0:t)|0,t=v+M|0,e=t>>>0<v>>>0?e+1|0:e,g=D(m,l,45),v=p,g=D(m,l,3)^g,M=p^v,g=((l&63)<<26|m>>>6)^g,v=g+t|0,t=(l>>>6^M)+e|0,t=g>>>0>v>>>0?t+1|0:t,g=t,n[d+200>>2]=v,n[d+204>>2]=t,z=n[f0>>2],t=n[f0+4>>2],e=D(t0,n0,63),M=p,e=D(t0,n0,56)^e,_0=p^M,M=f,f=((n0&127)<<25|t0>>>7)^e,M=M+f|0,e=(n0>>>7^_0)+y|0,t=(M>>>0<f>>>0?e+1|0:e)+t|0,e=M+z|0,t=e>>>0<M>>>0?t+1|0:t,y=D(G,j,45),M=p,y=D(G,j,3)^y,f=p^M,y=((j&63)<<26|G>>>6)^y,M=y+e|0,t=(j>>>6^f)+t|0,t=y>>>0>M>>>0?t+1|0:t,y=t,n[d+208>>2]=M,n[d+212>>2]=t,f=n[c0>>2],z=n[c0+4>>2],e=D(l0,j0,63),t=p,t0=((j0&127)<<25|l0>>>7)^(D(l0,j0,56)^e),C=t0+C|0,e=(p^t^j0>>>7)+o|0,t=(C>>>0<t0>>>0?e+1|0:e)+z|0,e=C+f|0,t=e>>>0<C>>>0?t+1|0:t,o=D(v,g,45),C=p,f=e,e=g>>>6|0,o=((g&63)<<26|v>>>6)^(D(v,g,3)^o),g=f+o|0,t=(e^(p^C))+t|0,t=o>>>0>g>>>0?t+1|0:t,o=t,n[d+216>>2]=g,n[d+220>>2]=t,C=n[q0>>2],e=n[q0+4>>2],t=D(B0,u0,63),v=p,t=D(B0,u0,56)^t,f=p^v,$=x,x=((u0&127)<<25|B0>>>7)^t,v=$+x|0,t=(u0>>>7^f)+B|0,e=(v>>>0<x>>>0?t+1|0:t)+e|0,t=v+C|0,e=t>>>0<v>>>0?e+1|0:e,B=D(M,y,45),v=p,f=t,t=y>>>6|0,y=((y&63)<<26|M>>>6)^(D(M,y,3)^B),B=f+y|0,t=(t^(p^v))+e|0,t=y>>>0>B>>>0?t+1|0:t,y=t,n[d+224>>2]=B,n[d+228>>2]=t,M=n[P0>>2],C=n[P0+4>>2],e=D(v0,s0,63),t=p,f=((s0&127)<<25|v0>>>7)^(D(v0,s0,56)^e),v=f+U|0,t=(p^t^s0>>>7)+u|0,e=(v>>>0<f>>>0?t+1|0:t)+C|0,t=v+M|0,e=t>>>0<v>>>0?e+1|0:e,u=D(g,o,45),v=p,f=t,t=o>>>6|0,o=((o&63)<<26|g>>>6)^(D(g,o,3)^u),u=f+o|0,t=(t^(p^v))+e|0,t=o>>>0>u>>>0?t+1|0:t,o=t,n[d+232>>2]=u,n[d+236>>2]=t,e=D(X,i,63),t=p,f=D(X,i,56)^e,e=i>>>7|0,g=f^((i&127)<<25|X>>>7),i=g+A0|0,e=(e^(p^t))+K|0,t=l+(i>>>0<g>>>0?e+1|0:e)|0,e=i+m|0,t=e>>>0<m>>>0?t+1|0:t,i=D(B,y,45),g=p,l=e,e=y>>>6|0,y=((y&63)<<26|B>>>6)^(D(B,y,3)^i),i=l+y|0,t=(e^(p^g))+t|0,n[d+240>>2]=i,n[d+244>>2]=i>>>0<y>>>0?t+1|0:t,y=n[m0>>2],B=n[m0+4>>2],e=D(O,T,63),t=p,e=D(O,T,56)^e,g=p^t,t=T>>>7|0,T=((T&127)<<25|O>>>7)^e,i=T+G|0,e=(t^g)+j|0,t=(i>>>0<T>>>0?e+1|0:e)+B|0,e=i+y|0,t=e>>>0<i>>>0?t+1|0:t,i=D(u,o,45),y=p,l=e,e=o>>>6|0,o=((o&63)<<26|u>>>6)^(D(u,o,3)^i),i=l+o|0,t=(e^(p^y))+t|0,n[d+248>>2]=i,n[d+252>>2]=i>>>0<o>>>0?t+1|0:t;continue}break}t=e+n[_+4>>2]|0,e=i+n[_>>2]|0,t=e>>>0<i>>>0?t+1|0:t,n[_>>2]=e,n[_+4>>2]=t,e=n[_+12>>2]+n[A+12>>2]|0,t=n[A+8>>2],r=t+n[_+8>>2]|0,n[_+8>>2]=r,n[_+12>>2]=r>>>0<t>>>0?e+1|0:e,t=n[_+20>>2]+n[A+20>>2]|0,r=n[A+16>>2],e=r+n[_+16>>2]|0,n[_+16>>2]=e,n[_+20>>2]=e>>>0<r>>>0?t+1|0:t,t=n[_+28>>2]+n[A+28>>2]|0,r=n[A+24>>2],e=r+n[_+24>>2]|0,n[_+24>>2]=e,n[_+28>>2]=e>>>0<r>>>0?t+1|0:t,e=n[_+36>>2]+n[A+36>>2]|0,t=n[A+32>>2],r=t+n[_+32>>2]|0,n[_+32>>2]=r,n[_+36>>2]=r>>>0<t>>>0?e+1|0:e,t=n[_+44>>2]+n[A+44>>2]|0,r=n[A+40>>2],e=r+n[_+40>>2]|0,n[_+40>>2]=e,n[_+44>>2]=e>>>0<r>>>0?t+1|0:t,e=n[_+52>>2]+n[A+52>>2]|0,t=n[A+48>>2],r=t+n[_+48>>2]|0,n[_+48>>2]=r,n[_+52>>2]=r>>>0<t>>>0?e+1|0:e,t=n[_+60>>2]+n[A+60>>2]|0,r=n[A+56>>2],e=r+n[_+56>>2]|0,n[_+56>>2]=e,n[_+60>>2]=e>>>0<r>>>0?t+1|0:t}function N6(_,e){var r=0,A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0,x=0,z=0,$=0,J=0,A0=0,n0=0,t0=0,_0=0,s0=0,o0=0,B0=0,u0=0,l0=0,j0=0,v0=0,f0=0,c0=0,q0=0,P0=0,m0=0,C0=0,M0=0,I0=0,G0=0,d0=0,L0=0,F0=0,K0=0,N0=0,O0=0,V0=0,z0=0,$0=0,Z0=0,U0=0,x0=0;O=F-4096|0,F=O;r:{if(!_)break r;A:{n:{i=n[_+36>>2];e:{if((i|0)!=2){N0=n[_+4>>2],o=s[e+8|0],M0=n[e>>2];break e}if(N0=n[_+4>>2],M0=n[e>>2],o=s[e+8|0],M0|o>>>0>=2)break n;M0=0}if(B2(O+3072|0,0,1024),B2(O+2104|0,0,968),n[O+2048>>2]=M0,n[O+2052>>2]=0,n0=n[e+4>>2],n[O+2064>>2]=o&255,n[O+2068>>2]=0,n[O+2056>>2]=n0,n[O+2060>>2]=0,n[O+2072>>2]=n[_+16>>2],n[O+2076>>2]=0,n0=n[_+8>>2],n[O+2088>>2]=i,n[O+2092>>2]=0,n[O+2080>>2]=n0,n[O+2084>>2]=0,!n[_+20>>2])break A;for(n0=0;i=g&127,i||(l0=l0+1|0,n0=l0?n0:n0+1|0,n[O+2096>>2]=l0,n[O+2100>>2]=n0,B2(O,0,1024),M=O+1024|0,B2(M,0,1024),A=O+3072|0,TA(A,O+2048|0,O),TA(A,O,M)),i=(O+1024|0)+(i<<3)|0,M=n[i+4>>2],A=(g<<3)+N0|0,n[A>>2]=n[i>>2],n[A+4>>2]=M,M=n[_+20>>2],g=g+1|0,M>>>0>g>>>0;);break A}M=n[_+20>>2],V0=1}if(d0=o&255,i=d0|M0,n0=i?0:2,n0>>>0>=M>>>0)break r;for(z0=!i,i=n[_+24>>2],K0=n[e+4>>2],l0=(E0(i,K0)+n0|0)+E0(M,d0)|0,g=l0+((l0>>>0)%(i>>>0)|0?-1:i-1|0)|0,$0=d0+1|0;;){o=n[_+28>>2],i=n[_+24>>2],O0=((l0>>>0)%(i>>>0)|0)==1?l0-1|0:g,g=V0?n[n[_>>2]+4>>2]+(O0<<10)|0:(n0<<3)+N0|0,A=n[g>>2],g=n[g+4>>2],n[e+12>>2]=n0,o=z0?K0:(g>>>0)%(o>>>0)|0;A:{if(!M0){if(!d0){g=n0-1|0,r=0;break A}if(g=E0(M,d0),(o|0)==(K0|0)){g=(g+n0|0)-1|0,r=0;break A}g=g-!n0|0,r=0;break A}if(g=i+((o|0)==(K0|0)?(M^-1)+n0|0:(n0?0:-1)-M|0)|0,r=0,(d0|0)==3)break A;r=E0(M,$0)}M=r,l=n[n[_>>2]+4>>2],B=l+(E0(i,o)<<10)|0,o=g-1|0,r=o+M|0,t=o>>>0>r>>>0,q(A,0,A,0),q(g,0,p,0),g=p,o=r-g|0,M=0,v=0;A:{n:{e:{t:{_:{o:{i:{B:{s:{y:{if(g=t-(r>>>0<g>>>0)|0,g){if(!i)break y;break s}Fr=o-E0((o>>>0)/(i>>>0)|0,i)|0,Kr=0,p=0;break A}if(!o)break B;break i}if(A=i-1|0,!(A&i))break o;A=(U1(i)+33|0)-U1(g)|0,y=0-A|0;break t}Fr=0,Kr=g,p=0;break A}if(M=32-U1(g)|0,M>>>0<31)break _;break e}if(Fr=A&o,Kr=0,(i|0)==1)break n;o=oA(i),i=o&31,(o&63)>>>0>=32?A=g>>>i|0:(M=g>>>i|0,A=0),p=M;break A}A=M+1|0,y=63-M|0}if(M=A&63,r=M&31,M>>>0>=32?(M=0,t=g>>>r|0):(M=g>>>r|0,t=((1<<r)-1&g)<<32-r|o>>>r),y=y&63,r=y&31,y>>>0>=32?(g=o<<r,o=0):(g=(1<<r)-1&o>>>32-r|g<<r,o=o<<r),A)for(y=i-1|0,u=(y|0)==-1?-1:0;f=M<<1|t>>>31,M=t<<1|g>>>31,r=u-(f+(M>>>0>y>>>0)|0)>>31,$=r&i,t=M-$|0,M=f-(M>>>0<$>>>0)|0,g=g<<1|o>>>31,o=v|o<<1,v=r&1,A=A-1|0,!!A;);Fr=t,Kr=M,p=g<<1|o>>>31;break A}Fr=o,Kr=g,g=0}p=g}p=Kr,g=(Fr<<10)+B|0,i=l+(O0<<10)|0,M=l+(l0<<10)|0;A:{if(M0){TA(i,g,M);break 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TA(_,e,r){var A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0,x=0,z=0,$=0,J=0,A0=0,n0=0,t0=0,_0=0,s0=0,o0=0,B0=0,u0=0,l0=0,j0=0,v0=0,f0=0,c0=0,q0=0,P0=0,m0=0,C0=0,M0=0,I0=0;for(z=F-2048|0,F=z,b0(z+1024|0,e,1024),e=0;i=z+1024|0,A=e<<3,t=i+A|0,B=n[t>>2],o=_+A|0,l=n[o>>2],o=n[t+4>>2]^n[o+4>>2],n[t>>2]=B^l,n[t+4>>2]=o,B=A|8,t=B+i|0,o=n[t>>2],B=_+B|0,l=n[B>>2],B=n[t+4>>2]^n[B+4>>2],n[t>>2]=o^l,n[t+4>>2]=B,B=A|16,t=B+i|0,o=n[t>>2],B=_+B|0,l=n[B>>2],B=n[t+4>>2]^n[B+4>>2],n[t>>2]=o^l,n[t+4>>2]=B,t=A|24,A=t+i|0,B=n[A>>2],t=_+t|0,o=n[t>>2],t=n[A+4>>2]^n[t+4>>2],n[A>>2]=o^B,n[A+4>>2]=t,e=e+4|0,(e|0)!=128;);for(b0(z,i,1024),_=0,e=0;i=e<<3,A=i+z|0,t=n[A>>2],B=r+i|0,o=n[B>>2],B=n[A+4>>2]^n[B+4>>2],n[A>>2]=o^t,n[A+4>>2]=B,t=i|8,A=t+z|0,B=n[A>>2],t=r+t|0,o=n[t>>2],t=n[A+4>>2]^n[t+4>>2],n[A>>2]=o^B,n[A+4>>2]=t,t=i|16,A=t+z|0,B=n[A>>2],t=r+t|0,o=n[t>>2],t=n[A+4>>2]^n[t+4>>2],n[A>>2]=o^B,n[A+4>>2]=t,A=i|24,i=A+z|0,t=n[i>>2],A=r+A|0,B=n[A>>2],A=n[i+4>>2]^n[A+4>>2],n[i>>2]=t^B,n[i+4>>2]=A,e=e+4|0,(e|0)!=128;);for(;i=(z+1024|0)+(_<<7)|0,o=n[i+56>>2],A=n[i+24>>2],l=o+A|0,u=n[i+60>>2],t=n[i+28>>2],e=u+t|0,B=A>>>0>l>>>0?e+1|0:e,t=q(A<<1&-2,(t<<1|A>>>31)&1,o,0),A=t+l|0,e=p+B|0,B=A>>>0<t>>>0?e+1|0:e,l=D(n[i+120>>2]^A,B^n[i+124>>2],32),t=n[i+88>>2],v=l+t|0,g=p,y=n[i+92>>2],e=g+y|0,j=t>>>0>v>>>0?e+1|0:e,y=q(t<<1&-2,(y<<1|t>>>31)&1,l,0),t=y+v|0,e=p+j|0,f=t>>>0<y>>>0?e+1|0:e,B0=D(o^t,u^f,40),q0=p,e=B+q0|0,y=A+B0|0,o=y>>>0<A>>>0?e+1|0:e,A=q(B0,0,A<<1&-2,(B<<1|A>>>31)&1),_0=A+y|0,e=p+o|0,u0=A>>>0>_0>>>0?e+1|0:e,$=D(l^_0,g^u0,48),e=p,P0=e,T=$,v=e,l=n[i+40>>2],A=n[i+8>>2],y=l+A|0,J=n[i+44>>2],B=n[i+12>>2],e=J+B|0,o=A>>>0>y>>>0?e+1|0:e,B=q(A<<1&-2,(B<<1|A>>>31)&1,l,0),A=B+y|0,e=p+o|0,o=A>>>0<B>>>0?e+1|0:e,y=D(n[i+104>>2]^A,o^n[i+108>>2],32),B=n[i+72>>2],g=y+B|0,C=p,j=n[i+76>>2],e=C+j|0,u=B>>>0>g>>>0?e+1|0:e,j=q(B<<1&-2,(j<<1|B>>>31)&1,y,0),B=j+g|0,e=p+u|0,u=B^l,l=B>>>0<j>>>0?e+1|0:e,j=D(u,J^l,40),M=p,e=o+M|0,g=A+j|0,u=g>>>0<A>>>0?e+1|0:e,o=q(j,0,A<<1&-2,(o<<1|A>>>31)&1),A=o+g|0,e=p+u|0,g=A>>>0<o>>>0?e+1|0:e,l0=D(A^y,C^g,48),j0=p,e=l+j0|0,y=B+l0|0,o=y>>>0<B>>>0?e+1|0:e,l=q(l0,0,B<<1&-2,(l<<1|B>>>31)&1),B=l+y|0,e=p+o|0,J=B>>>0<l>>>0?e+1|0:e,K=D(B^j,M^J,1),e=p,v0=e,G=K,u=e,j=n[i+32>>2],o=n[i>>2],C=j+o|0,A0=n[i+36>>2],l=n[i+4>>2],e=A0+l|0,y=o>>>0>C>>>0?e+1|0:e,l=q(o<<1&-2,(l<<1|o>>>31)&1,j,0),o=l+C|0,e=p+y|0,y=o>>>0<l>>>0?e+1|0:e,n0=D(n[i+96>>2]^o,y^n[i+100>>2],32),d=i- 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0=n[i+260>>2],l=n[i+4>>2],e=A0+l|0,y=o>>>0>C>>>0?e+1|0:e,l=q(o<<1&-2,(l<<1|o>>>31)&1,j,0),o=l+C|0,e=p+y|0,y=o>>>0<l>>>0?e+1|0:e,n0=D(n[i+768>>2]^o,y^n[i+772>>2],32),l=n[i+512>>2],m=n0+l|0,v0=p,C=n[i+516>>2],e=v0+C|0,M=l>>>0>m>>>0?e+1|0:e,C=q(l<<1&-2,(C<<1|l>>>31)&1,n0,0),l=C+m|0,e=p+M|0,C=l>>>0<C>>>0?e+1|0:e,A0=D(l^j,A0^C,40),c0=p,e=y+c0|0,M=o+A0|0,j=M>>>0<o>>>0?e+1|0:e,y=q(A0,0,o<<1&-2,(y<<1|o>>>31)&1),o=y+M|0,e=p+j|0,M=o>>>0<y>>>0?e+1|0:e,e=M+u|0,y=o+G|0,j=y>>>0<o>>>0?e+1|0:e,u=q(G,0,o<<1&-2,(M<<1|o>>>31)&1),y=u+y|0,e=p+j|0,m=y>>>0<u>>>0?e+1|0:e,t0=D(y^T,m^v,32),e=p,m0=e,O=e,T=n[i+384>>2],j=n[i+128>>2],G=T+j|0,f0=n[i+388>>2],v=n[i+132>>2],e=f0+v|0,u=j>>>0>G>>>0?e+1|0:e,v=q(j<<1&-2,(v<<1|j>>>31)&1,T,0),j=v+G|0,e=p+u|0,u=j>>>0<v>>>0?e+1|0:e,G=D(n[i+896>>2]^j,u^n[i+900>>2],32),v=n[i+640>>2],d=G+v|0,s0=p,U=n[i+644>>2],e=s0+U|0,x=v>>>0>d>>>0?e+1|0:e,U=q(v<<1&-2,(U<<1|v>>>31)&1,G,0),v=U+d|0,e=p+x|0,d=v^T,T=v>>>0<U>>>0?e+1|0:e,U=D(d,f0^T,40),f0=p,e=u+f0|0,d=j+U|0,x=d>>>0<j>>>0?e+1|0:e,u=q(U,0,j<<1&-2,(u<<1|j>>>31)&1),j=u+d|0,e=p+x|0,d=j^G,G=u>>>0>j>>>0?e+1|0:e,x=D(d,s0^G,48),s0=p,e=T+s0|0,d=v+x|0,u=d>>>0<v>>>0?e+1|0:e,T=q(x,0,v<<1&-2,(T<<1|v>>>31)&1),v=T+d|0,e=p+u|0,T=v>>>0<T>>>0?e+1|0:e,e=T+O|0,u=v+t0|0,O=u>>>0<v>>>0?e+1|0:e,d=q(t0,0,v<<1&-2,(T<<1|v>>>31)&1),u=d+u|0,e=p+O|0,O=u^K,K=u>>>0<d>>>0?e+1|0:e,O=D(O,j0^K,40),j0=p,e=m+j0|0,o0=y+O|0,d=o0>>>0<y>>>0?e+1|0:e,m=q(O,0,y<<1&-2,(m<<1|y>>>31)&1),y=m+o0|0,e=p+d|0,n[i>>2]=y,e=y>>>0<m>>>0?e+1|0:e,n[i+4>>2]=e,y=D(y^t0,e^m0,48),n[i+904>>2]=y,e=p,n[i+908>>2]=e,e=e+K|0,t0=y+u|0,m=t0>>>0<u>>>0?e+1|0:e,u=q(y,0,u<<1&-2,(K<<1|u>>>31)&1),y=u+t0|0,e=p+m|0,n[i+640>>2]=y,e=y>>>0<u>>>0?e+1|0:e,n[i+644>>2]=e,M0=i,I0=D(y^O,e^j0,1),n[M0+264>>2]=I0,n[i+268>>2]=p,e=f+q0|0,u=t+$|0,y=u>>>0<t>>>0?e+1|0:e,t=q($,0,t<<1&-2,(f<<1|t>>>31)&1),u=t+u|0,e=p+y|0,e=t>>>0>u>>>0?e+1|0:e,y=e,t=e,v=D(v^U,T^f0,1),T=p,e=g+T|0,m=A+v|0,f=m>>>0<A>>>0?e+1|0:e,g=q(v,0,A<<1&-2,(g<<1|A>>>31)&1),A=g+m|0,e=p+f|0,e=A>>>0<g>>>0?e+1|0:e,g=D(o^n0,M^v0,48),o=e,K=p,f=D(g^A,e^K,32),m=f+u|0,$=p,e=$+t|0,M=f>>>0>m>>>0?e+1|0:e,e=m,m=q(u<<1&-2,(t<<1|u>>>31)&1,f,0),t=e+m|0,e=p+M|0,M=t^v,v=t>>>0<m>>>0?e+1|0:e,M=D(M,T^v,40),T=p,e=o+T|0,n0=A+M|0,m=n0>>>0<A>>>0?e+1|0:e,A=q(M,0,A<<1&-2,(o<<1|A>>>31)&1),o=A+n0|0,e=p+m|0,e=A>>>0>o>>>0?e+1|0:e,A=D(o^f,$^e,48),n[i+768>>2]=A,f=p,n[i+772>>2]=f,n[i+8>>2]=o,n[i+12>>2]=e,e=v+f|0,f=A+t|0,o=f>>>0<t>>>0?e+1|0:e,t=q(A,0,t<<1&-2,(v<<1|t>>>31)&1),A=t+f|0,e=p+o|0,n[i+648>>2]=A,e=A>>>0<t>>>0?e+1|0:e,n[i+652>>2]=e,M0=i,I0=D(A^M,e^T,1),n[M0+384>>2]=I0,n[i+388>>2]=p,v=D(u^B0,y^X,1),f=p,e=G+f|0,A=j+v|0,t=A>>>0<j>>>0?e+1|0:e,o=q(v,0,j<<1&-2,(G<<1|j>>>31)&1),A=o+A|0,e=p+t|0,y=A>>>0<o>>>0?e+1|0:e,u=D(A^l0,P0^y,32),e=p,M=e,o=e,e=C+K|0,t=l+g|0,j=t>>>0<l>>>0?e+1|0:e,l=q(g,0,l<<1&-2,(C<<1|l>>>31)&1),t=l+t|0,e=p+j|0,l=t>>>0<l>>>0?e+1|0:e,e=l+o|0,o=t+u|0,j=o>>>0<t>>>0?e+1|0:e,g=q(u,0,t<<1&-2,(l<<1|t>>>31)&1),o=g+o|0,e=p+j|0,j=o>>>0<g>>>0?e+1|0:e,v=D(o^v,f^j,40),g=p,e=y+g|0,C=A+v|0,f=C>>>0<A>>>0?e+1|0:e,A=q(v,0,A<<1&-2,(y<<1|A>>>31)&1),y=A+C|0,e=p+f|0,e=A>>>0>y>>>0?e+1|0:e,A=D(y^u,M^e,48),n[i+776>>2]=A,u=p,n[i+780>>2]=u,n[i+128>>2]=y,n[i+132>>2]=e,e=u+j|0,u=A+o|0,y=u>>>0<o>>>0?e+1|0:e,o=q(A,0,o<<1&-2,(j<<1|o>>>31)&1),A=o+u|0,e=p+y|0,n[i+512>>2]=A,e=A>>>0<o>>>0?e+1|0:e,n[i+516>>2]=e,M0=i,I0=D(A^v,e^g,1),n[M0+392>>2]=I0,n[i+396>>2]=p,o=D(t^A0,l^c0,1),A=o+_0|0,j=p,e=j+u0|0,t=A>>>0<o>>>0?e+1|0:e,l=q(_0<<1&-2,(u0<<1|_0>>>31)&1,o,0),A=l+A|0,e=p+t|0,t=A>>>0<l>>>0?e+1|0:e,l=D(A^x,s0^t,32),v=p,e=J+v|0,u=B+l|0,y=u>>>0<B>>>0?e+1|0:e,e=u,u=q(l,0,B<<1&-2,(J<<1|B>>>31)&1),B=e+u|0,e=p+y|0,y=o^B,o=u>>>0>B>>>0?e+1|0:e,y=D(y,j^o,40),u=p,e=t+u|0,f=A+y|0,j=f>>>0<A>>>0?e+1|0:e,A=q(y,0,A<<1&-2,(t<<1|A>>>31)&1),t=A+f|0,e=p+j|0,e=A>>>0>t>>>0?e+1|0:e,A=D(t^l,v^e,48),n[i+896>>2]=A,l=p,n[i+900>>2]=l,n[i+136>>2]=t,n[i+140>>2]=e,e=o+l|0,l=A+B|0,t=l>>>0<A>>>0?e+1|0:e,B=q(A,0,B<<1&-2,(o<<1|B>>>31)&1),A=B+l|0,e=p+t|0,n[i+520>>2]=A,e=A>>>0<B>>>0?e+1|0:e,n[i+524>>2]=e,M0=i,I0=D(A^y,e^u,1),n[M0+256>>2]=I0,n[i+260>>2]=p,_=_+1|0,(_|0)!=8;);for(b0(r,z,1024),_=0;e=_<<3,i=e+r|0,A=n[i>>2],u=z+1024|0,t=u,B=t+e|0,o=n[B>>2],B=n[i+4>>2]^n[B+4>>2],n[i>>2]=A^o,n[i+4>>2]=B,A=e|8,i=A+r|0,B=n[i>>2],A=A+t|0,t=n[A>>2],A=n[i+4>>2]^n[A+4>>2],n[i>>2]=t^B,n[i+4>>2]=A,A=e|16,i=A+r|0,t=n[i>>2],A=A+u|0,B=n[A>>2],A=n[i+4>>2]^n[A+4>>2],n[i>>2]=t^B,n[i+4>>2]=A,i=e|24,e=i+r|0,A=n[e>>2],i=i+u|0,t=n[i>>2],i=n[e+4>>2]^n[i+4>>2],n[e>>2]=A^t,n[e+4>>2]=i,_=_+4|0,(_|0)!=128;);F=z+2048|0}function j4(_,e,r){var A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0;for(A=F-800|0,F=A,o=s[e+4|0]|s[e+5|0]<<8|(s[e+6|0]<<16|s[e+7|0]<<24),u=s[e+8|0]|s[e+9|0]<<8|(s[e+10|0]<<16|s[e+11|0]<<24),B=s[e+12|0]|s[e+13|0]<<8|(s[e+14|0]<<16|s[e+15|0]<<24),l=s[e+16|0]|s[e+17|0]<<8|(s[e+18|0]<<16|s[e+19|0]<<24),j=s[e+20|0]|s[e+21|0]<<8|(s[e+22|0]<<16|s[e+23|0]<<24),v=s[e+24|0]|s[e+25|0]<<8|(s[e+26|0]<<16|s[e+27|0]<<24),f=s[e+28|0]|s[e+29|0]<<8|(s[e+30|0]<<16|s[e+31|0]<<24),T=s[_+4|0]|s[_+5|0]<<8|(s[_+6|0]<<16|s[_+7|0]<<24),m=s[_+8|0]|s[_+9|0]<<8|(s[_+10|0]<<16|s[_+11|0]<<24),M=s[_+12|0]|s[_+13|0]<<8|(s[_+14|0]<<16|s[_+15|0]<<24),C=s[_+16|0]|s[_+17|0]<<8|(s[_+18|0]<<16|s[_+19|0]<<24),G=s[_+20|0]|s[_+21|0]<<8|(s[_+22|0]<<16|s[_+23|0]<<24),d=s[_+24|0]|s[_+25|0]<<8|(s[_+26|0]<<16|s[_+27|0]<<24),X=s[_+28|0]|s[_+29|0]<<8|(s[_+30|0]<<16|s[_+31|0]<<24),g=s[e|0]|s[e+1|0]<<8|(s[e+2|0]<<16|s[e+3|0]<<24),e=r- -64|0,K=s[_|0]|s[_+1|0]<<8|(s[_+2|0]<<16|s[_+3|0]<<24),n[e>>2]=K^33620224,n[r+56>>2]=1496785429,n[r+60>>2]=1652156816,n[r+48>>2]=33620224,n[r+52>>2]=218629379,n[r+40>>2]=1110511904,n[r+44>>2]=-584534669,n[r+32>>2]=1427652059,n[r+36>>2]=-248528275,g=g^K,n[r>>2]=g,n[r+92>>2]=X^-584534669,n[r+88>>2]=d^1110511904,n[r+84>>2]=G^-248528275,n[r+80>>2]=C^1427652059,n[r+76>>2]=M^1652156816,n[r+72>>2]=m^1496785429,n[r+68>>2]=T^218629379,f=f^X,n[r+28>>2]=f,v=v^d,n[r+24>>2]=v,j=j^G,n[r+20>>2]=j,l=l^C,n[r+16>>2]=l,B=B^M,n[r+12>>2]=B,u=u^m,n[r+8>>2]=u,O=o^T,n[r+4>>2]=O,o=0;_=n[r+92>>2],n[A+792>>2]=n[r+88>>2],n[A+796>>2]=_,_=n[r+84>>2],n[A+784>>2]=n[r+80>>2],n[A+788>>2]=_,_=n[e+4>>2],n[A+752>>2]=n[e>>2],n[A+756>>2]=_,_=n[e+12>>2],n[A+760>>2]=n[e+8>>2],n[A+764>>2]=_,_=n[r+84>>2],n[A+736>>2]=n[r+80>>2],n[A+740>>2]=_,_=n[r+92>>2],n[A+744>>2]=n[r+88>>2],n[A+748>>2]=_,_=A+768|0,S0(_,A+752|0,A+736|0),t=n[A+780>>2],n[r+88>>2]=n[A+776>>2],n[r+92>>2]=t,t=n[A+772>>2],n[r+80>>2]=n[A+768>>2],n[r+84>>2]=t,t=n[r+52>>2],n[A+720>>2]=n[r+48>>2],n[A+724>>2]=t,t=n[r+60>>2],n[A+728>>2]=n[r+56>>2],n[A+732>>2]=t,t=n[e+4>>2],n[A+704>>2]=n[e>>2],n[A+708>>2]=t,t=n[e+12>>2],n[A+712>>2]=n[e+8>>2],n[A+716>>2]=t,S0(_,A+720|0,A+704|0),t=n[A+780>>2],n[e+8>>2]=n[A+776>>2],n[e+12>>2]=t,t=n[A+772>>2],n[e>>2]=n[A+768>>2],n[e+4>>2]=t,t=n[r+36>>2],n[A+688>>2]=n[r+32>>2],n[A+692>>2]=t,t=n[r+44>>2],n[A+696>>2]=n[r+40>>2],n[A+700>>2]=t,t=n[r+52>>2],n[A+672>>2]=n[r+48>>2],n[A+676>>2]=t,t=n[r+60>>2],n[A+680>>2]=n[r+56>>2],n[A+684>>2]=t,S0(_,A+688|0,A+672|0),t=n[A+780>>2],n[r+56>>2]=n[A+776>>2],n[r+60>>2]=t,t=n[A+772>>2],n[r+48>>2]=n[A+768>>2],n[r+52>>2]=t,t=n[r+20>>2],n[A+656>>2]=n[r+16>>2],n[A+660>>2]=t,t=n[r+28>>2],n[A+664>>2]=n[r+24>>2],n[A+668>>2]=t,t=n[r+36>>2],n[A+640>>2]=n[r+32>>2],n[A+644>>2]=t,t=n[r+44>>2],n[A+648>>2]=n[r+40>>2],n[A+652>>2]=t,S0(_,A+656|0,A+640|0),t=n[A+780>>2],n[r+40>>2]=n[A+776>>2],n[r+44>>2]=t,t=n[A+772>>2],n[r+32>>2]=n[A+768>>2],n[r+36>>2]=t,t=n[r+4>>2],n[A+624>>2]=n[r>>2],n[A+628>>2]=t,t=n[r+12>>2],n[A+632>>2]=n[r+8>>2],n[A+636>>2]=t,t=n[r+20>>2],n[A+608>>2]=n[r+16>>2],n[A+612>>2]=t,t=n[r+28>>2],n[A+616>>2]=n[r+24>>2],n[A+620>>2]=t,S0(_,A+624|0,A+608|0),t=n[A+780>>2],n[r+24>>2]=n[A+776>>2],n[r+28>>2]=t,t=n[A+772>>2],n[r+16>>2]=n[A+768>>2],n[r+20>>2]=t,t=n[A+788>>2],n[A+592>>2]=n[A+784>>2],n[A+596>>2]=t,t=n[A+796>>2],n[A+600>>2]=n[A+792>>2],n[A+604>>2]=t,t=n[r+4>>2],n[A+576>>2]=n[r>>2],n[A+580>>2]=t,t=n[r+12>>2],n[A+584>>2]=n[r+8>>2],n[A+588>>2]=t,S0(_,A+592|0,A+576|0),t=n[A+768>>2],i=n[A+772>>2],y=n[A+776>>2],n[r+12>>2]=n[A+780>>2]^M,n[r+8>>2]=y^m,n[r+4>>2]=i^T,n[r>>2]=t^K,t=n[r+92>>2],n[A+792>>2]=n[r+88>>2],n[A+796>>2]=t,t=n[r+84>>2],n[A+784>>2]=n[r+80>>2],n[A+788>>2]=t,t=n[e+4>>2],n[A+560>>2]=n[e>>2],n[A+564>>2]=t,t=n[e+12>>2],n[A+568>>2]=n[e+8>>2],n[A+572>>2]=t,t=n[r+92>>2],n[A+552>>2]=n[r+88>>2],n[A+556>>2]=t,t=n[r+84>>2],n[A+544>>2]=n[r+80>>2],n[A+548>>2]=t,S0(_,A+560|0,A+544|0),t=n[A+780>>2],n[r+88>>2]=n[A+776>>2],n[r+92>>2]=t,t=n[A+772>>2],n[r+80>>2]=n[A+768>>2],n[r+84>>2]=t,t=n[r+52>>2],n[A+528>>2]=n[r+48>>2],n[A+532>>2]=t,t=n[r+60>>2],n[A+536>>2]=n[r+56>>2],n[A+540>>2]=t,t=n[e+4>>2],n[A+512>>2]=n[e>>2],n[A+516>>2]=t,t=n[e+12>>2],n[A+520>>2]=n[e+8>>2],n[A+524>>2]=t,S0(_,A+528|0,A+512|0),t=n[A+780>>2],n[e+8>>2]=n[A+776>>2],n[e+12>>2]=t,t=n[A+772>>2],n[e>>2]=n[A+768>>2],n[e+4>>2]=t,t=n[r+36>>2],n[A+496>>2]=n[r+32>>2],n[A+500>>2]=t,t=n[r+44>>2],n[A+504>>2]=n[r+40>>2],n[A+508>>2]=t,t=n[r+52>>2],n[A+480>>2]=n[r+48>>2],n[A+484>>2]=t,t=n[r+60>>2],n[A+488>>2]=n[r+56>>2],n[A+492>>2]=t,S0(_,A+496|0,A+480|0),t=n[A+780>>2],n[r+56>>2]=n[A+776>>2],n[r+60>>2]=t,t=n[A+772>>2],n[r+48>>2]=n[A+768>>2],n[r+52>>2]=t,t=n[r+20>>2],n[A+464>>2]=n[r+16>>2],n[A+468>>2]=t,t=n[r+28>>2],n[A+472>>2]=n[r+24>>2],n[A+476>>2]=t,t=n[r+36>>2],n[A+448>>2]=n[r+32>>2],n[A+452>>2]=t,t=n[r+44>>2],n[A+456>>2]=n[r+40>>2],n[A+460>>2]=t,S0(_,A+464|0,A+448|0),t=n[A+780>>2],n[r+40>>2]=n[A+776>>2],n[r+44>>2]=t,t=n[A+772>>2],n[r+32>>2]=n[A+768>>2],n[r+36>>2]=t,t=n[r+4>>2],n[A+432>>2]=n[r>>2],n[A+436>>2]=t,t=n[r+12>>2],n[A+440>>2]=n[r+8>>2],n[A+444>>2]=t,t=n[r+20>>2],n[A+416>>2]=n[r+16>>2],n[A+420>>2]=t,t=n[r+28>>2],n[A+424>>2]=n[r+24>>2],n[A+428>>2]=t,S0(_,A+432|0,A+416|0),t=n[A+780>>2],n[r+24>>2]=n[A+776>>2],n[r+28>>2]=t,t=n[A+772>>2],n[r+16>>2]=n[A+768>>2],n[r+20>>2]=t,t=n[A+788>>2],n[A+400>>2]=n[A+784>>2],n[A+404>>2]=t,t=n[A+796>>2],n[A+408>>2]=n[A+792>>2],n[A+412>>2]=t,t=n[r+4>>2],n[A+384>>2]=n[r>>2],n[A+388>>2]=t,t=n[r+12>>2],n[A+392>>2]=n[r+8>>2],n[A+396>>2]=t,S0(_,A+400|0,A+384|0),t=n[A+768>>2],i=n[A+772>>2],y=n[A+776>>2],n[r+12>>2]=n[A+780>>2]^X,n[r+8>>2]=y^d,n[r+4>>2]=i^G,n[r>>2]=t^C,t=n[r+92>>2],n[A+792>>2]=n[r+88>>2],n[A+796>>2]=t,t=n[r+84>>2],n[A+784>>2]=n[r+80>>2],n[A+788>>2]=t,t=n[e+4>>2],n[A+368>>2]=n[e>>2],n[A+372>>2]=t,t=n[e+12>>2],n[A+376>>2]=n[e+8>>2],n[A+380>>2]=t,t=n[r+92>>2],n[A+360>>2]=n[r+88>>2],n[A+364>>2]=t,t=n[r+84>>2],n[A+352>>2]=n[r+80>>2],n[A+356>>2]=t,S0(_,A+368|0,A+352|0),t=n[A+780>>2],n[r+88>>2]=n[A+776>>2],n[r+92>>2]=t,t=n[A+772>>2],n[r+80>>2]=n[A+768>>2],n[r+84>>2]=t,t=n[r+52>>2],n[A+336>>2]=n[r+48>>2],n[A+340>>2]=t,t=n[r+60>>2],n[A+344>>2]=n[r+56>>2],n[A+348>>2]=t,t=n[e+4>>2],n[A+320>>2]=n[e>>2],n[A+324>>2]=t,t=n[e+12>>2],n[A+328>>2]=n[e+8>>2],n[A+332>>2]=t,S0(_,A+336|0,A+320|0),t=n[A+780>>2],n[e+8>>2]=n[A+776>>2],n[e+12>>2]=t,t=n[A+772>>2],n[e>>2]=n[A+768>>2],n[e+4>>2]=t,t=n[r+36>>2],n[A+304>>2]=n[r+32>>2],n[A+308>>2]=t,t=n[r+44>>2],n[A+312>>2]=n[r+40>>2],n[A+316>>2]=t,t=n[r+52>>2],n[A+288>>2]=n[r+48>>2],n[A+292>>2]=t,t=n[r+60>>2],n[A+296>>2]=n[r+56>>2],n[A+300>>2]=t,S0(_,A+304|0,A+288|0),t=n[A+780>>2],n[r+56>>2]=n[A+776>>2],n[r+60>>2]=t,t=n[A+772>>2],n[r+48>>2]=n[A+768>>2],n[r+52>>2]=t,t=n[r+20>>2],n[A+272>>2]=n[r+16>>2],n[A+276>>2]=t,t=n[r+28>>2],n[A+280>>2]=n[r+24>>2],n[A+284>>2]=t,t=n[r+36>>2],n[A+256>>2]=n[r+32>>2],n[A+260>>2]=t,t=n[r+44>>2],n[A+264>>2]=n[r+40>>2],n[A+268>>2]=t,S0(_,A+272|0,A+256|0),t=n[A+780>>2],n[r+40>>2]=n[A+776>>2],n[r+44>>2]=t,t=n[A+772>>2],n[r+32>>2]=n[A+768>>2],n[r+36>>2]=t,t=n[r+4>>2],n[A+240>>2]=n[r>>2],n[A+244>>2]=t,t=n[r+12>>2],n[A+248>>2]=n[r+8>>2],n[A+252>>2]=t,t=n[r+20>>2],n[A+224>>2]=n[r+16>>2],n[A+228>>2]=t,t=n[r+28>>2],n[A+232>>2]=n[r+24>>2],n[A+236>>2]=t,S0(_,A+240|0,A+224|0),t=n[A+780>>2],n[r+24>>2]=n[A+776>>2],n[r+28>>2]=t,t=n[A+772>>2],n[r+16>>2]=n[A+768>>2],n[r+20>>2]=t,t=n[A+788>>2],n[A+208>>2]=n[A+784>>2],n[A+212>>2]=t,t=n[A+796>>2],n[A+216>>2]=n[A+792>>2],n[A+220>>2]=t,t=n[r+4>>2],n[A+192>>2]=n[r>>2],n[A+196>>2]=t,t=n[r+12>>2],n[A+200>>2]=n[r+8>>2],n[A+204>>2]=t,S0(_,A+208|0,A+192|0),t=n[A+768>>2],i=n[A+772>>2],y=n[A+776>>2],n[r+12>>2]=B^n[A+780>>2],n[r+8>>2]=y^u,n[r+4>>2]=i^O,n[r>>2]=t^g,t=n[r+92>>2],n[A+792>>2]=n[r+88>>2],n[A+796>>2]=t,t=n[r+84>>2],n[A+784>>2]=n[r+80>>2],n[A+788>>2]=t,t=n[e+4>>2],n[A+176>>2]=n[e>>2],n[A+180>>2]=t,t=n[e+12>>2],n[A+184>>2]=n[e+8>>2],n[A+188>>2]=t,t=n[r+92>>2],n[A+168>>2]=n[r+88>>2],n[A+172>>2]=t,t=n[r+84>>2],n[A+160>>2]=n[r+80>>2],n[A+164>>2]=t,S0(_,A+176|0,A+160|0),t=n[A+780>>2],n[r+88>>2]=n[A+776>>2],n[r+92>>2]=t,t=n[A+772>>2],n[r+80>>2]=n[A+768>>2],n[r+84>>2]=t,t=n[r+52>>2],n[A+144>>2]=n[r+48>>2],n[A+148>>2]=t,t=n[r+60>>2],n[A+152>>2]=n[r+56>>2],n[A+156>>2]=t,t=n[e+4>>2],n[A+128>>2]=n[e>>2],n[A+132>>2]=t,t=n[e+12>>2],n[A+136>>2]=n[e+8>>2],n[A+140>>2]=t,S0(_,A+144|0,A+128|0),t=n[A+780>>2],n[e+8>>2]=n[A+776>>2],n[e+12>>2]=t,t=n[A+772>>2],n[e>>2]=n[A+768>>2],n[e+4>>2]=t,t=n[r+36>>2],n[A+112>>2]=n[r+32>>2],n[A+116>>2]=t,t=n[r+44>>2],n[A+120>>2]=n[r+40>>2],n[A+124>>2]=t,t=n[r+52>>2],n[A+96>>2]=n[r+48>>2],n[A+100>>2]=t,t=n[r+60>>2],n[A+104>>2]=n[r+56>>2],n[A+108>>2]=t,S0(_,A+112|0,A+96|0),t=n[A+780>>2],n[r+56>>2]=n[A+776>>2],n[r+60>>2]=t,t=n[A+772>>2],n[r+48>>2]=n[A+768>>2],n[r+52>>2]=t,t=n[r+20>>2],n[A+80>>2]=n[r+16>>2],n[A+84>>2]=t,t=n[r+28>>2],n[A+88>>2]=n[r+24>>2],n[A+92>>2]=t,t=n[r+36>>2],n[A+64>>2]=n[r+32>>2],n[A+68>>2]=t,t=n[r+44>>2],n[A+72>>2]=n[r+40>>2],n[A+76>>2]=t,S0(_,A+80|0,A- -64|0),t=n[A+780>>2],n[r+40>>2]=n[A+776>>2],n[r+44>>2]=t,t=n[A+772>>2],n[r+32>>2]=n[A+768>>2],n[r+36>>2]=t,t=n[r+4>>2],n[A+48>>2]=n[r>>2],n[A+52>>2]=t,t=n[r+12>>2],n[A+56>>2]=n[r+8>>2],n[A+60>>2]=t,t=n[r+20>>2],n[A+32>>2]=n[r+16>>2],n[A+36>>2]=t,t=n[r+28>>2],n[A+40>>2]=n[r+24>>2],n[A+44>>2]=t,S0(_,A+48|0,A+32|0),t=n[A+780>>2],n[r+24>>2]=n[A+776>>2],n[r+28>>2]=t,t=n[A+772>>2],n[r+16>>2]=n[A+768>>2],n[r+20>>2]=t,t=n[A+788>>2],n[A+16>>2]=n[A+784>>2],n[A+20>>2]=t,t=n[A+796>>2],n[A+24>>2]=n[A+792>>2],n[A+28>>2]=t,t=n[r+4>>2],n[A>>2]=n[r>>2],n[A+4>>2]=t,t=n[r+12>>2],n[A+8>>2]=n[r+8>>2],n[A+12>>2]=t,S0(_,A+16|0,A),_=n[A+768>>2],t=n[A+772>>2],i=n[A+776>>2],n[r+12>>2]=f^n[A+780>>2],n[r+8>>2]=i^v,n[r+4>>2]=t^j,n[r>>2]=_^l,o=o+1|0,(o|0)!=4;);F=A+800|0}function a1(_){_=_|0;var e=0,r=0,A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0;l=F-16|0,F=l;r:{A:{n:{e:{t:{_:{o:{i:{B:{s:{if(_>>>0<=244){if(i=n[10173],o=_>>>0<11?16:_+11&504,_=o>>>3|0,e=i>>>_|0,e&3){t=_+((e^-1)&1)|0,e=t<<3,_=e+40732|0,r=n[e+40740>>2],A=n[r+8>>2];y:{if((_|0)==(A|0)){v=40692,f=b(-2,t)&i,n[v>>2]=f;break y}n[A+12>>2]=_,n[_+8>>2]=A}_=r+8|0,n[r+4>>2]=e|3,e=e+r|0,n[e+4>>2]=n[e+4>>2]|1;break r}if(u=n[10175],u>>>0>=o>>>0)break s;if(e){r=2<<_,t=oA((0-r|r)&e<<_),_=t<<3,e=_+40732|0,r=n[_+40740>>2],A=n[r+8>>2];y:{if((e|0)==(A|0)){i=b(-2,t)&i,n[10173]=i;break y}n[A+12>>2]=e,n[e+8>>2]=A}if(n[r+4>>2]=o|3,y=r+o|0,t=_-o|0,n[y+4>>2]=t|1,n[_+r>>2]=t,u){_=(u&-8)+40732|0,A=n[10178],e=1<<(u>>>3);y:{if(!(e&i)){n[10173]=e|i,e=_;break y}e=n[_+8>>2]}n[_+8>>2]=A,n[e+12>>2]=A,n[A+12>>2]=_,n[A+8>>2]=e}_=r+8|0,n[10178]=y,n[10175]=t;break r}if(j=n[10174],!j)break s;for(e=n[(oA(j)<<2)+40996>>2],t=(n[e+4>>2]&-8)-o|0,r=e;;){y:{if(_=n[e+16>>2],!_&&(_=n[e+20>>2],!_))break y;A=(n[_+4>>2]&-8)-o|0,e=A>>>0<t>>>0,t=e?A:t,r=e?_:r,e=_;continue}break}if(B=n[r+24>>2],_=n[r+12>>2],(r|0)!=(_|0)){e=n[r+8>>2],n[e+12>>2]=_,n[_+8>>2]=e;break A}if(e=n[r+20>>2],e)A=r+20|0;else{if(e=n[r+16>>2],!e)break B;A=r+16|0}for(;y=A,_=e,A=_+20|0,e=n[_+20>>2],!(!e&&(A=_+16|0,e=n[_+16>>2],!e)););n[y>>2]=0;break A}if(o=-1,_>>>0>4294967231||(e=_+11|0,o=e&-8,y=n[10174],!y))break s;u=31,t=0-o|0,_>>>0<=16777204&&(_=U1(e>>>8|0),u=((o>>>38-_&1)-(_<<1)|0)+62|0),e=n[(u<<2)+40996>>2];y:{h:{u:{if(!e){_=0;break u}for(_=0,r=o<<((u|0)!=31?25-(u>>>1|0)|0:0);;){l:{if(i=(n[e+4>>2]&-8)-o|0,i>>>0>=t>>>0||(A=e,t=i,t))break l;t=0,_=e;break h}if(i=n[e+20>>2],e=n[((r>>>29&4)+e|0)+16>>2],_=i?(i|0)==(e|0)?_:i:_,r=r<<1,!e)break}}if(!(_|A)){if(A=0,_=2<<u,_=(0-_|_)&y,!_)break s;_=n[(oA(_)<<2)+40996>>2]}if(!_)break y}for(;r=(n[_+4>>2]&-8)-o|0,e=r>>>0<t>>>0,t=e?r:t,A=e?_:A,e=n[_+16>>2],e?_=e:_=n[_+20>>2],!!_;);}if(!A|n[10175]-o>>>0<=t>>>0)break s;if(u=n[A+24>>2],_=n[A+12>>2],(A|0)!=(_|0)){e=n[A+8>>2],n[e+12>>2]=_,n[_+8>>2]=e;break n}if(e=n[A+20>>2],e)r=A+20|0;else{if(e=n[A+16>>2],!e)break i;r=A+16|0}for(;i=r,_=e,r=_+20|0,e=n[_+20>>2],!(!e&&(r=_+16|0,e=n[_+16>>2],!e)););n[i>>2]=0;break n}if(A=n[10175],A>>>0>=o>>>0){_=n[10178],e=A-o|0;s:{if(e>>>0>=16){r=_+o|0,n[r+4>>2]=e|1,n[_+A>>2]=e,n[_+4>>2]=o|3;break s}n[_+4>>2]=A|3,e=_+A|0,n[e+4>>2]=n[e+4>>2]|1,e=0,r=0}n[10175]=e,n[10178]=r,_=_+8|0;break r}if(r=n[10176],r>>>0>o>>>0){e=r-o|0,n[10176]=e,_=n[10179],r=_+o|0,n[10179]=r,n[r+4>>2]=e|1,n[_+4>>2]=o|3,_=_+8|0;break r}if(_=0,t=o+47|0,n[10291]?e=n[10293]:(n[10294]=-1,n[10295]=-1,n[10292]=4096,n[10293]=4096,n[10291]=l+12&-16^1431655768,n[10296]=0,n[10284]=0,e=4096),i=t+e|0,y=0-e|0,e=i&y,e>>>0<=o>>>0||(u=n[10283],u&&(B=n[10281],A=B+e|0,A>>>0<=B>>>0|A>>>0>u>>>0)))break r;s:{if(!(s[41136]&4)){y:{h:{u:{l:{if(A=n[10179],A)for(_=41140;;){if(u=n[_>>2],u>>>0<=A>>>0&A>>>0<u+n[_+4>>2]>>>0)break l;if(_=n[_+8>>2],!_)break}if(r=zr(0),(r|0)==-1||(i=e,_=n[10292],A=_-1|0,A&r&&(i=(e-r|0)+(r+A&0-_)|0),i>>>0<=o>>>0)||(A=n[10283],A&&(y=n[10281],_=y+i|0,_>>>0<=y>>>0|_>>>0>A>>>0)))break y;if(_=zr(i),(r|0)!=(_|0))break u;break s}if(i=y&i-r,r=zr(i),(r|0)==(n[_>>2]+n[_+4>>2]|0))break h;_=r}if((_|0)==-1)break y;if(o+48>>>0<=i>>>0){r=_;break s}if(r=n[10293],r=r+(t-i|0)&0-r,(zr(r)|0)==-1)break y;i=r+i|0,r=_;break s}if((r|0)!=-1)break s}n[10284]=n[10284]|4}if(r=zr(e),_=zr(0),(r|0)==-1|(_|0)==-1|_>>>0<=r>>>0||(i=_-r|0,i>>>0<=o+40>>>0))break t}_=n[10281]+i|0,n[10281]=_,_>>>0>p1[10282]&&(n[10282]=_);s:{if(t=n[10179],t){for(_=41140;;){if(e=n[_>>2],A=n[_+4>>2],(e+A|0)==(r|0))break s;if(_=n[_+8>>2],!_)break}break o}for(_=n[10177],_>>>0<=r>>>0&&_||(n[10177]=r),_=0,n[10286]=i,n[10285]=r,n[10181]=-1,n[10182]=n[10291],n[10288]=0;e=_<<3,A=e+40732|0,n[e+40740>>2]=A,n[e+40744>>2]=A,_=_+1|0,(_|0)!=32;);_=i-40|0,e=-8-r&7,A=_-e|0,n[10176]=A,e=e+r|0,n[10179]=e,n[e+4>>2]=A|1,n[(_+r|0)+4>>2]=40,n[10180]=n[10295];break _}if(n[_+12>>2]&8|(r>>>0<=t>>>0|e>>>0>t>>>0))break o;n[_+4>>2]=A+i,_=-8-t&7,e=_+t|0,n[10179]=e,r=n[10176]+i|0,_=r-_|0,n[10176]=_,n[e+4>>2]=_|1,n[(r+t|0)+4>>2]=40,n[10180]=n[10295];break _}_=0;break A}_=0;break n}p1[10177]>r>>>0&&(n[10177]=r),A=r+i|0,_=41140;o:{for(;;){if(e=n[_>>2],(e|0)!=(A|0)){if(_=n[_+8>>2],_)continue;break o}break}if(!(s[_+12|0]&8))break e}for(_=41140;;){o:{if(e=n[_>>2],e>>>0<=t>>>0&&(A=e+n[_+4>>2]|0,A>>>0>t>>>0))break o;_=n[_+8>>2];continue}break}for(_=i-40|0,e=-8-r&7,y=_-e|0,n[10176]=y,e=e+r|0,n[10179]=e,n[e+4>>2]=y|1,n[(_+r|0)+4>>2]=40,n[10180]=n[10295],_=(A+(39-A&7)|0)-47|0,e=_>>>0<t+16>>>0?t:_,n[e+4>>2]=27,_=n[10288],n[e+16>>2]=n[10287],n[e+20>>2]=_,_=n[10286],n[e+8>>2]=n[10285],n[e+12>>2]=_,n[10287]=e+8,n[10286]=i,n[10285]=r,n[10288]=0,_=e+24|0;n[_+4>>2]=7,r=_+8|0,_=_+4|0,r>>>0<A>>>0;);if((e|0)==(t|0))break _;n[e+4>>2]=n[e+4>>2]&-2,r=e-t|0,n[t+4>>2]=r|1,n[e>>2]=r;o:{if(r>>>0<=255){_=(r&248)+40732|0,e=n[10173],r=1<<(r>>>3);i:{if(!(e&r)){n[10173]=e|r,e=_;break i}e=n[_+8>>2]}n[_+8>>2]=t,n[e+12>>2]=t,A=8,r=12;break o}_=31,r>>>0<=16777215&&(_=U1(r>>>8|0),_=(r>>>38-_&1|_<<1)^62),n[t+28>>2]=_,n[t+16>>2]=0,n[t+20>>2]=0,e=(_<<2)+40996|0;i:{A=n[10174],i=1<<_;B:{if(!(A&i)){n[10174]=A|i,n[e>>2]=t;break B}for(_=r<<((_|0)!=31?25-(_>>>1|0)|0:0),A=n[e>>2];;){if(e=A,(r|0)==(n[e+4>>2]&-8))break i;if(A=_>>>29|0,_=_<<1,i=(A&4)+e|0,A=n[i+16>>2],!A)break}n[i+16>>2]=t}n[t+24>>2]=e,e=t,_=e,A=12,r=8;break o}_=n[e+8>>2],n[_+12>>2]=t,n[e+8>>2]=t,n[t+8>>2]=_,_=0,A=12,r=24}n[t+A>>2]=e,n[r+t>>2]=_}if(_=n[10176],_>>>0<=o>>>0)break t;e=_-o|0,n[10176]=e,_=n[10179],r=_+o|0,n[10179]=r,n[r+4>>2]=e|1,n[_+4>>2]=o|3,_=_+8|0;break r}n[10172]=48,_=0;break r}n[_>>2]=r,n[_+4>>2]=n[_+4>>2]+i,u=(-8-r&7)+r|0,n[u+4>>2]=o|3,i=e+(-8-e&7)|0,t=o+u|0,y=i-t|0;e:{if(n[10179]==(i|0)){n[10179]=t,_=n[10176]+y|0,n[10176]=_,n[t+4>>2]=_|1;break e}if(n[10178]==(i|0)){n[10178]=t,_=n[10175]+y|0,n[10175]=_,n[t+4>>2]=_|1,n[_+t>>2]=_;break e}if(_=n[i+4>>2],(_&3)==1){B=_&-8,r=n[i+12>>2];t:{if(_>>>0<=255){if(e=n[i+8>>2],(e|0)==(r|0)){v=40692,f=n[10173]&b(-2,_>>>3|0),n[v>>2]=f;break t}n[e+12>>2]=r,n[r+8>>2]=e;break t}o=n[i+24>>2];_:{if((r|0)!=(i|0)){_=n[i+8>>2],n[_+12>>2]=r,n[r+8>>2]=_;break _}o:{if(_=n[i+20>>2],_)e=i+20|0;else{if(_=n[i+16>>2],!_)break o;e=i+16|0}for(;A=e,r=_,e=_+20|0,_=n[_+20>>2],!(!_&&(e=r+16|0,_=n[r+16>>2],!_)););n[A>>2]=0;break _}r=0}if(!o)break t;_=n[i+28>>2],e=_<<2;_:{if(n[e+40996>>2]==(i|0)){if(n[e+40996>>2]=r,r)break _;v=40696,f=n[10174]&b(-2,_),n[v>>2]=f;break t}o:{if(n[o+16>>2]==(i|0)){n[o+16>>2]=r;break o}n[o+20>>2]=r}if(!r)break t}if(n[r+24>>2]=o,_=n[i+16>>2],_&&(n[r+16>>2]=_,n[_+24>>2]=r),_=n[i+20>>2],!_)break t;n[r+20>>2]=_,n[_+24>>2]=r}y=y+B|0,i=i+B|0,_=n[i+4>>2]}if(n[i+4>>2]=_&-2,n[t+4>>2]=y|1,n[t+y>>2]=y,y>>>0<=255){_=(y&248)+40732|0,e=n[10173],r=1<<(y>>>3);t:{if(!(e&r)){n[10173]=e|r,e=_;break t}e=n[_+8>>2]}n[_+8>>2]=t,n[e+12>>2]=t,n[t+12>>2]=_,n[t+8>>2]=e;break e}r=31,y>>>0<=16777215&&(_=U1(y>>>8|0),r=(y>>>38-_&1|_<<1)^62),n[t+28>>2]=r,n[t+16>>2]=0,n[t+20>>2]=0,_=(r<<2)+40996|0;t:{e=n[10174],A=1<<r;_:{if(!(e&A)){n[10174]=e|A,n[_>>2]=t;break _}for(r=y<<((r|0)!=31?25-(r>>>1|0)|0:0),e=n[_>>2];;){if(_=e,(n[_+4>>2]&-8)==(y|0))break t;if(e=r>>>29|0,r=r<<1,A=(e&4)+_|0,e=n[A+16>>2],!e)break}n[A+16>>2]=t}n[t+24>>2]=_,n[t+12>>2]=t,n[t+8>>2]=t;break e}e=n[_+8>>2],n[e+12>>2]=t,n[_+8>>2]=t,n[t+24>>2]=0,n[t+12>>2]=_,n[t+8>>2]=e}_=u+8|0;break r}n:{if(!u)break n;e=n[A+28>>2],r=e<<2;e:{if(n[r+40996>>2]==(A|0)){if(n[r+40996>>2]=_,_)break e;y=b(-2,e)&y,n[10174]=y;break n}t:{if(n[u+16>>2]==(A|0)){n[u+16>>2]=_;break t}n[u+20>>2]=_}if(!_)break n}if(n[_+24>>2]=u,e=n[A+16>>2],e&&(n[_+16>>2]=e,n[e+24>>2]=_),e=n[A+20>>2],!e)break n;n[_+20>>2]=e,n[e+24>>2]=_}n:{if(t>>>0<=15){_=t+o|0,n[A+4>>2]=_|3,_=_+A|0,n[_+4>>2]=n[_+4>>2]|1;break n}if(n[A+4>>2]=o|3,i=A+o|0,n[i+4>>2]=t|1,n[t+i>>2]=t,t>>>0<=255){_=(t&248)+40732|0,e=n[10173],r=1<<(t>>>3);e:{if(!(e&r)){n[10173]=e|r,e=_;break e}e=n[_+8>>2]}n[_+8>>2]=i,n[e+12>>2]=i,n[i+12>>2]=_,n[i+8>>2]=e;break n}_=31,t>>>0<=16777215&&(_=U1(t>>>8|0),_=(t>>>38-_&1|_<<1)^62),n[i+28>>2]=_,n[i+16>>2]=0,n[i+20>>2]=0,e=(_<<2)+40996|0;e:{r=1<<_;t:{if(!(r&y)){n[10174]=r|y,n[e>>2]=i,n[i+24>>2]=e;break t}for(_=t<<((_|0)!=31?25-(_>>>1|0)|0:0),e=n[e>>2];;){if(r=e,(n[e+4>>2]&-8)==(t|0))break e;if(y=_>>>29|0,_=_<<1,y=e+(y&4)|0,e=n[y+16>>2],!e)break}n[y+16>>2]=i,n[i+24>>2]=r}n[i+12>>2]=i,n[i+8>>2]=i;break n}_=n[r+8>>2],n[_+12>>2]=i,n[r+8>>2]=i,n[i+24>>2]=0,n[i+12>>2]=r,n[i+8>>2]=_}_=A+8|0;break r}A:{if(!B)break A;e=n[r+28>>2],A=e<<2;n:{if(n[A+40996>>2]==(r|0)){if(n[A+40996>>2]=_,_)break n;v=40696,f=b(-2,e)&j,n[v>>2]=f;break A}e:{if(n[B+16>>2]==(r|0)){n[B+16>>2]=_;break e}n[B+20>>2]=_}if(!_)break A}if(n[_+24>>2]=B,e=n[r+16>>2],e&&(n[_+16>>2]=e,n[e+24>>2]=_),e=n[r+20>>2],!e)break A;n[_+20>>2]=e,n[e+24>>2]=_}A:{if(t>>>0<=15){_=t+o|0,n[r+4>>2]=_|3,_=_+r|0,n[_+4>>2]=n[_+4>>2]|1;break A}if(n[r+4>>2]=o|3,y=r+o|0,n[y+4>>2]=t|1,n[t+y>>2]=t,u){_=(u&-8)+40732|0,A=n[10178],e=1<<(u>>>3);n:{if(!(e&i)){n[10173]=e|i,e=_;break n}e=n[_+8>>2]}n[_+8>>2]=A,n[e+12>>2]=A,n[A+12>>2]=_,n[A+8>>2]=e}n[10178]=y,n[10175]=t}_=r+8|0}return F=l+16|0,_|0}function k4(_,e){var r=0,A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0,x=0,z=0,$=0,J=0,A0=0,n0=0,t0=0,_0=0,s0=0,o0=0,B0=0,u0=0,l0=0,j0=0,v0=0,f0=0,c0=0,q0=0,P0=0,m0=0,C0=0,M0=0,I0=0,G0=0,d0=0,L0=0,F0=0;for(v=F-48|0,F=v,t=s[e+28|0]|s[e+29|0]<<8|(s[e+30|0]<<16|s[e+31|0]<<24),A=s[e+24|0]|s[e+25|0]<<8|(s[e+26|0]<<16|s[e+27|0]<<24),h[_+24|0]=A,h[_+25|0]=A>>>8,h[_+26|0]=A>>>16,h[_+27|0]=A>>>24,h[_+28|0]=t,h[_+29|0]=t>>>8,h[_+30|0]=t>>>16,h[_+31|0]=t>>>24,t=s[e+20|0]|s[e+21|0]<<8|(s[e+22|0]<<16|s[e+23|0]<<24),A=s[e+16|0]|s[e+17|0]<<8|(s[e+18|0]<<16|s[e+19|0]<<24),h[_+16|0]=A,h[_+17|0]=A>>>8,h[_+18|0]=A>>>16,h[_+19|0]=A>>>24,h[_+20|0]=t,h[_+21|0]=t>>>8,h[_+22|0]=t>>>16,h[_+23|0]=t>>>24,t=s[e+12|0]|s[e+13|0]<<8|(s[e+14|0]<<16|s[e+15|0]<<24),A=s[e+8|0]|s[e+9|0]<<8|(s[e+10|0]<<16|s[e+11|0]<<24),h[_+8|0]=A,h[_+9|0]=A>>>8,h[_+10|0]=A>>>16,h[_+11|0]=A>>>24,h[_+12|0]=t,h[_+13|0]=t>>>8,h[_+14|0]=t>>>16,h[_+15|0]=t>>>24,A=s[e+4|0]|s[e+5|0]<<8|(s[e+6|0]<<16|s[e+7|0]<<24),e=s[e|0]|s[e+1|0]<<8|(s[e+2|0]<<16|s[e+3|0]<<24),h[_|0]=e,h[_+1|0]=e>>>8,h[_+2|0]=e>>>16,h[_+3|0]=e>>>24,h[_+4|0]=A,h[_+5|0]=A>>>8,h[_+6|0]=A>>>16,h[_+7|0]=A>>>24,e=s[_+31|0],h[_+31|0]=e&127,qr(v,_),f0=e&128,e=F-960|0,F=e,A=e+304|0,a4(A,v),n[e+304>>2]=n[e+304>>2]+1,Tr(A,A),A=n[e+340>>2],t=q(A,A>>31,486662,0),A=p,j=t+16777216|0,B=j>>>0<16777216?A+1|0:A,l=t-(j&-33554432)|0,A=n[e+336>>2],r=q(A,A>>31,486662,0),t=p,A=n[e+332>>2],i=q(A,A>>31,486662,0),A=p,u=r,y=i+16777216|0,A=y>>>0<16777216?A+1|0:A,r=A>>25,A=(A&33554431)<<7|y>>>25,o=u+A|0,r=r+t|0,A=A>>>0>o>>>0?r+1|0:r,t=o+33554432|0,A=t>>>0<33554432?A+1|0:A,f=((A&67108863)<<6|t>>>26)+l|0,g=0-f|0,n[e+292>>2]=g,T=o-(t&-67108864)|0,m=0-T|0,n[e+288>>2]=m,l=i-(y&-33554432)|0,A=n[e+328>>2],t=q(A,A>>31,486662,0),A=p,r=n[e+324>>2],y=q(r,r>>31,486662,0),r=p,u=t,o=y+16777216|0,r=o>>>0<16777216?r+1|0:r,t=r>>25,i=(r&33554431)<<7|o>>>25,r=u+i|0,A=A+t|0,A=r>>>0<i>>>0?A+1|0:A,t=r+33554432|0,A=t>>>0<33554432?A+1|0:A,M=((A&67108863)<<6|t>>>26)+l|0,C=0-M|0,n[e+284>>2]=C,G=r-(t&-67108864)|0,d=0-G|0,n[e+280>>2]=d,l=y-(o&-33554432)|0,A=n[e+320>>2],r=q(A,A>>31,486662,0),A=p,t=n[e+316>>2],y=q(t,t>>31,486662,0),t=p,u=r,o=y+16777216|0,t=o>>>0<16777216?t+1|0:t,r=t>>25,i=(t&33554431)<<7|o>>>25,t=u+i|0,A=r+A|0,A=t>>>0<i>>>0?A+1|0:A,r=A,i=t+33554432|0,r=i>>>0<33554432?r+1|0:r,X=((r&67108863)<<6|i>>>26)+l|0,K=0-X|0,n[e+276>>2]=K,O=t-(i&-67108864)|0,U=0-O|0,n[e+272>>2]=U,u=y-(o&-33554432)|0,A=n[e+312>>2],A=q(A,A>>31,486662,0),l=p,t=n[e+308>>2],i=q(t,t>>31,486662,0),r=p,y=i+16777216|0,r=y>>>0<16777216?r+1|0:r,t=(r&33554431)<<7|y>>>25,o=t+A|0,r=(r>>25)+l|0,t=t>>>0>o>>>0?r+1|0:r,A=o+33554432|0,t=A>>>0<33554432?t+1|0:t,x=((t&67108863)<<6|A>>>26)+u|0,z=0-x|0,n[e+268>>2]=z,$=o-(A&-67108864)|0,J=0-$|0,n[e+264>>2]=J,o=i-(y&-33554432)|0,t=q((B&33554431)<<7|j>>>25,B>>25,19,0),A=p,i=t,r=n[e+304>>2],t=q(r,r>>31,486662,0),r=i+t|0,A=p+A|0,t=r>>>0<t>>>0?A+1|0:A,A=r+33554432|0,t=A>>>0<33554432?t+1|0:t,A0=((t&67108863)<<6|A>>>26)+o|0,n0=0-A0|0,n[e+260>>2]=n0,t0=r-(A&-67108864)|0,_0=0-t0|0,n[e+256>>2]=_0,t=e+208|0,A=e+256|0,N(t,A),r0(e+160|0,A,t),c0=n[e+196>>2],q0=n[e+160>>2],o0=n[e+208>>2],P0=n[e+164>>2],m0=n[e+168>>2],B0=n[e+212>>2],u0=n[e+216>>2],C0=n[e+172>>2],M0=n[e+176>>2],l0=n[e+220>>2],j0=n[e+224>>2],I0=n[e+180>>2],G0=n[e+184>>2],u=n[e+228>>2],l=n[e+232>>2],d0=n[e+188>>2],L0=n[e+192>>2],A=n[e+244>>2],t=q(A,A>>31,486662,0),A=p,j=t+16777216|0,B=j>>>0<16777216?A+1|0:A,F0=t-(j&-33554432)|0,A=n[e+240>>2],A=q(A,A>>31,486662,0),s0=p,t=n[e+236>>2],i=q(t,t>>31,486662,0),r=p,t=A,y=i+16777216|0,r=y>>>0<16777216?r+1|0:r,A=(r&33554431)<<7|y>>>25,o=t+A|0,r=(r>>25)+s0|0,A=A>>>0>o>>>0?r+1|0:r,t=o+33554432|0,A=t>>>0<33554432?A+1|0:A,r=((A&67108863)<<6|t>>>26)+F0|0,n[e+244>>2]=r,n[e+388>>2]=r+(c0-f|0),A=o-(t&-67108864)|0,n[e+240>>2]=A,n[e+384>>2]=A+(L0-T|0),s0=i-(y&-33554432)|0,A=q(l,l>>31,486662,0),i=p,y=q(u,u>>31,486662,0),t=p,u=A,o=y+16777216|0,t=o>>>0<16777216?t+1|0:t,A=t>>25,r=(t&33554431)<<7|o>>>25,t=u+r|0,A=A+i|0,A=r>>>0>t>>>0?A+1|0:A,r=A,i=t+33554432|0,r=i>>>0<33554432?r+1|0:r,A=i,i=((r&67108863)<<6|A>>>26)+s0|0,n[e+236>>2]=i,n[e+380>>2]=i+(d0-M|0),A=t-(A&-67108864)|0,n[e+232>>2]=A,n[e+376>>2]=A+(G0-G|0),l=y-(o&-33554432)|0,r=q(j0,j0>>31,486662,0),t=p,i=q(l0,l0>>31,486662,0),A=p,u=r,y=i+16777216|0,A=y>>>0<16777216?A+1|0:A,r=A>>25,A=(A&33554431)<<7|y>>>25,o=u+A|0,r=r+t|0,t=A>>>0>o>>>0?r+1|0:r,A=o+33554432|0,t=A>>>0<33554432?t+1|0:t,r=((t&67108863)<<6|A>>>26)+l|0,n[e+228>>2]=r,n[e+372>>2]=r+(I0-X|0),A=o-(A&-67108864)|0,n[e+224>>2]=A,n[e+368>>2]=A+(M0-O|0),l=i-(y&-33554432)|0,A=q(u0,u0>>31,486662,0),t=p,y=q(B0,B0>>31,486662,0),r=p,u=A,o=y+16777216|0,r=o>>>0<16777216?r+1|0:r,A=r>>25,i=(r&33554431)<<7|o>>>25,r=u+i|0,t=A+t|0,t=r>>>0<i>>>0?t+1|0:t,A=t,i=r+33554432|0,A=i>>>0<33554432?A+1|0:A,t=i,i=((A&67108863)<<6|t>>>26)+l|0,n[e+220>>2]=i,n[e+364>>2]=i+(C0-x|0),A=r-(t&-67108864)|0,n[e+216>>2]=A,n[e+360>>2]=A+(m0-$|0),o=y-(o&-33554432)|0,t=q((B&33554431)<<7|j>>>25,B>>25,19,0),A=p,r=t,t=q(o0,o0>>31,486662,0),r=r+t|0,A=p+A|0,A=r>>>0<t>>>0?A+1|0:A,t=r+33554432|0,A=t>>>0<33554432?A+1|0:A,B=((A&67108863)<<6|t>>>26)+o|0,n[e+212>>2]=B,n[e+356>>2]=B+(P0-A0|0),A=r-(t&-67108864)|0,n[e+208>>2]=A,n[e+352>>2]=A+(q0-t0|0),A=e+624|0,t=e+352|0,r0(A,t,t),r0(e,t,A),t=e+784|0,N(t,e),N(t,t),A=e+912|0,r0(A,e,t),t=e+576|0,N(t,A),N(t,t),N(t,t),N(t,t),r=e+528|0,r0(r,A,t),N(r,r),N(r,r),r0(r,r,e),A=n[e+564>>2],n[e+512>>2]=n[e+560>>2],n[e+516>>2]=A,A=n[e+556>>2],n[e+504>>2]=n[e+552>>2],n[e+508>>2]=A,A=n[e+548>>2],n[e+496>>2]=n[e+544>>2],n[e+500>>2]=A,A=n[e+540>>2],n[e+488>>2]=n[e+536>>2],n[e+492>>2]=A,A=n[e+532>>2],n[e+480>>2]=n[e+528>>2],n[e+484>>2]=A,N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),A=e+480|0,r0(r,r,A),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),r0(r,r,A),A=n[e+564>>2],n[e+464>>2]=n[e+560>>2],n[e+468>>2]=A,A=n[e+556>>2],n[e+456>>2]=n[e+552>>2],n[e+460>>2]=A,A=n[e+548>>2],n[e+448>>2]=n[e+544>>2],n[e+452>>2]=A,A=n[e+540>>2],n[e+440>>2]=n[e+536>>2],n[e+444>>2]=A,A=n[e+532>>2],n[e+432>>2]=n[e+528>>2],n[e+436>>2]=A,N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),t=e+432|0,r0(r,r,t),A=n[e+564>>2],n[e+464>>2]=n[e+560>>2],n[e+468>>2]=A,A=n[e+556>>2],n[e+456>>2]=n[e+552>>2],n[e+460>>2]=A,A=n[e+548>>2],n[e+448>>2]=n[e+544>>2],n[e+452>>2]=A,A=n[e+540>>2],n[e+440>>2]=n[e+536>>2],n[e+444>>2]=A,A=n[e+532>>2],n[e+432>>2]=n[e+528>>2],n[e+436>>2]=A,N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),r0(r,r,t),A=n[e+564>>2],n[e+464>>2]=n[e+560>>2],n[e+468>>2]=A,A=n[e+556>>2],n[e+456>>2]=n[e+552>>2],n[e+460>>2]=A,A=n[e+548>>2],n[e+448>>2]=n[e+544>>2],n[e+452>>2]=A,A=n[e+540>>2],n[e+440>>2]=n[e+536>>2],n[e+444>>2]=A,A=n[e+532>>2],n[e+432>>2]=n[e+528>>2],n[e+436>>2]=A;A=e+528|0,N(A,A),v0=v0+1|0,(v0|0)!=120;);r0(A,A,e+432|0),N(A,A),N(A,A),N(A,A),N(A,A),N(A,A),N(A,A),N(A,A),N(A,A),N(A,A),N(A,A),r0(A,A,e+480|0),N(A,A),N(A,A),N(A,A),r0(A,A,e),N(A,A),G2(e+400|0,A),A=0-(h[e+401|0]&1)|0,u=g^A&(f^g),n[e+660>>2]=u,l=m^A&(T^m),n[e+656>>2]=l,j=C^A&(M^C),n[e+652>>2]=j,i=A&(G^d)^d,n[e+648>>2]=i,y=A&(X^K)^K,n[e+644>>2]=y,o=A&(O^U)^U,n[e+640>>2]=o,B=A&(x^z)^z,n[e+636>>2]=B,r=A&($^J)^J,n[e+632>>2]=r,t=A&(A0^n0)^n0,n[e+628>>2]=t,A=(A&(t0^_0)^_0)-(A&486662)|0,n[e+624>>2]=A+1,n[e+820>>2]=u,n[e+816>>2]=l,n[e+812>>2]=j,n[e+808>>2]=i,n[e+804>>2]=y,n[e+800>>2]=o,n[e+796>>2]=B,n[e+792>>2]=r,n[e+788>>2]=t,n[e+784>>2]=A-1,Tr(e,e+624|0),A=e+912|0,r0(A,e+784|0,e),G2(_,A),h[_+31|0]=s[_+31|0]|f0,Pr(e,_)&&(De(),c2()),A=n[e+36>>2],n[e+816>>2]=n[e+32>>2],n[e+820>>2]=A,A=n[e+28>>2],n[e+808>>2]=n[e+24>>2],n[e+812>>2]=A,A=n[e+20>>2],n[e+800>>2]=n[e+16>>2],n[e+804>>2]=A,A=n[e+12>>2],n[e+792>>2]=n[e+8>>2],n[e+796>>2]=A,A=n[e+4>>2],n[e+784>>2]=n[e>>2],n[e+788>>2]=A,A=n[e+44>>2],n[e+824>>2]=n[e+40>>2],n[e+828>>2]=A,A=n[e+52>>2],n[e+832>>2]=n[e+48>>2],n[e+836>>2]=A,A=n[e+60>>2],n[e+840>>2]=n[e+56>>2],n[e+844>>2]=A,A=n[e+68>>2],n[e+848>>2]=n[e+64>>2],n[e+852>>2]=A,A=n[e+76>>2],n[e+856>>2]=n[e+72>>2],n[e+860>>2]=A,A=n[e+116>>2],n[e+896>>2]=n[e+112>>2],n[e+900>>2]=A,A=n[e+108>>2],n[e+888>>2]=n[e+104>>2],n[e+892>>2]=A,A=n[e+100>>2],n[e+880>>2]=n[e+96>>2],n[e+884>>2]=A,A=n[e+92>>2],n[e+872>>2]=n[e+88>>2],n[e+876>>2]=A,A=n[e+84>>2],n[e+864>>2]=n[e+80>>2],n[e+868>>2]=A,i=e+624|0,y=e+784|0,A1(i,y),o=e+744|0,r0(y,i,o),t=e+824|0,r=e+664|0,B=e+704|0,r0(t,r,B),A=e+864|0,r0(A,B,o),A1(i,y),r0(y,i,o),r0(t,r,B),r0(A,B,o),A1(i,y),r0(e,i,o),t=e+40|0,r0(t,r,B),A=e+80|0,r0(A,B,o),r0(e+120|0,i,r),Tr(i,A),r0(y,e,i),A=e+912|0,r0(A,t,i),G2(_,A),G2(e+576|0,y),h[_+31|0]=s[_+31|0]^s[e+576|0]<<7,F=e+960|0,F=v+48|0}function wA(_,e,r,A,t,i){var o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0,x=0,z=0,$=0,J=0,A0=0,n0=0,t0=0,_0=0,s0=0,o0=0,B0=0,u0=0,l0=0,j0=0,v0=0,f0=0,c0=0,q0=0,P0=0,m0=0,C0=0;n0=F-592|0,F=n0,B=-1,y=_+32|0;r:{if(!Pn(y)||l6(_)||!KA(t)||l6(t)||(l=n0+128|0,O4(l,t)))break r;for(B=n0+384|0,pr(B),i&&J2(B,39696,34,0),J2(B,_,32,0),J2(B,t,32,0),J2(B,e,r,A),A=n0+320|0,k1(B,A),er(A),B=n0+8|0,r=y,t=0,e=0,o=F-2272|0,F=o;i=o+2016|0,y=s[A+(t>>>3|0)|0],h[i+t|0]=y>>>(t&6)&1,u=i,i=t|1,h[u+i|0]=y>>>(i&7)&1,t=t+2|0,(t|0)!=256;);for(i=254;;){A=e,e=A+1|0,t=o+2016|0,f=t+A|0;A:{if(!s[f|0]|A>>>0>254)break A;j=e+t|0,t=h[j|0];n:{if(!t)break n;if(u=t<<1,y=h[f|0],t=u+y|0,(t|0)<=15){h[f|0]=t,h[j|0]=0;break n}if(t=y-u|0,(t|0)<-15)break A;for(h[f|0]=t,t=e;;){if(y=(o+2016|0)+t|0,!s[y|0]){h[y|0]=1;break n}if(h[y|0]=0,t=t+1|0,(t|0)==256)break}}if(!i)break A;t=A+2|0,M=t+(o+2016|0)|0,y=h[M|0];n:{if(!y)break n;if(j=y<<2,u=h[f|0],y=j+u|0,(y|0)>=16){if(y=u-j|0,(y|0)<-15)break A;for(h[f|0]=y;;){if(y=(o+2016|0)+t|0,s[y|0]){if(h[y|0]=0,t=t+1|0,(t|0)!=256)continue;break n}break}h[y|0]=1;break n}h[f|0]=y,h[M|0]=0}if(v=(i>>>0>=5?5:i)+1|0,(v|0)==2)break A;t=A+3|0,M=t+(o+2016|0)|0,y=h[M|0];n:{if(!y)break n;if(j=y<<3,u=h[f|0],y=j+u|0,(y|0)>=16){if(y=u-j|0,(y|0)<-15)break A;for(h[f|0]=y;;){if(y=(o+2016|0)+t|0,s[y|0]){if(h[y|0]=0,t=t+1|0,(t|0)!=256)continue;break n}break}h[y|0]=1;break n}h[f|0]=y,h[M|0]=0}if((v|0)==3)break A;t=A+4|0,M=t+(o+2016|0)|0,y=h[M|0];n:{if(!y)break n;if(j=y<<4,u=h[f|0],y=j+u|0,(y|0)>=16){if(y=u-j|0,(y|0)<-15)break A;for(h[f|0]=y;;){if(y=(o+2016|0)+t|0,s[y|0]){if(h[y|0]=0,t=t+1|0,(t|0)!=256)continue;break n}break}h[y|0]=1;break n}h[f|0]=y,h[M|0]=0}if((v|0)==4)break A;t=A+5|0,M=t+(o+2016|0)|0,y=h[M|0];n:{if(!y)break n;if(j=y<<5,u=h[f|0],y=j+u|0,(y|0)>=16){if(y=u-j|0,(y|0)<-15)break A;for(h[f|0]=y;;){if(y=(o+2016|0)+t|0,s[y|0]){if(h[y|0]=0,t=t+1|0,(t|0)!=256)continue;break n}break}h[y|0]=1;break n}h[f|0]=y,h[M|0]=0}if((v|0)==5||(t=A+6|0,j=t+(o+2016|0)|0,A=h[j|0],!A))break A;if(u=A<<6,y=h[f|0],A=u+y|0,(A|0)>=16){if(A=y-u|0,(A|0)<-15)break A;for(h[f|0]=A;;){if(A=(o+2016|0)+t|0,s[A|0]){if(h[A|0]=0,t=t+1|0,(t|0)!=256)continue;break A}break}h[A|0]=1;break A}h[f|0]=A,h[j|0]=0}if(i=i-1|0,(e|0)==256)break}for(t=0;e=o+1760|0,A=s[r+(t>>>3|0)|0],h[e+t|0]=A>>>(t&6)&1,i=e,e=t|1,h[i+e|0]=A>>>(e&7)&1,t=t+2|0,(t|0)!=256;);for(e=0,i=254;;){r=e,e=e+1|0,A=o+1760|0,v=A+r|0;A:{if(!s[v|0]|r>>>0>254)break A;u=e+A|0,A=h[u|0];n:{if(!A)break n;if(y=A<<1,t=h[v|0],A=y+t|0,(A|0)<=15){h[v|0]=A,h[u|0]=0;break n}if(A=t-y|0,(A|0)<-15)break A;for(h[v|0]=A,t=e;;){if(A=(o+1760|0)+t|0,!s[A|0]){h[A|0]=1;break n}if(h[A|0]=0,t=t+1|0,(t|0)==256)break}}if(!i)break A;t=r+2|0,j=t+(o+1760|0)|0,A=h[j|0];n:{if(!A)break n;if(u=A<<2,y=h[v|0],A=u+y|0,(A|0)>=16){if(A=y-u|0,(A|0)<-15)break A;for(h[v|0]=A;;){if(A=(o+1760|0)+t|0,s[A|0]){if(h[A|0]=0,t=t+1|0,(t|0)!=256)continue;break n}break}h[A|0]=1;break n}h[v|0]=A,h[j|0]=0}if(M=(i>>>0>=5?5:i)+1|0,(M|0)==2)break A;t=r+3|0,j=t+(o+1760|0)|0,A=h[j|0];n:{if(!A)break n;if(u=A<<3,y=h[v|0],A=u+y|0,(A|0)>=16){if(A=y-u|0,(A|0)<-15)break A;for(h[v|0]=A;;){if(A=(o+1760|0)+t|0,s[A|0]){if(h[A|0]=0,t=t+1|0,(t|0)!=256)continue;break n}break}h[A|0]=1;break n}h[v|0]=A,h[j|0]=0}if((M|0)==3)break A;t=r+4|0,j=t+(o+1760|0)|0,A=h[j|0];n:{if(!A)break n;if(u=A<<4,y=h[v|0],A=u+y|0,(A|0)>=16){if(A=y-u|0,(A|0)<-15)break A;for(h[v|0]=A;;){if(A=(o+1760|0)+t|0,s[A|0]){if(h[A|0]=0,t=t+1|0,(t|0)!=256)continue;break n}break}h[A|0]=1;break n}h[v|0]=A,h[j|0]=0}if((M|0)==4)break A;t=r+5|0,j=t+(o+1760|0)|0,A=h[j|0];n:{if(!A)break n;if(u=A<<5,y=h[v|0],A=u+y|0,(A|0)>=16){if(A=y-u|0,(A|0)<-15)break A;for(h[v|0]=A;;){if(A=(o+1760|0)+t|0,s[A|0]){if(h[A|0]=0,t=t+1|0,(t|0)!=256)continue;break n}break}h[A|0]=1;break n}h[v|0]=A,h[j|0]=0}if((M|0)==5||(t=r+6|0,u=t+(o+1760|0)|0,r=h[u|0],!r))break A;if(y=r<<6,A=h[v|0],r=y+A|0,(r|0)>=16){if(r=A-y|0,(r|0)<-15)break A;for(h[v|0]=r;;){if(r=(o+1760|0)+t|0,s[r|0]){if(h[r|0]=0,t=t+1|0,(t|0)!=256)continue;break A}break}h[r|0]=1;break A}h[v|0]=r,h[u|0]=0}if(i=i-1|0,(e|0)==256)break}for(A=o+480|0,L2(A,l),e=n[l+36>>2],n[o+192>>2]=n[l+32>>2],n[o+196>>2]=e,e=n[l+28>>2],n[o+184>>2]=n[l+24>>2],n[o+188>>2]=e,e=n[l+20>>2],n[o+176>>2]=n[l+16>>2],n[o+180>>2]=e,e=n[l+12>>2],n[o+168>>2]=n[l+8>>2],n[o+172>>2]=e,e=n[l+4>>2],n[o+160>>2]=n[l>>2],n[o+164>>2]=e,e=n[l+44>>2],n[o+200>>2]=n[l+40>>2],n[o+204>>2]=e,e=n[l+52>>2],n[o+208>>2]=n[l+48>>2],n[o+212>>2]=e,e=n[l+60>>2],n[o+216>>2]=n[l+56>>2],n[o+220>>2]=e,r=l- -64|0,e=n[r+4>>2],n[o+224>>2]=n[r>>2],n[o+228>>2]=e,e=n[l+76>>2],n[o+232>>2]=n[l+72>>2],n[o+236>>2]=e,e=n[l+84>>2],n[o+240>>2]=n[l+80>>2],n[o+244>>2]=e,e=n[l+92>>2],n[o+248>>2]=n[l+88>>2],n[o+252>>2]=e,e=n[l+100>>2],n[o+256>>2]=n[l+96>>2],n[o+260>>2]=e,e=n[l+108>>2],n[o+264>>2]=n[l+104>>2],n[o+268>>2]=e,e=n[l+116>>2],n[o+272>>2]=n[l+112>>2],n[o+276>>2]=e,t=o+320|0,r=o+160|0,A1(t,r),g=o+440|0,r0(o,t,g),T=o+360|0,m=o+400|0,r0(o+40|0,T,m),r0(o+80|0,m,g),r0(o+120|0,t,T),O2(t,o,A),r0(r,t,g),G=o+200|0,r0(G,T,m),d=o+240|0,r0(d,m,g),C=o+280|0,r0(C,t,T),e=o+640|0,L2(e,r),O2(t,o,e),r0(r,t,g),r0(G,T,m),r0(d,m,g),r0(C,t,T),e=o+800|0,L2(e,r),O2(t,o,e),r0(r,t,g),r0(G,T,m),r0(d,m,g),r0(C,t,T),e=o+960|0,L2(e,r),O2(t,o,e),r0(r,t,g),r0(G,T,m),r0(d,m,g),r0(C,t,T),e=o+1120|0,L2(e,r),O2(t,o,e),r0(r,t,g),r0(G,T,m),r0(d,m,g),r0(C,t,T),e=o+1280|0,L2(e,r),O2(t,o,e),r0(r,t,g),r0(G,T,m),r0(d,m,g),r0(C,t,T),e=o+1440|0,L2(e,r),O2(t,o,e),r0(r,t,g),r0(G,T,m),r0(d,m,g),r0(C,t,T),L2(o+1600|0,r),n[B+32>>2]=0,n[B+36>>2]=0,n[B+24>>2]=0,n[B+28>>2]=0,n[B+16>>2]=0,n[B+20>>2]=0,n[B+8>>2]=0,n[B+12>>2]=0,n[B>>2]=0,n[B+4>>2]=0,n[B+44>>2]=0,n[B+48>>2]=0,s0=B+40|0,n[s0>>2]=1,n[B+52>>2]=0,n[B+56>>2]=0,n[B+60>>2]=0,n[B+64>>2]=0,n[B+68>>2]=0,n[B+72>>2]=0,n[B+84>>2]=0,n[B+88>>2]=0,n[B+76>>2]=0,n[B+80>>2]=1,n[B+92>>2]=0,n[B+96>>2]=0,n[B+100>>2]=0,n[B+104>>2]=0,n[B+108>>2]=0,n[B+112>>2]=0,n[B+116>>2]=0,f0=B+80|0,i=255;;){A:{n:{e=o+2016|0;e:{if(s[e+i|0]||(r=o+1760|0,s[r+i|0]))break e;if(A=e,e=i-1|0,!(s[A+e|0]|s[e+r|0]))break n;i=e}if((i|0)<0)break A;for(;;){A=o+320|0,A1(A,B),e=i,t=h[e+(o+2016|0)|0];e:{if((t|0)>0){r=o+160|0,r0(r,A,g),r0(G,T,m),r0(d,m,g),r0(C,A,T),O2(A,r,(o+480|0)+E0((t&254)>>>1|0,160)|0);break e}if((t|0)>=0)break e;r=o+160|0,A=o+320|0,r0(r,A,g),r0(G,T,m),r0(d,m,g),r0(C,A,T),$6(A,r,(o+480|0)+E0((0-t&254)>>>1|0,160)|0)}t0=h[e+(o+1760|0)|0];e:{if((t0|0)>0){r=o+160|0,A=o+320|0,r0(r,A,g),r0(G,T,m),r0(d,m,g),r0(C,A,T),CA(A,r,E0((t0&254)>>>1|0,120)+1728|0);break e}if((t0|0)>=0)break e;_0=o+320|0,r0(o+160|0,_0,g),r0(G,T,m),r0(d,m,g),r0(C,_0,T),X=n[o+160>>2],K=n[o+200>>2],O=n[o+164>>2],U=n[o+204>>2],x=n[o+168>>2],z=n[o+208>>2],$=n[o+172>>2],J=n[o+212>>2],A0=n[o+176>>2],l=n[o+216>>2],f=n[o+180>>2],v=n[o+220>>2],M=n[o+184>>2],j=n[o+224>>2],u=n[o+188>>2],y=n[o+228>>2],i=n[o+192>>2],t=n[o+232>>2],A=n[o+236>>2],r=n[o+196>>2],n[o+396>>2]=A-r,n[o+392>>2]=t-i,n[o+388>>2]=y-u,n[o+384>>2]=j-M,n[o+380>>2]=v-f,n[o+376>>2]=l-A0,n[o+372>>2]=J-$,n[o+368>>2]=z-x,n[o+364>>2]=U-O,n[o+360>>2]=K-X,n[o+356>>2]=r+A,n[o+352>>2]=t+i,n[o+348>>2]=y+u,n[o+344>>2]=j+M,n[o+340>>2]=v+f,n[o+336>>2]=l+A0,n[o+332>>2]=$+J,n[o+328>>2]=x+z,n[o+324>>2]=O+U,n[o+320>>2]=X+K,r=E0((0-t0&254)>>>1|0,120)+1728|0,r0(m,_0,r+40|0),r0(T,T,r),r0(g,r+80|0,C),c0=n[o+276>>2],q0=n[o+272>>2],t0=n[o+268>>2],_0=n[o+264>>2],M=n[o+260>>2],j=n[o+256>>2],u=n[o+252>>2],y=n[o+248>>2],i=n[o+244>>2],t=n[o+240>>2],o0=n[o+360>>2],B0=n[o+400>>2],u0=n[o+364>>2],l0=n[o+404>>2],j0=n[o+368>>2],v0=n[o+408>>2],X=n[o+372>>2],K=n[o+412>>2],O=n[o+376>>2],U=n[o+416>>2],x=n[o+380>>2],z=n[o+420>>2],$=n[o+384>>2],J=n[o+424>>2],A0=n[o+388>>2],l=n[o+428>>2],f=n[o+392>>2],v=n[o+432>>2],A=n[o+396>>2],r=n[o+436>>2],n[o+396>>2]=A+r,n[o+392>>2]=v+f,n[o+388>>2]=l+A0,n[o+384>>2]=$+J,n[o+380>>2]=x+z,n[o+376>>2]=O+U,n[o+372>>2]=X+K,n[o+368>>2]=j0+v0,n[o+364>>2]=u0+l0,n[o+360>>2]=o0+B0,n[o+356>>2]=r-A,n[o+352>>2]=v-f,n[o+348>>2]=l-A0,n[o+344>>2]=J-$,n[o+340>>2]=z-x,n[o+336>>2]=U-O,n[o+332>>2]=K-X,n[o+328>>2]=v0-j0,n[o+324>>2]=l0-u0,n[o+320>>2]=B0-o0,X=t<<1,K=n[o+440>>2],n[o+400>>2]=X-K,O=i<<1,U=n[o+444>>2],n[o+404>>2]=O-U,x=y<<1,z=n[o+448>>2],n[o+408>>2]=x-z,$=u<<1,J=n[o+452>>2],n[o+412>>2]=$-J,A0=j<<1,l=n[o+456>>2],n[o+416>>2]=A0-l,f=M<<1,v=n[o+460>>2],n[o+420>>2]=f-v,M=_0<<1,j=n[o+464>>2],n[o+424>>2]=M-j,u=t0<<1,y=n[o+468>>2],n[o+428>>2]=u-y,i=q0<<1,t=n[o+472>>2],n[o+432>>2]=i-t,A=c0<<1,r=n[o+476>>2],n[o+436>>2]=A-r,n[o+440>>2]=X+K,n[o+444>>2]=O+U,n[o+448>>2]=x+z,n[o+452>>2]=$+J,n[o+456>>2]=l+A0,n[o+460>>2]=v+f,n[o+464>>2]=j+M,n[o+468>>2]=y+u,n[o+472>>2]=t+i,n[o+476>>2]=r+A}if(r0(B,o+320|0,g),r0(s0,T,m),r0(f0,m,g),i=e-1|0,!((e|0)>0))break}break A}if(i=i-2|0,e)continue}break}F=o+2272|0,e=n0+288|0,jr(e,B),B=(P0=-1,m0=Jr(e,_),C0=(_|0)==(e|0),(C0?P0:m0)|mr(_,e,32))}return F=n0+592|0,B}function zt(_,e){_=_|0,e=e|0;var r=0,A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0,x=0,z=0,$=0,J=0,A0=0,n0=0,t0=0,_0=0,s0=0,o0=0,B0=0,u0=0,l0=0,j0=0,v0=0,f0=0,c0=0,q0=0,P0=0,m0=0,C0=0,M0=0,I0=0,G0=0,d0=0,L0=0,F0=0,K0=0,N0=0,O0=0,V0=0,z0=0,$0=0,Z0=0,U0=0,x0=0,r2=0,A2=0,n2=0,t2=0,i2=0,s2=0,o2=0,h2=0,u2=0,k2=0,a2=0,g2=0,q2=0,P2=0,m2=0,I2=0,H2=0,N2=0,x2=0,V2=0,o1=0,y1=0;o=F-256|0,F=o,P2=-1;r:{if(l6(e)||(r=o+96|0,O4(r,e))||!mA(r))break r;P2=0,o0=n[o+172>>2],n[o+36>>2]=0-o0,C=n[o+168>>2],n[o+32>>2]=0-C,B0=n[o+164>>2],n[o+28>>2]=0-B0,G=n[o+160>>2],n[o+24>>2]=0-G,u0=n[o+156>>2],n[o+20>>2]=0-u0,d=n[o+152>>2],n[o+16>>2]=0-d,l0=n[o+148>>2],n[o+12>>2]=0-l0,X=n[o+144>>2],n[o+8>>2]=0-X,j0=n[o+140>>2],n[o+4>>2]=0-j0,t=n[o+136>>2],n[o>>2]=1-t,Tr(o,o),K=n[o+4>>2],t0=K>>31,O=u0<<1,F0=O>>31,e=q(K,t0,O,F0),r=p,m=n[o>>2],U=m>>31,x=G>>31,A=q(m,U,G,x),e=A+e|0,r=p+r|0,r=e>>>0<A>>>0?r+1|0:r,z=n[o+8>>2],v0=z>>31,$=d>>31,i=q(z,v0,d,$),A=i+e|0,e=p+r|0,e=A>>>0<i>>>0?e+1|0:e,r=A,_0=n[o+12>>2],q0=_0>>31,C0=l0<<1,K0=C0>>31,A=q(_0,q0,C0,K0),r=r+A|0,e=p+e|0,e=r>>>0<A>>>0?e+1|0:e,f0=n[o+16>>2],M0=f0>>31,J=X>>31,A=q(f0,M0,X,J),r=A+r|0,e=p+e|0,e=r>>>0<A>>>0?e+1|0:e,i=n[o+20>>2],h2=i,N0=i>>31,I0=j0<<1,O0=I0>>31,g=q(i,N0,I0,O0),r=g+r|0,A=p+e|0,A=r>>>0<g>>>0?A+1|0:A,j=n[o+24>>2],u2=j,i2=j>>31,g=t+1|0,A0=g>>31,t=q(j,i2,g,A0),e=t+r|0,r=p+A|0,r=e>>>0<t>>>0?r+1|0:r,V0=n[o+28>>2],M=E0(V0,19),P0=M>>31,G0=o0<<1,z0=G0>>31,t=q(M,P0,G0,z0),A=t+e|0,e=p+r|0,e=A>>>0<t>>>0?e+1|0:e,r=A,m2=n[o+32>>2],u=E0(m2,19),c0=u>>31,n0=C>>31,A=q(u,c0,C,n0),r=r+A|0,e=p+e|0,e=r>>>0<A>>>0?e+1|0:e,I2=n[o+36>>2],f=E0(I2,19),s0=f>>31,d0=B0<<1,$0=d0>>31,A=q(f,s0,d0,$0),r=A+r|0,e=p+e|0,B=r,t=r>>>0<A>>>0?e+1|0:e,e=q(d,$,K,t0),r=p,Z0=u0>>31,y=q(m,U,u0,Z0),e=y+e|0,A=p+r|0,A=e>>>0<y>>>0?A+1|0:A,U0=l0>>31,y=q(z,v0,l0,U0),e=y+e|0,r=p+A|0,r=e>>>0<y>>>0?r+1|0:r,y=q(X,J,_0,q0),A=y+e|0,e=p+r|0,e=A>>>0<y>>>0?e+1|0:e,r=A,x0=j0>>31,A=q(f0,M0,j0,x0),r=r+A|0,e=p+e|0,e=r>>>0<A>>>0?e+1|0:e,A=q(g,A0,i,N0),r=A+r|0,e=p+e|0,e=r>>>0<A>>>0?e+1|0:e,j=E0(j,19),L0=j>>31,r2=o0>>31,y=q(j,L0,o0,r2),r=y+r|0,A=p+e|0,A=r>>>0<y>>>0?A+1|0:A,y=q(C,n0,M,P0),e=y+r|0,r=p+A|0,r=e>>>0<y>>>0?r+1|0:r,A2=B0>>31,y=q(u,c0,B0,A2),A=y+e|0,e=p+r|0,e=A>>>0<y>>>0?e+1|0:e,r=A,A=q(f,s0,G,x),r=r+A|0,e=p+e|0,k2=r,m0=r>>>0<A>>>0?e+1|0:e,e=q(K,t0,C0,K0),A=p,y=q(m,U,d,$),r=y+e|0,e=p+A|0,e=r>>>0<y>>>0?e+1|0:e,y=q(X,J,z,v0),r=y+r|0,A=p+e|0,A=r>>>0<y>>>0?A+1|0:A,y=q(_0,q0,I0,O0),e=y+r|0,r=p+A|0,r=e>>>0<y>>>0?r+1|0:r,y=q(g,A0,f0,M0),A=y+e|0,e=p+r|0,e=A>>>0<y>>>0?e+1|0:e,r=A,y=E0(i,19),n2=y>>31,A=q(y,n2,G0,z0),r=r+A|0,e=p+e|0,e=r>>>0<A>>>0?e+1|0:e,A=q(C,n0,j,L0),r=A+r|0,e=p+e|0,e=r>>>0<A>>>0?e+1|0:e,i=q(M,P0,d0,$0),r=i+r|0,A=p+e|0,A=r>>>0<i>>>0?A+1|0:A,i=q(u,c0,G,x),e=i+r|0,r=p+A|0,r=e>>>0<i>>>0?r+1|0:r,i=q(f,s0,O,F0),A=i+e|0,e=p+r|0,H2=A,e=A>>>0<i>>>0?e+1|0:e,N2=e,A=A+33554432|0,e=A>>>0<33554432?e+1|0:e,x2=A,V2=e,A=(e&67108863)<<6|A>>>26,i=A+k2|0,e=(e>>26)+m0|0,k2=i,e=A>>>0>i>>>0?e+1|0:e,i=i+16777216|0,A=i>>>0<16777216?e+1|0:e,o1=i,r=A>>25,i=(A&33554431)<<7|i>>>25,A=i+B|0,e=r+t|0,e=A>>>0<i>>>0?e+1|0:e,r=A+33554432|0,e=r>>>0<33554432?e+1|0:e,T=r,i=e,n[o+72>>2]=A-(r&-67108864),e=q(K,t0,I0,O0),r=p,t=q(m,U,X,J),e=t+e|0,A=p+r|0,A=e>>>0<t>>>0?A+1|0:A,t=q(g,A0,z,v0),r=t+e|0,e=p+A|0,e=r>>>0<t>>>0?e+1|0:e,t=E0(_0,19),t2=t>>31,A=q(t,t2,G0,z0),r=A+r|0,e=p+e|0,e=r>>>0<A>>>0?e+1|0:e,m0=E0(f0,19),s2=m0>>31,B=q(m0,s2,C,n0),A=B+r|0,r=p+e|0,r=A>>>0<B>>>0?r+1|0:r,B=q(d0,$0,y,n2),A=B+A|0,e=p+r|0,e=A>>>0<B>>>0?e+1|0:e,B=q(G,x,j,L0),r=B+A|0,A=p+e|0,A=r>>>0<B>>>0?A+1|0:A,B=q(M,P0,O,F0),r=B+r|0,e=p+A|0,e=r>>>0<B>>>0?e+1|0:e,A=q(u,c0,d,$),r=A+r|0,e=p+e|0,e=r>>>0<A>>>0?e+1|0:e,B=q(f,s0,C0,K0),A=B+r|0,r=p+e|0,v=A,a2=A>>>0<B>>>0?r+1|0:r,e=q(g,A0,K,t0),r=p,B=q(m,U,j0,x0),A=B+e|0,e=p+r|0,e=A>>>0<B>>>0?e+1|0:e,r=E0(z,19),B=r,o2=r>>31,l=q(r,o2,o0,r2),r=l+A|0,A=p+e|0,A=r>>>0<l>>>0?A+1|0:A,l=q(C,n0,t,t2),r=l+r|0,e=p+A|0,e=r>>>0<l>>>0?e+1|0:e,A=q(m0,s2,B0,A2),r=A+r|0,e=p+e|0,e=r>>>0<A>>>0?e+1|0:e,l=q(G,x,y,n2),A=l+r|0,r=p+e|0,r=A>>>0<l>>>0?r+1|0:r,l=q(j,L0,u0,Z0),A=l+A|0,e=p+r|0,e=A>>>0<l>>>0?e+1|0:e,l=q(d,$,M,P0),r=l+A|0,A=p+e|0,A=r>>>0<l>>>0?A+1|0:A,l=q(u,c0,l0,U0),r=l+r|0,e=p+A|0,e=r>>>0<l>>>0?e+1|0:e,A=q(f,s0,X,J),r=A+r|0,e=p+e|0,g2=r,l=r>>>0<A>>>0?e+1|0:e,e=E0(K,19),e=q(e,e>>31,G0,z0),r=p,A=q(m,U,g,A0),e=A+e|0,r=p+r|0,r=e>>>0<A>>>0?r+1|0:r,B=q(C,n0,B,o2),A=B+e|0,e=p+r|0,t=q(t,t2,d0,$0),r=t+A|0,A=p+(A>>>0<B>>>0?e+1|0:e)|0,A=r>>>0<t>>>0?A+1|0:A,t=q(G,x,m0,s2),r=t+r|0,e=p+A|0,e=r>>>0<t>>>0?e+1|0:e,A=q(O,F0,y,n2),r=A+r|0,e=p+e|0,e=r>>>0<A>>>0?e+1|0:e,t=q(d,$,j,L0),A=t+r|0,r=p+e|0,r=A>>>0<t>>>0?r+1|0:r,t=q(M,P0,C0,K0),A=t+A|0,e=p+r|0,e=A>>>0<t>>>0?e+1|0:e,t=q(u,c0,X,J),r=t+A|0,A=p+e|0,A=r>>>0<t>>>0?A+1|0:A,t=q(f,s0,I0,O0),r=t+r|0,e=p+A|0,B=r,e=r>>>0<t>>>0?e+1|0:e,t2=e,r=r+33554432|0,e=r>>>0<33554432?e+1|0:e,o2=r,y1=e,A=e>>26,e=(e&67108863)<<6|r>>>26,t=e+g2|0,r=A+l|0,l=t,r=e>>>0>t>>>0?r+1|0:r,e=r,t=t+16777216|0,e=t>>>0<16777216?e+1|0:e,g2=t,t=(e&33554431)<<7|t>>>25,r=t+v|0,e=(e>>25)+a2|0,e=r>>>0<t>>>0?e+1|0:e,A=r,r=r+33554432|0,e=r>>>0<33554432?e+1|0:e,a2=r,t=e,n[o+56>>2]=A-(r&-67108864),e=q(G,x,K,t0),A=p,v=q(m,U,B0,A2),r=v+e|0,e=p+A|0,e=r>>>0<v>>>0?e+1|0:e,A=q(z,v0,u0,Z0),r=A+r|0,e=p+e|0,e=r>>>0<A>>>0?e+1|0:e,A=q(d,$,_0,q0),r=A+r|0,e=p+e|0,e=r>>>0<A>>>0?e+1|0:e,v=q(f0,M0,l0,U0),r=v+r|0,A=p+e|0,A=r>>>0<v>>>0?A+1|0:A,v=q(X,J,h2,N0),e=v+r|0,r=p+A|0,r=e>>>0<v>>>0?r+1|0:r,v=q(j0,x0,u2,i2),A=v+e|0,e=p+r|0,e=A>>>0<v>>>0?e+1|0:e,r=A,q2=V0>>31,A=q(V0,q2,g,A0),r=r+A|0,e=p+e|0,e=r>>>0<A>>>0?e+1|0:e,A=q(u,c0,o0,r2),r=A+r|0,e=p+e|0,e=r>>>0<A>>>0?e+1|0:e,A=r,r=q(f,s0,C,n0),v=A+r|0,A=p+e|0,r=r>>>0>v>>>0?A+1|0:A,e=i>>26,i=(i&67108863)<<6|T>>>26,A=i+v|0,r=e+r|0,T=A,r=A>>>0<i>>>0?r+1|0:r,e=r,A=A+16777216|0,e=A>>>0<16777216?e+1|0:e,v=A,i=e,n[o+76>>2]=T-(A&-33554432),e=q(X,J,K,t0),r=p,T=q(m,U,l0,U0),e=T+e|0,A=p+r|0,A=e>>>0<T>>>0?A+1|0:A,T=q(z,v0,j0,x0),e=T+e|0,r=p+A|0,r=e>>>0<T>>>0?r+1|0:r,T=q(g,A0,_0,q0),A=T+e|0,e=p+r|0,e=A>>>0<T>>>0?e+1|0:e,r=A,A=q(m0,s2,o0,r2),r=r+A|0,e=p+e|0,e=r>>>0<A>>>0?e+1|0:e,A=q(C,n0,y,n2),r=A+r|0,e=p+e|0,e=r>>>0<A>>>0?e+1|0:e,j=q(j,L0,B0,A2),r=j+r|0,A=p+e|0,M=q(G,x,M,P0),e=M+r|0,r=p+(r>>>0<j>>>0?A+1|0:A)|0,u=q(u,c0,u0,Z0),A=u+e|0,e=p+(e>>>0<M>>>0?r+1|0:r)|0,e=A>>>0<u>>>0?e+1|0:e,r=A,A=q(f,s0,d,$),r=r+A|0,e=p+e|0,e=r>>>0<A>>>0?e+1|0:e,T=r,r=t>>26,A=(t&67108863)<<6|a2>>>26,t=T+A|0,e=e+r|0,u=t,e=A>>>0>t>>>0?e+1|0:e,r=t+16777216|0,A=r>>>0<16777216?e+1|0:e,M=r,t=A,n[o+60>>2]=u-(r&-33554432),e=q(K,t0,d0,$0),A=p,u=q(m,U,C,n0),r=u+e|0,e=p+A|0,e=r>>>0<u>>>0?e+1|0:e,A=q(G,x,z,v0),r=A+r|0,e=p+e|0,e=r>>>0<A>>>0?e+1|0:e,u=q(_0,q0,O,F0),r=u+r|0,A=p+e|0,A=r>>>0<u>>>0?A+1|0:A,u=q(d,$,f0,M0),e=u+r|0,r=p+A|0,r=e>>>0<u>>>0?r+1|0:r,u=q(C0,K0,h2,N0),A=u+e|0,e=p+r|0,e=A>>>0<u>>>0?e+1|0:e,r=A,A=q(X,J,u2,i2),r=r+A|0,e=p+e|0,e=r>>>0<A>>>0?e+1|0:e,A=r,r=q(V0,q2,I0,O0),A=A+r|0,e=p+e|0,e=r>>>0>A>>>0?e+1|0:e,r=m2,u=r,j=r>>31,O=q(r,j,g,A0),r=O+A|0,A=p+e|0,f=q(f,s0,G0,z0),e=f+r|0,r=p+(r>>>0<O>>>0?A+1|0:A)|0,A=e>>>0<f>>>0?r+1|0:r,r=e,e=i>>25,i=(i&33554431)<<7|v>>>25,r=r+i|0,e=e+A|0,e=r>>>0<i>>>0?e+1|0:e,A=r,r=r+33554432|0,e=r>>>0<33554432?e+1|0:e,f=r,i=e,n[o+80>>2]=A-(r&-67108864),O=k2-(o1&-33554432)|0,r=t>>25,t=(t&33554431)<<7|M>>>25,e=x2&-67108864,A=t+(H2-e|0)|0,e=r+(N2-((e>>>0>H2>>>0)+V2|0)|0)|0,e=A>>>0<t>>>0?e+1|0:e,r=A+33554432|0,e=r>>>0<33554432?e+1|0:e,e=((e&67108863)<<6|r>>>26)+O|0,n[o+68>>2]=e,n[o+64>>2]=A-(r&-67108864),e=q(C,n0,K,t0),A=p,t=q(m,U,o0,r2),r=t+e|0,e=p+A|0,e=r>>>0<t>>>0?e+1|0:e,t=q(z,v0,B0,A2),A=t+r|0,r=p+e|0,r=A>>>0<t>>>0?r+1|0:r,t=q(G,x,_0,q0),e=t+A|0,A=p+r|0,A=e>>>0<t>>>0?A+1|0:A,t=q(f0,M0,u0,Z0),r=t+e|0,e=p+A|0,e=r>>>0<t>>>0?e+1|0:e,A=q(d,$,h2,N0),r=A+r|0,e=p+e|0,e=r>>>0<A>>>0?e+1|0:e,A=q(l0,U0,u2,i2),r=A+r|0,e=p+e|0,e=r>>>0<A>>>0?e+1|0:e,t=q(X,J,V0,q2),A=t+r|0,r=p+e|0,r=A>>>0<t>>>0?r+1|0:r,e=q(u,j,j0,x0),t=e+A|0,A=p+r|0,A=e>>>0>t>>>0?A+1|0:A,r=t,e=I2,t=q(e,e>>31,g,A0),r=r+t|0,e=p+A|0,e=r>>>0<t>>>0?e+1|0:e,A=r,r=i>>26,i=(i&67108863)<<6|f>>>26,A=A+i|0,e=e+r|0,e=A>>>0<i>>>0?e+1|0:e,r=A+16777216|0,e=r>>>0<16777216?e+1|0:e,n[o+84>>2]=A-(r&-33554432),i=l-(g2&-33554432)|0,A=o2&-67108864,t=B-A|0,m=t2-((A>>>0>B>>>0)+y1|0)|0,A=e,e=e>>25,e=q((A&33554431)<<7|r>>>25,e,19,0),A=e+t|0,r=p+m|0,e=e>>>0>A>>>0?r+1|0:r,r=A+33554432|0,e=r>>>0<33554432?e+1|0:e,e=((e&67108863)<<6|r>>>26)+i|0,n[o+52>>2]=e,n[o+48>>2]=A-(r&-67108864),G2(_,o+48|0)}return F=o+256|0,P2|0}function $t(_,e,r,A,t,i,o,y,u){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0,i=i|0,o=o|0,y=y|0,u=u|0;var B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0,x=0,z=0,$=0,J=0,A0=0,n0=0,t0=0,_0=0;if(B=F-544|0,F=B,j4(u,y,B+432|0),u=0,o>>>0>31)for(y=32;c4(i+u|0,B+432|0),u=y,y=y+32|0,y>>>0<=o>>>0;);if(y=u|16,y>>>0<=o>>>0)for(;u=i+u|0,j=s[u|0]|s[u+1|0]<<8|(s[u+2|0]<<16|s[u+3|0]<<24),v=s[u+4|0]|s[u+5|0]<<8|(s[u+6|0]<<16|s[u+7|0]<<24),g=s[u+8|0]|s[u+9|0]<<8|(s[u+10|0]<<16|s[u+11|0]<<24),f=s[u+12|0]|s[u+13|0]<<8|(s[u+14|0]<<16|s[u+15|0]<<24),u=n[B+524>>2],n[B+392>>2]=n[B+520>>2],n[B+396>>2]=u,u=n[B+516>>2],n[B+384>>2]=n[B+512>>2],n[B+388>>2]=u,u=n[B+500>>2],n[B+368>>2]=n[B+496>>2],n[B+372>>2]=u,u=n[B+508>>2],n[B+376>>2]=n[B+504>>2],n[B+380>>2]=u,u=n[B+516>>2],n[B+352>>2]=n[B+512>>2],n[B+356>>2]=u,u=n[B+524>>2],n[B+360>>2]=n[B+520>>2],n[B+364>>2]=u,u=B+528|0,S0(u,B+368|0,B+352|0),l=n[B+540>>2],n[B+520>>2]=n[B+536>>2],n[B+524>>2]=l,l=n[B+532>>2],n[B+512>>2]=n[B+528>>2],n[B+516>>2]=l,l=n[B+484>>2],n[B+336>>2]=n[B+480>>2],n[B+340>>2]=l,l=n[B+492>>2],n[B+344>>2]=n[B+488>>2],n[B+348>>2]=l,l=n[B+500>>2],n[B+320>>2]=n[B+496>>2],n[B+324>>2]=l,l=n[B+508>>2],n[B+328>>2]=n[B+504>>2],n[B+332>>2]=l,S0(u,B+336|0,B+320|0),l=n[B+540>>2],n[B+504>>2]=n[B+536>>2],n[B+508>>2]=l,l=n[B+532>>2],n[B+496>>2]=n[B+528>>2],n[B+500>>2]=l,l=n[B+468>>2],n[B+304>>2]=n[B+464>>2],n[B+308>>2]=l,l=n[B+476>>2],n[B+312>>2]=n[B+472>>2],n[B+316>>2]=l,l=n[B+484>>2],n[B+288>>2]=n[B+480>>2],n[B+292>>2]=l,l=n[B+492>>2],n[B+296>>2]=n[B+488>>2],n[B+300>>2]=l,S0(u,B+304|0,B+288|0),l=n[B+540>>2],n[B+488>>2]=n[B+536>>2],n[B+492>>2]=l,l=n[B+532>>2],n[B+480>>2]=n[B+528>>2],n[B+484>>2]=l,l=n[B+452>>2],n[B+272>>2]=n[B+448>>2],n[B+276>>2]=l,l=n[B+460>>2],n[B+280>>2]=n[B+456>>2],n[B+284>>2]=l,l=n[B+468>>2],n[B+256>>2]=n[B+464>>2],n[B+260>>2]=l,l=n[B+476>>2],n[B+264>>2]=n[B+472>>2],n[B+268>>2]=l,S0(u,B+272|0,B+256|0),l=n[B+540>>2],n[B+472>>2]=n[B+536>>2],n[B+476>>2]=l,l=n[B+532>>2],n[B+464>>2]=n[B+528>>2],n[B+468>>2]=l,l=n[B+436>>2],n[B+240>>2]=n[B+432>>2],n[B+244>>2]=l,l=n[B+444>>2],n[B+248>>2]=n[B+440>>2],n[B+252>>2]=l,l=n[B+452>>2],n[B+224>>2]=n[B+448>>2],n[B+228>>2]=l,l=n[B+460>>2],n[B+232>>2]=n[B+456>>2],n[B+236>>2]=l,S0(u,B+240|0,B+224|0),l=n[B+540>>2],n[B+456>>2]=n[B+536>>2],n[B+460>>2]=l,l=n[B+532>>2],n[B+448>>2]=n[B+528>>2],n[B+452>>2]=l,l=n[B+388>>2],n[B+208>>2]=n[B+384>>2],n[B+212>>2]=l,l=n[B+396>>2],n[B+216>>2]=n[B+392>>2],n[B+220>>2]=l,l=n[B+436>>2],n[B+192>>2]=n[B+432>>2],n[B+196>>2]=l,l=n[B+444>>2],n[B+200>>2]=n[B+440>>2],n[B+204>>2]=l,S0(u,B+208|0,B+192|0),n[B+444>>2]=f^n[B+540>>2],n[B+440>>2]=g^n[B+536>>2],n[B+436>>2]=v^n[B+532>>2],n[B+432>>2]=j^n[B+528>>2],u=y,y=y+16|0,y>>>0<=o>>>0;);y=o&15,y&&(j=16-y|0,j&&B2(y|B+416,0,j),y&&b0(B+416|0,i+u|0,y),v=n[B+416>>2],g=n[B+420>>2],f=n[B+424>>2],l=n[B+428>>2],y=n[B+524>>2],u=n[B+520>>2],n[B+392>>2]=u,n[B+396>>2]=y,j=n[B+516>>2],i=n[B+512>>2],n[B+384>>2]=i,n[B+388>>2]=j,T=n[B+500>>2],n[B+176>>2]=n[B+496>>2],n[B+180>>2]=T,T=n[B+508>>2],n[B+184>>2]=n[B+504>>2],n[B+188>>2]=T,n[B+160>>2]=i,n[B+164>>2]=j,n[B+168>>2]=u,n[B+172>>2]=y,i=B+528|0,S0(i,B+176|0,B+160|0),y=n[B+540>>2],n[B+520>>2]=n[B+536>>2],n[B+524>>2]=y,y=n[B+532>>2],n[B+512>>2]=n[B+528>>2],n[B+516>>2]=y,y=n[B+484>>2],n[B+144>>2]=n[B+480>>2],n[B+148>>2]=y,y=n[B+492>>2],n[B+152>>2]=n[B+488>>2],n[B+156>>2]=y,y=n[B+500>>2],n[B+128>>2]=n[B+496>>2],n[B+132>>2]=y,y=n[B+508>>2],n[B+136>>2]=n[B+504>>2],n[B+140>>2]=y,S0(i,B+144|0,B+128|0),y=n[B+540>>2],n[B+504>>2]=n[B+536>>2],n[B+508>>2]=y,y=n[B+532>>2],n[B+496>>2]=n[B+528>>2],n[B+500>>2]=y,y=n[B+468>>2],n[B+112>>2]=n[B+464>>2],n[B+116>>2]=y,y=n[B+476>>2],n[B+120>>2]=n[B+472>>2],n[B+124>>2]=y,y=n[B+484>>2],n[B+96>>2]=n[B+480>>2],n[B+100>>2]=y,y=n[B+492>>2],n[B+104>>2]=n[B+488>>2],n[B+108>>2]=y,S0(i,B+112|0,B+96|0),y=n[B+540>>2],n[B+488>>2]=n[B+536>>2],n[B+492>>2]=y,y=n[B+532>>2],n[B+480>>2]=n[B+528>>2],n[B+484>>2]=y,y=n[B+452>>2],n[B+80>>2]=n[B+448>>2],n[B+84>>2]=y,y=n[B+460>>2],n[B+88>>2]=n[B+456>>2],n[B+92>>2]=y,y=n[B+468>>2],n[B+64>>2]=n[B+464>>2],n[B+68>>2]=y,y=n[B+476>>2],n[B+72>>2]=n[B+472>>2],n[B+76>>2]=y,S0(i,B+80|0,B- -64|0),y=n[B+540>>2],n[B+472>>2]=n[B+536>>2],n[B+476>>2]=y,y=n[B+532>>2],n[B+464>>2]=n[B+528>>2],n[B+468>>2]=y,y=n[B+436>>2],n[B+48>>2]=n[B+432>>2],n[B+52>>2]=y,y=n[B+444>>2],n[B+56>>2]=n[B+440>>2],n[B+60>>2]=y,y=n[B+452>>2],n[B+32>>2]=n[B+448>>2],n[B+36>>2]=y,y=n[B+460>>2],n[B+40>>2]=n[B+456>>2],n[B+44>>2]=y,S0(i,B+48|0,B+32|0),y=n[B+540>>2],n[B+456>>2]=n[B+536>>2],n[B+460>>2]=y,y=n[B+532>>2],n[B+448>>2]=n[B+528>>2],n[B+452>>2]=y,y=n[B+388>>2],n[B+16>>2]=n[B+384>>2],n[B+20>>2]=y,y=n[B+396>>2],n[B+24>>2]=n[B+392>>2],n[B+28>>2]=y,y=n[B+436>>2],n[B>>2]=n[B+432>>2],n[B+4>>2]=y,y=n[B+444>>2],n[B+8>>2]=n[B+440>>2],n[B+12>>2]=y,S0(i,B+16|0,B),n[B+444>>2]=l^n[B+540>>2],n[B+440>>2]=f^n[B+536>>2],n[B+436>>2]=g^n[B+532>>2],n[B+432>>2]=v^n[B+528>>2]);r:{if(!_){if(u=16,y=0,r>>>0<16)break r;for(;I4(B+528|0,e+y|0,B+432|0),y=u,u=y+16|0,u>>>0<=r>>>0;);break r}if(u=16,y=0,r>>>0<16)break r;for(;I4(_+y|0,e+y|0,B+432|0),y=u,u=y+16|0,u>>>0<=r>>>0;);}u=r&15,u&&(g=_?_+y|0:B+528|0,y=e+y|0,i=B+432|0,e=F-240|0,F=e,j=u+(e+192|0)|0,v=16-u|0,f=!v,f||B2(j,0,v),l=!u,l||b0(e+192|0,y,u),T=n[i+16>>2],y=i- -64|0,m=n[y>>2],M=n[i+80>>2],C=n[i+32>>2],G=n[i+48>>2],d=n[i+20>>2],X=n[i+68>>2],K=n[i+84>>2],O=n[i+36>>2],U=n[i+52>>2],x=n[i+24>>2],z=n[i+72>>2],$=n[i+88>>2],J=n[i+40>>2],A0=n[i+56>>2],n0=n[e+192>>2],t0=n[e+196>>2],_0=n[e+200>>2],n[e+204>>2]=n[i+44>>2]&n[i+60>>2]^(n[i+28>>2]^(n[i+76>>2]^(n[i+92>>2]^n[e+204>>2]))),n[e+200>>2]=J&A0^(z^($^_0)^x),n[e+196>>2]=O&U^(K^t0^X^d),n[e+192>>2]=C&G^(M^n0^m^T),f||B2(j,0,v),l||b0(g,e+192|0,u),j=n[e+192>>2],v=n[e+196>>2],g=n[e+200>>2],f=n[e+204>>2],u=n[i+92>>2],n[e+232>>2]=n[i+88>>2],n[e+236>>2]=u,u=n[i+84>>2],n[e+224>>2]=n[i+80>>2],n[e+228>>2]=u,u=n[y+4>>2],n[e+176>>2]=n[y>>2],n[e+180>>2]=u,u=n[i+76>>2],n[e+184>>2]=n[i+72>>2],n[e+188>>2]=u,u=n[i+84>>2],n[e+160>>2]=n[i+80>>2],n[e+164>>2]=u,u=n[i+92>>2],n[e+168>>2]=n[i+88>>2],n[e+172>>2]=u,u=e+208|0,S0(u,e+176|0,e+160|0),l=n[e+220>>2],n[i+88>>2]=n[e+216>>2],n[i+92>>2]=l,l=n[e+212>>2],n[i+80>>2]=n[e+208>>2],n[i+84>>2]=l,l=n[i+52>>2],n[e+144>>2]=n[i+48>>2],n[e+148>>2]=l,l=n[i+60>>2],n[e+152>>2]=n[i+56>>2],n[e+156>>2]=l,l=n[y+4>>2],n[e+128>>2]=n[y>>2],n[e+132>>2]=l,l=n[i+76>>2],n[e+136>>2]=n[i+72>>2],n[e+140>>2]=l,S0(u,e+144|0,e+128|0),l=n[e+220>>2],n[i+72>>2]=n[e+216>>2],n[i+76>>2]=l,l=n[e+212>>2],n[y>>2]=n[e+208>>2],n[y+4>>2]=l,y=n[i+36>>2],n[e+112>>2]=n[i+32>>2],n[e+116>>2]=y,y=n[i+44>>2],n[e+120>>2]=n[i+40>>2],n[e+124>>2]=y,y=n[i+52>>2],n[e+96>>2]=n[i+48>>2],n[e+100>>2]=y,y=n[i+60>>2],n[e+104>>2]=n[i+56>>2],n[e+108>>2]=y,S0(u,e+112|0,e+96|0),y=n[e+220>>2],n[i+56>>2]=n[e+216>>2],n[i+60>>2]=y,y=n[e+212>>2],n[i+48>>2]=n[e+208>>2],n[i+52>>2]=y,y=n[i+20>>2],n[e+80>>2]=n[i+16>>2],n[e+84>>2]=y,y=n[i+28>>2],n[e+88>>2]=n[i+24>>2],n[e+92>>2]=y,y=n[i+36>>2],n[e+64>>2]=n[i+32>>2],n[e+68>>2]=y,y=n[i+44>>2],n[e+72>>2]=n[i+40>>2],n[e+76>>2]=y,S0(u,e+80|0,e- -64|0),y=n[e+220>>2],n[i+40>>2]=n[e+216>>2],n[i+44>>2]=y,y=n[e+212>>2],n[i+32>>2]=n[e+208>>2],n[i+36>>2]=y,y=n[i+4>>2],n[e+48>>2]=n[i>>2],n[e+52>>2]=y,y=n[i+12>>2],n[e+56>>2]=n[i+8>>2],n[e+60>>2]=y,y=n[i+20>>2],n[e+32>>2]=n[i+16>>2],n[e+36>>2]=y,y=n[i+28>>2],n[e+40>>2]=n[i+24>>2],n[e+44>>2]=y,S0(u,e+48|0,e+32|0),y=n[e+220>>2],n[i+24>>2]=n[e+216>>2],n[i+28>>2]=y,y=n[e+212>>2],n[i+16>>2]=n[e+208>>2],n[i+20>>2]=y,y=n[e+228>>2],n[e+16>>2]=n[e+224>>2],n[e+20>>2]=y,y=n[e+236>>2],n[e+24>>2]=n[e+232>>2],n[e+28>>2]=y,y=n[i+4>>2],n[e>>2]=n[i>>2],n[e+4>>2]=y,y=n[i+12>>2],n[e+8>>2]=n[i+8>>2],n[e+12>>2]=y,S0(u,e+16|0,e),y=n[e+208>>2],u=n[e+212>>2],l=n[e+216>>2],n[i+12>>2]=f^n[e+220>>2],n[i+8>>2]=l^g,n[i+4>>2]=u^v,n[i>>2]=y^j,F=e+240|0),w4(B+384|0,t,o,r,B+432|0),y=-1;r:{A:{if(e=t-16|0,e){if((e|0)==16)break A;break r}y=wr(B+384|0,A);break r}y=Jr(B+384|0,A)}return!r|(!_|!y)||B2(_,0,r),F=B+544|0,y|0}function r0(_,e,r){var A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0,x=0,z=0,$=0,J=0,A0=0,n0=0,t0=0,_0=0,s0=0,o0=0,B0=0,u0=0,l0=0,j0=0,v0=0,f0=0,c0=0,q0=0,P0=0,m0=0,C0=0,M0=0,I0=0,G0=0,d0=0,L0=0,F0=0,K0=0,N0=0,O0=0,V0=0,z0=0,$0=0,Z0=0,U0=0,x0=0,r2=0,A2=0,n2=0,t2=0,i2=0,s2=0,o2=0,h2=0,u2=0,k2=0,a2=0,g2=0,q2=0,P2=0,m2=0,I2=0,H2=0,N2=0,x2=0,V2=0;C=n[r+4>>2],J=C>>31,B0=n[e+20>>2],A0=B0<<1,K0=A0>>31,A=q(C,J,A0,K0),i=p,M=n[r>>2],X=M>>31,G=n[e+24>>2],K=G>>31,T=q(M,X,G,K),t=T+A|0,A=p+i|0,A=t>>>0<T>>>0?A+1|0:A,O=n[r+8>>2],_0=O>>31,T=n[e+16>>2],U=T>>31,j=q(O,_0,T,U),t=j+t|0,i=p+A|0,i=t>>>0<j>>>0?i+1|0:i,n0=n[r+12>>2],u0=n0>>31,l0=n[e+12>>2],m0=l0<<1,N0=m0>>31,j=q(n0,u0,m0,N0),A=j+t|0,t=p+i|0,t=A>>>0<j>>>0?t+1|0:t,s0=n[r+16>>2],C0=s0>>31,j=n[e+8>>2],x=j>>31,m=q(s0,C0,j,x),i=m+A|0,A=p+t|0,A=i>>>0<m>>>0?A+1|0:A,t=i,j0=n[r+20>>2],O0=j0>>31,v0=n[e+4>>2],M0=v0<<1,V0=M0>>31,i=q(j0,O0,M0,V0),t=t+i|0,A=p+A|0,A=t>>>0<i>>>0?A+1|0:A,B=n[r+24>>2],k2=B,s2=B>>31,m=n[e>>2],z=m>>31,v=q(B,s2,m,z),i=v+t|0,t=p+A|0,t=i>>>0<v>>>0?t+1|0:t,z0=n[r+28>>2],g=E0(z0,19),f0=g>>31,c0=n[e+36>>2],I0=c0<<1,$0=I0>>31,v=q(g,f0,I0,$0),A=v+i|0,i=p+t|0,i=A>>>0<v>>>0?i+1|0:i,o2=n[r+32>>2],o=E0(o2,19),o0=o>>31,v=n[e+32>>2],$=v>>31,l=q(o,o0,v,$),t=l+A|0,A=p+i|0,A=t>>>0<l>>>0?A+1|0:A,a2=n[r+36>>2],l=E0(a2,19),t0=l>>31,q0=n[e+28>>2],G0=q0<<1,Z0=G0>>31,r=q(l,t0,G0,Z0),e=r+t|0,A=p+A|0,y=e,r=e>>>0<r>>>0?A+1|0:A,e=q(T,U,C,J),A=p,U0=B0>>31,t=q(M,X,B0,U0),e=t+e|0,i=p+A|0,i=e>>>0<t>>>0?i+1|0:i,x0=l0>>31,A=q(O,_0,l0,x0),e=A+e|0,t=p+i|0,t=e>>>0<A>>>0?t+1|0:t,i=q(j,x,n0,u0),e=i+e|0,A=p+t|0,A=e>>>0<i>>>0?A+1|0:A,r2=v0>>31,t=q(s0,C0,v0,r2),e=t+e|0,A=p+A|0,A=e>>>0<t>>>0?A+1|0:A,t=q(m,z,j0,O0),e=t+e|0,A=p+A|0,A=e>>>0<t>>>0?A+1|0:A,B=E0(B,19),d0=B>>31,A2=c0>>31,t=q(B,d0,c0,A2),e=t+e|0,i=p+A|0,i=e>>>0<t>>>0?i+1|0:i,A=q(v,$,g,f0),e=A+e|0,t=p+i|0,t=e>>>0<A>>>0?t+1|0:t,n2=q0>>31,i=q(o,o0,q0,n2),e=i+e|0,A=p+t|0,A=e>>>0<i>>>0?A+1|0:A,t=q(l,t0,G,K),e=t+e|0,A=p+A|0,g2=e,P0=e>>>0<t>>>0?A+1|0:A,e=q(C,J,m0,N0),A=p,t=q(M,X,T,U),e=t+e|0,A=p+A|0,A=e>>>0<t>>>0?A+1|0:A,t=q(j,x,O,_0),e=t+e|0,i=p+A|0,i=e>>>0<t>>>0?i+1|0:i,A=q(n0,u0,M0,V0),e=A+e|0,t=p+i|0,t=e>>>0<A>>>0?t+1|0:t,i=q(m,z,s0,C0),e=i+e|0,A=p+t|0,A=e>>>0<i>>>0?A+1|0:A,L0=E0(j0,19),t2=L0>>31,t=q(L0,t2,I0,$0),e=t+e|0,A=p+A|0,A=e>>>0<t>>>0?A+1|0:A,t=q(v,$,B,d0),e=t+e|0,A=p+A|0,A=e>>>0<t>>>0?A+1|0:A,t=q(g,f0,G0,Z0),e=t+e|0,i=p+A|0,i=e>>>0<t>>>0?i+1|0:i,A=q(o,o0,G,K),e=A+e|0,t=p+i|0,t=e>>>0<A>>>0?t+1|0:t,i=q(l,t0,A0,K0),e=i+e|0,A=p+t|0,m2=e,A=e>>>0<i>>>0?A+1|0:A,I2=A,e=e+33554432|0,A=e>>>0<33554432?A+1|0:A,H2=e,N2=A,i=(A&67108863)<<6|e>>>26,e=i+g2|0,A=(A>>26)+P0|0,g2=e,A=e>>>0<i>>>0?A+1|0:A,e=e+16777216|0,i=e>>>0<16777216?A+1|0:A,x2=e,t=i>>25,i=(i&33554431)<<7|e>>>25,e=i+y|0,A=r+t|0,A=e>>>0<i>>>0?A+1|0:A,t=e,r=t+33554432|0,A=r>>>0<33554432?A+1|0:A,F0=r,e=A,n[_+24>>2]=t-(r&-67108864),r=q(C,J,M0,V0),A=p,t=q(M,X,j,x),r=t+r|0,i=p+A|0,i=r>>>0<t>>>0?i+1|0:i,A=r,r=q(m,z,O,_0),t=A+r|0,A=p+i|0,A=r>>>0>t>>>0?A+1|0:A,r=E0(n0,19),i2=r>>31,i=q(r,i2,I0,$0),t=i+t|0,A=p+A|0,A=t>>>0<i>>>0?A+1|0:A,P0=E0(s0,19),h2=P0>>31,y=q(v,$,P0,h2),i=y+t|0,t=p+A|0,t=i>>>0<y>>>0?t+1|0:t,y=q(G0,Z0,L0,t2),i=y+i|0,A=p+t|0,A=i>>>0<y>>>0?A+1|0:A,y=q(G,K,B,d0),t=y+i|0,i=p+A|0,i=t>>>0<y>>>0?i+1|0:i,y=q(g,f0,A0,K0),t=y+t|0,A=p+i|0,A=t>>>0<y>>>0?A+1|0:A,i=q(o,o0,T,U),t=i+t|0,A=p+A|0,A=t>>>0<i>>>0?A+1|0:A,y=q(l,t0,m0,N0),i=y+t|0,t=p+A|0,f=i,q2=i>>>0<y>>>0?t+1|0:t,A=q(m,z,C,J),t=p,y=q(M,X,v0,r2),i=y+A|0,A=p+t|0,A=i>>>0<y>>>0?A+1|0:A,t=E0(O,19),y=t,u2=t>>31,u=q(t,u2,c0,A2),t=u+i|0,i=p+A|0,i=t>>>0<u>>>0?i+1|0:i,u=q(v,$,r,i2),t=u+t|0,A=p+i|0,A=t>>>0<u>>>0?A+1|0:A,i=q(P0,h2,q0,n2),t=i+t|0,A=p+A|0,A=t>>>0<i>>>0?A+1|0:A,u=q(G,K,L0,t2),i=u+t|0,t=p+A|0,t=i>>>0<u>>>0?t+1|0:t,u=q(B,d0,B0,U0),i=u+i|0,A=p+t|0,A=i>>>0<u>>>0?A+1|0:A,u=q(T,U,g,f0),t=u+i|0,i=p+A|0,i=t>>>0<u>>>0?i+1|0:i,u=q(o,o0,l0,x0),t=u+t|0,A=p+i|0,A=t>>>0<u>>>0?A+1|0:A,i=q(l,t0,j,x),t=i+t|0,A=p+A|0,P2=t,u=t>>>0<i>>>0?A+1|0:A,A=E0(C,19),A=q(A,A>>31,I0,$0),t=p,i=q(M,X,m,z),A=i+A|0,t=p+t|0,t=A>>>0<i>>>0?t+1|0:t,y=q(v,$,y,u2),i=y+A|0,A=p+t|0,t=q(r,i2,G0,Z0),r=t+i|0,i=p+(i>>>0<y>>>0?A+1|0:A)|0,i=r>>>0<t>>>0?i+1|0:i,t=q(G,K,P0,h2),r=t+r|0,A=p+i|0,A=r>>>0<t>>>0?A+1|0:A,t=q(A0,K0,L0,t2),r=t+r|0,A=p+A|0,A=r>>>0<t>>>0?A+1|0:A,i=q(T,U,B,d0),r=i+r|0,t=p+A|0,t=r>>>0<i>>>0?t+1|0:t,i=q(g,f0,m0,N0),r=i+r|0,A=p+t|0,A=r>>>0<i>>>0?A+1|0:A,t=q(o,o0,j,x),r=t+r|0,i=p+A|0,i=r>>>0<t>>>0?i+1|0:i,t=q(l,t0,M0,V0),r=t+r|0,A=p+i|0,y=r,A=r>>>0<t>>>0?A+1|0:A,i2=A,r=r+33554432|0,A=r>>>0<33554432?A+1|0:A,u2=r,V2=A,i=A>>26,A=(A&67108863)<<6|r>>>26,r=A+P2|0,t=i+u|0,u=r,A=r>>>0<A>>>0?t+1|0:t,r=r+16777216|0,A=r>>>0<16777216?A+1|0:A,P2=r,t=(A&33554431)<<7|r>>>25,r=t+f|0,A=(A>>25)+q2|0,A=r>>>0<t>>>0?A+1|0:A,i=r,t=i+33554432|0,A=t>>>0<33554432?A+1|0:A,q2=t,r=A,n[_+8>>2]=i-(t&-67108864),A=q(G,K,C,J),i=p,f=q(M,X,q0,n2),t=f+A|0,A=p+i|0,A=t>>>0<f>>>0?A+1|0:A,i=q(O,_0,B0,U0),t=i+t|0,A=p+A|0,A=t>>>0<i>>>0?A+1|0:A,i=q(T,U,n0,u0),t=i+t|0,A=p+A|0,A=t>>>0<i>>>0?A+1|0:A,f=q(s0,C0,l0,x0),t=f+t|0,i=p+A|0,i=t>>>0<f>>>0?i+1|0:i,f=q(j,x,j0,O0),A=f+t|0,t=p+i|0,t=A>>>0<f>>>0?t+1|0:t,f=q(v0,r2,k2,s2),i=f+A|0,A=p+t|0,A=i>>>0<f>>>0?A+1|0:A,t=i,f=z0>>31,i=q(m,z,z0,f),t=t+i|0,A=p+A|0,A=t>>>0<i>>>0?A+1|0:A,i=q(o,o0,c0,A2),t=i+t|0,A=p+A|0,A=t>>>0<i>>>0?A+1|0:A,d=q(l,t0,v,$),t=d+t|0,i=p+A|0,A=e>>26,F0=(e&67108863)<<6|F0>>>26,e=F0+t|0,t=A+(t>>>0<d>>>0?i+1|0:i)|0,i=e,A=i>>>0<F0>>>0?t+1|0:t,t=i+16777216|0,A=t>>>0<16777216?A+1|0:A,F0=t,e=A,n[_+28>>2]=i-(t&-33554432),A=q(j,x,C,J),t=p,d=q(M,X,l0,x0),A=d+A|0,i=p+t|0,i=A>>>0<d>>>0?i+1|0:i,d=q(O,_0,v0,r2),A=d+A|0,t=p+i|0,t=A>>>0<d>>>0?t+1|0:t,d=q(m,z,n0,u0),i=d+A|0,A=p+t|0,A=i>>>0<d>>>0?A+1|0:A,t=i,i=q(P0,h2,c0,A2),t=t+i|0,A=p+A|0,A=t>>>0<i>>>0?A+1|0:A,i=q(v,$,L0,t2),t=i+t|0,A=p+A|0,A=t>>>0<i>>>0?A+1|0:A,B=q(B,d0,q0,n2),t=B+t|0,i=p+A|0,g=q(G,K,g,f0),A=g+t|0,t=p+(t>>>0<B>>>0?i+1|0:i)|0,o=q(o,o0,B0,U0),i=o+A|0,A=p+(A>>>0<g>>>0?t+1|0:t)|0,A=i>>>0<o>>>0?A+1|0:A,t=i,i=q(l,t0,T,U),t=t+i|0,A=p+A|0,A=t>>>0<i>>>0?A+1|0:A,o=t,t=r>>26,i=(r&67108863)<<6|q2>>>26,r=o+i|0,A=A+t|0,o=r,A=r>>>0<i>>>0?A+1|0:A,t=r+16777216|0,i=t>>>0<16777216?A+1|0:A,g=t,r=i,n[_+12>>2]=o-(t&-33554432),A=q(C,J,G0,Z0),i=p,o=q(M,X,v,$),t=o+A|0,A=p+i|0,A=t>>>0<o>>>0?A+1|0:A,i=q(G,K,O,_0),t=i+t|0,A=p+A|0,A=t>>>0<i>>>0?A+1|0:A,o=q(n0,u0,A0,K0),t=o+t|0,i=p+A|0,i=t>>>0<o>>>0?i+1|0:i,o=q(T,U,s0,C0),A=o+t|0,t=p+i|0,t=A>>>0<o>>>0?t+1|0:t,o=q(m0,N0,j0,O0),i=o+A|0,A=p+t|0,A=i>>>0<o>>>0?A+1|0:A,t=i,i=q(j,x,k2,s2),t=t+i|0,A=p+A|0,A=t>>>0<i>>>0?A+1|0:A,i=q(z0,f,M0,V0),t=i+t|0,A=p+A|0,A=t>>>0<i>>>0?A+1|0:A,o=o2,B=o>>31,A0=q(m,z,o,B),t=A0+t|0,i=p+A|0,l=q(l,t0,I0,$0),A=l+t|0,t=p+(t>>>0<A0>>>0?i+1|0:i)|0,t=A>>>0<l>>>0?t+1|0:t,o2=A,A=e>>25,i=(e&33554431)<<7|F0>>>25,e=o2+i|0,A=A+t|0,A=e>>>0<i>>>0?A+1|0:A,i=e,t=i+33554432|0,A=t>>>0<33554432?A+1|0:A,l=t,e=A,n[_+32>>2]=i-(t&-67108864),i=g2-(x2&-33554432)|0,t=r>>25,g=(r&33554431)<<7|g>>>25,A=H2&-67108864,r=g+(m2-A|0)|0,A=t+(I2-((A>>>0>m2>>>0)+N2|0)|0)|0,A=r>>>0<g>>>0?A+1|0:A,t=r,r=t+33554432|0,A=r>>>0<33554432?A+1|0:A,A=((A&67108863)<<6|r>>>26)+i|0,n[_+20>>2]=A,n[_+16>>2]=t-(r&-67108864),r=q(v,$,C,J),A=p,t=q(M,X,c0,A2),r=t+r|0,A=p+A|0,A=r>>>0<t>>>0?A+1|0:A,i=q(O,_0,q0,n2),r=i+r|0,t=p+A|0,t=r>>>0<i>>>0?t+1|0:t,A=q(G,K,n0,u0),r=A+r|0,i=p+t|0,i=r>>>0<A>>>0?i+1|0:i,t=q(s0,C0,B0,U0),r=t+r|0,A=p+i|0,A=r>>>0<t>>>0?A+1|0:A,t=q(T,U,j0,O0),r=t+r|0,A=p+A|0,A=r>>>0<t>>>0?A+1|0:A,t=q(l0,x0,k2,s2),r=t+r|0,A=p+A|0,A=r>>>0<t>>>0?A+1|0:A,i=q(j,x,z0,f),r=i+r|0,t=p+A|0,t=r>>>0<i>>>0?t+1|0:t,A=q(o,B,v0,r2),r=A+r|0,i=p+t|0,i=r>>>0<A>>>0?i+1|0:i,t=q(m,z,a2,a2>>31),r=t+r|0,A=p+i|0,A=r>>>0<t>>>0?A+1|0:A,t=e>>26,i=r,r=(e&67108863)<<6|l>>>26,e=i+r|0,A=A+t|0,A=e>>>0<r>>>0?A+1|0:A,r=e,e=r+16777216|0,A=e>>>0<16777216?A+1|0:A,n[_+36>>2]=r-(e&-33554432),i=u-(P2&-33554432)|0,r=u2&-67108864,t=y-r|0,M=i2-((r>>>0>y>>>0)+V2|0)|0,r=A,A=A>>25,r=q((r&33554431)<<7|e>>>25,A,19,0),e=r+t|0,t=p+M|0,A=e>>>0<r>>>0?t+1|0:t,r=e,e=r+33554432|0,A=e>>>0<33554432?A+1|0:A,A=((A&67108863)<<6|e>>>26)+i|0,n[_+4>>2]=A,n[_>>2]=r-(e&-67108864)}function Zt(_,e,r){_=_|0,e=e|0,r=r|0;var A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0,x=0,z=0,$=0,J=0,A0=0,n0=0,t0=0,_0=0,s0=0,o0=0,B0=0,u0=0,l0=0,j0=0,v0=0,f0=0,c0=0,q0=0,P0=0,m0=0,C0=0,M0=0,I0=0,G0=0,d0=0,L0=0,F0=0,K0=0,N0=0,O0=0,V0=0,z0=0,$0=0,Z0=0,U0=0,x0=0,r2=0,A2=0,n2=0,t2=0,i2=0,s2=0,o2=0;for(A=F-368|0,F=A;t=s[r+U|0],B=U+34112|0,T=t^s[B|0]|T,m=t^s[B+192|0]|m,g=t^s[B+160|0]|g,u=t^s[B+128|0]|u,y=t^s[B+96|0]|y,o=t^s[B- -64|0]|o,i=t^s[B+32|0]|i,U=U+1|0,(U|0)!=31;);if(t=-1,j=s[r+31|0]&127,B=j^127,!((((B|m)&255)-1|(((B|g)&255)-1|(((u|B)&255)-1|(((j^87|y)&255)-1|(((o|j)&255)-1|(((i|j)&255)-1|((j|T)&255)-1))))))&256)){for(t=s[e+4|0]|s[e+5|0]<<8|(s[e+6|0]<<16|s[e+7|0]<<24),i=s[e|0]|s[e+1|0]<<8|(s[e+2|0]<<16|s[e+3|0]<<24),n[A+336>>2]=i,n[A+340>>2]=t,t=s[e+28|0]|s[e+29|0]<<8|(s[e+30|0]<<16|s[e+31|0]<<24),n[A+360>>2]=s[e+24|0]|s[e+25|0]<<8|(s[e+26|0]<<16|s[e+27|0]<<24),n[A+364>>2]=t,t=s[e+20|0]|s[e+21|0]<<8|(s[e+22|0]<<16|s[e+23|0]<<24),n[A+352>>2]=s[e+16|0]|s[e+17|0]<<8|(s[e+18|0]<<16|s[e+19|0]<<24),n[A+356>>2]=t,t=s[e+12|0]|s[e+13|0]<<8|(s[e+14|0]<<16|s[e+15|0]<<24),n[A+344>>2]=s[e+8|0]|s[e+9|0]<<8|(s[e+10|0]<<16|s[e+11|0]<<24),n[A+348>>2]=t,h[A+336|0]=i&248,h[A+367|0]=s[A+367|0]&63|64,qr(A+288|0,r),n[A+244>>2]=0,n[A+248>>2]=0,n[A+240>>2]=1,n[A+252>>2]=0,n[A+256>>2]=0,n[A+260>>2]=0,n[A+264>>2]=0,n[A+268>>2]=0,n[A+272>>2]=0,n[A+276>>2]=0,n[A+192>>2]=0,n[A+196>>2]=0,n[A+200>>2]=0,n[A+204>>2]=0,n[A+208>>2]=0,n[A+212>>2]=0,n[A+216>>2]=0,n[A+220>>2]=0,n[A+224>>2]=0,n[A+228>>2]=0,e=n[A+292>>2],n[A+144>>2]=n[A+288>>2],n[A+148>>2]=e,e=n[A+300>>2],n[A+152>>2]=n[A+296>>2],n[A+156>>2]=e,e=n[A+308>>2],n[A+160>>2]=n[A+304>>2],n[A+164>>2]=e,e=n[A+316>>2],n[A+168>>2]=n[A+312>>2],n[A+172>>2]=e,e=n[A+324>>2],n[A+176>>2]=n[A+320>>2],n[A+180>>2]=e,n[A+100>>2]=0,n[A+104>>2]=0,n[A+96>>2]=1,n[A+108>>2]=0,n[A+112>>2]=0,n[A+116>>2]=0,n[A+120>>2]=0,n[A+124>>2]=0,n[A+128>>2]=0,n[A+132>>2]=0,r=254,U=0;j0=n[A+144>>2],v0=n[A+240>>2],f0=n[A+96>>2],c0=n[A+192>>2],q0=n[A+148>>2],P0=n[A+244>>2],m0=n[A+100>>2],C0=n[A+196>>2],M0=n[A+152>>2],I0=n[A+248>>2],G0=n[A+104>>2],d0=n[A+200>>2],L0=n[A+156>>2],F0=n[A+252>>2],K0=n[A+108>>2],N0=n[A+204>>2],O0=n[A+160>>2],J=n[A+256>>2],V0=n[A+112>>2],l=n[A+208>>2],z0=n[A+164>>2],M=n[A+260>>2],$0=n[A+116>>2],X=n[A+212>>2],Z0=n[A+168>>2],K=n[A+264>>2],n0=n[A+120>>2],f=n[A+216>>2],G=n[A+172>>2],C=n[A+268>>2],v=n[A+124>>2],j=n[A+220>>2],i=n[A+176>>2],B=n[A+272>>2],T=n[A+128>>2],m=n[A+224>>2],e=U,U0=r,x0=A+336|0,U=s[x0+(r>>>3|0)|0]>>>(r&7)&1,d=0-(e^U)|0,t=n[A+180>>2],y=n[A+276>>2],g=d&(t^y),e=n[A+132>>2],o=n[A+228>>2],u=d&(e^o),r2=t^g,A2=e^u,n[A+84>>2]=r2-A2,e=i,i=d&(i^B),n2=e^i,t=d&(T^m),t2=t^T,n[A+80>>2]=n2-t2,r=d&(C^G),i2=r^G,e=d&(j^v),O=e^v,n[A+76>>2]=i2-O,x=y^g,A0=o^u,n[A+36>>2]=x-A0,_0=i^B,s0=t^m,n[A+32>>2]=_0-s0,s2=r^C,o2=e^j,n[A+28>>2]=s2-o2,t0=d&(K^Z0),o0=t0^K,u=d&(f^n0),B0=u^f,n[A+24>>2]=o0-B0,z=d&(M^z0),u0=z^M,y=d&(X^$0),l0=y^X,n[A+20>>2]=u0-l0,$=d&(J^O0),J=$^J,o=d&(l^V0),l=o^l,n[A+16>>2]=J-l,M=d&(L0^F0),X=F0^M,i=d&(K0^N0),K=N0^i,n[A+12>>2]=X-K,f=d&(M0^I0),G=I0^f,t=d&(G0^d0),C=d0^t,n[A+8>>2]=G-C,v=d&(q0^P0),j=P0^v,r=d&(m0^C0),B=C0^r,n[A+4>>2]=j-B,T=d&(j0^v0),m=v0^T,e=d&(f0^c0),g=c0^e,n[A>>2]=m-g,n0=u^n0,n[A+120>>2]=n0,u=t0^Z0,n[A+72>>2]=u-n0,t0=y^$0,n[A+116>>2]=t0,y=z^z0,n[A+68>>2]=y-t0,z=o^V0,n[A+112>>2]=z,o=$^O0,n[A+64>>2]=o-z,$=i^K0,n[A+108>>2]=$,i=M^L0,n[A+60>>2]=i-$,M=t^G0,n[A+104>>2]=M,t=f^M0,n[A+56>>2]=t-M,f=r^m0,n[A+100>>2]=f,r=v^q0,n[A+52>>2]=r-f,v=e^f0,n[A+96>>2]=v,e=T^j0,n[A+48>>2]=e-v,n[A+276>>2]=x+A0,n[A+272>>2]=_0+s0,n[A+268>>2]=s2+o2,n[A+264>>2]=o0+B0,n[A+260>>2]=u0+l0,n[A+256>>2]=l+J,n[A+252>>2]=X+K,n[A+248>>2]=C+G,n[A+244>>2]=B+j,n[A+240>>2]=g+m,n[A+228>>2]=r2+A2,n[A+224>>2]=n2+t2,n[A+220>>2]=O+i2,n[A+216>>2]=u+n0,n[A+212>>2]=y+t0,n[A+208>>2]=o+z,n[A+200>>2]=t+M,n[A+196>>2]=r+f,n[A+192>>2]=e+v,n[A+204>>2]=i+$,s0=A+96|0,A0=A+48|0,x=A+240|0,r0(s0,A0,x),O=A+192|0,r0(O,O,A),N(A0,A),N(A,x),l=n[A+192>>2],M=n[A+96>>2],X=n[A+196>>2],K=n[A+100>>2],f=n[A+200>>2],G=n[A+104>>2],C=n[A+204>>2],v=n[A+108>>2],j=n[A+208>>2],B=n[A+112>>2],T=n[A+212>>2],m=n[A+116>>2],g=n[A+216>>2],u=n[A+120>>2],y=n[A+220>>2],o=n[A+124>>2],i=n[A+224>>2],t=n[A+128>>2],r=n[A+228>>2],e=n[A+132>>2],n[A+180>>2]=r+e,n[A+176>>2]=t+i,n[A+172>>2]=o+y,n[A+168>>2]=u+g,n[A+164>>2]=T+m,n[A+160>>2]=B+j,n[A+156>>2]=v+C,n[A+152>>2]=f+G,n[A+148>>2]=X+K,n[A+144>>2]=l+M,n[A+228>>2]=e-r,n[A+224>>2]=t-i,n[A+220>>2]=o-y,n[A+216>>2]=u-g,n[A+212>>2]=m-T,n[A+208>>2]=B-j,n[A+204>>2]=v-C,n[A+200>>2]=G-f,n[A+196>>2]=K-X,n[A+192>>2]=M-l,r0(x,A,A0),v=n[A+72>>2],f=n[A+24>>2],o0=n[A+68>>2],G=n[A+20>>2],j=n[A+64>>2],C=n[A+16>>2],B0=n[A+60>>2],g=n[A+12>>2],B=n[A+56>>2],u=n[A+8>>2],z=n[A+52>>2],y=n[A+4>>2],u0=n[A+84>>2],o=n[A+36>>2],_0=n[A+48>>2],t=n[A>>2],l0=n[A+76>>2],e=n[A+28>>2],i=n[A+80>>2],r=n[A+32>>2]-i|0,n[A+32>>2]=r,e=e-l0|0,n[A+28>>2]=e,M=t-_0|0,n[A>>2]=M,X=o-u0|0,n[A+36>>2]=X,T=y-z|0,n[A+4>>2]=T,m=u-B|0,n[A+8>>2]=m,g=g-B0|0,n[A+12>>2]=g,u=C-j|0,n[A+16>>2]=u,y=G-o0|0,n[A+20>>2]=y,o=f-v|0,n[A+24>>2]=o,N(O,O),t=A+144|0,N(t,t),t=q(r,r>>31,121666,0),C=p,r=q(e,e>>31,121666,0),e=p,$=r,K=r+16777216|0,e=K>>>0<16777216?e+1|0:e,r=(e&33554431)<<7|K>>>25,t=r+t|0,e=(e>>25)+C|0,e=r>>>0>t>>>0?e+1|0:e,f=t+33554432|0,r=f>>>0<33554432?e+1|0:e,n[A+80>>2]=(t-(f&-67108864)|0)+i,i=v,o=q(o,o>>31,121666,0),v=p,t=q(y,y>>31,121666,0),e=p,y=o,J=t,G=t+16777216|0,e=G>>>0<16777216?e+1|0:e,o=(e&33554431)<<7|G>>>25,t=y+o|0,e=(e>>25)+v|0,e=t>>>0<o>>>0?e+1|0:e,C=t+33554432|0,o=C>>>0<33554432?e+1|0:e,n[A+72>>2]=(t-(C&-67108864)|0)+i,y=j,i=q(u,u>>31,121666,0),u=p,t=q(g,g>>31,121666,0),e=p,j=i,l=t,v=t+16777216|0,e=v>>>0<16777216?e+1|0:e,i=(e&33554431)<<7|v>>>25,t=j+i|0,e=(e>>25)+u|0,e=t>>>0<i>>>0?e+1|0:e,j=t+33554432|0,i=j>>>0<33554432?e+1|0:e,n[A+64>>2]=(t-(j&-67108864)|0)+y,u=B,t=q(m,m>>31,121666,0),g=p,B=q(T,T>>31,121666,0),e=p,y=t,T=B+16777216|0,e=T>>>0<16777216?e+1|0:e,t=(e&33554431)<<7|T>>>25,y=y+t|0,e=(e>>25)+g|0,e=t>>>0>y>>>0?e+1|0:e,m=y+33554432|0,t=m>>>0<33554432?e+1|0:e,n[A+56>>2]=(y-(m&-67108864)|0)+u,g=u0,u=r,r=q(X,X>>31,121666,0),u=(u&67108863)<<6|f>>>26,f=r+u|0,y=p,e=y,u=r+16777216|0,r=u>>>0<16777216?e+1|0:e,n[A+84>>2]=(f-(u&-33554432)|0)+g,y=l0,o=$+((o&67108863)<<6|C>>>26)|0,n[A+76>>2]=(o-(K&-33554432)|0)+y,o=o0,i=J+((i&67108863)<<6|j>>>26)|0,n[A+68>>2]=(i-(G&-33554432)|0)+o,i=B0,t=l+((t&67108863)<<6|m>>>26)|0,n[A+60>>2]=(t-(v&-33554432)|0)+i,i=z,o=B-(T&-33554432)|0,r=q((r&33554431)<<7|u>>>25,r>>25,19,0),e=p,t=r,r=q(M,M>>31,121666,0),t=t+r|0,e=p+e|0,e=r>>>0>t>>>0?e+1|0:e,r=t+33554432|0,e=r>>>0<33554432?e+1|0:e,o=((e&67108863)<<6|r>>>26)+o|0,n[A+52>>2]=i+o,n[A+48>>2]=(t-(r&-67108864)|0)+_0,r=U0-1|0,r0(s0,A+288|0,O),r0(O,A,A0),!!U0;);T=n[A+144>>2],M=n[A+240>>2],m=n[A+148>>2],X=n[A+244>>2],g=n[A+152>>2],K=n[A+248>>2],u=n[A+156>>2],f=n[A+252>>2],y=n[A+160>>2],G=n[A+256>>2],o=n[A+164>>2],C=n[A+260>>2],i=n[A+168>>2],v=n[A+264>>2],t=n[A+172>>2],j=n[A+268>>2],r=n[A+176>>2],B=n[A+272>>2],l=0-U|0,e=n[A+276>>2],n[A+276>>2]=l&(e^n[A+180>>2])^e,n[A+272>>2]=B^l&(r^B),n[A+268>>2]=j^l&(t^j),n[A+264>>2]=v^l&(i^v),n[A+260>>2]=C^l&(o^C),n[A+256>>2]=G^l&(y^G),n[A+252>>2]=f^l&(u^f),n[A+248>>2]=K^l&(g^K),n[A+244>>2]=X^l&(m^X),n[A+240>>2]=M^l&(T^M),M=n[A+192>>2],T=n[A+96>>2],X=n[A+196>>2],m=n[A+100>>2],K=n[A+200>>2],g=n[A+104>>2],f=n[A+204>>2],u=n[A+108>>2],G=n[A+208>>2],y=n[A+112>>2],C=n[A+212>>2],o=n[A+116>>2],v=n[A+216>>2],i=n[A+120>>2],j=n[A+220>>2],t=n[A+124>>2],B=n[A+224>>2],r=n[A+128>>2],e=n[A+228>>2],n[A+228>>2]=l&(e^n[A+132>>2])^e,n[A+224>>2]=B^l&(r^B),n[A+220>>2]=j^l&(t^j),n[A+216>>2]=v^l&(i^v),n[A+212>>2]=C^l&(o^C),n[A+208>>2]=G^l&(y^G),n[A+204>>2]=f^l&(u^f),n[A+200>>2]=K^l&(g^K),n[A+196>>2]=X^l&(m^X),n[A+192>>2]=M^l&(T^M),Tr(O,O),r0(x,x,O),G2(_,x),Y0(x0,32),t=0}return F=A+368|0,t|0}function v4(_,e,r){var A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0;for(A=F-4032|0,F=A,L2(A+160|0,r),i=n[r+36>>2],n[A+3840>>2]=n[r+32>>2],n[A+3844>>2]=i,i=n[r+28>>2],n[A+3832>>2]=n[r+24>>2],n[A+3836>>2]=i,i=n[r+20>>2],n[A+3824>>2]=n[r+16>>2],n[A+3828>>2]=i,i=n[r+12>>2],n[A+3816>>2]=n[r+8>>2],n[A+3820>>2]=i,i=n[r+4>>2],n[A+3808>>2]=n[r>>2],n[A+3812>>2]=i,i=n[r+44>>2],n[A+3848>>2]=n[r+40>>2],n[A+3852>>2]=i,i=n[r+52>>2],n[A+3856>>2]=n[r+48>>2],n[A+3860>>2]=i,i=n[r+60>>2],n[A+3864>>2]=n[r+56>>2],n[A+3868>>2]=i,i=r- -64|0,t=n[i+4>>2],n[A+3872>>2]=n[i>>2],n[A+3876>>2]=t,i=n[r+76>>2],n[A+3880>>2]=n[r+72>>2],n[A+3884>>2]=i,i=n[r+84>>2],n[A+3888>>2]=n[r+80>>2],n[A+3892>>2]=i,i=n[r+92>>2],n[A+3896>>2]=n[r+88>>2],n[A+3900>>2]=i,i=n[r+100>>2],n[A+3904>>2]=n[r+96>>2],n[A+3908>>2]=i,i=n[r+108>>2],n[A+3912>>2]=n[r+104>>2],n[A+3916>>2]=i,i=n[r+116>>2],n[A+3920>>2]=n[r+112>>2],n[A+3924>>2]=i,t=A+3528|0,i=A+3808|0,A1(t,i),y=A+2408|0,o=A+3648|0,r0(y,t,o),u=A+3568|0,B=A+3608|0,r0(A+2448|0,u,B),r0(A+2488|0,B,o),r0(A+2528|0,t,u),o=A+320|0,L2(o,y),t=A+3368|0,O2(t,r,o),y=A+2248|0,o=A+3488|0,r0(y,t,o),u=A+3408|0,B=A+3448|0,r0(A+2288|0,u,B),r0(A+2328|0,B,o),r0(A+2368|0,t,u),L2(A+480|0,y),t=n[A+2444>>2],n[A+3840>>2]=n[A+2440>>2],n[A+3844>>2]=t,t=n[A+2436>>2],n[A+3832>>2]=n[A+2432>>2],n[A+3836>>2]=t,t=n[A+2428>>2],n[A+3824>>2]=n[A+2424>>2],n[A+3828>>2]=t,t=n[A+2420>>2],n[A+3816>>2]=n[A+2416>>2],n[A+3820>>2]=t,t=n[A+2412>>2],n[A+3808>>2]=n[A+2408>>2],n[A+3812>>2]=t,t=n[A+2452>>2],n[A+3848>>2]=n[A+2448>>2],n[A+3852>>2]=t,t=n[A+2460>>2],n[A+3856>>2]=n[A+2456>>2],n[A+3860>>2]=t,t=n[A+2468>>2],n[A+3864>>2]=n[A+2464>>2],n[A+3868>>2]=t,t=n[A+2476>>2],n[A+3872>>2]=n[A+2472>>2],n[A+3876>>2]=t,t=n[A+2484>>2],n[A+3880>>2]=n[A+2480>>2],n[A+3884>>2]=t,t=n[A+2524>>2],n[A+3920>>2]=n[A+2520>>2],n[A+3924>>2]=t,t=n[A+2516>>2],n[A+3912>>2]=n[A+2512>>2],n[A+3916>>2]=t,t=n[A+2508>>2],n[A+3904>>2]=n[A+2504>>2],n[A+3908>>2]=t,t=n[A+2500>>2],n[A+3896>>2]=n[A+2496>>2],n[A+3900>>2]=t,t=n[A+2492>>2],n[A+3888>>2]=n[A+2488>>2],n[A+3892>>2]=t,t=A+3208|0,A1(t,i),y=A+2088|0,o=A+3328|0,r0(y,t,o),u=A+3248|0,B=A+3288|0,r0(A+2128|0,u,B),r0(A+2168|0,B,o),r0(A+2208|0,t,u),o=A+640|0,L2(o,y),t=A+3048|0,O2(t,r,o),y=A+1928|0,o=A+3168|0,r0(y,t,o),u=A+3088|0,B=A+3128|0,r0(A+1968|0,u,B),r0(A+2008|0,B,o),r0(A+2048|0,t,u),L2(A+800|0,y),t=n[A+2284>>2],n[A+3840>>2]=n[A+2280>>2],n[A+3844>>2]=t,t=n[A+2276>>2],n[A+3832>>2]=n[A+2272>>2],n[A+3836>>2]=t,t=n[A+2268>>2],n[A+3824>>2]=n[A+2264>>2],n[A+3828>>2]=t,t=n[A+2260>>2],n[A+3816>>2]=n[A+2256>>2],n[A+3820>>2]=t,t=n[A+2252>>2],n[A+3808>>2]=n[A+2248>>2],n[A+3812>>2]=t,t=n[A+2292>>2],n[A+3848>>2]=n[A+2288>>2],n[A+3852>>2]=t,t=n[A+2300>>2],n[A+3856>>2]=n[A+2296>>2],n[A+3860>>2]=t,t=n[A+2308>>2],n[A+3864>>2]=n[A+2304>>2],n[A+3868>>2]=t,t=n[A+2316>>2],n[A+3872>>2]=n[A+2312>>2],n[A+3876>>2]=t,t=n[A+2324>>2],n[A+3880>>2]=n[A+2320>>2],n[A+3884>>2]=t,t=n[A+2364>>2],n[A+3920>>2]=n[A+2360>>2],n[A+3924>>2]=t,t=n[A+2356>>2],n[A+3912>>2]=n[A+2352>>2],n[A+3916>>2]=t,t=n[A+2348>>2],n[A+3904>>2]=n[A+2344>>2],n[A+3908>>2]=t,t=n[A+2340>>2],n[A+3896>>2]=n[A+2336>>2],n[A+3900>>2]=t,t=n[A+2332>>2],n[A+3888>>2]=n[A+2328>>2],n[A+3892>>2]=t,t=A+2888|0,A1(t,i),y=A+1768|0,o=A+3008|0,r0(y,t,o),u=A+2928|0,B=A+2968|0,r0(A+1808|0,u,B),r0(A+1848|0,B,o),r0(A+1888|0,t,u),o=A+960|0,L2(o,y),t=A+2728|0,O2(t,r,o),r=A+1608|0,y=A+2848|0,r0(r,t,y),o=A+2768|0,u=A+2808|0,r0(A+1648|0,o,u),r0(A+1688|0,u,y),r0(A+1728|0,t,o),L2(A+1120|0,r),r=n[A+2124>>2],n[A+3840>>2]=n[A+2120>>2],n[A+3844>>2]=r,r=n[A+2116>>2],n[A+3832>>2]=n[A+2112>>2],n[A+3836>>2]=r,r=n[A+2108>>2],n[A+3824>>2]=n[A+2104>>2],n[A+3828>>2]=r,r=n[A+2100>>2],n[A+3816>>2]=n[A+2096>>2],n[A+3820>>2]=r,r=n[A+2092>>2],n[A+3808>>2]=n[A+2088>>2],n[A+3812>>2]=r,r=n[A+2132>>2],n[A+3848>>2]=n[A+2128>>2],n[A+3852>>2]=r,r=n[A+2140>>2],n[A+3856>>2]=n[A+2136>>2],n[A+3860>>2]=r,r=n[A+2148>>2],n[A+3864>>2]=n[A+2144>>2],n[A+3868>>2]=r,r=n[A+2156>>2],n[A+3872>>2]=n[A+2152>>2],n[A+3876>>2]=r,r=n[A+2164>>2],n[A+3880>>2]=n[A+2160>>2],n[A+3884>>2]=r,r=n[A+2204>>2],n[A+3920>>2]=n[A+2200>>2],n[A+3924>>2]=r,r=n[A+2196>>2],n[A+3912>>2]=n[A+2192>>2],n[A+3916>>2]=r,r=n[A+2188>>2],n[A+3904>>2]=n[A+2184>>2],n[A+3908>>2]=r,r=n[A+2180>>2],n[A+3896>>2]=n[A+2176>>2],n[A+3900>>2]=r,r=n[A+2172>>2],n[A+3888>>2]=n[A+2168>>2],n[A+3892>>2]=r,r=A+2568|0,A1(r,i),i=A+1448|0,t=A+2688|0,r0(i,r,t),y=A+2608|0,o=A+2648|0,r0(A+1488|0,y,o),r0(A+1528|0,o,t),r0(A+1568|0,r,y),L2(A+1280|0,i),r=s[e|0],h[A+3969|0]=r>>>4,h[A+3968|0]=r&15,r=s[e+1|0],h[A+3971|0]=r>>>4,h[A+3970|0]=r&15,r=s[e+2|0],h[A+3973|0]=r>>>4,h[A+3972|0]=r&15,r=s[e+3|0],h[A+3975|0]=r>>>4,h[A+3974|0]=r&15,r=s[e+4|0],h[A+3977|0]=r>>>4,h[A+3976|0]=r&15,r=s[e+5|0],h[A+3979|0]=r>>>4,h[A+3978|0]=r&15,r=s[e+6|0],h[A+3981|0]=r>>>4,h[A+3980|0]=r&15,r=s[e+7|0],h[A+3983|0]=r>>>4,h[A+3982|0]=r&15,r=s[e+8|0],h[A+3985|0]=r>>>4,h[A+3984|0]=r&15,r=s[e+9|0],h[A+3987|0]=r>>>4,h[A+3986|0]=r&15,r=s[e+10|0],h[A+3989|0]=r>>>4,h[A+3988|0]=r&15,r=s[e+11|0],h[A+3991|0]=r>>>4,h[A+3990|0]=r&15,r=s[e+12|0],h[A+3993|0]=r>>>4,h[A+3992|0]=r&15,r=s[e+13|0],h[A+3995|0]=r>>>4,h[A+3994|0]=r&15,r=s[e+14|0],h[A+3997|0]=r>>>4,h[A+3996|0]=r&15,r=s[e+15|0],h[A+3999|0]=r>>>4,h[A+3998|0]=r&15,r=s[e+16|0],h[A+4001|0]=r>>>4,h[A+4e3|0]=r&15,r=s[e+17|0],h[A+4003|0]=r>>>4,h[A+4002|0]=r&15,r=s[e+18|0],h[A+4005|0]=r>>>4,h[A+4004|0]=r&15,r=s[e+19|0],h[A+4007|0]=r>>>4,h[A+4006|0]=r&15,r=s[e+20|0],h[A+4009|0]=r>>>4,h[A+4008|0]=r&15,r=s[e+21|0],h[A+4011|0]=r>>>4,h[A+4010|0]=r&15,r=s[e+22|0],h[A+4013|0]=r>>>4,h[A+4012|0]=r&15,r=s[e+23|0],h[A+4015|0]=r>>>4,h[A+4014|0]=r&15,r=s[e+24|0],h[A+4017|0]=r>>>4,h[A+4016|0]=r&15,r=s[e+25|0],h[A+4019|0]=r>>>4,h[A+4018|0]=r&15,r=s[e+26|0],h[A+4021|0]=r>>>4,h[A+4020|0]=r&15,r=s[e+27|0],h[A+4023|0]=r>>>4,h[A+4022|0]=r&15,r=s[e+28|0],h[A+4025|0]=r>>>4,h[A+4024|0]=r&15,r=s[e+29|0],h[A+4027|0]=r>>>4,h[A+4026|0]=r&15,r=s[e+30|0],h[A+4029|0]=r>>>4,h[A+4028|0]=r&15,e=s[e+31|0],h[A+4031|0]=e>>>4,h[A+4030|0]=e&15,e=0,r=0;t=e,e=(A+3968|0)+r|0,t=t+s[e|0]|0,i=t+8|0,h[e|0]=t-(i&240),t=s[e+1|0]+(i<<24>>24>>4)|0,i=t+8|0,h[e+1|0]=t-(i&240),t=s[e+2|0]+(i<<24>>24>>4)|0,i=t+8|0,h[e+2|0]=t-(i&240),e=i<<24>>24>>4,r=r+3|0,(r|0)!=63;);for(h[A+4031|0]=s[A+4031|0]+e,n[_+32>>2]=0,n[_+36>>2]=0,n[_+24>>2]=0,n[_+28>>2]=0,n[_+16>>2]=0,n[_+20>>2]=0,n[_+8>>2]=0,n[_+12>>2]=0,n[_>>2]=0,n[_+4>>2]=0,n[_+44>>2]=0,n[_+48>>2]=0,l=_+40|0,n[l>>2]=1,n[_+52>>2]=0,n[_+56>>2]=0,n[_+60>>2]=0,n[_+64>>2]=0,n[_+68>>2]=0,n[_+72>>2]=0,n[_+76>>2]=0,n[_+80>>2]=1,B2(_+84|0,0,76),j=_+120|0,v=_+80|0,o=A+3768|0,r=A+3888|0,t=A+3848|0,u=A+3728|0,i=A+3928|0,B=63;f=A+160|0,X4(A,f,h[(A+3968|0)+B|0]),e=A+3808|0,O2(e,_,A),y=A+3688|0,r0(y,e,i),r0(u,t,r),r0(o,r,i),A1(e,y),r0(y,e,i),r0(u,t,r),r0(o,r,i),A1(e,y),r0(y,e,i),r0(u,t,r),r0(o,r,i),A1(e,y),r0(y,e,i),r0(u,t,r),r0(o,r,i),A1(e,y),r0(_,e,i),r0(l,t,r),r0(v,r,i),r0(j,e,t),B=B-1|0,!!B;);X4(A,f,h[A+3968|0]),O2(e,_,A),r0(_,e,i),r0(l,t,r),r0(v,r,i),r0(j,e,t),F=A+4032|0}function O6(_,e,r,A){var t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0,x=0,z=0,$=0,J=0;for(t=s[e|0]|s[e+1|0]<<8|(s[e+2|0]<<16|s[e+3|0]<<24),$=r,J=p2(t&16711935,8)|p2(t,24)&16711935,n[$>>2]=J,t=s[e+4|0]|s[e+5|0]<<8|(s[e+6|0]<<16|s[e+7|0]<<24),$=r,J=p2(t&16711935,8)|p2(t,24)&16711935,n[$+4>>2]=J,t=s[e+8|0]|s[e+9|0]<<8|(s[e+10|0]<<16|s[e+11|0]<<24),$=r,J=p2(t&16711935,8)|p2(t,24)&16711935,n[$+8>>2]=J,t=s[e+12|0]|s[e+13|0]<<8|(s[e+14|0]<<16|s[e+15|0]<<24),$=r,J=p2(t&16711935,8)|p2(t,24)&16711935,n[$+12>>2]=J,t=s[e+16|0]|s[e+17|0]<<8|(s[e+18|0]<<16|s[e+19|0]<<24),$=r,J=p2(t&16711935,8)|p2(t,24)&16711935,n[$+16>>2]=J,t=s[e+20|0]|s[e+21|0]<<8|(s[e+22|0]<<16|s[e+23|0]<<24),$=r,J=p2(t&16711935,8)|p2(t,24)&16711935,n[$+20>>2]=J,t=s[e+24|0]|s[e+25|0]<<8|(s[e+26|0]<<16|s[e+27|0]<<24),$=r,J=p2(t&16711935,8)|p2(t,24)&16711935,n[$+24>>2]=J,t=s[e+28|0]|s[e+29|0]<<8|(s[e+30|0]<<16|s[e+31|0]<<24),$=r,J=p2(t&16711935,8)|p2(t,24)&16711935,n[$+28>>2]=J,t=s[e+32|0]|s[e+33|0]<<8|(s[e+34|0]<<16|s[e+35|0]<<24),$=r,J=p2(t&16711935,8)|p2(t,24)&16711935,n[$+32>>2]=J,t=s[e+36|0]|s[e+37|0]<<8|(s[e+38|0]<<16|s[e+39|0]<<24),$=r,J=p2(t&16711935,8)|p2(t,24)&16711935,n[$+36>>2]=J,t=s[e+40|0]|s[e+41|0]<<8|(s[e+42|0]<<16|s[e+43|0]<<24),$=r,J=p2(t&16711935,8)|p2(t,24)&16711935,n[$+40>>2]=J,t=s[e+44|0]|s[e+45|0]<<8|(s[e+46|0]<<16|s[e+47|0]<<24),$=r,J=p2(t&16711935,8)|p2(t,24)&16711935,n[$+44>>2]=J,t=s[e+48|0]|s[e+49|0]<<8|(s[e+50|0]<<16|s[e+51|0]<<24),$=r,J=p2(t&16711935,8)|p2(t,24)&16711935,n[$+48>>2]=J,t=s[e+52|0]|s[e+53|0]<<8|(s[e+54|0]<<16|s[e+55|0]<<24),$=r,J=p2(t&16711935,8)|p2(t,24)&16711935,n[$+52>>2]=J,t=s[e+56|0]|s[e+57|0]<<8|(s[e+58|0]<<16|s[e+59|0]<<24),$=r,J=p2(t&16711935,8)|p2(t,24)&16711935,n[$+56>>2]=J,e=s[e+60|0]|s[e+61|0]<<8|(s[e+62|0]<<16|s[e+63|0]<<24),$=r,J=p2(e&16711935,8)|p2(e,24)&16711935,n[$+60>>2]=J,e=n[_+28>>2],n[A+24>>2]=n[_+24>>2],n[A+28>>2]=e,e=n[_+20>>2],n[A+16>>2]=n[_+16>>2],n[A+20>>2]=e,e=n[_+12>>2],n[A+8>>2]=n[_+8>>2],n[A+12>>2]=e,e=n[_+4>>2],n[A>>2]=n[_>>2],n[A+4>>2]=e;;){if(y=n[A+28>>2],t=C<<2,e=t+r|0,u=n[A+16>>2],o=n[e>>2]+(b(u,26)^b(u,21)^b(u,7))|0,i=n[t+39360>>2]+o|0,o=n[A+24>>2],f=n[A+20>>2],y=(i+(u&(o^f)^o)|0)+y|0,l=y+n[A+12>>2]|0,n[A+12>>2]=l,i=n[A>>2],j=y+(b(i,30)^b(i,19)^b(i,10))|0,v=n[A+8>>2],B=n[A+4>>2],y=j+(i&(v|B)|B&v)|0,n[A+28>>2]=y,j=v,v=t|4,m=v+r|0,o=(n[m>>2]+((o+(f^l&(u^f))|0)+(b(l,26)^b(l,21)^b(l,7))|0)|0)+n[v+39360>>2]|0,v=j+o|0,n[A+8>>2]=v,o=(o+(y&(i|B)|i&B)|0)+(b(y,30)^b(y,19)^b(y,10))|0,n[A+24>>2]=o,j=B,B=t|8,B=(((f+n[B+r>>2]|0)+n[B+39360>>2]|0)+(u^v&(u^l))|0)+(b(v,26)^b(v,21)^b(v,7))|0,f=j+B|0,n[A+4>>2]=f,B=B+((o&(i|y)|i&y)+(b(o,30)^b(o,19)^b(o,10))|0)|0,n[A+20>>2]=B,j=i,i=t|12,i=(((u+n[i+r>>2]|0)+n[i+39360>>2]|0)+(l^f&(v^l))|0)+(b(f,26)^b(f,21)^b(f,7))|0,u=j+i|0,n[A>>2]=u,i=i+((B&(o|y)|o&y)+(b(B,30)^b(B,19)^b(B,10))|0)|0,n[A+16>>2]=i,j=l,l=t|16,j=(((j+n[l+r>>2]|0)+n[l+39360>>2]|0)+(v^u&(v^f))|0)+(b(u,26)^b(u,21)^b(u,7))|0,l=j+((i&(o|B)|o&B)+(b(i,30)^b(i,19)^b(i,10))|0)|0,n[A+12>>2]=l,j=y+j|0,n[A+28>>2]=j,y=t|20,v=(((v+n[y+r>>2]|0)+n[y+39360>>2]|0)+(f^j&(u^f))|0)+(b(j,26)^b(j,21)^b(j,7))|0,y=v+((l&(i|B)|i&B)+(b(l,30)^b(l,19)^b(l,10))|0)|0,n[A+8>>2]=y,v=o+v|0,n[A+24>>2]=v,o=t|24,f=(((f+n[o+r>>2]|0)+n[o+39360>>2]|0)+(u^v&(u^j))|0)+(b(v,26)^b(v,21)^b(v,7))|0,o=f+((y&(i|l)|i&l)+(b(y,30)^b(y,19)^b(y,10))|0)|0,n[A+4>>2]=o,f=B+f|0,n[A+20>>2]=f,B=t|28,u=(((u+n[B+r>>2]|0)+n[B+39360>>2]|0)+(j^f&(v^j))|0)+(b(f,26)^b(f,21)^b(f,7))|0,B=u+((o&(y|l)|y&l)+(b(o,30)^b(o,19)^b(o,10))|0)|0,n[A>>2]=B,u=i+u|0,n[A+16>>2]=u,i=t|32,j=(((j+n[i+r>>2]|0)+n[i+39360>>2]|0)+(v^u&(v^f))|0)+(b(u,26)^b(u,21)^b(u,7))|0,i=j+((B&(o|y)|o&y)+(b(B,30)^b(B,19)^b(B,10))|0)|0,n[A+28>>2]=i,j=l+j|0,n[A+12>>2]=j,l=t|36,M=l+r|0,v=(((v+n[M>>2]|0)+n[l+39360>>2]|0)+(f^j&(u^f))|0)+(b(j,26)^b(j,21)^b(j,7))|0,l=v+((i&(o|B)|o&B)+(b(i,30)^b(i,19)^b(i,10))|0)|0,n[A+24>>2]=l,v=y+v|0,n[A+8>>2]=v,y=t|40,X=y+r|0,f=(((f+n[X>>2]|0)+n[y+39360>>2]|0)+(u^v&(u^j))|0)+(b(v,26)^b(v,21)^b(v,7))|0,y=f+((l&(i|B)|i&B)+(b(l,30)^b(l,19)^b(l,10))|0)|0,n[A+20>>2]=y,f=o+f|0,n[A+4>>2]=f,o=t|44,K=o+r|0,u=((u+(n[o+39360>>2]+n[K>>2]|0)|0)+(j^f&(v^j))|0)+(b(f,26)^b(f,21)^b(f,7))|0,o=u+((y&(i|l)|i&l)+(b(y,30)^b(y,19)^b(y,10))|0)|0,n[A+16>>2]=o,B=u+B|0,n[A>>2]=B,u=t|48,O=u+r|0,j=((j+(n[u+39360>>2]+n[O>>2]|0)|0)+(v^B&(v^f))|0)+(b(B,26)^b(B,21)^b(B,7))|0,u=j+((o&(y|l)|y&l)+(b(o,30)^b(o,19)^b(o,10))|0)|0,n[A+12>>2]=u,i=i+j|0,n[A+28>>2]=i,j=t|52,U=j+r|0,j=(((n[j+39360>>2]+n[U>>2]|0)+v|0)+(f^i&(B^f))|0)+(b(i,26)^b(i,21)^b(i,7))|0,v=j+((u&(o|y)|o&y)+(b(u,30)^b(u,19)^b(u,10))|0)|0,n[A+8>>2]=v,l=l+j|0,n[A+24>>2]=l,g=t|56,j=g+r|0,g=(((n[g+39360>>2]+n[j>>2]|0)+f|0)+(B^l&(i^B))|0)+(b(l,26)^b(l,21)^b(l,7))|0,f=g+((v&(o|u)|o&u)+(b(v,30)^b(v,19)^b(v,10))|0)|0,n[A+4>>2]=f,y=y+g|0,n[A+20>>2]=y,t=t|60,x=t+r|0,t=((B+(n[t+39360>>2]+n[x>>2]|0)|0)+(i^y&(i^l))|0)+(b(y,26)^b(y,21)^b(y,7))|0,y=t+((f&(u|v)|u&v)+(b(f,30)^b(f,19)^b(f,10))|0)|0,n[A>>2]=y,n[A+16>>2]=t+o,(C|0)!=48){C=C+16|0,z=n[M>>2],M=n[j>>2],i=n[e>>2]+(z+(b(M,15)^b(M,13)^M>>>10)|0)|0,y=n[m>>2],t=i+(b(y,25)^b(y,14)^y>>>3)|0,n[(C<<2)+r>>2]=t,o=n[e+8>>2],B=n[e+44>>2],i=o+(B+(b(t,15)^b(t,13)^t>>>10)|0)|0,u=n[e+12>>2],i=i+(b(u,25)^b(u,14)^u>>>3)|0,n[e+72>>2]=i,m=n[e+40>>2],l=m+y|0,y=n[e+60>>2],o=(l+(b(y,15)^b(y,13)^y>>>10)|0)+(b(o,25)^b(o,14)^o>>>3)|0,n[e+68>>2]=o,l=n[e+16>>2],v=n[e+52>>2],j=l+(v+(b(i,15)^b(i,13)^i>>>10)|0)|0,g=n[e+20>>2],f=j+(b(g,25)^b(g,14)^g>>>3)|0,n[e+80>>2]=f,G=n[e+48>>2],l=(u+(G+(b(o,15)^b(o,13)^o>>>10)|0)|0)+(b(l,25)^b(l,14)^l>>>3)|0,n[e+76>>2]=l,u=n[e+24>>2],j=u+(y+(b(f,15)^b(f,13)^f>>>10)|0)|0,T=n[e+28>>2],j=j+(b(T,25)^b(T,14)^T>>>3)|0,n[e+88>>2]=j,d=n[e+56>>2],u=(g+(d+(b(l,15)^b(l,13)^l>>>10)|0)|0)+(b(u,25)^b(u,14)^u>>>3)|0,n[e+84>>2]=u,g=(t+T|0)+(b(u,15)^b(u,13)^u>>>10)|0,T=n[e+32>>2],g=g+(b(T,25)^b(T,14)^T>>>3)|0,n[e+92>>2]=g,T=(o+T|0)+(b(j,15)^b(j,13)^j>>>10)|0,o=n[e+36>>2],o=T+(b(o,25)^b(o,14)^o>>>3)|0,n[e+96>>2]=o,i=(i+((b(m,25)^b(m,14)^m>>>3)+z|0)|0)+(b(g,15)^b(g,13)^g>>>10)|0,n[e+100>>2]=i,B=(n[X>>2]+(l+(b(B,25)^b(B,14)^B>>>3)|0)|0)+(b(o,15)^b(o,13)^o>>>10)|0,n[e+104>>2]=B,i=(n[K>>2]+(f+(b(G,25)^b(G,14)^G>>>3)|0)|0)+(b(i,15)^b(i,13)^i>>>10)|0,n[e+108>>2]=i,B=(n[O>>2]+(u+(b(v,25)^b(v,14)^v>>>3)|0)|0)+(b(B,15)^b(B,13)^B>>>10)|0,n[e+112>>2]=B,i=(n[U>>2]+(j+(b(d,25)^b(d,14)^d>>>3)|0)|0)+(b(i,15)^b(i,13)^i>>>10)|0,n[e+116>>2]=i,$=e,J=(g+(M+(b(y,25)^b(y,14)^y>>>3)|0)|0)+(b(B,15)^b(B,13)^B>>>10)|0,n[$+120>>2]=J,$=e,J=(n[x>>2]+(o+(b(t,25)^b(t,14)^t>>>3)|0)|0)+(b(i,15)^b(i,13)^i>>>10)|0,n[$+124>>2]=J;continue}break}n[_>>2]=y+n[_>>2],n[_+4>>2]=n[_+4>>2]+n[A+4>>2],n[_+8>>2]=n[_+8>>2]+n[A+8>>2],n[_+12>>2]=n[_+12>>2]+n[A+12>>2],n[_+16>>2]=n[_+16>>2]+n[A+16>>2],n[_+20>>2]=n[_+20>>2]+n[A+20>>2],n[_+24>>2]=n[_+24>>2]+n[A+24>>2],n[_+28>>2]=n[_+28>>2]+n[A+28>>2]}function f4(_,e){var r=0,A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0;r=F-544|0,F=r,o=s[_+60|0]|s[_+61|0]<<8|(s[_+62|0]<<16|s[_+63|0]<<24),y=s[_+56|0]|s[_+57|0]<<8|(s[_+58|0]<<16|s[_+59|0]<<24),u=s[_+52|0]|s[_+53|0]<<8|(s[_+54|0]<<16|s[_+55|0]<<24),B=s[_+48|0]|s[_+49|0]<<8|(s[_+50|0]<<16|s[_+51|0]<<24),l=s[_+32|0]|s[_+33|0]<<8|(s[_+34|0]<<16|s[_+35|0]<<24),j=s[_+36|0]|s[_+37|0]<<8|(s[_+38|0]<<16|s[_+39|0]<<24),v=s[_+40|0]|s[_+41|0]<<8|(s[_+42|0]<<16|s[_+43|0]<<24),f=s[_+44|0]|s[_+45|0]<<8|(s[_+46|0]<<16|s[_+47|0]<<24),A=s[_+28|0]|s[_+29|0]<<8|(s[_+30|0]<<16|s[_+31|0]<<24),g=s[_+24|0]|s[_+25|0]<<8|(s[_+26|0]<<16|s[_+27|0]<<24),T=s[_+20|0]|s[_+21|0]<<8|(s[_+22|0]<<16|s[_+23|0]<<24),m=s[_+16|0]|s[_+17|0]<<8|(s[_+18|0]<<16|s[_+19|0]<<24),M=s[_+4|0]|s[_+5|0]<<8|(s[_+6|0]<<16|s[_+7|0]<<24),C=s[_+8|0]|s[_+9|0]<<8|(s[_+10|0]<<16|s[_+11|0]<<24),G=s[_+12|0]|s[_+13|0]<<8|(s[_+14|0]<<16|s[_+15|0]<<24),d=s[_|0]|s[_+1|0]<<8|(s[_+2|0]<<16|s[_+3|0]<<24),_=n[e+124>>2],n[r+536>>2]=n[e+120>>2],n[r+540>>2]=_,_=n[e+116>>2],n[r+528>>2]=n[e+112>>2],n[r+532>>2]=_,_=n[e+100>>2],n[r+496>>2]=n[e+96>>2],n[r+500>>2]=_,_=n[e+108>>2],n[r+504>>2]=n[e+104>>2],n[r+508>>2]=_,_=n[e+116>>2],n[r+480>>2]=n[e+112>>2],n[r+484>>2]=_,_=n[e+124>>2],n[r+488>>2]=n[e+120>>2],n[r+492>>2]=_,_=r+512|0,S0(_,r+496|0,r+480|0),i=n[r+524>>2],n[e+120>>2]=n[r+520>>2],n[e+124>>2]=i,i=n[r+516>>2],n[e+112>>2]=n[r+512>>2],n[e+116>>2]=i,i=n[e+84>>2],n[r+464>>2]=n[e+80>>2],n[r+468>>2]=i,i=n[e+92>>2],n[r+472>>2]=n[e+88>>2],n[r+476>>2]=i,i=n[e+100>>2],n[r+448>>2]=n[e+96>>2],n[r+452>>2]=i,i=n[e+108>>2],n[r+456>>2]=n[e+104>>2],n[r+460>>2]=i,S0(_,r+464|0,r+448|0),i=n[r+524>>2],n[e+104>>2]=n[r+520>>2],n[e+108>>2]=i,i=n[r+516>>2],n[e+96>>2]=n[r+512>>2],n[e+100>>2]=i,i=e- -64|0,t=n[i+4>>2],n[r+432>>2]=n[i>>2],n[r+436>>2]=t,t=n[e+76>>2],n[r+440>>2]=n[e+72>>2],n[r+444>>2]=t,t=n[e+84>>2],n[r+416>>2]=n[e+80>>2],n[r+420>>2]=t,t=n[e+92>>2],n[r+424>>2]=n[e+88>>2],n[r+428>>2]=t,S0(_,r+432|0,r+416|0),t=n[r+524>>2],n[e+88>>2]=n[r+520>>2],n[e+92>>2]=t,t=n[r+516>>2],n[e+80>>2]=n[r+512>>2],n[e+84>>2]=t,t=n[e+52>>2],n[r+400>>2]=n[e+48>>2],n[r+404>>2]=t,t=n[e+60>>2],n[r+408>>2]=n[e+56>>2],n[r+412>>2]=t,t=n[i+4>>2],n[r+384>>2]=n[i>>2],n[r+388>>2]=t,t=n[e+76>>2],n[r+392>>2]=n[e+72>>2],n[r+396>>2]=t,S0(_,r+400|0,r+384|0),t=n[r+524>>2],n[e+72>>2]=n[r+520>>2],n[e+76>>2]=t,t=n[r+516>>2],n[i>>2]=n[r+512>>2],n[i+4>>2]=t,t=n[e+36>>2],n[r+368>>2]=n[e+32>>2],n[r+372>>2]=t,t=n[e+44>>2],n[r+376>>2]=n[e+40>>2],n[r+380>>2]=t,t=n[e+52>>2],n[r+352>>2]=n[e+48>>2],n[r+356>>2]=t,t=n[e+60>>2],n[r+360>>2]=n[e+56>>2],n[r+364>>2]=t,S0(_,r+368|0,r+352|0),t=n[r+524>>2],n[e+56>>2]=n[r+520>>2],n[e+60>>2]=t,t=n[r+516>>2],n[e+48>>2]=n[r+512>>2],n[e+52>>2]=t,t=n[e+20>>2],n[r+336>>2]=n[e+16>>2],n[r+340>>2]=t,t=n[e+28>>2],n[r+344>>2]=n[e+24>>2],n[r+348>>2]=t,t=n[e+36>>2],n[r+320>>2]=n[e+32>>2],n[r+324>>2]=t,t=n[e+44>>2],n[r+328>>2]=n[e+40>>2],n[r+332>>2]=t,S0(_,r+336|0,r+320|0),t=n[r+524>>2],n[e+40>>2]=n[r+520>>2],n[e+44>>2]=t,t=n[r+516>>2],n[e+32>>2]=n[r+512>>2],n[e+36>>2]=t,t=n[e+4>>2],n[r+304>>2]=n[e>>2],n[r+308>>2]=t,t=n[e+12>>2],n[r+312>>2]=n[e+8>>2],n[r+316>>2]=t,t=n[e+20>>2],n[r+288>>2]=n[e+16>>2],n[r+292>>2]=t,t=n[e+28>>2],n[r+296>>2]=n[e+24>>2],n[r+300>>2]=t,S0(_,r+304|0,r+288|0),t=n[r+524>>2],n[e+24>>2]=n[r+520>>2],n[e+28>>2]=t,t=n[r+516>>2],n[e+16>>2]=n[r+512>>2],n[e+20>>2]=t,t=n[r+532>>2],n[r+272>>2]=n[r+528>>2],n[r+276>>2]=t,t=n[r+540>>2],n[r+280>>2]=n[r+536>>2],n[r+284>>2]=t,t=n[e+4>>2],n[r+256>>2]=n[e>>2],n[r+260>>2]=t,t=n[e+12>>2],n[r+264>>2]=n[e+8>>2],n[r+268>>2]=t,S0(_,r+272|0,r+256|0),t=n[r+524>>2],n[e+8>>2]=n[r+520>>2],n[e+12>>2]=t,t=n[r+516>>2],n[e>>2]=n[r+512>>2],n[e+4>>2]=t,n[e+12>>2]=n[e+12>>2]^G,n[e+8>>2]=n[e+8>>2]^C,n[e+4>>2]=n[e+4>>2]^M,n[e>>2]=n[e>>2]^d,n[i>>2]=n[i>>2]^m,n[e+68>>2]=n[e+68>>2]^T,n[e+72>>2]=n[e+72>>2]^g,n[e+76>>2]=n[e+76>>2]^A,A=n[e+124>>2],n[r+536>>2]=n[e+120>>2],n[r+540>>2]=A,A=n[e+116>>2],n[r+528>>2]=n[e+112>>2],n[r+532>>2]=A,A=n[e+100>>2],n[r+240>>2]=n[e+96>>2],n[r+244>>2]=A,A=n[e+108>>2],n[r+248>>2]=n[e+104>>2],n[r+252>>2]=A,A=n[e+116>>2],n[r+224>>2]=n[e+112>>2],n[r+228>>2]=A,A=n[e+124>>2],n[r+232>>2]=n[e+120>>2],n[r+236>>2]=A,S0(_,r+240|0,r+224|0),A=n[r+524>>2],n[e+120>>2]=n[r+520>>2],n[e+124>>2]=A,A=n[r+516>>2],n[e+112>>2]=n[r+512>>2],n[e+116>>2]=A,A=n[e+84>>2],n[r+208>>2]=n[e+80>>2],n[r+212>>2]=A,A=n[e+92>>2],n[r+216>>2]=n[e+88>>2],n[r+220>>2]=A,A=n[e+100>>2],n[r+192>>2]=n[e+96>>2],n[r+196>>2]=A,A=n[e+108>>2],n[r+200>>2]=n[e+104>>2],n[r+204>>2]=A,S0(_,r+208|0,r+192|0),A=n[r+524>>2],n[e+104>>2]=n[r+520>>2],n[e+108>>2]=A,A=n[r+516>>2],n[e+96>>2]=n[r+512>>2],n[e+100>>2]=A,A=n[i+4>>2],n[r+176>>2]=n[i>>2],n[r+180>>2]=A,A=n[e+76>>2],n[r+184>>2]=n[e+72>>2],n[r+188>>2]=A,A=n[e+84>>2],n[r+160>>2]=n[e+80>>2],n[r+164>>2]=A,A=n[e+92>>2],n[r+168>>2]=n[e+88>>2],n[r+172>>2]=A,S0(_,r+176|0,r+160|0),A=n[r+524>>2],n[e+88>>2]=n[r+520>>2],n[e+92>>2]=A,A=n[r+516>>2],n[e+80>>2]=n[r+512>>2],n[e+84>>2]=A,A=n[e+52>>2],n[r+144>>2]=n[e+48>>2],n[r+148>>2]=A,A=n[e+60>>2],n[r+152>>2]=n[e+56>>2],n[r+156>>2]=A,A=n[i+4>>2],n[r+128>>2]=n[i>>2],n[r+132>>2]=A,A=n[e+76>>2],n[r+136>>2]=n[e+72>>2],n[r+140>>2]=A,S0(_,r+144|0,r+128|0),A=n[r+524>>2],n[e+72>>2]=n[r+520>>2],n[e+76>>2]=A,A=n[r+516>>2],n[i>>2]=n[r+512>>2],n[i+4>>2]=A,A=n[e+36>>2],n[r+112>>2]=n[e+32>>2],n[r+116>>2]=A,A=n[e+44>>2],n[r+120>>2]=n[e+40>>2],n[r+124>>2]=A,A=n[e+52>>2],n[r+96>>2]=n[e+48>>2],n[r+100>>2]=A,A=n[e+60>>2],n[r+104>>2]=n[e+56>>2],n[r+108>>2]=A,S0(_,r+112|0,r+96|0),A=n[r+524>>2],n[e+56>>2]=n[r+520>>2],n[e+60>>2]=A,A=n[r+516>>2],n[e+48>>2]=n[r+512>>2],n[e+52>>2]=A,A=n[e+20>>2],n[r+80>>2]=n[e+16>>2],n[r+84>>2]=A,A=n[e+28>>2],n[r+88>>2]=n[e+24>>2],n[r+92>>2]=A,A=n[e+36>>2],n[r+64>>2]=n[e+32>>2],n[r+68>>2]=A,A=n[e+44>>2],n[r+72>>2]=n[e+40>>2],n[r+76>>2]=A,S0(_,r+80|0,r- -64|0),A=n[r+524>>2],n[e+40>>2]=n[r+520>>2],n[e+44>>2]=A,A=n[r+516>>2],n[e+32>>2]=n[r+512>>2],n[e+36>>2]=A,A=n[e+4>>2],n[r+48>>2]=n[e>>2],n[r+52>>2]=A,A=n[e+12>>2],n[r+56>>2]=n[e+8>>2],n[r+60>>2]=A,A=n[e+20>>2],n[r+32>>2]=n[e+16>>2],n[r+36>>2]=A,A=n[e+28>>2],n[r+40>>2]=n[e+24>>2],n[r+44>>2]=A,S0(_,r+48|0,r+32|0),A=n[r+524>>2],n[e+24>>2]=n[r+520>>2],n[e+28>>2]=A,A=n[r+516>>2],n[e+16>>2]=n[r+512>>2],n[e+20>>2]=A,A=n[r+532>>2],n[r+16>>2]=n[r+528>>2],n[r+20>>2]=A,A=n[r+540>>2],n[r+24>>2]=n[r+536>>2],n[r+28>>2]=A,A=n[e+4>>2],n[r>>2]=n[e>>2],n[r+4>>2]=A,A=n[e+12>>2],n[r+8>>2]=n[e+8>>2],n[r+12>>2]=A,S0(_,r+16|0,r),_=n[r+524>>2],n[e+8>>2]=n[r+520>>2],n[e+12>>2]=_,_=n[r+516>>2],n[e>>2]=n[r+512>>2],n[e+4>>2]=_,n[e+12>>2]=n[e+12>>2]^f,n[e+8>>2]=n[e+8>>2]^v,n[e+4>>2]=n[e+4>>2]^j,n[e>>2]=n[e>>2]^l,n[i>>2]=n[i>>2]^B,n[e+68>>2]=n[e+68>>2]^u,n[e+72>>2]=n[e+72>>2]^y,n[e+76>>2]=n[e+76>>2]^o,F=r+544|0}function a4(_,e){var r=0,A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0,x=0,z=0,$=0,J=0,A0=0,n0=0,t0=0,_0=0,s0=0,o0=0,B0=0,u0=0,l0=0,j0=0,v0=0,f0=0,c0=0,q0=0,P0=0,m0=0,C0=0,M0=0,I0=0,G0=0,d0=0,L0=0,F0=0,K0=0,N0=0,O0=0,V0=0,z0=0,$0=0,Z0=0;o0=n[e+12>>2],d=o0<<1,U=d>>31,i=n[e+4>>2],g=i<<1,X=g>>31,r=q(d,U,g,X),t=p,j=n[e+8>>2],c0=j,B0=j>>31,v=q(j,B0,j,B0),A=v+r|0,r=p+t|0,r=A>>>0<v>>>0?r+1|0:r,y=n[e+16>>2],x=y>>31,o=n[e>>2],v=o<<1,K=v>>31,t=q(y,x,v,K),A=t+A|0,r=p+r|0,r=A>>>0<t>>>0?r+1|0:r,n0=n[e+28>>2],z=E0(n0,38),u0=z>>31,q0=n0>>31,t=q(z,u0,n0,q0),A=t+A|0,r=p+r|0,r=A>>>0<t>>>0?r+1|0:r,t=A,t0=n[e+32>>2],B=E0(t0,19),$=B>>31,T=n[e+24>>2],A=T<<1,u=q(B,$,A,A>>31),t=t+u|0,A=p+r|0,A=t>>>0<u>>>0?A+1|0:A,L0=n[e+36>>2],u=E0(L0,38),O=u>>31,J=n[e+20>>2],m=J<<1,_0=m>>31,r=q(u,O,m,_0),t=r+t|0,e=p+A|0,r=(r>>>0>t>>>0?e+1|0:e)<<1|t>>>31,K0=r,P0=t<<1,A=P0+33554432|0,r=A>>>0<33554432?r+1|0:r,N0=A,O0=r,e=r>>26,f=(r&67108863)<<6|A>>>26,r=q(g,X,y,x),t=p,j=j<<1,s0=j>>31,m0=o0>>31,M=q(j,s0,o0,m0),A=M+r|0,r=p+t|0,r=A>>>0<M>>>0?r+1|0:r,j0=J>>31,M=q(J,j0,v,K),t=M+A|0,A=p+r|0,A=t>>>0<M>>>0?A+1|0:A,M=n0<<1,C0=M>>31,v0=q(B,$,M,C0),t=v0+t|0,r=p+A|0,r=t>>>0<v0>>>0?r+1|0:r,A0=T>>31,A=q(u,O,T,A0),t=A+t|0,r=p+r|0,A=(A>>>0>t>>>0?r+1|0:r)<<1|t>>>31,r=t<<1,t=r+f|0,e=e+A|0,v0=t,e=r>>>0>t>>>0?e+1|0:e,r=e,t=t+16777216|0,r=t>>>0<16777216?r+1|0:r,V0=t,f=(r&33554431)<<7|t>>>25,t=r>>25,e=q(d,U,o0,m0),r=p,A=q(y,x,j,s0),e=A+e|0,r=p+r|0,r=e>>>0<A>>>0?r+1|0:r,A=q(g,X,m,_0),e=A+e|0,r=p+r|0,r=e>>>0<A>>>0?r+1|0:r,C=q(v,K,T,A0),A=C+e|0,e=p+r|0,e=A>>>0<C>>>0?e+1|0:e,f0=t0>>31,C=q(B,$,t0,f0),A=C+A|0,r=p+e|0,r=A>>>0<C>>>0?r+1|0:r,C=q(u,O,M,C0),e=C+A|0,A=p+r|0,r=e,e=(r>>>0<C>>>0?A+1|0:A)<<1|r>>>31,A=f,f=r<<1,A=A+f|0,r=e+t|0,r=A>>>0<f>>>0?r+1|0:r,e=A+33554432|0,r=e>>>0<33554432?r+1|0:r,C=e,t=r,n[_+24>>2]=A-(e&-67108864),e=E0(J,38),A=q(e,e>>31,J,j0),f=p,e=o,r=e>>31,r=q(e,r,e,r),e=r+A|0,A=p+f|0,A=e>>>0<r>>>0?A+1|0:A,o=E0(T,19),M0=o>>31,f=y<<1,I0=f>>31,G=q(o,M0,f,I0),e=G+e|0,r=p+A|0,r=e>>>0<G>>>0?r+1|0:r,A=q(d,U,z,u0),e=A+e|0,r=p+r|0,r=e>>>0<A>>>0?r+1|0:r,G=q(B,$,j,s0),A=G+e|0,e=p+r|0,e=A>>>0<G>>>0?e+1|0:e,G=q(g,X,u,O),A=G+A|0,r=p+e|0,G0=A<<1,r=(A>>>0<G>>>0?r+1|0:r)<<1|A>>>31,G=r,e=G0+33554432|0,A=e>>>0<33554432?r+1|0:r,z0=e,$0=A,l0=(A&67108863)<<6|e>>>26,d0=A>>26,e=q(o,M0,m,_0),r=p,F0=i>>31,A=q(v,K,i,F0),e=A+e|0,r=p+r|0,r=e>>>0<A>>>0?r+1|0:r,l=q(y,x,z,u0),A=l+e|0,e=p+r|0,e=A>>>0<l>>>0?e+1|0:e,l=q(B,$,d,U),A=l+A|0,r=p+e|0,r=A>>>0<l>>>0?r+1|0:r,e=q(u,O,c0,B0),l=e+A|0,A=p+r|0,e=(e>>>0>l>>>0?A+1|0:A)<<1|l>>>31,l=l<<1,A=l+l0|0,r=e+d0|0,r=A>>>0<l>>>0?r+1|0:r,d0=A,A=A+16777216|0,r=A>>>0<16777216?r+1|0:r,l=A,Z0=(r&33554431)<<7|A>>>25,l0=r>>25,e=q(v,K,c0,B0),r=p,A=q(g,X,i,F0),e=A+e|0,r=p+r|0,r=e>>>0<A>>>0?r+1|0:r,i=q(o,M0,T,A0),e=i+e|0,A=p+r|0,A=e>>>0<i>>>0?A+1|0:A,i=q(m,_0,z,u0),e=i+e|0,r=p+A|0,r=e>>>0<i>>>0?r+1|0:r,A=q(B,$,f,I0),e=A+e|0,r=p+r|0,r=e>>>0<A>>>0?r+1|0:r,i=q(u,O,d,U),A=i+e|0,e=p+r|0,r=(A>>>0<i>>>0?e+1|0:e)<<1|A>>>31,A=A<<1,e=A+Z0|0,r=r+l0|0,o=e,r=e>>>0<A>>>0?r+1|0:r,e=e+33554432|0,A=e>>>0<33554432?r+1|0:r,l0=e,i=A,n[_+8>>2]=o-(e&-67108864),e=q(j,s0,J,j0),A=p,o=q(y,x,d,U),r=o+e|0,e=p+A|0,e=r>>>0<o>>>0?e+1|0:e,o=q(g,X,T,A0),A=o+r|0,r=p+e|0,r=A>>>0<o>>>0?r+1|0:r,o=q(v,K,n0,q0),e=o+A|0,A=p+r|0,A=e>>>0<o>>>0?A+1|0:A,o=q(u,O,t0,f0),e=o+e|0,r=p+A|0,r=(e>>>0<o>>>0?r+1|0:r)<<1|e>>>31,A=t>>26,o=e<<1,e=(t&67108863)<<6|C>>>26,t=o+e|0,r=r+A|0,A=t,e=A>>>0<e>>>0?r+1|0:r,r=A+16777216|0,e=r>>>0<16777216?e+1|0:e,o=r,t=e,n[_+28>>2]=A-(r&-33554432),e=q(v,K,o0,m0),r=p,A=q(g,X,c0,B0),e=A+e|0,r=p+r|0,r=e>>>0<A>>>0?r+1|0:r,A=q(T,A0,z,u0),e=A+e|0,r=p+r|0,r=e>>>0<A>>>0?r+1|0:r,B=q(B,$,m,_0),A=B+e|0,e=p+r|0,e=A>>>0<B>>>0?e+1|0:e,B=q(u,O,y,x),r=B+A|0,A=p+e|0,e=r,r=(r>>>0<B>>>0?A+1|0:A)<<1|r>>>31,A=e<<1,e=i>>26,i=(i&67108863)<<6|l0>>>26,A=A+i|0,r=e+r|0,r=A>>>0<i>>>0?r+1|0:r,e=A+16777216|0,r=e>>>0<16777216?r+1|0:r,B=e,i=r,n[_+12>>2]=A-(e&-33554432),e=q(T,A0,j,s0),r=p,A=q(y,x,y,x),e=A+e|0,r=p+r|0,r=e>>>0<A>>>0?r+1|0:r,A=q(d,U,m,_0),e=A+e|0,r=p+r|0,r=e>>>0<A>>>0?r+1|0:r,A=q(g,X,M,C0),e=A+e|0,r=p+r|0,r=e>>>0<A>>>0?r+1|0:r,y=q(v,K,t0,f0),A=y+e|0,e=p+r|0,e=A>>>0<y>>>0?e+1|0:e,r=u,u=L0,m=u>>31,y=q(r,O,u,m),r=y+A|0,A=p+e|0,e=r,r=(r>>>0<y>>>0?A+1|0:A)<<1|r>>>31,A=e<<1,e=t>>25,t=(t&33554431)<<7|o>>>25,A=A+t|0,r=e+r|0,r=A>>>0<t>>>0?r+1|0:r,e=A+33554432|0,r=e>>>0<33554432?r+1|0:r,y=e,t=r,n[_+32>>2]=A-(e&-67108864),z=v0-(V0&-33554432)|0,r=i>>25,i=(i&33554431)<<7|B>>>25,e=N0&-67108864,A=i+(P0-e|0)|0,e=r+(K0-((e>>>0>P0>>>0)+O0|0)|0)|0,e=A>>>0<i>>>0?e+1|0:e,i=A,r=e,A=A+33554432|0,r=A>>>0<33554432?r+1|0:r,e=((r&67108863)<<6|A>>>26)+z|0,n[_+20>>2]=e,n[_+16>>2]=i-(A&-67108864),e=q(d,U,T,A0),A=p,i=q(J,j0,f,I0),r=i+e|0,e=p+A|0,e=r>>>0<i>>>0?e+1|0:e,i=q(j,s0,n0,q0),A=i+r|0,r=p+e|0,r=A>>>0<i>>>0?r+1|0:r,i=q(g,X,t0,f0),e=i+A|0,A=p+r|0,A=e>>>0<i>>>0?A+1|0:A,i=q(v,K,u,m),e=i+e|0,r=p+A|0,r=(e>>>0<i>>>0?r+1|0:r)<<1|e>>>31,A=t>>26,i=e<<1,e=(t&67108863)<<6|y>>>26,t=i+e|0,r=r+A|0,e=e>>>0>t>>>0?r+1|0:r,r=t+16777216|0,e=r>>>0<16777216?e+1|0:e,n[_+36>>2]=t-(r&-33554432),i=d0-(l&-33554432)|0,A=z0&-67108864,t=G0-A|0,g=G-((A>>>0>G0>>>0)+$0|0)|0,e=q((e&33554431)<<7|r>>>25,e>>25,19,0),r=e+t|0,A=p+g|0,t=r,e=e>>>0>r>>>0?A+1|0:A,r=r+33554432|0,e=r>>>0<33554432?e+1|0:e,e=((e&67108863)<<6|r>>>26)+i|0,n[_+4>>2]=e,n[_>>2]=t-(r&-67108864)}function Wt(_,e,r,A,t,i,o,y,u){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0,i=i|0,o=o|0,y=y|0,u=u|0;var B=0,l=0,j=0,v=0,f=0,g=0,T=0;if(B=F-528|0,F=B,j4(u,y,B+400|0),u=0,o>>>0>31)for(y=32;c4(i+u|0,B+400|0),u=y,y=y+32|0,y>>>0<=o>>>0;);if(y=u|16,y>>>0<=o>>>0)for(;u=i+u|0,j=s[u|0]|s[u+1|0]<<8|(s[u+2|0]<<16|s[u+3|0]<<24),v=s[u+4|0]|s[u+5|0]<<8|(s[u+6|0]<<16|s[u+7|0]<<24),f=s[u+8|0]|s[u+9|0]<<8|(s[u+10|0]<<16|s[u+11|0]<<24),g=s[u+12|0]|s[u+13|0]<<8|(s[u+14|0]<<16|s[u+15|0]<<24),u=n[B+492>>2],n[B+520>>2]=n[B+488>>2],n[B+524>>2]=u,u=n[B+484>>2],n[B+512>>2]=n[B+480>>2],n[B+516>>2]=u,u=n[B+468>>2],n[B+368>>2]=n[B+464>>2],n[B+372>>2]=u,u=n[B+476>>2],n[B+376>>2]=n[B+472>>2],n[B+380>>2]=u,u=n[B+484>>2],n[B+352>>2]=n[B+480>>2],n[B+356>>2]=u,u=n[B+492>>2],n[B+360>>2]=n[B+488>>2],n[B+364>>2]=u,u=B+496|0,S0(u,B+368|0,B+352|0),l=n[B+508>>2],n[B+488>>2]=n[B+504>>2],n[B+492>>2]=l,l=n[B+500>>2],n[B+480>>2]=n[B+496>>2],n[B+484>>2]=l,l=n[B+452>>2],n[B+336>>2]=n[B+448>>2],n[B+340>>2]=l,l=n[B+460>>2],n[B+344>>2]=n[B+456>>2],n[B+348>>2]=l,l=n[B+468>>2],n[B+320>>2]=n[B+464>>2],n[B+324>>2]=l,l=n[B+476>>2],n[B+328>>2]=n[B+472>>2],n[B+332>>2]=l,S0(u,B+336|0,B+320|0),l=n[B+508>>2],n[B+472>>2]=n[B+504>>2],n[B+476>>2]=l,l=n[B+500>>2],n[B+464>>2]=n[B+496>>2],n[B+468>>2]=l,l=n[B+436>>2],n[B+304>>2]=n[B+432>>2],n[B+308>>2]=l,l=n[B+444>>2],n[B+312>>2]=n[B+440>>2],n[B+316>>2]=l,l=n[B+452>>2],n[B+288>>2]=n[B+448>>2],n[B+292>>2]=l,l=n[B+460>>2],n[B+296>>2]=n[B+456>>2],n[B+300>>2]=l,S0(u,B+304|0,B+288|0),l=n[B+508>>2],n[B+456>>2]=n[B+504>>2],n[B+460>>2]=l,l=n[B+500>>2],n[B+448>>2]=n[B+496>>2],n[B+452>>2]=l,l=n[B+420>>2],n[B+272>>2]=n[B+416>>2],n[B+276>>2]=l,l=n[B+428>>2],n[B+280>>2]=n[B+424>>2],n[B+284>>2]=l,l=n[B+436>>2],n[B+256>>2]=n[B+432>>2],n[B+260>>2]=l,l=n[B+444>>2],n[B+264>>2]=n[B+440>>2],n[B+268>>2]=l,S0(u,B+272|0,B+256|0),l=n[B+508>>2],n[B+440>>2]=n[B+504>>2],n[B+444>>2]=l,l=n[B+500>>2],n[B+432>>2]=n[B+496>>2],n[B+436>>2]=l,l=n[B+404>>2],n[B+240>>2]=n[B+400>>2],n[B+244>>2]=l,l=n[B+412>>2],n[B+248>>2]=n[B+408>>2],n[B+252>>2]=l,l=n[B+420>>2],n[B+224>>2]=n[B+416>>2],n[B+228>>2]=l,l=n[B+428>>2],n[B+232>>2]=n[B+424>>2],n[B+236>>2]=l,S0(u,B+240|0,B+224|0),l=n[B+508>>2],n[B+424>>2]=n[B+504>>2],n[B+428>>2]=l,l=n[B+500>>2],n[B+416>>2]=n[B+496>>2],n[B+420>>2]=l,l=n[B+516>>2],n[B+208>>2]=n[B+512>>2],n[B+212>>2]=l,l=n[B+524>>2],n[B+216>>2]=n[B+520>>2],n[B+220>>2]=l,l=n[B+404>>2],n[B+192>>2]=n[B+400>>2],n[B+196>>2]=l,l=n[B+412>>2],n[B+200>>2]=n[B+408>>2],n[B+204>>2]=l,S0(u,B+208|0,B+192|0),n[B+412>>2]=g^n[B+508>>2],n[B+408>>2]=n[B+504>>2]^f,n[B+404>>2]=n[B+500>>2]^v,n[B+400>>2]=j^n[B+496>>2],u=y,y=y+16|0,y>>>0<=o>>>0;);if(y=o&15,y&&(j=16-y|0,j&&B2(y|B+384,0,j),y&&b0(B+384|0,i+u|0,y),v=n[B+384>>2],f=n[B+388>>2],g=n[B+392>>2],l=n[B+396>>2],u=n[B+492>>2],i=n[B+488>>2],n[B+520>>2]=i,n[B+524>>2]=u,j=n[B+484>>2],y=n[B+480>>2],n[B+512>>2]=y,n[B+516>>2]=j,T=n[B+468>>2],n[B+176>>2]=n[B+464>>2],n[B+180>>2]=T,T=n[B+476>>2],n[B+184>>2]=n[B+472>>2],n[B+188>>2]=T,n[B+160>>2]=y,n[B+164>>2]=j,n[B+168>>2]=i,n[B+172>>2]=u,i=B+496|0,S0(i,B+176|0,B+160|0),y=n[B+508>>2],n[B+488>>2]=n[B+504>>2],n[B+492>>2]=y,y=n[B+500>>2],n[B+480>>2]=n[B+496>>2],n[B+484>>2]=y,y=n[B+452>>2],n[B+144>>2]=n[B+448>>2],n[B+148>>2]=y,y=n[B+460>>2],n[B+152>>2]=n[B+456>>2],n[B+156>>2]=y,y=n[B+468>>2],n[B+128>>2]=n[B+464>>2],n[B+132>>2]=y,y=n[B+476>>2],n[B+136>>2]=n[B+472>>2],n[B+140>>2]=y,S0(i,B+144|0,B+128|0),y=n[B+508>>2],n[B+472>>2]=n[B+504>>2],n[B+476>>2]=y,y=n[B+500>>2],n[B+464>>2]=n[B+496>>2],n[B+468>>2]=y,y=n[B+436>>2],n[B+112>>2]=n[B+432>>2],n[B+116>>2]=y,y=n[B+444>>2],n[B+120>>2]=n[B+440>>2],n[B+124>>2]=y,y=n[B+452>>2],n[B+96>>2]=n[B+448>>2],n[B+100>>2]=y,y=n[B+460>>2],n[B+104>>2]=n[B+456>>2],n[B+108>>2]=y,S0(i,B+112|0,B+96|0),y=n[B+508>>2],n[B+456>>2]=n[B+504>>2],n[B+460>>2]=y,y=n[B+500>>2],n[B+448>>2]=n[B+496>>2],n[B+452>>2]=y,y=n[B+420>>2],n[B+80>>2]=n[B+416>>2],n[B+84>>2]=y,y=n[B+428>>2],n[B+88>>2]=n[B+424>>2],n[B+92>>2]=y,y=n[B+436>>2],n[B+64>>2]=n[B+432>>2],n[B+68>>2]=y,y=n[B+444>>2],n[B+72>>2]=n[B+440>>2],n[B+76>>2]=y,S0(i,B+80|0,B- -64|0),y=n[B+508>>2],n[B+440>>2]=n[B+504>>2],n[B+444>>2]=y,y=n[B+500>>2],n[B+432>>2]=n[B+496>>2],n[B+436>>2]=y,y=n[B+404>>2],n[B+48>>2]=n[B+400>>2],n[B+52>>2]=y,y=n[B+412>>2],n[B+56>>2]=n[B+408>>2],n[B+60>>2]=y,y=n[B+420>>2],n[B+32>>2]=n[B+416>>2],n[B+36>>2]=y,y=n[B+428>>2],n[B+40>>2]=n[B+424>>2],n[B+44>>2]=y,S0(i,B+48|0,B+32|0),y=n[B+508>>2],n[B+424>>2]=n[B+504>>2],n[B+428>>2]=y,y=n[B+500>>2],n[B+416>>2]=n[B+496>>2],n[B+420>>2]=y,y=n[B+516>>2],n[B+16>>2]=n[B+512>>2],n[B+20>>2]=y,y=n[B+524>>2],n[B+24>>2]=n[B+520>>2],n[B+28>>2]=y,y=n[B+404>>2],n[B>>2]=n[B+400>>2],n[B+4>>2]=y,y=n[B+412>>2],n[B+8>>2]=n[B+408>>2],n[B+12>>2]=y,S0(i,B+16|0,B),n[B+412>>2]=l^n[B+508>>2],n[B+408>>2]=g^n[B+504>>2],n[B+404>>2]=f^n[B+500>>2],n[B+400>>2]=v^n[B+496>>2]),u=16,y=0,t>>>0>=16)for(;S4(_+y|0,A+y|0,B+400|0),y=u,u=y+16|0,u>>>0<=t>>>0;);i=t&15;r:{if(!i||(u=16-i|0,u&&B2(i|B+384,0,u),u=!i,u||b0(B+384|0,A+y|0,i),A=B+512|0,S4(A,B+384|0,B+400|0),u))break r;b0(_+y|0,A,i)}return w4(e,r,o,t,B+400|0),F=B+528|0,0}function N(_,e){var r=0,A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0,x=0,z=0,$=0,J=0,A0=0,n0=0,t0=0,_0=0,s0=0,o0=0,B0=0,u0=0,l0=0,j0=0,v0=0,f0=0,c0=0,q0=0,P0=0,m0=0,C0=0,M0=0,I0=0,G0=0,d0=0,L0=0,F0=0,K0=0,N0=0,O0=0,V0=0;u0=n[e+12>>2],m=u0<<1,d=m>>31,q0=u0>>31,r=q(m,d,u0,q0),t=p,o=n[e+16>>2],X=o>>31,i=n[e+8>>2],O=i<<1,J=O>>31,l=q(o,X,O,J),A=l+r|0,r=p+t|0,r=A>>>0<l>>>0?r+1|0:r,U=n[e+20>>2],g=U<<1,A0=g>>31,y=n[e+4>>2],l=y<<1,M=l>>31,j=q(g,A0,l,M),t=j+A|0,A=p+r|0,A=t>>>0<j>>>0?A+1|0:A,T=n[e+24>>2],x=T>>31,n0=n[e>>2],j=n0<<1,C=j>>31,u=q(T,x,j,C),t=u+t|0,r=p+A|0,r=t>>>0<u>>>0?r+1|0:r,A=t,t0=n[e+32>>2],v=E0(t0,19),z=v>>31,v0=t0>>31,t=q(v,z,t0,v0),A=A+t|0,r=p+r|0,r=A>>>0<t>>>0?r+1|0:r,d0=n[e+36>>2],u=E0(d0,38),G=u>>31,_0=n[e+28>>2],f0=_0<<1,P0=f0>>31,t=q(u,G,f0,P0),A=t+A|0,e=p+r|0,$=A,t=A>>>0<t>>>0?e+1|0:e,e=q(l,M,o,X),r=p,A=q(O,J,u0,q0),e=A+e|0,r=p+r|0,r=e>>>0<A>>>0?r+1|0:r,c0=U>>31,B=q(U,c0,j,C),e=B+e|0,A=p+r|0,A=e>>>0<B>>>0?A+1|0:A,B=q(v,z,f0,P0),e=B+e|0,r=p+A|0,r=e>>>0<B>>>0?r+1|0:r,A=q(u,G,T,x),e=A+e|0,r=p+r|0,m0=e,f=e>>>0<A>>>0?r+1|0:r,r=q(l,M,m,d),A=p,e=i,K=e>>31,C0=e,i=q(e,K,e,K),r=i+r|0,e=p+A|0,e=r>>>0<i>>>0?e+1|0:e,i=q(j,C,o,X),A=i+r|0,r=p+e|0,r=A>>>0<i>>>0?r+1|0:r,B=E0(_0,38),l0=B>>31,M0=_0>>31,i=q(B,l0,_0,M0),e=i+A|0,A=p+r|0,A=e>>>0<i>>>0?A+1|0:A,r=e,e=T<<1,i=q(v,z,e,e>>31),e=r+i|0,r=p+A|0,r=e>>>0<i>>>0?r+1|0:r,A=e,e=q(u,G,g,A0),A=A+e|0,r=p+r|0,L0=A,r=e>>>0>A>>>0?r+1|0:r,F0=r,e=r,A=A+33554432|0,e=A>>>0<33554432?e+1|0:e,K0=A,N0=e,r=e>>26,A=(e&67108863)<<6|A>>>26,e=A+m0|0,r=r+f|0,m0=e,r=e>>>0<A>>>0?r+1|0:r,e=e+16777216|0,A=e>>>0<16777216?r+1|0:r,O0=e,r=A>>25,e=(A&33554431)<<7|e>>>25,A=e+$|0,r=r+t|0,e=e>>>0>A>>>0?r+1|0:r,r=A+33554432|0,e=r>>>0<33554432?e+1|0:e,$=r,i=e,n[_+24>>2]=A-(r&-67108864),e=q(j,C,C0,K),r=p,s0=y>>31,t=q(l,M,y,s0),e=t+e|0,A=p+r|0,A=e>>>0<t>>>0?A+1|0:A,t=E0(T,19),j0=t>>31,f=q(t,j0,T,x),e=f+e|0,r=p+A|0,r=e>>>0<f>>>0?r+1|0:r,f=q(g,A0,B,l0),A=f+e|0,e=p+r|0,e=A>>>0<f>>>0?e+1|0:e,f=o<<1,I0=f>>31,o0=q(v,z,f,I0),A=o0+A|0,r=p+e|0,r=A>>>0<o0>>>0?r+1|0:r,e=A,A=q(u,G,m,d),e=e+A|0,r=p+r|0,B0=e,o0=e>>>0<A>>>0?r+1|0:r,e=q(g,A0,t,j0),r=p,y=q(j,C,y,s0),e=y+e|0,A=p+r|0,A=e>>>0<y>>>0?A+1|0:A,y=q(o,X,B,l0),e=y+e|0,r=p+A|0,r=e>>>0<y>>>0?r+1|0:r,y=q(v,z,m,d),A=y+e|0,e=p+r|0,e=A>>>0<y>>>0?e+1|0:e,y=q(u,G,C0,K),A=y+A|0,r=p+e|0,G0=A,s0=A>>>0<y>>>0?r+1|0:r,e=E0(U,38),A=q(e,e>>31,U,c0),y=p,e=n0,r=e>>31,n0=A,A=q(e,r,e,r),e=n0+A|0,r=p+y|0,r=e>>>0<A>>>0?r+1|0:r,t=q(t,j0,f,I0),e=t+e|0,A=p+r|0,A=e>>>0<t>>>0?A+1|0:A,t=q(m,d,B,l0),e=t+e|0,r=p+A|0,r=e>>>0<t>>>0?r+1|0:r,t=q(v,z,O,J),A=t+e|0,e=p+r|0,e=A>>>0<t>>>0?e+1|0:e,t=q(l,M,u,G),A=t+A|0,r=p+e|0,y=A,r=A>>>0<t>>>0?r+1|0:r,n0=r,A=A+33554432|0,r=A>>>0<33554432?r+1|0:r,j0=A,V0=r,e=r>>26,r=(r&67108863)<<6|A>>>26,t=r+G0|0,A=e+s0|0,s0=t,r=r>>>0>t>>>0?A+1|0:A,A=t+16777216|0,r=A>>>0<16777216?r+1|0:r,G0=A,t=(r&33554431)<<7|A>>>25,A=t+B0|0,r=(r>>25)+o0|0,r=A>>>0<t>>>0?r+1|0:r,e=A+33554432|0,r=e>>>0<33554432?r+1|0:r,o0=e,t=r,n[_+8>>2]=A-(e&-67108864),e=q(O,J,U,c0),r=p,A=q(o,X,m,d),e=A+e|0,r=p+r|0,r=e>>>0<A>>>0?r+1|0:r,A=q(l,M,T,x),e=A+e|0,r=p+r|0,r=e>>>0<A>>>0?r+1|0:r,A=q(j,C,_0,M0),e=A+e|0,r=p+r|0,r=e>>>0<A>>>0?r+1|0:r,A=q(u,G,t0,v0),B0=A+e|0,e=p+r|0,A=A>>>0>B0>>>0?e+1|0:e,r=i>>26,i=(i&67108863)<<6|$>>>26,e=i+B0|0,A=r+A|0,$=e,r=e>>>0<i>>>0?A+1|0:A,e=e+16777216|0,r=e>>>0<16777216?r+1|0:r,B0=e,i=r,n[_+28>>2]=$-(e&-33554432),e=q(j,C,u0,q0),A=p,K=q(l,M,C0,K),r=K+e|0,e=p+A|0,e=r>>>0<K>>>0?e+1|0:e,B=q(T,x,B,l0),r=B+r|0,A=p+e|0,v=q(v,z,g,A0),e=v+r|0,r=p+(r>>>0<B>>>0?A+1|0:A)|0,r=e>>>0<v>>>0?r+1|0:r,A=q(u,G,o,X),e=A+e|0,r=p+r|0,r=e>>>0<A>>>0?r+1|0:r,A=t>>26,$=e,e=(t&67108863)<<6|o0>>>26,t=$+e|0,r=r+A|0,A=t,e=A>>>0<e>>>0?r+1|0:r,r=A+16777216|0,e=r>>>0<16777216?e+1|0:e,v=r,t=e,n[_+12>>2]=A-(r&-33554432),e=q(T,x,O,J),r=p,A=q(o,X,o,X),e=A+e|0,r=p+r|0,r=e>>>0<A>>>0?r+1|0:r,A=q(m,d,g,A0),e=A+e|0,r=p+r|0,r=e>>>0<A>>>0?r+1|0:r,o=q(l,M,f0,P0),A=o+e|0,e=p+r|0,e=A>>>0<o>>>0?e+1|0:e,o=q(j,C,t0,v0),r=o+A|0,A=p+e|0,A=r>>>0<o>>>0?A+1|0:A,e=u,u=d0,g=u>>31,o=q(e,G,u,g),e=o+r|0,r=p+A|0,r=e>>>0<o>>>0?r+1|0:r,A=e,e=i>>25,i=(i&33554431)<<7|B0>>>25,A=A+i|0,r=e+r|0,r=A>>>0<i>>>0?r+1|0:r,e=A+33554432|0,r=e>>>0<33554432?r+1|0:r,o=e,i=r,n[_+32>>2]=A-(e&-67108864),B=m0-(O0&-33554432)|0,r=t>>25,t=(t&33554431)<<7|v>>>25,e=K0&-67108864,A=t+(L0-e|0)|0,e=r+(F0-((e>>>0>L0>>>0)+N0|0)|0)|0,e=A>>>0<t>>>0?e+1|0:e,t=A,A=A+33554432|0,r=A>>>0<33554432?e+1|0:e,e=((r&67108863)<<6|A>>>26)+B|0,n[_+20>>2]=e,n[_+16>>2]=t-(A&-67108864),e=q(m,d,T,x),A=p,t=q(U,c0,f,I0),r=t+e|0,e=p+A|0,e=r>>>0<t>>>0?e+1|0:e,t=q(O,J,_0,M0),A=t+r|0,r=p+e|0,r=A>>>0<t>>>0?r+1|0:r,t=q(l,M,t0,v0),e=t+A|0,A=p+r|0,A=e>>>0<t>>>0?A+1|0:A,r=e,e=q(j,C,u,g),t=r+e|0,r=p+A|0,e=e>>>0>t>>>0?r+1|0:r,r=i>>26,i=(i&67108863)<<6|o>>>26,A=i+t|0,r=e+r|0,e=A>>>0<i>>>0?r+1|0:r,r=A+16777216|0,e=r>>>0<16777216?e+1|0:e,n[_+36>>2]=A-(r&-33554432),i=s0-(G0&-33554432)|0,A=j0&-67108864,t=y-A|0,l=n0-((A>>>0>y>>>0)+V0|0)|0,e=q((e&33554431)<<7|r>>>25,e>>25,19,0),A=e+t|0,r=p+l|0,e=e>>>0>A>>>0?r+1|0:r,r=A+33554432|0,e=r>>>0<33554432?e+1|0:e,e=((e&67108863)<<6|r>>>26)+i|0,n[_+4>>2]=e,n[_>>2]=A-(r&-67108864)}function Jt(_,e,r,A,t){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0;var i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0;if(i=s[t|0]|s[t+1|0]<<8|(s[t+2|0]<<16|s[t+3|0]<<24),C=i^1886610805,o=s[t+4|0]|s[t+5|0]<<8|(s[t+6|0]<<16|s[t+7|0]<<24),m=o^1936682341,i=i^1852142177,y=o^1819895653,g=r,X=r&7,o=s[t+8|0]|s[t+9|0]<<8|(s[t+10|0]<<16|s[t+11|0]<<24),G=o^1852075907,r=s[t+12|0]|s[t+13|0]<<8|(s[t+14|0]<<16|s[t+15|0]<<24),M=r^1685025377,u=o^2037671283,o=r^1952801890,r=g&-8,r){for(f=e+r|0;d=s[e+4|0]|s[e+5|0]<<8|(s[e+6|0]<<16|s[e+7|0]<<24),T=o^d,r=T+y|0,l=s[e|0]|s[e+1|0]<<8|(s[e+2|0]<<16|s[e+3|0]<<24),A=u^l,t=i+A|0,u=t,r=t>>>0<A>>>0?r+1|0:r,j=r,r=m+M|0,y=C+G|0,r=y>>>0<C>>>0?r+1|0:r,i=D(G,M,13)^y,B=u+i|0,o=r,t=r^p,r=j+t|0,r=i>>>0>B>>>0?r+1|0:r,i=D(i,t,17)^B,v=r,t=r^p,M=D(i,t,13),m=p,r=D(A,T,16),A=j^p,T=r^u,o=D(y,o,32),y=T+o|0,r=p+A|0,o=o>>>0>y>>>0?r+1|0:r,r=o+t|0,u=i+y|0,r=u>>>0<y>>>0?r+1|0:r,i=u^M,j=r,t=r^m,M=D(i,t,17),m=p,r=D(T,A,21),A=o^p,T=r^y,o=D(B,v,32),y=T+o|0,r=p+A|0,o=o>>>0>y>>>0?r+1|0:r,r=o+t|0,i=i+y|0,r=i>>>0<y>>>0?r+1|0:r,G=i^M,t=r,M=r^m,r=D(T,A,16),o=o^p,B=o,r=r^y,v=D(r,o,21),y=p,o=D(u,j,32),j=o+r|0,r=p+B|0,u=v^j,r=o>>>0>j>>>0?r+1|0:r,o=r^y,i=D(i,t,32),y=p,C=l^j,m=r^d,e=e+8|0,(f|0)!=(e|0););e=f}B=0,A=g<<24;r:switch(X-1|0){case 6:A=A|s[e+6|0]<<16;case 5:A=A|s[e+5|0]<<8;case 4:A=A|s[e+4|0];case 3:t=s[e+3|0],r=0,B=B|t<<24,A=r|A;case 2:t=s[e+2|0],r=0,B=B|t<<16,A=r|A;case 1:t=s[e+1|0],r=0,B=B|t<<8,A=r|A;case 0:B=s[e|0]|B;break;default:break r}return v=A,e=A^o,A=e,t=B^u,r=D(t,e,16),e=p,A=A+y|0,u=t+i|0,A=u>>>0<i>>>0?A+1|0:A,t=r^u,j=A,A=A^e,l=D(t,A,21),o=p,r=m+M|0,i=C+G|0,r=i>>>0<C>>>0?r+1|0:r,e=r,y=t,t=D(i,r,32),y=y+t|0,r=p+A|0,r=t>>>0>y>>>0?r+1|0:r,t=y^l,A=o,o=r,A=A^r,m=D(t,A,16),g=p,r=u,f=D(G,M,13)^i,u=f,i=r+u|0,l=p^e,r=l+j|0,j=t,e=i,r=e>>>0<u>>>0?r+1|0:r,t=D(e,r,32),u=j+t|0,A=p+A|0,i=t>>>0>u>>>0?A+1|0:A,t=i^g,T=t,g=u^m,j=g,l=D(f,l,17)^e,e=l,A=e+y|0,y=p^r,r=y+o|0,r=e>>>0>A>>>0?r+1|0:r,e=r,o=D(A,r,32),j=o+j|0,r=p+t|0,B=B^j,o=o>>>0>j>>>0?r+1|0:r,v=o^v,r=D(l,y,13),e=e^p,y=e,t=r^A,r=D(t,e,17),e=p,A=i+y|0,i=t+u|0,A=i>>>0<u>>>0?A+1|0:A,t=r^i,u=t+B|0,e=e^A,r=e+v|0,r=t>>>0>u>>>0?r+1|0:r,t=D(t,e,13)^u,y=r,e=r^p,f=D(t,e,17),B=p,v=D(g,T,21),g=o^p,l=v^j,A=D(i,A,32)^238,i=l+A|0,r=p+g|0,A=A>>>0>i>>>0?r+1|0:r,r=A+e|0,j=t+i|0,r=j>>>0<i>>>0?r+1|0:r,t=j^f,o=r,e=r^B,B=D(t,e,13),v=p,r=D(l,g,16),f=A^p,l=r^i,r=D(u,y,32),i=l+r|0,A=p+f|0,A=r>>>0>i>>>0?A+1|0:A,r=A+e|0,u=t+i|0,r=u>>>0<i>>>0?r+1|0:r,t=B^u,y=r,e=r^v,B=D(t,e,17),v=p,r=D(l,f,21),f=A^p,l=r^i,A=D(j,o,32),i=l+A|0,r=p+f|0,A=A>>>0>i>>>0?r+1|0:r,r=A+e|0,j=t+i|0,r=j>>>0<i>>>0?r+1|0:r,t=B^j,o=r,e=r^v,B=D(t,e,13),v=p,r=D(l,f,16),f=A^p,l=r^i,A=D(u,y,32),i=l+A|0,r=p+f|0,A=A>>>0>i>>>0?r+1|0:r,r=A+e|0,u=t+i|0,r=u>>>0<i>>>0?r+1|0:r,t=B^u,y=r,e=r^v,B=D(t,e,17),v=p,r=D(l,f,21),f=A^p,l=r^i,A=D(j,o,32),i=l+A|0,r=p+f|0,r=A>>>0>i>>>0?r+1|0:r,A=r+e|0,j=t+i|0,A=j>>>0<i>>>0?A+1|0:A,t=B^j,o=A,e=A^v,B=D(t,e,13),v=p,A=D(l,f,16),f=r^p,l=A^i,A=D(u,y,32),i=l+A|0,r=p+f|0,A=A>>>0>i>>>0?r+1|0:r,r=A+e|0,u=t+i|0,r=u>>>0<i>>>0?r+1|0:r,t=B^u,y=r,e=r^v,B=D(t,e,17),v=p,r=D(l,f,21),f=A^p,l=r^i,r=D(j,o,32),o=l+r|0,A=p+f|0,i=r>>>0>o>>>0?A+1|0:A,r=i+e|0,t=t+o|0,e=t>>>0<o>>>0?r+1|0:r,A=e^v,j=A,B=t^B,r=D(l,f,16),l=i^p,o=r^o,i=D(u,y,32),y=o+i|0,r=p+l|0,e=D(t,e,32),u=p,r=i>>>0>y>>>0?r+1|0:r,t=r,i=_,o=D(o,l,21)^y,v=o^(e^(y^B)),h[i|0]=v,h[i+1|0]=v>>>8,h[i+2|0]=v>>>16,h[i+3|0]=v>>>24,l=u^(r^A),A=r^p,r=l^A,h[i+4|0]=r,h[i+5|0]=r>>>8,h[i+6|0]=r>>>16,h[i+7|0]=r>>>24,r=A+u|0,i=e,e=e+o|0,r=i>>>0>e>>>0?r+1|0:r,v=e,i=D(o,A,16)^e,o=r,A=r^p,l=A,e=t,t=j,r=e+t|0,e=y,B=B^221,y=B,e=e+y|0,r=e>>>0<y>>>0?r+1|0:r,y=D(e,r,32),u=y+i|0,A=p+A|0,i=D(i,l,21)^u,y=y>>>0>u>>>0?A+1|0:A,A=y^p,g=D(i,A,16),l=p,t=D(B,t,13),f=r^p,r=o+f|0,B=e^t,t=v+B|0,r=t>>>0<v>>>0?r+1|0:r,e=r,o=i,i=D(t,r,32),j=o+i|0,r=p+A|0,o=i>>>0>j>>>0?r+1|0:r,r=o^l,l=r,g=j^g,v=D(g,r,21),i=p,r=D(B,f,17),f=e^p,A=y+f|0,B=r^t,t=u+B|0,A=t>>>0<u>>>0?A+1|0:A,e=D(t,A,32),r=l+p|0,y=i,e=e+g|0,i=e>>>0<g>>>0?r+1|0:r,r=y^i,l=r,y=e,g=v^e,v=D(g,r,16),u=p,e=D(B,f,13),f=A^p,r=o+f|0,B=e^t,t=j+B|0,r=t>>>0<j>>>0?r+1|0:r,A=r,e=D(t,r,32),r=l+p|0,e=e+g|0,o=e>>>0<g>>>0?r+1|0:r,r=o^u,l=r,j=e,g=v^e,v=D(g,r,21),u=p,e=D(B,f,17),f=A^p,r=i+f|0,B=e^t,t=y+B|0,r=t>>>0<y>>>0?r+1|0:r,A=r,e=D(t,r,32),r=l+p|0,e=e+g|0,i=e>>>0<g>>>0?r+1|0:r,r=i^u,l=r,y=e,g=v^e,v=D(g,r,16),u=p,e=D(B,f,13),B=A^p,r=o+B|0,o=e^t,t=j+o|0,r=t>>>0<j>>>0?r+1|0:r,e=D(t,r,32),A=l+p|0,e=e+g|0,A=e>>>0<g>>>0?A+1|0:A,v=D(e^v,A^u,21),u=p,t=D(o,B,17)^t,r=r^p,j=D(t,r,13),r=r+i|0,t=t+y|0,r=p^(t>>>0<y>>>0?r+1|0:r),o=t^j,i=D(o,r,17)^v,t=p^u,r=r+A|0,A=e,e=e+o|0,r=A>>>0>e>>>0?r+1|0:r,e=D(e,r,32)^i^e,h[_+8|0]=e,h[_+9|0]=e>>>8,h[_+10|0]=e>>>16,h[_+11|0]=e>>>24,e=r^(p^t),h[_+12|0]=e,h[_+13|0]=e>>>8,h[_+14|0]=e>>>16,h[_+15|0]=e>>>24,0}function g4(_,e,r,A,t){var i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0,x=0;for(i=F-288|0,F=i,u=n[t+44>>2]^A>>>29,B=n[t+40>>2]^A<<3,l=n[t+36>>2]^r>>>29,A=n[t+32>>2]^r<<3,o=t- -64|0;r=n[t+124>>2],n[i+280>>2]=n[t+120>>2],n[i+284>>2]=r,r=n[t+116>>2],n[i+272>>2]=n[t+112>>2],n[i+276>>2]=r,r=n[t+100>>2],n[i+240>>2]=n[t+96>>2],n[i+244>>2]=r,r=n[t+108>>2],n[i+248>>2]=n[t+104>>2],n[i+252>>2]=r,r=n[t+116>>2],n[i+224>>2]=n[t+112>>2],n[i+228>>2]=r,r=n[t+124>>2],n[i+232>>2]=n[t+120>>2],n[i+236>>2]=r,y=i+256|0,S0(y,i+240|0,i+224|0),r=n[i+268>>2],n[t+120>>2]=n[i+264>>2],n[t+124>>2]=r,r=n[i+260>>2],n[t+112>>2]=n[i+256>>2],n[t+116>>2]=r,r=n[t+84>>2],n[i+208>>2]=n[t+80>>2],n[i+212>>2]=r,r=n[t+92>>2],n[i+216>>2]=n[t+88>>2],n[i+220>>2]=r,r=n[t+100>>2],n[i+192>>2]=n[t+96>>2],n[i+196>>2]=r,r=n[t+108>>2],n[i+200>>2]=n[t+104>>2],n[i+204>>2]=r,S0(y,i+208|0,i+192|0),r=n[i+268>>2],n[t+104>>2]=n[i+264>>2],n[t+108>>2]=r,r=n[i+260>>2],n[t+96>>2]=n[i+256>>2],n[t+100>>2]=r,r=n[o+4>>2],n[i+176>>2]=n[o>>2],n[i+180>>2]=r,r=n[o+12>>2],n[i+184>>2]=n[o+8>>2],n[i+188>>2]=r,r=n[t+84>>2],n[i+160>>2]=n[t+80>>2],n[i+164>>2]=r,r=n[t+92>>2],n[i+168>>2]=n[t+88>>2],n[i+172>>2]=r,S0(y,i+176|0,i+160|0),r=n[i+268>>2],n[t+88>>2]=n[i+264>>2],n[t+92>>2]=r,r=n[i+260>>2],n[t+80>>2]=n[i+256>>2],n[t+84>>2]=r,r=n[t+52>>2],n[i+144>>2]=n[t+48>>2],n[i+148>>2]=r,r=n[t+60>>2],n[i+152>>2]=n[t+56>>2],n[i+156>>2]=r,r=n[o+4>>2],n[i+128>>2]=n[o>>2],n[i+132>>2]=r,r=n[o+12>>2],n[i+136>>2]=n[o+8>>2],n[i+140>>2]=r,S0(y,i+144|0,i+128|0),r=n[i+268>>2],n[o+8>>2]=n[i+264>>2],n[o+12>>2]=r,r=n[i+260>>2],n[o>>2]=n[i+256>>2],n[o+4>>2]=r,r=n[t+36>>2],n[i+112>>2]=n[t+32>>2],n[i+116>>2]=r,r=n[t+44>>2],n[i+120>>2]=n[t+40>>2],n[i+124>>2]=r,r=n[t+52>>2],n[i+96>>2]=n[t+48>>2],n[i+100>>2]=r,r=n[t+60>>2],n[i+104>>2]=n[t+56>>2],n[i+108>>2]=r,S0(y,i+112|0,i+96|0),r=n[i+268>>2],n[t+56>>2]=n[i+264>>2],n[t+60>>2]=r,r=n[i+260>>2],n[t+48>>2]=n[i+256>>2],n[t+52>>2]=r,r=n[t+20>>2],n[i+80>>2]=n[t+16>>2],n[i+84>>2]=r,r=n[t+28>>2],n[i+88>>2]=n[t+24>>2],n[i+92>>2]=r,r=n[t+36>>2],n[i+64>>2]=n[t+32>>2],n[i+68>>2]=r,r=n[t+44>>2],n[i+72>>2]=n[t+40>>2],n[i+76>>2]=r,S0(y,i+80|0,i- -64|0),r=n[i+268>>2],n[t+40>>2]=n[i+264>>2],n[t+44>>2]=r,r=n[i+260>>2],n[t+32>>2]=n[i+256>>2],n[t+36>>2]=r,r=n[t+4>>2],n[i+48>>2]=n[t>>2],n[i+52>>2]=r,r=n[t+12>>2],n[i+56>>2]=n[t+8>>2],n[i+60>>2]=r,r=n[t+20>>2],n[i+32>>2]=n[t+16>>2],n[i+36>>2]=r,r=n[t+28>>2],n[i+40>>2]=n[t+24>>2],n[i+44>>2]=r,S0(y,i+48|0,i+32|0),r=n[i+268>>2],n[t+24>>2]=n[i+264>>2],n[t+28>>2]=r,r=n[i+260>>2],n[t+16>>2]=n[i+256>>2],n[t+20>>2]=r,r=n[i+276>>2],n[i+16>>2]=n[i+272>>2],n[i+20>>2]=r,r=n[i+284>>2],n[i+24>>2]=n[i+280>>2],n[i+28>>2]=r,r=n[t+4>>2],n[i>>2]=n[t>>2],n[i+4>>2]=r,r=n[t+12>>2],n[i+8>>2]=n[t+8>>2],n[i+12>>2]=r,S0(y,i+16|0,i),r=n[i+268>>2],n[t+8>>2]=n[i+264>>2],n[t+12>>2]=r,r=n[i+260>>2],n[t>>2]=n[i+256>>2],n[t+4>>2]=r,f=u^n[t+12>>2],n[t+12>>2]=f,g=B^n[t+8>>2],n[t+8>>2]=g,T=l^n[t+4>>2],n[t+4>>2]=T,m=A^n[t>>2],n[t>>2]=m,G=A^n[o>>2],n[o>>2]=G,d=l^n[t+68>>2],n[t+68>>2]=d,X=B^n[t+72>>2],n[t+72>>2]=X,K=u^n[t+76>>2],n[t+76>>2]=K,j=j+1|0,(j|0)!=7;);r:{A:{n:{if(r=e-16|0,r){if((r|0)==16)break n;break A}O=n[t+16>>2],U=n[t+48>>2],x=n[t+32>>2],M=n[t+96>>2],C=n[t+80>>2],v=n[t+20>>2],o=n[t+52>>2],y=n[t+36>>2],u=n[t+100>>2],B=n[t+84>>2],l=n[t+24>>2],j=n[t+56>>2],A=n[t+40>>2],r=n[t+104>>2],e=n[t+88>>2],t=f^(n[t+28>>2]^(n[t+60>>2]^(n[t+44>>2]^(n[t+92>>2]^n[t+108>>2])))^K),h[_+12|0]=t,h[_+13|0]=t>>>8,h[_+14|0]=t>>>16,h[_+15|0]=t>>>24,e=g^(e^r^A^j^l^X),h[_+8|0]=e,h[_+9|0]=e>>>8,h[_+10|0]=e>>>16,h[_+11|0]=e>>>24,e=T^(d^(v^(o^(u^B^y)))),h[_+4|0]=e,h[_+5|0]=e>>>8,h[_+6|0]=e>>>16,h[_+7|0]=e>>>24,e=m^(G^(O^(U^(x^(M^C))))),h[_|0]=e,h[_+1|0]=e>>>8,h[_+2|0]=e>>>16,h[_+3|0]=e>>>24;break r}o=n[t+16>>2],y=n[t+48>>2],u=n[t+32>>2],B=n[t+20>>2],l=n[t+52>>2],j=n[t+36>>2],A=n[t+24>>2],r=n[t+56>>2],e=n[t+40>>2],v=f^(n[t+28>>2]^(n[t+60>>2]^n[t+44>>2])),h[_+12|0]=v,h[_+13|0]=v>>>8,h[_+14|0]=v>>>16,h[_+15|0]=v>>>24,e=g^(A^(e^r)),h[_+8|0]=e,h[_+9|0]=e>>>8,h[_+10|0]=e>>>16,h[_+11|0]=e>>>24,e=T^(B^(l^j)),h[_+4|0]=e,h[_+5|0]=e>>>8,h[_+6|0]=e>>>16,h[_+7|0]=e>>>24,e=m^(o^(y^u)),h[_|0]=e,h[_+1|0]=e>>>8,h[_+2|0]=e>>>16,h[_+3|0]=e>>>24,M=n[t+80>>2],C=n[t- -64>>2],v=n[t+112>>2],o=n[t+96>>2],y=n[t+84>>2],u=n[t+68>>2],B=n[t+116>>2],l=n[t+100>>2],j=n[t+88>>2],A=n[t+72>>2],r=n[t+120>>2],e=n[t+104>>2],t=n[t+92>>2]^(n[t+76>>2]^(n[t+124>>2]^n[t+108>>2])),h[_+28|0]=t,h[_+29|0]=t>>>8,h[_+30|0]=t>>>16,h[_+31|0]=t>>>24,e=j^(A^(e^r)),h[_+24|0]=e,h[_+25|0]=e>>>8,h[_+26|0]=e>>>16,h[_+27|0]=e>>>24,e=y^(u^(B^l)),h[_+20|0]=e,h[_+21|0]=e>>>8,h[_+22|0]=e>>>16,h[_+23|0]=e>>>24,e=M^(C^(o^v)),h[_+16|0]=e,h[_+17|0]=e>>>8,h[_+18|0]=e>>>16,h[_+19|0]=e>>>24;break r}if(!e)break r;B2(_,0,e)}F=i+288|0}function Et(_,e,r,A,t,i,o,y,u){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0,i=i|0,o=o|0,y=y|0,u=u|0;var B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0,x=0,z=0,$=0,J=0,A0=0,n0=0,t0=0,_0=0,s0=0,o0=0,B0=0,u0=0,l0=0,j0=0,v0=0,f0=0,c0=0,q0=0,P0=0;if(l=F,K=l,l=l-224&-32,F=l,T4(u,y,l+96|0),y=0,o>>>0>63)for(u=64;f4(i+y|0,l+96|0),y=u,u=y- -64|0,u>>>0<=o>>>0;);if(u=y|32,u>>>0<=o>>>0)for(;V6(i+y|0,l+96|0),y=u,u=y+32|0,u>>>0<=o>>>0;);u=o&31,u&&(j=32-u|0,j&&B2(u|l- -64,0,j),u&&b0(l- -64|0,i+y|0,u),V6(l- -64|0,l+96|0));r:{if(!_){if(i=32,y=0,r>>>0<32)break r;for(;q4(l+32|0,e+y|0,l+96|0),y=i,i=i+32|0,i>>>0<=r>>>0;);break r}if(i=32,y=0,r>>>0<32)break r;for(;q4(_+y|0,e+y|0,l+96|0),y=i,i=i+32|0,i>>>0<=r>>>0;);}u=r&31,u&&(C=_?_+y|0:l+32|0,v=e+y|0,i=l+96|0,e=F-320|0,F=e,y=u+(e+256|0)|0,j=32-u|0,B=!j,B||B2(y,0,j),G=!u,G||b0(e+256|0,v,u),O=n[i+16>>2],U=n[i+48>>2],x=n[i+20>>2],z=n[i+52>>2],$=n[i+24>>2],J=n[i+56>>2],A0=n[i+28>>2],n0=n[i+60>>2],v=n[i+32>>2],t0=n[i+80>>2],_0=n[i+112>>2],f=n[i+96>>2],g=n[i+36>>2],s0=n[i+84>>2],o0=n[i+116>>2],T=n[i+100>>2],m=n[i+40>>2],B0=n[i+88>>2],u0=n[i+120>>2],M=n[i+104>>2],l0=n[e+256>>2],j0=n[e+260>>2],v0=n[e+264>>2],f0=n[e+268>>2],c0=n[e+272>>2],q0=n[e+276>>2],P0=n[e+280>>2],d=n[i+44>>2],X=n[i+108>>2],n[e+284>>2]=d^(X&n[i+124>>2]^(n[i+92>>2]^n[e+284>>2])),n[e+280>>2]=M&u0^(B0^P0)^m,n[e+276>>2]=T&o0^(s0^q0)^g,n[e+272>>2]=f&_0^(t0^c0)^v,n[e+268>>2]=X^(n0&d^(A0^f0)),n[e+264>>2]=m&J^($^v0)^M,n[e+260>>2]=g&z^(x^j0)^T,n[e+256>>2]=v&U^(O^l0)^f,B||B2(y,0,j),G||b0(C,e+256|0,u),j=n[e+284>>2],v=n[e+280>>2],f=n[e+276>>2],g=n[e+272>>2],T=n[e+256>>2],m=n[e+260>>2],M=n[e+264>>2],C=n[e+268>>2],y=n[i+124>>2],n[e+312>>2]=n[i+120>>2],n[e+316>>2]=y,y=n[i+116>>2],n[e+304>>2]=n[i+112>>2],n[e+308>>2]=y,y=n[i+100>>2],n[e+240>>2]=n[i+96>>2],n[e+244>>2]=y,y=n[i+108>>2],n[e+248>>2]=n[i+104>>2],n[e+252>>2]=y,y=n[i+116>>2],n[e+224>>2]=n[i+112>>2],n[e+228>>2]=y,y=n[i+124>>2],n[e+232>>2]=n[i+120>>2],n[e+236>>2]=y,y=e+288|0,S0(y,e+240|0,e+224|0),u=n[e+300>>2],n[i+120>>2]=n[e+296>>2],n[i+124>>2]=u,u=n[e+292>>2],n[i+112>>2]=n[e+288>>2],n[i+116>>2]=u,u=n[i+84>>2],n[e+208>>2]=n[i+80>>2],n[e+212>>2]=u,u=n[i+92>>2],n[e+216>>2]=n[i+88>>2],n[e+220>>2]=u,u=n[i+100>>2],n[e+192>>2]=n[i+96>>2],n[e+196>>2]=u,u=n[i+108>>2],n[e+200>>2]=n[i+104>>2],n[e+204>>2]=u,S0(y,e+208|0,e+192|0),u=n[e+300>>2],n[i+104>>2]=n[e+296>>2],n[i+108>>2]=u,u=n[e+292>>2],n[i+96>>2]=n[e+288>>2],n[i+100>>2]=u,u=i- -64|0,B=n[u+4>>2],n[e+176>>2]=n[u>>2],n[e+180>>2]=B,B=n[i+76>>2],n[e+184>>2]=n[i+72>>2],n[e+188>>2]=B,B=n[i+84>>2],n[e+160>>2]=n[i+80>>2],n[e+164>>2]=B,B=n[i+92>>2],n[e+168>>2]=n[i+88>>2],n[e+172>>2]=B,S0(y,e+176|0,e+160|0),B=n[e+300>>2],n[i+88>>2]=n[e+296>>2],n[i+92>>2]=B,B=n[e+292>>2],n[i+80>>2]=n[e+288>>2],n[i+84>>2]=B,B=n[i+52>>2],n[e+144>>2]=n[i+48>>2],n[e+148>>2]=B,B=n[i+60>>2],n[e+152>>2]=n[i+56>>2],n[e+156>>2]=B,B=n[u+4>>2],n[e+128>>2]=n[u>>2],n[e+132>>2]=B,B=n[i+76>>2],n[e+136>>2]=n[i+72>>2],n[e+140>>2]=B,S0(y,e+144|0,e+128|0),B=n[e+300>>2],n[i+72>>2]=n[e+296>>2],n[i+76>>2]=B,B=n[e+292>>2],n[u>>2]=n[e+288>>2],n[u+4>>2]=B,B=n[i+36>>2],n[e+112>>2]=n[i+32>>2],n[e+116>>2]=B,B=n[i+44>>2],n[e+120>>2]=n[i+40>>2],n[e+124>>2]=B,B=n[i+52>>2],n[e+96>>2]=n[i+48>>2],n[e+100>>2]=B,B=n[i+60>>2],n[e+104>>2]=n[i+56>>2],n[e+108>>2]=B,S0(y,e+112|0,e+96|0),B=n[e+300>>2],n[i+56>>2]=n[e+296>>2],n[i+60>>2]=B,B=n[e+292>>2],n[i+48>>2]=n[e+288>>2],n[i+52>>2]=B,B=n[i+20>>2],n[e+80>>2]=n[i+16>>2],n[e+84>>2]=B,B=n[i+28>>2],n[e+88>>2]=n[i+24>>2],n[e+92>>2]=B,B=n[i+36>>2],n[e+64>>2]=n[i+32>>2],n[e+68>>2]=B,B=n[i+44>>2],n[e+72>>2]=n[i+40>>2],n[e+76>>2]=B,S0(y,e+80|0,e- -64|0),B=n[e+300>>2],n[i+40>>2]=n[e+296>>2],n[i+44>>2]=B,B=n[e+292>>2],n[i+32>>2]=n[e+288>>2],n[i+36>>2]=B,B=n[i+4>>2],n[e+48>>2]=n[i>>2],n[e+52>>2]=B,B=n[i+12>>2],n[e+56>>2]=n[i+8>>2],n[e+60>>2]=B,B=n[i+20>>2],n[e+32>>2]=n[i+16>>2],n[e+36>>2]=B,B=n[i+28>>2],n[e+40>>2]=n[i+24>>2],n[e+44>>2]=B,S0(y,e+48|0,e+32|0),B=n[e+300>>2],n[i+24>>2]=n[e+296>>2],n[i+28>>2]=B,B=n[e+292>>2],n[i+16>>2]=n[e+288>>2],n[i+20>>2]=B,B=n[e+308>>2],n[e+16>>2]=n[e+304>>2],n[e+20>>2]=B,B=n[e+316>>2],n[e+24>>2]=n[e+312>>2],n[e+28>>2]=B,B=n[i+4>>2],n[e>>2]=n[i>>2],n[e+4>>2]=B,B=n[i+12>>2],n[e+8>>2]=n[i+8>>2],n[e+12>>2]=B,S0(y,e+16|0,e),y=n[e+300>>2],n[i+8>>2]=n[e+296>>2],n[i+12>>2]=y,y=n[e+292>>2],n[i>>2]=n[e+288>>2],n[i+4>>2]=y,n[i+12>>2]=C^n[i+12>>2],n[i+8>>2]=M^n[i+8>>2],n[i+4>>2]=m^n[i+4>>2],n[i>>2]=T^n[i>>2],n[u>>2]=g^n[u>>2],n[i+68>>2]=f^n[i+68>>2],n[i+72>>2]=v^n[i+72>>2],n[i+76>>2]=j^n[i+76>>2],F=e+320|0),g4(l,t,o,r,l+96|0),y=-1;r:{A:{if(e=t-16|0,e){if((e|0)==16)break A;break r}y=wr(l,A);break r}y=Jr(l,A)}return!r|(!_|!y)||B2(_,0,r),F=K,y|0}function c4(_,e){var r=0,A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0;r=F-416|0,F=r,o=s[_+16|0]|s[_+17|0]<<8|(s[_+18|0]<<16|s[_+19|0]<<24),y=s[_+20|0]|s[_+21|0]<<8|(s[_+22|0]<<16|s[_+23|0]<<24),u=s[_+24|0]|s[_+25|0]<<8|(s[_+26|0]<<16|s[_+27|0]<<24),B=s[_+28|0]|s[_+29|0]<<8|(s[_+30|0]<<16|s[_+31|0]<<24),i=s[_+4|0]|s[_+5|0]<<8|(s[_+6|0]<<16|s[_+7|0]<<24),l=s[_+8|0]|s[_+9|0]<<8|(s[_+10|0]<<16|s[_+11|0]<<24),j=s[_+12|0]|s[_+13|0]<<8|(s[_+14|0]<<16|s[_+15|0]<<24),v=s[_|0]|s[_+1|0]<<8|(s[_+2|0]<<16|s[_+3|0]<<24),_=n[e+92>>2],n[r+408>>2]=n[e+88>>2],n[r+412>>2]=_,_=n[e+84>>2],n[r+400>>2]=n[e+80>>2],n[r+404>>2]=_,t=e- -64|0,_=t,A=n[_+4>>2],n[r+368>>2]=n[_>>2],n[r+372>>2]=A,_=n[e+76>>2],n[r+376>>2]=n[e+72>>2],n[r+380>>2]=_,_=n[e+84>>2],n[r+352>>2]=n[e+80>>2],n[r+356>>2]=_,_=n[e+92>>2],n[r+360>>2]=n[e+88>>2],n[r+364>>2]=_,_=r+384|0,S0(_,r+368|0,r+352|0),A=n[r+396>>2],n[e+88>>2]=n[r+392>>2],n[e+92>>2]=A,A=n[r+388>>2],n[e+80>>2]=n[r+384>>2],n[e+84>>2]=A,A=n[e+52>>2],n[r+336>>2]=n[e+48>>2],n[r+340>>2]=A,A=n[e+60>>2],n[r+344>>2]=n[e+56>>2],n[r+348>>2]=A,A=n[t+4>>2],n[r+320>>2]=n[t>>2],n[r+324>>2]=A,A=n[e+76>>2],n[r+328>>2]=n[e+72>>2],n[r+332>>2]=A,S0(_,r+336|0,r+320|0),A=n[r+396>>2],n[e+72>>2]=n[r+392>>2],n[e+76>>2]=A,A=n[r+388>>2],n[t>>2]=n[r+384>>2],n[t+4>>2]=A,A=n[e+36>>2],n[r+304>>2]=n[e+32>>2],n[r+308>>2]=A,A=n[e+44>>2],n[r+312>>2]=n[e+40>>2],n[r+316>>2]=A,A=n[e+52>>2],n[r+288>>2]=n[e+48>>2],n[r+292>>2]=A,A=n[e+60>>2],n[r+296>>2]=n[e+56>>2],n[r+300>>2]=A,S0(_,r+304|0,r+288|0),A=n[r+396>>2],n[e+56>>2]=n[r+392>>2],n[e+60>>2]=A,A=n[r+388>>2],n[e+48>>2]=n[r+384>>2],n[e+52>>2]=A,A=n[e+20>>2],n[r+272>>2]=n[e+16>>2],n[r+276>>2]=A,A=n[e+28>>2],n[r+280>>2]=n[e+24>>2],n[r+284>>2]=A,A=n[e+36>>2],n[r+256>>2]=n[e+32>>2],n[r+260>>2]=A,A=n[e+44>>2],n[r+264>>2]=n[e+40>>2],n[r+268>>2]=A,S0(_,r+272|0,r+256|0),A=n[r+396>>2],n[e+40>>2]=n[r+392>>2],n[e+44>>2]=A,A=n[r+388>>2],n[e+32>>2]=n[r+384>>2],n[e+36>>2]=A,A=n[e+4>>2],n[r+240>>2]=n[e>>2],n[r+244>>2]=A,A=n[e+12>>2],n[r+248>>2]=n[e+8>>2],n[r+252>>2]=A,A=n[e+20>>2],n[r+224>>2]=n[e+16>>2],n[r+228>>2]=A,A=n[e+28>>2],n[r+232>>2]=n[e+24>>2],n[r+236>>2]=A,S0(_,r+240|0,r+224|0),A=n[r+396>>2],n[e+24>>2]=n[r+392>>2],n[e+28>>2]=A,A=n[r+388>>2],n[e+16>>2]=n[r+384>>2],n[e+20>>2]=A,A=n[r+404>>2],n[r+208>>2]=n[r+400>>2],n[r+212>>2]=A,A=n[r+412>>2],n[r+216>>2]=n[r+408>>2],n[r+220>>2]=A,A=n[e+4>>2],n[r+192>>2]=n[e>>2],n[r+196>>2]=A,A=n[e+12>>2],n[r+200>>2]=n[e+8>>2],n[r+204>>2]=A,S0(_,r+208|0,r+192|0),A=n[r+384>>2],f=n[r+388>>2],g=n[r+392>>2],n[e+12>>2]=n[r+396>>2]^j,n[e+8>>2]=l^g,n[e+4>>2]=i^f,n[e>>2]=A^v,i=n[e+92>>2],n[r+408>>2]=n[e+88>>2],n[r+412>>2]=i,i=n[e+84>>2],n[r+400>>2]=n[e+80>>2],n[r+404>>2]=i,i=n[t+4>>2],n[r+176>>2]=n[t>>2],n[r+180>>2]=i,i=n[e+76>>2],n[r+184>>2]=n[e+72>>2],n[r+188>>2]=i,i=n[e+84>>2],n[r+160>>2]=n[e+80>>2],n[r+164>>2]=i,i=n[e+92>>2],n[r+168>>2]=n[e+88>>2],n[r+172>>2]=i,S0(_,r+176|0,r+160|0),i=n[r+396>>2],n[e+88>>2]=n[r+392>>2],n[e+92>>2]=i,i=n[r+388>>2],n[e+80>>2]=n[r+384>>2],n[e+84>>2]=i,i=n[e+52>>2],n[r+144>>2]=n[e+48>>2],n[r+148>>2]=i,i=n[e+60>>2],n[r+152>>2]=n[e+56>>2],n[r+156>>2]=i,i=n[t+4>>2],n[r+128>>2]=n[t>>2],n[r+132>>2]=i,i=n[e+76>>2],n[r+136>>2]=n[e+72>>2],n[r+140>>2]=i,S0(_,r+144|0,r+128|0),i=n[r+396>>2],n[e+72>>2]=n[r+392>>2],n[e+76>>2]=i,i=n[r+388>>2],n[t>>2]=n[r+384>>2],n[t+4>>2]=i,t=n[e+36>>2],n[r+112>>2]=n[e+32>>2],n[r+116>>2]=t,t=n[e+44>>2],n[r+120>>2]=n[e+40>>2],n[r+124>>2]=t,t=n[e+52>>2],n[r+96>>2]=n[e+48>>2],n[r+100>>2]=t,t=n[e+60>>2],n[r+104>>2]=n[e+56>>2],n[r+108>>2]=t,S0(_,r+112|0,r+96|0),t=n[r+396>>2],n[e+56>>2]=n[r+392>>2],n[e+60>>2]=t,t=n[r+388>>2],n[e+48>>2]=n[r+384>>2],n[e+52>>2]=t,t=n[e+20>>2],n[r+80>>2]=n[e+16>>2],n[r+84>>2]=t,t=n[e+28>>2],n[r+88>>2]=n[e+24>>2],n[r+92>>2]=t,t=n[e+36>>2],n[r+64>>2]=n[e+32>>2],n[r+68>>2]=t,t=n[e+44>>2],n[r+72>>2]=n[e+40>>2],n[r+76>>2]=t,S0(_,r+80|0,r- -64|0),t=n[r+396>>2],n[e+40>>2]=n[r+392>>2],n[e+44>>2]=t,t=n[r+388>>2],n[e+32>>2]=n[r+384>>2],n[e+36>>2]=t,t=n[e+4>>2],n[r+48>>2]=n[e>>2],n[r+52>>2]=t,t=n[e+12>>2],n[r+56>>2]=n[e+8>>2],n[r+60>>2]=t,t=n[e+20>>2],n[r+32>>2]=n[e+16>>2],n[r+36>>2]=t,t=n[e+28>>2],n[r+40>>2]=n[e+24>>2],n[r+44>>2]=t,S0(_,r+48|0,r+32|0),t=n[r+396>>2],n[e+24>>2]=n[r+392>>2],n[e+28>>2]=t,t=n[r+388>>2],n[e+16>>2]=n[r+384>>2],n[e+20>>2]=t,t=n[r+404>>2],n[r+16>>2]=n[r+400>>2],n[r+20>>2]=t,t=n[r+412>>2],n[r+24>>2]=n[r+408>>2],n[r+28>>2]=t,t=n[e+4>>2],n[r>>2]=n[e>>2],n[r+4>>2]=t,t=n[e+12>>2],n[r+8>>2]=n[e+8>>2],n[r+12>>2]=t,S0(_,r+16|0,r),_=n[r+384>>2],t=n[r+388>>2],i=n[r+392>>2],n[e+12>>2]=n[r+396>>2]^B,n[e+8>>2]=i^u,n[e+4>>2]=t^y,n[e>>2]=_^o,F=r+416|0}function q4(_,e,r){var A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0,x=0,z=0,$=0,J=0,A0=0,n0=0,t0=0,_0=0,s0=0;A=F-288|0,F=A,M=n[r+16>>2],C=n[r+48>>2],G=n[r+20>>2],d=s[e+4|0]|s[e+5|0]<<8|(s[e+6|0]<<16|s[e+7|0]<<24),X=n[r+52>>2],K=n[r+24>>2],O=s[e+8|0]|s[e+9|0]<<8|(s[e+10|0]<<16|s[e+11|0]<<24),U=n[r+56>>2],u=n[r+28>>2],x=s[e+12|0]|s[e+13|0]<<8|(s[e+14|0]<<16|s[e+15|0]<<24),z=n[r+60>>2],i=n[r+32>>2],B=n[r+80>>2],$=s[e+16|0]|s[e+17|0]<<8|(s[e+18|0]<<16|s[e+19|0]<<24),J=n[r+112>>2],t=n[r+96>>2],o=n[r+36>>2],l=n[r+84>>2],A0=s[e+20|0]|s[e+21|0]<<8|(s[e+22|0]<<16|s[e+23|0]<<24),n0=n[r+116>>2],f=n[r+100>>2],y=n[r+40>>2],j=n[r+88>>2],t0=s[e+24|0]|s[e+25|0]<<8|(s[e+26|0]<<16|s[e+27|0]<<24),_0=n[r+120>>2],g=n[r+104>>2],s0=s[e|0]|s[e+1|0]<<8|(s[e+2|0]<<16|s[e+3|0]<<24),T=n[r+44>>2],m=n[r+108>>2],v=T^(m&n[r+124>>2]^(n[r+92>>2]^(s[e+28|0]|s[e+29|0]<<8|(s[e+30|0]<<16|s[e+31|0]<<24)))),h[_+28|0]=v,h[_+29|0]=v>>>8,h[_+30|0]=v>>>16,h[_+31|0]=v>>>24,j=y^(g&_0^(j^t0)),h[_+24|0]=j,h[_+25|0]=j>>>8,h[_+26|0]=j>>>16,h[_+27|0]=j>>>24,l=o^(f&n0^(l^A0)),h[_+20|0]=l,h[_+21|0]=l>>>8,h[_+22|0]=l>>>16,h[_+23|0]=l>>>24,B=i^(t&J^(B^$)),h[_+16|0]=B,h[_+17|0]=B>>>8,h[_+18|0]=B>>>16,h[_+19|0]=B>>>24,u=z&T^(u^x)^m,h[_+12|0]=u,h[_+13|0]=u>>>8,h[_+14|0]=u>>>16,h[_+15|0]=u>>>24,y=y&U^(K^O)^g,h[_+8|0]=y,h[_+9|0]=y>>>8,h[_+10|0]=y>>>16,h[_+11|0]=y>>>24,o=o&X^(G^d)^f,h[_+4|0]=o,h[_+5|0]=o>>>8,h[_+6|0]=o>>>16,h[_+7|0]=o>>>24,i=t^(i&C^(M^s0)),h[_|0]=i,h[_+1|0]=i>>>8,h[_+2|0]=i>>>16,h[_+3|0]=i>>>24,_=n[r+124>>2],n[A+280>>2]=n[r+120>>2],n[A+284>>2]=_,_=n[r+116>>2],n[A+272>>2]=n[r+112>>2],n[A+276>>2]=_,_=n[r+100>>2],n[A+240>>2]=n[r+96>>2],n[A+244>>2]=_,_=n[r+108>>2],n[A+248>>2]=n[r+104>>2],n[A+252>>2]=_,_=n[r+116>>2],n[A+224>>2]=n[r+112>>2],n[A+228>>2]=_,_=n[r+124>>2],n[A+232>>2]=n[r+120>>2],n[A+236>>2]=_,_=A+256|0,S0(_,A+240|0,A+224|0),e=n[A+268>>2],n[r+120>>2]=n[A+264>>2],n[r+124>>2]=e,e=n[A+260>>2],n[r+112>>2]=n[A+256>>2],n[r+116>>2]=e,e=n[r+84>>2],n[A+208>>2]=n[r+80>>2],n[A+212>>2]=e,e=n[r+92>>2],n[A+216>>2]=n[r+88>>2],n[A+220>>2]=e,e=n[r+100>>2],n[A+192>>2]=n[r+96>>2],n[A+196>>2]=e,e=n[r+108>>2],n[A+200>>2]=n[r+104>>2],n[A+204>>2]=e,S0(_,A+208|0,A+192|0),e=n[A+268>>2],n[r+104>>2]=n[A+264>>2],n[r+108>>2]=e,e=n[A+260>>2],n[r+96>>2]=n[A+256>>2],n[r+100>>2]=e,e=r- -64|0,t=n[e+4>>2],n[A+176>>2]=n[e>>2],n[A+180>>2]=t,t=n[r+76>>2],n[A+184>>2]=n[r+72>>2],n[A+188>>2]=t,t=n[r+84>>2],n[A+160>>2]=n[r+80>>2],n[A+164>>2]=t,t=n[r+92>>2],n[A+168>>2]=n[r+88>>2],n[A+172>>2]=t,S0(_,A+176|0,A+160|0),t=n[A+268>>2],n[r+88>>2]=n[A+264>>2],n[r+92>>2]=t,t=n[A+260>>2],n[r+80>>2]=n[A+256>>2],n[r+84>>2]=t,t=n[r+52>>2],n[A+144>>2]=n[r+48>>2],n[A+148>>2]=t,t=n[r+60>>2],n[A+152>>2]=n[r+56>>2],n[A+156>>2]=t,t=n[e+4>>2],n[A+128>>2]=n[e>>2],n[A+132>>2]=t,t=n[r+76>>2],n[A+136>>2]=n[r+72>>2],n[A+140>>2]=t,S0(_,A+144|0,A+128|0),t=n[A+268>>2],n[r+72>>2]=n[A+264>>2],n[r+76>>2]=t,t=n[A+260>>2],n[e>>2]=n[A+256>>2],n[e+4>>2]=t,t=n[r+36>>2],n[A+112>>2]=n[r+32>>2],n[A+116>>2]=t,t=n[r+44>>2],n[A+120>>2]=n[r+40>>2],n[A+124>>2]=t,t=n[r+52>>2],n[A+96>>2]=n[r+48>>2],n[A+100>>2]=t,t=n[r+60>>2],n[A+104>>2]=n[r+56>>2],n[A+108>>2]=t,S0(_,A+112|0,A+96|0),t=n[A+268>>2],n[r+56>>2]=n[A+264>>2],n[r+60>>2]=t,t=n[A+260>>2],n[r+48>>2]=n[A+256>>2],n[r+52>>2]=t,t=n[r+20>>2],n[A+80>>2]=n[r+16>>2],n[A+84>>2]=t,t=n[r+28>>2],n[A+88>>2]=n[r+24>>2],n[A+92>>2]=t,t=n[r+36>>2],n[A+64>>2]=n[r+32>>2],n[A+68>>2]=t,t=n[r+44>>2],n[A+72>>2]=n[r+40>>2],n[A+76>>2]=t,S0(_,A+80|0,A- -64|0),t=n[A+268>>2],n[r+40>>2]=n[A+264>>2],n[r+44>>2]=t,t=n[A+260>>2],n[r+32>>2]=n[A+256>>2],n[r+36>>2]=t,t=n[r+4>>2],n[A+48>>2]=n[r>>2],n[A+52>>2]=t,t=n[r+12>>2],n[A+56>>2]=n[r+8>>2],n[A+60>>2]=t,t=n[r+20>>2],n[A+32>>2]=n[r+16>>2],n[A+36>>2]=t,t=n[r+28>>2],n[A+40>>2]=n[r+24>>2],n[A+44>>2]=t,S0(_,A+48|0,A+32|0),t=n[A+268>>2],n[r+24>>2]=n[A+264>>2],n[r+28>>2]=t,t=n[A+260>>2],n[r+16>>2]=n[A+256>>2],n[r+20>>2]=t,t=n[A+276>>2],n[A+16>>2]=n[A+272>>2],n[A+20>>2]=t,t=n[A+284>>2],n[A+24>>2]=n[A+280>>2],n[A+28>>2]=t,t=n[r+4>>2],n[A>>2]=n[r>>2],n[A+4>>2]=t,t=n[r+12>>2],n[A+8>>2]=n[r+8>>2],n[A+12>>2]=t,S0(_,A+16|0,A),_=n[A+268>>2],n[r+8>>2]=n[A+264>>2],n[r+12>>2]=_,_=n[A+260>>2],n[r>>2]=n[A+256>>2],n[r+4>>2]=_,n[r+12>>2]=u^n[r+12>>2],n[r+8>>2]=y^n[r+8>>2],n[r+4>>2]=o^n[r+4>>2],n[r>>2]=i^n[r>>2],n[e>>2]=B^n[e>>2],n[r+68>>2]=l^n[r+68>>2],n[r+72>>2]=j^n[r+72>>2],n[r+76>>2]=v^n[r+76>>2],F=A+288|0}function P4(_,e,r){var A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0,x=0,z=0,$=0,J=0,A0=0,n0=0,t0=0,_0=0,s0=0;A=F-288|0,F=A,d=n[r+16>>2],X=n[r+48>>2],i=s[e+4|0]|s[e+5|0]<<8|(s[e+6|0]<<16|s[e+7|0]<<24),K=n[r+20>>2],O=n[r+52>>2],o=s[e+8|0]|s[e+9|0]<<8|(s[e+10|0]<<16|s[e+11|0]<<24),U=n[r+24>>2],x=n[r+56>>2],y=s[e+12|0]|s[e+13|0]<<8|(s[e+14|0]<<16|s[e+15|0]<<24),z=n[r+28>>2],$=n[r+60>>2],t=n[r+32>>2],u=s[e+16|0]|s[e+17|0]<<8|(s[e+18|0]<<16|s[e+19|0]<<24),J=n[r+80>>2],A0=n[r+112>>2],B=n[r+96>>2],l=n[r+36>>2],j=s[e+20|0]|s[e+21|0]<<8|(s[e+22|0]<<16|s[e+23|0]<<24),n0=n[r+84>>2],t0=n[r+116>>2],v=n[r+100>>2],f=n[r+40>>2],g=s[e+24|0]|s[e+25|0]<<8|(s[e+26|0]<<16|s[e+27|0]<<24),_0=n[r+88>>2],s0=n[r+120>>2],T=n[r+104>>2],m=s[e|0]|s[e+1|0]<<8|(s[e+2|0]<<16|s[e+3|0]<<24),M=n[r+44>>2],C=s[e+28|0]|s[e+29|0]<<8|(s[e+30|0]<<16|s[e+31|0]<<24),G=n[r+108>>2],e=M^(C^(n[r+92>>2]^G&n[r+124>>2])),h[_+28|0]=e,h[_+29|0]=e>>>8,h[_+30|0]=e>>>16,h[_+31|0]=e>>>24,e=T&s0^_0^g^f,h[_+24|0]=e,h[_+25|0]=e>>>8,h[_+26|0]=e>>>16,h[_+27|0]=e>>>24,e=v&t0^n0^j^l,h[_+20|0]=e,h[_+21|0]=e>>>8,h[_+22|0]=e>>>16,h[_+23|0]=e>>>24,e=t^(B&A0^J^u),h[_+16|0]=e,h[_+17|0]=e>>>8,h[_+18|0]=e>>>16,h[_+19|0]=e>>>24,e=$&M^z^y^G,h[_+12|0]=e,h[_+13|0]=e>>>8,h[_+14|0]=e>>>16,h[_+15|0]=e>>>24,e=f&x^U^o^T,h[_+8|0]=e,h[_+9|0]=e>>>8,h[_+10|0]=e>>>16,h[_+11|0]=e>>>24,e=l&O^K^i^v,h[_+4|0]=e,h[_+5|0]=e>>>8,h[_+6|0]=e>>>16,h[_+7|0]=e>>>24,e=t&X^d^m^B,h[_|0]=e,h[_+1|0]=e>>>8,h[_+2|0]=e>>>16,h[_+3|0]=e>>>24,_=n[r+124>>2],n[A+280>>2]=n[r+120>>2],n[A+284>>2]=_,_=n[r+116>>2],n[A+272>>2]=n[r+112>>2],n[A+276>>2]=_,_=n[r+100>>2],n[A+240>>2]=n[r+96>>2],n[A+244>>2]=_,_=n[r+108>>2],n[A+248>>2]=n[r+104>>2],n[A+252>>2]=_,_=n[r+116>>2],n[A+224>>2]=n[r+112>>2],n[A+228>>2]=_,_=n[r+124>>2],n[A+232>>2]=n[r+120>>2],n[A+236>>2]=_,_=A+256|0,S0(_,A+240|0,A+224|0),e=n[A+268>>2],n[r+120>>2]=n[A+264>>2],n[r+124>>2]=e,e=n[A+260>>2],n[r+112>>2]=n[A+256>>2],n[r+116>>2]=e,e=n[r+84>>2],n[A+208>>2]=n[r+80>>2],n[A+212>>2]=e,e=n[r+92>>2],n[A+216>>2]=n[r+88>>2],n[A+220>>2]=e,e=n[r+100>>2],n[A+192>>2]=n[r+96>>2],n[A+196>>2]=e,e=n[r+108>>2],n[A+200>>2]=n[r+104>>2],n[A+204>>2]=e,S0(_,A+208|0,A+192|0),e=n[A+268>>2],n[r+104>>2]=n[A+264>>2],n[r+108>>2]=e,e=n[A+260>>2],n[r+96>>2]=n[A+256>>2],n[r+100>>2]=e,e=r- -64|0,t=n[e+4>>2],n[A+176>>2]=n[e>>2],n[A+180>>2]=t,t=n[r+76>>2],n[A+184>>2]=n[r+72>>2],n[A+188>>2]=t,t=n[r+84>>2],n[A+160>>2]=n[r+80>>2],n[A+164>>2]=t,t=n[r+92>>2],n[A+168>>2]=n[r+88>>2],n[A+172>>2]=t,S0(_,A+176|0,A+160|0),t=n[A+268>>2],n[r+88>>2]=n[A+264>>2],n[r+92>>2]=t,t=n[A+260>>2],n[r+80>>2]=n[A+256>>2],n[r+84>>2]=t,t=n[r+52>>2],n[A+144>>2]=n[r+48>>2],n[A+148>>2]=t,t=n[r+60>>2],n[A+152>>2]=n[r+56>>2],n[A+156>>2]=t,t=n[e+4>>2],n[A+128>>2]=n[e>>2],n[A+132>>2]=t,t=n[r+76>>2],n[A+136>>2]=n[r+72>>2],n[A+140>>2]=t,S0(_,A+144|0,A+128|0),t=n[A+268>>2],n[r+72>>2]=n[A+264>>2],n[r+76>>2]=t,t=n[A+260>>2],n[e>>2]=n[A+256>>2],n[e+4>>2]=t,t=n[r+36>>2],n[A+112>>2]=n[r+32>>2],n[A+116>>2]=t,t=n[r+44>>2],n[A+120>>2]=n[r+40>>2],n[A+124>>2]=t,t=n[r+52>>2],n[A+96>>2]=n[r+48>>2],n[A+100>>2]=t,t=n[r+60>>2],n[A+104>>2]=n[r+56>>2],n[A+108>>2]=t,S0(_,A+112|0,A+96|0),t=n[A+268>>2],n[r+56>>2]=n[A+264>>2],n[r+60>>2]=t,t=n[A+260>>2],n[r+48>>2]=n[A+256>>2],n[r+52>>2]=t,t=n[r+20>>2],n[A+80>>2]=n[r+16>>2],n[A+84>>2]=t,t=n[r+28>>2],n[A+88>>2]=n[r+24>>2],n[A+92>>2]=t,t=n[r+36>>2],n[A+64>>2]=n[r+32>>2],n[A+68>>2]=t,t=n[r+44>>2],n[A+72>>2]=n[r+40>>2],n[A+76>>2]=t,S0(_,A+80|0,A- -64|0),t=n[A+268>>2],n[r+40>>2]=n[A+264>>2],n[r+44>>2]=t,t=n[A+260>>2],n[r+32>>2]=n[A+256>>2],n[r+36>>2]=t,t=n[r+4>>2],n[A+48>>2]=n[r>>2],n[A+52>>2]=t,t=n[r+12>>2],n[A+56>>2]=n[r+8>>2],n[A+60>>2]=t,t=n[r+20>>2],n[A+32>>2]=n[r+16>>2],n[A+36>>2]=t,t=n[r+28>>2],n[A+40>>2]=n[r+24>>2],n[A+44>>2]=t,S0(_,A+48|0,A+32|0),t=n[A+268>>2],n[r+24>>2]=n[A+264>>2],n[r+28>>2]=t,t=n[A+260>>2],n[r+16>>2]=n[A+256>>2],n[r+20>>2]=t,t=n[A+276>>2],n[A+16>>2]=n[A+272>>2],n[A+20>>2]=t,t=n[A+284>>2],n[A+24>>2]=n[A+280>>2],n[A+28>>2]=t,t=n[r+4>>2],n[A>>2]=n[r>>2],n[A+4>>2]=t,t=n[r+12>>2],n[A+8>>2]=n[r+8>>2],n[A+12>>2]=t,S0(_,A+16|0,A),_=n[A+268>>2],n[r+8>>2]=n[A+264>>2],n[r+12>>2]=_,_=n[A+260>>2],n[r>>2]=n[A+256>>2],n[r+4>>2]=_,n[r+12>>2]=n[r+12>>2]^y,n[r+8>>2]=n[r+8>>2]^o,n[r+4>>2]=n[r+4>>2]^i,n[r>>2]=n[r>>2]^m,n[e>>2]=n[e>>2]^u,n[r+68>>2]=n[r+68>>2]^j,n[r+72>>2]=n[r+72>>2]^g,n[r+76>>2]=C^n[r+76>>2],F=A+288|0}function U6(_,e){var r=0,A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0;j=F-48|0,F=j,r=FA(_);r:{if(r||(r=-26,e-3>>>0<4294967294))break r;t=n[_+44>>2],r=n[_+48>>2],n[j+4>>2]=0,A=n[_+40>>2],n[j+32>>2]=r,n[j+16>>2]=-1,n[j+12>>2]=A,A=r<<3,u=A>>>0<t>>>0?t:A,t=r<<2,r=(u>>>0)/(t>>>0)|0,n[j+24>>2]=r,n[j+28>>2]=r<<2,n[j+20>>2]=E0(r,t),r=n[_+52>>2],n[j+40>>2]=e,n[j+36>>2]=r,e=F,l=e,r=e-1152&-64,F=r,t=j+4|0,e=-25;A:{n:{if(!t|!_||(A=a1(n[t+20>>2]<<3),n[t+4>>2]=A,e=-22,!A))break n;e:{e=n[t+16>>2];t:{if(!e||(A=e<<10,((A>>>0)/(e>>>0)|0)!=1024)||(e=a1(12),n[t>>2]=e,!e))break t;n[e>>2]=0,n[e+4>>2]=0,e=E4(r+128|0,A),n[10172]=e;_:{if(e){n[r+128>>2]=0;break _}if(e=n[r+128>>2],e)break e}$2(n[t>>2]),n[t>>2]=0}cn(t,n[_+56>>2]),F=l,e=-22;break A}n[n[t>>2]>>2]=e,n[n[t>>2]+4>>2]=e,n[n[t>>2]+8>>2]=A,v=n[t+36>>2],e=r+128|0,M1(e,0,0,64),n[r+124>>2]=n[_+48>>2],A=r+124|0,C2(e,A,4,0),n[r+124>>2]=n[_+4>>2],C2(e,A,4,0),n[r+124>>2]=n[_+44>>2],C2(e,A,4,0),n[r+124>>2]=n[_+40>>2],C2(e,A,4,0),n[r+124>>2]=19,C2(e,A,4,0),n[r+124>>2]=v,C2(e,A,4,0),n[r+124>>2]=n[_+12>>2],C2(e,A,4,0),A=n[_+8>>2];e:{if(!A||(C2(e,A,n[_+12>>2],0),!(h[_+56|0]&1)))break e;Y0(n[_+8>>2],n[_+12>>2]),n[_+12>>2]=0}n[r+124>>2]=n[_+20>>2],e=r+128|0,C2(e,r+124|0,4,0),A=n[_+16>>2],A&&C2(e,A,n[_+20>>2],0),n[r+124>>2]=n[_+28>>2],e=r+128|0,C2(e,r+124|0,4,0),A=n[_+24>>2];e:{if(!A||(C2(e,A,n[_+28>>2],0),!(s[_+56|0]&2)))break e;Y0(n[_+24>>2],n[_+28>>2]),n[_+28>>2]=0}if(n[r+124>>2]=n[_+36>>2],e=r+128|0,C2(e,r+124|0,4,0),A=n[_+32>>2],A&&C2(e,A,n[_+36>>2],0),I1(r+128|0,r+48|0,64),Y0(r+112|0,8),n[t+28>>2])for(A=0;;){for(n[r+112>>2]=0,n[r+116>>2]=A,SA(r+128|0,1024,r+48|0,72),v=n[n[t>>2]+4>>2]+(E0(n[t+24>>2],A)<<10)|0,e=0;y=e<<3,i=y+v|0,u=r+128|0,B=u+y|0,o=n[B+4>>2],n[i>>2]=n[B>>2],n[i+4>>2]=o,i=y|8,B=i+v|0,i=i+u|0,o=n[i+4>>2],n[B>>2]=n[i>>2],n[B+4>>2]=o,i=y|16,B=i+v|0,i=i+u|0,o=n[i+4>>2],n[B>>2]=n[i>>2],n[B+4>>2]=o,y=y|24,i=y+v|0,y=y+u|0,B=n[y+4>>2],n[i>>2]=n[y>>2],n[i+4>>2]=B,e=e+4|0,(e|0)!=128;);for(n[r+112>>2]=1,SA(u,1024,r+48|0,72),v=(n[n[t>>2]+4>>2]+(E0(n[t+24>>2],A)<<10)|0)+1024|0,e=0;y=e<<3,i=y+v|0,u=r+128|0,B=u+y|0,o=n[B+4>>2],n[i>>2]=n[B>>2],n[i+4>>2]=o,i=y|8,B=i+v|0,i=i+u|0,o=n[i+4>>2],n[B>>2]=n[i>>2],n[B+4>>2]=o,i=y|16,B=i+v|0,i=i+u|0,o=n[i+4>>2],n[B>>2]=n[i>>2],n[B+4>>2]=o,y=y|24,i=y+v|0,y=y+u|0,u=n[y+4>>2],n[i>>2]=n[y>>2],n[i+4>>2]=u,e=e+4|0,(e|0)!=128;);if(A=A+1|0,!(A>>>0<p1[t+28>>2]))break}Y0(r+128|0,1024),Y0(r+48|0,72),e=0}F=l}if(r=e,e)break r;if(n[j+12>>2])for(;;){e=F-80|0,F=e,t=j+4|0;A:{if(!t|!n[t+28>>2])break A;for(h[e+72|0]=0,n[e+64>>2]=g,r=0;n[e+76>>2]=0,n[e+68>>2]=r,A=n[e+68>>2],n[e+48>>2]=n[e+64>>2],n[e+52>>2]=A,A=n[e+76>>2],n[e+56>>2]=n[e+72>>2],n[e+60>>2]=A,N6(t,e+48|0),r=r+1|0,A=n[t+28>>2],r>>>0<A>>>0;);if(h[e+72|0]=1,!A)break A;for(r=0;n[e+76>>2]=0,n[e+68>>2]=r,A=n[e+68>>2],n[e+32>>2]=n[e+64>>2],n[e+36>>2]=A,A=n[e+76>>2],n[e+40>>2]=n[e+72>>2],n[e+44>>2]=A,N6(t,e+32|0),r=r+1|0,A=n[t+28>>2],r>>>0<A>>>0;);if(h[e+72|0]=2,!A)break A;for(r=0;n[e+76>>2]=0,n[e+68>>2]=r,A=n[e+68>>2],n[e+16>>2]=n[e+64>>2],n[e+20>>2]=A,A=n[e+76>>2],n[e+24>>2]=n[e+72>>2],n[e+28>>2]=A,N6(t,e+16|0),r=r+1|0,A=n[t+28>>2],r>>>0<A>>>0;);if(h[e+72|0]=3,!A)break A;for(r=0;n[e+76>>2]=0,n[e+68>>2]=r,A=n[e+68>>2],n[e>>2]=n[e+64>>2],n[e+4>>2]=A,A=n[e+76>>2],n[e+8>>2]=n[e+72>>2],n[e+12>>2]=A,N6(t,e),r=r+1|0,r>>>0<p1[t+28>>2];);}if(F=e+80|0,g=g+1|0,!(g>>>0<p1[j+12>>2]))break}if(e=F-2048|0,F=e,r=j+4|0,!(!_|!r)){if(g=n[r+24>>2],i=n[n[r>>2]+4>>2]+(g<<10)|0,b0(e+1024|0,i-1024|0,1024),B=n[r+28>>2],B>>>0>=2)for(v=1;;){for(t=(i+(E0(v,g)<<10)|0)-1024|0,y=0;A=y<<3,u=e+1024|0,l=A+u|0,o=n[l>>2],f=A+t|0,T=n[f>>2],f=n[l+4>>2]^n[f+4>>2],n[l>>2]=o^T,n[l+4>>2]=f,o=A|8,l=o+u|0,f=n[l>>2],o=t+o|0,T=n[o>>2],o=n[l+4>>2]^n[o+4>>2],n[l>>2]=f^T,n[l+4>>2]=o,o=A|16,l=o+u|0,f=n[l>>2],o=t+o|0,T=n[o>>2],o=n[l+4>>2]^n[o+4>>2],n[l>>2]=f^T,n[l+4>>2]=o,l=u,u=A|24,A=l+u|0,l=n[A>>2],u=t+u|0,o=n[u>>2],u=n[A+4>>2]^n[u+4>>2],n[A>>2]=o^l,n[A+4>>2]=u,y=y+4|0,(y|0)!=128;);if(v=v+1|0,(B|0)==(v|0))break}t=e+1024|0,b0(e,t,1024),SA(n[_>>2],n[_+4>>2],e,1024),Y0(t,1024),Y0(e,1024),cn(r,n[_+56>>2])}F=e+2048|0,r=0}return F=j+48|0,r}function T4(_,e,r){var A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0;for(A=F-288|0,F=A,l=s[e+4|0]|s[e+5|0]<<8|(s[e+6|0]<<16|s[e+7|0]<<24),j=s[e+8|0]|s[e+9|0]<<8|(s[e+10|0]<<16|s[e+11|0]<<24),v=s[e+12|0]|s[e+13|0]<<8|(s[e+14|0]<<16|s[e+15|0]<<24),o=s[_+4|0]|s[_+5|0]<<8|(s[_+6|0]<<16|s[_+7|0]<<24),y=s[_+8|0]|s[_+9|0]<<8|(s[_+10|0]<<16|s[_+11|0]<<24),u=s[_+12|0]|s[_+13|0]<<8|(s[_+14|0]<<16|s[_+15|0]<<24),f=s[e|0]|s[e+1|0]<<8|(s[e+2|0]<<16|s[e+3|0]<<24),B=s[_|0]|s[_+1|0]<<8|(s[_+2|0]<<16|s[_+3|0]<<24),_=B^33620224,n[r+112>>2]=_,n[r+96>>2]=B^1427652059,n[r+80>>2]=_,_=r- -64|0,e=B^f,n[_>>2]=e,n[r+56>>2]=1110511904,n[r+60>>2]=-584534669,n[r+48>>2]=1427652059,n[r+52>>2]=-248528275,n[r+40>>2]=1496785429,n[r+44>>2]=1652156816,n[r+32>>2]=33620224,n[r+36>>2]=218629379,n[r+24>>2]=1110511904,n[r+28>>2]=-584534669,n[r+16>>2]=1427652059,n[r+20>>2]=-248528275,n[r>>2]=e,e=u^1652156816,n[r+124>>2]=e,i=y^1496785429,n[r+120>>2]=i,t=o^218629379,n[r+116>>2]=t,n[r+108>>2]=u^-584534669,n[r+104>>2]=y^1110511904,n[r+100>>2]=o^-248528275,n[r+92>>2]=e,n[r+88>>2]=i,n[r+84>>2]=t,e=u^v,n[r+76>>2]=e,i=y^j,n[r+72>>2]=i,t=o^l,n[r+68>>2]=t,n[r+12>>2]=e,n[r+8>>2]=i,n[r+4>>2]=t,i=0;e=n[r+124>>2],n[A+280>>2]=n[r+120>>2],n[A+284>>2]=e,e=n[r+116>>2],n[A+272>>2]=n[r+112>>2],n[A+276>>2]=e,e=n[r+100>>2],n[A+240>>2]=n[r+96>>2],n[A+244>>2]=e,e=n[r+108>>2],n[A+248>>2]=n[r+104>>2],n[A+252>>2]=e,e=n[r+116>>2],n[A+224>>2]=n[r+112>>2],n[A+228>>2]=e,e=n[r+124>>2],n[A+232>>2]=n[r+120>>2],n[A+236>>2]=e,e=A+256|0,S0(e,A+240|0,A+224|0),t=n[A+268>>2],n[r+120>>2]=n[A+264>>2],n[r+124>>2]=t,t=n[A+260>>2],n[r+112>>2]=n[A+256>>2],n[r+116>>2]=t,t=n[r+84>>2],n[A+208>>2]=n[r+80>>2],n[A+212>>2]=t,t=n[r+92>>2],n[A+216>>2]=n[r+88>>2],n[A+220>>2]=t,t=n[r+100>>2],n[A+192>>2]=n[r+96>>2],n[A+196>>2]=t,t=n[r+108>>2],n[A+200>>2]=n[r+104>>2],n[A+204>>2]=t,S0(e,A+208|0,A+192|0),t=n[A+268>>2],n[r+104>>2]=n[A+264>>2],n[r+108>>2]=t,t=n[A+260>>2],n[r+96>>2]=n[A+256>>2],n[r+100>>2]=t,t=n[_+4>>2],n[A+176>>2]=n[_>>2],n[A+180>>2]=t,t=n[_+12>>2],n[A+184>>2]=n[_+8>>2],n[A+188>>2]=t,t=n[r+84>>2],n[A+160>>2]=n[r+80>>2],n[A+164>>2]=t,t=n[r+92>>2],n[A+168>>2]=n[r+88>>2],n[A+172>>2]=t,S0(e,A+176|0,A+160|0),t=n[A+268>>2],n[r+88>>2]=n[A+264>>2],n[r+92>>2]=t,t=n[A+260>>2],n[r+80>>2]=n[A+256>>2],n[r+84>>2]=t,t=n[r+52>>2],n[A+144>>2]=n[r+48>>2],n[A+148>>2]=t,t=n[r+60>>2],n[A+152>>2]=n[r+56>>2],n[A+156>>2]=t,t=n[_+4>>2],n[A+128>>2]=n[_>>2],n[A+132>>2]=t,t=n[_+12>>2],n[A+136>>2]=n[_+8>>2],n[A+140>>2]=t,S0(e,A+144|0,A+128|0),t=n[A+268>>2],n[_+8>>2]=n[A+264>>2],n[_+12>>2]=t,t=n[A+260>>2],n[_>>2]=n[A+256>>2],n[_+4>>2]=t,t=n[r+36>>2],n[A+112>>2]=n[r+32>>2],n[A+116>>2]=t,t=n[r+44>>2],n[A+120>>2]=n[r+40>>2],n[A+124>>2]=t,t=n[r+52>>2],n[A+96>>2]=n[r+48>>2],n[A+100>>2]=t,t=n[r+60>>2],n[A+104>>2]=n[r+56>>2],n[A+108>>2]=t,S0(e,A+112|0,A+96|0),t=n[A+268>>2],n[r+56>>2]=n[A+264>>2],n[r+60>>2]=t,t=n[A+260>>2],n[r+48>>2]=n[A+256>>2],n[r+52>>2]=t,t=n[r+20>>2],n[A+80>>2]=n[r+16>>2],n[A+84>>2]=t,t=n[r+28>>2],n[A+88>>2]=n[r+24>>2],n[A+92>>2]=t,t=n[r+36>>2],n[A+64>>2]=n[r+32>>2],n[A+68>>2]=t,t=n[r+44>>2],n[A+72>>2]=n[r+40>>2],n[A+76>>2]=t,S0(e,A+80|0,A- -64|0),t=n[A+268>>2],n[r+40>>2]=n[A+264>>2],n[r+44>>2]=t,t=n[A+260>>2],n[r+32>>2]=n[A+256>>2],n[r+36>>2]=t,t=n[r+4>>2],n[A+48>>2]=n[r>>2],n[A+52>>2]=t,t=n[r+12>>2],n[A+56>>2]=n[r+8>>2],n[A+60>>2]=t,t=n[r+20>>2],n[A+32>>2]=n[r+16>>2],n[A+36>>2]=t,t=n[r+28>>2],n[A+40>>2]=n[r+24>>2],n[A+44>>2]=t,S0(e,A+48|0,A+32|0),t=n[A+268>>2],n[r+24>>2]=n[A+264>>2],n[r+28>>2]=t,t=n[A+260>>2],n[r+16>>2]=n[A+256>>2],n[r+20>>2]=t,t=n[A+276>>2],n[A+16>>2]=n[A+272>>2],n[A+20>>2]=t,t=n[A+284>>2],n[A+24>>2]=n[A+280>>2],n[A+28>>2]=t,t=n[r+4>>2],n[A>>2]=n[r>>2],n[A+4>>2]=t,t=n[r+12>>2],n[A+8>>2]=n[r+8>>2],n[A+12>>2]=t,S0(e,A+16|0,A),e=n[A+268>>2],n[r+8>>2]=n[A+264>>2],n[r+12>>2]=e,e=n[A+260>>2],n[r>>2]=n[A+256>>2],n[r+4>>2]=e,n[r+12>>2]=n[r+12>>2]^v,n[r+8>>2]=n[r+8>>2]^j,n[r+4>>2]=n[r+4>>2]^l,n[r>>2]=n[r>>2]^f,n[_>>2]=B^n[_>>2],n[r+68>>2]=n[r+68>>2]^o,n[r+72>>2]=n[r+72>>2]^y,n[r+76>>2]=n[r+76>>2]^u,i=i+1|0,(i|0)!=10;);F=A+288|0}function x6(_,e,r,A,t){var i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0,x=0,z=0,$=0,J=0,A0=0,n0=0,t0=0,_0=0,s0=0,o0=0,B0=0,u0=0,l0=0,j0=0,v0=0,f0=0,c0=0,q0=0,P0=0,m0=0,C0=0,M0=0,I0=0,G0=0,d0=0,L0=0,F0=0,K0=0,N0=0;for(B=F+-64|0,n0=n[_+60>>2],t0=n[_+56>>2],x=n[_+52>>2],U=n[_+48>>2],_0=n[_+44>>2],s0=n[_+40>>2],o0=n[_+36>>2],B0=n[_+32>>2],u0=n[_+28>>2],l0=n[_+24>>2],j0=n[_+20>>2],v0=n[_+16>>2],f0=n[_+12>>2],c0=n[_+8>>2],q0=n[_+4>>2],P0=n[_>>2];;){r:{if(!t&A>>>0>63|t){i=r;break r}for(n[B+56>>2]=0,n[B+60>>2]=0,n[B+48>>2]=0,n[B+52>>2]=0,n[B+40>>2]=0,n[B+44>>2]=0,n[B+32>>2]=0,n[B+36>>2]=0,n[B+24>>2]=0,n[B+28>>2]=0,n[B+16>>2]=0,n[B+20>>2]=0,n[B+8>>2]=0,n[B+12>>2]=0,n[B>>2]=0,n[B+4>>2]=0,y=0;h[y+B|0]=s[e+y|0],y=y+1|0,!!(!t&A>>>0>y>>>0|t););i=B,e=i,m0=r}for(z=20,o=P0,T=q0,m=c0,G=f0,y=v0,r=j0,l=l0,j=u0,v=B0,X=o0,M=s0,u=n0,K=t0,d=x,C=U,f=_0;g=y,y=o+y|0,o=b(y^C,16),v=o+v|0,C=b(g^v,12),g=C,O=y+C|0,C=b(O^o,8),v=C+v|0,y=b(g^v,7),o=j+G|0,u=b(o^u,16),f=u+f|0,j=b(f^j,12),m=l+m|0,G=b(m^K,16),M=G+M|0,l=b(M^l,12),$=o+j|0,K=$+y|0,m=l+m|0,J=b(m^G,8),o=b(K^J,16),T=r+T|0,G=b(T^d,16),X=G+X|0,r=b(X^r,12),g=y,T=r+T|0,d=b(T^G,8),A0=d+X|0,y=A0+o|0,g=b(g^y,12),G=g+K|0,K=b(o^G,8),X=K+y|0,y=b(X^g,7),g=v,v=m,o=b(u^$,8),u=o+f|0,m=b(u^j,7),v=v+m|0,d=b(v^d,16),j=g+d|0,f=b(j^m,12),m=f+v|0,d=b(d^m,8),v=j+d|0,j=b(v^f,7),f=u,u=T,M=M+J|0,T=b(M^l,7),u=u+T|0,C=b(u^C,16),l=f+C|0,f=u,u=b(l^T,12),T=f+u|0,C=b(C^T,8),f=l+C|0,l=b(f^u,7),g=M,u=o,o=b(r^A0,7),M=o+O|0,u=b(u^M,16),r=g+u|0,O=b(r^o,12),o=O+M|0,u=b(u^o,8),M=r+u|0,r=b(M^O,7),z=z-2|0,!!z;);if(z=s[e+4|0]|s[e+5|0]<<8|(s[e+6|0]<<16|s[e+7|0]<<24),O=s[e+8|0]|s[e+9|0]<<8|(s[e+10|0]<<16|s[e+11|0]<<24),$=s[e+12|0]|s[e+13|0]<<8|(s[e+14|0]<<16|s[e+15|0]<<24),J=s[e+16|0]|s[e+17|0]<<8|(s[e+18|0]<<16|s[e+19|0]<<24),A0=s[e+20|0]|s[e+21|0]<<8|(s[e+22|0]<<16|s[e+23|0]<<24),g=s[e+24|0]|s[e+25|0]<<8|(s[e+26|0]<<16|s[e+27|0]<<24),C0=s[e+28|0]|s[e+29|0]<<8|(s[e+30|0]<<16|s[e+31|0]<<24),M0=s[e+32|0]|s[e+33|0]<<8|(s[e+34|0]<<16|s[e+35|0]<<24),I0=s[e+36|0]|s[e+37|0]<<8|(s[e+38|0]<<16|s[e+39|0]<<24),G0=s[e+40|0]|s[e+41|0]<<8|(s[e+42|0]<<16|s[e+43|0]<<24),d0=s[e+44|0]|s[e+45|0]<<8|(s[e+46|0]<<16|s[e+47|0]<<24),L0=s[e+48|0]|s[e+49|0]<<8|(s[e+50|0]<<16|s[e+51|0]<<24),F0=s[e+52|0]|s[e+53|0]<<8|(s[e+54|0]<<16|s[e+55|0]<<24),K0=s[e+56|0]|s[e+57|0]<<8|(s[e+58|0]<<16|s[e+59|0]<<24),N0=s[e+60|0]|s[e+61|0]<<8|(s[e+62|0]<<16|s[e+63|0]<<24),o=o+P0^(s[e|0]|s[e+1|0]<<8|(s[e+2|0]<<16|s[e+3|0]<<24)),h[i|0]=o,h[i+1|0]=o>>>8,h[i+2|0]=o>>>16,h[i+3|0]=o>>>24,o=u+n0^N0,h[i+60|0]=o,h[i+61|0]=o>>>8,h[i+62|0]=o>>>16,h[i+63|0]=o>>>24,o=K+t0^K0,h[i+56|0]=o,h[i+57|0]=o>>>8,h[i+58|0]=o>>>16,h[i+59|0]=o>>>24,o=d+x^F0,h[i+52|0]=o,h[i+53|0]=o>>>8,h[i+54|0]=o>>>16,h[i+55|0]=o>>>24,o=C+U^L0,h[i+48|0]=o,h[i+49|0]=o>>>8,h[i+50|0]=o>>>16,h[i+51|0]=o>>>24,o=f+_0^d0,h[i+44|0]=o,h[i+45|0]=o>>>8,h[i+46|0]=o>>>16,h[i+47|0]=o>>>24,o=M+s0^G0,h[i+40|0]=o,h[i+41|0]=o>>>8,h[i+42|0]=o>>>16,h[i+43|0]=o>>>24,o=X+o0^I0,h[i+36|0]=o,h[i+37|0]=o>>>8,h[i+38|0]=o>>>16,h[i+39|0]=o>>>24,o=v+B0^M0,h[i+32|0]=o,h[i+33|0]=o>>>8,h[i+34|0]=o>>>16,h[i+35|0]=o>>>24,j=j+u0^C0,h[i+28|0]=j,h[i+29|0]=j>>>8,h[i+30|0]=j>>>16,h[i+31|0]=j>>>24,l=g^l+l0,h[i+24|0]=l,h[i+25|0]=l>>>8,h[i+26|0]=l>>>16,h[i+27|0]=l>>>24,r=A0^r+j0,h[i+20|0]=r,h[i+21|0]=r>>>8,h[i+22|0]=r>>>16,h[i+23|0]=r>>>24,r=J^y+v0,h[i+16|0]=r,h[i+17|0]=r>>>8,h[i+18|0]=r>>>16,h[i+19|0]=r>>>24,r=$^G+f0,h[i+12|0]=r,h[i+13|0]=r>>>8,h[i+14|0]=r>>>16,h[i+15|0]=r>>>24,r=O^m+c0,h[i+8|0]=r,h[i+9|0]=r>>>8,h[i+10|0]=r>>>16,h[i+11|0]=r>>>24,r=z^T+q0,h[i+4|0]=r,h[i+5|0]=r>>>8,h[i+6|0]=r>>>16,h[i+7|0]=r>>>24,U=U+1|0,x=!U+x|0,!t&A>>>0<=64){if(!t&A>>>0<=63)for(y=0;h[y+m0|0]=s[i+y|0],y=y+1|0,A>>>0>y>>>0;);n[_+52>>2]=x,n[_+48>>2]=U}else{e=e- -64|0,r=i- -64|0,t=t-1|0,A=A+-64|0,t=A>>>0<4294967232?t+1|0:t;continue}break}}function y6(_,e){var r=0,A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0,x=0,z=0,$=0,J=0,A0=0,n0=0,t0=0,_0=0,s0=0,o0=0,B0=0,u0=0,l0=0,j0=0,v0=0,f0=0,c0=0,q0=0,P0=0,m0=0,C0=0;r=F-800|0,F=r,t=e+40|0,A=n[t>>2],i=n[e+80>>2],o=n[e+44>>2],y=n[e+84>>2],u=n[e+48>>2],f=n[e+88>>2],B=n[e+52>>2],m=n[e+92>>2],g=n[e+56>>2],M=n[e+96>>2],C=n[e+60>>2],G=n[e+100>>2],l=e- -64|0,d=n[l>>2],X=n[e+104>>2],K=n[e+68>>2],O=n[e+108>>2],U=n[e+72>>2],x=n[e+112>>2],j=n[e+76>>2],v=n[e+116>>2],n[r+324>>2]=j+v,n[r+320>>2]=U+x,n[r+316>>2]=K+O,n[r+312>>2]=d+X,n[r+308>>2]=C+G,n[r+304>>2]=g+M,n[r+300>>2]=B+m,n[r+296>>2]=u+f,n[r+292>>2]=o+y,n[r+288>>2]=A+i,n[r+36>>2]=v-j,n[r+32>>2]=x-U,n[r+28>>2]=O-K,n[r+24>>2]=X-d,n[r+20>>2]=G-C,n[r+16>>2]=M-g,n[r+12>>2]=m-B,n[r+8>>2]=f-u,n[r+4>>2]=y-o,n[r>>2]=i-A,A=r+288|0,r0(A,A,r),o=r+240|0,r0(o,e,t),i=r+192|0,N(i,o),r0(i,A,i),n[r+436>>2]=0,n[r+440>>2]=0,n[r+444>>2]=0,n[r+448>>2]=0,n[r+452>>2]=0,n[r+456>>2]=0,n[r+460>>2]=0,n[r+464>>2]=0,n[r+468>>2]=0,n[r+432>>2]=1,y=r+576|0,YA(y,r+432|0,i),i=r+720|0,r0(i,y,A),m=r+672|0,r0(m,y,o),B=r+48|0,r0(B,i,m),A=e+120|0,r0(B,B,A),r0(r+528|0,e,1632),r0(r+480|0,t,1632),r0(r+624|0,i,2944),i=r+336|0,r0(i,A,B),f=r+384|0,G2(f,i),J=s[r+384|0],i=n[e+36>>2],A=n[e+32>>2],n[r+176>>2]=A,n[r+180>>2]=i,o=n[e+28>>2],i=n[e+24>>2],n[r+168>>2]=i,n[r+172>>2]=o,y=n[e+20>>2],o=n[e+16>>2],n[r+160>>2]=o,n[r+164>>2]=y,u=n[e+12>>2],y=n[e+8>>2],n[r+152>>2]=y,n[r+156>>2]=u,g=n[e+4>>2],u=n[e>>2],n[r+144>>2]=u,n[r+148>>2]=g,g=n[t>>2],M=n[e+44>>2],C=n[e+48>>2],G=n[e+52>>2],d=n[e+56>>2],X=n[e+60>>2],K=n[l>>2],O=n[e+68>>2],U=n[e+72>>2],x=n[e+76>>2],A0=n[r+484>>2],l=n[r+148>>2],n0=n[r+492>>2],j=n[r+156>>2],t0=n[r+500>>2],v=n[r+164>>2],_0=n[r+508>>2],T=n[r+172>>2],s0=n[r+516>>2],$=n[r+180>>2],o0=n[r+480>>2],B0=n[r+488>>2],u0=n[r+496>>2],z=n[r+504>>2],t=0-(J&1)|0,n[r+176>>2]=A^t&(A^n[r+512>>2]),n[r+168>>2]=i^t&(i^z),n[r+160>>2]=o^t&(o^u0),n[r+152>>2]=y^t&(y^B0),n[r+144>>2]=u^t&(u^o0),n[r+180>>2]=$^t&($^s0),n[r+172>>2]=T^t&(T^_0),n[r+164>>2]=v^t&(v^t0),n[r+156>>2]=j^t&(j^n0),n[r+148>>2]=l^t&(l^A0),$=n[r+528>>2],J=n[r+532>>2],A0=n[r+536>>2],n0=n[r+540>>2],t0=n[r+544>>2],_0=n[r+548>>2],s0=n[r+552>>2],o0=n[r+556>>2],B0=n[r+560>>2],u0=n[r+564>>2],A=n[r+672>>2],z=n[r+624>>2],i=n[r+676>>2],j0=n[r+628>>2],o=n[r+680>>2],v0=n[r+632>>2],y=n[r+684>>2],f0=n[r+636>>2],u=n[r+688>>2],c0=n[r+640>>2],l=n[r+692>>2],q0=n[r+644>>2],j=n[r+696>>2],P0=n[r+648>>2],v=n[r+700>>2],m0=n[r+652>>2],T=n[r+704>>2],C0=n[r+656>>2],l0=n[r+708>>2],n[r+708>>2]=l0^t&(n[r+660>>2]^l0),n[r+704>>2]=T^t&(T^C0),n[r+700>>2]=v^t&(v^m0),n[r+696>>2]=j^t&(j^P0),n[r+692>>2]=l^t&(l^q0),n[r+688>>2]=u^t&(u^c0),n[r+684>>2]=y^t&(y^f0),n[r+680>>2]=o^t&(o^v0),n[r+676>>2]=i^t&(i^j0),n[r+672>>2]=A^t&(A^z),A=r+96|0,r0(A,r+144|0,B),G2(f,A),i=n[e+80>>2],o=n[e+84>>2],y=n[e+88>>2],u=n[e+92>>2],B=n[e+96>>2],l=n[e+100>>2],j=n[e+104>>2],v=n[e+108>>2],T=n[e+112>>2],z=n[e+116>>2],e=0-(h[r+384|0]&1)|0,A=x^t&(x^u0),n[r+420>>2]=z-(e&(0-A^A)^A),A=U^t&(U^B0),n[r+416>>2]=T-(e&(0-A^A)^A),A=O^t&(O^o0),n[r+412>>2]=v-(e&(0-A^A)^A),A=K^t&(K^s0),n[r+408>>2]=j-(e&(0-A^A)^A),A=X^t&(X^_0),n[r+404>>2]=l-(e&(0-A^A)^A),A=d^t&(d^t0),n[r+400>>2]=B-(e&(0-A^A)^A),A=G^t&(G^n0),n[r+396>>2]=u-(e&(0-A^A)^A),A=C^t&(C^A0),n[r+392>>2]=y-(e&(0-A^A)^A),A=M^t&(M^J),n[r+388>>2]=o-(e&(0-A^A)^A),A=e,e=g^t&(g^$),n[r+384>>2]=i-(A&(0-e^e)^e),r0(f,m,f),G2(r+768|0,f),e=0-(h[r+768|0]&1)|0,A=n[r+384>>2],n[r+384>>2]=e&(0-A^A)^A,A=n[r+388>>2],n[r+388>>2]=e&(0-A^A)^A,A=n[r+392>>2],n[r+392>>2]=e&(0-A^A)^A,A=n[r+396>>2],n[r+396>>2]=e&(0-A^A)^A,A=n[r+400>>2],n[r+400>>2]=e&(0-A^A)^A,A=n[r+404>>2],n[r+404>>2]=e&(0-A^A)^A,A=n[r+408>>2],n[r+408>>2]=e&(0-A^A)^A,A=n[r+412>>2],n[r+412>>2]=e&(0-A^A)^A,A=n[r+416>>2],n[r+416>>2]=e&(0-A^A)^A,A=e,e=n[r+420>>2],n[r+420>>2]=A&(0-e^e)^e,G2(_,f),F=r+800|0}function w4(_,e,r,A,t){var i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0;for(i=F-224|0,F=i,j=n[t+60>>2]^A>>>29,v=n[t+56>>2]^A<<3,y=n[t+52>>2]^r>>>29,B=n[t+48>>2]^r<<3,o=t- -64|0;r=n[t+92>>2],n[i+216>>2]=n[t+88>>2],n[i+220>>2]=r,r=n[t+84>>2],n[i+208>>2]=n[t+80>>2],n[i+212>>2]=r,r=n[o+4>>2],n[i+176>>2]=n[o>>2],n[i+180>>2]=r,r=n[o+12>>2],n[i+184>>2]=n[o+8>>2],n[i+188>>2]=r,r=n[t+84>>2],n[i+160>>2]=n[t+80>>2],n[i+164>>2]=r,r=n[t+92>>2],n[i+168>>2]=n[t+88>>2],n[i+172>>2]=r,A=i+192|0,S0(A,i+176|0,i+160|0),r=n[i+204>>2],n[t+88>>2]=n[i+200>>2],n[t+92>>2]=r,r=n[i+196>>2],n[t+80>>2]=n[i+192>>2],n[t+84>>2]=r,r=n[t+52>>2],n[i+144>>2]=n[t+48>>2],n[i+148>>2]=r,r=n[t+60>>2],n[i+152>>2]=n[t+56>>2],n[i+156>>2]=r,r=n[o+4>>2],n[i+128>>2]=n[o>>2],n[i+132>>2]=r,r=n[o+12>>2],n[i+136>>2]=n[o+8>>2],n[i+140>>2]=r,S0(A,i+144|0,i+128|0),r=n[i+204>>2],n[o+8>>2]=n[i+200>>2],n[o+12>>2]=r,r=n[i+196>>2],n[o>>2]=n[i+192>>2],n[o+4>>2]=r,r=n[t+36>>2],n[i+112>>2]=n[t+32>>2],n[i+116>>2]=r,r=n[t+44>>2],n[i+120>>2]=n[t+40>>2],n[i+124>>2]=r,r=n[t+52>>2],n[i+96>>2]=n[t+48>>2],n[i+100>>2]=r,r=n[t+60>>2],n[i+104>>2]=n[t+56>>2],n[i+108>>2]=r,S0(A,i+112|0,i+96|0),r=n[i+204>>2],n[t+56>>2]=n[i+200>>2],n[t+60>>2]=r,r=n[i+196>>2],n[t+48>>2]=n[i+192>>2],n[t+52>>2]=r,r=n[t+20>>2],n[i+80>>2]=n[t+16>>2],n[i+84>>2]=r,r=n[t+28>>2],n[i+88>>2]=n[t+24>>2],n[i+92>>2]=r,r=n[t+36>>2],n[i+64>>2]=n[t+32>>2],n[i+68>>2]=r,r=n[t+44>>2],n[i+72>>2]=n[t+40>>2],n[i+76>>2]=r,S0(A,i+80|0,i- -64|0),r=n[i+204>>2],n[t+40>>2]=n[i+200>>2],n[t+44>>2]=r,r=n[i+196>>2],n[t+32>>2]=n[i+192>>2],n[t+36>>2]=r,r=n[t+4>>2],n[i+48>>2]=n[t>>2],n[i+52>>2]=r,r=n[t+12>>2],n[i+56>>2]=n[t+8>>2],n[i+60>>2]=r,r=n[t+20>>2],n[i+32>>2]=n[t+16>>2],n[i+36>>2]=r,r=n[t+28>>2],n[i+40>>2]=n[t+24>>2],n[i+44>>2]=r,S0(A,i+48|0,i+32|0),r=n[i+204>>2],n[t+24>>2]=n[i+200>>2],n[t+28>>2]=r,r=n[i+196>>2],n[t+16>>2]=n[i+192>>2],n[t+20>>2]=r,r=n[i+212>>2],n[i+16>>2]=n[i+208>>2],n[i+20>>2]=r,r=n[i+220>>2],n[i+24>>2]=n[i+216>>2],n[i+28>>2]=r,r=n[t+4>>2],n[i>>2]=n[t>>2],n[i+4>>2]=r,r=n[t+12>>2],n[i+8>>2]=n[t+8>>2],n[i+12>>2]=r,S0(A,i+16|0,i),l=n[i+192>>2],A=n[i+196>>2],r=n[i+200>>2],f=j^n[i+204>>2],n[t+12>>2]=f,g=r^v,n[t+8>>2]=g,T=A^y,n[t+4>>2]=T,m=B^l,n[t>>2]=m,u=u+1|0,(u|0)!=7;);r:{A:{n:{if(r=e-16|0,r){if((r|0)==16)break n;break A}M=n[t+16>>2],C=n[t+48>>2],G=n[t+32>>2],d=n[t+80>>2],X=n[t- -64>>2],o=n[t+20>>2],j=n[t+52>>2],v=n[t+36>>2],y=n[t+84>>2],B=n[t+68>>2],l=n[t+24>>2],u=n[t+56>>2],A=n[t+40>>2],r=n[t+88>>2],e=n[t+72>>2],t=f^(n[t+28>>2]^(n[t+60>>2]^(n[t+44>>2]^(n[t+92>>2]^n[t+76>>2])))),h[_+12|0]=t,h[_+13|0]=t>>>8,h[_+14|0]=t>>>16,h[_+15|0]=t>>>24,e=g^(e^r^A^u^l),h[_+8|0]=e,h[_+9|0]=e>>>8,h[_+10|0]=e>>>16,h[_+11|0]=e>>>24,e=T^(o^(j^(y^B^v))),h[_+4|0]=e,h[_+5|0]=e>>>8,h[_+6|0]=e>>>16,h[_+7|0]=e>>>24,e=m^(M^(C^(G^(d^X)))),h[_|0]=e,h[_+1|0]=e>>>8,h[_+2|0]=e>>>16,h[_+3|0]=e>>>24;break r}B=n[t+32>>2],l=n[t+16>>2],u=n[t+36>>2],A=n[t+20>>2],r=n[t+40>>2],e=n[t+24>>2],y=f^(n[t+44>>2]^n[t+28>>2]),h[_+12|0]=y,h[_+13|0]=y>>>8,h[_+14|0]=y>>>16,h[_+15|0]=y>>>24,e=g^(e^r),h[_+8|0]=e,h[_+9|0]=e>>>8,h[_+10|0]=e>>>16,h[_+11|0]=e>>>24,e=T^(A^u),h[_+4|0]=e,h[_+5|0]=e>>>8,h[_+6|0]=e>>>16,h[_+7|0]=e>>>24,e=m^(B^l),h[_|0]=e,h[_+1|0]=e>>>8,h[_+2|0]=e>>>16,h[_+3|0]=e>>>24,j=n[t+48>>2],v=n[t+80>>2],y=n[t- -64>>2],B=n[t+52>>2],l=n[t+84>>2],u=n[t+68>>2],A=n[t+56>>2],r=n[t+88>>2],e=n[t+72>>2],t=n[t+60>>2]^(n[t+92>>2]^n[t+76>>2]),h[_+28|0]=t,h[_+29|0]=t>>>8,h[_+30|0]=t>>>16,h[_+31|0]=t>>>24,e=A^(e^r),h[_+24|0]=e,h[_+25|0]=e>>>8,h[_+26|0]=e>>>16,h[_+27|0]=e>>>24,e=B^(l^u),h[_+20|0]=e,h[_+21|0]=e>>>8,h[_+22|0]=e>>>16,h[_+23|0]=e>>>24,e=j^(y^v),h[_+16|0]=e,h[_+17|0]=e>>>8,h[_+18|0]=e>>>16,h[_+19|0]=e>>>24;break r}if(!e)break r;B2(_,0,e)}F=i+224|0}function bt(_,e,r,A,t,i){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0,i=i|0;var o=0,y=0,u=0,B=0,l=0,j=0,v=0;if(o=-1,y=A-65|0,!(y>>>0<4294967232|r>>>0>64)){r:{if(!(r&&e)){if((y&255)>>>0>191){A:{if(!t){u=725511199,y=-1694144372,r=-1377402159,e=1359893119;break A}u=(s[t+8|0]|s[t+9|0]<<8|(s[t+10|0]<<16|s[t+11|0]<<24))^725511199,y=(s[t+12|0]|s[t+13|0]<<8|(s[t+14|0]<<16|s[t+15|0]<<24))^-1694144372,r=(s[t|0]|s[t+1|0]<<8|(s[t+2|0]<<16|s[t+3|0]<<24))^-1377402159,e=(s[t+4|0]|s[t+5|0]<<8|(s[t+6|0]<<16|s[t+7|0]<<24))^1359893119}A:{if(!i){B=327033209,i=1541459225,o=-79577749,t=528734635;break A}t=i,B=(s[t+8|0]|s[t+9|0]<<8|(s[t+10|0]<<16|s[t+11|0]<<24))^327033209,i=(s[t+12|0]|s[t+13|0]<<8|(s[t+14|0]<<16|s[t+15|0]<<24))^1541459225,o=(s[t|0]|s[t+1|0]<<8|(s[t+2|0]<<16|s[t+3|0]<<24))^-79577749,t=(s[t+4|0]|s[t+5|0]<<8|(s[t+6|0]<<16|s[t+7|0]<<24))^528734635}B2(_- -64|0,0,293),h[_+56|0]=B,h[_+57|0]=B>>>8,h[_+58|0]=B>>>16,h[_+59|0]=B>>>24,h[_+60|0]=i,h[_+61|0]=i>>>8,h[_+62|0]=i>>>16,h[_+63|0]=i>>>24,h[_+48|0]=o,h[_+49|0]=o>>>8,h[_+50|0]=o>>>16,h[_+51|0]=o>>>24,h[_+52|0]=t,h[_+53|0]=t>>>8,h[_+54|0]=t>>>16,h[_+55|0]=t>>>24,h[_+40|0]=u,h[_+41|0]=u>>>8,h[_+42|0]=u>>>16,h[_+43|0]=u>>>24,h[_+44|0]=y,h[_+45|0]=y>>>8,h[_+46|0]=y>>>16,h[_+47|0]=y>>>24,h[_+32|0]=r,h[_+33|0]=r>>>8,h[_+34|0]=r>>>16,h[_+35|0]=r>>>24,h[_+36|0]=e,h[_+37|0]=e>>>8,h[_+38|0]=e>>>16,h[_+39|0]=e>>>24,h[_+24|0]=241,h[_+25|0]=54,h[_+26|0]=29,h[_+27|0]=95,h[_+28|0]=58,h[_+29|0]=245,h[_+30|0]=79,h[_+31|0]=165,h[_+16|0]=43,h[_+17|0]=248,h[_+18|0]=148,h[_+19|0]=254,h[_+20|0]=114,h[_+21|0]=243,h[_+22|0]=110,h[_+23|0]=60,h[_+8|0]=59,h[_+9|0]=167,h[_+10|0]=202,h[_+11|0]=132,h[_+12|0]=133,h[_+13|0]=174,h[_+14|0]=103,h[_+15|0]=187,e=A^-222443256,h[_|0]=e,h[_+1|0]=e>>>8,h[_+2|0]=e>>>16,h[_+3|0]=e>>>24,h[_+4|0]=103,h[_+5|0]=230,h[_+6|0]=9,h[_+7|0]=106;break r}S2(),c2()}l=F-128|0,F=l;A:{if(!(!e|(A-65&255)>>>0<=191|(r-65&255)>>>0<=191)){n:{if(!t){u=725511199,y=-1694144372,o=-1377402159,t=1359893119;break n}u=(s[t+8|0]|s[t+9|0]<<8|(s[t+10|0]<<16|s[t+11|0]<<24))^725511199,y=(s[t+12|0]|s[t+13|0]<<8|(s[t+14|0]<<16|s[t+15|0]<<24))^-1694144372,o=(s[t|0]|s[t+1|0]<<8|(s[t+2|0]<<16|s[t+3|0]<<24))^-1377402159,t=(s[t+4|0]|s[t+5|0]<<8|(s[t+6|0]<<16|s[t+7|0]<<24))^1359893119}v=o;n:{if(!i){B=327033209,i=1541459225,j=-79577749,o=528734635;break n}o=i,B=(s[o+8|0]|s[o+9|0]<<8|(s[o+10|0]<<16|s[o+11|0]<<24))^327033209,i=(s[o+12|0]|s[o+13|0]<<8|(s[o+14|0]<<16|s[o+15|0]<<24))^1541459225,j=(s[o|0]|s[o+1|0]<<8|(s[o+2|0]<<16|s[o+3|0]<<24))^-79577749,o=(s[o+4|0]|s[o+5|0]<<8|(s[o+6|0]<<16|s[o+7|0]<<24))^528734635}B2(_- -64|0,0,293),h[_+56|0]=B,h[_+57|0]=B>>>8,h[_+58|0]=B>>>16,h[_+59|0]=B>>>24,h[_+60|0]=i,h[_+61|0]=i>>>8,h[_+62|0]=i>>>16,h[_+63|0]=i>>>24,h[_+48|0]=j,h[_+49|0]=j>>>8,h[_+50|0]=j>>>16,h[_+51|0]=j>>>24,h[_+52|0]=o,h[_+53|0]=o>>>8,h[_+54|0]=o>>>16,h[_+55|0]=o>>>24,h[_+40|0]=u,h[_+41|0]=u>>>8,h[_+42|0]=u>>>16,h[_+43|0]=u>>>24,h[_+44|0]=y,h[_+45|0]=y>>>8,h[_+46|0]=y>>>16,h[_+47|0]=y>>>24,h[_+32|0]=v,h[_+33|0]=v>>>8,h[_+34|0]=v>>>16,h[_+35|0]=v>>>24,h[_+36|0]=t,h[_+37|0]=t>>>8,h[_+38|0]=t>>>16,h[_+39|0]=t>>>24,h[_+24|0]=241,h[_+25|0]=54,h[_+26|0]=29,h[_+27|0]=95,h[_+28|0]=58,h[_+29|0]=245,h[_+30|0]=79,h[_+31|0]=165,h[_+16|0]=43,h[_+17|0]=248,h[_+18|0]=148,h[_+19|0]=254,h[_+20|0]=114,h[_+21|0]=243,h[_+22|0]=110,h[_+23|0]=60,h[_+8|0]=59,h[_+9|0]=167,h[_+10|0]=202,h[_+11|0]=132,h[_+12|0]=133,h[_+13|0]=174,h[_+14|0]=103,h[_+15|0]=187,t=(r<<8|A)^-222443256,h[_|0]=t,h[_+1|0]=t>>>8,h[_+2|0]=t>>>16,h[_+3|0]=t>>>24,A=r>>>24^1779033703,h[_+4|0]=A,h[_+5|0]=A>>>8,h[_+6|0]=A>>>16,h[_+7|0]=A>>>24,B2(l,0,128),r&&b0(l,e,r),b0(_+96|0,l,128),h[_+352|0]=128,h[_+353|0]=0,h[_+354|0]=0,h[_+355|0]=0,Y0(l,128),F=l+128|0;break A}S2(),c2()}}o=0}return o|0}function k1(_,e){_=_|0,e=e|0;var r=0,A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0;B=F-704|0,F=B,o=_+80|0,t=n[_+72>>2]>>>3&127,r=o+t|0;r:{if(t>>>0>=112){t=128-t|0,t&&b0(r,39152,t),K6(_,o,B,B+640|0),B2(o,0,112);break r}if(t=112-t|0,!t)break r;b0(r,39152,t)}return t=_- -64|0,A=n[t>>2],r=n[t+4>>2],u=A<<24|(A&65280)<<8,i=A&16711680,t=i>>>8|0,l=i<<24,y=A&-16777216,i=y>>>24|0,n[_+192>>2]=l|y<<8|(((r&255)<<24|A>>>8)&-16777216|((r&16777215)<<8|A>>>24)&16711680|(r>>>8&65280|r>>>24)),r=t|i|u,n[_+196>>2]=r,A=n[_+72>>2],u=A<<24|(A&65280)<<8,i=A&16711680,t=i>>>8|0,r=n[_+76>>2],l=i<<24,y=A&-16777216,i=y>>>24|0,n[_+200>>2]=l|y<<8|(((r&255)<<24|A>>>8)&-16777216|((r&16777215)<<8|A>>>24)&16711680|(r>>>8&65280|r>>>24)),r=t|i|u,n[_+204>>2]=r,K6(_,o,B,B+640|0),A=n[_>>2],y=A<<24|(A&65280)<<8,i=A&16711680,t=i>>>8|0,r=n[_+4>>2],u=i<<24,o=A&-16777216,i=o>>>24|0,r=u|o<<8|(((r&255)<<24|A>>>8)&-16777216|((r&16777215)<<8|A>>>24)&16711680|(r>>>8&65280|r>>>24)),h[e|0]=r,h[e+1|0]=r>>>8,h[e+2|0]=r>>>16,h[e+3|0]=r>>>24,r=t|i|y,t=r|0,h[e+4|0]=t,h[e+5|0]=t>>>8,h[e+6|0]=t>>>16,h[e+7|0]=t>>>24,A=n[_+8>>2],y=A<<24|(A&65280)<<8,i=A&16711680,t=i>>>8|0,r=n[_+12>>2],u=i<<24,o=A&-16777216,i=o>>>24|0,r=u|o<<8|(((r&255)<<24|A>>>8)&-16777216|((r&16777215)<<8|A>>>24)&16711680|(r>>>8&65280|r>>>24)),h[e+8|0]=r,h[e+9|0]=r>>>8,h[e+10|0]=r>>>16,h[e+11|0]=r>>>24,r=t|i|y,t=r|0,h[e+12|0]=t,h[e+13|0]=t>>>8,h[e+14|0]=t>>>16,h[e+15|0]=t>>>24,A=n[_+16>>2],y=A<<24|(A&65280)<<8,i=A&16711680,t=i>>>8|0,r=n[_+20>>2],u=i<<24,o=A&-16777216,i=o>>>24|0,r=u|o<<8|(((r&255)<<24|A>>>8)&-16777216|((r&16777215)<<8|A>>>24)&16711680|(r>>>8&65280|r>>>24)),h[e+16|0]=r,h[e+17|0]=r>>>8,h[e+18|0]=r>>>16,h[e+19|0]=r>>>24,r=t|i|y,t=r|0,h[e+20|0]=t,h[e+21|0]=t>>>8,h[e+22|0]=t>>>16,h[e+23|0]=t>>>24,A=n[_+24>>2],y=A<<24|(A&65280)<<8,i=A&16711680,t=i>>>8|0,r=n[_+28>>2],u=i<<24,o=A&-16777216,i=o>>>24|0,r=u|o<<8|(((r&255)<<24|A>>>8)&-16777216|((r&16777215)<<8|A>>>24)&16711680|(r>>>8&65280|r>>>24)),h[e+24|0]=r,h[e+25|0]=r>>>8,h[e+26|0]=r>>>16,h[e+27|0]=r>>>24,r=t|i|y,t=r|0,h[e+28|0]=t,h[e+29|0]=t>>>8,h[e+30|0]=t>>>16,h[e+31|0]=t>>>24,A=n[_+32>>2],y=A<<24|(A&65280)<<8,i=A&16711680,t=i>>>8|0,r=n[_+36>>2],u=i<<24,o=A&-16777216,i=o>>>24|0,r=u|o<<8|(((r&255)<<24|A>>>8)&-16777216|((r&16777215)<<8|A>>>24)&16711680|(r>>>8&65280|r>>>24)),h[e+32|0]=r,h[e+33|0]=r>>>8,h[e+34|0]=r>>>16,h[e+35|0]=r>>>24,r=t|i|y,t=r|0,h[e+36|0]=t,h[e+37|0]=t>>>8,h[e+38|0]=t>>>16,h[e+39|0]=t>>>24,A=n[_+40>>2],y=A<<24|(A&65280)<<8,i=A&16711680,t=i>>>8|0,r=n[_+44>>2],u=i<<24,o=A&-16777216,i=o>>>24|0,r=u|o<<8|(((r&255)<<24|A>>>8)&-16777216|((r&16777215)<<8|A>>>24)&16711680|(r>>>8&65280|r>>>24)),h[e+40|0]=r,h[e+41|0]=r>>>8,h[e+42|0]=r>>>16,h[e+43|0]=r>>>24,r=t|i|y,t=r|0,h[e+44|0]=t,h[e+45|0]=t>>>8,h[e+46|0]=t>>>16,h[e+47|0]=t>>>24,A=n[_+48>>2],y=A<<24|(A&65280)<<8,i=A&16711680,t=i>>>8|0,r=n[_+52>>2],u=i<<24,o=A&-16777216,i=o>>>24|0,r=u|o<<8|(((r&255)<<24|A>>>8)&-16777216|((r&16777215)<<8|A>>>24)&16711680|(r>>>8&65280|r>>>24)),h[e+48|0]=r,h[e+49|0]=r>>>8,h[e+50|0]=r>>>16,h[e+51|0]=r>>>24,r=t|i|y,t=r|0,h[e+52|0]=t,h[e+53|0]=t>>>8,h[e+54|0]=t>>>16,h[e+55|0]=t>>>24,A=n[_+56>>2],y=A<<24|(A&65280)<<8,i=A&16711680,t=i>>>8|0,r=e,u=i<<24,o=A&-16777216,i=o>>>24|0,e=n[_+60>>2],e=u|o<<8|(((e&255)<<24|A>>>8)&-16777216|((e&16777215)<<8|A>>>24)&16711680|(e>>>8&65280|e>>>24)),h[r+56|0]=e,h[r+57|0]=e>>>8,h[r+58|0]=e>>>16,h[r+59|0]=e>>>24,e=t|i|y,e=e|0,h[r+60|0]=e,h[r+61|0]=e>>>8,h[r+62|0]=e>>>16,h[r+63|0]=e>>>24,Y0(B,704),Y0(_,208),F=B+704|0,0}function mA(_){var e=0,r=0,A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0;for(e=F-2048|0,F=e,u=e+640|0,L2(u,_),r=n[_+36>>2],n[e+352>>2]=n[_+32>>2],n[e+356>>2]=r,r=n[_+28>>2],n[e+344>>2]=n[_+24>>2],n[e+348>>2]=r,r=n[_+20>>2],n[e+336>>2]=n[_+16>>2],n[e+340>>2]=r,r=n[_+12>>2],n[e+328>>2]=n[_+8>>2],n[e+332>>2]=r,r=n[_+4>>2],n[e+320>>2]=n[_>>2],n[e+324>>2]=r,r=n[_+44>>2],n[e+360>>2]=n[_+40>>2],n[e+364>>2]=r,r=n[_+52>>2],n[e+368>>2]=n[_+48>>2],n[e+372>>2]=r,r=n[_+60>>2],n[e+376>>2]=n[_+56>>2],n[e+380>>2]=r,A=_- -64|0,r=n[A+4>>2],n[e+384>>2]=n[A>>2],n[e+388>>2]=r,r=n[_+76>>2],n[e+392>>2]=n[_+72>>2],n[e+396>>2]=r,r=n[_+84>>2],n[e+400>>2]=n[_+80>>2],n[e+404>>2]=r,r=n[_+92>>2],n[e+408>>2]=n[_+88>>2],n[e+412>>2]=r,r=n[_+100>>2],n[e+416>>2]=n[_+96>>2],n[e+420>>2]=r,r=n[_+108>>2],n[e+424>>2]=n[_+104>>2],n[e+428>>2]=r,r=n[_+116>>2],n[e+432>>2]=n[_+112>>2],n[e+436>>2]=r,t=e+480|0,A=e+320|0,A1(t,A),r=e+160|0,i=e+600|0,r0(r,t,i),o=e+520|0,y=e+560|0,r0(e+200|0,o,y),r0(e+240|0,y,i),r0(e+280|0,t,o),O2(t,r,u),r0(A,t,i),j=e+360|0,r0(j,o,y),v=e+400|0,r0(v,y,i),f=e+440|0,r0(f,t,o),_=e+800|0,L2(_,A),O2(t,r,_),r0(A,t,i),r0(j,o,y),r0(v,y,i),r0(f,t,o),_=e+960|0,L2(_,A),O2(t,r,_),r0(A,t,i),r0(j,o,y),r0(v,y,i),r0(f,t,o),_=e+1120|0,L2(_,A),O2(t,r,_),r0(A,t,i),r0(j,o,y),r0(v,y,i),r0(f,t,o),_=e+1280|0,L2(_,A),O2(t,r,_),r0(A,t,i),r0(j,o,y),r0(v,y,i),r0(f,t,o),_=e+1440|0,L2(_,A),O2(t,r,_),r0(A,t,i),r0(j,o,y),r0(v,y,i),r0(f,t,o),_=e+1600|0,L2(_,A),O2(t,r,_),r0(A,t,i),r0(j,o,y),r0(v,y,i),r0(f,t,o),L2(e+1760|0,A),n[e+32>>2]=0,n[e+36>>2]=0,n[e+24>>2]=0,n[e+28>>2]=0,n[e+16>>2]=0,n[e+20>>2]=0,n[e+8>>2]=0,n[e+12>>2]=0,n[e>>2]=0,n[e+4>>2]=0,n[e+44>>2]=0,n[e+48>>2]=0,n[e+40>>2]=1,n[e+52>>2]=0,n[e+56>>2]=0,n[e+60>>2]=0,n[e+64>>2]=0,n[e+68>>2]=0,n[e+72>>2]=0,n[e+76>>2]=0,n[e+80>>2]=1,B2(e+84|0,0,76),t=e+120|0,B=e+2008|0,l=e+1968|0,u=e+80|0,A=e+40|0,_=252;;){r=n[e+36>>2],n[e+1960>>2]=n[e+32>>2],n[e+1964>>2]=r,r=n[e+28>>2],n[e+1952>>2]=n[e+24>>2],n[e+1956>>2]=r,r=n[e+20>>2],n[e+1944>>2]=n[e+16>>2],n[e+1948>>2]=r,r=n[e+12>>2],n[e+1936>>2]=n[e+8>>2],n[e+1940>>2]=r,r=n[e+4>>2],n[e+1928>>2]=n[e>>2],n[e+1932>>2]=r,r=n[A+36>>2],n[l+32>>2]=n[A+32>>2],n[l+36>>2]=r,r=n[A+28>>2],n[l+24>>2]=n[A+24>>2],n[l+28>>2]=r,r=n[A+20>>2],n[l+16>>2]=n[A+16>>2],n[l+20>>2]=r,r=n[A+12>>2],n[l+8>>2]=n[A+8>>2],n[l+12>>2]=r,r=n[A+4>>2],n[l>>2]=n[A>>2],n[l+4>>2]=r,r=n[u+36>>2],n[B+32>>2]=n[u+32>>2],n[B+36>>2]=r,r=n[u+28>>2],n[B+24>>2]=n[u+24>>2],n[B+28>>2]=r,r=n[u+20>>2],n[B+16>>2]=n[u+16>>2],n[B+20>>2]=r,r=n[u+12>>2],n[B+8>>2]=n[u+8>>2],n[B+12>>2]=r,r=n[u+4>>2],n[B>>2]=n[u>>2],n[B+4>>2]=r,r=_,T=h[_+33712|0],g=e+480|0,A1(g,e+1928|0);r:{if((T|0)>0){_=e+320|0,r0(_,g,i),r0(j,o,y),r0(v,y,i),r0(f,g,o),O2(g,_,(e+640|0)+E0((T&254)>>>1|0,160)|0);break r}if((T|0)>=0)break r;_=e+320|0,g=e+480|0,r0(_,g,i),r0(j,o,y),r0(v,y,i),r0(f,g,o),$6(g,_,(e+640|0)+E0((0-T&254)>>>1|0,160)|0)}if(m=e+480|0,r0(e,m,i),r0(A,o,y),r0(u,y,i),r0(t,m,o),_=r-1|0,!r)break}return M=n[e+40>>2],C=n[e+80>>2],G=n[e+44>>2],i=n[e+84>>2],o=n[e+48>>2],y=n[e+88>>2],B=n[e+52>>2],l=n[e+92>>2],j=n[e+56>>2],v=n[e+96>>2],f=n[e+60>>2],T=n[e+100>>2],g=n[e+64>>2],t=n[e+104>>2],u=n[e+68>>2],A=n[e+108>>2],r=n[e+72>>2],_=n[e+112>>2],n[e+676>>2]=n[e+76>>2]-n[e+116>>2],n[e+672>>2]=r-_,n[e+668>>2]=u-A,n[e+664>>2]=g-t,n[e+660>>2]=f-T,n[e+656>>2]=j-v,n[e+652>>2]=B-l,n[e+648>>2]=o-y,n[e+644>>2]=G-i,n[e+640>>2]=M-C,G2(m,e),r=n1(m,32),G2(m,e+640|0),_=n1(m,32),F=e+2048|0,_&r}function V6(_,e){var r=0,A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0;r=F-288|0,F=r,i=s[_+28|0]|s[_+29|0]<<8|(s[_+30|0]<<16|s[_+31|0]<<24),o=s[_+24|0]|s[_+25|0]<<8|(s[_+26|0]<<16|s[_+27|0]<<24),y=s[_+20|0]|s[_+21|0]<<8|(s[_+22|0]<<16|s[_+23|0]<<24),u=s[_+16|0]|s[_+17|0]<<8|(s[_+18|0]<<16|s[_+19|0]<<24),B=s[_+4|0]|s[_+5|0]<<8|(s[_+6|0]<<16|s[_+7|0]<<24),l=s[_+8|0]|s[_+9|0]<<8|(s[_+10|0]<<16|s[_+11|0]<<24),j=s[_+12|0]|s[_+13|0]<<8|(s[_+14|0]<<16|s[_+15|0]<<24),v=s[_|0]|s[_+1|0]<<8|(s[_+2|0]<<16|s[_+3|0]<<24),_=n[e+124>>2],n[r+280>>2]=n[e+120>>2],n[r+284>>2]=_,_=n[e+116>>2],n[r+272>>2]=n[e+112>>2],n[r+276>>2]=_,_=n[e+100>>2],n[r+240>>2]=n[e+96>>2],n[r+244>>2]=_,_=n[e+108>>2],n[r+248>>2]=n[e+104>>2],n[r+252>>2]=_,_=n[e+116>>2],n[r+224>>2]=n[e+112>>2],n[r+228>>2]=_,_=n[e+124>>2],n[r+232>>2]=n[e+120>>2],n[r+236>>2]=_,_=r+256|0,S0(_,r+240|0,r+224|0),t=n[r+268>>2],n[e+120>>2]=n[r+264>>2],n[e+124>>2]=t,t=n[r+260>>2],n[e+112>>2]=n[r+256>>2],n[e+116>>2]=t,t=n[e+84>>2],n[r+208>>2]=n[e+80>>2],n[r+212>>2]=t,t=n[e+92>>2],n[r+216>>2]=n[e+88>>2],n[r+220>>2]=t,t=n[e+100>>2],n[r+192>>2]=n[e+96>>2],n[r+196>>2]=t,t=n[e+108>>2],n[r+200>>2]=n[e+104>>2],n[r+204>>2]=t,S0(_,r+208|0,r+192|0),t=n[r+268>>2],n[e+104>>2]=n[r+264>>2],n[e+108>>2]=t,t=n[r+260>>2],n[e+96>>2]=n[r+256>>2],n[e+100>>2]=t,t=e- -64|0,A=n[t+4>>2],n[r+176>>2]=n[t>>2],n[r+180>>2]=A,A=n[e+76>>2],n[r+184>>2]=n[e+72>>2],n[r+188>>2]=A,A=n[e+84>>2],n[r+160>>2]=n[e+80>>2],n[r+164>>2]=A,A=n[e+92>>2],n[r+168>>2]=n[e+88>>2],n[r+172>>2]=A,S0(_,r+176|0,r+160|0),A=n[r+268>>2],n[e+88>>2]=n[r+264>>2],n[e+92>>2]=A,A=n[r+260>>2],n[e+80>>2]=n[r+256>>2],n[e+84>>2]=A,A=n[e+52>>2],n[r+144>>2]=n[e+48>>2],n[r+148>>2]=A,A=n[e+60>>2],n[r+152>>2]=n[e+56>>2],n[r+156>>2]=A,A=n[t+4>>2],n[r+128>>2]=n[t>>2],n[r+132>>2]=A,A=n[e+76>>2],n[r+136>>2]=n[e+72>>2],n[r+140>>2]=A,S0(_,r+144|0,r+128|0),A=n[r+268>>2],n[e+72>>2]=n[r+264>>2],n[e+76>>2]=A,A=n[r+260>>2],n[t>>2]=n[r+256>>2],n[t+4>>2]=A,A=n[e+36>>2],n[r+112>>2]=n[e+32>>2],n[r+116>>2]=A,A=n[e+44>>2],n[r+120>>2]=n[e+40>>2],n[r+124>>2]=A,A=n[e+52>>2],n[r+96>>2]=n[e+48>>2],n[r+100>>2]=A,A=n[e+60>>2],n[r+104>>2]=n[e+56>>2],n[r+108>>2]=A,S0(_,r+112|0,r+96|0),A=n[r+268>>2],n[e+56>>2]=n[r+264>>2],n[e+60>>2]=A,A=n[r+260>>2],n[e+48>>2]=n[r+256>>2],n[e+52>>2]=A,A=n[e+20>>2],n[r+80>>2]=n[e+16>>2],n[r+84>>2]=A,A=n[e+28>>2],n[r+88>>2]=n[e+24>>2],n[r+92>>2]=A,A=n[e+36>>2],n[r+64>>2]=n[e+32>>2],n[r+68>>2]=A,A=n[e+44>>2],n[r+72>>2]=n[e+40>>2],n[r+76>>2]=A,S0(_,r+80|0,r- -64|0),A=n[r+268>>2],n[e+40>>2]=n[r+264>>2],n[e+44>>2]=A,A=n[r+260>>2],n[e+32>>2]=n[r+256>>2],n[e+36>>2]=A,A=n[e+4>>2],n[r+48>>2]=n[e>>2],n[r+52>>2]=A,A=n[e+12>>2],n[r+56>>2]=n[e+8>>2],n[r+60>>2]=A,A=n[e+20>>2],n[r+32>>2]=n[e+16>>2],n[r+36>>2]=A,A=n[e+28>>2],n[r+40>>2]=n[e+24>>2],n[r+44>>2]=A,S0(_,r+48|0,r+32|0),A=n[r+268>>2],n[e+24>>2]=n[r+264>>2],n[e+28>>2]=A,A=n[r+260>>2],n[e+16>>2]=n[r+256>>2],n[e+20>>2]=A,A=n[r+276>>2],n[r+16>>2]=n[r+272>>2],n[r+20>>2]=A,A=n[r+284>>2],n[r+24>>2]=n[r+280>>2],n[r+28>>2]=A,A=n[e+4>>2],n[r>>2]=n[e>>2],n[r+4>>2]=A,A=n[e+12>>2],n[r+8>>2]=n[e+8>>2],n[r+12>>2]=A,S0(_,r+16|0,r),_=n[r+268>>2],n[e+8>>2]=n[r+264>>2],n[e+12>>2]=_,_=n[r+260>>2],n[e>>2]=n[r+256>>2],n[e+4>>2]=_,n[e+12>>2]=n[e+12>>2]^j,n[e+8>>2]=n[e+8>>2]^l,n[e+4>>2]=n[e+4>>2]^B,n[e>>2]=n[e>>2]^v,n[t>>2]=n[t>>2]^u,n[e+68>>2]=n[e+68>>2]^y,n[e+72>>2]=n[e+72>>2]^o,n[e+76>>2]=n[e+76>>2]^i,F=r+288|0}function Nr(_,e){var r=0,A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0;for(A=F-480|0,F=A,r=s[e|0],h[A+289|0]=r>>>4,h[A+288|0]=r&15,r=s[e+1|0],h[A+291|0]=r>>>4,h[A+290|0]=r&15,r=s[e+2|0],h[A+293|0]=r>>>4,h[A+292|0]=r&15,r=s[e+3|0],h[A+295|0]=r>>>4,h[A+294|0]=r&15,r=s[e+4|0],h[A+297|0]=r>>>4,h[A+296|0]=r&15,r=s[e+5|0],h[A+299|0]=r>>>4,h[A+298|0]=r&15,r=s[e+6|0],h[A+301|0]=r>>>4,h[A+300|0]=r&15,r=s[e+7|0],h[A+303|0]=r>>>4,h[A+302|0]=r&15,r=s[e+8|0],h[A+305|0]=r>>>4,h[A+304|0]=r&15,r=s[e+9|0],h[A+307|0]=r>>>4,h[A+306|0]=r&15,r=s[e+10|0],h[A+309|0]=r>>>4,h[A+308|0]=r&15,r=s[e+11|0],h[A+311|0]=r>>>4,h[A+310|0]=r&15,r=s[e+12|0],h[A+313|0]=r>>>4,h[A+312|0]=r&15,r=s[e+13|0],h[A+315|0]=r>>>4,h[A+314|0]=r&15,r=s[e+14|0],h[A+317|0]=r>>>4,h[A+316|0]=r&15,r=s[e+15|0],h[A+319|0]=r>>>4,h[A+318|0]=r&15,r=s[e+16|0],h[A+321|0]=r>>>4,h[A+320|0]=r&15,r=s[e+17|0],h[A+323|0]=r>>>4,h[A+322|0]=r&15,r=s[e+18|0],h[A+325|0]=r>>>4,h[A+324|0]=r&15,r=s[e+19|0],h[A+327|0]=r>>>4,h[A+326|0]=r&15,r=s[e+20|0],h[A+329|0]=r>>>4,h[A+328|0]=r&15,r=s[e+21|0],h[A+331|0]=r>>>4,h[A+330|0]=r&15,r=s[e+22|0],h[A+333|0]=r>>>4,h[A+332|0]=r&15,r=s[e+23|0],h[A+335|0]=r>>>4,h[A+334|0]=r&15,r=s[e+24|0],h[A+337|0]=r>>>4,h[A+336|0]=r&15,r=s[e+25|0],h[A+339|0]=r>>>4,h[A+338|0]=r&15,r=s[e+26|0],h[A+341|0]=r>>>4,h[A+340|0]=r&15,r=s[e+27|0],h[A+343|0]=r>>>4,h[A+342|0]=r&15,r=s[e+28|0],h[A+345|0]=r>>>4,h[A+344|0]=r&15,r=s[e+29|0],h[A+347|0]=r>>>4,h[A+346|0]=r&15,r=s[e+30|0],h[A+349|0]=r>>>4,h[A+348|0]=r&15,e=s[e+31|0],h[A+351|0]=e>>>4,h[A+350|0]=e&15,e=0;t=(A+288|0)+i|0,e=s[t|0]+e|0,r=e+8|0,h[t|0]=e-(r&240),e=s[t+1|0]+(r<<24>>24>>4)|0,r=e+8|0,h[t+1|0]=e-(r&240),e=s[t+2|0]+(r<<24>>24>>4)|0,r=e+8|0,h[t+2|0]=e-(r&240),e=r<<24>>24>>4,i=i+3|0,(i|0)!=63;);for(h[A+351|0]=s[A+351|0]+e,n[_+32>>2]=0,n[_+36>>2]=0,n[_+24>>2]=0,n[_+28>>2]=0,n[_+16>>2]=0,n[_+20>>2]=0,n[_+8>>2]=0,n[_+12>>2]=0,n[_>>2]=0,n[_+4>>2]=0,n[_+44>>2]=0,n[_+48>>2]=0,i=_+40|0,n[i>>2]=1,n[_+52>>2]=0,n[_+56>>2]=0,n[_+60>>2]=0,n[_+64>>2]=0,n[_+68>>2]=0,n[_+72>>2]=0,n[_+76>>2]=0,n[_+80>>2]=1,B2(_+84|0,0,76),j=_+120|0,r=_+80|0,o=A+208|0,l=A+168|0,y=A+248|0,e=1;t=A+8|0,U4(t,e>>>1|0,h[(A+288|0)+e|0]),u=A+128|0,CA(u,_,t),r0(_,u,y),r0(i,l,o),r0(r,o,y),r0(j,u,l),t=e>>>0<62,e=e+2|0,!!t;);for(e=n[_+36>>2],n[A+392>>2]=n[_+32>>2],n[A+396>>2]=e,e=n[_+28>>2],n[A+384>>2]=n[_+24>>2],n[A+388>>2]=e,e=n[_+20>>2],n[A+376>>2]=n[_+16>>2],n[A+380>>2]=e,e=n[_+12>>2],n[A+368>>2]=n[_+8>>2],n[A+372>>2]=e,e=n[_+4>>2],n[A+360>>2]=n[_>>2],n[A+364>>2]=e,e=n[i+4>>2],n[A+400>>2]=n[i>>2],n[A+404>>2]=e,e=n[i+12>>2],n[A+408>>2]=n[i+8>>2],n[A+412>>2]=e,e=n[i+20>>2],n[A+416>>2]=n[i+16>>2],n[A+420>>2]=e,e=n[i+28>>2],n[A+424>>2]=n[i+24>>2],n[A+428>>2]=e,e=n[i+36>>2],n[A+432>>2]=n[i+32>>2],n[A+436>>2]=e,e=n[r+4>>2],n[A+440>>2]=n[r>>2],n[A+444>>2]=e,e=n[r+12>>2],n[A+448>>2]=n[r+8>>2],n[A+452>>2]=e,e=n[r+20>>2],n[A+456>>2]=n[r+16>>2],n[A+460>>2]=e,e=n[r+28>>2],n[A+464>>2]=n[r+24>>2],n[A+468>>2]=e,e=n[r+36>>2],n[A+472>>2]=n[r+32>>2],n[A+476>>2]=e,B=A+360|0,A1(u,B),r0(B,u,y),t=A+400|0,r0(t,l,o),e=A+440|0,r0(e,o,y),A1(u,B),r0(B,u,y),r0(t,l,o),r0(e,o,y),A1(u,B),r0(B,u,y),r0(t,l,o),r0(e,o,y),A1(u,B),r0(_,u,y),r0(i,l,o),r0(r,o,y),r0(j,u,l),e=0;t=A+8|0,U4(t,e>>>1|0,h[(A+288|0)+e|0]),B=A+128|0,CA(B,_,t),r0(_,B,y),r0(i,l,o),r0(r,o,y),r0(j,B,l),t=e>>>0<62,e=e+2|0,!!t;);F=A+480|0}function m4(_,e,r,A,t){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0;var i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0;if(A=s[t|0]|s[t+1|0]<<8|(s[t+2|0]<<16|s[t+3|0]<<24),y=A^1886610805,i=s[t+4|0]|s[t+5|0]<<8|(s[t+6|0]<<16|s[t+7|0]<<24),o=i^1936682341,u=A^1852142177,B=i^1819895653,A=s[t+8|0]|s[t+9|0]<<8|(s[t+10|0]<<16|s[t+11|0]<<24),i=A^1852075885,t=s[t+12|0]|s[t+13|0]<<8|(s[t+14|0]<<16|s[t+15|0]<<24),j=t^1685025377,l=A^2037671283,v=t^1952801890,A=r&-8,A){for(A=e+A|0;T=s[e|0]|s[e+1|0]<<8|(s[e+2|0]<<16|s[e+3|0]<<24),t=l^T,u=u+t|0,G=s[e+4|0]|s[e+5|0]<<8|(s[e+6|0]<<16|s[e+7|0]<<24),v=v^G,B=B+v|0,B=t>>>0>u>>>0?B+1|0:B,o=o+j|0,g=o+1|0,l=o,o=i+y|0,l=y>>>0>o>>>0?g:l,i=D(i,j,13)^o,y=u+i|0,f=p^l,j=B+f|0,f=D(i,f,17)^y,j=i>>>0>y>>>0?j+1|0:j,m=j^p,C=D(f,m,13),M=p,t=D(t,v,16),i=B^p,B=t^u,u=D(o,l,32),t=B+u|0,o=p+i|0,l=t>>>0<u>>>0?o+1|0:o,u=m+l|0,g=u+1|0,o=u,u=t+f|0,o=u>>>0<t>>>0?g:o,v=u^C,f=o^M,m=D(v,f,17),C=p,i=D(B,i,21),B=l^p,l=t^i,y=D(y,j,32),t=l+y|0,i=p+B|0,M=t>>>0<y>>>0?i+1|0:i,y=M+f|0,g=y+1|0,i=y,y=t+v|0,f=y>>>0<t>>>0?g:i,i=y^m,j=f^C,B=D(l,B,16),l=M^p,v=l,t=t^B,B=D(t,l,21),m=p,u=D(u,o,32),t=u+t|0,l=t^B,o=p+v|0,o=t>>>0<u>>>0?o+1|0:o,v=o^m,u=D(y,f,32),B=p,y=t^T,o=o^G,e=e+8|0,(A|0)!=(e|0););e=A}t=r<<24,A=0;r:switch((r&7)-1|0){case 6:t=t|s[e+6|0]<<16;case 5:t=t|s[e+5|0]<<8;case 4:t=t|s[e+4|0];case 3:A=s[e+3|0]<<24;case 2:A=A|s[e+2|0]<<16;case 1:A=A|s[e+1|0]<<8;case 0:A=s[e|0]|A;break;default:break r}return e=A^l,r=t^v,l=D(e,r,16),r=r+B|0,e=e+u|0,r=e>>>0<u>>>0?r+1|0:r,B=e^l,l=r^p,v=D(B,l,21),f=p,u=o+j|0,g=u+1|0,o=u,u=i+y|0,y=y>>>0>u>>>0?g:o,o=y,T=D(u,y,32),y=B+T|0,B=v^y,l=p+l|0,l=y>>>0<T>>>0?l+1|0:l,v=f^l,f=D(B,v,16),T=p,i=D(i,j,13)^u,e=e+i|0,j=p^o,r=j+r|0,u=e>>>0<i>>>0?r+1|0:r,o=D(e,u,32),r=B+o|0,B=f^r,v=p+v|0,o=r>>>0<o>>>0?v+1|0:v,v=o^T,f=D(B,v,21),T=p,j=D(i,j,17)^e,i=j,e=y+i|0,u=p^u,y=u+l|0,y=e>>>0<i>>>0?y+1|0:y,l=y,i=f,f=D(e,y,32),y=B+f|0,i=i^y,B=p+v|0,B=y>>>0<f>>>0?B+1|0:B,v=B^T,f=D(i,v,16),T=p,g=r,u=D(j,u,13)^e,r=u,e=g+r|0,g=o,o=l^p,j=g+o|0,r=e>>>0<r>>>0?j+1|0:j,l=r,r=D(e,r,32),j=v+p|0,r=i+(r^255)|0,v=r>>>0<i>>>0?j+1|0:j,i=T^v,j=r^f,f=D(j,i,21),T=p,u=D(u,o,17)^e,A=A^y,e=u+A|0,o=l^p,t=o+(t^B)|0,A=e>>>0<A>>>0?t+1|0:t,B=A,A=D(e,A,32),t=i+p|0,A=A+j|0,i=A>>>0<j>>>0?t+1|0:t,t=i^T,y=A^f,j=D(y,t,16),l=p,u=D(u,o,13)^e,e=r+u|0,o=p^B,B=v+o|0,r=e>>>0<r>>>0?B+1|0:B,B=r,r=D(e,r,32),g=l,t=t+p|0,r=r+y|0,l=r>>>0<y>>>0?t+1|0:t,t=g^l,y=r^j,j=D(y,t,21),v=p,u=D(u,o,17),o=B^p,i=i+o|0,f=i+1|0,g=i,B=A,i=e^u,A=A+i|0,e=B>>>0>A>>>0?f:g,u=e,e=D(A,e,32),t=t+p|0,e=e+y|0,B=e>>>0<y>>>0?t+1|0:t,t=B^v,y=e^j,j=D(y,t,16),v=p,i=D(i,o,13),u=u^p,o=l+u|0,i=A^i,A=r+i|0,r=A>>>0<r>>>0?o+1|0:o,o=r,r=D(A,r,32),t=t+p|0,r=r+y|0,l=r>>>0<y>>>0?t+1|0:t,t=l^v,y=r^j,j=D(y,t,21),v=p,i=D(i,u,17),u=o^p,o=B+u|0,g=o+1|0,B=o,o=A^i,A=e+o|0,i=A>>>0<e>>>0?g:B,e=D(A,i,32),t=t+p|0,e=e+y|0,B=e>>>0<y>>>0?t+1|0:t,t=B^v,y=e^j,j=D(y,t,16),v=p,u=D(o,u,13),i=i^p,o=l+i|0,u=A^u,A=r+u|0,r=A>>>0<r>>>0?o+1|0:o,o=r,r=D(A,r,32),t=t+p|0,r=r+y|0,t=r>>>0<y>>>0?t+1|0:t,y=D(r^j,t^v,21),j=p,A=D(u,i,17)^A,i=o^p,u=D(A,i,13),i=i+B|0,A=e+A|0,e=p^(e>>>0>A>>>0?i+1|0:i),A=A^u,y=D(A,e,17)^y,i=p^j,e=e+t|0,o=e+1|0,t=e,e=r+A|0,r=r>>>0>e>>>0?o:t,e=D(e,r,32)^y^e,h[_|0]=e,h[_+1|0]=e>>>8,h[_+2|0]=e>>>16,h[_+3|0]=e>>>24,e=r^(p^i),h[_+4|0]=e,h[_+5|0]=e>>>8,h[_+6|0]=e>>>16,h[_+7|0]=e>>>24,0}function D4(_,e){var r=0,A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0,x=0,z=0,$=0,J=0,A0=0,n0=0,t0=0,_0=0,s0=0,o0=0,B0=0,u0=0,l0=0;r=F-624|0,F=r,A=r+480|0,N(A,e),r0(A,1632,A),i=n[r+516>>2],n[r+276>>2]=i,o=n[r+512>>2],n[r+272>>2]=o,y=n[r+508>>2],n[r+268>>2]=y,u=n[r+504>>2],n[r+264>>2]=u,B=n[r+500>>2],n[r+260>>2]=B,l=n[r+496>>2],n[r+256>>2]=l,j=n[r+492>>2],n[r+252>>2]=j,v=n[r+488>>2],n[r+248>>2]=v,f=n[r+484>>2],n[r+244>>2]=f,T=n[r+480>>2],n[r+240>>2]=T+1,t=r+240|0,r0(t,t,33968),n[r+468>>2]=i-12055116,n[r+464>>2]=o-18696448,n[r+460>>2]=y-3247719,n[r+456>>2]=u-6275908,n[r+452>>2]=B-8787816,n[r+448>>2]=l+114729,n[r+444>>2]=j+6949391,n[r+440>>2]=v-15372611,n[r+436>>2]=f+13857413,n[r+432>>2]=T-10913610,g=r+192|0,r0(g,A,1584),n[r+228>>2]=0-n[r+228>>2],n[r+224>>2]=0-n[r+224>>2],n[r+220>>2]=0-n[r+220>>2],n[r+216>>2]=0-n[r+216>>2],n[r+212>>2]=0-n[r+212>>2],n[r+208>>2]=0-n[r+208>>2],n[r+204>>2]=0-n[r+204>>2],n[r+200>>2]=0-n[r+200>>2],n[r+196>>2]=0-n[r+196>>2],n[r+192>>2]=n[r+192>>2]^-1,r0(g,g,r+432|0),o0=r+384|0,A=YA(o0,t,g),t=r+336|0,r0(t,o0,e),B0=r+576|0,G2(B0,t),l0=s[r+576|0],x=n[r+420>>2],t=n[r+372>>2],z=n[r+416>>2],m=n[r+368>>2],$=n[r+412>>2],M=n[r+364>>2],J=n[r+408>>2],C=n[r+360>>2],A0=n[r+404>>2],G=n[r+356>>2],n0=n[r+400>>2],d=n[r+352>>2],t0=n[r+396>>2],X=n[r+348>>2],_0=n[r+392>>2],K=n[r+344>>2],s0=n[r+388>>2],O=n[r+340>>2],u0=n[r+384>>2],U=n[r+336>>2],e=A-1|0,n[r+612>>2]=e&i,n[r+608>>2]=e&o,n[r+604>>2]=e&y,n[r+600>>2]=e&u,n[r+596>>2]=e&B,n[r+592>>2]=e&l,n[r+588>>2]=e&j,n[r+584>>2]=e&v,n[r+580>>2]=e&f,n[r+576>>2]=T|0-A,A=0-(l0&1)|0,U=e&(0-(U^A&(U^0-U))^u0)^u0,n[r+384>>2]=U,O=s0^e&(s0^0-(O^A&(O^0-O))),n[r+388>>2]=O,K=_0^e&(_0^0-(K^A&(K^0-K))),n[r+392>>2]=K,X=t0^e&(t0^0-(X^A&(X^0-X))),n[r+396>>2]=X,d=n0^e&(n0^0-(d^A&(d^0-d))),n[r+400>>2]=d,G=A0^e&(A0^0-(G^A&(G^0-G))),n[r+404>>2]=G,C=J^e&(J^0-(C^A&(C^0-C))),n[r+408>>2]=C,M=$^e&($^0-(M^A&(M^0-M))),n[r+412>>2]=M,m=z^e&(z^0-(m^A&(m^0-m))),n[r+416>>2]=m,A=x^e&(x^0-(t^A&(t^0-t))),n[r+420>>2]=A,n[r+564>>2]=i,n[r+560>>2]=o,n[r+556>>2]=y,n[r+552>>2]=u,n[r+548>>2]=B,n[r+544>>2]=l,n[r+540>>2]=j,n[r+536>>2]=v,n[r+532>>2]=f,n[r+528>>2]=T-1,e=r+528|0,r0(e,e,B0),r0(e,e,34016),i=n[r+192>>2],o=n[r+528>>2],y=n[r+196>>2],u=n[r+532>>2],B=n[r+200>>2],l=n[r+536>>2],j=n[r+204>>2],v=n[r+540>>2],f=n[r+208>>2],T=n[r+544>>2],t=n[r+212>>2],x=n[r+548>>2],z=n[r+216>>2],$=n[r+552>>2],J=n[r+220>>2],A0=n[r+556>>2],n0=n[r+224>>2],t0=n[r+560>>2],_0=n[r+228>>2],s0=n[r+564>>2],n[r+180>>2]=A<<1,n[r+176>>2]=m<<1,n[r+172>>2]=M<<1,n[r+168>>2]=C<<1,n[r+164>>2]=G<<1,n[r+160>>2]=d<<1,n[r+156>>2]=X<<1,n[r+152>>2]=K<<1,n[r+148>>2]=O<<1,n[r+144>>2]=U<<1,n[r+564>>2]=s0-_0,n[r+560>>2]=t0-n0,n[r+556>>2]=A0-J,n[r+552>>2]=$-z,n[r+548>>2]=x-t,n[r+544>>2]=T-f,n[r+540>>2]=v-j,n[r+536>>2]=l-B,n[r+532>>2]=u-y,n[r+528>>2]=o-i,A=r+144|0,r0(A,A,g),g=r+96|0,r0(g,e,34064),N(r+288|0,o0),e=n[r+324>>2],n[r+84>>2]=0-e,i=n[r+320>>2],n[r+80>>2]=0-i,o=n[r+316>>2],n[r+76>>2]=0-o,y=n[r+312>>2],n[r+72>>2]=0-y,u=n[r+308>>2],n[r+68>>2]=0-u,B=n[r+304>>2],n[r+64>>2]=0-B,l=n[r+300>>2],n[r+60>>2]=0-l,j=n[r+296>>2],n[r+56>>2]=0-j,v=n[r+292>>2],n[r+52>>2]=0-v,f=n[r+288>>2],n[r+48>>2]=1-f,n[r+36>>2]=e,n[r+32>>2]=i,n[r+28>>2]=o,n[r+24>>2]=y,n[r+20>>2]=u,n[r+16>>2]=B,n[r+12>>2]=l,n[r+8>>2]=j,n[r+4>>2]=v,n[r>>2]=f+1,r0(_,A,r),e=r+48|0,r0(_+40|0,e,g),r0(_+80|0,g,r),r0(_+120|0,A,e),F=r+624|0}function DA(_,e,r){var A=0,t=0,i=0,o=0,y=0,u=0,B=0;o=F+-64|0,F=o;r:{if((r-65&255)>>>0>191){if(i=-1,!(s[_+80|0]|s[_+81|0]<<8|(s[_+82|0]<<16|s[_+83|0]<<24)|(s[_+84|0]|s[_+85|0]<<8|(s[_+86|0]<<16|s[_+87|0]<<24)))){if(y=s[_+352|0]|s[_+353|0]<<8|(s[_+354|0]<<16|s[_+355|0]<<24),y>>>0>=129){if(A=_- -64|0,t=s[A|0]|s[A+1|0]<<8|(s[A+2|0]<<16|s[A+3|0]<<24),i=s[A+4|0]|s[A+5|0]<<8|(s[A+6|0]<<16|s[A+7|0]<<24),u=i,y=t+128|0,i=y>>>0<128?i+1|0:i,h[A|0]=y,h[A+1|0]=y>>>8,h[A+2|0]=y>>>16,h[A+3|0]=y>>>24,h[A+4|0]=i,h[A+5|0]=i>>>8,h[A+6|0]=i>>>16,h[A+7|0]=i>>>24,i=s[_+76|0]|s[_+77|0]<<8|(s[_+78|0]<<16|s[_+79|0]<<24),A=(u|0)==-1&t>>>0>4294967167,t=A+(s[_+72|0]|s[_+73|0]<<8|(s[_+74|0]<<16|s[_+75|0]<<24))|0,i=A>>>0>t>>>0?i+1|0:i,h[_+72|0]=t,h[_+73|0]=t>>>8,h[_+74|0]=t>>>16,h[_+75|0]=t>>>24,h[_+76|0]=i,h[_+77|0]=i>>>8,h[_+78|0]=i>>>16,h[_+79|0]=i>>>24,i=_+96|0,o6(_,i),A=(s[_+352|0]|s[_+353|0]<<8|(s[_+354|0]<<16|s[_+355|0]<<24))-128|0,h[_+352|0]=A,h[_+353|0]=A>>>8,h[_+354|0]=A>>>16,h[_+355|0]=A>>>24,A>>>0>=129)break r;A&&b0(i,_+224|0,A),y=s[_+352|0]|s[_+353|0]<<8|(s[_+354|0]<<16|s[_+355|0]<<24)}A=_- -64|0,i=s[A|0]|s[A+1|0]<<8|(s[A+2|0]<<16|s[A+3|0]<<24),B=s[A+4|0]|s[A+5|0]<<8|(s[A+6|0]<<16|s[A+7|0]<<24),t=B,u=i+y|0,t=u>>>0<y>>>0?t+1|0:t,h[A|0]=u,h[A+1|0]=u>>>8,h[A+2|0]=u>>>16,h[A+3|0]=u>>>24,h[A+4|0]=t,h[A+5|0]=t>>>8,h[A+6|0]=t>>>16,h[A+7|0]=t>>>24,A=(t|0)==(B|0)&i>>>0>u>>>0|t>>>0<B>>>0,i=s[_+76|0]|s[_+77|0]<<8|(s[_+78|0]<<16|s[_+79|0]<<24),t=A+(s[_+72|0]|s[_+73|0]<<8|(s[_+74|0]<<16|s[_+75|0]<<24))|0,i=t>>>0<A>>>0?i+1|0:i,h[_+72|0]=t,h[_+73|0]=t>>>8,h[_+74|0]=t>>>16,h[_+75|0]=t>>>24,h[_+76|0]=i,h[_+77|0]=i>>>8,h[_+78|0]=i>>>16,h[_+79|0]=i>>>24,s[_+356|0]&&(h[_+88|0]=255,h[_+89|0]=255,h[_+90|0]=255,h[_+91|0]=255,h[_+92|0]=255,h[_+93|0]=255,h[_+94|0]=255,h[_+95|0]=255),h[_+80|0]=255,h[_+81|0]=255,h[_+82|0]=255,h[_+83|0]=255,h[_+84|0]=255,h[_+85|0]=255,h[_+86|0]=255,h[_+87|0]=255,A=_+96|0,i=0,t=256-y|0,t&&B2(A+y|0,0,t),o6(_,A),t=s[_+4|0]|s[_+5|0]<<8|(s[_+6|0]<<16|s[_+7|0]<<24),n[o>>2]=s[_|0]|s[_+1|0]<<8|(s[_+2|0]<<16|s[_+3|0]<<24),n[o+4>>2]=t,t=s[_+12|0]|s[_+13|0]<<8|(s[_+14|0]<<16|s[_+15|0]<<24),n[o+8>>2]=s[_+8|0]|s[_+9|0]<<8|(s[_+10|0]<<16|s[_+11|0]<<24),n[o+12>>2]=t,t=s[_+20|0]|s[_+21|0]<<8|(s[_+22|0]<<16|s[_+23|0]<<24),n[o+16>>2]=s[_+16|0]|s[_+17|0]<<8|(s[_+18|0]<<16|s[_+19|0]<<24),n[o+20>>2]=t,t=s[_+28|0]|s[_+29|0]<<8|(s[_+30|0]<<16|s[_+31|0]<<24),n[o+24>>2]=s[_+24|0]|s[_+25|0]<<8|(s[_+26|0]<<16|s[_+27|0]<<24),n[o+28>>2]=t,t=s[_+36|0]|s[_+37|0]<<8|(s[_+38|0]<<16|s[_+39|0]<<24),n[o+32>>2]=s[_+32|0]|s[_+33|0]<<8|(s[_+34|0]<<16|s[_+35|0]<<24),n[o+36>>2]=t,t=s[_+44|0]|s[_+45|0]<<8|(s[_+46|0]<<16|s[_+47|0]<<24),n[o+40>>2]=s[_+40|0]|s[_+41|0]<<8|(s[_+42|0]<<16|s[_+43|0]<<24),n[o+44>>2]=t,t=s[_+52|0]|s[_+53|0]<<8|(s[_+54|0]<<16|s[_+55|0]<<24),n[o+48>>2]=s[_+48|0]|s[_+49|0]<<8|(s[_+50|0]<<16|s[_+51|0]<<24),n[o+52>>2]=t,t=s[_+60|0]|s[_+61|0]<<8|(s[_+62|0]<<16|s[_+63|0]<<24),n[o+56>>2]=s[_+56|0]|s[_+57|0]<<8|(s[_+58|0]<<16|s[_+59|0]<<24),n[o+60>>2]=t,r&&b0(e,o,r),Y0(_,64),Y0(A,256)}return F=o- -64|0,i}S2(),c2()}F6(1386,1234,306,1142),c2()}function M4(_,e,r){_=_|0,e=e|0,r=r|0;var A=0,t=0,i=0;A=F-192|0,F=A,n[A+128>>2]=0,n[A+132>>2]=0,n[A+136>>2]=0,n[A+140>>2]=0,n[A+144>>2]=0,n[A+148>>2]=0,n[A+152>>2]=0,n[A+156>>2]=0,n[A+96>>2]=0,n[A+100>>2]=0,n[A+104>>2]=0,n[A+108>>2]=0,n[A+112>>2]=0,n[A+116>>2]=0,n[A+120>>2]=0,n[A+124>>2]=0,t=n[9821],n[A+160>>2]=n[9820],n[A+164>>2]=t,t=n[9823],n[A+168>>2]=n[9822],n[A+172>>2]=t,t=n[9825],n[A+176>>2]=n[9824],n[A+180>>2]=t,t=n[9827],n[A+184>>2]=n[9826],n[A+188>>2]=t,t=s[r+4|0]|s[r+5|0]<<8|(s[r+6|0]<<16|s[r+7|0]<<24),n[A+64>>2]=s[r|0]|s[r+1|0]<<8|(s[r+2|0]<<16|s[r+3|0]<<24),n[A+68>>2]=t,t=s[r+12|0]|s[r+13|0]<<8|(s[r+14|0]<<16|s[r+15|0]<<24),n[A+72>>2]=s[r+8|0]|s[r+9|0]<<8|(s[r+10|0]<<16|s[r+11|0]<<24),n[A+76>>2]=t,t=s[r+20|0]|s[r+21|0]<<8|(s[r+22|0]<<16|s[r+23|0]<<24),n[A+80>>2]=s[r+16|0]|s[r+17|0]<<8|(s[r+18|0]<<16|s[r+19|0]<<24),n[A+84>>2]=t,t=s[r+28|0]|s[r+29|0]<<8|(s[r+30|0]<<16|s[r+31|0]<<24),n[A+88>>2]=s[r+24|0]|s[r+25|0]<<8|(s[r+26|0]<<16|s[r+27|0]<<24),n[A+92>>2]=t,i=A+128|0,t=A- -64|0,OA(i,t),er(i),r=n[A+156>>2],n[A+24>>2]=n[A+152>>2],n[A+28>>2]=r,r=n[A+148>>2],n[A+16>>2]=n[A+144>>2],n[A+20>>2]=r,r=n[A+140>>2],n[A+8>>2]=n[A+136>>2],n[A+12>>2]=r,r=n[A+132>>2],n[A>>2]=n[A+128>>2],n[A+4>>2]=r,n[A+120>>2]=0,n[A+124>>2]=0,n[A+112>>2]=0,n[A+116>>2]=0,n[A+104>>2]=0,n[A+108>>2]=0,n[A+96>>2]=0,n[A+100>>2]=0,r=s[e+4|0]|s[e+5|0]<<8|(s[e+6|0]<<16|s[e+7|0]<<24),n[A+64>>2]=s[e|0]|s[e+1|0]<<8|(s[e+2|0]<<16|s[e+3|0]<<24),n[A+68>>2]=r,r=s[e+12|0]|s[e+13|0]<<8|(s[e+14|0]<<16|s[e+15|0]<<24),n[A+72>>2]=s[e+8|0]|s[e+9|0]<<8|(s[e+10|0]<<16|s[e+11|0]<<24),n[A+76>>2]=r,r=s[e+20|0]|s[e+21|0]<<8|(s[e+22|0]<<16|s[e+23|0]<<24),n[A+80>>2]=s[e+16|0]|s[e+17|0]<<8|(s[e+18|0]<<16|s[e+19|0]<<24),n[A+84>>2]=r,r=s[e+28|0]|s[e+29|0]<<8|(s[e+30|0]<<16|s[e+31|0]<<24),n[A+88>>2]=s[e+24|0]|s[e+25|0]<<8|(s[e+26|0]<<16|s[e+27|0]<<24),n[A+92>>2]=r,n[A+56>>2]=0,n[A+60>>2]=0,n[A+48>>2]=0,n[A+52>>2]=0,n[A+40>>2]=0,n[A+44>>2]=0,n[A+32>>2]=0,n[A+36>>2]=0,Sn(t,A),e=n[A+124>>2],n[A+184>>2]=n[A+120>>2],n[A+188>>2]=e,e=n[A+116>>2],n[A+176>>2]=n[A+112>>2],n[A+180>>2]=e,e=n[A+108>>2],n[A+168>>2]=n[A+104>>2],n[A+172>>2]=e,e=n[A+100>>2],n[A+160>>2]=n[A+96>>2],n[A+164>>2]=e,e=n[A+92>>2],n[A+152>>2]=n[A+88>>2],n[A+156>>2]=e,e=n[A+84>>2],n[A+144>>2]=n[A+80>>2],n[A+148>>2]=e,e=n[A+76>>2],n[A+136>>2]=n[A+72>>2],n[A+140>>2]=e,e=n[A+68>>2],n[A+128>>2]=n[A+64>>2],n[A+132>>2]=e,er(i),r=n[A+156>>2],e=n[A+152>>2],h[_+24|0]=e,h[_+25|0]=e>>>8,h[_+26|0]=e>>>16,h[_+27|0]=e>>>24,h[_+28|0]=r,h[_+29|0]=r>>>8,h[_+30|0]=r>>>16,h[_+31|0]=r>>>24,r=n[A+148>>2],e=n[A+144>>2],h[_+16|0]=e,h[_+17|0]=e>>>8,h[_+18|0]=e>>>16,h[_+19|0]=e>>>24,h[_+20|0]=r,h[_+21|0]=r>>>8,h[_+22|0]=r>>>16,h[_+23|0]=r>>>24,r=n[A+140>>2],e=n[A+136>>2],h[_+8|0]=e,h[_+9|0]=e>>>8,h[_+10|0]=e>>>16,h[_+11|0]=e>>>24,h[_+12|0]=r,h[_+13|0]=r>>>8,h[_+14|0]=r>>>16,h[_+15|0]=r>>>24,r=n[A+132>>2],e=n[A+128>>2],h[_|0]=e,h[_+1|0]=e>>>8,h[_+2|0]=e>>>16,h[_+3|0]=e>>>24,h[_+4|0]=r,h[_+5|0]=r>>>8,h[_+6|0]=r>>>16,h[_+7|0]=r>>>24,Y0(i,64),F=A+192|0}function $2(_){_=_|0;var e=0,r=0,A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0;r:{if(!_)break r;A=_-8|0,e=n[_-4>>2],_=e&-8,i=A+_|0;A:{if(e&1)break A;if(!(e&2)||(e=n[A>>2],A=A-e|0,A>>>0<p1[10177]))break r;_=_+e|0;n:{e:{t:{if(n[10178]!=(A|0)){if(r=n[A+12>>2],e>>>0<=255){if(t=n[A+8>>2],(t|0)!=(r|0))break t;B=40692,l=n[10173]&b(-2,e>>>3|0),n[B>>2]=l;break A}if(y=n[A+24>>2],(r|0)!=(A|0)){e=n[A+8>>2],n[e+12>>2]=r,n[r+8>>2]=e;break n}if(t=n[A+20>>2],t)e=A+20|0;else{if(t=n[A+16>>2],!t)break e;e=A+16|0}for(;o=e,r=t,e=r+20|0,t=n[r+20>>2],!(!t&&(e=r+16|0,t=n[r+16>>2],!t)););n[o>>2]=0;break n}if(e=n[i+4>>2],(e&3)!=3)break A;n[10175]=_,n[i+4>>2]=e&-2,n[A+4>>2]=_|1,n[i>>2]=_;return}n[t+12>>2]=r,n[r+8>>2]=t;break A}r=0}if(!y)break A;e=n[A+28>>2],t=e<<2;n:{if(n[t+40996>>2]==(A|0)){if(n[t+40996>>2]=r,r)break n;B=40696,l=n[10174]&b(-2,e),n[B>>2]=l;break A}e:{if(n[y+16>>2]==(A|0)){n[y+16>>2]=r;break e}n[y+20>>2]=r}if(!r)break A}if(n[r+24>>2]=y,e=n[A+16>>2],e&&(n[r+16>>2]=e,n[e+24>>2]=r),e=n[A+20>>2],!e)break A;n[r+20>>2]=e,n[e+24>>2]=r}if(A>>>0>=i>>>0||(e=n[i+4>>2],!(e&1)))break r;A:{n:{e:{t:{if(!(e&2)){if(n[10179]==(i|0)){if(n[10179]=A,_=n[10176]+_|0,n[10176]=_,n[A+4>>2]=_|1,n[10178]!=(A|0))break r;n[10175]=0,n[10178]=0;return}if(u=n[10178],(u|0)==(i|0)){n[10178]=A,_=n[10175]+_|0,n[10175]=_,n[A+4>>2]=_|1,n[_+A>>2]=_;return}if(_=(e&-8)+_|0,r=n[i+12>>2],e>>>0<=255){if(t=n[i+8>>2],(t|0)==(r|0)){B=40692,l=n[10173]&b(-2,e>>>3|0),n[B>>2]=l;break n}n[t+12>>2]=r,n[r+8>>2]=t;break n}if(y=n[i+24>>2],(r|0)!=(i|0)){e=n[i+8>>2],n[e+12>>2]=r,n[r+8>>2]=e;break e}if(t=n[i+20>>2],t)e=i+20|0;else{if(t=n[i+16>>2],!t)break t;e=i+16|0}for(;o=e,r=t,e=r+20|0,t=n[r+20>>2],!(!t&&(e=r+16|0,t=n[r+16>>2],!t)););n[o>>2]=0;break e}n[i+4>>2]=e&-2,n[A+4>>2]=_|1,n[_+A>>2]=_;break A}r=0}if(!y)break n;e=n[i+28>>2],t=e<<2;e:{if(n[t+40996>>2]==(i|0)){if(n[t+40996>>2]=r,r)break e;B=40696,l=n[10174]&b(-2,e),n[B>>2]=l;break n}t:{if(n[y+16>>2]==(i|0)){n[y+16>>2]=r;break t}n[y+20>>2]=r}if(!r)break n}if(n[r+24>>2]=y,e=n[i+16>>2],e&&(n[r+16>>2]=e,n[e+24>>2]=r),e=n[i+20>>2],!e)break n;n[r+20>>2]=e,n[e+24>>2]=r}if(n[A+4>>2]=_|1,n[_+A>>2]=_,(A|0)!=(u|0))break A;n[10175]=_;return}if(_>>>0<=255){e=(_&248)+40732|0,t=n[10173],_=1<<(_>>>3);A:{if(!(t&_)){n[10173]=_|t,_=e;break A}_=n[e+8>>2]}n[e+8>>2]=A,n[_+12>>2]=A,n[A+12>>2]=e,n[A+8>>2]=_;return}r=31,_>>>0<=16777215&&(e=U1(_>>>8|0),r=(_>>>38-e&1|e<<1)^62),n[A+28>>2]=r,n[A+16>>2]=0,n[A+20>>2]=0,e=(r<<2)+40996|0;A:{n:{t=n[10174],o=1<<r;e:{if(!(t&o)){n[10174]=t|o,n[e>>2]=A,r=24;break e}for(r=_<<((r|0)!=31?25-(r>>>1|0)|0:0),e=n[e>>2];;){if(t=e,(n[e+4>>2]&-8)==(_|0))break n;if(e=r>>>29|0,r=r<<1,o=(e&4)+t|0,e=n[o+16>>2],!e)break}n[o+16>>2]=A,e=t,r=24}t=A,o=A,_=8;break A}e=n[t+8>>2],n[e+12>>2]=A,n[t+8>>2]=A,r=8,o=0,_=24}n[r+A>>2]=e,n[A+12>>2]=t,n[_+A>>2]=o,_=n[10181]-1|0,n[10181]=_||-1}}function S4(_,e,r){var A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0;A=F-224|0,F=A,B=n[r+16>>2],t=r- -64|0,l=n[t>>2],j=n[r+80>>2],v=n[r+32>>2],f=n[r+48>>2],i=s[e+4|0]|s[e+5|0]<<8|(s[e+6|0]<<16|s[e+7|0]<<24),g=n[r+20>>2],T=n[r+68>>2],m=n[r+84>>2],M=n[r+36>>2],C=n[r+52>>2],o=s[e+8|0]|s[e+9|0]<<8|(s[e+10|0]<<16|s[e+11|0]<<24),G=n[r+24>>2],d=n[r+72>>2],X=n[r+88>>2],K=n[r+40>>2],O=n[r+56>>2],y=s[e|0]|s[e+1|0]<<8|(s[e+2|0]<<16|s[e+3|0]<<24),u=s[e+12|0]|s[e+13|0]<<8|(s[e+14|0]<<16|s[e+15|0]<<24),e=u^(n[r+44>>2]&n[r+60>>2]^(n[r+28>>2]^(n[r+92>>2]^n[r+76>>2]))),h[_+12|0]=e,h[_+13|0]=e>>>8,h[_+14|0]=e>>>16,h[_+15|0]=e>>>24,e=K&O^(d^X^G)^o,h[_+8|0]=e,h[_+9|0]=e>>>8,h[_+10|0]=e>>>16,h[_+11|0]=e>>>24,e=M&C^(T^m^g)^i,h[_+4|0]=e,h[_+5|0]=e>>>8,h[_+6|0]=e>>>16,h[_+7|0]=e>>>24,e=v&f^(B^(l^j))^y,h[_|0]=e,h[_+1|0]=e>>>8,h[_+2|0]=e>>>16,h[_+3|0]=e>>>24,_=n[r+92>>2],n[A+216>>2]=n[r+88>>2],n[A+220>>2]=_,_=n[r+84>>2],n[A+208>>2]=n[r+80>>2],n[A+212>>2]=_,_=n[t+4>>2],n[A+176>>2]=n[t>>2],n[A+180>>2]=_,_=n[r+76>>2],n[A+184>>2]=n[r+72>>2],n[A+188>>2]=_,_=n[r+84>>2],n[A+160>>2]=n[r+80>>2],n[A+164>>2]=_,_=n[r+92>>2],n[A+168>>2]=n[r+88>>2],n[A+172>>2]=_,_=A+192|0,S0(_,A+176|0,A+160|0),e=n[A+204>>2],n[r+88>>2]=n[A+200>>2],n[r+92>>2]=e,e=n[A+196>>2],n[r+80>>2]=n[A+192>>2],n[r+84>>2]=e,e=n[r+52>>2],n[A+144>>2]=n[r+48>>2],n[A+148>>2]=e,e=n[r+60>>2],n[A+152>>2]=n[r+56>>2],n[A+156>>2]=e,e=n[t+4>>2],n[A+128>>2]=n[t>>2],n[A+132>>2]=e,e=n[r+76>>2],n[A+136>>2]=n[r+72>>2],n[A+140>>2]=e,S0(_,A+144|0,A+128|0),e=n[A+204>>2],n[r+72>>2]=n[A+200>>2],n[r+76>>2]=e,e=n[A+196>>2],n[t>>2]=n[A+192>>2],n[t+4>>2]=e,e=n[r+36>>2],n[A+112>>2]=n[r+32>>2],n[A+116>>2]=e,e=n[r+44>>2],n[A+120>>2]=n[r+40>>2],n[A+124>>2]=e,e=n[r+52>>2],n[A+96>>2]=n[r+48>>2],n[A+100>>2]=e,e=n[r+60>>2],n[A+104>>2]=n[r+56>>2],n[A+108>>2]=e,S0(_,A+112|0,A+96|0),e=n[A+204>>2],n[r+56>>2]=n[A+200>>2],n[r+60>>2]=e,e=n[A+196>>2],n[r+48>>2]=n[A+192>>2],n[r+52>>2]=e,e=n[r+20>>2],n[A+80>>2]=n[r+16>>2],n[A+84>>2]=e,e=n[r+28>>2],n[A+88>>2]=n[r+24>>2],n[A+92>>2]=e,e=n[r+36>>2],n[A+64>>2]=n[r+32>>2],n[A+68>>2]=e,e=n[r+44>>2],n[A+72>>2]=n[r+40>>2],n[A+76>>2]=e,S0(_,A+80|0,A- -64|0),e=n[A+204>>2],n[r+40>>2]=n[A+200>>2],n[r+44>>2]=e,e=n[A+196>>2],n[r+32>>2]=n[A+192>>2],n[r+36>>2]=e,e=n[r+4>>2],n[A+48>>2]=n[r>>2],n[A+52>>2]=e,e=n[r+12>>2],n[A+56>>2]=n[r+8>>2],n[A+60>>2]=e,e=n[r+20>>2],n[A+32>>2]=n[r+16>>2],n[A+36>>2]=e,e=n[r+28>>2],n[A+40>>2]=n[r+24>>2],n[A+44>>2]=e,S0(_,A+48|0,A+32|0),e=n[A+204>>2],n[r+24>>2]=n[A+200>>2],n[r+28>>2]=e,e=n[A+196>>2],n[r+16>>2]=n[A+192>>2],n[r+20>>2]=e,e=n[A+212>>2],n[A+16>>2]=n[A+208>>2],n[A+20>>2]=e,e=n[A+220>>2],n[A+24>>2]=n[A+216>>2],n[A+28>>2]=e,e=n[r+4>>2],n[A>>2]=n[r>>2],n[A+4>>2]=e,e=n[r+12>>2],n[A+8>>2]=n[r+8>>2],n[A+12>>2]=e,S0(_,A+16|0,A),_=n[A+192>>2],e=n[A+196>>2],t=n[A+200>>2],n[r+12>>2]=u^n[A+204>>2],n[r+8>>2]=t^o,n[r+4>>2]=e^i,n[r>>2]=_^y,F=A+224|0}function I4(_,e,r){var A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0;A=F-224|0,F=A,o=n[r+16>>2],t=r- -64|0,i=n[t>>2],B=n[r+80>>2],l=n[r+32>>2],j=n[r+48>>2],y=n[r+20>>2],v=n[r+68>>2],f=n[r+84>>2],g=s[e+4|0]|s[e+5|0]<<8|(s[e+6|0]<<16|s[e+7|0]<<24),T=n[r+36>>2],m=n[r+52>>2],u=n[r+24>>2],M=n[r+72>>2],C=n[r+88>>2],G=s[e+8|0]|s[e+9|0]<<8|(s[e+10|0]<<16|s[e+11|0]<<24),d=n[r+40>>2],X=n[r+56>>2],K=s[e|0]|s[e+1|0]<<8|(s[e+2|0]<<16|s[e+3|0]<<24),e=n[r+44>>2]&n[r+60>>2]^(n[r+28>>2]^(n[r+76>>2]^(n[r+92>>2]^(s[e+12|0]|s[e+13|0]<<8|(s[e+14|0]<<16|s[e+15|0]<<24))))),h[_+12|0]=e,h[_+13|0]=e>>>8,h[_+14|0]=e>>>16,h[_+15|0]=e>>>24,u=d&X^(u^(C^G^M)),h[_+8|0]=u,h[_+9|0]=u>>>8,h[_+10|0]=u>>>16,h[_+11|0]=u>>>24,y=T&m^(y^(f^g^v)),h[_+4|0]=y,h[_+5|0]=y>>>8,h[_+6|0]=y>>>16,h[_+7|0]=y>>>24,o=l&j^(o^(i^(B^K))),h[_|0]=o,h[_+1|0]=o>>>8,h[_+2|0]=o>>>16,h[_+3|0]=o>>>24,_=n[r+92>>2],n[A+216>>2]=n[r+88>>2],n[A+220>>2]=_,_=n[r+84>>2],n[A+208>>2]=n[r+80>>2],n[A+212>>2]=_,_=n[t+4>>2],n[A+176>>2]=n[t>>2],n[A+180>>2]=_,_=n[r+76>>2],n[A+184>>2]=n[r+72>>2],n[A+188>>2]=_,_=n[r+84>>2],n[A+160>>2]=n[r+80>>2],n[A+164>>2]=_,_=n[r+92>>2],n[A+168>>2]=n[r+88>>2],n[A+172>>2]=_,_=A+192|0,S0(_,A+176|0,A+160|0),i=n[A+204>>2],n[r+88>>2]=n[A+200>>2],n[r+92>>2]=i,i=n[A+196>>2],n[r+80>>2]=n[A+192>>2],n[r+84>>2]=i,i=n[r+52>>2],n[A+144>>2]=n[r+48>>2],n[A+148>>2]=i,i=n[r+60>>2],n[A+152>>2]=n[r+56>>2],n[A+156>>2]=i,i=n[t+4>>2],n[A+128>>2]=n[t>>2],n[A+132>>2]=i,i=n[r+76>>2],n[A+136>>2]=n[r+72>>2],n[A+140>>2]=i,S0(_,A+144|0,A+128|0),i=n[A+204>>2],n[r+72>>2]=n[A+200>>2],n[r+76>>2]=i,i=n[A+196>>2],n[t>>2]=n[A+192>>2],n[t+4>>2]=i,t=n[r+36>>2],n[A+112>>2]=n[r+32>>2],n[A+116>>2]=t,t=n[r+44>>2],n[A+120>>2]=n[r+40>>2],n[A+124>>2]=t,t=n[r+52>>2],n[A+96>>2]=n[r+48>>2],n[A+100>>2]=t,t=n[r+60>>2],n[A+104>>2]=n[r+56>>2],n[A+108>>2]=t,S0(_,A+112|0,A+96|0),t=n[A+204>>2],n[r+56>>2]=n[A+200>>2],n[r+60>>2]=t,t=n[A+196>>2],n[r+48>>2]=n[A+192>>2],n[r+52>>2]=t,t=n[r+20>>2],n[A+80>>2]=n[r+16>>2],n[A+84>>2]=t,t=n[r+28>>2],n[A+88>>2]=n[r+24>>2],n[A+92>>2]=t,t=n[r+36>>2],n[A+64>>2]=n[r+32>>2],n[A+68>>2]=t,t=n[r+44>>2],n[A+72>>2]=n[r+40>>2],n[A+76>>2]=t,S0(_,A+80|0,A- -64|0),t=n[A+204>>2],n[r+40>>2]=n[A+200>>2],n[r+44>>2]=t,t=n[A+196>>2],n[r+32>>2]=n[A+192>>2],n[r+36>>2]=t,t=n[r+4>>2],n[A+48>>2]=n[r>>2],n[A+52>>2]=t,t=n[r+12>>2],n[A+56>>2]=n[r+8>>2],n[A+60>>2]=t,t=n[r+20>>2],n[A+32>>2]=n[r+16>>2],n[A+36>>2]=t,t=n[r+28>>2],n[A+40>>2]=n[r+24>>2],n[A+44>>2]=t,S0(_,A+48|0,A+32|0),t=n[A+204>>2],n[r+24>>2]=n[A+200>>2],n[r+28>>2]=t,t=n[A+196>>2],n[r+16>>2]=n[A+192>>2],n[r+20>>2]=t,t=n[A+212>>2],n[A+16>>2]=n[A+208>>2],n[A+20>>2]=t,t=n[A+220>>2],n[A+24>>2]=n[A+216>>2],n[A+28>>2]=t,t=n[r+4>>2],n[A>>2]=n[r>>2],n[A+4>>2]=t,t=n[r+12>>2],n[A+8>>2]=n[r+8>>2],n[A+12>>2]=t,S0(_,A+16|0,A),_=n[A+192>>2],t=n[A+196>>2],i=n[A+200>>2],n[r+12>>2]=e^n[A+204>>2],n[r+8>>2]=i^u,n[r+4>>2]=t^y,n[r>>2]=_^o,F=A+224|0}function MA(_,e,r,A,t){var i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0,x=0,z=0,$=0,J=0,A0=0,n0=0,t0=0,_0=0,s0=0,o0=0,B0=0,u0=0,l0=0,j0=0,v0=0,f0=0,c0=0;r:{if(!A){K=1634760805,O=2036477234,U=857760878,x=1797285236;break r}O=s[A+8|0]|s[A+9|0]<<8|(s[A+10|0]<<16|s[A+11|0]<<24),U=s[A+4|0]|s[A+5|0]<<8|(s[A+6|0]<<16|s[A+7|0]<<24),K=s[A|0]|s[A+1|0]<<8|(s[A+2|0]<<16|s[A+3|0]<<24),x=s[A+12|0]|s[A+13|0]<<8|(s[A+14|0]<<16|s[A+15|0]<<24)}for(A=K,J=s[r|0]|s[r+1|0]<<8|(s[r+2|0]<<16|s[r+3|0]<<24),l=J,A0=s[r+4|0]|s[r+5|0]<<8|(s[r+6|0]<<16|s[r+7|0]<<24),g=A0,n0=s[r+8|0]|s[r+9|0]<<8|(s[r+10|0]<<16|s[r+11|0]<<24),o=n0,t0=s[r+12|0]|s[r+13|0]<<8|(s[r+14|0]<<16|s[r+15|0]<<24),i=t0,y=U,_0=s[e|0]|s[e+1|0]<<8|(s[e+2|0]<<16|s[e+3|0]<<24),j=_0,s0=s[e+4|0]|s[e+5|0]<<8|(s[e+6|0]<<16|s[e+7|0]<<24),u=s0,o0=s[e+8|0]|s[e+9|0]<<8|(s[e+10|0]<<16|s[e+11|0]<<24),T=o0,B0=s[e+12|0]|s[e+13|0]<<8|(s[e+14|0]<<16|s[e+15|0]<<24),v=B0,e=O,u0=s[r+16|0]|s[r+17|0]<<8|(s[r+18|0]<<16|s[r+19|0]<<24),f=u0,m=x,l0=s[r+28|0]|s[r+29|0]<<8|(s[r+30|0]<<16|s[r+31|0]<<24),C=l0,j0=s[r+24|0]|s[r+25|0]<<8|(s[r+26|0]<<16|s[r+27|0]<<24),M=j0,v0=s[r+20|0]|s[r+21|0]<<8|(s[r+22|0]<<16|s[r+23|0]<<24),r=v0;G=b(y+l|0,7)^v,z=b(G+y|0,9)^M,d=b(r+A|0,7)^i,$=b(d+A|0,9)^T,f0=b($+d|0,13)^r,X=b(f+m|0,7)^o,u=b(X+m|0,9)^u,o=b(u+X|0,13)^f,i=b(u+o|0,18)^m,B=b(e+j|0,7)^C,r=f0^b(i+B|0,7),M=z^b(r+i|0,9),C=b(r+M|0,13)^B,m=b(M+C|0,18)^i,v=B,B=b(e+B|0,9)^g,i=b(v+B|0,13)^j,e=b(i+B|0,18)^e,f=b(e+G|0,7)^o,T=b(f+e|0,9)^$,v=b(f+T|0,13)^G,e=b(T+v|0,18)^e,o=b(G+z|0,13)^l,y=b(o+z|0,18)^y,j=b(y+d|0,7)^i,u=b(j+y|0,9)^u,i=b(u+j|0,13)^d,y=b(u+i|0,18)^y,A=b($+f0|0,18)^A,l=b(A+X|0,7)^o,g=b(l+A|0,9)^B,o=b(l+g|0,13)^X,A=b(g+o|0,18)^A,c0=c0+2|0,c0>>>0<t>>>0;);t=m+x|0,h[_+60|0]=t,h[_+61|0]=t>>>8,h[_+62|0]=t>>>16,h[_+63|0]=t>>>24,t=C+l0|0,h[_+56|0]=t,h[_+57|0]=t>>>8,h[_+58|0]=t>>>16,h[_+59|0]=t>>>24,t=M+j0|0,h[_+52|0]=t,h[_+53|0]=t>>>8,h[_+54|0]=t>>>16,h[_+55|0]=t>>>24,r=r+v0|0,h[_+48|0]=r,h[_+49|0]=r>>>8,h[_+50|0]=r>>>16,h[_+51|0]=r>>>24,r=f+u0|0,h[_+44|0]=r,h[_+45|0]=r>>>8,h[_+46|0]=r>>>16,h[_+47|0]=r>>>24,e=e+O|0,h[_+40|0]=e,h[_+41|0]=e>>>8,h[_+42|0]=e>>>16,h[_+43|0]=e>>>24,e=v+B0|0,h[_+36|0]=e,h[_+37|0]=e>>>8,h[_+38|0]=e>>>16,h[_+39|0]=e>>>24,e=T+o0|0,h[_+32|0]=e,h[_+33|0]=e>>>8,h[_+34|0]=e>>>16,h[_+35|0]=e>>>24,e=u+s0|0,h[_+28|0]=e,h[_+29|0]=e>>>8,h[_+30|0]=e>>>16,h[_+31|0]=e>>>24,e=j+_0|0,h[_+24|0]=e,h[_+25|0]=e>>>8,h[_+26|0]=e>>>16,h[_+27|0]=e>>>24,e=y+U|0,h[_+20|0]=e,h[_+21|0]=e>>>8,h[_+22|0]=e>>>16,h[_+23|0]=e>>>24,e=i+t0|0,h[_+16|0]=e,h[_+17|0]=e>>>8,h[_+18|0]=e>>>16,h[_+19|0]=e>>>24,e=o+n0|0,h[_+12|0]=e,h[_+13|0]=e>>>8,h[_+14|0]=e>>>16,h[_+15|0]=e>>>24,e=g+A0|0,h[_+8|0]=e,h[_+9|0]=e>>>8,h[_+10|0]=e>>>16,h[_+11|0]=e>>>24,e=l+J|0,h[_+4|0]=e,h[_+5|0]=e>>>8,h[_+6|0]=e>>>16,h[_+7|0]=e>>>24,e=A+K|0,h[_|0]=e,h[_+1|0]=e>>>8,h[_+2|0]=e>>>16,h[_+3|0]=e>>>24}function C4(_,e,r,A,t,i,o,y,u){var B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0;if(e-65>>>0<4294967232|o>>>0>64)_=-1;else{B=F,m=B,B=B-512&-64,F=B;r:{A:{if(!(!(A|t)|r)|(!_|(e-65&255)>>>0<=191)|(!(!o||i)|o>>>0>=65))break A;n:{if(o){if(!i)break A;e:{if(!y){v=725511199,f=-1694144372,j=-1377402159,y=1359893119;break e}v=(s[y+8|0]|s[y+9|0]<<8|(s[y+10|0]<<16|s[y+11|0]<<24))^725511199,f=(s[y+12|0]|s[y+13|0]<<8|(s[y+14|0]<<16|s[y+15|0]<<24))^-1694144372,j=(s[y|0]|s[y+1|0]<<8|(s[y+2|0]<<16|s[y+3|0]<<24))^-1377402159,y=(s[y+4|0]|s[y+5|0]<<8|(s[y+6|0]<<16|s[y+7|0]<<24))^1359893119}e:{if(!u){l=327033209,g=1541459225,T=-79577749,u=528734635;break e}l=(s[u+8|0]|s[u+9|0]<<8|(s[u+10|0]<<16|s[u+11|0]<<24))^327033209,g=(s[u+12|0]|s[u+13|0]<<8|(s[u+14|0]<<16|s[u+15|0]<<24))^1541459225,T=(s[u|0]|s[u+1|0]<<8|(s[u+2|0]<<16|s[u+3|0]<<24))^-79577749,u=(s[u+4|0]|s[u+5|0]<<8|(s[u+6|0]<<16|s[u+7|0]<<24))^528734635}B2(B- -64|0,0,293),n[B+56>>2]=l,n[B+60>>2]=g,n[B+48>>2]=T,n[B+52>>2]=u,n[B+40>>2]=v,n[B+44>>2]=f,n[B+32>>2]=j,n[B+36>>2]=y,n[B+24>>2]=1595750129,n[B+28>>2]=-1521486534,n[B+16>>2]=-23791573,n[B+20>>2]=1013904242,n[B+8>>2]=-2067093701,n[B+12>>2]=-1150833019,n[B>>2]=(o<<8|e)^-222443256,n[B+4>>2]=o>>>24^1779033703,y=128,u=128-o|0,u&&B2((B+384|0)+o|0,0,u),o&&b0(B+384|0,i,o),i=B+384|0,b0(B+96|0,i,128),n[B+352>>2]=128,Y0(i,128);break n}e:{if(!y){v=725511199,f=-1694144372,o=1359893119,i=-1377402159;break e}v=(s[y+8|0]|s[y+9|0]<<8|(s[y+10|0]<<16|s[y+11|0]<<24))^725511199,f=(s[y+12|0]|s[y+13|0]<<8|(s[y+14|0]<<16|s[y+15|0]<<24))^-1694144372,o=(s[y+4|0]|s[y+5|0]<<8|(s[y+6|0]<<16|s[y+7|0]<<24))^1359893119,i=(s[y|0]|s[y+1|0]<<8|(s[y+2|0]<<16|s[y+3|0]<<24))^-1377402159}e:{if(!u){l=327033209,g=1541459225,j=-79577749,u=528734635;break e}l=(s[u+8|0]|s[u+9|0]<<8|(s[u+10|0]<<16|s[u+11|0]<<24))^327033209,g=(s[u+12|0]|s[u+13|0]<<8|(s[u+14|0]<<16|s[u+15|0]<<24))^1541459225,j=(s[u|0]|s[u+1|0]<<8|(s[u+2|0]<<16|s[u+3|0]<<24))^-79577749,u=(s[u+4|0]|s[u+5|0]<<8|(s[u+6|0]<<16|s[u+7|0]<<24))^528734635}y=0,B2(B- -64|0,0,293),n[B+56>>2]=l,n[B+60>>2]=g,n[B+48>>2]=j,n[B+52>>2]=u,n[B+40>>2]=v,n[B+44>>2]=f,n[B+32>>2]=i,n[B+36>>2]=o,n[B+24>>2]=1595750129,n[B+28>>2]=-1521486534,n[B+16>>2]=-23791573,n[B+20>>2]=1013904242,n[B+8>>2]=-2067093701,n[B+12>>2]=-1150833019,n[B>>2]=e^-222443256,n[B+4>>2]=1779033703}if(A|t){if(j=B+96|0,i=256-y|0,v=i,!t&A>>>0>i>>>0|t)for(f=B+224|0;i&&b0(y+j|0,r,i),n[B+352>>2]=n[B+352>>2]+i,o=n[B+68>>2],u=o,y=n[B+64>>2],l=y+128|0,o=l>>>0<128?u+1|0:u,n[B+64>>2]=l,n[B+68>>2]=o,o=n[B+76>>2],y=(u|0)==-1&y>>>0>4294967167,u=y,y=y+n[B+72>>2]|0,o=u>>>0>y>>>0?o+1|0:o,n[B+72>>2]=y,n[B+76>>2]=o,o6(B,j),b0(j,f,128),l=n[B+352>>2],y=l-128|0,n[B+352>>2]=y,r=r+i|0,o=v,u=A-o|0,i=384-l|0,v=i,t=t-(A>>>0<o>>>0)|0,A=u,!!(!t&u>>>0>i>>>0|t););A&&b0(y+j|0,r,A),n[B+352>>2]=A+n[B+352>>2]}DA(B,_,e),F=m;break r}S2(),c2()}_=0}return _}function H4(_,e){var r=0,A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0;i=_+e|0,r=n[_+4>>2];r:{A:{if(r&1)break A;if(!(r&2))break r;r=n[_>>2],e=r+e|0;n:{e:{t:{if(_=_-r|0,(_|0)!=n[10178]){if(A=n[_+12>>2],r>>>0<=255){if(t=n[_+8>>2],(t|0)!=(A|0))break t;B=40692,l=n[10173]&b(-2,r>>>3|0),n[B>>2]=l;break A}if(o=n[_+24>>2],(_|0)!=(A|0)){r=n[_+8>>2],n[r+12>>2]=A,n[A+8>>2]=r;break n}if(t=n[_+20>>2],t)r=_+20|0;else{if(t=n[_+16>>2],!t)break e;r=_+16|0}for(;y=r,A=t,r=A+20|0,t=n[A+20>>2],!(!t&&(r=A+16|0,t=n[A+16>>2],!t)););n[y>>2]=0;break n}if(r=n[i+4>>2],(r&3)!=3)break A;n[10175]=e,n[i+4>>2]=r&-2,n[_+4>>2]=e|1,n[i>>2]=e;return}n[t+12>>2]=A,n[A+8>>2]=t;break A}A=0}if(!o)break A;r=n[_+28>>2],t=r<<2;n:{if(n[t+40996>>2]==(_|0)){if(n[t+40996>>2]=A,A)break n;B=40696,l=n[10174]&b(-2,r),n[B>>2]=l;break A}e:{if(n[o+16>>2]==(_|0)){n[o+16>>2]=A;break e}n[o+20>>2]=A}if(!A)break A}if(n[A+24>>2]=o,r=n[_+16>>2],r&&(n[A+16>>2]=r,n[r+24>>2]=A),r=n[_+20>>2],!r)break A;n[A+20>>2]=r,n[r+24>>2]=A}A:{n:{e:{t:{if(r=n[i+4>>2],!(r&2)){if(n[10179]==(i|0)){if(n[10179]=_,e=n[10176]+e|0,n[10176]=e,n[_+4>>2]=e|1,n[10178]!=(_|0))break r;n[10175]=0,n[10178]=0;return}if(u=n[10178],(u|0)==(i|0)){n[10178]=_,e=n[10175]+e|0,n[10175]=e,n[_+4>>2]=e|1,n[_+e>>2]=e;return}if(e=(r&-8)+e|0,A=n[i+12>>2],r>>>0<=255){if(t=n[i+8>>2],(t|0)==(A|0)){B=40692,l=n[10173]&b(-2,r>>>3|0),n[B>>2]=l;break n}n[t+12>>2]=A,n[A+8>>2]=t;break n}if(o=n[i+24>>2],(A|0)!=(i|0)){r=n[i+8>>2],n[r+12>>2]=A,n[A+8>>2]=r;break e}if(t=n[i+20>>2],t)r=i+20|0;else{if(t=n[i+16>>2],!t)break t;r=i+16|0}for(;y=r,A=t,r=A+20|0,t=n[A+20>>2],!(!t&&(r=A+16|0,t=n[A+16>>2],!t)););n[y>>2]=0;break e}n[i+4>>2]=r&-2,n[_+4>>2]=e|1,n[_+e>>2]=e;break A}A=0}if(!o)break n;r=n[i+28>>2],t=r<<2;e:{if(n[t+40996>>2]==(i|0)){if(n[t+40996>>2]=A,A)break e;B=40696,l=n[10174]&b(-2,r),n[B>>2]=l;break n}t:{if(n[o+16>>2]==(i|0)){n[o+16>>2]=A;break t}n[o+20>>2]=A}if(!A)break n}if(n[A+24>>2]=o,r=n[i+16>>2],r&&(n[A+16>>2]=r,n[r+24>>2]=A),r=n[i+20>>2],!r)break n;n[A+20>>2]=r,n[r+24>>2]=A}if(n[_+4>>2]=e|1,n[_+e>>2]=e,(_|0)!=(u|0))break A;n[10175]=e;return}if(e>>>0<=255){r=(e&248)+40732|0,A=n[10173],e=1<<(e>>>3);A:{if(!(A&e)){n[10173]=e|A,e=r;break A}e=n[r+8>>2]}n[r+8>>2]=_,n[e+12>>2]=_,n[_+12>>2]=r,n[_+8>>2]=e;return}A=31,e>>>0<=16777215&&(r=U1(e>>>8|0),A=(e>>>38-r&1|r<<1)^62),n[_+28>>2]=A,n[_+16>>2]=0,n[_+20>>2]=0,r=(A<<2)+40996|0;A:{t=n[10174],y=1<<A;n:{if(!(t&y)){n[10174]=t|y,n[r>>2]=_,n[_+24>>2]=r;break n}for(A=e<<((A|0)!=31?25-(A>>>1|0)|0:0),r=n[r>>2];;){if(t=r,(n[r+4>>2]&-8)==(e|0))break A;if(r=A>>>29|0,A=A<<1,y=t+(r&4)|0,r=n[y+16>>2],!r)break}n[y+16>>2]=_,n[_+24>>2]=t}n[_+12>>2]=_,n[_+8>>2]=_;return}e=n[t+8>>2],n[e+12>>2]=_,n[t+8>>2]=_,n[_+24>>2]=0,n[_+12>>2]=t,n[_+8>>2]=e}}function r_(_,e,r,A,t,i,o,y,u,B){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0,i=i|0,o=o|0,y=y|0,u=u|0,B=B|0;var l=0,j=0,v=0,f=0,g=0,T=0,m=0;l=F-400|0,F=l,r&&(n[r>>2]=0,n[r+4>>2]=0),A&&(h[A|0]=255),T=u,u=B,B=-1,v=i;r:{A:{j=v>>>0<17,i=o;n:{if(j&!o)break n;if(j=o-j|0,m=j,o=v-17|0,!j&o>>>0>=4294967279|j)break A;if(f=l+32|0,g=_+32|0,vr(f,64,0,g,_),j=l+96|0,w1(j,f),Y0(f,64),j2(j,y,T,u),j2(j,39312,0-T&15,0),n[l+88>>2]=0,n[l+92>>2]=0,n[l+80>>2]=0,n[l+84>>2]=0,n[l+72>>2]=0,n[l+76>>2]=0,n[l+64>>2]=0,n[l+68>>2]=0,n[l+56>>2]=0,n[l+60>>2]=0,n[l+48>>2]=0,n[l+52>>2]=0,n[l+40>>2]=0,n[l+44>>2]=0,n[l+32>>2]=0,n[l+36>>2]=0,h[l+32|0]=s[t|0],Mr(f,f,64,0,g,1,_),y=s[l+32|0],h[l+32|0]=s[t|0],j2(j,f,64,0),t=t+1|0,j2(j,t,o,m),j2(j,39312,v-1&15,0),n[l+24>>2]=T,n[l+28>>2]=u,u=l+24|0,j2(j,u,8,0),v=v+47|0,i=v>>>0<47?i+1|0:i,n[l+24>>2]=v,n[l+28>>2]=i,j2(j,u,8,0),m1(j,l),Y0(j,256),mr(l,t+o|0,16)){Y0(l,16);break n}Mr(e,t,o,m,g,2,_),h[_+36|0]=s[_+36|0]^s[l|0],h[_+37|0]=s[_+37|0]^s[l+1|0],h[_+38|0]=s[_+38|0]^s[l+2|0],h[_+39|0]=s[_+39|0]^s[l+3|0],h[_+40|0]=s[_+40|0]^s[l+4|0],h[_+41|0]=s[_+41|0]^s[l+5|0],h[_+42|0]=s[_+42|0]^s[l+6|0],h[_+43|0]=s[_+43|0]^s[l+7|0],an(g);e:{if(!(y&2)&&!n1(g,4))break e;e=s[_+28|0]|s[_+29|0]<<8|(s[_+30|0]<<16|s[_+31|0]<<24),n[l+376>>2]=s[_+24|0]|s[_+25|0]<<8|(s[_+26|0]<<16|s[_+27|0]<<24),n[l+380>>2]=e,e=s[_+20|0]|s[_+21|0]<<8|(s[_+22|0]<<16|s[_+23|0]<<24),n[l+368>>2]=s[_+16|0]|s[_+17|0]<<8|(s[_+18|0]<<16|s[_+19|0]<<24),n[l+372>>2]=e,e=s[_+12|0]|s[_+13|0]<<8|(s[_+14|0]<<16|s[_+15|0]<<24),n[l+360>>2]=s[_+8|0]|s[_+9|0]<<8|(s[_+10|0]<<16|s[_+11|0]<<24),n[l+364>>2]=e,e=s[_+4|0]|s[_+5|0]<<8|(s[_+6|0]<<16|s[_+7|0]<<24),n[l+352>>2]=s[_|0]|s[_+1|0]<<8|(s[_+2|0]<<16|s[_+3|0]<<24),n[l+356>>2]=e,e=s[_+40|0]|s[_+41|0]<<8|(s[_+42|0]<<16|s[_+43|0]<<24),n[l+384>>2]=s[_+36|0]|s[_+37|0]<<8|(s[_+38|0]<<16|s[_+39|0]<<24),n[l+388>>2]=e,e=l+352|0,nA(e,e,40,0,g,_),e=n[l+380>>2],t=n[l+376>>2],h[_+24|0]=t,h[_+25|0]=t>>>8,h[_+26|0]=t>>>16,h[_+27|0]=t>>>24,h[_+28|0]=e,h[_+29|0]=e>>>8,h[_+30|0]=e>>>16,h[_+31|0]=e>>>24,e=n[l+372>>2],t=n[l+368>>2],h[_+16|0]=t,h[_+17|0]=t>>>8,h[_+18|0]=t>>>16,h[_+19|0]=t>>>24,h[_+20|0]=e,h[_+21|0]=e>>>8,h[_+22|0]=e>>>16,h[_+23|0]=e>>>24,e=n[l+364>>2],t=n[l+360>>2],h[_+8|0]=t,h[_+9|0]=t>>>8,h[_+10|0]=t>>>16,h[_+11|0]=t>>>24,h[_+12|0]=e,h[_+13|0]=e>>>8,h[_+14|0]=e>>>16,h[_+15|0]=e>>>24,e=n[l+356>>2],t=n[l+352>>2],h[_|0]=t,h[_+1|0]=t>>>8,h[_+2|0]=t>>>16,h[_+3|0]=t>>>24,h[_+4|0]=e,h[_+5|0]=e>>>8,h[_+6|0]=e>>>16,h[_+7|0]=e>>>24,e=n[l+384>>2],t=n[l+388>>2],h[_+32|0]=1,h[_+33|0]=0,h[_+34|0]=0,h[_+35|0]=0,h[_+36|0]=e,h[_+37|0]=e>>>8,h[_+38|0]=e>>>16,h[_+39|0]=e>>>24,h[_+40|0]=t,h[_+41|0]=t>>>8,h[_+42|0]=t>>>16,h[_+43|0]=t>>>24}if(r&&(n[r>>2]=o,n[r+4>>2]=m),B=0,!A)break n;h[A|0]=y}F=l+400|0;break r}S2(),c2()}return B|0}function Y4(_,e,r,A,t,i,o){var y=0,u=0,B=0,l=0,j=0;y=F+-64|0,F=y,j=a1(32);r:{if(!j){_=-22;break r}n[y+28>>2]=0,n[y+32>>2]=0,n[y+24>>2]=16,n[y+20>>2]=t,n[y+16>>2]=A,n[y+12>>2]=r,n[y+8>>2]=32,n[y+4>>2]=j,n[y+36>>2]=0,n[y+40>>2]=0,n[y+60>>2]=0,n[y+56>>2]=1,n[y+52>>2]=1,n[y+48>>2]=e,n[y+44>>2]=_,_=U6(y+4|0,o);A:{if(_){Y0(j,32);break A}n:{if(!i)break n;u=y+4|0,t=F-32|0,F=t,_=-31;e:{t:{_:switch(o-1|0){case 1:_=s[1439]|s[1440]<<8|(s[1441]<<16|s[1442]<<24),e=s[1435]|s[1436]<<8|(s[1437]<<16|s[1438]<<24),h[i+5|0]=e,h[i+6|0]=e>>>8,h[i+7|0]=e>>>16,h[i+8|0]=e>>>24,h[i+9|0]=_,h[i+10|0]=_>>>8,h[i+11|0]=_>>>16,h[i+12|0]=_>>>24,_=s[1434]|s[1435]<<8|(s[1436]<<16|s[1437]<<24),e=s[1430]|s[1431]<<8|(s[1432]<<16|s[1433]<<24),h[i|0]=e,h[i+1|0]=e>>>8,h[i+2|0]=e>>>16,h[i+3|0]=e>>>24,h[i+4|0]=_,h[i+5|0]=_>>>8,h[i+6|0]=_>>>16,h[i+7|0]=_>>>24,r=-12,e=12;break t;case 0:break _;default:break e}_=s[1426]|s[1427]<<8|(s[1428]<<16|s[1429]<<24),h[i+8|0]=_,h[i+9|0]=_>>>8,h[i+10|0]=_>>>16,h[i+11|0]=_>>>24,_=s[1422]|s[1423]<<8|(s[1424]<<16|s[1425]<<24),e=s[1418]|s[1419]<<8|(s[1420]<<16|s[1421]<<24),h[i|0]=e,h[i+1|0]=e>>>8,h[i+2|0]=e>>>16,h[i+3|0]=e>>>24,h[i+4|0]=_,h[i+5|0]=_>>>8,h[i+6|0]=_>>>16,h[i+7|0]=_>>>24,r=-11,e=11}if(_=FA(u),_)break e;h[t+13|0]=0,h[t+11|0]=49,h[t+12|0]=57;t:{if(r=r+128|0,A=t+11|0,_=T1(A),r>>>0<=_>>>0||(e=e+i|0,o=_+1|0,o&&b0(e,A,o),B=r-_|0,B>>>0<4))break t;for(o=_+e|0,h[o|0]=36,h[o+1|0]=109,h[o+2|0]=61,h[o+3|0]=0,_=n[u+44>>2],e=10;;){_:{if(r=e,e=e-1|0,l=e+(t+22|0)|0,A=(_>>>0)/10|0,h[l|0]=_-E0(A,10)|48,_>>>0<10)break _;if(_=A,e)continue}break}if(_=11-r|0,_&&b0(t+11|0,l,_),e=t+11|0,h[e+_|0]=0,A=B-3|0,_=T1(e),A>>>0<=_>>>0||(r=o+3|0,o=_+1|0,o&&b0(r,e,o),B=A-_|0,B>>>0<4))break t;for(o=_+r|0,h[o|0]=44,h[o+1|0]=116,h[o+2|0]=61,h[o+3|0]=0,_=n[u+40>>2],e=10;;){_:{if(r=e,e=e-1|0,l=e+(t+22|0)|0,A=(_>>>0)/10|0,h[l|0]=_-E0(A,10)|48,_>>>0<10)break _;if(_=A,e)continue}break}if(_=11-r|0,_&&b0(t+11|0,l,_),e=t+11|0,h[e+_|0]=0,A=B-3|0,_=T1(e),A>>>0<=_>>>0||(r=o+3|0,o=_+1|0,o&&b0(r,e,o),B=A-_|0,B>>>0<4))break t;for(o=_+r|0,h[o|0]=44,h[o+1|0]=112,h[o+2|0]=61,h[o+3|0]=0,_=n[u+48>>2],e=10;;){_:{if(r=e,e=e-1|0,l=e+(t+22|0)|0,A=(_>>>0)/10|0,h[l|0]=_-E0(A,10)|48,_>>>0<10)break _;if(_=A,e)continue}break}if(_=11-r|0,_&&b0(t+11|0,l,_),e=t+11|0,h[e+_|0]=0,A=B-3|0,_=T1(e),A>>>0<=_>>>0||(r=o+3|0,o=_+1|0,o&&b0(r,e,o),A=A-_|0,A>>>0<2)||(_=_+r|0,h[_|0]=36,h[_+1|0]=0,e=_+1|0,r=A-1|0,!LA(e,r,n[u+16>>2],n[u+20>>2],3)))break t;if(_=-31,A=r,r=T1(e),A=A-r|0,A>>>0<2)break e;_=e+r|0,h[_|0]=36,h[_+1|0]=0,_=LA(_+1|0,A-1|0,n[u>>2],n[u+4>>2],3)?0:-31;break e}_=-31}if(F=t+32|0,!_)break n;Y0(j,32),Y0(i,128),_=-31;break A}Y0(j,32),_=0}$2(j)}return F=y- -64|0,_}function Or(_,e){var r=0,A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0;return r=F-512|0,F=r,A=-1,i=s[e+31|0],t=s[e|0],(((((i^-1)&127|s[e+1|0]&(s[e+2|0]&(s[e+3|0]&(s[e+4|0]&(s[e+5|0]&(s[e+6|0]&(s[e+7|0]&(s[e+8|0]&(s[e+9|0]&(s[e+10|0]&(s[e+11|0]&(s[e+12|0]&(s[e+13|0]&(s[e+14|0]&(s[e+15|0]&(s[e+16|0]&(s[e+17|0]&(s[e+18|0]&(s[e+19|0]&(s[e+20|0]&(s[e+21|0]&(s[e+22|0]&(s[e+23|0]&(s[e+24|0]&(s[e+25|0]&(s[e+26|0]&(s[e+27|0]&(s[e+28|0]&(s[e+29|0]&s[e+30|0]))))))))))))))))))))))))))))^-1)&255)-1&236-t)>>>8|(t|s[41218]>>>2^i>>>7))&1||(i=r+336|0,qr(i,e),N(r+288|0,i),e=n[r+324>>2],n[r+276>>2]=0-e,A=n[r+320>>2],n[r+272>>2]=0-A,t=n[r+316>>2],n[r+268>>2]=0-t,o=n[r+312>>2],n[r+264>>2]=0-o,y=n[r+308>>2],n[r+260>>2]=0-y,u=n[r+304>>2],n[r+256>>2]=0-u,B=n[r+300>>2],n[r+252>>2]=0-B,l=n[r+296>>2],n[r+248>>2]=0-l,j=n[r+292>>2],n[r+244>>2]=0-j,v=n[r+288>>2],n[r+240>>2]=1-v,f=r+144|0,m=r+240|0,N(f,m),n[r+228>>2]=e,n[r+224>>2]=A,n[r+220>>2]=t,n[r+216>>2]=o,n[r+212>>2]=y,n[r+208>>2]=u,n[r+204>>2]=B,n[r+200>>2]=l,n[r+196>>2]=j,n[r+192>>2]=v+1,A=r+96|0,o=r+192|0,N(A,o),e=r+48|0,r0(e,1584,f),t=n[r+96>>2],y=n[r+48>>2],u=n[r+100>>2],B=n[r+52>>2],l=n[r+104>>2],j=n[r+56>>2],v=n[r+108>>2],f=n[r+60>>2],g=n[r+112>>2],T=n[r+64>>2],M=n[r+116>>2],C=n[r+68>>2],G=n[r+120>>2],d=n[r+72>>2],X=n[r+124>>2],K=n[r+76>>2],O=n[r+128>>2],U=n[r+80>>2],n[r+84>>2]=0-(n[r+84>>2]+n[r+132>>2]|0),n[r+80>>2]=0-(O+U|0),n[r+76>>2]=0-(X+K|0),n[r+72>>2]=0-(G+d|0),n[r+68>>2]=0-(M+C|0),n[r+64>>2]=0-(g+T|0),n[r+60>>2]=0-(v+f|0),n[r+56>>2]=0-(l+j|0),n[r+52>>2]=0-(u+B|0),n[r+48>>2]=0-(t+y|0),r0(r,e,A),n[r+388>>2]=0,n[r+392>>2]=0,n[r+384>>2]=1,n[r+396>>2]=0,n[r+400>>2]=0,n[r+404>>2]=0,n[r+408>>2]=0,n[r+412>>2]=0,n[r+416>>2]=0,n[r+420>>2]=0,t=r+432|0,T=YA(t,r+384|0,r),r0(_,t,o),A=_+40|0,r0(A,t,_),r0(A,A,e),r0(_,_,i),i=n[_+36>>2]<<1,n[_+36>>2]=i,t=n[_+32>>2]<<1,n[_+32>>2]=t,o=n[_+28>>2]<<1,n[_+28>>2]=o,y=n[_+24>>2]<<1,n[_+24>>2]=y,u=n[_+20>>2]<<1,n[_+20>>2]=u,B=n[_+16>>2]<<1,n[_+16>>2]=B,l=n[_+12>>2]<<1,n[_+12>>2]=l,j=n[_+8>>2]<<1,n[_+8>>2]=j,v=n[_+4>>2]<<1,n[_+4>>2]=v,f=n[_>>2]<<1,n[_>>2]=f,g=r+480|0,G2(g,_),e=0-(h[r+480|0]&1)|0,n[_+36>>2]=i^e&(i^0-i),n[_+32>>2]=t^e&(t^0-t),n[_+28>>2]=o^e&(o^0-o),n[_+24>>2]=y^e&(y^0-y),n[_+20>>2]=u^e&(u^0-u),n[_+16>>2]=B^e&(B^0-B),n[_+12>>2]=l^e&(l^0-l),n[_+8>>2]=j^e&(j^0-j),n[_+4>>2]=v^e&(v^0-v),n[_>>2]=f^e&(f^0-f),r0(A,m,A),n[_+84>>2]=0,n[_+88>>2]=0,n[_+80>>2]=1,n[_+92>>2]=0,n[_+96>>2]=0,n[_+100>>2]=0,n[_+104>>2]=0,n[_+108>>2]=0,n[_+112>>2]=0,n[_+116>>2]=0,e=_+120|0,r0(e,_,A),G2(g,e),_=s[r+480|0],G2(g,A),A=0-(n1(g,32)|(1-T|_&1))|0),F=r+512|0,A}function A_(_,e,r,A,t,i,o,y,u,B){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0,i=i|0,o=o|0,y=y|0,u=u|0,B=B|0;var l=0,j=0,v=0,f=0,g=0,T=0;l=F-384|0,F=l,r&&(n[r>>2]=0,n[r+4>>2]=0);r:{if(v=0|t,!i&v>>>0<4294967279){f=l+16|0,t=_+32|0,vr(f,64,0,t,_),j=l+80|0,w1(j,f),Y0(f,64),g=o,o=y|T,j2(j,g,o,u),j2(j,39312,0-o&15,0),n[l+16>>2]=0,n[l+20>>2]=0,n[l+72>>2]=0,n[l+76>>2]=0,n[l+64>>2]=0,n[l+68>>2]=0,n[l+56>>2]=0,n[l+60>>2]=0,n[l+48>>2]=0,n[l+52>>2]=0,n[l+40>>2]=0,n[l+44>>2]=0,n[l+32>>2]=0,n[l+36>>2]=0,n[l+24>>2]=0,n[l+28>>2]=0,h[l+16|0]=B,Mr(f,f,64,0,t,1,_),j2(j,f,64,0),h[e|0]=s[l+16|0],e=e+1|0,Mr(e,A,v,i,t,2,_),j2(j,e,v,i),j2(j,39312,v&15,0),n[l+8>>2]=o,n[l+12>>2]=u,A=l+8|0,j2(j,A,8,0),n[l+8>>2]=v- -64,n[l+12>>2]=i-((v>>>0<4294967232)-1|0),j2(j,A,8,0),e=e+v|0,m1(j,e),Y0(j,256),h[_+36|0]=s[_+36|0]^s[e|0],h[_+37|0]=s[_+37|0]^s[e+1|0],h[_+38|0]=s[_+38|0]^s[e+2|0],h[_+39|0]=s[_+39|0]^s[e+3|0],h[_+40|0]=s[_+40|0]^s[e+4|0],h[_+41|0]=s[_+41|0]^s[e+5|0],h[_+42|0]=s[_+42|0]^s[e+6|0],h[_+43|0]=s[_+43|0]^s[e+7|0],an(t);A:{if(!(B&2)&&!n1(t,4))break A;e=s[_+28|0]|s[_+29|0]<<8|(s[_+30|0]<<16|s[_+31|0]<<24),n[l+360>>2]=s[_+24|0]|s[_+25|0]<<8|(s[_+26|0]<<16|s[_+27|0]<<24),n[l+364>>2]=e,e=s[_+20|0]|s[_+21|0]<<8|(s[_+22|0]<<16|s[_+23|0]<<24),n[l+352>>2]=s[_+16|0]|s[_+17|0]<<8|(s[_+18|0]<<16|s[_+19|0]<<24),n[l+356>>2]=e,e=s[_+12|0]|s[_+13|0]<<8|(s[_+14|0]<<16|s[_+15|0]<<24),n[l+344>>2]=s[_+8|0]|s[_+9|0]<<8|(s[_+10|0]<<16|s[_+11|0]<<24),n[l+348>>2]=e,e=s[_+4|0]|s[_+5|0]<<8|(s[_+6|0]<<16|s[_+7|0]<<24),n[l+336>>2]=s[_|0]|s[_+1|0]<<8|(s[_+2|0]<<16|s[_+3|0]<<24),n[l+340>>2]=e,e=s[_+40|0]|s[_+41|0]<<8|(s[_+42|0]<<16|s[_+43|0]<<24),n[l+368>>2]=s[_+36|0]|s[_+37|0]<<8|(s[_+38|0]<<16|s[_+39|0]<<24),n[l+372>>2]=e,e=l+336|0,nA(e,e,40,0,t,_),e=n[l+364>>2],A=n[l+360>>2],h[_+24|0]=A,h[_+25|0]=A>>>8,h[_+26|0]=A>>>16,h[_+27|0]=A>>>24,h[_+28|0]=e,h[_+29|0]=e>>>8,h[_+30|0]=e>>>16,h[_+31|0]=e>>>24,e=n[l+356>>2],A=n[l+352>>2],h[_+16|0]=A,h[_+17|0]=A>>>8,h[_+18|0]=A>>>16,h[_+19|0]=A>>>24,h[_+20|0]=e,h[_+21|0]=e>>>8,h[_+22|0]=e>>>16,h[_+23|0]=e>>>24,e=n[l+348>>2],A=n[l+344>>2],h[_+8|0]=A,h[_+9|0]=A>>>8,h[_+10|0]=A>>>16,h[_+11|0]=A>>>24,h[_+12|0]=e,h[_+13|0]=e>>>8,h[_+14|0]=e>>>16,h[_+15|0]=e>>>24,e=n[l+340>>2],A=n[l+336>>2],h[_|0]=A,h[_+1|0]=A>>>8,h[_+2|0]=A>>>16,h[_+3|0]=A>>>24,h[_+4|0]=e,h[_+5|0]=e>>>8,h[_+6|0]=e>>>16,h[_+7|0]=e>>>24,e=n[l+368>>2],A=n[l+372>>2],h[t|0]=1,h[t+1|0]=0,h[t+2|0]=0,h[t+3|0]=0,h[_+36|0]=e,h[_+37|0]=e>>>8,h[_+38|0]=e>>>16,h[_+39|0]=e>>>24,h[_+40|0]=A,h[_+41|0]=A>>>8,h[_+42|0]=A>>>16,h[_+43|0]=A>>>24}r&&(_=v+17|0,i=_>>>0<17?i+1|0:i,n[r>>2]=_,n[r+4>>2]=i),F=l+384|0;break r}S2(),c2()}return 0}function SA(_,e,r,A){var t=0,i=0,o=0;t=F,o=t,t=t-576&-64,F=t,n[t+188>>2]=e;r:{if(e>>>0<=64){if(i=t+192|0,(M1(i,0,0,e)|0)<0)break r;(C2(i,t+188|0,4,0)|0)<0,(C2(i,r,A,0)|0)<0,I1(i,_,e);break r}if(i=t+192|0,(M1(i,0,0,64)|0)<0||((C2(i,t+188|0,4,0)|0)<0,(C2(i,r,A,0)|0)<0,(I1(i,t+112|0,64)|0)<0))break r;if(r=n[t+140>>2],A=n[t+136>>2],h[_+24|0]=A,h[_+25|0]=A>>>8,h[_+26|0]=A>>>16,h[_+27|0]=A>>>24,h[_+28|0]=r,h[_+29|0]=r>>>8,h[_+30|0]=r>>>16,h[_+31|0]=r>>>24,r=n[t+132>>2],A=n[t+128>>2],h[_+16|0]=A,h[_+17|0]=A>>>8,h[_+18|0]=A>>>16,h[_+19|0]=A>>>24,h[_+20|0]=r,h[_+21|0]=r>>>8,h[_+22|0]=r>>>16,h[_+23|0]=r>>>24,r=n[t+124>>2],A=n[t+120>>2],h[_+8|0]=A,h[_+9|0]=A>>>8,h[_+10|0]=A>>>16,h[_+11|0]=A>>>24,h[_+12|0]=r,h[_+13|0]=r>>>8,h[_+14|0]=r>>>16,h[_+15|0]=r>>>24,r=n[t+116>>2],A=n[t+112>>2],h[_|0]=A,h[_+1|0]=A>>>8,h[_+2|0]=A>>>16,h[_+3|0]=A>>>24,h[_+4|0]=r,h[_+5|0]=r>>>8,h[_+6|0]=r>>>16,h[_+7|0]=r>>>24,_=_+32|0,e=e-32|0,e>>>0>=65)for(;;){if(r=n[t+172>>2],n[t+104>>2]=n[t+168>>2],n[t+108>>2]=r,r=n[t+164>>2],n[t+96>>2]=n[t+160>>2],n[t+100>>2]=r,r=n[t+156>>2],n[t+88>>2]=n[t+152>>2],n[t+92>>2]=r,r=n[t+148>>2],n[t+80>>2]=n[t+144>>2],n[t+84>>2]=r,r=n[t+140>>2],n[t+72>>2]=n[t+136>>2],n[t+76>>2]=r,r=n[t+132>>2],n[t+64>>2]=n[t+128>>2],n[t+68>>2]=r,r=n[t+124>>2],n[t+56>>2]=n[t+120>>2],n[t+60>>2]=r,r=n[t+116>>2],n[t+48>>2]=n[t+112>>2],n[t+52>>2]=r,(Z6(t+112|0,64,t+48|0,64,0,0,0)|0)<0)break r;if(r=n[t+140>>2],A=n[t+136>>2],h[_+24|0]=A,h[_+25|0]=A>>>8,h[_+26|0]=A>>>16,h[_+27|0]=A>>>24,h[_+28|0]=r,h[_+29|0]=r>>>8,h[_+30|0]=r>>>16,h[_+31|0]=r>>>24,r=n[t+132>>2],A=n[t+128>>2],h[_+16|0]=A,h[_+17|0]=A>>>8,h[_+18|0]=A>>>16,h[_+19|0]=A>>>24,h[_+20|0]=r,h[_+21|0]=r>>>8,h[_+22|0]=r>>>16,h[_+23|0]=r>>>24,r=n[t+124>>2],A=n[t+120>>2],h[_+8|0]=A,h[_+9|0]=A>>>8,h[_+10|0]=A>>>16,h[_+11|0]=A>>>24,h[_+12|0]=r,h[_+13|0]=r>>>8,h[_+14|0]=r>>>16,h[_+15|0]=r>>>24,r=n[t+116>>2],A=n[t+112>>2],h[_|0]=A,h[_+1|0]=A>>>8,h[_+2|0]=A>>>16,h[_+3|0]=A>>>24,h[_+4|0]=r,h[_+5|0]=r>>>8,h[_+6|0]=r>>>16,h[_+7|0]=r>>>24,_=_+32|0,e=e-32|0,!(e>>>0>64))break}if(r=n[t+172>>2],n[t+104>>2]=n[t+168>>2],n[t+108>>2]=r,r=n[t+164>>2],n[t+96>>2]=n[t+160>>2],n[t+100>>2]=r,r=n[t+156>>2],n[t+88>>2]=n[t+152>>2],n[t+92>>2]=r,r=n[t+148>>2],n[t+80>>2]=n[t+144>>2],n[t+84>>2]=r,r=n[t+140>>2],n[t+72>>2]=n[t+136>>2],n[t+76>>2]=r,r=n[t+132>>2],n[t+64>>2]=n[t+128>>2],n[t+68>>2]=r,r=n[t+124>>2],n[t+56>>2]=n[t+120>>2],n[t+60>>2]=r,r=n[t+116>>2],n[t+48>>2]=n[t+112>>2],n[t+52>>2]=r,r=t+112|0,!e|(Z6(r,e,t+48|0,64,0,0,0)|0)<0)break r;b0(_,r,e)}Y0(t+192|0,384),F=o}function Q4(_,e,r,A,t,i,o,y,u,B,l){var j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0,x=0,z=0,$=0;if(v=q(u,0,y,0),T=p,!T&v>>>0>=1073741824|T||(o|0)==1|o>>>0>1)return n[10172]=22,-1;for(v=i,g=o;;){if(v|g){T=v,v=v&v-1,g=g-!T&g,M=M+1|0,m=M?m:m+1|0;continue}break}if(p=m,!(!p&M>>>0<2&(!o&i>>>0>=2|(o|0)!=0))||!(u&&y))return n[10172]=28,-1;r:{A:{if(!(33554431/(u>>>0)>>>0<y>>>0|y>>>0>16777215)&&!o&33554431/(y>>>0)>>>0>=i>>>0)break A;break r}if(M=y<<7,X=E0(M,u),d=E0(i,M),v=d+X|0,X>>>0>v>>>0||(m=y<<8,v=(m+v|0)- -64|0,v>>>0<=m>>>0))break r;A:{if(v>>>0>p1[_+8>>2]&&(G=-1,eA(_),T=F-16|0,F=T,g=E4(T+12|0,v),n[10172]=g,g=g?0:n[T+12>>2],n[_+4>>2]=g,n[_>>2]=g,n[_+8>>2]=g?v:0,F=T+16|0,!g))break A;for(K=n[_+4>>2],nn(e,r,A,t,K,X),G=X+K|0,v=G+d|0,T=v+(y<<7)|0,z=(T+M|0)+-64|0,x=i-1|0,g=y<<5,d=v+m|0,$=(v+M|0)+-64|0;;){for(m=E0(M,U)+K|0,A=0;_=A<<2,t=_+m|0,n[_+v>>2]=s[t|0]|s[t+1|0]<<8|(s[t+2|0]<<16|s[t+3|0]<<24),t=_|4,j=t+v|0,t=t+m|0,n[j>>2]=s[t|0]|s[t+1|0]<<8|(s[t+2|0]<<16|s[t+3|0]<<24),t=_|8,j=t+v|0,t=t+m|0,n[j>>2]=s[t|0]|s[t+1|0]<<8|(s[t+2|0]<<16|s[t+3|0]<<24),_=_|12,t=_+v|0,_=_+m|0,n[t>>2]=s[_|0]|s[_+1|0]<<8|(s[_+2|0]<<16|s[_+3|0]<<24),A=A+4|0,(g|0)!=(A|0););for(_=0,A=0;t=!M,t||b0(G+(E0(_,g)<<2)|0,v,M),z6(v,T,d,y),t||b0(G+(E0(g,_|1)<<2)|0,T,M),z6(T,v,d,y),O=0,t=0,_=_+2|0,A=_>>>0<2?A+1|0:A,!!((o|0)==(A|0)&_>>>0<i>>>0|A>>>0<o>>>0););for(;;){for(_=G+(E0(g,x&n[$>>2])<<2)|0,A=0;j=A<<2,f=j+v|0,n[f>>2]=n[f>>2]^n[_+j>>2],f=j|4,C=f+v|0,n[C>>2]=n[C>>2]^n[_+f>>2],f=j|8,C=f+v|0,n[C>>2]=n[C>>2]^n[_+f>>2],j=j|12,f=j+v|0,n[f>>2]=n[f>>2]^n[_+j>>2],A=A+4|0,(g|0)!=(A|0););for(z6(v,T,d,y),_=G+(E0(g,x&n[z>>2])<<2)|0,A=0;j=A<<2,f=j+T|0,n[f>>2]=n[f>>2]^n[_+j>>2],f=j|4,C=f+T|0,n[C>>2]=n[C>>2]^n[_+f>>2],f=j|8,C=f+T|0,n[C>>2]=n[C>>2]^n[_+f>>2],j=j|12,f=j+T|0,n[f>>2]=n[f>>2]^n[_+j>>2],A=A+4|0,(g|0)!=(A|0););if(z6(T,v,d,y),A=0,O=O+2|0,_=O>>>0<2?t+1|0:t,t=_,!((o|0)==(_|0)&i>>>0>O>>>0|_>>>0<o>>>0))break}for(;_=A<<2,t=_+m|0,j=n[_+v>>2],h[t|0]=j,h[t+1|0]=j>>>8,h[t+2|0]=j>>>16,h[t+3|0]=j>>>24,j=_|4,t=j+m|0,j=n[v+j>>2],h[t|0]=j,h[t+1|0]=j>>>8,h[t+2|0]=j>>>16,h[t+3|0]=j>>>24,j=_|8,t=j+m|0,j=n[v+j>>2],h[t|0]=j,h[t+1|0]=j>>>8,h[t+2|0]=j>>>16,h[t+3|0]=j>>>24,t=_|12,_=t+m|0,t=n[t+v>>2],h[_|0]=t,h[_+1|0]=t>>>8,h[_+2|0]=t>>>16,h[_+3|0]=t>>>24,A=A+4|0,(g|0)!=(A|0););if(U=U+1|0,(U|0)==(u|0))break}nn(e,r,K,X,B,l),G=0}return G}return n[10172]=48,-1}function G4(_,e,r){_=_|0,e=e|0,r=r|0;var A=0,t=0;A=F-192|0,F=A,n[A+96>>2]=0,n[A+100>>2]=0,n[A+104>>2]=0,n[A+108>>2]=0,n[A+112>>2]=0,n[A+116>>2]=0,n[A+120>>2]=0,n[A+124>>2]=0,t=s[e+4|0]|s[e+5|0]<<8|(s[e+6|0]<<16|s[e+7|0]<<24),n[A+64>>2]=s[e|0]|s[e+1|0]<<8|(s[e+2|0]<<16|s[e+3|0]<<24),n[A+68>>2]=t,t=s[e+12|0]|s[e+13|0]<<8|(s[e+14|0]<<16|s[e+15|0]<<24),n[A+72>>2]=s[e+8|0]|s[e+9|0]<<8|(s[e+10|0]<<16|s[e+11|0]<<24),n[A+76>>2]=t,t=s[e+20|0]|s[e+21|0]<<8|(s[e+22|0]<<16|s[e+23|0]<<24),n[A+80>>2]=s[e+16|0]|s[e+17|0]<<8|(s[e+18|0]<<16|s[e+19|0]<<24),n[A+84>>2]=t,t=s[e+28|0]|s[e+29|0]<<8|(s[e+30|0]<<16|s[e+31|0]<<24),n[A+88>>2]=s[e+24|0]|s[e+25|0]<<8|(s[e+26|0]<<16|s[e+27|0]<<24),n[A+92>>2]=t,n[A+32>>2]=0,n[A+36>>2]=0,n[A+40>>2]=0,n[A+44>>2]=0,n[A+48>>2]=0,n[A+52>>2]=0,n[A+56>>2]=0,n[A+60>>2]=0,e=s[r+4|0]|s[r+5|0]<<8|(s[r+6|0]<<16|s[r+7|0]<<24),n[A>>2]=s[r|0]|s[r+1|0]<<8|(s[r+2|0]<<16|s[r+3|0]<<24),n[A+4>>2]=e,e=s[r+12|0]|s[r+13|0]<<8|(s[r+14|0]<<16|s[r+15|0]<<24),n[A+8>>2]=s[r+8|0]|s[r+9|0]<<8|(s[r+10|0]<<16|s[r+11|0]<<24),n[A+12>>2]=e,e=s[r+20|0]|s[r+21|0]<<8|(s[r+22|0]<<16|s[r+23|0]<<24),n[A+16>>2]=s[r+16|0]|s[r+17|0]<<8|(s[r+18|0]<<16|s[r+19|0]<<24),n[A+20>>2]=e,e=s[r+28|0]|s[r+29|0]<<8|(s[r+30|0]<<16|s[r+31|0]<<24),n[A+24>>2]=s[r+24|0]|s[r+25|0]<<8|(s[r+26|0]<<16|s[r+27|0]<<24),n[A+28>>2]=e,Sn(A- -64|0,A),r=n[A+124>>2],n[A+184>>2]=n[A+120>>2],n[A+188>>2]=r,e=n[A+116>>2],n[A+176>>2]=n[A+112>>2],n[A+180>>2]=e,e=n[A+108>>2],n[A+168>>2]=n[A+104>>2],n[A+172>>2]=e,e=n[A+100>>2],n[A+160>>2]=n[A+96>>2],n[A+164>>2]=e,e=n[A+92>>2],n[A+152>>2]=n[A+88>>2],n[A+156>>2]=e,e=n[A+84>>2],n[A+144>>2]=n[A+80>>2],n[A+148>>2]=e,e=n[A+76>>2],n[A+136>>2]=n[A+72>>2],n[A+140>>2]=e,e=n[A+68>>2],n[A+128>>2]=n[A+64>>2],n[A+132>>2]=e,e=A+128|0,er(e),t=n[A+156>>2],r=n[A+152>>2],h[_+24|0]=r,h[_+25|0]=r>>>8,h[_+26|0]=r>>>16,h[_+27|0]=r>>>24,h[_+28|0]=t,h[_+29|0]=t>>>8,h[_+30|0]=t>>>16,h[_+31|0]=t>>>24,t=n[A+148>>2],r=n[A+144>>2],h[_+16|0]=r,h[_+17|0]=r>>>8,h[_+18|0]=r>>>16,h[_+19|0]=r>>>24,h[_+20|0]=t,h[_+21|0]=t>>>8,h[_+22|0]=t>>>16,h[_+23|0]=t>>>24,t=n[A+140>>2],r=n[A+136>>2],h[_+8|0]=r,h[_+9|0]=r>>>8,h[_+10|0]=r>>>16,h[_+11|0]=r>>>24,h[_+12|0]=t,h[_+13|0]=t>>>8,h[_+14|0]=t>>>16,h[_+15|0]=t>>>24,t=n[A+132>>2],r=n[A+128>>2],h[_|0]=r,h[_+1|0]=r>>>8,h[_+2|0]=r>>>16,h[_+3|0]=r>>>24,h[_+4|0]=t,h[_+5|0]=t>>>8,h[_+6|0]=t>>>16,h[_+7|0]=t>>>24,Y0(e,64),F=A+192|0}function z6(_,e,r,A){var t=0,i=0,o=0,y=0,u=0;for(t=((A<<7)+_|0)+-64|0,i=n[t+60>>2],n[r+56>>2]=n[t+56>>2],n[r+60>>2]=i,i=n[t+52>>2],n[r+48>>2]=n[t+48>>2],n[r+52>>2]=i,i=n[t+44>>2],n[r+40>>2]=n[t+40>>2],n[r+44>>2]=i,i=n[t+36>>2],n[r+32>>2]=n[t+32>>2],n[r+36>>2]=i,i=n[t+28>>2],n[r+24>>2]=n[t+24>>2],n[r+28>>2]=i,i=n[t+20>>2],n[r+16>>2]=n[t+16>>2],n[r+20>>2]=i,i=n[t+12>>2],n[r+8>>2]=n[t+8>>2],n[r+12>>2]=i,i=n[t+4>>2],n[r>>2]=n[t>>2],n[r+4>>2]=i,i=A<<6,u=A<<1;A=(y<<6)+_|0,n[r>>2]=n[r>>2]^n[A>>2],n[r+4>>2]=n[r+4>>2]^n[A+4>>2],n[r+8>>2]=n[r+8>>2]^n[A+8>>2],n[r+12>>2]=n[r+12>>2]^n[A+12>>2],n[r+16>>2]=n[r+16>>2]^n[A+16>>2],n[r+20>>2]=n[r+20>>2]^n[A+20>>2],n[r+24>>2]=n[r+24>>2]^n[A+24>>2],n[r+28>>2]=n[r+28>>2]^n[A+28>>2],n[r+32>>2]=n[r+32>>2]^n[A+32>>2],n[r+36>>2]=n[r+36>>2]^n[A+36>>2],n[r+40>>2]=n[r+40>>2]^n[A+40>>2],n[r+44>>2]=n[r+44>>2]^n[A+44>>2],n[r+48>>2]=n[r+48>>2]^n[A+48>>2],n[r+52>>2]=n[r+52>>2]^n[A+52>>2],n[r+56>>2]=n[r+56>>2]^n[A+56>>2],n[r+60>>2]=n[r+60>>2]^n[A+60>>2],V4(r),o=n[r+60>>2],t=(y<<5)+e|0,n[t+56>>2]=n[r+56>>2],n[t+60>>2]=o,o=n[r+52>>2],n[t+48>>2]=n[r+48>>2],n[t+52>>2]=o,o=n[r+44>>2],n[t+40>>2]=n[r+40>>2],n[t+44>>2]=o,o=n[r+36>>2],n[t+32>>2]=n[r+32>>2],n[t+36>>2]=o,o=n[r+28>>2],n[t+24>>2]=n[r+24>>2],n[t+28>>2]=o,o=n[r+20>>2],n[t+16>>2]=n[r+16>>2],n[t+20>>2]=o,o=n[r+12>>2],n[t+8>>2]=n[r+8>>2],n[t+12>>2]=o,o=n[r+4>>2],n[t>>2]=n[r>>2],n[t+4>>2]=o,n[r>>2]=n[r>>2]^n[A- -64>>2],n[r+4>>2]=n[r+4>>2]^n[A+68>>2],n[r+8>>2]=n[r+8>>2]^n[A+72>>2],n[r+12>>2]=n[r+12>>2]^n[A+76>>2],n[r+16>>2]=n[r+16>>2]^n[A+80>>2],n[r+20>>2]=n[r+20>>2]^n[A+84>>2],n[r+24>>2]=n[r+24>>2]^n[A+88>>2],n[r+28>>2]=n[r+28>>2]^n[A+92>>2],n[r+32>>2]=n[r+32>>2]^n[A+96>>2],n[r+36>>2]=n[r+36>>2]^n[A+100>>2],n[r+40>>2]=n[r+40>>2]^n[A+104>>2],n[r+44>>2]=n[r+44>>2]^n[A+108>>2],n[r+48>>2]=n[r+48>>2]^n[A+112>>2],n[r+52>>2]=n[r+52>>2]^n[A+116>>2],n[r+56>>2]=n[r+56>>2]^n[A+120>>2],n[r+60>>2]=n[r+60>>2]^n[A+124>>2],V4(r),A=t+i|0,t=n[r+60>>2],n[A+56>>2]=n[r+56>>2],n[A+60>>2]=t,t=n[r+52>>2],n[A+48>>2]=n[r+48>>2],n[A+52>>2]=t,t=n[r+44>>2],n[A+40>>2]=n[r+40>>2],n[A+44>>2]=t,t=n[r+36>>2],n[A+32>>2]=n[r+32>>2],n[A+36>>2]=t,t=n[r+28>>2],n[A+24>>2]=n[r+24>>2],n[A+28>>2]=t,t=n[r+20>>2],n[A+16>>2]=n[r+16>>2],n[A+20>>2]=t,t=n[r+12>>2],n[A+8>>2]=n[r+8>>2],n[A+12>>2]=t,t=n[r+4>>2],n[A>>2]=n[r>>2],n[A+4>>2]=t,y=y+2|0,u>>>0>y>>>0;);}function IA(_,e,r,A){var t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0,x=0,z=0,$=0,J=0;for(U=s[_+80|0]?0:16777216,g=n[_+36>>2],v=n[_+32>>2],f=n[_+28>>2],l=n[_+24>>2],j=n[_+20>>2],m=n[_+4>>2],x=E0(m,5),C=n[_+8>>2],K=E0(C,5),d=n[_+12>>2],X=E0(d,5),O=n[_+16>>2],G=E0(O,5),M=n[_>>2];o=((s[e+3|0]|s[e+4|0]<<8|(s[e+5|0]<<16|s[e+6|0]<<24))>>>2&67108863)+l|0,t=q(o,0,d,0),u=p,l=((s[e|0]|s[e+1|0]<<8|(s[e+2|0]<<16|s[e+3|0]<<24))&67108863)+j|0,y=q(l,0,O,0),j=y+t|0,t=p+u|0,t=y>>>0>j>>>0?t+1|0:t,f=((s[e+6|0]|s[e+7|0]<<8|(s[e+8|0]<<16|s[e+9|0]<<24))>>>4&67108863)+f|0,u=q(f,0,C,0),j=u+j|0,t=p+t|0,t=u>>>0>j>>>0?t+1|0:t,v=((s[e+9|0]|s[e+10|0]<<8|(s[e+11|0]<<16|s[e+12|0]<<24))>>>6|0)+v|0,u=q(v,0,m,0),j=u+j|0,t=p+t|0,t=u>>>0>j>>>0?t+1|0:t,g=g+U+((s[e+12|0]|s[e+13|0]<<8|(s[e+14|0]<<16|s[e+15|0]<<24))>>>8)|0,u=q(g,0,M,0),j=u+j|0,t=p+t|0,z=j,j=u>>>0>j>>>0?t+1|0:t,t=q(o,0,C,0),u=p,y=q(l,0,d,0),t=y+t|0,i=p+u|0,i=t>>>0<y>>>0?i+1|0:i,y=q(f,0,m,0),u=y+t|0,t=p+i|0,t=y>>>0>u>>>0?t+1|0:t,y=q(v,0,M,0),u=y+u|0,t=p+t|0,t=y>>>0>u>>>0?t+1|0:t,y=q(g,0,G,0),u=y+u|0,t=p+t|0,$=u,u=y>>>0>u>>>0?t+1|0:t,t=q(o,0,m,0),B=p,i=q(l,0,C,0),y=i+t|0,t=p+B|0,t=i>>>0>y>>>0?t+1|0:t,B=q(f,0,M,0),y=B+y|0,i=p+t|0,i=y>>>0<B>>>0?i+1|0:i,B=q(v,0,G,0),y=B+y|0,t=p+i|0,t=y>>>0<B>>>0?t+1|0:t,B=q(g,0,X,0),y=B+y|0,t=p+t|0,J=y,y=y>>>0<B>>>0?t+1|0:t,t=q(o,0,M,0),i=p,T=q(l,0,m,0),B=T+t|0,t=p+i|0,t=B>>>0<T>>>0?t+1|0:t,i=q(f,0,G,0),B=i+B|0,t=p+t|0,t=i>>>0>B>>>0?t+1|0:t,T=q(v,0,X,0),B=T+B|0,i=p+t|0,i=B>>>0<T>>>0?i+1|0:i,T=q(g,0,K,0),B=T+B|0,t=p+i|0,t=B>>>0<T>>>0?t+1|0:t,T=B,B=t,t=q(o,0,G,0),i=p,l=q(l,0,M,0),o=l+t|0,t=p+i|0,t=o>>>0<l>>>0?t+1|0:t,l=q(f,0,X,0),o=l+o|0,t=p+t|0,t=o>>>0<l>>>0?t+1|0:t,l=q(v,0,K,0),o=l+o|0,t=p+t|0,t=o>>>0<l>>>0?t+1|0:t,l=q(g,0,x,0),o=l+o|0,i=p+t|0,i=o>>>0<l>>>0?i+1|0:i,l=o,f=(i&67108863)<<6|o>>>26,o=f+T|0,t=B,t=o>>>0<f>>>0?t+1|0:t,f=o,v=(t&67108863)<<6|o>>>26,o=v+J|0,t=y,t=o>>>0<v>>>0?t+1|0:t,v=o,i=u,o=(t&67108863)<<6|o>>>26,t=o+$|0,g=t,i=t>>>0<o>>>0?i+1|0:i,u=(i&67108863)<<6|t>>>26,o=u+z|0,t=j,t=E0(((o>>>0<u>>>0?t+1|0:t)&67108863)<<6|o>>>26,5)+(l&67108863)|0,l=(f&67108863)+(t>>>26|0)|0,f=v&67108863,v=g&67108863,g=o&67108863,j=t&67108863,e=e+16|0,A=A-(r>>>0<16)|0,r=r-16|0,!!(!A&r>>>0>15|A););n[_+36>>2]=g,n[_+32>>2]=v,n[_+28>>2]=f,n[_+24>>2]=l,n[_+20>>2]=j}function j1(_,e,r,A){_=_|0,e=e|0,r=r|0,A=A|0;var t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0;r:{if(!A){i=2036477234,o=857760878,t=1634760805,l=1797285236;break r}i=s[A+8|0]|s[A+9|0]<<8|(s[A+10|0]<<16|s[A+11|0]<<24),o=s[A+4|0]|s[A+5|0]<<8|(s[A+6|0]<<16|s[A+7|0]<<24),t=s[A|0]|s[A+1|0]<<8|(s[A+2|0]<<16|s[A+3|0]<<24),l=s[A+12|0]|s[A+13|0]<<8|(s[A+14|0]<<16|s[A+15|0]<<24)}for(y=s[e+12|0]|s[e+13|0]<<8|(s[e+14|0]<<16|s[e+15|0]<<24),v=s[e+8|0]|s[e+9|0]<<8|(s[e+10|0]<<16|s[e+11|0]<<24),u=s[e+4|0]|s[e+5|0]<<8|(s[e+6|0]<<16|s[e+7|0]<<24),f=s[r+28|0]|s[r+29|0]<<8|(s[r+30|0]<<16|s[r+31|0]<<24),B=s[r+24|0]|s[r+25|0]<<8|(s[r+26|0]<<16|s[r+27|0]<<24),G=s[r+20|0]|s[r+21|0]<<8|(s[r+22|0]<<16|s[r+23|0]<<24),g=s[r+16|0]|s[r+17|0]<<8|(s[r+18|0]<<16|s[r+19|0]<<24),A=s[r+12|0]|s[r+13|0]<<8|(s[r+14|0]<<16|s[r+15|0]<<24),T=s[r+8|0]|s[r+9|0]<<8|(s[r+10|0]<<16|s[r+11|0]<<24),m=s[r+4|0]|s[r+5|0]<<8|(s[r+6|0]<<16|s[r+7|0]<<24),e=s[e|0]|s[e+1|0]<<8|(s[e+2|0]<<16|s[e+3|0]<<24),r=s[r|0]|s[r+1|0]<<8|(s[r+2|0]<<16|s[r+3|0]<<24);j=r,M=e,e=r+t|0,r=b(M^e,16),t=r+g|0,g=b(j^t,12),j=g,M=e+g|0,C=b(M^r,8),g=C+t|0,e=b(j^g,7),r=A+l|0,y=b(r^y,16),f=y+f|0,A=b(f^A,12),j=T,l=i+T|0,i=b(l^v,16),T=i+B|0,t=b(j^T,12),B=i,i=t+l|0,B=b(B^i,8),d=r+A|0,l=d+e|0,r=b(B^l,16),o=o+m|0,v=b(o^u,16),u=v+G|0,m=b(u^m,12),o=m+o|0,j=e,e=b(o^v,8),X=e+u|0,u=X+r|0,j=b(j^u,12),l=j+l|0,v=b(r^l,8),G=v+u|0,r=b(G^j,7),y=b(y^d,8),f=y+f|0,A=b(f^A,7),i=A+i|0,u=b(i^e,16),e=u+g|0,A=b(e^A,12),i=A+i|0,u=b(u^i,8),g=e+u|0,A=b(g^A,7),B=B+T|0,e=b(B^t,7),o=e+o|0,T=b(o^C,16),t=T+f|0,C=b(e^t,12),o=C+o|0,e=b(T^o,8),f=t+e|0,T=b(f^C,7),j=B,B=y,t=b(m^X,7),y=t+M|0,B=b(B^y,16),m=j+B|0,M=b(t^m,12),t=M+y|0,y=b(B^t,8),B=m+y|0,m=b(B^M,7),K=K+1|0,(K|0)!=10;);return h[_|0]=t,h[_+1|0]=t>>>8,h[_+2|0]=t>>>16,h[_+3|0]=t>>>24,h[_+28|0]=y,h[_+29|0]=y>>>8,h[_+30|0]=y>>>16,h[_+31|0]=y>>>24,h[_+24|0]=v,h[_+25|0]=v>>>8,h[_+26|0]=v>>>16,h[_+27|0]=v>>>24,h[_+20|0]=u,h[_+21|0]=u>>>8,h[_+22|0]=u>>>16,h[_+23|0]=u>>>24,h[_+16|0]=e,h[_+17|0]=e>>>8,h[_+18|0]=e>>>16,h[_+19|0]=e>>>24,h[_+12|0]=l,h[_+13|0]=l>>>8,h[_+14|0]=l>>>16,h[_+15|0]=l>>>24,h[_+8|0]=i,h[_+9|0]=i>>>8,h[_+10|0]=i>>>16,h[_+11|0]=i>>>24,h[_+4|0]=o,h[_+5|0]=o>>>8,h[_+6|0]=o>>>16,h[_+7|0]=o>>>24,0}function O2(_,e,r){var A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0,x=0,z=0,$=0,J=0,A0=0,n0=0,t0=0,_0=0;A=n[e+40>>2],t=n[e+4>>2],o=n[e+44>>2],y=n[e+8>>2],u=n[e+48>>2],B=n[e+12>>2],l=n[e+52>>2],j=n[e+16>>2],v=n[e+56>>2],f=n[e+20>>2],g=n[e+60>>2],T=n[e+24>>2],i=e- -64|0,m=n[i>>2],M=n[e+28>>2],C=n[e+68>>2],G=n[e+32>>2],d=n[e+72>>2],X=n[e>>2],n[_+36>>2]=n[e+36>>2]+n[e+76>>2],n[_+32>>2]=G+d,n[_+28>>2]=M+C,n[_+24>>2]=T+m,n[_+20>>2]=f+g,n[_+16>>2]=j+v,n[_+12>>2]=B+l,n[_+8>>2]=y+u,n[_+4>>2]=t+o,n[_>>2]=A+X,o=n[e+40>>2],A=n[e+4>>2],y=n[e+44>>2],u=n[e+8>>2],B=n[e+48>>2],l=n[e+12>>2],j=n[e+52>>2],v=n[e+16>>2],f=n[e+56>>2],g=n[e+20>>2],T=n[e+60>>2],m=n[e+24>>2],i=n[i>>2],t=n[e+28>>2],M=n[e+68>>2],C=n[e+32>>2],G=n[e+72>>2],d=n[e>>2],n[_+76>>2]=n[e+76>>2]-n[e+36>>2],n[_+72>>2]=G-C,n[_+68>>2]=M-t,t=_- -64|0,n[t>>2]=i-m,n[_+60>>2]=T-g,n[_+56>>2]=f-v,n[_+52>>2]=j-l,n[_+48>>2]=B-u,n[_+44>>2]=y-A,A=_+40|0,n[A>>2]=o-d,r0(_+80|0,_,r),r0(A,A,r+40|0),r0(_+120|0,r+120|0,e+120|0),r0(_,e+80|0,r+80|0),X=n[_+4>>2],U=n[_+8>>2],x=n[_+12>>2],z=n[_+16>>2],$=n[_+20>>2],J=n[_+24>>2],A0=n[_+28>>2],n0=n[_+32>>2],t0=n[_+36>>2],e=n[A>>2],r=n[_+80>>2],o=n[_+44>>2],y=n[_+84>>2],u=n[_+48>>2],B=n[_+88>>2],l=n[_+52>>2],j=n[_+92>>2],v=n[_+56>>2],f=n[_+96>>2],g=n[_+60>>2],T=n[_+100>>2],i=n[t>>2],m=n[_+104>>2],M=n[_+68>>2],C=n[_+108>>2],G=n[_+72>>2],d=n[_+112>>2],_0=n[_>>2],K=n[_+76>>2],O=n[_+116>>2],n[_+76>>2]=K+O,n[_+72>>2]=G+d,n[_+68>>2]=M+C,n[t>>2]=i+m,n[_+60>>2]=g+T,n[_+56>>2]=v+f,n[_+52>>2]=l+j,n[_+48>>2]=u+B,n[_+44>>2]=o+y,n[A>>2]=e+r,n[_+36>>2]=O-K,n[_+32>>2]=d-G,n[_+28>>2]=C-M,n[_+24>>2]=m-i,n[_+20>>2]=T-g,n[_+16>>2]=f-v,n[_+12>>2]=j-l,n[_+8>>2]=B-u,n[_+4>>2]=y-o,n[_>>2]=r-e,e=t0<<1,r=n[_+156>>2],n[_+156>>2]=e-r,A=n0<<1,t=n[_+152>>2],n[_+152>>2]=A-t,o=A0<<1,y=n[_+148>>2],n[_+148>>2]=o-y,u=J<<1,B=n[_+144>>2],n[_+144>>2]=u-B,l=$<<1,j=n[_+140>>2],n[_+140>>2]=l-j,v=z<<1,f=n[_+136>>2],n[_+136>>2]=v-f,g=x<<1,T=n[_+132>>2],n[_+132>>2]=g-T,i=U<<1,m=n[_+128>>2],n[_+128>>2]=i-m,M=X<<1,C=n[_+124>>2],n[_+124>>2]=M-C,G=_0<<1,d=n[_+120>>2],n[_+120>>2]=G-d,n[_+112>>2]=A+t,n[_+108>>2]=o+y,n[_+104>>2]=u+B,n[_+100>>2]=l+j,n[_+96>>2]=v+f,n[_+92>>2]=g+T,n[_+88>>2]=i+m,n[_+84>>2]=M+C,n[_+80>>2]=G+d,n[_+116>>2]=e+r}function $6(_,e,r){var A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0,x=0,z=0,$=0,J=0,A0=0,n0=0,t0=0,_0=0;A=n[e+40>>2],t=n[e+4>>2],o=n[e+44>>2],y=n[e+8>>2],u=n[e+48>>2],B=n[e+12>>2],l=n[e+52>>2],j=n[e+16>>2],v=n[e+56>>2],f=n[e+20>>2],g=n[e+60>>2],T=n[e+24>>2],i=e- -64|0,m=n[i>>2],M=n[e+28>>2],C=n[e+68>>2],G=n[e+32>>2],d=n[e+72>>2],X=n[e>>2],n[_+36>>2]=n[e+36>>2]+n[e+76>>2],n[_+32>>2]=G+d,n[_+28>>2]=M+C,n[_+24>>2]=T+m,n[_+20>>2]=f+g,n[_+16>>2]=j+v,n[_+12>>2]=B+l,n[_+8>>2]=y+u,n[_+4>>2]=t+o,n[_>>2]=A+X,o=n[e+40>>2],A=n[e+4>>2],y=n[e+44>>2],u=n[e+8>>2],B=n[e+48>>2],l=n[e+12>>2],j=n[e+52>>2],v=n[e+16>>2],f=n[e+56>>2],g=n[e+20>>2],T=n[e+60>>2],m=n[e+24>>2],i=n[i>>2],t=n[e+28>>2],M=n[e+68>>2],C=n[e+32>>2],G=n[e+72>>2],d=n[e>>2],n[_+76>>2]=n[e+76>>2]-n[e+36>>2],n[_+72>>2]=G-C,n[_+68>>2]=M-t,t=_- -64|0,n[t>>2]=i-m,n[_+60>>2]=T-g,n[_+56>>2]=f-v,n[_+52>>2]=j-l,n[_+48>>2]=B-u,n[_+44>>2]=y-A,A=_+40|0,n[A>>2]=o-d,r0(_+80|0,_,r+40|0),r0(A,A,r),r0(_+120|0,r+120|0,e+120|0),r0(_,e+80|0,r+80|0),X=n[_+4>>2],U=n[_+8>>2],x=n[_+12>>2],z=n[_+16>>2],$=n[_+20>>2],J=n[_+24>>2],A0=n[_+28>>2],n0=n[_+32>>2],t0=n[_+36>>2],e=n[A>>2],r=n[_+80>>2],o=n[_+44>>2],y=n[_+84>>2],u=n[_+48>>2],B=n[_+88>>2],l=n[_+52>>2],j=n[_+92>>2],v=n[_+56>>2],f=n[_+96>>2],g=n[_+60>>2],T=n[_+100>>2],i=n[t>>2],m=n[_+104>>2],M=n[_+68>>2],C=n[_+108>>2],G=n[_+72>>2],d=n[_+112>>2],_0=n[_>>2],K=n[_+76>>2],O=n[_+116>>2],n[_+76>>2]=K+O,n[_+72>>2]=G+d,n[_+68>>2]=M+C,n[t>>2]=i+m,n[_+60>>2]=g+T,n[_+56>>2]=v+f,n[_+52>>2]=l+j,n[_+48>>2]=u+B,n[_+44>>2]=o+y,n[A>>2]=e+r,n[_+36>>2]=O-K,n[_+32>>2]=d-G,n[_+28>>2]=C-M,n[_+24>>2]=m-i,n[_+20>>2]=T-g,n[_+16>>2]=f-v,n[_+12>>2]=j-l,n[_+8>>2]=B-u,n[_+4>>2]=y-o,n[_>>2]=r-e,e=n[_+156>>2],r=t0<<1,n[_+156>>2]=e+r,A=n[_+152>>2],t=n0<<1,n[_+152>>2]=A+t,o=n[_+148>>2],y=A0<<1,n[_+148>>2]=o+y,u=n[_+144>>2],B=J<<1,n[_+144>>2]=u+B,l=n[_+140>>2],j=$<<1,n[_+140>>2]=l+j,v=n[_+136>>2],f=z<<1,n[_+136>>2]=v+f,g=n[_+132>>2],T=x<<1,n[_+132>>2]=g+T,i=n[_+128>>2],m=U<<1,n[_+128>>2]=i+m,M=n[_+124>>2],C=X<<1,n[_+124>>2]=M+C,G=n[_+120>>2],d=_0<<1,n[_+120>>2]=G+d,n[_+112>>2]=t-A,n[_+108>>2]=y-o,n[_+104>>2]=B-u,n[_+100>>2]=j-l,n[_+96>>2]=f-v,n[_+92>>2]=T-g,n[_+88>>2]=m-i,n[_+84>>2]=C-M,n[_+80>>2]=d-G,n[_+116>>2]=r-e}function CA(_,e,r){var A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0,x=0,z=0,$=0,J=0,A0=0,n0=0,t0=0,_0=0;A=n[e+40>>2],t=n[e+4>>2],o=n[e+44>>2],y=n[e+8>>2],u=n[e+48>>2],B=n[e+12>>2],l=n[e+52>>2],j=n[e+16>>2],v=n[e+56>>2],f=n[e+20>>2],g=n[e+60>>2],T=n[e+24>>2],i=e- -64|0,m=n[i>>2],M=n[e+28>>2],C=n[e+68>>2],G=n[e+32>>2],d=n[e+72>>2],X=n[e>>2],n[_+36>>2]=n[e+36>>2]+n[e+76>>2],n[_+32>>2]=G+d,n[_+28>>2]=M+C,n[_+24>>2]=T+m,n[_+20>>2]=f+g,n[_+16>>2]=j+v,n[_+12>>2]=B+l,n[_+8>>2]=y+u,n[_+4>>2]=t+o,n[_>>2]=A+X,o=n[e+40>>2],A=n[e+4>>2],y=n[e+44>>2],u=n[e+8>>2],B=n[e+48>>2],l=n[e+12>>2],j=n[e+52>>2],v=n[e+16>>2],f=n[e+56>>2],g=n[e+20>>2],T=n[e+60>>2],m=n[e+24>>2],i=n[i>>2],t=n[e+28>>2],M=n[e+68>>2],C=n[e+32>>2],G=n[e+72>>2],d=n[e>>2],n[_+76>>2]=n[e+76>>2]-n[e+36>>2],n[_+72>>2]=G-C,n[_+68>>2]=M-t,t=_- -64|0,n[t>>2]=i-m,n[_+60>>2]=T-g,n[_+56>>2]=f-v,n[_+52>>2]=j-l,n[_+48>>2]=B-u,n[_+44>>2]=y-A,A=_+40|0,n[A>>2]=o-d,r0(_+80|0,_,r),r0(A,A,r+40|0),r0(_+120|0,r+80|0,e+120|0),X=n[e+80>>2],U=n[e+84>>2],x=n[e+88>>2],z=n[e+92>>2],$=n[e+96>>2],J=n[e+100>>2],A0=n[e+104>>2],n0=n[e+108>>2],t0=n[e+112>>2],_0=n[e+116>>2],e=n[A>>2],r=n[_+80>>2],o=n[_+44>>2],y=n[_+84>>2],u=n[_+48>>2],B=n[_+88>>2],l=n[_+52>>2],j=n[_+92>>2],v=n[_+56>>2],f=n[_+96>>2],g=n[_+60>>2],T=n[_+100>>2],i=n[t>>2],m=n[_+104>>2],M=n[_+68>>2],C=n[_+108>>2],G=n[_+72>>2],d=n[_+112>>2],K=n[_+76>>2],O=n[_+116>>2],n[_+76>>2]=K+O,n[_+72>>2]=G+d,n[_+68>>2]=M+C,n[t>>2]=i+m,n[_+60>>2]=g+T,n[_+56>>2]=v+f,n[_+52>>2]=l+j,n[_+48>>2]=u+B,n[_+44>>2]=o+y,n[A>>2]=e+r,n[_+36>>2]=O-K,n[_+32>>2]=d-G,n[_+28>>2]=C-M,n[_+24>>2]=m-i,n[_+20>>2]=T-g,n[_+16>>2]=f-v,n[_+12>>2]=j-l,n[_+8>>2]=B-u,n[_+4>>2]=y-o,n[_>>2]=r-e,e=_0<<1,r=n[_+156>>2],n[_+156>>2]=e-r,A=t0<<1,t=n[_+152>>2],n[_+152>>2]=A-t,o=n0<<1,y=n[_+148>>2],n[_+148>>2]=o-y,u=A0<<1,B=n[_+144>>2],n[_+144>>2]=u-B,l=J<<1,j=n[_+140>>2],n[_+140>>2]=l-j,v=$<<1,f=n[_+136>>2],n[_+136>>2]=v-f,g=z<<1,T=n[_+132>>2],n[_+132>>2]=g-T,i=x<<1,m=n[_+128>>2],n[_+128>>2]=i-m,M=U<<1,C=n[_+124>>2],n[_+124>>2]=M-C,G=X<<1,d=n[_+120>>2],n[_+120>>2]=G-d,n[_+112>>2]=A+t,n[_+108>>2]=o+y,n[_+104>>2]=u+B,n[_+100>>2]=l+j,n[_+96>>2]=v+f,n[_+92>>2]=g+T,n[_+88>>2]=i+m,n[_+84>>2]=M+C,n[_+80>>2]=G+d,n[_+116>>2]=e+r}function M1(_,e,r,A){_=_|0,e=e|0,r=r|0,A=A|0;var t=0,i=0;if(t=-1,i=A-65|0,!(i>>>0<4294967232|r>>>0>64)){r:{if(!(r&&e)){(i&255)>>>0<=191&&(S2(),c2()),B2(_- -64|0,0,293),h[_+56|0]=121,h[_+57|0]=33,h[_+58|0]=126,h[_+59|0]=19,h[_+60|0]=25,h[_+61|0]=205,h[_+62|0]=224,h[_+63|0]=91,h[_+48|0]=107,h[_+49|0]=189,h[_+50|0]=65,h[_+51|0]=251,h[_+52|0]=171,h[_+53|0]=217,h[_+54|0]=131,h[_+55|0]=31,h[_+40|0]=31,h[_+41|0]=108,h[_+42|0]=62,h[_+43|0]=43,h[_+44|0]=140,h[_+45|0]=104,h[_+46|0]=5,h[_+47|0]=155,h[_+32|0]=209,h[_+33|0]=130,h[_+34|0]=230,h[_+35|0]=173,h[_+36|0]=127,h[_+37|0]=82,h[_+38|0]=14,h[_+39|0]=81,h[_+24|0]=241,h[_+25|0]=54,h[_+26|0]=29,h[_+27|0]=95,h[_+28|0]=58,h[_+29|0]=245,h[_+30|0]=79,h[_+31|0]=165,h[_+16|0]=43,h[_+17|0]=248,h[_+18|0]=148,h[_+19|0]=254,h[_+20|0]=114,h[_+21|0]=243,h[_+22|0]=110,h[_+23|0]=60,h[_+8|0]=59,h[_+9|0]=167,h[_+10|0]=202,h[_+11|0]=132,h[_+12|0]=133,h[_+13|0]=174,h[_+14|0]=103,h[_+15|0]=187,e=A^-222443256,h[_|0]=e,h[_+1|0]=e>>>8,h[_+2|0]=e>>>16,h[_+3|0]=e>>>24,h[_+4|0]=103,h[_+5|0]=230,h[_+6|0]=9,h[_+7|0]=106;break r}t=F-128|0,F=t;A:{if(!(!e|(A-65&255)>>>0<=191|(r-65&255)>>>0<=191)){B2(_- -64|0,0,293),h[_+56|0]=121,h[_+57|0]=33,h[_+58|0]=126,h[_+59|0]=19,h[_+60|0]=25,h[_+61|0]=205,h[_+62|0]=224,h[_+63|0]=91,h[_+48|0]=107,h[_+49|0]=189,h[_+50|0]=65,h[_+51|0]=251,h[_+52|0]=171,h[_+53|0]=217,h[_+54|0]=131,h[_+55|0]=31,h[_+40|0]=31,h[_+41|0]=108,h[_+42|0]=62,h[_+43|0]=43,h[_+44|0]=140,h[_+45|0]=104,h[_+46|0]=5,h[_+47|0]=155,h[_+32|0]=209,h[_+33|0]=130,h[_+34|0]=230,h[_+35|0]=173,h[_+36|0]=127,h[_+37|0]=82,h[_+38|0]=14,h[_+39|0]=81,h[_+24|0]=241,h[_+25|0]=54,h[_+26|0]=29,h[_+27|0]=95,h[_+28|0]=58,h[_+29|0]=245,h[_+30|0]=79,h[_+31|0]=165,h[_+16|0]=43,h[_+17|0]=248,h[_+18|0]=148,h[_+19|0]=254,h[_+20|0]=114,h[_+21|0]=243,h[_+22|0]=110,h[_+23|0]=60,h[_+8|0]=59,h[_+9|0]=167,h[_+10|0]=202,h[_+11|0]=132,h[_+12|0]=133,h[_+13|0]=174,h[_+14|0]=103,h[_+15|0]=187,A=(r<<8|A)^-222443256,h[_|0]=A,h[_+1|0]=A>>>8,h[_+2|0]=A>>>16,h[_+3|0]=A>>>24,A=r>>>24^1779033703,h[_+4|0]=A,h[_+5|0]=A>>>8,h[_+6|0]=A>>>16,h[_+7|0]=A>>>24,B2(t,0,128),r&&b0(t,e,r),b0(_+96|0,t,128),h[_+352|0]=128,h[_+353|0]=0,h[_+354|0]=0,h[_+355|0]=0,Y0(t,128),F=t+128|0;break A}S2(),c2()}}t=0}return t|0}function tr(_,e,r,A){_=_|0,e=e|0,r=r|0,A=A|0;var t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0;r:{if(!A){t=1797285236,u=2036477234,B=857760878,A=1634760805;break r}t=s[A+12|0]|s[A+13|0]<<8|(s[A+14|0]<<16|s[A+15|0]<<24),u=s[A+8|0]|s[A+9|0]<<8|(s[A+10|0]<<16|s[A+11|0]<<24),B=s[A+4|0]|s[A+5|0]<<8|(s[A+6|0]<<16|s[A+7|0]<<24),A=s[A|0]|s[A+1|0]<<8|(s[A+2|0]<<16|s[A+3|0]<<24)}for(i=s[e+12|0]|s[e+13|0]<<8|(s[e+14|0]<<16|s[e+15|0]<<24),y=s[e+8|0]|s[e+9|0]<<8|(s[e+10|0]<<16|s[e+11|0]<<24),o=s[e+4|0]|s[e+5|0]<<8|(s[e+6|0]<<16|s[e+7|0]<<24),M=s[r+28|0]|s[r+29|0]<<8|(s[r+30|0]<<16|s[r+31|0]<<24),m=s[r+24|0]|s[r+25|0]<<8|(s[r+26|0]<<16|s[r+27|0]<<24),C=20,g=s[r+20|0]|s[r+21|0]<<8|(s[r+22|0]<<16|s[r+23|0]<<24),T=s[r+16|0]|s[r+17|0]<<8|(s[r+18|0]<<16|s[r+19|0]<<24),j=s[r+12|0]|s[r+13|0]<<8|(s[r+14|0]<<16|s[r+15|0]<<24),v=s[r+8|0]|s[r+9|0]<<8|(s[r+10|0]<<16|s[r+11|0]<<24),f=s[r+4|0]|s[r+5|0]<<8|(s[r+6|0]<<16|s[r+7|0]<<24),e=s[e|0]|s[e+1|0]<<8|(s[e+2|0]<<16|s[e+3|0]<<24),r=s[r|0]|s[r+1|0]<<8|(s[r+2|0]<<16|s[r+3|0]<<24);l=b(r+B|0,7)^i,G=b(l+B|0,9)^m,j=b(A+g|0,7)^j,d=b(j+A|0,9)^y,X=b(d+j|0,13)^g,v=b(t+T|0,7)^v,o=b(v+t|0,9)^o,y=b(o+v|0,13)^T,t=b(o+y|0,18)^t,i=b(e+u|0,7)^M,g=X^b(t+i|0,7),m=G^b(g+t|0,9),M=b(g+m|0,13)^i,t=b(m+M|0,18)^t,f=b(i+u|0,9)^f,K=b(f+i|0,13)^e,e=b(K+f|0,18)^u,T=b(e+l|0,7)^y,y=b(T+e|0,9)^d,i=b(y+T|0,13)^l,u=b(i+y|0,18)^e,l=b(l+G|0,13)^r,r=b(l+G|0,18)^B,e=b(r+j|0,7)^K,o=b(e+r|0,9)^o,j=b(e+o|0,13)^j,B=b(o+j|0,18)^r,A=b(d+X|0,18)^A,r=b(A+v|0,7)^l,f=b(r+A|0,9)^f,v=b(r+f|0,13)^v,A=b(f+v|0,18)^A,l=C>>>0>2,C=C-2|0,!!l;);return h[_|0]=A,h[_+1|0]=A>>>8,h[_+2|0]=A>>>16,h[_+3|0]=A>>>24,h[_+28|0]=i,h[_+29|0]=i>>>8,h[_+30|0]=i>>>16,h[_+31|0]=i>>>24,h[_+24|0]=y,h[_+25|0]=y>>>8,h[_+26|0]=y>>>16,h[_+27|0]=y>>>24,h[_+20|0]=o,h[_+21|0]=o>>>8,h[_+22|0]=o>>>16,h[_+23|0]=o>>>24,h[_+16|0]=e,h[_+17|0]=e>>>8,h[_+18|0]=e>>>16,h[_+19|0]=e>>>24,h[_+12|0]=t,h[_+13|0]=t>>>8,h[_+14|0]=t>>>16,h[_+15|0]=t>>>24,h[_+8|0]=u,h[_+9|0]=u>>>8,h[_+10|0]=u>>>16,h[_+11|0]=u>>>24,h[_+4|0]=B,h[_+5|0]=B>>>8,h[_+6|0]=B>>>16,h[_+7|0]=B>>>24,0}function qr(_,e){var r=0,A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0,x=0,z=0,$=0,J=0;M=s[e+31|0],C=s[e+30|0],G=s[e+29|0],d=s[e+6|0],X=s[e+5|0],K=s[e+4|0],O=s[e+9|0],U=s[e+8|0],x=s[e+7|0],z=s[e+12|0],j=s[e+11|0],v=s[e+10|0],T=s[e+15|0],f=s[e+14|0],$=s[e+13|0],u=s[e+28|0],l=s[e+27|0],B=s[e+26|0],y=s[e+25|0],i=s[e+24|0],t=s[e+23|0],J=s[e|0]|s[e+1|0]<<8|(s[e+2|0]<<16|s[e+3|0]<<24),A=s[e+21|0],o=A<<15,A=r,r=o,o=s[e+20|0],g=r|o<<7,o=A|A,r=s[e+22|0],r=r<<23|g,A=A|o,m=s[e+16|0]|s[e+17|0]<<8|(s[e+18|0]<<16|s[e+19|0]<<24),e=0,o=r,g=m+16777216|0,e=g>>>0<16777216?1:e,r=(e&33554431)<<7|g>>>25,o=o+r|0,e=(e>>>25|0)+A|0,A=o,r=A>>>0<r>>>0?e+1|0:e,o=A+33554432|0,e=o>>>0<33554432?r+1|0:r,n[_+24>>2]=A-(o&-67108864),A=t>>>27|0,t=i<<13|t<<5,r=A|i>>>19|y>>>11,A=e,i=y<<21|t,A=(A&67108863)<<6|o>>>26,t=i+A|0,A=t,e=r,t=i+16777216|0,r=t>>>0<16777216?e+1|0:e,n[_+28>>2]=A-(t&1040187392),A=l>>>20|B>>>28|u>>>12,e=r,r=e>>>25|0,e=(e&33554431)<<7|t>>>25,t=e+(l<<12|B<<4|u<<20)|0,A=r+A|0,r=t,A=r>>>0<e>>>0?A+1|0:A,e=A,u=r+33554432|0,t=u>>>0<33554432?e+1|0:e,n[_+32>>2]=r-(u&-67108864),B=m-(g&-33554432)|0,i=f<<10|$<<2|T<<18,y=f>>>22|T>>>14,r=j>>>21|v>>>29,j=j<<11|v<<3|z<<19,l=j+16777216|0,A=l>>>0<16777216?r+1|0:r,e=A>>>25|0,r=i,i=(A&33554431)<<7|l>>>25,A=r+i|0,r=e+y|0,r=A>>>0<i>>>0?r+1|0:r,e=r,i=A+33554432|0,e=i>>>0<33554432?e+1|0:e,r=i,i=((e&67108863)<<6|r>>>26)+B|0,n[_+20>>2]=i,n[_+16>>2]=A-(r&-67108864),i=U<<13|x<<5|O<<21,y=0,v=X<<14|K<<6|d<<22,r=0,B=v+16777216|0,r=B>>>0<16777216?r+1|0:r,A=r>>>25|0,e=i,i=(r&33554431)<<7|B>>>25,r=e+i|0,e=A+y|0,e=r>>>0<i>>>0?e+1|0:e,y=r+33554432|0,A=y>>>0<33554432?e+1|0:e,n[_+8>>2]=r-(y&-67108864),f=M<<18&33292288|(C<<10|G<<2),r=0,t=(t&67108863)<<6|u>>>26,u=t+f|0,e=r,t=f+16777216|0,r=t>>>0<16777216?e+1|0:e,n[_+36>>2]=u-(t&33554432),A=j+((A&67108863)<<6|y>>>26)|0,n[_+12>>2]=A-(l&234881024),i=v-(B&2113929216)|0,e=r,r=e>>>25|0,A=q((e&33554431)<<7|t>>>25,r,19,0),r=A+J|0,e=p,A=r>>>0<A>>>0?e+1|0:e,e=r+33554432|0,A=e>>>0<33554432?A+1|0:A,t=((A&67108863)<<6|e>>>26)+i|0,n[_+4>>2]=t,n[_>>2]=r-(e&-67108864)}function J2(_,e,r,A){var t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0;g=F-704|0,F=g;r:{if(!(r|A))break r;if(o=n[_+76>>2],i=o,o=(A<<3|r>>>29)+i|0,l=n[_+72>>2],u=r<<3,y=l+u|0,n[_+72>>2]=y,o=y>>>0<u>>>0?o+1|0:o,n[_+76>>2]=o,t=_- -64|0,u=t,y=(i|0)==(o|0)&y>>>0<l>>>0|i>>>0>o>>>0,o=n[t+4>>2],M=y,y=y+n[t>>2]|0,t=M>>>0>y>>>0?o+1|0:o,B=A>>>29|0,y=B+y|0,n[u>>2]=y,n[u+4>>2]=y>>>0<B>>>0?t+1|0:t,y=_+80|0,u=((i&7)<<29|l>>>3)&127,o=u,t=128-o|0,l=t,B=0,M=0-(B+(o>>>0>128)|0)|0,o=M,(A|0)==(o|0)&r>>>0>=t>>>0|A>>>0>o>>>0){C=t&3,i=0,o=0;A:{if(!B&(u^127)>>>0>=3|B){for(B=t&252;t=i+u|0,h[t+y|0]=s[e+i|0],t=i|1,m=u+t|0,h[y+m|0]=s[e+t|0],t=i|2,m=u+t|0,h[y+m|0]=s[e+t|0],t=i|3,m=u+t|0,h[y+m|0]=s[e+t|0],i=i+4|0,o=i>>>0<4?o+1|0:o,t=T,v=v+4|0,t=v>>>0<4?t+1|0:t,T=t,!!((B|0)!=(v|0)|(f|0)!=(t|0)););if(!(C|G))break A}for(;t=i+u|0,h[t+y|0]=s[e+i|0],t=o,i=i+1|0,o=i?t:t+1|0,t=f,j=j+1|0,t=j?t:t+1|0,f=t,!!((j|0)!=(C|0)|(G|0)!=(t|0)););}if(i=g+640|0,K6(_,y,g,i),e=e+l|0,A=A-((r>>>0<l>>>0)+M|0)|0,r=r-l|0,!A&r>>>0>127|A)for(;K6(_,e,g,i),e=e+128|0,A=A-(r>>>0<128)|0,r=r-128|0,!!(!A&r>>>0>127|A););A:{if(!(r|A))break A;if(_=r&3,T=0,j=0,f=0,i=0,o=0,!A&r>>>0>=4|A){for(v=r&124,l=0,r=0,A=0;h[i+y|0]=s[e+i|0],t=i|1,h[t+y|0]=s[e+t|0],t=i|2,h[t+y|0]=s[e+t|0],t=i|3,h[t+y|0]=s[e+t|0],t=o,i=i+4|0,o=i>>>0<4?t+1|0:t,t=A,r=r+4|0,t=r>>>0<4?t+1|0:t,A=t,!!((r|0)!=(v|0)|(l|0)!=(t|0)););if(!(_|T))break A}for(;h[i+y|0]=s[e+i|0],i=i+1|0,o=i?o:o+1|0,t=f,j=j+1|0,t=j?t:t+1|0,f=t,!!((_|0)!=(j|0)|(T|0)!=(t|0)););}Y0(g,704);break r}if(_=r&3,l=0,i=0,o=0,!A&r>>>0>=4|A){for(r=r&-4;t=i+u|0,h[t+y|0]=s[e+i|0],t=i|1,B=u+t|0,h[y+B|0]=s[e+t|0],t=i|2,B=u+t|0,h[y+B|0]=s[e+t|0],t=i|3,B=u+t|0,h[y+B|0]=s[e+t|0],i=i+4|0,o=i>>>0<4?o+1|0:o,t=T,v=v+4|0,t=v>>>0<4?t+1|0:t,T=t,!!((r|0)!=(v|0)|(A|0)!=(t|0)););if(!(_|l))break r}for(;r=i+u|0,h[r+y|0]=s[e+i|0],i=i+1|0,o=i?o:o+1|0,t=f,j=j+1|0,t=j?t:t+1|0,f=t,!!((_|0)!=(j|0)|(l|0)!=(t|0)););}return F=g+704|0,0}function d4(_,e){_=_|0,e=e|0;var r=0,A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0;for(r=F-736|0,F=r,y=r+704|0,T0(y,e,e),t=r+224|0,T0(t,e,y),o=r+672|0,T0(o,e,t),i=r+640|0,T0(i,o,o),B=r+416|0,T0(B,y,i),y=r+320|0,T0(y,e,B),A=r+608|0,T0(A,i,i),i=r+288|0,T0(i,y,y),u=r+576|0,T0(u,B,i),v=r+448|0,T0(v,A,i),l=r+544|0,T0(l,u,u),u=r+384|0,T0(u,A,l),j=r+352|0,T0(j,t,u),t=r+192|0,T0(t,A,j),A=r+160|0,T0(A,o,t),T0(r+96|0,o,A),t=r+512|0,T0(t,l,j),A=r+480|0,T0(A,o,t),t=r+256|0,T0(t,v,A),T0(r+128|0,i,t),i=r- -64|0,T0(i,u,A),A=r+32|0,T0(A,o,i),T0(r,B,A),T0(_,y,r),o=0;T0(_,_,_),o=o+1|0,(o|0)!=126;);return T0(_,_,r+352|0),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,r+704|0),T0(_,_,r),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,r+160|0),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,r),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,r+256|0),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,r- -64|0),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,r+96|0),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,r+320|0),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,r+512|0),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,r+192|0),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,r+480|0),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,r),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,r+128|0),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,_),T0(_,_,r+32|0),F=r+736|0,0-n1(e,32)|0}function L4(_,e,r){_=_|0,e=e|0,r=r|0;var A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0;return l=F-160|0,F=l,xr(e,r,32,0),h[e|0]=s[e|0]&248,h[e+31|0]=s[e+31|0]&63|64,Nr(l,e),jr(_,l),i=r,o=s[i|0]|s[i+1|0]<<8|(s[i+2|0]<<16|s[i+3|0]<<24),t=s[i+4|0]|s[i+5|0]<<8|(s[i+6|0]<<16|s[i+7|0]<<24),y=s[i+8|0]|s[i+9|0]<<8|(s[i+10|0]<<16|s[i+11|0]<<24),u=s[i+12|0]|s[i+13|0]<<8|(s[i+14|0]<<16|s[i+15|0]<<24),B=s[i+16|0]|s[i+17|0]<<8|(s[i+18|0]<<16|s[i+19|0]<<24),r=s[i+20|0]|s[i+21|0]<<8|(s[i+22|0]<<16|s[i+23|0]<<24),j=s[i+28|0]|s[i+29|0]<<8|(s[i+30|0]<<16|s[i+31|0]<<24),A=e,e=s[i+24|0]|s[i+25|0]<<8|(s[i+26|0]<<16|s[i+27|0]<<24),h[A+24|0]=e,h[A+25|0]=e>>>8,h[A+26|0]=e>>>16,h[A+27|0]=e>>>24,h[A+28|0]=j,h[A+29|0]=j>>>8,h[A+30|0]=j>>>16,h[A+31|0]=j>>>24,h[A+16|0]=B,h[A+17|0]=B>>>8,h[A+18|0]=B>>>16,h[A+19|0]=B>>>24,h[A+20|0]=r,h[A+21|0]=r>>>8,h[A+22|0]=r>>>16,h[A+23|0]=r>>>24,h[A+8|0]=y,h[A+9|0]=y>>>8,h[A+10|0]=y>>>16,h[A+11|0]=y>>>24,h[A+12|0]=u,h[A+13|0]=u>>>8,h[A+14|0]=u>>>16,h[A+15|0]=u>>>24,h[A|0]=o,h[A+1|0]=o>>>8,h[A+2|0]=o>>>16,h[A+3|0]=o>>>24,h[A+4|0]=t,h[A+5|0]=t>>>8,h[A+6|0]=t>>>16,h[A+7|0]=t>>>24,t=_,y=s[t|0]|s[t+1|0]<<8|(s[t+2|0]<<16|s[t+3|0]<<24),u=s[t+4|0]|s[t+5|0]<<8|(s[t+6|0]<<16|s[t+7|0]<<24),B=s[t+8|0]|s[t+9|0]<<8|(s[t+10|0]<<16|s[t+11|0]<<24),r=s[t+12|0]|s[t+13|0]<<8|(s[t+14|0]<<16|s[t+15|0]<<24),e=s[t+16|0]|s[t+17|0]<<8|(s[t+18|0]<<16|s[t+19|0]<<24),_=s[t+20|0]|s[t+21|0]<<8|(s[t+22|0]<<16|s[t+23|0]<<24),o=s[t+28|0]|s[t+29|0]<<8|(s[t+30|0]<<16|s[t+31|0]<<24),t=s[t+24|0]|s[t+25|0]<<8|(s[t+26|0]<<16|s[t+27|0]<<24),h[A+56|0]=t,h[A+57|0]=t>>>8,h[A+58|0]=t>>>16,h[A+59|0]=t>>>24,h[A+60|0]=o,h[A+61|0]=o>>>8,h[A+62|0]=o>>>16,h[A+63|0]=o>>>24,h[A+48|0]=e,h[A+49|0]=e>>>8,h[A+50|0]=e>>>16,h[A+51|0]=e>>>24,h[A+52|0]=_,h[A+53|0]=_>>>8,h[A+54|0]=_>>>16,h[A+55|0]=_>>>24,h[A+40|0]=B,h[A+41|0]=B>>>8,h[A+42|0]=B>>>16,h[A+43|0]=B>>>24,h[A+44|0]=r,h[A+45|0]=r>>>8,h[A+46|0]=r>>>16,h[A+47|0]=r>>>24,h[A+32|0]=y,h[A+33|0]=y>>>8,h[A+34|0]=y>>>16,h[A+35|0]=y>>>24,h[A+36|0]=u,h[A+37|0]=u>>>8,h[A+38|0]=u>>>16,h[A+39|0]=u>>>24,F=l+160|0,0}function _r(_,e,r){var A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0;g=n[e+4>>2],A=n[_+4>>2],T=n[e+8>>2],t=n[_+8>>2],m=n[e+12>>2],i=n[_+12>>2],M=n[e+16>>2],o=n[_+16>>2],C=n[e+20>>2],y=n[_+20>>2],G=n[e+24>>2],u=n[_+24>>2],f=n[e+28>>2],B=n[_+28>>2],d=n[e+32>>2],l=n[_+32>>2],X=n[e+36>>2],j=n[_+36>>2],r=0-r|0,v=n[_>>2],n[_>>2]=r&(v^n[e>>2])^v,n[_+36>>2]=j^r&(j^X),n[_+32>>2]=l^r&(l^d),n[_+28>>2]=B^r&(B^f),n[_+24>>2]=u^r&(u^G),n[_+20>>2]=y^r&(y^C),n[_+16>>2]=o^r&(o^M),n[_+12>>2]=i^r&(i^m),n[_+8>>2]=t^r&(t^T),n[_+4>>2]=A^r&(A^g),A=n[_+40>>2],g=n[e+40>>2],t=n[_+44>>2],T=n[e+44>>2],i=n[_+48>>2],m=n[e+48>>2],o=n[_+52>>2],M=n[e+52>>2],y=n[_+56>>2],C=n[e+56>>2],u=n[_+60>>2],G=n[e+60>>2],f=_- -64|0,B=n[f>>2],d=n[e- -64>>2],l=n[_+68>>2],X=n[e+68>>2],j=n[_+72>>2],v=n[e+72>>2],K=n[_+76>>2],n[_+76>>2]=K^r&(n[e+76>>2]^K),n[_+72>>2]=j^r&(j^v),n[_+68>>2]=l^r&(l^X),n[f>>2]=B^r&(B^d),n[_+60>>2]=u^r&(u^G),n[_+56>>2]=y^r&(y^C),n[_+52>>2]=o^r&(o^M),n[_+48>>2]=i^r&(i^m),n[_+44>>2]=t^r&(t^T),n[_+40>>2]=A^r&(A^g),A=n[_+80>>2],g=n[e+80>>2],t=n[_+84>>2],T=n[e+84>>2],i=n[_+88>>2],m=n[e+88>>2],o=n[_+92>>2],M=n[e+92>>2],y=n[_+96>>2],C=n[e+96>>2],u=n[_+100>>2],G=n[e+100>>2],B=n[_+104>>2],f=n[e+104>>2],l=n[_+108>>2],d=n[e+108>>2],j=n[_+112>>2],X=n[e+112>>2],v=n[_+116>>2],n[_+116>>2]=r&(v^n[e+116>>2])^v,n[_+112>>2]=j^r&(j^X),n[_+108>>2]=l^r&(l^d),n[_+104>>2]=B^r&(B^f),n[_+100>>2]=u^r&(u^G),n[_+96>>2]=y^r&(y^C),n[_+92>>2]=o^r&(o^M),n[_+88>>2]=i^r&(i^m),n[_+84>>2]=t^r&(t^T),n[_+80>>2]=A^r&(A^g),A=n[_+120>>2],g=n[e+120>>2],t=n[_+124>>2],T=n[e+124>>2],i=n[_+128>>2],m=n[e+128>>2],o=n[_+132>>2],M=n[e+132>>2],y=n[_+136>>2],C=n[e+136>>2],u=n[_+140>>2],G=n[e+140>>2],B=n[_+144>>2],f=n[e+144>>2],l=n[_+148>>2],d=n[e+148>>2],j=n[_+152>>2],X=n[e+152>>2],v=n[e+156>>2],e=n[_+156>>2],n[_+156>>2]=r&(v^e)^e,n[_+152>>2]=j^r&(j^X),n[_+148>>2]=l^r&(l^d),n[_+144>>2]=B^r&(B^f),n[_+140>>2]=u^r&(u^G),n[_+136>>2]=y^r&(y^C),n[_+132>>2]=o^r&(o^M),n[_+128>>2]=i^r&(i^m),n[_+124>>2]=t^r&(t^T),n[_+120>>2]=A^r&(A^g)}function HA(_,e,r,A,t,i,o,y){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0,i=i|0,o=o|0,y=y|0;var u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0;if((y&-7)==1){r:{A:{n:{e:{t:{_:{o:{if(A){i:{B:{if(y>>>0<=3){for(;;){j=u;s:{y:{h:{u:{for(;;){if(l=h[r+j|0],B=l-65|0,B=B&(l-91&(B^-1))>>>8&255|(l+4&(l-58&(l+65488^-1))>>>8&255|(l+185&(l-123&(l+65439^-1))>>>8&255|(((l^16336)+1^-1)>>>8&63|((l^16340)+1^-1)>>>8&62))),B=(B-1&(l^65470)+1)>>>8&255|B,(B|0)!=255)break u;if(B=0,!t)break i;if(Ur(t,l)){if(j=j+1|0,j>>>0>=A>>>0)break h;continue}break}u=j;break i}if(g=B+(g<<6)|0,v>>>0>1)break y;v=v+6|0;break s}_=u+1|0,u=_>>>0<A>>>0?A:_;break i}if(v=v-2|0,e>>>0<=f>>>0)break B;h[_+f|0]=g>>>v,f=f+1|0}if(B=0,u=j+1|0,!(u>>>0<A>>>0))break}break i}for(;;){s:{if(l=h[r+j|0],B=l-65|0,B=B&(l-91&(B^-1))>>>8&255|(l+4&(l-58&(l+65488^-1))>>>8&255|(l+185&(l-123&(l+65439^-1))>>>8&255|(((l^16288)+1^-1)>>>8&63|((l^16338)+1^-1)>>>8&62))),B=(B-1&(l^65470)+1)>>>8&255|B,(B|0)==255){if(B=0,!t)break i;if(Ur(t,l)){if(j=j+1|0,j>>>0>=A>>>0)break s;continue}u=j;break i}g=B+(g<<6)|0;y:{if(v>>>0<2){v=v+6|0;break y}if(v=v-2|0,e>>>0<=f>>>0)break B;h[_+f|0]=g>>>v,f=f+1|0}if(B=0,u=j+1|0,u>>>0>=A>>>0)break i;j=u;continue}break}_=u+1|0,u=_>>>0<A>>>0?A:_;break i}u=j,n[10172]=68,B=1}if(v>>>0>4)break o;_=u}else _=0;if(j=-1,B){u=_;break r}if((-1<<v^-1)&g){u=_;break r}i:{if(y&2||(B=v>>>1|0,!B))break i;if(!t)break t;for(u=_>>>0>A>>>0?_:A;;){if((_|0)==(u|0)){t=68;break e}B:{if(e=h[_+r|0],(e|0)==61){B=B-1|0;break B}if(Ur(t,e))break B;t=28,u=_;break e}if(_=_+1|0,!B)break}}if(j=0,!t|_>>>0>=A>>>0)break _;for(;;){if(!Ur(t,h[_+r|0]))break _;if(_=_+1|0,(A|0)==(_|0))break}u=A;break A}j=-1;break r}u=_;break A}if(t=68,_>>>0>=A>>>0){u=_;break e}if(t=28,s[_+r|0]!=61){u=_;break e}if(u=_+1|0,(B|0)==1){j=0;break A}if((A|0)==(u|0)){u=_>>>0>A>>>0?_:A,t=68;break e}if(s[r+u|0]==61)break n}n[10172]=t;break r}u=_+2|0,j=0}T=f}r:{if(o){n[o>>2]=r+u;break r}if((A|0)==(u|0))break r;n[10172]=28,j=-1}return i&&(n[i>>2]=T),j|0}S2(),c2()}function YA(_,e,r){var A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0;return A=F-320|0,F=A,t=A+240|0,N(t,r),r0(t,t,r),N(_,t),r0(_,_,r),r0(_,_,e),dA(_,_),r0(_,_,t),r0(_,_,e),t=A+192|0,N(t,_),r0(t,t,r),i=n[e+4>>2],f=n[e+8>>2],T=n[e+12>>2],m=n[e+16>>2],M=n[e+20>>2],C=n[e+24>>2],G=n[e+28>>2],d=n[e+32>>2],X=n[e>>2],r=n[A+192>>2],t=n[A+196>>2],o=n[A+200>>2],y=n[A+204>>2],u=n[A+208>>2],B=n[A+212>>2],l=n[A+216>>2],j=n[A+220>>2],v=n[A+224>>2],g=n[A+228>>2],K=n[e+36>>2],n[A+180>>2]=g-K,n[A+176>>2]=v-d,n[A+172>>2]=j-G,n[A+168>>2]=l-C,n[A+164>>2]=B-M,n[A+160>>2]=u-m,n[A+156>>2]=y-T,n[A+152>>2]=o-f,n[A+148>>2]=t-i,n[A+144>>2]=r-X,n[A+132>>2]=g+K,n[A+128>>2]=v+d,n[A+124>>2]=j+G,n[A+120>>2]=l+C,n[A+116>>2]=B+M,n[A+112>>2]=u+m,n[A+108>>2]=y+T,n[A+104>>2]=o+f,n[A+100>>2]=t+i,n[A+96>>2]=r+X,i=A+48|0,r0(i,e,1632),n[A+84>>2]=g+n[A+84>>2],n[A+80>>2]=v+n[A+80>>2],n[A+76>>2]=j+n[A+76>>2],n[A+72>>2]=l+n[A+72>>2],n[A+68>>2]=B+n[A+68>>2],n[A+64>>2]=u+n[A+64>>2],n[A+60>>2]=y+n[A+60>>2],n[A+56>>2]=o+n[A+56>>2],n[A+52>>2]=t+n[A+52>>2],n[A+48>>2]=r+n[A+48>>2],G2(A,A+144|0),T=n1(A,32),G2(A,A+96|0),f=n1(A,32),G2(A,i),e=n1(A,32),r0(A,_,1632),v=n[_+4>>2],j=n[_+8>>2],l=n[_+12>>2],B=n[_+16>>2],u=n[_+20>>2],y=n[_+24>>2],o=n[_+28>>2],t=n[_+32>>2],i=n[_>>2],m=n[A>>2],M=n[A+4>>2],C=n[A+8>>2],G=n[A+12>>2],d=n[A+16>>2],X=n[A+20>>2],g=n[A+24>>2],K=n[A+28>>2],O=n[A+32>>2],e=0-(e|f)|0,r=n[_+36>>2],r=e&(r^n[A+36>>2])^r,n[_+36>>2]=r,t=t^e&(t^O),n[_+32>>2]=t,o=o^e&(o^K),n[_+28>>2]=o,y=y^e&(y^g),n[_+24>>2]=y,u=u^e&(u^X),n[_+20>>2]=u,B=B^e&(B^d),n[_+16>>2]=B,l=l^e&(l^G),n[_+12>>2]=l,j=j^e&(j^C),n[_+8>>2]=j,v=v^e&(v^M),n[_+4>>2]=v,i=i^e&(i^m),n[_>>2]=i,G2(A+288|0,_),e=0-(h[A+288|0]&1)|0,n[_+36>>2]=r^e&(r^0-r),n[_+32>>2]=t^e&(t^0-t),n[_+28>>2]=o^e&(o^0-o),n[_+24>>2]=y^e&(y^0-y),n[_+20>>2]=u^e&(u^0-u),n[_+16>>2]=B^e&(B^0-B),n[_+12>>2]=l^e&(l^0-l),n[_+8>>2]=j^e&(j^0-j),n[_+4>>2]=v^e&(v^0-v),n[_>>2]=i^e&(i^0-i),F=A+320|0,f|T}function Pr(_,e){var r=0,A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0,x=0;return r=F-320|0,F=r,O=_+40|0,qr(O,e),n[_+84>>2]=0,n[_+88>>2]=0,n[_+80>>2]=1,n[_+92>>2]=0,n[_+96>>2]=0,n[_+100>>2]=0,n[_+104>>2]=0,n[_+108>>2]=0,n[_+112>>2]=0,n[_+116>>2]=0,A=r+240|0,N(A,O),t=r+192|0,r0(t,A,1584),n[r+192>>2]=n[r+192>>2]+1,i=n[r+240>>2]-1|0,n[r+240>>2]=i,o=n[r+244>>2],y=n[r+248>>2],u=n[r+252>>2],B=n[r+256>>2],l=n[r+260>>2],j=n[r+264>>2],v=n[r+268>>2],f=n[r+272>>2],g=n[r+276>>2],r0(_,A,t),dA(_,_),r0(_,A,_),A=r+144|0,N(A,_),r0(A,A,t),A=n[r+180>>2],n[r+132>>2]=A-g,t=n[r+176>>2],n[r+128>>2]=t-f,T=n[r+172>>2],n[r+124>>2]=T-v,m=n[r+168>>2],n[r+120>>2]=m-j,M=n[r+164>>2],n[r+116>>2]=M-l,C=n[r+160>>2],n[r+112>>2]=C-B,G=n[r+156>>2],n[r+108>>2]=G-u,d=n[r+152>>2],n[r+104>>2]=d-y,X=n[r+148>>2],n[r+100>>2]=X-o,K=n[r+144>>2],n[r+96>>2]=K-i,n[r+84>>2]=A+g,n[r+80>>2]=t+f,n[r+76>>2]=v+T,n[r+72>>2]=j+m,n[r+68>>2]=l+M,n[r+64>>2]=B+C,n[r+60>>2]=u+G,n[r+56>>2]=y+d,n[r+52>>2]=o+X,n[r+48>>2]=i+K,G2(r,r+96|0),f=n1(r,32),G2(r,r+48|0),T=n1(r,32),r0(r,_,1632),v=n[_+4>>2],j=n[_+8>>2],l=n[_+12>>2],B=n[_+16>>2],u=n[_+20>>2],y=n[_+24>>2],o=n[_+28>>2],i=n[_+32>>2],g=n[_>>2],m=n[r>>2],M=n[r+4>>2],C=n[r+8>>2],G=n[r+12>>2],d=n[r+16>>2],X=n[r+20>>2],K=n[r+24>>2],U=n[r+28>>2],x=n[r+32>>2],A=f-1|0,t=n[_+36>>2],t=A&(t^n[r+36>>2])^t,n[_+36>>2]=t,i=i^A&(i^x),n[_+32>>2]=i,o=o^A&(o^U),n[_+28>>2]=o,y=y^A&(y^K),n[_+24>>2]=y,u=u^A&(u^X),n[_+20>>2]=u,B=B^A&(B^d),n[_+16>>2]=B,l=l^A&(l^G),n[_+12>>2]=l,j=j^A&(j^C),n[_+8>>2]=j,v=v^A&(v^M),n[_+4>>2]=v,A=g^A&(g^m),n[_>>2]=A,G2(r+288|0,_),e=0-(h[r+288|0]&1^s[e+31|0]>>>7^s[41218]>>>2)|0,n[_+36>>2]=t^e&(t^0-t),n[_+32>>2]=i^e&(i^0-i),n[_+28>>2]=o^e&(o^0-o),n[_+24>>2]=y^e&(y^0-y),n[_+20>>2]=u^e&(u^0-u),n[_+16>>2]=B^e&(B^0-B),n[_+12>>2]=l^e&(l^0-l),n[_+8>>2]=j^e&(j^0-j),n[_+4>>2]=v^e&(v^0-v),n[_>>2]=A^e&(A^0-A),r0(_+120|0,_,O),F=r+320|0,(f|T)-1|0}function A1(_,e){var r=0,A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0,x=0,z=0,$=0,J=0,A0=0,n0=0,t0=0,_0=0,s0=0;r=F-48|0,F=r,N(_,e),N(_+80|0,e+40|0),a4(_+120|0,e+80|0),u=n[e+40>>2],t=n[e+44>>2],A=n[e+4>>2],i=n[e+48>>2],B=n[e+8>>2],o=n[e+52>>2],l=n[e+12>>2],y=n[e+56>>2],T=n[e+16>>2],j=n[e+60>>2],m=n[e+20>>2],v=n[e- -64>>2],M=n[e+24>>2],f=n[e+68>>2],C=n[e+28>>2],g=n[e+72>>2],G=n[e+32>>2],X=n[e>>2],n[_+76>>2]=n[e+76>>2]+n[e+36>>2],n[_+72>>2]=g+G,n[_+68>>2]=f+C,K=_- -64|0,n[K>>2]=v+M,n[_+60>>2]=j+m,n[_+56>>2]=y+T,n[_+52>>2]=o+l,n[_+48>>2]=i+B,n[_+44>>2]=t+A,e=_+40|0,n[e>>2]=u+X,N(r,e),u=n[_+80>>2],t=n[_+4>>2],A=n[_+84>>2],i=n[_+8>>2],B=n[_+88>>2],o=n[_+12>>2],l=n[_+92>>2],y=n[_+16>>2],T=n[_+96>>2],j=n[_+20>>2],m=n[_+100>>2],v=n[_+24>>2],M=n[_+104>>2],f=n[_+28>>2],C=n[_+108>>2],g=n[_+32>>2],G=n[_+112>>2],X=n[_>>2],d=n[_+116>>2],O=n[_+36>>2],U=d-O|0,n[_+116>>2]=U,x=G-g|0,n[_+112>>2]=x,z=C-f|0,n[_+108>>2]=z,$=M-v|0,n[_+104>>2]=$,J=m-j|0,n[_+100>>2]=J,A0=T-y|0,n[_+96>>2]=A0,n0=l-o|0,n[_+92>>2]=n0,t0=B-i|0,n[_+88>>2]=t0,_0=A-t|0,n[_+84>>2]=_0,s0=u-X|0,n[_+80>>2]=s0,d=d+O|0,n[_+76>>2]=d,g=g+G|0,n[_+72>>2]=g,f=f+C|0,n[_+68>>2]=f,v=v+M|0,n[K>>2]=v,j=j+m|0,n[_+60>>2]=j,y=y+T|0,n[_+56>>2]=y,o=o+l|0,n[_+52>>2]=o,i=i+B|0,n[_+48>>2]=i,t=t+A|0,n[_+44>>2]=t,A=e,e=u+X|0,n[A>>2]=e,u=n[r>>2],A=n[r+4>>2],B=n[r+8>>2],l=n[r+12>>2],T=n[r+16>>2],m=n[r+20>>2],M=n[r+24>>2],C=n[r+28>>2],G=n[r+32>>2],n[_+36>>2]=n[r+36>>2]-d,n[_+32>>2]=G-g,n[_+28>>2]=C-f,n[_+24>>2]=M-v,n[_+20>>2]=m-j,n[_+16>>2]=T-y,n[_+12>>2]=l-o,n[_+8>>2]=B-i,n[_+4>>2]=A-t,n[_>>2]=u-e,e=n[_+120>>2],u=n[_+124>>2],t=n[_+128>>2],A=n[_+132>>2],i=n[_+136>>2],B=n[_+140>>2],o=n[_+144>>2],l=n[_+148>>2],y=n[_+152>>2],n[_+156>>2]=n[_+156>>2]-U,n[_+152>>2]=y-x,n[_+148>>2]=l-z,n[_+144>>2]=o-$,n[_+140>>2]=B-J,n[_+136>>2]=i-A0,n[_+132>>2]=A-n0,n[_+128>>2]=t-t0,n[_+124>>2]=u-_0,n[_+120>>2]=e-s0,F=r+48|0}function S1(_,e,r,A){var t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0;g=F-288|0,F=g;r:{if(!(r|A))break r;if(y=n[_+36>>2],i=y,t=(A<<3|r>>>29)+i|0,o=n[_+32>>2],B=r<<3,u=o+B|0,n[_+32>>2]=u,n[_+36>>2]=B>>>0>u>>>0?t+1|0:t,y=_+40|0,l=((i&7)<<29|o>>>3)&63,o=l,B=64-o|0,t=0,M=0-(t+(o>>>0>64)|0)|0,o=M,(A|0)==(o|0)&r>>>0>=B>>>0|A>>>0>o>>>0){C=B&3,i=0,o=0;A:{if(!t&(l^63)>>>0>=3|t){for(G=B&124;t=i+l|0,h[t+y|0]=s[e+i|0],u=i|1,t=l+u|0,h[t+y|0]=s[e+u|0],u=i|2,t=l+u|0,h[t+y|0]=s[e+u|0],u=i|3,t=l+u|0,h[t+y|0]=s[e+u|0],i=i+4|0,o=i>>>0<4?o+1|0:o,t=T,v=v+4|0,t=v>>>0<4?t+1|0:t,T=t,!!((v|0)!=(G|0)|(m|0)!=(t|0)););if(!(C|m))break A}for(;t=i+l|0,h[t+y|0]=s[e+i|0],t=o,i=i+1|0,o=i?t:t+1|0,t=f,j=j+1|0,t=j?t:t+1|0,f=t,!!((j|0)!=(C|0)|(m|0)!=(t|0)););}if(f=g+256|0,O6(_,y,g,f),e=e+B|0,A=A-((r>>>0<B>>>0)+M|0)|0,r=r-B|0,!A&r>>>0>63|A)for(;O6(_,e,g,f),e=e- -64|0,o=A-1|0,r=r+-64|0,A=r>>>0<4294967232?o+1|0:o,!!(!A&r>>>0>63|A););A:{if(!(r|A))break A;if(u=r&3,B=0,j=0,f=0,i=0,o=0,!A&r>>>0>=4|A){for(v=r&60,T=0,r=0,A=0;h[i+y|0]=s[e+i|0],_=i|1,h[_+y|0]=s[_+e|0],_=i|2,h[_+y|0]=s[_+e|0],_=i|3,h[_+y|0]=s[_+e|0],t=o,i=i+4|0,o=i>>>0<4?t+1|0:t,t=A,r=r+4|0,t=r>>>0<4?t+1|0:t,A=t,!!((r|0)!=(v|0)|(T|0)!=(t|0)););if(!(B|u))break A}for(;h[i+y|0]=s[e+i|0],i=i+1|0,o=i?o:o+1|0,t=f,j=j+1|0,t=j?t:t+1|0,f=t,!!((u|0)!=(j|0)|(B|0)!=(t|0)););}Y0(g,288);break r}if(m=r&3,u=0,i=0,o=0,!A&r>>>0>=4|A){for(B=r&-4;_=i+l|0,h[_+y|0]=s[e+i|0],r=i|1,_=l+r|0,h[_+y|0]=s[e+r|0],r=i|2,_=l+r|0,h[_+y|0]=s[e+r|0],r=i|3,_=l+r|0,h[_+y|0]=s[e+r|0],i=i+4|0,o=i>>>0<4?o+1|0:o,t=T,v=v+4|0,t=v>>>0<4?t+1|0:t,T=t,!!((B|0)!=(v|0)|(A|0)!=(t|0)););if(!(u|m))break r}for(;_=i+l|0,h[_+y|0]=s[e+i|0],i=i+1|0,o=i?o:o+1|0,t=f,j=j+1|0,t=j?t:t+1|0,f=t,!!((j|0)!=(m|0)|(u|0)!=(t|0)););}return F=g+288|0,0}function X4(_,e,r){var A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0;A=F-160|0,F=A,t=s[41218],n[_+4>>2]=0,n[_+8>>2]=0,n[_>>2]=1,n[_+12>>2]=0,n[_+16>>2]=0,n[_+20>>2]=0,n[_+24>>2]=0,n[_+28>>2]=0,n[_+32>>2]=0,n[_+44>>2]=0,n[_+48>>2]=0,n[_+36>>2]=0,n[_+40>>2]=1,n[_+52>>2]=0,n[_+56>>2]=0,n[_+60>>2]=0,n[_+64>>2]=0,n[_+68>>2]=0,n[_+72>>2]=0,n[_+76>>2]=0,n[_+80>>2]=1,B2(_+84|0,0,76),t=t>>>2^(r&128)>>>7,r=r-((0-t&r)<<1)|0,_r(_,e,s[41218]>>>2^((r^1)&255)-1>>>31),_r(_,e+160|0,s[41218]>>>2^((r^2)&255)-1>>>31),_r(_,e+320|0,s[41218]>>>2^((r^3)&255)-1>>>31),_r(_,e+480|0,s[41218]>>>2^((r^4)&255)-1>>>31),_r(_,e+640|0,s[41218]>>>2^((r^5)&255)-1>>>31),_r(_,e+800|0,s[41218]>>>2^((r^6)&255)-1>>>31),_r(_,e+960|0,s[41218]>>>2^((r^7)&255)-1>>>31),_r(_,e+1120|0,s[41218]>>>2^((r^8)&255)-1>>>31),e=n[_+76>>2],n[A+32>>2]=n[_+72>>2],n[A+36>>2]=e,e=_- -64|0,r=n[e+4>>2],n[A+24>>2]=n[e>>2],n[A+28>>2]=r,e=n[_+60>>2],n[A+16>>2]=n[_+56>>2],n[A+20>>2]=e,e=n[_+52>>2],n[A+8>>2]=n[_+48>>2],n[A+12>>2]=e,e=n[_+44>>2],n[A>>2]=n[_+40>>2],n[A+4>>2]=e,e=n[_+36>>2],n[A+72>>2]=n[_+32>>2],n[A+76>>2]=e,e=n[_+28>>2],n[A+64>>2]=n[_+24>>2],n[A+68>>2]=e,e=n[_+20>>2],n[A+56>>2]=n[_+16>>2],n[A+60>>2]=e,e=n[_+12>>2],n[A+48>>2]=n[_+8>>2],n[A+52>>2]=e,e=n[_+4>>2],n[A+40>>2]=n[_>>2],n[A+44>>2]=e,e=n[_+92>>2],n[A+88>>2]=n[_+88>>2],n[A+92>>2]=e,e=n[_+84>>2],n[A+80>>2]=n[_+80>>2],n[A+84>>2]=e,e=n[_+100>>2],n[A+96>>2]=n[_+96>>2],n[A+100>>2]=e,e=n[_+108>>2],n[A+104>>2]=n[_+104>>2],n[A+108>>2]=e,e=n[_+116>>2],n[A+112>>2]=n[_+112>>2],n[A+116>>2]=e,e=n[_+120>>2],r=n[_+124>>2],i=n[_+128>>2],o=n[_+132>>2],y=n[_+136>>2],u=n[_+140>>2],B=n[_+144>>2],l=n[_+148>>2],j=n[_+152>>2],n[A+156>>2]=0-n[_+156>>2],n[A+152>>2]=0-j,n[A+148>>2]=0-l,n[A+144>>2]=0-B,n[A+140>>2]=0-u,n[A+136>>2]=0-y,n[A+132>>2]=0-o,n[A+128>>2]=0-i,n[A+124>>2]=0-r,n[A+120>>2]=0-e,_r(_,A,t),F=A+160|0}function QA(_,e,r,A,t,i){var o=0;n[i>>2]=8;r:{A:{o=_,_=!e&_>>>0<=32768,o=_?32768:o;n:{e:{if(_=_?0:e,!_&r>>>5>>>0<=o>>>0|_){if(r>>>0>=4096)break e;e=1;break n}if(n[t>>2]=1,e=(o>>>0)/(n[i>>2]<<2>>>0)|0,_=1,e>>>0<4||(_=2,e>>>0<8))break r;if(e>>>0<16){n[A>>2]=3;return}if(e>>>0<32){n[A>>2]=4;return}if(e>>>0<64){n[A>>2]=5;return}if(e>>>0<128){n[A>>2]=6;return}if(e>>>0<256){n[A>>2]=7;return}if(e>>>0<512){n[A>>2]=8;return}if(e>>>0<1024){n[A>>2]=9;return}if(e>>>0<2048){n[A>>2]=10;return}if(e>>>0<4096){n[A>>2]=11;return}if(e>>>0<8192){n[A>>2]=12;return}if(e>>>0<16384){n[A>>2]=13;return}if(e>>>0<32768){n[A>>2]=14;return}if(e>>>0<65536){n[A>>2]=15;return}if(e>>>0<131072){n[A>>2]=16;return}if(e>>>0<262144){n[A>>2]=17;return}if(e>>>0<524288){n[A>>2]=18;return}if(e>>>0<1048576){n[A>>2]=19;return}if(e>>>0<2097152){n[A>>2]=20;return}if(e>>>0<4194304){n[A>>2]=21;return}if(e>>>0<8388608){n[A>>2]=22;return}if(e>>>0<16777216){n[A>>2]=23;return}if(e>>>0>=33554432)break A;n[A>>2]=24;return}if(e=2,r>>>0<8192||(e=3,r>>>0<16384)||(e=4,r>>>0<32768)||(e=5,r>>>0<65536)||(e=6,r>>>0<131072)||(e=7,r>>>0<262144)||(e=8,r>>>0<524288)||(e=9,r>>>0<1048576)||(e=10,r>>>0<2097152)||(e=11,r>>>0<4194304)||(e=12,r>>>0<8388608)||(e=13,r>>>0<16777216)||(e=14,r>>>0<33554432)||(e=15,r>>>0<67108864)||(e=16,r>>>0<134217728)||(e=17,r>>>0<268435456)||(e=18,r>>>0<536870912)||(e=19,r>>>0<1073741824))break n;e=(r|0)>=0?20:21}r=e,n[A>>2]=r,e=_,_=e>>>2|0,e=(e&3)<<30|o>>>2,A=r&31,(r&63)>>>0>=32?(r=0,_=_>>>A|0):(r=_>>>A|0,_=((1<<A)-1&_)<<32-A|e>>>A),n[t>>2]=((!r&_>>>0>=1073741823|r?1073741823:_)>>>0)/p1[i>>2];return}_=e>>>0<67108864?25:26}n[A>>2]=_}function n_(_,e,r,A,t,i,o,y){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0,i=i|0,o=o|0,y=y|0;var u=0,B=0;if(u=F-112|0,F=u,r|A){B=s[y+28|0]|s[y+29|0]<<8|(s[y+30|0]<<16|s[y+31|0]<<24),n[u+24>>2]=s[y+24|0]|s[y+25|0]<<8|(s[y+26|0]<<16|s[y+27|0]<<24),n[u+28>>2]=B,B=s[y+20|0]|s[y+21|0]<<8|(s[y+22|0]<<16|s[y+23|0]<<24),n[u+16>>2]=s[y+16|0]|s[y+17|0]<<8|(s[y+18|0]<<16|s[y+19|0]<<24),n[u+20>>2]=B,B=s[y+12|0]|s[y+13|0]<<8|(s[y+14|0]<<16|s[y+15|0]<<24),n[u+8>>2]=s[y+8|0]|s[y+9|0]<<8|(s[y+10|0]<<16|s[y+11|0]<<24),n[u+12>>2]=B,B=s[y+4|0]|s[y+5|0]<<8|(s[y+6|0]<<16|s[y+7|0]<<24),n[u>>2]=s[y|0]|s[y+1|0]<<8|(s[y+2|0]<<16|s[y+3|0]<<24),n[u+4>>2]=B,y=s[t+4|0]|s[t+5|0]<<8|(s[t+6|0]<<16|s[t+7|0]<<24),n[u+96>>2]=s[t|0]|s[t+1|0]<<8|(s[t+2|0]<<16|s[t+3|0]<<24),n[u+100>>2]=y,h[u+104|0]=i,h[u+111|0]=o>>>24,h[u+110|0]=o>>>16,h[u+109|0]=o>>>8,h[u+108|0]=o,h[u+107|0]=(o&16777215)<<8|i>>>24,h[u+106|0]=(o&65535)<<16|i>>>16,h[u+105|0]=(o&255)<<24|i>>>8;r:{if(!A&r>>>0>=64|A){for(;;){for(y=0,j6(u+32|0,u+96|0,u,0);i=u+32|0,h[_+y|0]=s[i+y|0]^s[e+y|0],t=y|1,h[t+_|0]=s[t+i|0]^s[e+t|0],y=y+2|0,(y|0)!=64;);if(t=s[u+104|0]+1|0,h[u+104|0]=t,t=s[u+105|0]+(t>>>8|0)|0,h[u+105|0]=t,t=s[u+106|0]+(t>>>8|0)|0,h[u+106|0]=t,t=s[u+107|0]+(t>>>8|0)|0,h[u+107|0]=t,t=s[u+108|0]+(t>>>8|0)|0,h[u+108|0]=t,t=s[u+109|0]+(t>>>8|0)|0,h[u+109|0]=t,t=s[u+110|0]+(t>>>8|0)|0,h[u+110|0]=t,h[u+111|0]=s[u+111|0]+(t>>>8|0),e=e- -64|0,_=_- -64|0,A=A-1|0,r=r+-64|0,A=r>>>0<4294967232?A+1|0:A,!(!A&r>>>0>63|A))break}if(!(r|A))break r}if(y=0,j6(u+32|0,u+96|0,u,0),(r|0)!=1|A){for(A=r&1,i=r&62,t=0;o=u+32|0,h[_+y|0]=s[o+y|0]^s[e+y|0],r=y|1,h[r+_|0]=s[r+o|0]^s[e+r|0],y=y+2|0,t=t+2|0,(i|0)!=(t|0););if(!A)break r}h[_+y|0]=s[(u+32|0)+y|0]^s[e+y|0]}Y0(u+32|0,64),Y0(u,32)}return F=u+112|0,0}function R4(_,e){_=_|0,e=e|0;var r=0,A=0,t=0,i=0,o=0,y=0,u=0,B=0;return A=F-192|0,F=A,t1(A,32),xr(e,A,32,0),h[e|0]=s[e|0]&248,h[e+31|0]=s[e+31|0]&63|64,t=A+32|0,Nr(t,e),jr(_,t),i=A,t=n[A+28>>2],A=n[A+24>>2],h[e+24|0]=A,h[e+25|0]=A>>>8,h[e+26|0]=A>>>16,h[e+27|0]=A>>>24,h[e+28|0]=t,h[e+29|0]=t>>>8,h[e+30|0]=t>>>16,h[e+31|0]=t>>>24,t=n[i+20>>2],A=n[i+16>>2],h[e+16|0]=A,h[e+17|0]=A>>>8,h[e+18|0]=A>>>16,h[e+19|0]=A>>>24,h[e+20|0]=t,h[e+21|0]=t>>>8,h[e+22|0]=t>>>16,h[e+23|0]=t>>>24,t=n[i+12>>2],A=n[i+8>>2],h[e+8|0]=A,h[e+9|0]=A>>>8,h[e+10|0]=A>>>16,h[e+11|0]=A>>>24,h[e+12|0]=t,h[e+13|0]=t>>>8,h[e+14|0]=t>>>16,h[e+15|0]=t>>>24,t=n[i+4>>2],A=n[i>>2],h[e|0]=A,h[e+1|0]=A>>>8,h[e+2|0]=A>>>16,h[e+3|0]=A>>>24,h[e+4|0]=t,h[e+5|0]=t>>>8,h[e+6|0]=t>>>16,h[e+7|0]=t>>>24,r=_,o=s[r|0]|s[r+1|0]<<8|(s[r+2|0]<<16|s[r+3|0]<<24),y=s[r+4|0]|s[r+5|0]<<8|(s[r+6|0]<<16|s[r+7|0]<<24),u=s[r+8|0]|s[r+9|0]<<8|(s[r+10|0]<<16|s[r+11|0]<<24),t=s[r+12|0]|s[r+13|0]<<8|(s[r+14|0]<<16|s[r+15|0]<<24),A=s[r+16|0]|s[r+17|0]<<8|(s[r+18|0]<<16|s[r+19|0]<<24),_=s[r+20|0]|s[r+21|0]<<8|(s[r+22|0]<<16|s[r+23|0]<<24),B=s[r+28|0]|s[r+29|0]<<8|(s[r+30|0]<<16|s[r+31|0]<<24),r=s[r+24|0]|s[r+25|0]<<8|(s[r+26|0]<<16|s[r+27|0]<<24),h[e+56|0]=r,h[e+57|0]=r>>>8,h[e+58|0]=r>>>16,h[e+59|0]=r>>>24,h[e+60|0]=B,h[e+61|0]=B>>>8,h[e+62|0]=B>>>16,h[e+63|0]=B>>>24,h[e+48|0]=A,h[e+49|0]=A>>>8,h[e+50|0]=A>>>16,h[e+51|0]=A>>>24,h[e+52|0]=_,h[e+53|0]=_>>>8,h[e+54|0]=_>>>16,h[e+55|0]=_>>>24,h[e+40|0]=u,h[e+41|0]=u>>>8,h[e+42|0]=u>>>16,h[e+43|0]=u>>>24,h[e+44|0]=t,h[e+45|0]=t>>>8,h[e+46|0]=t>>>16,h[e+47|0]=t>>>24,h[e+32|0]=o,h[e+33|0]=o>>>8,h[e+34|0]=o>>>16,h[e+35|0]=o>>>24,h[e+36|0]=y,h[e+37|0]=y>>>8,h[e+38|0]=y>>>16,h[e+39|0]=y>>>24,Y0(i,32),F=i+192|0,0}function F4(_,e){_=_|0,e=e|0;var r=0,A=0;A=F+-64|0,F=A,r=s[e+60|0]|s[e+61|0]<<8|(s[e+62|0]<<16|s[e+63|0]<<24),n[A+56>>2]=s[e+56|0]|s[e+57|0]<<8|(s[e+58|0]<<16|s[e+59|0]<<24),n[A+60>>2]=r,r=s[e+52|0]|s[e+53|0]<<8|(s[e+54|0]<<16|s[e+55|0]<<24),n[A+48>>2]=s[e+48|0]|s[e+49|0]<<8|(s[e+50|0]<<16|s[e+51|0]<<24),n[A+52>>2]=r,r=s[e+44|0]|s[e+45|0]<<8|(s[e+46|0]<<16|s[e+47|0]<<24),n[A+40>>2]=s[e+40|0]|s[e+41|0]<<8|(s[e+42|0]<<16|s[e+43|0]<<24),n[A+44>>2]=r,r=s[e+36|0]|s[e+37|0]<<8|(s[e+38|0]<<16|s[e+39|0]<<24),n[A+32>>2]=s[e+32|0]|s[e+33|0]<<8|(s[e+34|0]<<16|s[e+35|0]<<24),n[A+36>>2]=r,r=s[e+28|0]|s[e+29|0]<<8|(s[e+30|0]<<16|s[e+31|0]<<24),n[A+24>>2]=s[e+24|0]|s[e+25|0]<<8|(s[e+26|0]<<16|s[e+27|0]<<24),n[A+28>>2]=r,r=s[e+20|0]|s[e+21|0]<<8|(s[e+22|0]<<16|s[e+23|0]<<24),n[A+16>>2]=s[e+16|0]|s[e+17|0]<<8|(s[e+18|0]<<16|s[e+19|0]<<24),n[A+20>>2]=r,r=s[e+12|0]|s[e+13|0]<<8|(s[e+14|0]<<16|s[e+15|0]<<24),n[A+8>>2]=s[e+8|0]|s[e+9|0]<<8|(s[e+10|0]<<16|s[e+11|0]<<24),n[A+12>>2]=r,r=s[e+4|0]|s[e+5|0]<<8|(s[e+6|0]<<16|s[e+7|0]<<24),n[A>>2]=s[e|0]|s[e+1|0]<<8|(s[e+2|0]<<16|s[e+3|0]<<24),n[A+4>>2]=r,er(A),e=n[A+28>>2],r=n[A+24>>2],h[_+24|0]=r,h[_+25|0]=r>>>8,h[_+26|0]=r>>>16,h[_+27|0]=r>>>24,h[_+28|0]=e,h[_+29|0]=e>>>8,h[_+30|0]=e>>>16,h[_+31|0]=e>>>24,e=n[A+20>>2],r=n[A+16>>2],h[_+16|0]=r,h[_+17|0]=r>>>8,h[_+18|0]=r>>>16,h[_+19|0]=r>>>24,h[_+20|0]=e,h[_+21|0]=e>>>8,h[_+22|0]=e>>>16,h[_+23|0]=e>>>24,e=n[A+12>>2],r=n[A+8>>2],h[_+8|0]=r,h[_+9|0]=r>>>8,h[_+10|0]=r>>>16,h[_+11|0]=r>>>24,h[_+12|0]=e,h[_+13|0]=e>>>8,h[_+14|0]=e>>>16,h[_+15|0]=e>>>24,e=n[A+4>>2],r=n[A>>2],h[_|0]=r,h[_+1|0]=r>>>8,h[_+2|0]=r>>>16,h[_+3|0]=r>>>24,h[_+4|0]=e,h[_+5|0]=e>>>8,h[_+6|0]=e>>>16,h[_+7|0]=e>>>24,Y0(A,64),F=A- -64|0}function lr(_,e,r){_=_|0,e=e|0,r=r|0;var A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0;A=F-96|0,F=A,r>>>0>=65&&(b6(_),S1(_,e,r,0),ir(_,A),r=32,e=A),b6(_),n[A+88>>2]=909522486,n[A+92>>2]=909522486,n[A+80>>2]=909522486,n[A+84>>2]=909522486,n[A+72>>2]=909522486,n[A+76>>2]=909522486,n[A+64>>2]=909522486,n[A+68>>2]=909522486,n[A+56>>2]=909522486,n[A+60>>2]=909522486,n[A+48>>2]=909522486,n[A+52>>2]=909522486,n[A+40>>2]=909522486,n[A+44>>2]=909522486,n[A+32>>2]=909522486,n[A+36>>2]=909522486;r:{if(!r)break r;if(l=r&3,r>>>0>=4){for(o=r&124;y=A+32|0,i=y+t|0,h[i|0]=s[i|0]^s[e+t|0],i=t|1,j=i+y|0,h[j|0]=s[j|0]^s[e+i|0],i=t|2,j=i+y|0,h[j|0]=s[j|0]^s[e+i|0],i=y,y=t|3,i=i+y|0,h[i|0]=s[i|0]^s[e+y|0],t=t+4|0,u=u+4|0,(o|0)!=(u|0););if(!l)break r}for(;u=(A+32|0)+t|0,h[u|0]=s[u|0]^s[e+t|0],t=t+1|0,B=B+1|0,(l|0)!=(B|0););}S1(_,A+32|0,64,0),l=_+104|0,b6(l),n[A+88>>2]=1549556828,n[A+92>>2]=1549556828,n[A+80>>2]=1549556828,n[A+84>>2]=1549556828,n[A+72>>2]=1549556828,n[A+76>>2]=1549556828,n[A+64>>2]=1549556828,n[A+68>>2]=1549556828,n[A+56>>2]=1549556828,n[A+60>>2]=1549556828,n[A+48>>2]=1549556828,n[A+52>>2]=1549556828,n[A+40>>2]=1549556828,n[A+44>>2]=1549556828,n[A+32>>2]=1549556828,n[A+36>>2]=1549556828;r:{if(!r)break r;if(y=r&3,B=0,t=0,r>>>0>=4){for(r=r&124,u=0;_=A+32|0,o=_+t|0,h[o|0]=s[o|0]^s[e+t|0],o=t|1,i=o+_|0,h[i|0]=s[i|0]^s[e+o|0],o=t|2,i=o+_|0,h[i|0]=s[i|0]^s[e+o|0],i=_,_=t|3,o=i+_|0,h[o|0]=s[o|0]^s[_+e|0],t=t+4|0,u=u+4|0,(r|0)!=(u|0););if(!y)break r}for(;_=(A+32|0)+t|0,h[_|0]=s[_|0]^s[e+t|0],t=t+1|0,B=B+1|0,(y|0)!=(B|0););}return _=A+32|0,S1(l,_,64,0),Y0(_,64),Y0(A,32),F=A+96|0,0}function Z6(_,e,r,A,t,i,o){var y=0,u=0,B=0,l=0,j=0,v=0,f=0;if(e-65>>>0<4294967232|o>>>0>64)_=-1;else{y=F,v=y,y=y-512&-64,F=y;r:{A:{if(!(!(A|t)|r)|(!_|(e-65&255)>>>0<=191)|(!(!o||i)|o>>>0>=65))break A;n:{if(o){if(!i)break A;B2(y- -64|0,0,293),n[y+56>>2]=327033209,n[y+60>>2]=1541459225,n[y+48>>2]=-79577749,n[y+52>>2]=528734635,n[y+40>>2]=725511199,n[y+44>>2]=-1694144372,n[y+32>>2]=-1377402159,n[y+36>>2]=1359893119,n[y+24>>2]=1595750129,n[y+28>>2]=-1521486534,n[y+16>>2]=-23791573,n[y+20>>2]=1013904242,n[y+8>>2]=-2067093701,n[y+12>>2]=-1150833019,n[y>>2]=(o<<8|e)^-222443256,n[y+4>>2]=o>>>24^1779033703,B=128,u=128-o|0,u&&B2((y+384|0)+o|0,0,u),o&&b0(y+384|0,i,o),i=y+384|0,b0(y+96|0,i,128),n[y+352>>2]=128,Y0(i,128);break n}B2(y- -64|0,0,293),n[y+56>>2]=327033209,n[y+60>>2]=1541459225,n[y+48>>2]=-79577749,n[y+52>>2]=528734635,n[y+40>>2]=725511199,n[y+44>>2]=-1694144372,n[y+32>>2]=-1377402159,n[y+36>>2]=1359893119,n[y+24>>2]=1595750129,n[y+28>>2]=-1521486534,n[y+16>>2]=-23791573,n[y+20>>2]=1013904242,n[y+8>>2]=-2067093701,n[y+12>>2]=-1150833019,n[y>>2]=e^-222443256,n[y+4>>2]=1779033703}if(A|t){if(j=y+96|0,i=256-B|0,!t&A>>>0>i>>>0|t)for(f=y+224|0;i&&b0(B+j|0,r,i),n[y+352>>2]=n[y+352>>2]+i,o=n[y+68>>2],B=o,u=n[y+64>>2],l=u+128|0,o=l>>>0<128?o+1|0:o,n[y+64>>2]=l,n[y+68>>2]=o,o=n[y+76>>2],u=(B|0)==-1&u>>>0>4294967167,B=u,u=u+n[y+72>>2]|0,o=B>>>0>u>>>0?o+1|0:o,n[y+72>>2]=u,n[y+76>>2]=o,o6(y,j),b0(j,f,128),l=n[y+352>>2],B=l-128|0,n[y+352>>2]=B,r=r+i|0,o=i,u=A-o|0,t=t-(A>>>0<o>>>0)|0,i=384-l|0,A=u,!!(!t&i>>>0<u>>>0|t););A&&b0(B+j|0,r,A),n[y+352>>2]=A+n[y+352>>2]}DA(y,_,e),F=v;break r}S2(),c2()}_=0}return _}function e_(_,e,r,A,t,i){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0,i=i|0;var o=0,y=0,u=0;if(o=F-112|0,F=o,y=r,A|r){r=s[i+28|0]|s[i+29|0]<<8|(s[i+30|0]<<16|s[i+31|0]<<24),n[o+24>>2]=s[i+24|0]|s[i+25|0]<<8|(s[i+26|0]<<16|s[i+27|0]<<24),n[o+28>>2]=r,r=s[i+20|0]|s[i+21|0]<<8|(s[i+22|0]<<16|s[i+23|0]<<24),n[o+16>>2]=s[i+16|0]|s[i+17|0]<<8|(s[i+18|0]<<16|s[i+19|0]<<24),n[o+20>>2]=r,r=s[i+12|0]|s[i+13|0]<<8|(s[i+14|0]<<16|s[i+15|0]<<24),n[o+8>>2]=s[i+8|0]|s[i+9|0]<<8|(s[i+10|0]<<16|s[i+11|0]<<24),n[o+12>>2]=r,r=s[i+4|0]|s[i+5|0]<<8|(s[i+6|0]<<16|s[i+7|0]<<24),n[o>>2]=s[i|0]|s[i+1|0]<<8|(s[i+2|0]<<16|s[i+3|0]<<24),n[o+4>>2]=r,r=s[t|0]|s[t+1|0]<<8|(s[t+2|0]<<16|s[t+3|0]<<24),t=s[t+4|0]|s[t+5|0]<<8|(s[t+6|0]<<16|s[t+7|0]<<24),n[o+104>>2]=0,n[o+108>>2]=0,n[o+96>>2]=r,n[o+100>>2]=t;r:{if(!A&y>>>0>=64|A){for(;;){for(r=0,k6(o+32|0,o+96|0,o,0);i=o+32|0,h[_+r|0]=s[i+r|0]^s[e+r|0],t=r|1,h[t+_|0]=s[t+i|0]^s[e+t|0],r=r+2|0,(r|0)!=64;);if(r=s[o+104|0]+1|0,h[o+104|0]=r,r=s[o+105|0]+(r>>>8|0)|0,h[o+105|0]=r,r=s[o+106|0]+(r>>>8|0)|0,h[o+106|0]=r,r=s[o+107|0]+(r>>>8|0)|0,h[o+107|0]=r,r=s[o+108|0]+(r>>>8|0)|0,h[o+108|0]=r,r=s[o+109|0]+(r>>>8|0)|0,h[o+109|0]=r,r=s[o+110|0]+(r>>>8|0)|0,h[o+110|0]=r,h[o+111|0]=s[o+111|0]+(r>>>8|0),e=e- -64|0,_=_- -64|0,A=A-1|0,y=y+-64|0,A=y>>>0<4294967232?A+1|0:A,!(!A&y>>>0>63|A))break}if(!(A|y))break r}if(r=0,k6(o+32|0,o+96|0,o,0),(y|0)!=1|A){for(i=y&1,y=y&62,A=0;u=o+32|0,h[_+r|0]=s[u+r|0]^s[e+r|0],t=r|1,h[t+_|0]=s[t+u|0]^s[e+t|0],r=r+2|0,A=A+2|0,(y|0)!=(A|0););if(!i)break r}h[_+r|0]=s[(o+32|0)+r|0]^s[e+r|0]}Y0(o+32|0,64),Y0(o,32)}return F=o+112|0,0}function t_(_,e,r,A,t,i){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0,i=i|0;var o=0,y=0,u=0;if(o=F-112|0,F=o,y=r,A|r){r=s[i+28|0]|s[i+29|0]<<8|(s[i+30|0]<<16|s[i+31|0]<<24),n[o+24>>2]=s[i+24|0]|s[i+25|0]<<8|(s[i+26|0]<<16|s[i+27|0]<<24),n[o+28>>2]=r,r=s[i+20|0]|s[i+21|0]<<8|(s[i+22|0]<<16|s[i+23|0]<<24),n[o+16>>2]=s[i+16|0]|s[i+17|0]<<8|(s[i+18|0]<<16|s[i+19|0]<<24),n[o+20>>2]=r,r=s[i+12|0]|s[i+13|0]<<8|(s[i+14|0]<<16|s[i+15|0]<<24),n[o+8>>2]=s[i+8|0]|s[i+9|0]<<8|(s[i+10|0]<<16|s[i+11|0]<<24),n[o+12>>2]=r,r=s[i+4|0]|s[i+5|0]<<8|(s[i+6|0]<<16|s[i+7|0]<<24),n[o>>2]=s[i|0]|s[i+1|0]<<8|(s[i+2|0]<<16|s[i+3|0]<<24),n[o+4>>2]=r,r=s[t|0]|s[t+1|0]<<8|(s[t+2|0]<<16|s[t+3|0]<<24),t=s[t+4|0]|s[t+5|0]<<8|(s[t+6|0]<<16|s[t+7|0]<<24),n[o+104>>2]=0,n[o+108>>2]=0,n[o+96>>2]=r,n[o+100>>2]=t;r:{if(!A&y>>>0>=64|A){for(;;){for(r=0,v6(o+32|0,o+96|0,o,0);i=o+32|0,h[_+r|0]=s[i+r|0]^s[e+r|0],t=r|1,h[t+_|0]=s[t+i|0]^s[e+t|0],r=r+2|0,(r|0)!=64;);if(r=s[o+104|0]+1|0,h[o+104|0]=r,r=s[o+105|0]+(r>>>8|0)|0,h[o+105|0]=r,r=s[o+106|0]+(r>>>8|0)|0,h[o+106|0]=r,r=s[o+107|0]+(r>>>8|0)|0,h[o+107|0]=r,r=s[o+108|0]+(r>>>8|0)|0,h[o+108|0]=r,r=s[o+109|0]+(r>>>8|0)|0,h[o+109|0]=r,r=s[o+110|0]+(r>>>8|0)|0,h[o+110|0]=r,h[o+111|0]=s[o+111|0]+(r>>>8|0),e=e- -64|0,_=_- -64|0,A=A-1|0,y=y+-64|0,A=y>>>0<4294967232?A+1|0:A,!(!A&y>>>0>63|A))break}if(!(A|y))break r}if(r=0,v6(o+32|0,o+96|0,o,0),(y|0)!=1|A){for(i=y&1,y=y&62,A=0;u=o+32|0,h[_+r|0]=s[u+r|0]^s[e+r|0],t=r|1,h[t+_|0]=s[t+u|0]^s[e+t|0],r=r+2|0,A=A+2|0,(y|0)!=(A|0););if(!i)break r}h[_+r|0]=s[(o+32|0)+r|0]^s[e+r|0]}Y0(o+32|0,64),Y0(o,32)}return F=o+112|0,0}function K4(_,e){_=_|0,e=e|0;var r=0,A=0;r=F-128|0,F=r,n[r+64>>2]=0,n[r+68>>2]=0,n[r+72>>2]=0,n[r+76>>2]=0,n[r+80>>2]=0,n[r+84>>2]=0,n[r+88>>2]=0,n[r+92>>2]=0,h[r+64|0]=1,n[r+32>>2]=0,n[r+36>>2]=0,n[r+40>>2]=0,n[r+44>>2]=0,n[r+48>>2]=0,n[r+52>>2]=0,n[r+56>>2]=0,n[r+60>>2]=0,A=n[9821],n[r+96>>2]=n[9820],n[r+100>>2]=A,A=n[9823],n[r+104>>2]=n[9822],n[r+108>>2]=A,A=n[9825],n[r+112>>2]=n[9824],n[r+116>>2]=A,A=n[9827],n[r+120>>2]=n[9826],n[r+124>>2]=A,A=s[e+28|0]|s[e+29|0]<<8|(s[e+30|0]<<16|s[e+31|0]<<24),n[r+24>>2]=s[e+24|0]|s[e+25|0]<<8|(s[e+26|0]<<16|s[e+27|0]<<24),n[r+28>>2]=A,A=s[e+20|0]|s[e+21|0]<<8|(s[e+22|0]<<16|s[e+23|0]<<24),n[r+16>>2]=s[e+16|0]|s[e+17|0]<<8|(s[e+18|0]<<16|s[e+19|0]<<24),n[r+20>>2]=A,A=s[e+12|0]|s[e+13|0]<<8|(s[e+14|0]<<16|s[e+15|0]<<24),n[r+8>>2]=s[e+8|0]|s[e+9|0]<<8|(s[e+10|0]<<16|s[e+11|0]<<24),n[r+12>>2]=A,A=s[e+4|0]|s[e+5|0]<<8|(s[e+6|0]<<16|s[e+7|0]<<24),n[r>>2]=s[e|0]|s[e+1|0]<<8|(s[e+2|0]<<16|s[e+3|0]<<24),n[r+4>>2]=A,e=r- -64|0,OA(e,r),er(e),A=n[r+92>>2],e=n[r+88>>2],h[_+24|0]=e,h[_+25|0]=e>>>8,h[_+26|0]=e>>>16,h[_+27|0]=e>>>24,h[_+28|0]=A,h[_+29|0]=A>>>8,h[_+30|0]=A>>>16,h[_+31|0]=A>>>24,A=n[r+84>>2],e=n[r+80>>2],h[_+16|0]=e,h[_+17|0]=e>>>8,h[_+18|0]=e>>>16,h[_+19|0]=e>>>24,h[_+20|0]=A,h[_+21|0]=A>>>8,h[_+22|0]=A>>>16,h[_+23|0]=A>>>24,A=n[r+76>>2],e=n[r+72>>2],h[_+8|0]=e,h[_+9|0]=e>>>8,h[_+10|0]=e>>>16,h[_+11|0]=e>>>24,h[_+12|0]=A,h[_+13|0]=A>>>8,h[_+14|0]=A>>>16,h[_+15|0]=A>>>24,A=n[r+68>>2],e=n[r+64>>2],h[_|0]=e,h[_+1|0]=e>>>8,h[_+2|0]=e>>>16,h[_+3|0]=e>>>24,h[_+4|0]=A,h[_+5|0]=A>>>8,h[_+6|0]=A>>>16,h[_+7|0]=A>>>24,F=r+128|0}function __(_,e,r,A,t){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0;var i=0,o=0,y=0,u=0;if(i=F-112|0,F=i,y=e,o=r,e|o){e=s[t+28|0]|s[t+29|0]<<8|(s[t+30|0]<<16|s[t+31|0]<<24),n[i+24>>2]=s[t+24|0]|s[t+25|0]<<8|(s[t+26|0]<<16|s[t+27|0]<<24),n[i+28>>2]=e,e=s[t+20|0]|s[t+21|0]<<8|(s[t+22|0]<<16|s[t+23|0]<<24),n[i+16>>2]=s[t+16|0]|s[t+17|0]<<8|(s[t+18|0]<<16|s[t+19|0]<<24),n[i+20>>2]=e,e=s[t+12|0]|s[t+13|0]<<8|(s[t+14|0]<<16|s[t+15|0]<<24),n[i+8>>2]=s[t+8|0]|s[t+9|0]<<8|(s[t+10|0]<<16|s[t+11|0]<<24),n[i+12>>2]=e,e=s[t+4|0]|s[t+5|0]<<8|(s[t+6|0]<<16|s[t+7|0]<<24),n[i>>2]=s[t|0]|s[t+1|0]<<8|(s[t+2|0]<<16|s[t+3|0]<<24),n[i+4>>2]=e,e=s[A|0]|s[A+1|0]<<8|(s[A+2|0]<<16|s[A+3|0]<<24),r=s[A+4|0]|s[A+5|0]<<8|(s[A+6|0]<<16|s[A+7|0]<<24),n[i+104>>2]=0,n[i+108>>2]=0,n[i+96>>2]=e,n[i+100>>2]=r;r:{if(!o&y>>>0>=64|o){for(;v6(_,i+96|0,i,0),e=s[i+104|0]+1|0,h[i+104|0]=e,e=s[i+105|0]+(e>>>8|0)|0,h[i+105|0]=e,e=s[i+106|0]+(e>>>8|0)|0,h[i+106|0]=e,e=s[i+107|0]+(e>>>8|0)|0,h[i+107|0]=e,e=s[i+108|0]+(e>>>8|0)|0,h[i+108|0]=e,e=s[i+109|0]+(e>>>8|0)|0,h[i+109|0]=e,e=s[i+110|0]+(e>>>8|0)|0,h[i+110|0]=e,h[i+111|0]=s[i+111|0]+(e>>>8|0),_=_- -64|0,o=o-1|0,y=y+-64|0,o=y>>>0<4294967232?o+1|0:o,!!(!o&y>>>0>63|o););if(!(o|y))break r}if(r=0,v6(i+32|0,i+96|0,i,0),A=y&3,e=0,!o&y>>>0>=4|o){for(y=y&60,t=0;o=i+32|0,h[_+e|0]=s[o+e|0],u=e|1,h[u+_|0]=s[o+u|0],u=e|2,h[u+_|0]=s[o+u|0],u=e|3,h[u+_|0]=s[o+u|0],e=e+4|0,t=t+4|0,(y|0)!=(t|0););if(!A)break r}for(;h[_+e|0]=s[(i+32|0)+e|0],e=e+1|0,r=r+1|0,(A|0)!=(r|0););}Y0(i+32|0,64),Y0(i,32)}return F=i+112|0,0}function i_(_,e,r,A,t){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0;var i=0,o=0,y=0,u=0,B=0;if(i=F-112|0,F=i,e|r){o=s[t+28|0]|s[t+29|0]<<8|(s[t+30|0]<<16|s[t+31|0]<<24),n[i+24>>2]=s[t+24|0]|s[t+25|0]<<8|(s[t+26|0]<<16|s[t+27|0]<<24),n[i+28>>2]=o,o=s[t+20|0]|s[t+21|0]<<8|(s[t+22|0]<<16|s[t+23|0]<<24),n[i+16>>2]=s[t+16|0]|s[t+17|0]<<8|(s[t+18|0]<<16|s[t+19|0]<<24),n[i+20>>2]=o,o=s[t+12|0]|s[t+13|0]<<8|(s[t+14|0]<<16|s[t+15|0]<<24),n[i+8>>2]=s[t+8|0]|s[t+9|0]<<8|(s[t+10|0]<<16|s[t+11|0]<<24),n[i+12>>2]=o,o=s[t+4|0]|s[t+5|0]<<8|(s[t+6|0]<<16|s[t+7|0]<<24),n[i>>2]=s[t|0]|s[t+1|0]<<8|(s[t+2|0]<<16|s[t+3|0]<<24),n[i+4>>2]=o,t=s[A|0]|s[A+1|0]<<8|(s[A+2|0]<<16|s[A+3|0]<<24),A=s[A+4|0]|s[A+5|0]<<8|(s[A+6|0]<<16|s[A+7|0]<<24),n[i+104>>2]=0,n[i+108>>2]=0,n[i+96>>2]=t,n[i+100>>2]=A;r:{if(!r&e>>>0>=64|r){for(;j6(_,i+96|0,i,0),A=s[i+104|0]+1|0,h[i+104|0]=A,A=s[i+105|0]+(A>>>8|0)|0,h[i+105|0]=A,A=s[i+106|0]+(A>>>8|0)|0,h[i+106|0]=A,A=s[i+107|0]+(A>>>8|0)|0,h[i+107|0]=A,A=s[i+108|0]+(A>>>8|0)|0,h[i+108|0]=A,A=s[i+109|0]+(A>>>8|0)|0,h[i+109|0]=A,A=s[i+110|0]+(A>>>8|0)|0,h[i+110|0]=A,h[i+111|0]=s[i+111|0]+(A>>>8|0),_=_- -64|0,r=r-1|0,e=e+-64|0,r=e>>>0<4294967232?r+1|0:r,!!(!r&e>>>0>63|r););if(!(e|r))break r}if(A=0,j6(i+32|0,i+96|0,i,0),o=e&3,t=0,!r&e>>>0>=4|r){for(r=e&60,e=0;B=i+32|0,y=B,h[_+t|0]=s[y+t|0],u=t|1,h[u+_|0]=s[y+u|0],u=t|2,h[u+_|0]=s[y+u|0],y=t|3,h[y+_|0]=s[y+B|0],t=t+4|0,e=e+4|0,(r|0)!=(e|0););if(!o)break r}for(;h[_+t|0]=s[(i+32|0)+t|0],t=t+1|0,A=A+1|0,(o|0)!=(A|0););}Y0(i+32|0,64),Y0(i,32)}return F=i+112|0,0}function s_(_,e,r,A,t){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0;var i=0,o=0,y=0,u=0;if(i=F-112|0,F=i,y=e,o=r,e|o){e=s[t+28|0]|s[t+29|0]<<8|(s[t+30|0]<<16|s[t+31|0]<<24),n[i+24>>2]=s[t+24|0]|s[t+25|0]<<8|(s[t+26|0]<<16|s[t+27|0]<<24),n[i+28>>2]=e,e=s[t+20|0]|s[t+21|0]<<8|(s[t+22|0]<<16|s[t+23|0]<<24),n[i+16>>2]=s[t+16|0]|s[t+17|0]<<8|(s[t+18|0]<<16|s[t+19|0]<<24),n[i+20>>2]=e,e=s[t+12|0]|s[t+13|0]<<8|(s[t+14|0]<<16|s[t+15|0]<<24),n[i+8>>2]=s[t+8|0]|s[t+9|0]<<8|(s[t+10|0]<<16|s[t+11|0]<<24),n[i+12>>2]=e,e=s[t+4|0]|s[t+5|0]<<8|(s[t+6|0]<<16|s[t+7|0]<<24),n[i>>2]=s[t|0]|s[t+1|0]<<8|(s[t+2|0]<<16|s[t+3|0]<<24),n[i+4>>2]=e,e=s[A|0]|s[A+1|0]<<8|(s[A+2|0]<<16|s[A+3|0]<<24),r=s[A+4|0]|s[A+5|0]<<8|(s[A+6|0]<<16|s[A+7|0]<<24),n[i+104>>2]=0,n[i+108>>2]=0,n[i+96>>2]=e,n[i+100>>2]=r;r:{if(!o&y>>>0>=64|o){for(;k6(_,i+96|0,i,0),e=s[i+104|0]+1|0,h[i+104|0]=e,e=s[i+105|0]+(e>>>8|0)|0,h[i+105|0]=e,e=s[i+106|0]+(e>>>8|0)|0,h[i+106|0]=e,e=s[i+107|0]+(e>>>8|0)|0,h[i+107|0]=e,e=s[i+108|0]+(e>>>8|0)|0,h[i+108|0]=e,e=s[i+109|0]+(e>>>8|0)|0,h[i+109|0]=e,e=s[i+110|0]+(e>>>8|0)|0,h[i+110|0]=e,h[i+111|0]=s[i+111|0]+(e>>>8|0),_=_- -64|0,o=o-1|0,y=y+-64|0,o=y>>>0<4294967232?o+1|0:o,!!(!o&y>>>0>63|o););if(!(o|y))break r}if(r=0,k6(i+32|0,i+96|0,i,0),A=y&3,e=0,!o&y>>>0>=4|o){for(y=y&60,t=0;o=i+32|0,h[_+e|0]=s[o+e|0],u=e|1,h[u+_|0]=s[o+u|0],u=e|2,h[u+_|0]=s[o+u|0],u=e|3,h[u+_|0]=s[o+u|0],e=e+4|0,t=t+4|0,(y|0)!=(t|0););if(!A)break r}for(;h[_+e|0]=s[(i+32|0)+e|0],e=e+1|0,r=r+1|0,(A|0)!=(r|0););}Y0(i+32|0,64),Y0(i,32)}return F=i+112|0,0}function N4(_,e){_=_|0,e=e|0;var r=0,A=0;r=F-128|0,F=r,n[r+64>>2]=0,n[r+68>>2]=0,n[r+72>>2]=0,n[r+76>>2]=0,n[r+80>>2]=0,n[r+84>>2]=0,n[r+88>>2]=0,n[r+92>>2]=0,n[r+32>>2]=0,n[r+36>>2]=0,n[r+40>>2]=0,n[r+44>>2]=0,n[r+48>>2]=0,n[r+52>>2]=0,n[r+56>>2]=0,n[r+60>>2]=0,A=n[9821],n[r+96>>2]=n[9820],n[r+100>>2]=A,A=n[9823],n[r+104>>2]=n[9822],n[r+108>>2]=A,A=n[9825],n[r+112>>2]=n[9824],n[r+116>>2]=A,A=n[9827],n[r+120>>2]=n[9826],n[r+124>>2]=A,A=s[e+4|0]|s[e+5|0]<<8|(s[e+6|0]<<16|s[e+7|0]<<24),n[r>>2]=s[e|0]|s[e+1|0]<<8|(s[e+2|0]<<16|s[e+3|0]<<24),n[r+4>>2]=A,A=s[e+12|0]|s[e+13|0]<<8|(s[e+14|0]<<16|s[e+15|0]<<24),n[r+8>>2]=s[e+8|0]|s[e+9|0]<<8|(s[e+10|0]<<16|s[e+11|0]<<24),n[r+12>>2]=A,A=s[e+20|0]|s[e+21|0]<<8|(s[e+22|0]<<16|s[e+23|0]<<24),n[r+16>>2]=s[e+16|0]|s[e+17|0]<<8|(s[e+18|0]<<16|s[e+19|0]<<24),n[r+20>>2]=A,A=s[e+28|0]|s[e+29|0]<<8|(s[e+30|0]<<16|s[e+31|0]<<24),n[r+24>>2]=s[e+24|0]|s[e+25|0]<<8|(s[e+26|0]<<16|s[e+27|0]<<24),n[r+28>>2]=A,e=r- -64|0,OA(e,r),er(e),A=n[r+92>>2],e=n[r+88>>2],h[_+24|0]=e,h[_+25|0]=e>>>8,h[_+26|0]=e>>>16,h[_+27|0]=e>>>24,h[_+28|0]=A,h[_+29|0]=A>>>8,h[_+30|0]=A>>>16,h[_+31|0]=A>>>24,A=n[r+84>>2],e=n[r+80>>2],h[_+16|0]=e,h[_+17|0]=e>>>8,h[_+18|0]=e>>>16,h[_+19|0]=e>>>24,h[_+20|0]=A,h[_+21|0]=A>>>8,h[_+22|0]=A>>>16,h[_+23|0]=A>>>24,A=n[r+76>>2],e=n[r+72>>2],h[_+8|0]=e,h[_+9|0]=e>>>8,h[_+10|0]=e>>>16,h[_+11|0]=e>>>24,h[_+12|0]=A,h[_+13|0]=A>>>8,h[_+14|0]=A>>>16,h[_+15|0]=A>>>24,A=n[r+68>>2],e=n[r+64>>2],h[_|0]=e,h[_+1|0]=e>>>8,h[_+2|0]=e>>>16,h[_+3|0]=e>>>24,h[_+4|0]=A,h[_+5|0]=A>>>8,h[_+6|0]=A>>>16,h[_+7|0]=A>>>24,F=r+128|0}function GA(_,e,r,A){var t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0;r:{if(o=n[_+56>>2],t=n[_+60>>2],o|t){if(y=16-o|0,l=y,i=0-((o>>>0>16)+t|0)|0,y=(i|0)==(A|0)&r>>>0>y>>>0|A>>>0>i>>>0,B=y?l:r,y=y?i:A,l=y,y|B){T=B&3,y=_- -64|0,i=0,o=0;A:{if(!l&B>>>0>=4|l){for(j=B&-4;t=i+n[_+56>>2]|0,h[t+y|0]=s[e+i|0],v=i|1,t=v+n[_+56>>2]|0,h[t+y|0]=s[e+v|0],v=i|2,t=v+n[_+56>>2]|0,h[t+y|0]=s[e+v|0],v=i|3,t=v+n[_+56>>2]|0,h[t+y|0]=s[e+v|0],t=o,i=i+4|0,o=i>>>0<4?t+1|0:t,f=f+4|0,u=f>>>0<4?u+1|0:u,!!((j|0)!=(f|0)|(u|0)!=(l|0)););if(!(T|M))break A}for(;t=i+n[_+56>>2]|0,h[t+y|0]=s[e+i|0],t=o,i=i+1|0,o=i?t:t+1|0,t=m,g=g+1|0,t=g?t:t+1|0,m=t,!!((g|0)!=(T|0)|(M|0)!=(t|0)););}o=n[_+56>>2],t=n[_+60>>2]}if(u=t+l|0,o=o+B|0,u=o>>>0<B>>>0?u+1|0:u,n[_+56>>2]=o,n[_+60>>2]=u,!u&o>>>0<16)break r;IA(_,_- -64|0,16,0),n[_+56>>2]=0,n[_+60>>2]=0,o=r,r=o-B|0,A=A-((o>>>0<B>>>0)+l|0)|0,e=e+B|0}if(!A&r>>>0>=16|A&&(o=r&-16,IA(_,e,o,A),r=r&15,A=0,e=e+o|0),!(r|A))break r;B=r&3,l=0,y=_- -64|0,g=0,m=0,i=0,o=0;A:{if(!A&r>>>0>=4|A){for(T=r&12,f=0,u=0;t=i+n[_+56>>2]|0,h[t+y|0]=s[e+i|0],j=i|1,t=j+n[_+56>>2]|0,h[t+y|0]=s[e+j|0],j=i|2,t=j+n[_+56>>2]|0,h[t+y|0]=s[e+j|0],j=i|3,t=j+n[_+56>>2]|0,h[t+y|0]=s[e+j|0],t=o,i=i+4|0,o=i>>>0<4?t+1|0:t,f=f+4|0,u=f>>>0<4?u+1|0:u,!!((f|0)!=(T|0)|(u|0)!=(M|0)););if(!(B|l))break A}for(;t=i+n[_+56>>2]|0,h[t+y|0]=s[e+i|0],i=i+1|0,o=i?o:o+1|0,t=m,g=g+1|0,t=g?t:t+1|0,m=t,!!((B|0)!=(g|0)|(l|0)!=(t|0)););}u=A+n[_+60>>2]|0,e=r+n[_+56>>2]|0,u=e>>>0<r>>>0?u+1|0:u,n[_+56>>2]=e,n[_+60>>2]=u}}function ir(_,e){_=_|0,e=e|0;var r=0,A=0,t=0,i=0,o=0,y=0,u=0;t=F-288|0,F=t,i=_+40|0,r=n[_+32>>2]>>>3&63,A=i+r|0;r:{if(r>>>0>=56){r=64-r|0,r&&b0(A,39616,r),O6(_,i,t,t+256|0),r=i,n[r+48>>2]=0,n[r+52>>2]=0,n[r+40>>2]=0,n[r+44>>2]=0,n[r+32>>2]=0,n[r+36>>2]=0,n[r+24>>2]=0,n[r+28>>2]=0,n[r+16>>2]=0,n[r+20>>2]=0,n[r+8>>2]=0,n[r+12>>2]=0,n[r>>2]=0,n[r+4>>2]=0;break r}if(r=56-r|0,!r)break r;b0(A,39616,r)}return A=n[_+32>>2],r=A&16711680,y=r>>>8|0,o=r<<24,r=A&-16777216,u=r>>>24|0,o=o|r<<8,r=n[_+36>>2],n[_+96>>2]=o|(((r&255)<<24|A>>>8)&-16777216|((r&16777215)<<8|A>>>24)&16711680|(r>>>8&65280|r>>>24)),r=y|u|(A<<24|(A&65280)<<8),n[_+100>>2]=r,O6(_,i,t,t+256|0),r=n[_>>2],r=p2(r&16711935,8)|p2(r,24)&16711935,h[e|0]=r,h[e+1|0]=r>>>8,h[e+2|0]=r>>>16,h[e+3|0]=r>>>24,r=n[_+4>>2],r=p2(r&16711935,8)|p2(r,24)&16711935,h[e+4|0]=r,h[e+5|0]=r>>>8,h[e+6|0]=r>>>16,h[e+7|0]=r>>>24,r=n[_+8>>2],r=p2(r&16711935,8)|p2(r,24)&16711935,h[e+8|0]=r,h[e+9|0]=r>>>8,h[e+10|0]=r>>>16,h[e+11|0]=r>>>24,r=n[_+12>>2],r=p2(r&16711935,8)|p2(r,24)&16711935,h[e+12|0]=r,h[e+13|0]=r>>>8,h[e+14|0]=r>>>16,h[e+15|0]=r>>>24,r=n[_+16>>2],r=p2(r&16711935,8)|p2(r,24)&16711935,h[e+16|0]=r,h[e+17|0]=r>>>8,h[e+18|0]=r>>>16,h[e+19|0]=r>>>24,r=n[_+20>>2],r=p2(r&16711935,8)|p2(r,24)&16711935,h[e+20|0]=r,h[e+21|0]=r>>>8,h[e+22|0]=r>>>16,h[e+23|0]=r>>>24,r=n[_+24>>2],r=p2(r&16711935,8)|p2(r,24)&16711935,h[e+24|0]=r,h[e+25|0]=r>>>8,h[e+26|0]=r>>>16,h[e+27|0]=r>>>24,r=n[_+28>>2],r=p2(r&16711935,8)|p2(r,24)&16711935,h[e+28|0]=r,h[e+29|0]=r>>>8,h[e+30|0]=r>>>16,h[e+31|0]=r>>>24,Y0(t,288),Y0(_,104),F=t+288|0,0}function o_(_,e,r,A,t){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0;var i=0,o=0,y=0,u=0,B=0;if(i=F,B=i,i=i-512&-64,F=i,o=_||e,o)return u=-1,y=i+96|0,P1(y,A,t)||(A=i+128|0,M1(A,0,0,64),C2(A,y,32,0),Y0(y,32),C2(A,r,32,0),C2(A,t,32,0),r=i+32|0,I1(A,r,64),Y0(A,384),h[o|0]=s[i+32|0],_=e||_,h[_|0]=s[i+64|0],h[o+1|0]=s[i+33|0],h[_+1|0]=s[i+65|0],h[o+2|0]=s[i+34|0],h[_+2|0]=s[i+66|0],h[o+3|0]=s[i+35|0],h[_+3|0]=s[i+67|0],h[o+4|0]=s[i+36|0],h[_+4|0]=s[i+68|0],h[o+5|0]=s[i+37|0],h[_+5|0]=s[i+69|0],h[o+6|0]=s[i+38|0],h[_+6|0]=s[i+70|0],h[o+7|0]=s[i+39|0],h[_+7|0]=s[i+71|0],h[o+8|0]=s[i+40|0],h[_+8|0]=s[i+72|0],h[o+9|0]=s[i+41|0],h[_+9|0]=s[i+73|0],h[o+10|0]=s[i+42|0],h[_+10|0]=s[i+74|0],h[o+11|0]=s[i+43|0],h[_+11|0]=s[i+75|0],h[o+12|0]=s[i+44|0],h[_+12|0]=s[i+76|0],h[o+13|0]=s[i+45|0],h[_+13|0]=s[i+77|0],h[o+14|0]=s[i+46|0],h[_+14|0]=s[i+78|0],h[o+15|0]=s[i+47|0],h[_+15|0]=s[i+79|0],h[o+16|0]=s[i+48|0],h[_+16|0]=s[i+80|0],h[o+17|0]=s[i+49|0],h[_+17|0]=s[i+81|0],h[o+18|0]=s[i+50|0],h[_+18|0]=s[i+82|0],h[o+19|0]=s[i+51|0],h[_+19|0]=s[i+83|0],h[o+20|0]=s[i+52|0],h[_+20|0]=s[i+84|0],h[o+21|0]=s[i+53|0],h[_+21|0]=s[i+85|0],h[o+22|0]=s[i+54|0],h[_+22|0]=s[i+86|0],h[o+23|0]=s[i+55|0],h[_+23|0]=s[i+87|0],h[o+24|0]=s[i+56|0],h[_+24|0]=s[i+88|0],h[o+25|0]=s[i+57|0],h[_+25|0]=s[i+89|0],h[o+26|0]=s[i+58|0],h[_+26|0]=s[i+90|0],h[o+27|0]=s[i+59|0],h[_+27|0]=s[i+91|0],h[o+28|0]=s[i+60|0],h[_+28|0]=s[i+92|0],h[o+29|0]=s[i+61|0],h[_+29|0]=s[i+93|0],h[o+30|0]=s[i+62|0],h[_+30|0]=s[i+94|0],h[o+31|0]=s[i+63|0],h[_+31|0]=s[i+95|0],Y0(r,64),u=0),F=B,u|0;S2(),c2()}function y_(_,e,r,A,t){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0;var i=0,o=0,y=0,u=0,B=0;if(i=F,B=i,i=i-512&-64,F=i,o=_||e,o)return u=-1,y=i+96|0,P1(y,A,t)||(A=i+128|0,M1(A,0,0,64),C2(A,y,32,0),Y0(y,32),C2(A,t,32,0),C2(A,r,32,0),r=i+32|0,I1(A,r,64),Y0(A,384),_=e||_,h[_|0]=s[i+32|0],h[o|0]=s[i+64|0],h[_+1|0]=s[i+33|0],h[o+1|0]=s[i+65|0],h[_+2|0]=s[i+34|0],h[o+2|0]=s[i+66|0],h[_+3|0]=s[i+35|0],h[o+3|0]=s[i+67|0],h[_+4|0]=s[i+36|0],h[o+4|0]=s[i+68|0],h[_+5|0]=s[i+37|0],h[o+5|0]=s[i+69|0],h[_+6|0]=s[i+38|0],h[o+6|0]=s[i+70|0],h[_+7|0]=s[i+39|0],h[o+7|0]=s[i+71|0],h[_+8|0]=s[i+40|0],h[o+8|0]=s[i+72|0],h[_+9|0]=s[i+41|0],h[o+9|0]=s[i+73|0],h[_+10|0]=s[i+42|0],h[o+10|0]=s[i+74|0],h[_+11|0]=s[i+43|0],h[o+11|0]=s[i+75|0],h[_+12|0]=s[i+44|0],h[o+12|0]=s[i+76|0],h[_+13|0]=s[i+45|0],h[o+13|0]=s[i+77|0],h[_+14|0]=s[i+46|0],h[o+14|0]=s[i+78|0],h[_+15|0]=s[i+47|0],h[o+15|0]=s[i+79|0],h[_+16|0]=s[i+48|0],h[o+16|0]=s[i+80|0],h[_+17|0]=s[i+49|0],h[o+17|0]=s[i+81|0],h[_+18|0]=s[i+50|0],h[o+18|0]=s[i+82|0],h[_+19|0]=s[i+51|0],h[o+19|0]=s[i+83|0],h[_+20|0]=s[i+52|0],h[o+20|0]=s[i+84|0],h[_+21|0]=s[i+53|0],h[o+21|0]=s[i+85|0],h[_+22|0]=s[i+54|0],h[o+22|0]=s[i+86|0],h[_+23|0]=s[i+55|0],h[o+23|0]=s[i+87|0],h[_+24|0]=s[i+56|0],h[o+24|0]=s[i+88|0],h[_+25|0]=s[i+57|0],h[o+25|0]=s[i+89|0],h[_+26|0]=s[i+58|0],h[o+26|0]=s[i+90|0],h[_+27|0]=s[i+59|0],h[o+27|0]=s[i+91|0],h[_+28|0]=s[i+60|0],h[o+28|0]=s[i+92|0],h[_+29|0]=s[i+61|0],h[o+29|0]=s[i+93|0],h[_+30|0]=s[i+62|0],h[o+30|0]=s[i+94|0],h[_+31|0]=s[i+63|0],h[o+31|0]=s[i+95|0],Y0(r,64),u=0),F=B,u|0;S2(),c2()}function B_(_,e,r,A,t,i,o){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0,i=i|0,o=o|0;var y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0;f=e,e=t,t=0,e=e|t,y=F-128|0,F=y,g=_,B2(_,0,102),j=22,T=r|t;r:{{A:{if(A)break A;QA(e,i,o,y+16|0,y+12|0,y+8|0),u=y+96|0,t1(u,32),j=28,e=y+32|0,A=n[y+16>>2],_=n[y+12>>2],r=n[y+8>>2],i=q(_,0,r,0),o=p;n:{if(!o&i>>>0>1073741823|o|A>>>0>63||(h[e|0]=36,h[e+1|0]=55,h[e+2|0]=36,h[e+4|0]=s[(r&63)+1024|0],h[e+3|0]=s[A+1024|0],h[e+8|0]=s[(r>>>24&63)+1024|0],h[e+7|0]=s[(r>>>18&63)+1024|0],h[e+6|0]=s[(r>>>12&63)+1024|0],h[e+5|0]=s[(r>>>6&63)+1024|0],r=e+9|0,!r)||(B=e+58|0,(r|0)==(B|0))||(h[r|0]=s[(_&63)+1024|0],r=B-r|0,(r|0)==1)||(h[e+10|0]=s[(_>>>6&63)+1024|0],(r|0)==2)||(h[e+11|0]=s[(_>>>12&63)+1024|0],(r|0)==3)||(h[e+12|0]=s[(_>>>18&63)+1024|0],(r|0)==4)||(h[e+13|0]=s[(_>>>24&63)+1024|0],r=e+14|0,!r))break n;for(o=B-r|0,_=0;;){e:{if(A=r,_>>>0>=32)break e;r=s[_+u|0],i=_+1|0,v=i>>>0>=32;t:{if(v){l=0;break t}if(r=s[i+u|0]<<8|r,i=_+2|0,i>>>0>=32){l=0;break t}r=s[i+u|0]<<16|r,l=1,i=_+3|0}if(_=i,!o||(h[A|0]=s[(r&63)+1024|0],(o|0)==1))break n;h[A+1|0]=s[(r>>>6&63)+1024|0],m=A+o|0,i=A+2|0;t:{if(v)break t;if((o|0)==2)break n;if(h[A+2|0]=s[(r>>>12&63)+1024|0],i=A+3|0,!l)break t;if((o|0)==3)break n;h[A+3|0]=s[(r>>>18|0)+1024|0],i=A+4|0}if(r=i,o=m-r|0,r)continue;break n}break}if(A>>>0>=B>>>0)break n;h[A|0]=0,t=e}if(!t||(_=y+20|0,VA(_),e=$4(_,f,T,e,g),eA(_),!e))break A;_=0;break r}n[10172]=j}_=-1}return F=y+128|0,_|0}function sr(_,e,r){var A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0;g=n[e+4>>2],A=n[_+4>>2],T=n[e+8>>2],t=n[_+8>>2],m=n[e+12>>2],i=n[_+12>>2],M=n[e+16>>2],o=n[_+16>>2],C=n[e+20>>2],y=n[_+20>>2],G=n[e+24>>2],u=n[_+24>>2],v=n[e+28>>2],B=n[_+28>>2],d=n[e+32>>2],l=n[_+32>>2],X=n[e+36>>2],j=n[_+36>>2],r=0-r|0,f=n[_>>2],n[_>>2]=r&(f^n[e>>2])^f,n[_+36>>2]=j^r&(j^X),n[_+32>>2]=l^r&(l^d),n[_+28>>2]=B^r&(B^v),n[_+24>>2]=u^r&(u^G),n[_+20>>2]=y^r&(y^C),n[_+16>>2]=o^r&(o^M),n[_+12>>2]=i^r&(i^m),n[_+8>>2]=t^r&(t^T),n[_+4>>2]=A^r&(A^g),A=n[_+40>>2],g=n[e+40>>2],t=n[_+44>>2],T=n[e+44>>2],i=n[_+48>>2],m=n[e+48>>2],o=n[_+52>>2],M=n[e+52>>2],y=n[_+56>>2],C=n[e+56>>2],u=n[_+60>>2],G=n[e+60>>2],v=_- -64|0,B=n[v>>2],d=n[e- -64>>2],l=n[_+68>>2],X=n[e+68>>2],j=n[_+72>>2],f=n[e+72>>2],K=n[_+76>>2],n[_+76>>2]=K^r&(n[e+76>>2]^K),n[_+72>>2]=j^r&(j^f),n[_+68>>2]=l^r&(l^X),n[v>>2]=B^r&(B^d),n[_+60>>2]=u^r&(u^G),n[_+56>>2]=y^r&(y^C),n[_+52>>2]=o^r&(o^M),n[_+48>>2]=i^r&(i^m),n[_+44>>2]=t^r&(t^T),n[_+40>>2]=A^r&(A^g),A=n[_+80>>2],g=n[e+80>>2],t=n[_+84>>2],T=n[e+84>>2],i=n[_+88>>2],m=n[e+88>>2],o=n[_+92>>2],M=n[e+92>>2],y=n[_+96>>2],C=n[e+96>>2],u=n[_+100>>2],G=n[e+100>>2],B=n[_+104>>2],v=n[e+104>>2],l=n[_+108>>2],d=n[e+108>>2],j=n[_+112>>2],X=n[e+112>>2],f=n[e+116>>2],e=n[_+116>>2],n[_+116>>2]=r&(f^e)^e,n[_+112>>2]=j^r&(j^X),n[_+108>>2]=l^r&(l^d),n[_+104>>2]=B^r&(B^v),n[_+100>>2]=u^r&(u^G),n[_+96>>2]=y^r&(y^C),n[_+92>>2]=o^r&(o^M),n[_+88>>2]=i^r&(i^m),n[_+84>>2]=t^r&(t^T),n[_+80>>2]=A^r&(A^g)}function Tr(_,e){var r=0,A=0,t=0;for(r=F-192|0,F=r,t=r+144|0,N(t,e),A=r+96|0,N(A,t),N(A,A),r0(A,e,A),r0(t,t,A),e=r+48|0,N(e,t),r0(A,A,e),N(e,A),N(e,e),N(e,e),N(e,e),N(e,e),r0(A,e,A),N(e,A),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),r0(e,e,A),N(r,e),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),r0(e,r,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),r0(A,e,A),N(e,A),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),r0(e,e,A),N(r,e),e=1;N(r,r),e=e+1|0,(e|0)!=100;);e=r+48|0,r0(e,r,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),N(e,e),A=r+96|0,r0(A,e,A),N(A,A),N(A,A),N(A,A),N(A,A),N(A,A),r0(_,A,r+144|0),F=r+192|0}function h_(_){_=_|0;var e=0,r=0,A=0;r=F-48|0,F=r,e=s[_+28|0]|s[_+29|0]<<8|(s[_+30|0]<<16|s[_+31|0]<<24),n[r+24>>2]=s[_+24|0]|s[_+25|0]<<8|(s[_+26|0]<<16|s[_+27|0]<<24),n[r+28>>2]=e,e=s[_+20|0]|s[_+21|0]<<8|(s[_+22|0]<<16|s[_+23|0]<<24),n[r+16>>2]=s[_+16|0]|s[_+17|0]<<8|(s[_+18|0]<<16|s[_+19|0]<<24),n[r+20>>2]=e,e=s[_+12|0]|s[_+13|0]<<8|(s[_+14|0]<<16|s[_+15|0]<<24),n[r+8>>2]=s[_+8|0]|s[_+9|0]<<8|(s[_+10|0]<<16|s[_+11|0]<<24),n[r+12>>2]=e,e=s[_+4|0]|s[_+5|0]<<8|(s[_+6|0]<<16|s[_+7|0]<<24),n[r>>2]=s[_|0]|s[_+1|0]<<8|(s[_+2|0]<<16|s[_+3|0]<<24),n[r+4>>2]=e,e=s[_+40|0]|s[_+41|0]<<8|(s[_+42|0]<<16|s[_+43|0]<<24),n[r+32>>2]=s[_+36|0]|s[_+37|0]<<8|(s[_+38|0]<<16|s[_+39|0]<<24),n[r+36>>2]=e,nA(r,r,40,0,_+32|0,_),e=n[r+28>>2],A=n[r+24>>2],h[_+24|0]=A,h[_+25|0]=A>>>8,h[_+26|0]=A>>>16,h[_+27|0]=A>>>24,h[_+28|0]=e,h[_+29|0]=e>>>8,h[_+30|0]=e>>>16,h[_+31|0]=e>>>24,e=n[r+20>>2],A=n[r+16>>2],h[_+16|0]=A,h[_+17|0]=A>>>8,h[_+18|0]=A>>>16,h[_+19|0]=A>>>24,h[_+20|0]=e,h[_+21|0]=e>>>8,h[_+22|0]=e>>>16,h[_+23|0]=e>>>24,e=n[r+12>>2],A=n[r+8>>2],h[_+8|0]=A,h[_+9|0]=A>>>8,h[_+10|0]=A>>>16,h[_+11|0]=A>>>24,h[_+12|0]=e,h[_+13|0]=e>>>8,h[_+14|0]=e>>>16,h[_+15|0]=e>>>24,e=n[r+4>>2],A=n[r>>2],h[_|0]=A,h[_+1|0]=A>>>8,h[_+2|0]=A>>>16,h[_+3|0]=A>>>24,h[_+4|0]=e,h[_+5|0]=e>>>8,h[_+6|0]=e>>>16,h[_+7|0]=e>>>24,A=n[r+36>>2],e=n[r+32>>2],h[_+32|0]=1,h[_+33|0]=0,h[_+34|0]=0,h[_+35|0]=0,h[_+36|0]=e,h[_+37|0]=e>>>8,h[_+38|0]=e>>>16,h[_+39|0]=e>>>24,h[_+40|0]=A,h[_+41|0]=A>>>8,h[_+42|0]=A>>>16,h[_+43|0]=A>>>24,F=r+48|0}function dA(_,e){var r=0,A=0,t=0;for(A=F-144|0,F=A,t=A+96|0,N(t,e),r=A+48|0,N(r,t),N(r,r),r0(r,e,r),r0(t,t,r),N(t,t),r0(t,r,t),N(r,t),N(r,r),N(r,r),N(r,r),N(r,r),r0(t,r,t),N(r,t),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),r0(r,r,t),N(A,r),N(A,A),N(A,A),N(A,A),N(A,A),N(A,A),N(A,A),N(A,A),N(A,A),N(A,A),N(A,A),N(A,A),N(A,A),N(A,A),N(A,A),N(A,A),N(A,A),N(A,A),N(A,A),N(A,A),r0(r,A,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),r0(t,r,t),N(r,t),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),r0(r,r,t),N(A,r),r=1;N(A,A),r=r+1|0,(r|0)!=100;);r=A+48|0,r0(r,A,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),N(r,r),t=A+96|0,r0(t,r,t),N(t,t),N(t,t),r0(_,t,e),F=A+144|0}function O4(_,e){var r=0,A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0;r=F-320|0,F=r,o=_+40|0,qr(o,e),n[_+84>>2]=0,n[_+88>>2]=0,n[_+80>>2]=1,n[_+92>>2]=0,n[_+96>>2]=0,n[_+100>>2]=0,n[_+104>>2]=0,n[_+108>>2]=0,n[_+112>>2]=0,n[_+116>>2]=0,i=r+240|0,N(i,o),t=r+192|0,r0(t,i,1584),u=-1,y=n[r+240>>2]-1|0,n[r+240>>2]=y,n[r+192>>2]=n[r+192>>2]+1,B=n[r+244>>2],l=n[r+248>>2],j=n[r+252>>2],v=n[r+256>>2],f=n[r+260>>2],g=n[r+264>>2],T=n[r+268>>2],m=n[r+272>>2],M=n[r+276>>2],A=r+144|0,N(A,t),r0(A,A,t),N(_,A),r0(_,_,t),r0(_,_,i),dA(_,_),r0(_,_,A),r0(_,_,i),A=r+96|0,N(A,_),r0(A,A,t),t=n[r+132>>2],n[r+84>>2]=t-M,A=n[r+128>>2],n[r+80>>2]=A-m,i=n[r+124>>2],n[r+76>>2]=i-T,C=n[r+120>>2],n[r+72>>2]=C-g,G=n[r+116>>2],n[r+68>>2]=G-f,d=n[r+112>>2],n[r+64>>2]=d-v,X=n[r+108>>2],n[r+60>>2]=X-j,K=n[r+104>>2],n[r+56>>2]=K-l,O=n[r+100>>2],n[r+52>>2]=O-B,U=n[r+96>>2],n[r+48>>2]=U-y,G2(r,r+48|0);r:{if(!n1(r,32)){if(n[r+36>>2]=t+M,n[r+32>>2]=A+m,n[r+28>>2]=i+T,n[r+24>>2]=g+C,n[r+20>>2]=f+G,n[r+16>>2]=v+d,n[r+12>>2]=j+X,n[r+8>>2]=l+K,n[r+4>>2]=B+O,n[r>>2]=y+U,t=r+288|0,G2(t,r),!n1(t,32))break r;r0(_,_,1632)}G2(r+288|0,_),(h[r+288|0]&1)==(s[e+31|0]>>>7|0)&&(n[_>>2]=0-n[_>>2],n[_+36>>2]=0-n[_+36>>2],n[_+32>>2]=0-n[_+32>>2],n[_+28>>2]=0-n[_+28>>2],n[_+24>>2]=0-n[_+24>>2],n[_+20>>2]=0-n[_+20>>2],n[_+16>>2]=0-n[_+16>>2],n[_+12>>2]=0-n[_+12>>2],n[_+8>>2]=0-n[_+8>>2],n[_+4>>2]=0-n[_+4>>2]),r0(_+120|0,_,o),u=0}return F=r+320|0,u}function U4(_,e,r){var A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0;A=F-128|0,F=A,t=s[41218],n[_+4>>2]=0,n[_+8>>2]=0,n[_>>2]=1,n[_+12>>2]=0,n[_+16>>2]=0,n[_+20>>2]=0,n[_+24>>2]=0,n[_+28>>2]=0,n[_+32>>2]=0,n[_+36>>2]=0,n[_+40>>2]=1,B2(_+44|0,0,76),e=E0(e,960)+2992|0,t=t>>>2^(r&128)>>>7,r=r-((0-t&r)<<1)|0,sr(_,e,s[41218]>>>2^((r^1)&255)-1>>>31),sr(_,e+120|0,s[41218]>>>2^((r^2)&255)-1>>>31),sr(_,e+240|0,s[41218]>>>2^((r^3)&255)-1>>>31),sr(_,e+360|0,s[41218]>>>2^((r^4)&255)-1>>>31),sr(_,e+480|0,s[41218]>>>2^((r^5)&255)-1>>>31),sr(_,e+600|0,s[41218]>>>2^((r^6)&255)-1>>>31),sr(_,e+720|0,s[41218]>>>2^((r^7)&255)-1>>>31),sr(_,e+840|0,s[41218]>>>2^((r^8)&255)-1>>>31),e=n[_+76>>2],n[A+40>>2]=n[_+72>>2],n[A+44>>2]=e,e=_- -64|0,r=n[e+4>>2],n[A+32>>2]=n[e>>2],n[A+36>>2]=r,e=n[_+60>>2],n[A+24>>2]=n[_+56>>2],n[A+28>>2]=e,e=n[_+52>>2],n[A+16>>2]=n[_+48>>2],n[A+20>>2]=e,e=n[_+44>>2],n[A+8>>2]=n[_+40>>2],n[A+12>>2]=e,e=n[_+4>>2],n[A+48>>2]=n[_>>2],n[A+52>>2]=e,e=n[_+12>>2],n[A+56>>2]=n[_+8>>2],n[A+60>>2]=e,e=n[_+20>>2],n[A+64>>2]=n[_+16>>2],n[A+68>>2]=e,e=n[_+28>>2],n[A+72>>2]=n[_+24>>2],n[A+76>>2]=e,e=n[_+36>>2],n[A+80>>2]=n[_+32>>2],n[A+84>>2]=e,e=n[_+80>>2],r=n[_+84>>2],i=n[_+88>>2],o=n[_+92>>2],y=n[_+96>>2],u=n[_+100>>2],B=n[_+104>>2],l=n[_+108>>2],j=n[_+112>>2],n[A+124>>2]=0-n[_+116>>2],n[A+120>>2]=0-j,n[A+116>>2]=0-l,n[A+112>>2]=0-B,n[A+108>>2]=0-u,n[A+104>>2]=0-y,n[A+100>>2]=0-o,n[A+96>>2]=0-i,n[A+92>>2]=0-r,n[A+88>>2]=0-e,sr(_,A+8|0,t),F=A+128|0}function u_(_,e){_=_|0,e=e|0;var r=0,A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0;return r=F-304|0,F=r,h[_|0]=s[e|0],h[_+1|0]=s[e+1|0],h[_+2|0]=s[e+2|0],h[_+3|0]=s[e+3|0],h[_+4|0]=s[e+4|0],h[_+5|0]=s[e+5|0],h[_+6|0]=s[e+6|0],h[_+7|0]=s[e+7|0],h[_+8|0]=s[e+8|0],h[_+9|0]=s[e+9|0],h[_+10|0]=s[e+10|0],h[_+11|0]=s[e+11|0],h[_+12|0]=s[e+12|0],h[_+13|0]=s[e+13|0],h[_+14|0]=s[e+14|0],h[_+15|0]=s[e+15|0],h[_+16|0]=s[e+16|0],h[_+17|0]=s[e+17|0],h[_+18|0]=s[e+18|0],h[_+19|0]=s[e+19|0],h[_+20|0]=s[e+20|0],h[_+21|0]=s[e+21|0],h[_+22|0]=s[e+22|0],h[_+23|0]=s[e+23|0],h[_+24|0]=s[e+24|0],h[_+25|0]=s[e+25|0],h[_+26|0]=s[e+26|0],h[_+27|0]=s[e+27|0],h[_+28|0]=s[e+28|0],h[_+29|0]=s[e+29|0],h[_+30|0]=s[e+30|0],e=s[e+31|0],h[_|0]=s[_|0]&248,h[_+31|0]=e&63|64,Nr(r+48|0,_),e=n[r+128>>2],A=n[r+88>>2],t=n[r+132>>2],i=n[r+92>>2],o=n[r+136>>2],y=n[r+96>>2],u=n[r+140>>2],B=n[r+100>>2],l=n[r+144>>2],j=n[r+104>>2],v=n[r+148>>2],f=n[r+108>>2],g=n[r+152>>2],T=n[r+112>>2],m=n[r+156>>2],M=n[r+116>>2],C=n[r+160>>2],G=n[r+120>>2],d=n[r+124>>2],X=n[r+164>>2],n[r+292>>2]=d+X,n[r+288>>2]=C+G,n[r+284>>2]=m+M,n[r+280>>2]=g+T,n[r+276>>2]=v+f,n[r+272>>2]=l+j,n[r+268>>2]=u+B,n[r+264>>2]=o+y,n[r+260>>2]=t+i,n[r+256>>2]=e+A,n[r+244>>2]=X-d,n[r+240>>2]=C-G,n[r+236>>2]=m-M,n[r+232>>2]=g-T,n[r+228>>2]=v-f,n[r+224>>2]=l-j,n[r+220>>2]=u-B,n[r+216>>2]=o-y,n[r+212>>2]=t-i,n[r+208>>2]=e-A,e=r+208|0,Tr(e,e),r0(r,r+256|0,e),G2(_,r),F=r+304|0,0}function B6(_){var e=0,r=0,A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0,K=0,O=0,U=0,x=0,z=0,$=0,J=0;return e=F-320|0,F=e,A=e+240|0,N(A,_),t=e+192|0,N(t,_+40|0),r=e+144|0,N(r,_+80|0),_=n[e+240>>2],i=n[e+192>>2],o=n[e+244>>2],y=n[e+196>>2],u=n[e+248>>2],B=n[e+200>>2],l=n[e+252>>2],j=n[e+204>>2],v=n[e+256>>2],f=n[e+208>>2],g=n[e+260>>2],T=n[e+212>>2],m=n[e+264>>2],M=n[e+216>>2],C=n[e+268>>2],G=n[e+220>>2],d=n[e+272>>2],X=n[e+224>>2],n[e+84>>2]=n[e+228>>2]-n[e+276>>2],n[e+80>>2]=X-d,n[e+76>>2]=G-C,n[e+72>>2]=M-m,n[e+68>>2]=T-g,n[e+64>>2]=f-v,n[e+60>>2]=j-l,n[e+56>>2]=B-u,n[e+52>>2]=y-o,n[e+48>>2]=i-_,_=e+48|0,r0(_,_,r),r0(e,A,t),r0(e,e,1584),N(e+96|0,r),r=n[e+48>>2],A=n[e+96>>2],t=n[e>>2],i=n[e+52>>2],o=n[e+100>>2],y=n[e+4>>2],u=n[e+56>>2],B=n[e+104>>2],l=n[e+8>>2],j=n[e+60>>2],v=n[e+108>>2],f=n[e+12>>2],g=n[e+64>>2],T=n[e+112>>2],m=n[e+16>>2],M=n[e+68>>2],C=n[e+116>>2],G=n[e+20>>2],d=n[e+72>>2],X=n[e+120>>2],K=n[e+24>>2],O=n[e+76>>2],U=n[e+124>>2],x=n[e+28>>2],z=n[e+80>>2],$=n[e+128>>2],J=n[e+32>>2],n[e+84>>2]=n[e+84>>2]-(n[e+132>>2]+n[e+36>>2]|0),n[e+80>>2]=z-($+J|0),n[e+76>>2]=O-(U+x|0),n[e+72>>2]=d-(X+K|0),n[e+68>>2]=M-(C+G|0),n[e+64>>2]=g-(T+m|0),n[e+60>>2]=j-(v+f|0),n[e+56>>2]=u-(B+l|0),n[e+52>>2]=i-(o+y|0),n[e+48>>2]=r-(A+t|0),r=e+288|0,G2(r,_),_=n1(r,32),F=e+320|0,_}function LA(_,e,r,A,t){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0;var i=0,o=0,y=0,u=0,B=0,l=0,j=0;r:{A:{n:{e:{t:{_:{if((t&-7)!=1)break _;i=(A>>>0)/3|0,y=i<<2,i=E0(i,-3)+A|0;o:{if(!i)break o;if(!(t&2)){y=y+4|0;break o}y=((i>>>1|0)+y|0)+2|0}if(e>>>0<=y>>>0)break _;o:{if(t>>>0>=4){if(!A){t=0;break A}i=0,t=0;break o}if(!A){t=0;break A}i=0,t=0;break t}for(;;){for(B=s[r+u|0]|B<<8,i=i|8;i=i-6|0,o=B>>>i&63,l=o+65510>>>8|0,j=o+65484>>>8|0,h[_+t|0]=((o^16321)+1^-1)>>>8&45|((o+32705^-1)>>>8&95|(j&(o+71&(l^-1))|l&o+65)|o+252&o+65474>>>8&(j^-1)),t=t+1|0,i>>>0>5;);if(u=u+1|0,(u|0)==(A|0))break}if(!i)break n;u=45,o=95,A=32705;break e}S2(),c2()}for(;;){for(B=s[r+u|0]|B<<8,i=i|8;i=i-6|0,o=B>>>i&63,l=o+65510>>>8|0,j=o+65484>>>8|0,h[_+t|0]=((o^16321)+1^-1)>>>8&43|((o+16321^-1)>>>8&47|(j&(o+71&(l^-1))|l&o+65)|o+252&o+65474>>>8&(j^-1)),t=t+1|0,i>>>0>5;);if(u=u+1|0,(u|0)==(A|0))break}if(!i)break n;u=43,o=47,A=16321}r=B<<6-i&63,i=r+65510>>>8|0,B=r+65484>>>8|0,h[_+t|0]=((r^16321)+1^-1)>>>8&u|(o&(r+A^-1)>>>8|(B&(r+71&(i^-1))|i&r+65)|r+252&r+65474>>>8&(B^-1)),t=t+1|0}if(t>>>0>y>>>0)break r}A:{if(t>>>0>=y>>>0){y=t;break A}if(r=y-t|0,!r)break A;B2(_+t|0,61,r)}return r=y+1|0,e=(e>>>0>r>>>0?e:r)-y|0,e&&B2(_+y|0,0,e),_|0}F6(1104,1218,231,1503),c2()}function C2(_,e,r,A){var t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0;if(r|A)r:for(j=_+224|0,l=_+96|0,i=s[_+352|0]|s[_+353|0]<<8|(s[_+354|0]<<16|s[_+355|0]<<24),o=_- -64|0;;){if(t=i+l|0,u=256-i|0,!A&r>>>0<=u>>>0){r&&b0(t,e,r),e=r+(s[_+352|0]|s[_+353|0]<<8|(s[_+354|0]<<16|s[_+355|0]<<24))|0,h[_+352|0]=e,h[_+353|0]=e>>>8,h[_+354|0]=e>>>16,h[_+355|0]=e>>>24;break r}if(u&&b0(t,e,u),t=u+(s[_+352|0]|s[_+353|0]<<8|(s[_+354|0]<<16|s[_+355|0]<<24))|0,h[_+352|0]=t,h[_+353|0]=t>>>8,h[_+354|0]=t>>>16,h[_+355|0]=t>>>24,i=s[o+4|0]|s[o+5|0]<<8|(s[o+6|0]<<16|s[o+7|0]<<24),v=i,y=s[o|0]|s[o+1|0]<<8|(s[o+2|0]<<16|s[o+3|0]<<24),B=y+128|0,i=B>>>0<128?i+1|0:i,t=o,h[t|0]=B,h[t+1|0]=B>>>8,h[t+2|0]=B>>>16,h[t+3|0]=B>>>24,h[t+4|0]=i,h[t+5|0]=i>>>8,h[t+6|0]=i>>>16,h[t+7|0]=i>>>24,i=s[_+76|0]|s[_+77|0]<<8|(s[_+78|0]<<16|s[_+79|0]<<24),t=(v|0)==-1&y>>>0>4294967167,y=t+(s[_+72|0]|s[_+73|0]<<8|(s[_+74|0]<<16|s[_+75|0]<<24))|0,i=t>>>0>y>>>0?i+1|0:i,h[_+72|0]=y,h[_+73|0]=y>>>8,h[_+74|0]=y>>>16,h[_+75|0]=y>>>24,h[_+76|0]=i,h[_+77|0]=i>>>8,h[_+78|0]=i>>>16,h[_+79|0]=i>>>24,o6(_,l),b0(l,j,128),i=(s[_+352|0]|s[_+353|0]<<8|(s[_+354|0]<<16|s[_+355|0]<<24))-128|0,t=i,h[_+352|0]=t,h[_+353|0]=t>>>8,h[_+354|0]=t>>>16,h[_+355|0]=t>>>24,e=e+u|0,A=A-(r>>>0<u>>>0)|0,r=r-u|0,!(A|r))break}return 0}function l_(_,e,r,A,t,i,o){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0,i=i|0,o=o|0;var y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0;r:{A:{n:{e:{t:{_:{o:{i:{B:{if(A){if(t)break B;for(u=1,t=0;;){if(j=s[r+y|0],B=(j&223)-55&255,f=(B+65526^B+65520)>>>8|0,j=j^48,g=j+65526>>>8|0,!((f|g)&255))break o;if(e>>>0<=v>>>0)break i;B=B&f|j&g;s:{if(!(l&255)){t=B<<4;break s}h[_+v|0]=t|B,v=v+1|0}if(l=l^-1,y=y+1|0,(y|0)==(A|0))break}y=A;break o}if(_=0,!o)break r;break n}for(;;){B:{s:{y:{h:{u:{if(B=s[r+y|0],u=(B&223)-55&255,j=(u+65526^u+65520)>>>8|0,f=B^48,g=f+65526>>>8|0,!((j|g)&255)){if(l&255)break _;if(u=0,!Ur(t,B))break e;if(l=y+1|0,y=l,y>>>0<A>>>0)break u;break e}if(e>>>0<=v>>>0)break i;if(u=u&j|f&g,!(l&255))break h;h[_+v|0]=u|T,l=l^-1,v=v+1|0;break B}for(;;){if(B=s[r+y|0],j=(B&223)-55&255,f=(j+65526^j+65520)>>>8|0,g=B^48,T=g+65526>>>8|0,!((f|T)&255)){if(!Ur(t,B))break e;if(y=y+1|0,y>>>0<A>>>0)continue;break y}break}if(e>>>0<=v>>>0)break s;u=j&f|g&T}T=u<<4,l=255;break B}y=A>>>0>l>>>0?A:l;break e}l=0;break i}if(u=1,y=y+1|0,!(y>>>0<A>>>0))break}break o}n[10172]=68,u=0}if(!(l&255))break t}n[10172]=28,u=-1,y=y-1|0,v=0;break e}v=u?v:0,u=u-1|0}if(o)break n;if((A|0)!=(y|0))break A;_=u;break r}n[o>>2]=r+y,_=u;break r}n[10172]=28,_=-1}return i&&(n[i>>2]=v),_|0}function x4(_,e,r){var A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0;t=F-16|0,F=t,B=n[_+20>>2],n[_+20>>2]=0,l=n[_+4>>2],n[_+4>>2]=0,y=-26;r:{A:{n:{e:switch(r-1|0){case 1:if(Vr(e,1182,9))break A;e=e+9|0;break n;case 0:break e;default:break r}if(Vr(e,1173,8))break A;e=e+8|0}if(s[e|0]!=36|s[e+1|0]!=118|s[e+2|0]!=61||(i=e+3|0,u=s[i|0],(u-58&255)>>>0<246))break A;for(e=0,o=u,r=i;;){if(A=r,e>>>0>429496729||(r=(o&255)-48|0,e=E0(e,10),r>>>0>(e^-1)>>>0))break A;if(e=e+r|0,r=A+1|0,o=s[r|0],!((o-58&255)>>>0>245))break}if((u|0)==48&(A|0)!=(i|0)|(r|0)==(i|0))break A;if((e|0)!=19)break r;if((o&255)!=36|s[A+2|0]!=109|s[A+3|0]!=61||(e=t+12|0,r=NA(A+4|0,e),!r)||(n[_+44>>2]=n[t+12>>2],s[r|0]!=44|s[r+1|0]!=116|s[r+2|0]!=61)||(r=NA(r+3|0,e),!r)||(n[_+40>>2]=n[t+12>>2],s[r|0]!=44|s[r+1|0]!=112|s[r+2|0]!=61)||(r=NA(r+3|0,e),!r)||(A=n[t+12>>2],n[_+48>>2]=A,n[_+52>>2]=A,s[r|0]!=36)||(n[t+12>>2]=B,i=n[_+16>>2],r=r+1|0,A=r,o=T1(r),r=t+8|0,HA(i,B,A,o,0,e,r,3))||(n[_+20>>2]=n[t+12>>2],A=n[t+8>>2],s[A|0]!=36)||(n[t+12>>2]=l,A=A+1|0,HA(n[_>>2],l,A,T1(A),0,e,r,3)))break A;if(n[_+4>>2]=n[t+12>>2],e=n[t+8>>2],y=FA(_),y)break r;y=s[e|0]?-32:0;break r}y=-32}return F=t+16|0,y}function V4(_){var e=0,r=0,A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0,X=0;for(r=n[_+60>>2],m=n[_+56>>2],T=n[_+52>>2],f=n[_+48>>2],e=n[_+44>>2],A=n[_+40>>2],M=n[_+36>>2],v=n[_+32>>2],t=n[_+28>>2],i=n[_+24>>2],o=n[_+20>>2],y=n[_+16>>2],u=n[_+12>>2],B=n[_+8>>2],l=n[_+4>>2],j=n[_>>2];g=b(o+l|0,7)^M,C=b(g+o|0,9)^T,y=b(j+f|0,7)^y,G=b(y+j|0,9)^v,d=b(G+y|0,13)^f,u=b(e+r|0,7)^u,t=b(u+r|0,9)^t,v=b(t+u|0,13)^e,r=b(t+v|0,18)^r,e=b(A+i|0,7)^m,f=d^b(r+e|0,7),T=C^b(f+r|0,9),m=b(f+T|0,13)^e,r=b(T+m|0,18)^r,B=b(e+A|0,9)^B,i=b(B+e|0,13)^i,A=b(i+B|0,18)^A,e=b(A+g|0,7)^v,v=b(e+A|0,9)^G,M=b(e+v|0,13)^g,A=b(v+M|0,18)^A,l=b(g+C|0,13)^l,o=b(l+C|0,18)^o,i=b(o+y|0,7)^i,t=b(i+o|0,9)^t,y=b(t+i|0,13)^y,o=b(y+t|0,18)^o,j=b(G+d|0,18)^j,l=b(j+u|0,7)^l,B=b(l+j|0,9)^B,u=b(B+l|0,13)^u,j=b(u+B|0,18)^j,g=X>>>0<6,X=X+2|0,!!g;);n[_>>2]=n[_>>2]+j,n[_+4>>2]=n[_+4>>2]+l,n[_+8>>2]=n[_+8>>2]+B,n[_+12>>2]=n[_+12>>2]+u,n[_+16>>2]=n[_+16>>2]+y,n[_+20>>2]=n[_+20>>2]+o,n[_+24>>2]=n[_+24>>2]+i,n[_+28>>2]=n[_+28>>2]+t,n[_+32>>2]=n[_+32>>2]+v,n[_+36>>2]=n[_+36>>2]+M,n[_+40>>2]=n[_+40>>2]+A,n[_+44>>2]=n[_+44>>2]+e,n[_+48>>2]=n[_+48>>2]+f,n[_+52>>2]=n[_+52>>2]+T,n[_+56>>2]=n[_+56>>2]+m,n[_+60>>2]=n[_+60>>2]+r}function z4(_,e,r,A){var t=0,i=0;t=F-320|0,F=t,i=-1;r:{if(!KA(r)||l6(r)||Pr(t,r)||!mA(t)||(h[_|0]=s[e|0],h[_+1|0]=s[e+1|0],h[_+2|0]=s[e+2|0],h[_+3|0]=s[e+3|0],h[_+4|0]=s[e+4|0],h[_+5|0]=s[e+5|0],h[_+6|0]=s[e+6|0],h[_+7|0]=s[e+7|0],h[_+8|0]=s[e+8|0],h[_+9|0]=s[e+9|0],h[_+10|0]=s[e+10|0],h[_+11|0]=s[e+11|0],h[_+12|0]=s[e+12|0],h[_+13|0]=s[e+13|0],h[_+14|0]=s[e+14|0],h[_+15|0]=s[e+15|0],h[_+16|0]=s[e+16|0],h[_+17|0]=s[e+17|0],h[_+18|0]=s[e+18|0],h[_+19|0]=s[e+19|0],h[_+20|0]=s[e+20|0],h[_+21|0]=s[e+21|0],h[_+22|0]=s[e+22|0],h[_+23|0]=s[e+23|0],h[_+24|0]=s[e+24|0],h[_+25|0]=s[e+25|0],h[_+26|0]=s[e+26|0],h[_+27|0]=s[e+27|0],h[_+28|0]=s[e+28|0],h[_+29|0]=s[e+29|0],h[_+30|0]=s[e+30|0],r=s[e+31|0],A&&(h[_|0]=s[_|0]&248,r=r|64),h[_+31|0]=r&127,r=t+160|0,v4(r,_,t),jr(_,r),(s[_+31|0]&127|(s[_+30|0]|(s[_+29|0]|(s[_+28|0]|(s[_+27|0]|(s[_+26|0]|(s[_+25|0]|(s[_+24|0]|(s[_+23|0]|(s[_+22|0]|(s[_+21|0]|(s[_+20|0]|(s[_+19|0]|(s[_+18|0]|(s[_+17|0]|(s[_+16|0]|(s[_+15|0]|(s[_+14|0]|(s[_+13|0]|(s[_+12|0]|(s[_+11|0]|(s[_+10|0]|(s[_+9|0]|(s[_+8|0]|(s[_+7|0]|(s[_+6|0]|(s[_+5|0]|(s[_+4|0]|(s[_+3|0]|(s[_+2|0]|(s[_+1|0]|s[_|0]^1)))))))))))))))))))))))))))))))-1&256))break r;i=n1(e,32)?-1:0}return F=t+320|0,i}function $4(_,e,r,A,t){var i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0;l=F-48|0,F=l,t&&t1(t,102);r:{if(s[A|0]!=36|s[A+1|0]!=55|s[A+2|0]!=36||(j=Dr(s[A+3|0]),!j)||(o=E6(l+12|0,A+4|0),!o)||(B=E6(l+8|0,o),!B))break r;for(y=T1(B)+1|0;;){A:{if(o=0,!y)break A;if(y=y-1|0,o=B+y|0,s[o|0]!=36)continue}break}u=o-B|0;A:{if(o)break A;u=T1(B)}if(o=u,y=o+(B-A|0)|0,u=y+45|0,u>>>0>102|o>>>0>u>>>0||(u=_,v=e,f=r,j=j-1024|0,_=j&31,(j&63)>>>0>=32?(e=1<<_,r=0):(r=1<<_,e=r-1&1>>>32-_),Q4(u,v,f,B,o,r,e,n[l+12>>2],n[l+8>>2],l+16|0,32)))break r;for(y&&b0(t,A,y),_=t+y|0,h[_|0]=36,r=(y^-1)+102|0,i=_+1|0,_=0;;){A:{if(e=i,A=_,A>>>0>31){o=i;break A}y=A+1|0,_=31-A|0,u=_>>>0>=2?2:_,_=y+u|0,o=0,B=0,j=l+16|0,i=s[j+A|0];n:{if(!u||(i=s[y+j|0]<<8|i,A=A+2|0,(A|0)==(_|0)))break n;B=1,i=s[A+j|0]<<16|i}if(!r||(h[e|0]=s[(i&63)+1024|0],(r|0)==1))break A;h[e+1|0]=s[(i>>>6&63)+1024|0],u=e+r|0,A=e+2|0;n:{if((_|0)==(y|0))break n;if((r|0)==2)break A;if(h[e+2|0]=s[(i>>>12&63)+1024|0],A=e+3|0,!B)break n;if((r|0)==3)break A;h[e+3|0]=s[(i>>>18|0)+1024|0],A=e+4|0}if(i=A,r=u-i|0,i)continue}break}if(Y0(l+16|0,32),i=0,!o|t+102>>>0<=o>>>0)break r;h[o|0]=0,i=t}return F=l+48|0,i}function L2(_,e){var r=0,A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0,C=0,G=0,d=0;r=n[e+40>>2],t=n[e+4>>2],i=n[e+44>>2],o=n[e+8>>2],y=n[e+48>>2],u=n[e+12>>2],B=n[e+52>>2],l=n[e+16>>2],j=n[e+56>>2],v=n[e+20>>2],f=n[e+60>>2],g=n[e+24>>2],A=e- -64|0,T=n[A>>2],m=n[e+28>>2],M=n[e+68>>2],C=n[e+32>>2],G=n[e+72>>2],d=n[e>>2],n[_+36>>2]=n[e+36>>2]+n[e+76>>2],n[_+32>>2]=C+G,n[_+28>>2]=m+M,n[_+24>>2]=g+T,n[_+20>>2]=v+f,n[_+16>>2]=l+j,n[_+12>>2]=u+B,n[_+8>>2]=o+y,n[_+4>>2]=t+i,n[_>>2]=r+d,r=n[e+40>>2],t=n[e+4>>2],i=n[e+44>>2],o=n[e+8>>2],y=n[e+48>>2],u=n[e+12>>2],B=n[e+52>>2],l=n[e+16>>2],j=n[e+56>>2],v=n[e+20>>2],f=n[e+60>>2],g=n[e+24>>2],A=n[A>>2],T=n[e+28>>2],m=n[e+68>>2],M=n[e+32>>2],C=n[e+72>>2],G=n[e>>2],n[_+76>>2]=n[e+76>>2]-n[e+36>>2],n[_+72>>2]=C-M,n[_+68>>2]=m-T,n[_- -64>>2]=A-g,n[_+60>>2]=f-v,n[_+56>>2]=j-l,n[_+52>>2]=B-u,n[_+48>>2]=y-o,n[_+44>>2]=i-t,n[_+40>>2]=r-G,r=n[e+84>>2],n[_+80>>2]=n[e+80>>2],n[_+84>>2]=r,r=n[e+92>>2],n[_+88>>2]=n[e+88>>2],n[_+92>>2]=r,r=n[e+100>>2],n[_+96>>2]=n[e+96>>2],n[_+100>>2]=r,r=n[e+108>>2],n[_+104>>2]=n[e+104>>2],n[_+108>>2]=r,r=n[e+116>>2],n[_+112>>2]=n[e+112>>2],n[_+116>>2]=r,r0(_+120|0,e+120|0,1680)}function XA(_,e){var r=0,A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0,T=0,m=0,M=0;if(r=n[_+56>>2],A=n[_+60>>2],r|A){i=_- -64|0,h[i+r|0]=1,j=r+1|0,A=j?A:A+1|0;r:{if(!A&j>>>0>15|A||(A=15-r|0,!A))break r;B2((_+r|0)+65|0,0,A)}h[_+80|0]=1,IA(_,i,16,0)}j=n[_+52>>2],B=n[_+48>>2],i=n[_+44>>2],r=n[_+24>>2],o=n[_+28>>2]+(r>>>26|0)|0,t=n[_+32>>2]+(o>>>26|0)|0,v=n[_+36>>2]+(t>>>26|0)|0,y=n[_+20>>2]+E0(v>>>26|0,5)|0,u=y&67108863,A=u+5|0,g=t&67108863,l=o&67108863,r=(r&67108863)+(y>>>26|0)|0,y=r+(A>>>26|0)|0,T=l+(y>>>26|0)|0,m=g+(T>>>26|0)|0,M=(v&67108863)+(m>>>26|0)|0,t=M-67108864|0,o=t>>31,f=y,y=(t>>>31|0)-1|0,t=y&67108863,r=r&o|f&t,u=r<<26|(A&t|o&u),A=u+n[_+40>>2]|0,h[e|0]=A,h[e+1|0]=A>>>8,h[e+2|0]=A>>>16,h[e+3|0]=A>>>24,u=A>>>0<u>>>0,A=0,l=o&l|t&T,r=l<<20|r>>>6,f=r,r=r+i|0,A=f>>>0>r>>>0?1:A,i=r,r=r+u|0,A=i>>>0>r>>>0?A+1|0:A,h[e+4|0]=r,h[e+5|0]=r>>>8,h[e+6|0]=r>>>16,h[e+7|0]=r>>>24,r=0,t=o&g|t&m,i=t<<14|l>>>12,B=i+B|0,i=i>>>0>B>>>0?1:r,r=B,B=A,r=r+A|0,A=i,A=r>>>0<B>>>0?A+1|0:A,h[e+8|0]=r,h[e+9|0]=r>>>8,h[e+10|0]=r>>>16,h[e+11|0]=r>>>24,r=(y&M|o&v)<<8|t>>>18,r=r+j|0,A=r+A|0,h[e+12|0]=A,h[e+13|0]=A>>>8,h[e+14|0]=A>>>16,h[e+15|0]=A>>>24,Y0(_,88)}function Z4(_,e,r){var A=0,t=0;return A=F-160|0,F=A,h[_|0]=s[e|0],h[_+1|0]=s[e+1|0],h[_+2|0]=s[e+2|0],h[_+3|0]=s[e+3|0],h[_+4|0]=s[e+4|0],h[_+5|0]=s[e+5|0],h[_+6|0]=s[e+6|0],h[_+7|0]=s[e+7|0],h[_+8|0]=s[e+8|0],h[_+9|0]=s[e+9|0],h[_+10|0]=s[e+10|0],h[_+11|0]=s[e+11|0],h[_+12|0]=s[e+12|0],h[_+13|0]=s[e+13|0],h[_+14|0]=s[e+14|0],h[_+15|0]=s[e+15|0],h[_+16|0]=s[e+16|0],h[_+17|0]=s[e+17|0],h[_+18|0]=s[e+18|0],h[_+19|0]=s[e+19|0],h[_+20|0]=s[e+20|0],h[_+21|0]=s[e+21|0],h[_+22|0]=s[e+22|0],h[_+23|0]=s[e+23|0],h[_+24|0]=s[e+24|0],h[_+25|0]=s[e+25|0],h[_+26|0]=s[e+26|0],h[_+27|0]=s[e+27|0],h[_+28|0]=s[e+28|0],h[_+29|0]=s[e+29|0],h[_+30|0]=s[e+30|0],t=s[e+31|0],r&&(h[_|0]=s[_|0]&248,t=t|64),h[_+31|0]=t&127,Nr(A,_),jr(_,A),r=-1,(s[_+31|0]&127|(s[_+30|0]|(s[_+29|0]|(s[_+28|0]|(s[_+27|0]|(s[_+26|0]|(s[_+25|0]|(s[_+24|0]|(s[_+23|0]|(s[_+22|0]|(s[_+21|0]|(s[_+20|0]|(s[_+19|0]|(s[_+18|0]|(s[_+17|0]|(s[_+16|0]|(s[_+15|0]|(s[_+14|0]|(s[_+13|0]|(s[_+12|0]|(s[_+11|0]|(s[_+10|0]|(s[_+9|0]|(s[_+8|0]|(s[_+7|0]|(s[_+6|0]|(s[_+5|0]|(s[_+4|0]|(s[_+3|0]|(s[_+2|0]|(s[_+1|0]|s[_|0]^1)))))))))))))))))))))))))))))))-1&256||(r=n1(e,32)?-1:0),F=A+160|0,r}function P1(_,e,r){_=_|0,e=e|0,r=r|0;var A=0,t=0;return A=F-16|0,F=A,h[A+15|0]=0,t=-1,U2[n[9954]](_,e,r)|0||(h[A+15|0]=s[_|0]|s[A+15|0],h[A+15|0]=s[_+1|0]|s[A+15|0],h[A+15|0]=s[_+2|0]|s[A+15|0],h[A+15|0]=s[_+3|0]|s[A+15|0],h[A+15|0]=s[_+4|0]|s[A+15|0],h[A+15|0]=s[_+5|0]|s[A+15|0],h[A+15|0]=s[_+6|0]|s[A+15|0],h[A+15|0]=s[_+7|0]|s[A+15|0],h[A+15|0]=s[_+8|0]|s[A+15|0],h[A+15|0]=s[_+9|0]|s[A+15|0],h[A+15|0]=s[_+10|0]|s[A+15|0],h[A+15|0]=s[_+11|0]|s[A+15|0],h[A+15|0]=s[_+12|0]|s[A+15|0],h[A+15|0]=s[_+13|0]|s[A+15|0],h[A+15|0]=s[_+14|0]|s[A+15|0],h[A+15|0]=s[_+15|0]|s[A+15|0],h[A+15|0]=s[_+16|0]|s[A+15|0],h[A+15|0]=s[_+17|0]|s[A+15|0],h[A+15|0]=s[_+18|0]|s[A+15|0],h[A+15|0]=s[_+19|0]|s[A+15|0],h[A+15|0]=s[_+20|0]|s[A+15|0],h[A+15|0]=s[_+21|0]|s[A+15|0],h[A+15|0]=s[_+22|0]|s[A+15|0],h[A+15|0]=s[_+23|0]|s[A+15|0],h[A+15|0]=s[_+24|0]|s[A+15|0],h[A+15|0]=s[_+25|0]|s[A+15|0],h[A+15|0]=s[_+26|0]|s[A+15|0],h[A+15|0]=s[_+27|0]|s[A+15|0],h[A+15|0]=s[_+28|0]|s[A+15|0],h[A+15|0]=s[_+29|0]|s[A+15|0],h[A+15|0]=s[_+30|0]|s[A+15|0],h[A+15|0]=s[_+31|0]|s[A+15|0],t=(s[A+15|0]<<23)-8388608>>31),F=A+16|0,t|0}function W4(_,e,r,A,t){var i=0,o=0,y=0,u=0,B=0,l=0,j=0;r:{A:{if((A|0)==1|A>>>0>1){n[10172]=22;break A}A=F-128|0,F=A,n[A+64>>2]=0,n[A+56>>2]=0,n[A+60>>2]=0,n[A+48>>2]=0,n[A+52>>2]=0,n[A+40>>2]=0,n[A+44>>2]=0,n[A+32>>2]=0,n[A+36>>2]=0,n[A+24>>2]=0,n[A+28>>2]=0,n[A+16>>2]=0,n[A+20>>2]=0,i=T1(_),n[A+28>>2]=i,n[A+44>>2]=i,n[A+12>>2]=i,o=a1(i),n[A+40>>2]=o,y=a1(i),n[A+24>>2]=y,u=a1(i),n[A+8>>2]=u;n:{e:{if(!u|(!o|!y)||(i=a1(i),!i))break e;if(_=x4(A+8|0,_,t),_){$2(n[A+40>>2]),$2(n[A+24>>2]),$2(n[A+8>>2]),$2(i);break n}u=n[A+28>>2],B=n[A+24>>2],_=n[A+60>>2],l=n[A+52>>2],j=n[A+48>>2],o=n[A+12>>2],t1(i,o),y=a1(o);t:{if(!y){_=-22;break t}n[A+92>>2]=0,n[A+96>>2]=0,n[A+88>>2]=u,n[A+84>>2]=B,n[A+80>>2]=r,n[A+76>>2]=e,n[A+72>>2]=o,n[A+68>>2]=y,n[A+100>>2]=0,n[A+104>>2]=0,n[A+124>>2]=0,n[A+120>>2]=_,n[A+116>>2]=_,n[A+112>>2]=l,n[A+108>>2]=j,_=U6(A+68|0,t),_|!o||b0(i,y,o),Y0(y,o),$2(y)}$2(n[A+40>>2]),$2(n[A+24>>2]),_||(_=mr(i,n[A+8>>2],n[A+12>>2])?-35:0),$2(i),$2(n[A+8>>2]);break n}$2(o),$2(y),$2(u),_=-22}if(F=A+128|0,e=_,!_)break r;if((_|0)!=-35)break A;n[10172]=28}e=-1}return e}function wr(_,e){_=_|0,e=e|0;var r=0;return r=F-16|0,n[r+12>>2]=_,n[r+8>>2]=e,Q2[r+6>>1]=0,Q2[r+6>>1]=M2[r+6>>1]|s[n[r+12>>2]]^s[n[r+8>>2]],Q2[r+6>>1]=M2[r+6>>1]|s[n[r+12>>2]+1|0]^s[n[r+8>>2]+1|0],Q2[r+6>>1]=M2[r+6>>1]|s[n[r+12>>2]+2|0]^s[n[r+8>>2]+2|0],Q2[r+6>>1]=M2[r+6>>1]|s[n[r+12>>2]+3|0]^s[n[r+8>>2]+3|0],Q2[r+6>>1]=M2[r+6>>1]|s[n[r+12>>2]+4|0]^s[n[r+8>>2]+4|0],Q2[r+6>>1]=M2[r+6>>1]|s[n[r+12>>2]+5|0]^s[n[r+8>>2]+5|0],Q2[r+6>>1]=M2[r+6>>1]|s[n[r+12>>2]+6|0]^s[n[r+8>>2]+6|0],Q2[r+6>>1]=M2[r+6>>1]|s[n[r+12>>2]+7|0]^s[n[r+8>>2]+7|0],Q2[r+6>>1]=M2[r+6>>1]|s[n[r+12>>2]+8|0]^s[n[r+8>>2]+8|0],Q2[r+6>>1]=M2[r+6>>1]|s[n[r+12>>2]+9|0]^s[n[r+8>>2]+9|0],Q2[r+6>>1]=M2[r+6>>1]|s[n[r+12>>2]+10|0]^s[n[r+8>>2]+10|0],Q2[r+6>>1]=M2[r+6>>1]|s[n[r+12>>2]+11|0]^s[n[r+8>>2]+11|0],Q2[r+6>>1]=M2[r+6>>1]|s[n[r+12>>2]+12|0]^s[n[r+8>>2]+12|0],Q2[r+6>>1]=M2[r+6>>1]|s[n[r+12>>2]+13|0]^s[n[r+8>>2]+13|0],Q2[r+6>>1]=M2[r+6>>1]|s[n[r+12>>2]+14|0]^s[n[r+8>>2]+14|0],Q2[r+6>>1]=M2[r+6>>1]|s[n[r+12>>2]+15|0]^s[n[r+8>>2]+15|0],Q2[r+6>>1]=M2[r+6>>1],Q2[r+6>>1]=M2[r+6>>1]-1,Q2[r+6>>1]=M2[20608]>>>2^M2[r+6>>1]>>>15,M2[r+6>>1]-1|0}function G2(_,e){var r=0,A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0;i=n[e+32>>2],o=n[e+28>>2],y=n[e+24>>2],u=n[e+20>>2],B=n[e+16>>2],l=n[e+12>>2],r=n[e+4>>2],A=n[e>>2],t=n[e+36>>2],e=n[e+8>>2],A=E0((i+(o+(y+(u+(B+(l+((r+(A+(E0(t,19)+16777216>>>25|0)>>26)>>25)+e>>26)>>25)>>26)>>25)>>26)>>25)>>26)+t>>25,19)+A|0,h[_|0]=A,h[_+2|0]=A>>>16,h[_+1|0]=A>>>8,r=r+(A>>26)|0,h[_+5|0]=r>>>14,h[_+4|0]=r>>>6,h[_+3|0]=A>>>24&3|r<<2,e=e+(r>>25)|0,h[_+8|0]=e>>>13,h[_+7|0]=e>>>5,h[_+6|0]=e<<3|(r&29360128)>>>22,A=(e>>26)+l|0,h[_+11|0]=A>>>11,h[_+10|0]=A>>>3,h[_+9|0]=A<<5|(e&65011712)>>>21,r=(A>>25)+B|0,h[_+15|0]=r>>>18,h[_+14|0]=r>>>10,h[_+13|0]=r>>>2,e=(r>>26)+u|0,h[_+16|0]=e,h[_+12|0]=r<<6|(A&33030144)>>>19,h[_+18|0]=e>>>16,h[_+17|0]=e>>>8,r=(e>>25)+y|0,h[_+21|0]=r>>>15,h[_+20|0]=r>>>7,h[_+19|0]=e>>>24&1|r<<1,e=(r>>26)+o|0,h[_+24|0]=e>>>13,h[_+23|0]=e>>>5,h[_+22|0]=e<<3|(r&58720256)>>>23,r=(e>>25)+i|0,h[_+27|0]=r>>>12,h[_+26|0]=r>>>4,h[_+25|0]=r<<4|(e&31457280)>>>21,e=t+(r>>26)|0,h[_+30|0]=e>>>10,h[_+29|0]=e>>>2,h[_+31|0]=(e&33292288)>>>18,h[_+28|0]=e<<6|(r&66060288)>>>20}function or(_,e,r){_=_|0,e=e|0,r=r|0;var A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0,j=0;o=F-192|0,F=o,r>>>0>=129&&(pr(_),J2(_,e,r,0),k1(_,o),r=64,e=o),pr(_),B2(o- -64|0,54,128);r:{if(!r)break r;if(l=r&3,r>>>0>=4){for(i=r&252;y=o- -64|0,t=y+A|0,h[t|0]=s[t|0]^s[e+A|0],t=A|1,j=t+y|0,h[j|0]=s[j|0]^s[e+t|0],t=A|2,j=t+y|0,h[j|0]=s[j|0]^s[e+t|0],t=y,y=A|3,t=t+y|0,h[t|0]=s[t|0]^s[e+y|0],A=A+4|0,u=u+4|0,(i|0)!=(u|0););if(!l)break r}for(;u=(o- -64|0)+A|0,h[u|0]=s[u|0]^s[e+A|0],A=A+1|0,B=B+1|0,(l|0)!=(B|0););}A=o- -64|0,J2(_,A,128,0),l=_+208|0,pr(l),B2(A,92,128);r:{if(!r)break r;if(y=r&3,B=0,A=0,r>>>0>=4){for(r=r&252,u=0;_=o- -64|0,i=_+A|0,h[i|0]=s[i|0]^s[e+A|0],i=A|1,t=i+_|0,h[t|0]=s[t|0]^s[e+i|0],i=A|2,t=i+_|0,h[t|0]=s[t|0]^s[e+i|0],t=_,_=A|3,i=t+_|0,h[i|0]=s[i|0]^s[_+e|0],A=A+4|0,u=u+4|0,(r|0)!=(u|0););if(!y)break r}for(;_=(o- -64|0)+A|0,h[_|0]=s[_|0]^s[e+A|0],A=A+1|0,B=B+1|0,(y|0)!=(B|0););}return _=o- -64|0,J2(l,_,128,0),Y0(_,128),Y0(o,64),F=o+192|0,0}function p_(_,e){_=_|0,e=e|0;var r=0,A=0,t=0,i=0,o=0,y=0,u=0;return r=e,A=s[r+32|0]|s[r+33|0]<<8|(s[r+34|0]<<16|s[r+35|0]<<24),t=s[r+36|0]|s[r+37|0]<<8|(s[r+38|0]<<16|s[r+39|0]<<24),i=s[r+40|0]|s[r+41|0]<<8|(s[r+42|0]<<16|s[r+43|0]<<24),o=s[r+44|0]|s[r+45|0]<<8|(s[r+46|0]<<16|s[r+47|0]<<24),y=s[r+48|0]|s[r+49|0]<<8|(s[r+50|0]<<16|s[r+51|0]<<24),e=s[r+52|0]|s[r+53|0]<<8|(s[r+54|0]<<16|s[r+55|0]<<24),u=s[r+60|0]|s[r+61|0]<<8|(s[r+62|0]<<16|s[r+63|0]<<24),r=s[r+56|0]|s[r+57|0]<<8|(s[r+58|0]<<16|s[r+59|0]<<24),h[_+24|0]=r,h[_+25|0]=r>>>8,h[_+26|0]=r>>>16,h[_+27|0]=r>>>24,h[_+28|0]=u,h[_+29|0]=u>>>8,h[_+30|0]=u>>>16,h[_+31|0]=u>>>24,h[_+16|0]=y,h[_+17|0]=y>>>8,h[_+18|0]=y>>>16,h[_+19|0]=y>>>24,h[_+20|0]=e,h[_+21|0]=e>>>8,h[_+22|0]=e>>>16,h[_+23|0]=e>>>24,h[_+8|0]=i,h[_+9|0]=i>>>8,h[_+10|0]=i>>>16,h[_+11|0]=i>>>24,h[_+12|0]=o,h[_+13|0]=o>>>8,h[_+14|0]=o>>>16,h[_+15|0]=o>>>24,h[_|0]=A,h[_+1|0]=A>>>8,h[_+2|0]=A>>>16,h[_+3|0]=A>>>24,h[_+4|0]=t,h[_+5|0]=t>>>8,h[_+6|0]=t>>>16,h[_+7|0]=t>>>24,0}function j_(_,e){_=_|0,e=e|0;var r=0,A=0,t=0,i=0,o=0,y=0,u=0;return r=e,A=s[r|0]|s[r+1|0]<<8|(s[r+2|0]<<16|s[r+3|0]<<24),t=s[r+4|0]|s[r+5|0]<<8|(s[r+6|0]<<16|s[r+7|0]<<24),i=s[r+8|0]|s[r+9|0]<<8|(s[r+10|0]<<16|s[r+11|0]<<24),o=s[r+12|0]|s[r+13|0]<<8|(s[r+14|0]<<16|s[r+15|0]<<24),y=s[r+16|0]|s[r+17|0]<<8|(s[r+18|0]<<16|s[r+19|0]<<24),e=s[r+20|0]|s[r+21|0]<<8|(s[r+22|0]<<16|s[r+23|0]<<24),u=s[r+28|0]|s[r+29|0]<<8|(s[r+30|0]<<16|s[r+31|0]<<24),r=s[r+24|0]|s[r+25|0]<<8|(s[r+26|0]<<16|s[r+27|0]<<24),h[_+24|0]=r,h[_+25|0]=r>>>8,h[_+26|0]=r>>>16,h[_+27|0]=r>>>24,h[_+28|0]=u,h[_+29|0]=u>>>8,h[_+30|0]=u>>>16,h[_+31|0]=u>>>24,h[_+16|0]=y,h[_+17|0]=y>>>8,h[_+18|0]=y>>>16,h[_+19|0]=y>>>24,h[_+20|0]=e,h[_+21|0]=e>>>8,h[_+22|0]=e>>>16,h[_+23|0]=e>>>24,h[_+8|0]=i,h[_+9|0]=i>>>8,h[_+10|0]=i>>>16,h[_+11|0]=i>>>24,h[_+12|0]=o,h[_+13|0]=o>>>8,h[_+14|0]=o>>>16,h[_+15|0]=o>>>24,h[_|0]=A,h[_+1|0]=A>>>8,h[_+2|0]=A>>>16,h[_+3|0]=A>>>24,h[_+4|0]=t,h[_+5|0]=t>>>8,h[_+6|0]=t>>>16,h[_+7|0]=t>>>24,0}function k_(_,e,r,A,t,i,o){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0,i=i|0,o=o|0;var y=0;return y=F+-64|0,F=y,r|A&&(n[y+8>>2]=2036477234,n[y+12>>2]=1797285236,n[y>>2]=1634760805,n[y+4>>2]=857760878,n[y+16>>2]=s[o|0]|s[o+1|0]<<8|(s[o+2|0]<<16|s[o+3|0]<<24),n[y+20>>2]=s[o+4|0]|s[o+5|0]<<8|(s[o+6|0]<<16|s[o+7|0]<<24),n[y+24>>2]=s[o+8|0]|s[o+9|0]<<8|(s[o+10|0]<<16|s[o+11|0]<<24),n[y+28>>2]=s[o+12|0]|s[o+13|0]<<8|(s[o+14|0]<<16|s[o+15|0]<<24),n[y+32>>2]=s[o+16|0]|s[o+17|0]<<8|(s[o+18|0]<<16|s[o+19|0]<<24),n[y+36>>2]=s[o+20|0]|s[o+21|0]<<8|(s[o+22|0]<<16|s[o+23|0]<<24),n[y+40>>2]=s[o+24|0]|s[o+25|0]<<8|(s[o+26|0]<<16|s[o+27|0]<<24),o=s[o+28|0]|s[o+29|0]<<8|(s[o+30|0]<<16|s[o+31|0]<<24),n[y+48>>2]=i,n[y+44>>2]=o,n[y+52>>2]=s[t|0]|s[t+1|0]<<8|(s[t+2|0]<<16|s[t+3|0]<<24),n[y+56>>2]=s[t+4|0]|s[t+5|0]<<8|(s[t+6|0]<<16|s[t+7|0]<<24),n[y+60>>2]=s[t+8|0]|s[t+9|0]<<8|(s[t+10|0]<<16|s[t+11|0]<<24),x6(y,e,_,r,A),Y0(y,64)),F=y- -64|0,0}function v_(_,e,r,A,t){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0;var i=0;return i=F+-64|0,F=i,e|r&&(n[i+8>>2]=2036477234,n[i+12>>2]=1797285236,n[i>>2]=1634760805,n[i+4>>2]=857760878,n[i+16>>2]=s[t|0]|s[t+1|0]<<8|(s[t+2|0]<<16|s[t+3|0]<<24),n[i+20>>2]=s[t+4|0]|s[t+5|0]<<8|(s[t+6|0]<<16|s[t+7|0]<<24),n[i+24>>2]=s[t+8|0]|s[t+9|0]<<8|(s[t+10|0]<<16|s[t+11|0]<<24),n[i+28>>2]=s[t+12|0]|s[t+13|0]<<8|(s[t+14|0]<<16|s[t+15|0]<<24),n[i+32>>2]=s[t+16|0]|s[t+17|0]<<8|(s[t+18|0]<<16|s[t+19|0]<<24),n[i+36>>2]=s[t+20|0]|s[t+21|0]<<8|(s[t+22|0]<<16|s[t+23|0]<<24),n[i+40>>2]=s[t+24|0]|s[t+25|0]<<8|(s[t+26|0]<<16|s[t+27|0]<<24),t=s[t+28|0]|s[t+29|0]<<8|(s[t+30|0]<<16|s[t+31|0]<<24),n[i+48>>2]=0,n[i+44>>2]=t,n[i+52>>2]=s[A|0]|s[A+1|0]<<8|(s[A+2|0]<<16|s[A+3|0]<<24),n[i+56>>2]=s[A+4|0]|s[A+5|0]<<8|(s[A+6|0]<<16|s[A+7|0]<<24),n[i+60>>2]=s[A+8|0]|s[A+9|0]<<8|(s[A+10|0]<<16|s[A+11|0]<<24),e&&B2(_,0,e),x6(i,_,_,e,r),Y0(i,64)),F=i- -64|0,0}function f_(_,e,r,A,t){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0;var i=0,o=0,y=0;return o=F,i=o-192&-64,F=i,n[i+64>>2]=(s[t|0]|s[t+1|0]<<8|(s[t+2|0]<<16|s[t+3|0]<<24))&67108863,n[i+68>>2]=(s[t+3|0]|s[t+4|0]<<8|(s[t+5|0]<<16|s[t+6|0]<<24))>>>2&67108611,n[i+72>>2]=(s[t+6|0]|s[t+7|0]<<8|(s[t+8|0]<<16|s[t+9|0]<<24))>>>4&67092735,n[i+76>>2]=(s[t+9|0]|s[t+10|0]<<8|(s[t+11|0]<<16|s[t+12|0]<<24))>>>6&66076671,y=s[t+12|0]|s[t+13|0]<<8|(s[t+14|0]<<16|s[t+15|0]<<24),n[i+84>>2]=0,n[i+88>>2]=0,n[i+92>>2]=0,n[i+96>>2]=0,n[i+100>>2]=0,n[i+80>>2]=y>>>8&1048575,n[i+104>>2]=s[t+16|0]|s[t+17|0]<<8|(s[t+18|0]<<16|s[t+19|0]<<24),n[i+108>>2]=s[t+20|0]|s[t+21|0]<<8|(s[t+22|0]<<16|s[t+23|0]<<24),n[i+112>>2]=s[t+24|0]|s[t+25|0]<<8|(s[t+26|0]<<16|s[t+27|0]<<24),t=s[t+28|0]|s[t+29|0]<<8|(s[t+30|0]<<16|s[t+31|0]<<24),h[i+144|0]=0,n[i+120>>2]=0,n[i+124>>2]=0,n[i+116>>2]=t,t=i- -64|0,GA(t,e,r,A),e=i+48|0,XA(t,e),_=wr(_,e),F=o,_|0}function a_(_,e,r,A,t){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0;var i=0,o=0,y=0,u=0,B=0,l=0;return o=r,r=A,l=o|0,A=F,o=A,i=A-512&-64,F=i,A=-1,y=i- -64|0,u=i+32|0,Wr(y,u)||(A=i+128|0,M1(A,0,0,24),C2(A,y,32,0),C2(A,t,32,0),B=i+96|0,I1(A,B,24),A=Mn(_+32|0,e,l,r,B,t,u),e=n[i+92>>2],r=n[i+88>>2],h[_+24|0]=r,h[_+25|0]=r>>>8,h[_+26|0]=r>>>16,h[_+27|0]=r>>>24,h[_+28|0]=e,h[_+29|0]=e>>>8,h[_+30|0]=e>>>16,h[_+31|0]=e>>>24,e=n[i+84>>2],r=n[i+80>>2],h[_+16|0]=r,h[_+17|0]=r>>>8,h[_+18|0]=r>>>16,h[_+19|0]=r>>>24,h[_+20|0]=e,h[_+21|0]=e>>>8,h[_+22|0]=e>>>16,h[_+23|0]=e>>>24,e=n[i+76>>2],r=n[i+72>>2],h[_+8|0]=r,h[_+9|0]=r>>>8,h[_+10|0]=r>>>16,h[_+11|0]=r>>>24,h[_+12|0]=e,h[_+13|0]=e>>>8,h[_+14|0]=e>>>16,h[_+15|0]=e>>>24,e=n[i+68>>2],r=n[i+64>>2],h[_|0]=r,h[_+1|0]=r>>>8,h[_+2|0]=r>>>16,h[_+3|0]=r>>>24,h[_+4|0]=e,h[_+5|0]=e>>>8,h[_+6|0]=e>>>16,h[_+7|0]=e>>>24,Y0(u,32),Y0(y,32),Y0(B,24)),F=o,A|0}function g_(_,e,r,A,t){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0;var i=0,o=0,y=0,u=0,B=0,l=0;return o=r,r=A,l=o|0,A=F,o=A,i=A-512&-64,F=i,A=-1,y=i- -64|0,u=i+32|0,Wr(y,u)||(A=i+128|0,M1(A,0,0,24),C2(A,y,32,0),C2(A,t,32,0),B=i+96|0,I1(A,B,24),A=Yn(_+32|0,e,l,r,B,t,u),e=n[i+92>>2],r=n[i+88>>2],h[_+24|0]=r,h[_+25|0]=r>>>8,h[_+26|0]=r>>>16,h[_+27|0]=r>>>24,h[_+28|0]=e,h[_+29|0]=e>>>8,h[_+30|0]=e>>>16,h[_+31|0]=e>>>24,e=n[i+84>>2],r=n[i+80>>2],h[_+16|0]=r,h[_+17|0]=r>>>8,h[_+18|0]=r>>>16,h[_+19|0]=r>>>24,h[_+20|0]=e,h[_+21|0]=e>>>8,h[_+22|0]=e>>>16,h[_+23|0]=e>>>24,e=n[i+76>>2],r=n[i+72>>2],h[_+8|0]=r,h[_+9|0]=r>>>8,h[_+10|0]=r>>>16,h[_+11|0]=r>>>24,h[_+12|0]=e,h[_+13|0]=e>>>8,h[_+14|0]=e>>>16,h[_+15|0]=e>>>24,e=n[i+68>>2],r=n[i+64>>2],h[_|0]=r,h[_+1|0]=r>>>8,h[_+2|0]=r>>>16,h[_+3|0]=r>>>24,h[_+4|0]=e,h[_+5|0]=e>>>8,h[_+6|0]=e>>>16,h[_+7|0]=e>>>24,Y0(u,32),Y0(y,32),Y0(B,24)),F=o,A|0}function c_(_,e,r,A,t,i,o,y){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0,i=i|0,o=o|0,y=y|0;var u=0;return u=F+-64|0,F=u,r|A&&(n[u+8>>2]=2036477234,n[u+12>>2]=1797285236,n[u>>2]=1634760805,n[u+4>>2]=857760878,n[u+16>>2]=s[y|0]|s[y+1|0]<<8|(s[y+2|0]<<16|s[y+3|0]<<24),n[u+20>>2]=s[y+4|0]|s[y+5|0]<<8|(s[y+6|0]<<16|s[y+7|0]<<24),n[u+24>>2]=s[y+8|0]|s[y+9|0]<<8|(s[y+10|0]<<16|s[y+11|0]<<24),n[u+28>>2]=s[y+12|0]|s[y+13|0]<<8|(s[y+14|0]<<16|s[y+15|0]<<24),n[u+32>>2]=s[y+16|0]|s[y+17|0]<<8|(s[y+18|0]<<16|s[y+19|0]<<24),n[u+36>>2]=s[y+20|0]|s[y+21|0]<<8|(s[y+22|0]<<16|s[y+23|0]<<24),n[u+40>>2]=s[y+24|0]|s[y+25|0]<<8|(s[y+26|0]<<16|s[y+27|0]<<24),y=s[y+28|0]|s[y+29|0]<<8|(s[y+30|0]<<16|s[y+31|0]<<24),n[u+48>>2]=i,n[u+52>>2]=o,n[u+44>>2]=y,n[u+56>>2]=s[t|0]|s[t+1|0]<<8|(s[t+2|0]<<16|s[t+3|0]<<24),n[u+60>>2]=s[t+4|0]|s[t+5|0]<<8|(s[t+6|0]<<16|s[t+7|0]<<24),x6(u,e,_,r,A),Y0(u,64)),F=u- -64|0,0}function q_(_,e,r,A,t){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0;var i=0;return i=F+-64|0,F=i,e|r&&(n[i+8>>2]=2036477234,n[i+12>>2]=1797285236,n[i>>2]=1634760805,n[i+4>>2]=857760878,n[i+16>>2]=s[t|0]|s[t+1|0]<<8|(s[t+2|0]<<16|s[t+3|0]<<24),n[i+20>>2]=s[t+4|0]|s[t+5|0]<<8|(s[t+6|0]<<16|s[t+7|0]<<24),n[i+24>>2]=s[t+8|0]|s[t+9|0]<<8|(s[t+10|0]<<16|s[t+11|0]<<24),n[i+28>>2]=s[t+12|0]|s[t+13|0]<<8|(s[t+14|0]<<16|s[t+15|0]<<24),n[i+32>>2]=s[t+16|0]|s[t+17|0]<<8|(s[t+18|0]<<16|s[t+19|0]<<24),n[i+36>>2]=s[t+20|0]|s[t+21|0]<<8|(s[t+22|0]<<16|s[t+23|0]<<24),n[i+40>>2]=s[t+24|0]|s[t+25|0]<<8|(s[t+26|0]<<16|s[t+27|0]<<24),t=s[t+28|0]|s[t+29|0]<<8|(s[t+30|0]<<16|s[t+31|0]<<24),n[i+48>>2]=0,n[i+52>>2]=0,n[i+44>>2]=t,n[i+56>>2]=s[A|0]|s[A+1|0]<<8|(s[A+2|0]<<16|s[A+3|0]<<24),n[i+60>>2]=s[A+4|0]|s[A+5|0]<<8|(s[A+6|0]<<16|s[A+7|0]<<24),e&&B2(_,0,e),x6(i,_,_,e,r),Y0(i,64)),F=i- -64|0,0}function P_(_,e,r,A,t){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0;var i=0,o=0,y=0;return o=F,i=o-128&-64,F=i,n[i>>2]=(s[t|0]|s[t+1|0]<<8|(s[t+2|0]<<16|s[t+3|0]<<24))&67108863,n[i+4>>2]=(s[t+3|0]|s[t+4|0]<<8|(s[t+5|0]<<16|s[t+6|0]<<24))>>>2&67108611,n[i+8>>2]=(s[t+6|0]|s[t+7|0]<<8|(s[t+8|0]<<16|s[t+9|0]<<24))>>>4&67092735,n[i+12>>2]=(s[t+9|0]|s[t+10|0]<<8|(s[t+11|0]<<16|s[t+12|0]<<24))>>>6&66076671,y=s[t+12|0]|s[t+13|0]<<8|(s[t+14|0]<<16|s[t+15|0]<<24),n[i+20>>2]=0,n[i+24>>2]=0,n[i+28>>2]=0,n[i+32>>2]=0,n[i+36>>2]=0,n[i+16>>2]=y>>>8&1048575,n[i+40>>2]=s[t+16|0]|s[t+17|0]<<8|(s[t+18|0]<<16|s[t+19|0]<<24),n[i+44>>2]=s[t+20|0]|s[t+21|0]<<8|(s[t+22|0]<<16|s[t+23|0]<<24),n[i+48>>2]=s[t+24|0]|s[t+25|0]<<8|(s[t+26|0]<<16|s[t+27|0]<<24),t=s[t+28|0]|s[t+29|0]<<8|(s[t+30|0]<<16|s[t+31|0]<<24),h[i+80|0]=0,n[i+56>>2]=0,n[i+60>>2]=0,n[i+52>>2]=t,GA(i,e,r,A),XA(i,_),F=o,0}function h6(_,e,r,A,t,i,o){var y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0;y=F-352|0,F=y,j1(y,i,o,0);r:{A:{if(!(!((!t&_-r>>>0<A>>>0|(t|0)!=0)&_>>>0>r>>>0)&(!t&r-_>>>0>=A>>>0|_>>>0>=r>>>0))){A&&b0(_,r,A),n[y+56>>2]=0,n[y+60>>2]=0,n[y+48>>2]=0,n[y+52>>2]=0,n[y+40>>2]=0,n[y+44>>2]=0,n[y+32>>2]=0,n[y+36>>2]=0,o=(t|0)!=0,r=o|!t&A>>>0>=32,u=r?32:A,l=r?0:t,o=o|!t&A>>>0>32,r=_;break A}if(n[y+56>>2]=0,n[y+60>>2]=0,n[y+48>>2]=0,n[y+52>>2]=0,n[y+40>>2]=0,n[y+44>>2]=0,n[y+32>>2]=0,n[y+36>>2]=0,B=(t|0)!=0,o=B|!t&A>>>0>=32,u=o?32:A,l=o?0:t,o=B|!t&A>>>0>32,A|t)break A;v=1;break r}u&&b0(y- -64|0,r,u),v=0}return j=y+32|0,B=l,f=u+32|0,B=f>>>0<32?B+1|0:B,g=B,B=i+16|0,AA(j,j,f,g,B,y),w1(y+96|0,j),!u|v||b0(_,y- -64|0,u),Y0(y+32|0,64),o&&Sr(_+u|0,r+u|0,A-u|0,t-(l+(A>>>0<u>>>0)|0)|0,B,1,0,y),Y0(y,32),r=y+96|0,j2(r,_,A,t),m1(r,e),Y0(r,256),F=y+352|0,0}function u6(_,e,r,A,t,i,o){var y=0,u=0,B=0,l=0,j=0,v=0,f=0,g=0;y=F-352|0,F=y,tr(y,i,o,0);r:{A:{if(!(!((!t&_-r>>>0<A>>>0|(t|0)!=0)&_>>>0>r>>>0)&(!t&r-_>>>0>=A>>>0|_>>>0>=r>>>0))){A&&b0(_,r,A),n[y+56>>2]=0,n[y+60>>2]=0,n[y+48>>2]=0,n[y+52>>2]=0,n[y+40>>2]=0,n[y+44>>2]=0,n[y+32>>2]=0,n[y+36>>2]=0,o=(t|0)!=0,r=o|!t&A>>>0>=32,u=r?32:A,l=r?0:t,o=o|!t&A>>>0>32,r=_;break A}if(n[y+56>>2]=0,n[y+60>>2]=0,n[y+48>>2]=0,n[y+52>>2]=0,n[y+40>>2]=0,n[y+44>>2]=0,n[y+32>>2]=0,n[y+36>>2]=0,B=(t|0)!=0,o=B|!t&A>>>0>=32,u=o?32:A,l=o?0:t,o=B|!t&A>>>0>32,A|t)break A;v=1;break r}u&&b0(y- -64|0,r,u),v=0}return j=y+32|0,B=l,f=u+32|0,B=f>>>0<32?B+1|0:B,g=B,B=i+16|0,iA(j,j,f,g,B,y),w1(y+96|0,j),!u|v||b0(_,y- -64|0,u),Y0(y+32|0,64),o&&f6(_+u|0,r+u|0,A-u|0,t-(l+(A>>>0<u>>>0)|0)|0,B,1,0,y),Y0(y,32),r=y+96|0,j2(r,_,A,t),m1(r,e),Y0(r,256),F=y+352|0,0}function T_(_,e){_=_|0,e=e|0;var r=0;return n[_>>2]=(s[e|0]|s[e+1|0]<<8|(s[e+2|0]<<16|s[e+3|0]<<24))&67108863,n[_+4>>2]=(s[e+3|0]|s[e+4|0]<<8|(s[e+5|0]<<16|s[e+6|0]<<24))>>>2&67108611,n[_+8>>2]=(s[e+6|0]|s[e+7|0]<<8|(s[e+8|0]<<16|s[e+9|0]<<24))>>>4&67092735,n[_+12>>2]=(s[e+9|0]|s[e+10|0]<<8|(s[e+11|0]<<16|s[e+12|0]<<24))>>>6&66076671,r=s[e+12|0]|s[e+13|0]<<8|(s[e+14|0]<<16|s[e+15|0]<<24),n[_+20>>2]=0,n[_+24>>2]=0,n[_+28>>2]=0,n[_+32>>2]=0,n[_+36>>2]=0,n[_+16>>2]=r>>>8&1048575,n[_+40>>2]=s[e+16|0]|s[e+17|0]<<8|(s[e+18|0]<<16|s[e+19|0]<<24),n[_+44>>2]=s[e+20|0]|s[e+21|0]<<8|(s[e+22|0]<<16|s[e+23|0]<<24),n[_+48>>2]=s[e+24|0]|s[e+25|0]<<8|(s[e+26|0]<<16|s[e+27|0]<<24),e=s[e+28|0]|s[e+29|0]<<8|(s[e+30|0]<<16|s[e+31|0]<<24),h[_+80|0]=0,n[_+56>>2]=0,n[_+60>>2]=0,n[_+52>>2]=e,0}function w_(_,e,r){_=_|0,e=e|0,r=r|0;var A=0,t=0;return A=F-320|0,F=A,t=-1,Or(A,r)||(h[_|0]=s[e|0],h[_+1|0]=s[e+1|0],h[_+2|0]=s[e+2|0],h[_+3|0]=s[e+3|0],h[_+4|0]=s[e+4|0],h[_+5|0]=s[e+5|0],h[_+6|0]=s[e+6|0],h[_+7|0]=s[e+7|0],h[_+8|0]=s[e+8|0],h[_+9|0]=s[e+9|0],h[_+10|0]=s[e+10|0],h[_+11|0]=s[e+11|0],h[_+12|0]=s[e+12|0],h[_+13|0]=s[e+13|0],h[_+14|0]=s[e+14|0],h[_+15|0]=s[e+15|0],h[_+16|0]=s[e+16|0],h[_+17|0]=s[e+17|0],h[_+18|0]=s[e+18|0],h[_+19|0]=s[e+19|0],h[_+20|0]=s[e+20|0],h[_+21|0]=s[e+21|0],h[_+22|0]=s[e+22|0],h[_+23|0]=s[e+23|0],h[_+24|0]=s[e+24|0],h[_+25|0]=s[e+25|0],h[_+26|0]=s[e+26|0],h[_+27|0]=s[e+27|0],h[_+28|0]=s[e+28|0],h[_+29|0]=s[e+29|0],h[_+30|0]=s[e+30|0],h[_+31|0]=s[e+31|0]&127,e=A+160|0,v4(e,_,A),y6(_,e),t=n1(_,32)?-1:0),F=A+320|0,t|0}function J4(_,e,r,A,t){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0;var i=0;return i=F-480|0,F=i,or(i,t,32),C1(i,e,r,A),kr(i,i+416|0),e=n[i+444>>2],r=n[i+440>>2],h[_+24|0]=r,h[_+25|0]=r>>>8,h[_+26|0]=r>>>16,h[_+27|0]=r>>>24,h[_+28|0]=e,h[_+29|0]=e>>>8,h[_+30|0]=e>>>16,h[_+31|0]=e>>>24,e=n[i+436>>2],r=n[i+432>>2],h[_+16|0]=r,h[_+17|0]=r>>>8,h[_+18|0]=r>>>16,h[_+19|0]=r>>>24,h[_+20|0]=e,h[_+21|0]=e>>>8,h[_+22|0]=e>>>16,h[_+23|0]=e>>>24,e=n[i+428>>2],r=n[i+424>>2],h[_+8|0]=r,h[_+9|0]=r>>>8,h[_+10|0]=r>>>16,h[_+11|0]=r>>>24,h[_+12|0]=e,h[_+13|0]=e>>>8,h[_+14|0]=e>>>16,h[_+15|0]=e>>>24,e=n[i+420>>2],r=n[i+416>>2],h[_|0]=r,h[_+1|0]=r>>>8,h[_+2|0]=r>>>16,h[_+3|0]=r>>>24,h[_+4|0]=e,h[_+5|0]=e>>>8,h[_+6|0]=e>>>16,h[_+7|0]=e>>>24,F=i+480|0,0}function m_(_,e){_=_|0,e=e|0;var r=0;return r=F-160|0,F=r,h[_|0]=s[e|0],h[_+1|0]=s[e+1|0],h[_+2|0]=s[e+2|0],h[_+3|0]=s[e+3|0],h[_+4|0]=s[e+4|0],h[_+5|0]=s[e+5|0],h[_+6|0]=s[e+6|0],h[_+7|0]=s[e+7|0],h[_+8|0]=s[e+8|0],h[_+9|0]=s[e+9|0],h[_+10|0]=s[e+10|0],h[_+11|0]=s[e+11|0],h[_+12|0]=s[e+12|0],h[_+13|0]=s[e+13|0],h[_+14|0]=s[e+14|0],h[_+15|0]=s[e+15|0],h[_+16|0]=s[e+16|0],h[_+17|0]=s[e+17|0],h[_+18|0]=s[e+18|0],h[_+19|0]=s[e+19|0],h[_+20|0]=s[e+20|0],h[_+21|0]=s[e+21|0],h[_+22|0]=s[e+22|0],h[_+23|0]=s[e+23|0],h[_+24|0]=s[e+24|0],h[_+25|0]=s[e+25|0],h[_+26|0]=s[e+26|0],h[_+27|0]=s[e+27|0],h[_+28|0]=s[e+28|0],h[_+29|0]=s[e+29|0],h[_+30|0]=s[e+30|0],h[_+31|0]=s[e+31|0]&127,Nr(r,_),y6(_,r),_=n1(_,32),F=r+160|0,(_?-1:0)|0}function D_(_,e){_=_|0,e=e|0;var r=0,A=0;return A=F+-64|0,F=A,xr(A,e,32,0),h[A|0]=s[A|0]&248,h[A+31|0]=s[A+31|0]&63|64,e=n[A+20>>2],r=n[A+16>>2],h[_+16|0]=r,h[_+17|0]=r>>>8,h[_+18|0]=r>>>16,h[_+19|0]=r>>>24,h[_+20|0]=e,h[_+21|0]=e>>>8,h[_+22|0]=e>>>16,h[_+23|0]=e>>>24,e=n[A+12>>2],r=n[A+8>>2],h[_+8|0]=r,h[_+9|0]=r>>>8,h[_+10|0]=r>>>16,h[_+11|0]=r>>>24,h[_+12|0]=e,h[_+13|0]=e>>>8,h[_+14|0]=e>>>16,h[_+15|0]=e>>>24,e=n[A+4>>2],r=n[A>>2],h[_|0]=r,h[_+1|0]=r>>>8,h[_+2|0]=r>>>16,h[_+3|0]=r>>>24,h[_+4|0]=e,h[_+5|0]=e>>>8,h[_+6|0]=e>>>16,h[_+7|0]=e>>>24,e=n[A+28>>2],r=n[A+24>>2],h[_+24|0]=r,h[_+25|0]=r>>>8,h[_+26|0]=r>>>16,h[_+27|0]=r>>>24,h[_+28|0]=e,h[_+29|0]=e>>>8,h[_+30|0]=e>>>16,h[_+31|0]=e>>>24,Y0(A,64),F=A- -64|0,0}function RA(_,e,r){_=_|0,e=e|0,r=r|0;var A=0,t=0;return t=F+-64|0,F=t,xr(t,r,32,0),r=n[t+28>>2],A=n[t+24>>2],h[e+24|0]=A,h[e+25|0]=A>>>8,h[e+26|0]=A>>>16,h[e+27|0]=A>>>24,h[e+28|0]=r,h[e+29|0]=r>>>8,h[e+30|0]=r>>>16,h[e+31|0]=r>>>24,r=n[t+20>>2],A=n[t+16>>2],h[e+16|0]=A,h[e+17|0]=A>>>8,h[e+18|0]=A>>>16,h[e+19|0]=A>>>24,h[e+20|0]=r,h[e+21|0]=r>>>8,h[e+22|0]=r>>>16,h[e+23|0]=r>>>24,r=n[t+12>>2],A=n[t+8>>2],h[e+8|0]=A,h[e+9|0]=A>>>8,h[e+10|0]=A>>>16,h[e+11|0]=A>>>24,h[e+12|0]=r,h[e+13|0]=r>>>8,h[e+14|0]=r>>>16,h[e+15|0]=r>>>24,r=n[t+4>>2],A=n[t>>2],h[e|0]=A,h[e+1|0]=A>>>8,h[e+2|0]=A>>>16,h[e+3|0]=A>>>24,h[e+4|0]=r,h[e+5|0]=r>>>8,h[e+6|0]=r>>>16,h[e+7|0]=r>>>24,Y0(t,64),_=a6(_,e),F=t- -64|0,_|0}function M_(_,e,r,A,t,i,o,y,u){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0,i=i|0,o=o|0,y=y|0,u=u|0;var B=0,l=0,j=0;if(B=F,j=B,B=B-192&-32,F=B,T4(u,y,B- -64|0),y=0,o>>>0>63)for(u=64;f4(i+y|0,B- -64|0),y=u,u=u- -64|0,u>>>0<=o>>>0;);if(u=y|32,u>>>0<=o>>>0)for(;V6(i+y|0,B- -64|0),y=u,u=u+32|0,u>>>0<=o>>>0;);if(u=o&31,u&&(l=32-u|0,l&&B2(u|B+32,0,l),u&&b0(B+32|0,i+y|0,u),V6(B+32|0,B- -64|0)),i=32,y=0,t>>>0>=32)for(;P4(_+y|0,A+y|0,B- -64|0),y=i,i=i+32|0,i>>>0<=t>>>0;);i=t&31;r:{if(!i||(u=32-i|0,u&&B2(i|B+32,0,u),u=!i,u||b0(B+32|0,A+y|0,i),P4(B,B+32|0,B- -64|0),u))break r;b0(_+y|0,B,i)}return g4(e,r,o,t,B- -64|0),F=j,0}function S_(_,e){_=_|0,e=e|0;var r=0,A=0;return A=F+-64|0,F=A,kr(_,A),r=n[A+28>>2],_=n[A+24>>2],h[e+24|0]=_,h[e+25|0]=_>>>8,h[e+26|0]=_>>>16,h[e+27|0]=_>>>24,h[e+28|0]=r,h[e+29|0]=r>>>8,h[e+30|0]=r>>>16,h[e+31|0]=r>>>24,r=n[A+20>>2],_=n[A+16>>2],h[e+16|0]=_,h[e+17|0]=_>>>8,h[e+18|0]=_>>>16,h[e+19|0]=_>>>24,h[e+20|0]=r,h[e+21|0]=r>>>8,h[e+22|0]=r>>>16,h[e+23|0]=r>>>24,r=n[A+12>>2],_=n[A+8>>2],h[e+8|0]=_,h[e+9|0]=_>>>8,h[e+10|0]=_>>>16,h[e+11|0]=_>>>24,h[e+12|0]=r,h[e+13|0]=r>>>8,h[e+14|0]=r>>>16,h[e+15|0]=r>>>24,r=n[A+4>>2],_=n[A>>2],h[e|0]=_,h[e+1|0]=_>>>8,h[e+2|0]=_>>>16,h[e+3|0]=_>>>24,h[e+4|0]=r,h[e+5|0]=r>>>8,h[e+6|0]=r>>>16,h[e+7|0]=r>>>24,F=A- -64|0,0}function E4(_,e){var r=0,A=0,t=0,i=0,o=0,y=0;if(e>>>0>4294967168)return 48;r:{if(e>>>0>=4294967168){n[10172]=48,r=0;break r}if(i=e>>>0<11?16:e+11&-8,e=a1(i+76|0),r=0,!e)break r;r=e-8|0;A:{if(!(e&63)){e=r;break A}if(o=e-4|0,y=n[o>>2],e=(e+63&-64)-8|0,e=(e-r>>>0<=15?64:0)+e|0,A=e-r|0,t=(y&-8)-A|0,!(y&3)){r=n[r>>2],n[e+4>>2]=t,n[e>>2]=r+A;break A}n[e+4>>2]=t|n[e+4>>2]&1|2,t=e+t|0,n[t+4>>2]=n[t+4>>2]|1,n[o>>2]=A|n[o>>2]&1|2,t=r+A|0,n[t+4>>2]=n[t+4>>2]|1,H4(r,A)}r=n[e+4>>2];A:{if(!(r&3)||(A=r&-8,A>>>0<=i+16>>>0))break A;n[e+4>>2]=i|r&1|2,r=e+i|0,i=A-i|0,n[r+4>>2]=i|3,A=e+A|0,n[A+4>>2]=n[A+4>>2]|1,H4(r,i)}r=e+8|0}return r?(n[_>>2]=r,0):48}function b4(_,e,r,A,t,i,o,y,u,B,l){if(e&&B2(_,0,e),(r|0)==1|r>>>0>1)return n[10172]=22,-1;r:{if(!r&e>>>0<=15)break r;if(!(!(i|u)&B>>>0<2147483649))return n[10172]=22,-1;if(!((!u&y>>>0>=3|(u|0)!=0)&B>>>0>8191)|(_|0)==(A|0))break r;if((l|0)==1){r=F+-64|0,F=r,_&&t1(_,e),u=B>>>10|0,i=a1(e);A:{if(!i){A=-22;break A}n[r+28>>2]=0,n[r+32>>2]=0,n[r+24>>2]=16,n[r+20>>2]=o,n[r+16>>2]=t,n[r+12>>2]=A,n[r+8>>2]=e,n[r+4>>2]=i,n[r+36>>2]=0,n[r+40>>2]=0,n[r+60>>2]=0,n[r+56>>2]=1,n[r+52>>2]=1,n[r+48>>2]=u,n[r+44>>2]=y,A=U6(r+4|0,1),!e|(A|!_)||b0(_,i,e),Y0(i,e),$2(i)}return F=r- -64|0,A?-1:0}return n[10172]=28,-1}return n[10172]=28,-1}function I_(_,e,r,A){_=_|0,e=e|0,r=r|0,A=A|0;var t=0,i=0;i=_,t=F-32|0,F=t,QA(e,r,A,t+28|0,t+20|0,t+12|0),_=0;r:{A:{n:{for(;;){e:{if(!s[_+i|0]){e=_;break e}if(e=_+1|0,!s[i+e|0]||(e=_+2|0,!s[i+e|0]))break e;if(_=_+3|0,(_|0)!=102)continue;break n}break}if((e|0)!=101)break n;r=t+8|0,A=t+16|0,_=0;e:{if(s[i|0]!=36|s[i+1|0]!=55|s[i+2|0]!=36||(e=Dr(s[i+3|0]),n[t+24>>2]=e?e-1024|0:0,!e)||(e=E6(r,i+4|0),!e))break e;_=E6(A,e)}if(_)break A;n[10172]=28,_=-1;break r}n[10172]=28,_=-1;break r}if(_=1,n[t+28>>2]!=n[t+24>>2]|n[t+12>>2]!=n[t+8>>2])break r;_=n[t+20>>2]!=n[t+16>>2]}return F=t+32|0,_|0}function W6(_,e,r,A,t,i,o){var y=0,u=0,B=0,l=0,j=0,v=0;y=F-96|0,F=y,tr(y,i,o,0),o=y+32|0,u=i+16|0,zA(o,32,0,u,y),i=-1;r:{A:{if(sA(r,e,A,t,o))break A;if(i=0,!_)break r;n:{e:{if(!(!((!t&e-_>>>0<A>>>0|(t|0)!=0)&_>>>0<e>>>0)&(!t&_-e>>>0>=A>>>0|_>>>0<=e>>>0))){A&&b0(_,e,A),e=_;break e}if(!(A|t))break n}if(B=y- -64|0,i=!t&A>>>0>=32|(t|0)!=0,r=i?32:A,o=i?0:t,l=!r,l||b0(B,e,r),i=y+32|0,j=i,i=o,v=r+32|0,i=v>>>0<32?i+1|0:i,iA(j,j,v,i,u,y),l||b0(_,B,r),Y0(y+32|0,64),i=0,!t&A>>>0<33)break A;f6(_+r|0,e+r|0,A-r|0,t-(o+(r>>>0>A>>>0)|0)|0,u,1,0,y);break A}_=y+32|0,iA(_,_,32,0,u,y),Y0(_,64)}Y0(y,32)}return F=y+96|0,i}function rn(_,e,r,A,t,i,o,y,u,B,l){if(e&&B2(_,0,e),(r|0)==1|r>>>0>1)return n[10172]=22,-1;r:{if(!r&e>>>0<=15)break r;if(!(!(i|u)&B>>>0<2147483649))return n[10172]=22,-1;if(!(!!(y|u)&B>>>0>8191)|(_|0)==(A|0))break r;if((l|0)==2){r=F+-64|0,F=r,_&&t1(_,e),u=B>>>10|0,i=a1(e);A:{if(!i){A=-22;break A}n[r+28>>2]=0,n[r+32>>2]=0,n[r+24>>2]=16,n[r+20>>2]=o,n[r+16>>2]=t,n[r+12>>2]=A,n[r+8>>2]=e,n[r+4>>2]=i,n[r+36>>2]=0,n[r+40>>2]=0,n[r+60>>2]=0,n[r+56>>2]=1,n[r+52>>2]=1,n[r+48>>2]=u,n[r+44>>2]=y,A=U6(r+4|0,2),!e|(A|!_)||b0(_,i,e),Y0(i,e),$2(i)}return F=r- -64|0,A?-1:0}return n[10172]=28,-1}return n[10172]=28,-1}function J6(_,e,r,A,t,i,o){var y=0,u=0,B=0,l=0,j=0,v=0;y=F-96|0,F=y,j1(y,i,o,0),o=y+32|0,u=i+16|0,p6(o,32,0,u,y),i=-1;r:{A:{if(sA(r,e,A,t,o))break A;if(i=0,!_)break r;n:{e:{if(!(!((!t&e-_>>>0<A>>>0|(t|0)!=0)&_>>>0<e>>>0)&(!t&_-e>>>0>=A>>>0|_>>>0<=e>>>0))){A&&b0(_,e,A),e=_;break e}if(!(A|t))break n}if(B=y- -64|0,i=!t&A>>>0>=32|(t|0)!=0,r=i?32:A,o=i?0:t,l=!r,l||b0(B,e,r),i=y+32|0,j=i,i=o,v=r+32|0,i=v>>>0<32?i+1|0:i,AA(j,j,v,i,u,y),l||b0(_,B,r),i=0,!t&A>>>0<33)break A;Sr(_+r|0,e+r|0,A-r|0,t-(o+(r>>>0>A>>>0)|0)|0,u,1,0,y);break A}_=y+32|0,AA(_,_,32,0,u,y)}Y0(y,32)}return F=y+96|0,i}function S0(_,e,r){var A=0,t=0,i=0;A=n[e+12>>2],t=n[e+8>>2],i=n[e+4>>2],e=n[e>>2],n[_>>2]=n[r>>2]^(n[(A>>>22&1020)+37408>>2]^(n[(t>>>14&1020)+36384>>2]^(n[(i>>>6&1020)+35360>>2]^n[((e&255)<<2)+34336>>2]))),n[_+4>>2]=n[r+4>>2]^(n[(e>>>22&1020)+37408>>2]^(n[(A>>>14&1020)+36384>>2]^(n[(t>>>6&1020)+35360>>2]^n[((i&255)<<2)+34336>>2]))),n[_+8>>2]=n[r+8>>2]^(n[(i>>>22&1020)+37408>>2]^(n[(e>>>14&1020)+36384>>2]^(n[(A>>>6&1020)+35360>>2]^n[((t&255)<<2)+34336>>2]))),n[_+12>>2]=n[r+12>>2]^(n[(t>>>22&1020)+37408>>2]^(n[(i>>>14&1020)+36384>>2]^(n[(e>>>6&1020)+35360>>2]^n[((A&255)<<2)+34336>>2])))}function An(_,e,r,A,t,i,o,y,u,B){var l=0,j=0;l=F-400|0,F=l,n[l+4>>2]=0,j=l+16|0,j1(j,u,B,0),B=s[u+20|0]|s[u+21|0]<<8|(s[u+22|0]<<16|s[u+23|0]<<24),n[l+8>>2]=s[u+16|0]|s[u+17|0]<<8|(s[u+18|0]<<16|s[u+19|0]<<24),n[l+12>>2]=B,B=l+80|0,vr(B,64,0,l+4|0,j),u=l+144|0,w1(u,B),Y0(B,64),j2(u,i,o,y),j2(u,39776,0-o&15,0),j2(u,e,r,A),j2(u,39776,0-r&15,0),n[l+72>>2]=o,n[l+76>>2]=y,i=l+72|0,j2(u,i,8,0),n[l+72>>2]=r,n[l+76>>2]=A,j2(u,i,8,0),i=l+48|0,m1(u,i),Y0(u,256),u=wr(i,t),Y0(i,16);r:{if(!_)break r;if(u){r&&B2(_,0,r),u=-1;break r}Zn(_,e,r,A,l+4|0,l+16|0),u=0}return Y0(l+16|0,32),F=l+400|0,u}function nn(_,e,r,A,t,i){var o=0,y=0;if(o=F-496|0,F=o,y=o+288|0,lr(y,_,e),H1(y,r,A,0),i)for(_=0,e=0;e=e+1|0,r=p2(e&16711935,8)|p2(e,24)&16711935,h[o+76|0]=r,h[o+77|0]=r>>>8,h[o+78|0]=r>>>16,h[o+79|0]=r>>>24,r=o+80|0,b0(r,o+288|0,208),H1(r,o+76|0,4,0),Zr(r,o+32|0),r=n[o+60>>2],n[o+24>>2]=n[o+56>>2],n[o+28>>2]=r,r=n[o+52>>2],n[o+16>>2]=n[o+48>>2],n[o+20>>2]=r,r=n[o+44>>2],n[o+8>>2]=n[o+40>>2],n[o+12>>2]=r,r=n[o+36>>2],n[o>>2]=n[o+32>>2],n[o+4>>2]=r,r=i-_|0,r=r>>>0>=32?32:r,r&&b0(_+t|0,o,r),_=e<<5,i>>>0>_>>>0;);Y0(o+288|0,208),F=o+496|0}function en(_,e,r,A,t,i){var o=0,y=0,u=0;o=F-32|0,F=o,y=-1,u=r>>>0<32;r:{if(u&!A||(Kn(o,32,0,t,i),sA(e+16|0,e+32|0,r-32|0,A-u|0,o)))break r;UA(_,e,r,A,t,i),h[_+24|0]=0,h[_+25|0]=0,h[_+26|0]=0,h[_+27|0]=0,h[_+28|0]=0,h[_+29|0]=0,h[_+30|0]=0,h[_+31|0]=0,h[_+16|0]=0,h[_+17|0]=0,h[_+18|0]=0,h[_+19|0]=0,h[_+20|0]=0,h[_+21|0]=0,h[_+22|0]=0,h[_+23|0]=0,h[_+8|0]=0,h[_+9|0]=0,h[_+10|0]=0,h[_+11|0]=0,h[_+12|0]=0,h[_+13|0]=0,h[_+14|0]=0,h[_+15|0]=0,h[_|0]=0,h[_+1|0]=0,h[_+2|0]=0,h[_+3|0]=0,h[_+4|0]=0,h[_+5|0]=0,h[_+6|0]=0,h[_+7|0]=0,y=0}return F=o+32|0,y}function C_(_,e,r,A,t){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0;var i=0,o=0,y=0,u=0;i=F-496|0,F=i,h[i+15|0]=1;r:{if(e>>>0<=16320){if(e>>>0>=64)for(o=64;u=o,o=i+80|0,or(o,t,64),y&&C1(o,(_+y|0)+-64|0,64,0),o=i+80|0,C1(o,r,A,0),C1(o,i+15|0,1,0),kr(o,_+y|0),h[i+15|0]=s[i+15|0]+1,y=u,o=y- -64|0,o>>>0<=e>>>0;);e=e&63,e&&(y=i+80|0,or(y,t,64),u&&C1(y,(_+u|0)+-64|0,64,0),t=i+80|0,C1(t,r,A,0),C1(t,i+15|0,1,0),r=i+16|0,kr(t,r),e&&b0(_+u|0,r,e),Y0(i+16|0,64)),Y0(i+80|0,416),_=0;break r}n[10172]=28,_=-1}return F=i+496|0,_|0}function tn(_,e,r,A,t,i,o,y,u,B,l){var j=0,v=0,f=0;return j=F-384|0,F=j,n[j+4>>2]=0,v=j+16|0,j1(v,B,l,0),l=s[B+20|0]|s[B+21|0]<<8|(s[B+22|0]<<16|s[B+23|0]<<24),n[j+8>>2]=s[B+16|0]|s[B+17|0]<<8|(s[B+18|0]<<16|s[B+19|0]<<24),n[j+12>>2]=l,l=j- -64|0,f=j+4|0,vr(l,64,0,f,v),B=j+128|0,w1(B,l),Y0(l,64),j2(B,o,y,u),j2(B,39776,0-y&15,0),Zn(_,A,t,i,f,v),j2(B,_,t,i),j2(B,39776,0-t&15,0),n[j+56>>2]=y,n[j+60>>2]=u,_=j+56|0,j2(B,_,8,0),n[j+56>>2]=t,n[j+60>>2]=i,j2(B,_,8,0),m1(B,e),Y0(B,256),r&&(n[r>>2]=16,n[r+4>>2]=0),Y0(j+16|0,32),F=j+384|0,0}function H_(_,e,r,A,t){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0;var i=0,o=0,y=0,u=0;i=F-256|0,F=i,h[i+15|0]=1;r:{if(e>>>0<=8160){if(e>>>0>=32)for(o=32;u=o,o=i+48|0,lr(o,t,32),y&&H1(o,(_+y|0)-32|0,32,0),o=i+48|0,H1(o,r,A,0),H1(o,i+15|0,1,0),Zr(o,_+y|0),h[i+15|0]=s[i+15|0]+1,y=u,o=y+32|0,o>>>0<=e>>>0;);e=e&31,e&&(y=i+48|0,lr(y,t,32),u&&H1(y,(_+u|0)-32|0,32,0),t=i+48|0,H1(t,r,A,0),H1(t,i+15|0,1,0),r=i+16|0,Zr(t,r),e&&b0(_+u|0,r,e),Y0(i+16|0,32)),Y0(i+48|0,208),_=0;break r}n[10172]=28,_=-1}return F=i+256|0,_|0}function FA(_){var e=0,r=0,A=0;if(!_)return-25;if(!n[_>>2])return-1;if(p1[_+4>>2]<16)return-2;if(!(n[_+8>>2]|!n[_+12>>2]))return-18;if(e=n[_+20>>2],!n[_+16>>2])return e?-19:-6;if(e>>>0<8)return-6;if(!(n[_+24>>2]|!n[_+28>>2]))return-20;if(!(n[_+32>>2]|!n[_+36>>2]))return-21;if(e=n[_+48>>2],!e)return-16;if(e>>>0>16777215)return-17;A=-14,r=n[_+44>>2];r:{if(r>>>0<8)break r;if(r>>>0>2097152)return-15;if(e<<3>>>0>r>>>0)break r;if(!n[_+40>>2])return-12;if(_=n[_+52>>2],!_)return-28;A=_>>>0>16777215?-29:0}return A}function Ur(_,e){var r=0,A=0,t=0;A=e;r:{A:{n:{if(e=e&255,e){if(_&3)for(;;){if(r=s[_|0],!r|(e|0)==(r|0))break r;if(_=_+1|0,!(_&3))break}if(r=n[_>>2],((r|16843008-r)&-2139062144)!=-2139062144)break n;for(t=E0(e,16843009);;){if(e=r^t,((16843008-e|e)&-2139062144)!=-2139062144)break n;if(r=n[_+4>>2],e=_+4|0,_=e,((16843008-r|r)&-2139062144)!=-2139062144)break}break A}_=T1(_)+_|0;break r}e=_}for(;;){if(_=e,r=s[_|0],!r)break r;if(e=_+1|0,(r|0)==(A&255))break}}return s[_|0]==(A&255)?_:0}function _n(_,e,r,A,t){var i=0,o=0,y=0;i=F+-64|0,F=i,y=T1(_);r:{if(!(!r&y>>>0<128)){n[10172]=28,_=-1;break r}n[i+60>>2]=0,n[i+52>>2]=0,n[i+56>>2]=0,n[i+44>>2]=0,n[i+48>>2]=0,r=0;A:{if(!y)break A;r=y}if(o=a1(r),!o|!(s[o-4|0]&3)||Y0(o,r),!o){_=-1;break r}n[i+12>>2]=o,n[i+20>>2]=o,n[i+24>>2]=y,n[i+4>>2]=o,n[i+16>>2]=y,n[i+28>>2]=0,n[i+32>>2]=0,n[i+8>>2]=y,n[i+36>>2]=0,n[i+40>>2]=0;A:{if(x4(i+4|0,_,t)){n[10172]=28,_=-1;break A}_=n[i+44>>2]!=(e|0)|n[i+48>>2]!=(A>>>10|0)}$2(o)}return F=i- -64|0,_}function xr(_,e,r,A){var t=0,i=0;return t=F-208|0,F=t,n[t+72>>2]=0,n[t+76>>2]=0,n[t+64>>2]=0,n[t+68>>2]=0,i=n[9613],n[t>>2]=n[9612],n[t+4>>2]=i,i=n[9615],n[t+8>>2]=n[9614],n[t+12>>2]=i,i=n[9617],n[t+16>>2]=n[9616],n[t+20>>2]=i,i=n[9619],n[t+24>>2]=n[9618],n[t+28>>2]=i,i=n[9621],n[t+32>>2]=n[9620],n[t+36>>2]=i,i=n[9623],n[t+40>>2]=n[9622],n[t+44>>2]=i,i=n[9625],n[t+48>>2]=n[9624],n[t+52>>2]=i,i=n[9627],n[t+56>>2]=n[9626],n[t+60>>2]=i,J2(t,e,r,A),k1(t,_),F=t+208|0,0}function Y_(_,e,r,A,t,i,o,y,u,B){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0,i=i|0,o=o|0,y=y|0,u=u|0,B=B|0;var l=0,j=0;l=0|t,y=y|j,t=F-16|0,F=t,e=e|j,e&&B2(_,0,e),i=r|i;r:{if((i|0)==1|i>>>0>1){n[10172]=22,_=-1;break r}if(!r&e>>>0>=16|r){if(QA(y,u,B,t+12|0,t+8|0,t+4|0),(_|0)==(A|0)){n[10172]=28,_=-1;break r}y=A,A=n[t+12>>2],r=A&31,(A&63)>>>0>=32?(A=1<<r,i=0):(i=1<<r,A=i-1&1>>>32-r),_=Cn(y,l,o,32,i,A,n[t+4>>2],n[t+8>>2],_,e);break r}n[10172]=28,_=-1}return F=t+16|0,_|0}function Q_(_,e,r,A,t){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0;var i=0,o=0,y=0,u=0;o=F-16|0,F=o;r:{A:{if(!A){e=-1;break A}i=A-1|0;n:{if(!(i&A)){y=r^-1,i=i&y;break n}y=r^-1,i=i-((r>>>0)%(A>>>0)|0)|0}if(i>>>0>=y>>>0)break r;if(r=r+i|0,r>>>0>=t>>>0){e=-1;break A}for(_&&(n[_>>2]=r+1),_=e+r|0,e=0,h[o+15|0]=0,r=0;t=_-r|0,y=t,u=s[t|0]&s[o+15|0],t=(r^i)-1>>>24|0,h[y|0]=u|t&128,h[o+15|0]=t|s[o+15|0],r=r+1|0,(A|0)!=(r|0););}return F=o+16|0,e|0}S2(),c2()}function G_(_,e,r){return _=_|0,e=e|0,r=r|0,t1(e,24),j1(_,e,r,0),h[_+32|0]=1,h[_+33|0]=0,h[_+34|0]=0,h[_+35|0]=0,r=s[e+16|0]|s[e+17|0]<<8|(s[e+18|0]<<16|s[e+19|0]<<24),e=s[e+20|0]|s[e+21|0]<<8|(s[e+22|0]<<16|s[e+23|0]<<24),h[_+44|0]=0,h[_+45|0]=0,h[_+46|0]=0,h[_+47|0]=0,h[_+48|0]=0,h[_+49|0]=0,h[_+50|0]=0,h[_+51|0]=0,h[_+36|0]=r,h[_+37|0]=r>>>8,h[_+38|0]=r>>>16,h[_+39|0]=r>>>24,h[_+40|0]=e,h[_+41|0]=e>>>8,h[_+42|0]=e>>>16,h[_+43|0]=e>>>24,0}function d_(_,e,r){return _=_|0,e=e|0,r=r|0,j1(_,e,r,0),h[_+32|0]=1,h[_+33|0]=0,h[_+34|0]=0,h[_+35|0]=0,r=s[e+16|0]|s[e+17|0]<<8|(s[e+18|0]<<16|s[e+19|0]<<24),e=s[e+20|0]|s[e+21|0]<<8|(s[e+22|0]<<16|s[e+23|0]<<24),h[_+44|0]=0,h[_+45|0]=0,h[_+46|0]=0,h[_+47|0]=0,h[_+48|0]=0,h[_+49|0]=0,h[_+50|0]=0,h[_+51|0]=0,h[_+36|0]=r,h[_+37|0]=r>>>8,h[_+38|0]=r>>>16,h[_+39|0]=r>>>24,h[_+40|0]=e,h[_+41|0]=e>>>8,h[_+42|0]=e>>>16,h[_+43|0]=e>>>24,0}function pr(_){_=_|0;var e=0;return n[_+72>>2]=0,n[_+76>>2]=0,e=_- -64|0,n[e>>2]=0,n[e+4>>2]=0,e=n[9613],n[_>>2]=n[9612],n[_+4>>2]=e,e=n[9615],n[_+8>>2]=n[9614],n[_+12>>2]=e,e=n[9617],n[_+16>>2]=n[9616],n[_+20>>2]=e,e=n[9619],n[_+24>>2]=n[9618],n[_+28>>2]=e,e=n[9621],n[_+32>>2]=n[9620],n[_+36>>2]=e,e=n[9623],n[_+40>>2]=n[9622],n[_+44>>2]=e,e=n[9625],n[_+48>>2]=n[9624],n[_+52>>2]=e,e=n[9627],n[_+56>>2]=n[9626],n[_+60>>2]=e,0}function n1(_,e){var r=0,A=0,t=0,i=0,o=0;r=F-16|0,h[r+15|0]=0;r:{if(!e)break r;if(t=e&3,e>>>0>=4){for(o=e&-4;e=_+A|0,h[r+15|0]=s[e|0]|s[r+15|0],h[r+15|0]=s[e+1|0]|s[r+15|0],h[r+15|0]=s[e+2|0]|s[r+15|0],h[r+15|0]=s[e+3|0]|s[r+15|0],A=A+4|0,i=i+4|0,(o|0)!=(i|0););if(!t)break r}for(e=0;h[r+15|0]=s[_+A|0]|s[r+15|0],A=A+1|0,e=e+1|0,(t|0)!=(e|0););}return s[r+15|0]-1>>>31|0}function KA(_){return(((s[_+31|0]^-1)&127|s[_+1|0]&(s[_+2|0]&(s[_+3|0]&(s[_+4|0]&(s[_+5|0]&(s[_+6|0]&(s[_+7|0]&(s[_+8|0]&(s[_+9|0]&(s[_+10|0]&(s[_+11|0]&(s[_+12|0]&(s[_+13|0]&(s[_+14|0]&(s[_+15|0]&(s[_+16|0]&(s[_+17|0]&(s[_+18|0]&(s[_+19|0]&(s[_+20|0]&(s[_+21|0]&(s[_+22|0]&(s[_+23|0]&(s[_+24|0]&(s[_+25|0]&(s[_+26|0]&(s[_+27|0]&(s[_+28|0]&(s[_+30|0]&s[_+29|0]))))))))))))))))))))))))))))^255)-1&236-s[_|0]^-1)>>>8&1}function mr(_,e,r){var A=0,t=0,i=0;A=F-16|0,n[A+12>>2]=_,n[A+8>>2]=e,_=0,h[A+7|0]=0;r:{if(!r)break r;if((r|0)!=1){for(e=r&1,i=r&-2,r=0;h[A+7|0]=s[A+7|0]|s[n[A+12>>2]+_|0]^s[n[A+8>>2]+_|0],t=_|1,h[A+7|0]=s[A+7|0]|s[t+n[A+12>>2]|0]^s[n[A+8>>2]+t|0],_=_+2|0,r=r+2|0,(i|0)!=(r|0););if(!e)break r}h[A+7|0]=s[A+7|0]|s[n[A+12>>2]+_|0]^s[n[A+8>>2]+_|0]}return(s[A+7|0]-1>>>31|0)-1|0}function L_(_,e,r,A){_=_|0,e=e|0,r=r|0,A=A|0;var t=0,i=0,o=0;t=_,o=r,r=0,A=F-128|0,F=A;r:{A:{for(;;){if(!s[r+t|0]){_=r;break A}if(_=r+1|0,!s[t+_|0]||(_=r+2|0,!s[t+_|0]))break A;if(r=r+3|0,(r|0)==102)break}r=-1;break r}if(r=-1,(_|0)!=101||(i=A+4|0,VA(i),_=A+16|0,B2(_,0,102),e=$4(i,e,o,t,_),eA(i),!e))break r;r=mr(_,t,102),Y0(_,102)}return F=A+128|0,r|0}function sn(_,e,r,A,t,i,o,y,u,B){var l=0,j=0,v=0;l=F-352|0,F=l,v=l+32|0,vr(v,64,0,u,B),j=l+96|0,w1(j,v),Y0(v,64),j2(j,i,o,y),j2(j,39744,0-o&15,0),j2(j,e,r,A),j2(j,39744,0-r&15,0),n[l+24>>2]=o,n[l+28>>2]=y,i=l+24|0,j2(j,i,8,0),n[l+24>>2]=r,n[l+28>>2]=A,j2(j,i,8,0),m1(j,l),Y0(j,256),i=wr(l,t),Y0(l,16);r:{if(!_)break r;if(i){r&&B2(_,0,r),i=-1;break r}Mr(_,e,r,A,u,1,B),i=0}return F=l+352|0,i}function l6(_){for(var e=0,r=0,A=0,t=0,i=0,o=0,y=0,u=0,B=0,l=0;r=s[_+A|0],e=A+2688|0,t=r^s[e|0]|t,i=r^s[e+192|0]|i,o=r^s[e+160|0]|o,y=r^s[e+128|0]|y,u=r^s[e+96|0]|u,B=r^s[e- -64|0]|B,l=r^s[e+32|0]|l,A=A+1|0,(A|0)!=31;);return _=s[_+31|0]&127,e=_^127,(((e|i)&255)-1|(((e|o)&255)-1|(((e|y)&255)-1|(((_^122|u)&255)-1|(((_^5|B)&255)-1|(((_|l)&255)-1|((_|t)&255)-1))))))>>>8&1}function on(_,e,r,A,t,i){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0,i=i|0;var o=0,y=0;r:A:{n:{e:{if(!t&A>>>0<64||(t=t-1|0,y=t+1|0,o=t,t=A+-64|0,A=t>>>0<4294967232?y:o,!A&t>>>0>4294967231|A))break e;if(o=r,r=r- -64|0,!wA(o,r,t,A,i,0))break n;if(!_|!t)break e;B2(_,0,t)}if(A=-1,!e)break A;n[e>>2]=0,n[e+4>>2]=0,A=-1;break r}if(e&&(n[e>>2]=t,n[e+4>>2]=A),A=0,!_|!t)break A;b0(_,r,t)}return A|0}function D(_,e,r){var A=0,t=0,i=0,o=0;return o=r&63,i=o,t=i&31,i>>>0>=32?i=-1>>>t|0:(A=-1>>>t|0,i=A|(1<<t)-1<<32-t),i=i&_,A=e&A,t=o&31,o>>>0>=32?(A=i<<t,o=0):(A=(1<<t)-1&i>>>32-t|A<<t,o=i<<t),i=A,t=0-r&63,A=t&31,t>>>0>=32?(A=-1<<A,r=0):(r=-1<<A,A=r|(1<<A)-1&-1>>>32-A),_=r&_,e=e&A,A=t&31,t>>>0>=32?(r=0,_=e>>>A|0):(r=e>>>A|0,_=((1<<A)-1&e)<<32-A|_>>>A),_=_|o,p=r|i,_}function yn(_,e,r,A,t,i){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0,i=i|0;var o=0,y=0;o=F-32|0,F=o,y=s[t|0]|s[t+1|0]<<8|(s[t+2|0]<<16|s[t+3|0]<<24),t=s[t+4|0]|s[t+5|0]<<8|(s[t+6|0]<<16|s[t+7|0]<<24),n[o+24>>2]=0,n[o+28>>2]=0,n[o+16>>2]=y,n[o+20>>2]=t,n[o+8>>2]=0,n[o+12>>2]=0,n[o>>2]=r,n[o+4>>2]=A;r:{if(e-65>>>0<=4294967246){n[10172]=28,_=-1;break r}_=C4(_,e,0,0,0,i,32,o,o+16|0)}return F=o+32|0,_|0}function Bn(_,e,r,A,t){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0;var i=0,o=0;return i=F-512|0,F=i,o=i+32|0,or(o,t,32),C1(o,e,r,A),kr(o,i+448|0),e=n[i+476>>2],n[i+24>>2]=n[i+472>>2],n[i+28>>2]=e,e=n[i+468>>2],n[i+16>>2]=n[i+464>>2],n[i+20>>2]=e,e=n[i+460>>2],n[i+8>>2]=n[i+456>>2],n[i+12>>2]=e,e=n[i+452>>2],n[i>>2]=n[i+448>>2],n[i+4>>2]=e,e=Jr(_,i),r=mr(i,_,32),F=i+512|0,((_|0)==(i|0)?-1:e)|r}function hn(_,e,r,A,t,i,o,y,u,B){var l=0,j=0,v=0;l=F-352|0,F=l,v=l+32|0,p6(v,64,0,u,B),j=l+96|0,w1(j,v),Y0(v,64),j2(j,i,o,y),n[l+24>>2]=o,n[l+28>>2]=y,i=l+24|0,j2(j,i,8,0),j2(j,e,r,A),n[l+24>>2]=r,n[l+28>>2]=A,j2(j,i,8,0),m1(j,l),Y0(j,256),i=wr(l,t),Y0(l,16);r:{if(!_)break r;if(i){r&&B2(_,0,r),i=-1;break r}Sr(_,e,r,A,u,1,0,B),i=0}return F=l+352|0,i}function un(_,e,r,A,t,i,o,y,u,B,l){var j=0,v=0,f=0;return j=F-336|0,F=j,f=j+16|0,vr(f,64,0,B,l),v=j+80|0,w1(v,f),Y0(f,64),j2(v,o,y,u),j2(v,39744,0-y&15,0),Mr(_,A,t,i,B,1,l),j2(v,_,t,i),j2(v,39744,0-t&15,0),n[j+8>>2]=y,n[j+12>>2]=u,_=j+8|0,j2(v,_,8,0),n[j+8>>2]=t,n[j+12>>2]=i,j2(v,_,8,0),m1(v,e),Y0(v,256),r&&(n[r>>2]=16,n[r+4>>2]=0),F=j+336|0,0}function ln(_,e,r){var A=0;for(A=F-16|0,n[A+12>>2]=_,n[A+8>>2]=e,_=0,Q2[A+6>>1]=0;Q2[A+6>>1]=M2[A+6>>1]|s[n[A+12>>2]+_|0]^s[n[A+8>>2]+_|0],e=_|1,Q2[A+6>>1]=M2[A+6>>1]|s[e+n[A+12>>2]|0]^s[e+n[A+8>>2]|0],_=_+2|0,(r|0)!=(_|0););return Q2[A+6>>1]=M2[A+6>>1],Q2[A+6>>1]=M2[A+6>>1]-1,Q2[A+6>>1]=M2[20608]>>>2^M2[A+6>>1]>>>15,M2[A+6>>1]-1|0}function X_(_,e,r,A){_=_|0,e=e|0,r=r|0,A=A|0;var t=0,i=0,o=0,y=0,u=0,B=0;if(t=F-16|0,n[t+12>>2]=0,A-1>>>0<r>>>0){for(i=r-1|0,B=i+e|0,r=0,e=0;o=s[B-r|0],u=((o^128)-1&(n[t+12>>2]-1&y-1))>>>8&1,n[t+12>>2]=n[t+12>>2]|0-u&r,e=e|u,y=y|o,r=r+1|0,(A|0)!=(r|0););n[_>>2]=i-n[t+12>>2],_=(e&255)-1|0}else _=-1;return _|0}function R_(_,e,r,A){_=_|0,e=e|0,r=r|0,A=A|0;var t=0,i=0,o=0;if(!(A>>>0>2147483646|A<<1>>>0>=e>>>0)){if(e=0,A){for(;t=(e<<1)+_|0,o=s[e+r|0],i=o&15,h[t+1|0]=((i<<8)+(i+65526&55552)|0)+22272>>>8,i=t,t=o>>>4|0,h[i|0]=((t+65526>>>8&217)+t|0)+87,e=e+1|0,(A|0)!=(e|0););e=A<<1}else e=0;return h[e+_|0]=0,_|0}S2(),c2()}function NA(_,e){var r=0,A=0,t=0,i=0,o=0,y=0;i=s[_|0];r:{if((i-58&255)>>>0<246)break r;for(r=i,A=_;;){if(o=A,t>>>0>429496729||(r=(r&255)-48|0,t=E0(t,10),r>>>0>(t^-1)>>>0))break r;if(t=t+r|0,A=A+1|0,r=s[A|0],!((r-58&255)>>>0>245))break}if((i|0)==48&(_|0)!=(o|0)|(_|0)==(A|0))break r;n[e>>2]=t,y=A}return y}function pn(_,e,r,A,t,i){_=_|0,e=e|0,r=r|0,A=A|0,t=t|0,i=i|0;var o=0,y=0;o=F-16|0,F=o,y=_- -64|0,A&&b0(y,r,A),r=0,PA(_,o+8|0,y,A,t,i,0);r:{if(n[o+12>>2]|n[o+8>>2]!=64){e&&(n[e>>2]=0,n[e+4>>2]=0),e=A- -64|0,e&&B2(_,0,e),r=-1;break r}if(!e)break r;n[e>>2]=A- -64,n[e+4>>2]=t-((A>>>0<4294967232)-1|0)}return F=o+16|0,r|0}function Dr(_){var e=0,r=0,A=0,t=0;e=65,r=1024,A=_&255;r:{A:{if((A|0)!=s[1024])for(A=E0(A,16843009);;){if(t=A^n[r>>2],((t|16843008-t)&-2139062144)!=-2139062144)break A;if(r=r+4|0,e=e-4|0,!(e>>>0>3))break}if(!e)break r}for(_=_&255;;){if((_|0)==s[r|0])return r;if(r=r+1|0,e=e-1|0,!e)break}}return 0}function F_(_,e,r,A){_=_|0,e=e|0,r=r|0,A=A|0;var t=0,i=0;return t=F-112|0,F=t,n[t+40>>2]=0,n[t+44>>2]=0,i=n[9833],n[t+8>>2]=n[9832],n[t+12>>2]=i,i=n[9835],n[t+16>>2]=n[9834],n[t+20>>2]=i,i=n[9837],n[t+24>>2]=n[9836],n[t+28>>2]=i,i=n[9839],n[t+32>>2]=n[9838],n[t+36>>2]=i,i=t+8|0,S1(i,e,r,A),ir(i,_),F=t+112|0,0}function jn(_,e,r,A,t,i,o,y,u,B,l){var j=0,v=0,f=0;return j=F-336|0,F=j,f=j+16|0,p6(f,64,0,B,l),v=j+80|0,w1(v,f),Y0(f,64),j2(v,o,y,u),n[j+8>>2]=y,n[j+12>>2]=u,o=j+8|0,j2(v,o,8,0),Sr(_,A,t,i,B,1,0,l),j2(v,_,t,i),n[j+8>>2]=t,n[j+12>>2]=i,j2(v,o,8,0),m1(v,e),Y0(v,256),r&&(n[r>>2]=16,n[r+4>>2]=0),F=j+336|0,0}function kn(_,e,r,A,t,i){return!A&r>>>0>=32|A?(UA(_,e,r,A,t,i),ie(_+16|0,_+32|0,r-32|0,A-(r>>>0<32)|0,_),h[_+8|0]=0,h[_+9|0]=0,h[_+10|0]=0,h[_+11|0]=0,h[_+12|0]=0,h[_+13|0]=0,h[_+14|0]=0,h[_+15|0]=0,h[_|0]=0,h[_+1|0]=0,h[_+2|0]=0,h[_+3|0]=0,h[_+4|0]=0,h[_+5|0]=0,h[_+6|0]=0,h[_+7|0]=0,_=0):_=-1,_}function T1(_){var e=0,r=0,A=0;r:{A:{if(e=_,!(e&3))break A;if(!s[e|0])return 0;for(;;){if(e=e+1|0,!(e&3))break A;if(!s[e|0])break}break r}for(;r=e,e=e+4|0,A=n[r>>2],((A|16843008-A)&-2139062144)==-2139062144;);for(;e=r,r=e+1|0,!!s[e|0];);}return e-_|0}function E6(_,e){var r=0,A=0,t=0,i=0,o=0;r:{if(r=Dr(s[e|0]),!r||(A=Dr(s[e+1|0]),!A)||(t=Dr(s[e+2|0]),!t)||(i=Dr(s[e+3|0]),!i)||(o=Dr(s[e+4|0]),!o))break r;return 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P=[];a0(a);var k=new k0(0|L._crypto_aead_aegis128l_keybytes()),c=k.address;P.push(c),L._crypto_aead_aegis128l_keygen(c);var w=w0(k,a);return p0(P),w}function F3(a,P,k,c,w,Q){var S=[];a0(Q);var R=null;a!=null&&(R=Z(a=W(S,a,"secret_nonce")),a.length,S.push(R)),P=W(S,P,"ciphertext");var V,E=L._crypto_aead_aegis256_abytes(),e0=P.length;e0<E&&i0(S,"ciphertext is too short"),V=Z(P),S.push(V);var y0=null,h0=0;k!=null&&(y0=Z(k=W(S,k,"additional_data")),h0=k.length,S.push(y0)),c=W(S,c,"public_nonce");var g0,D0=0|L._crypto_aead_aegis256_npubbytes();c.length!==D0&&i0(S,"invalid public_nonce length"),g0=Z(c),S.push(g0),w=W(S,w,"key");var Q0,X0=0|L._crypto_aead_aegis256_keybytes();w.length!==X0&&i0(S,"invalid key length"),Q0=Z(w),S.push(Q0);var R0=new k0(e0-L._crypto_aead_aegis256_abytes()|0),W0=R0.address;if(S.push(W0),L._crypto_aead_aegis256_decrypt(W0,null,R,V,e0,0,y0,h0,0,g0,Q0)===0){var _2=w0(R0,Q);return p0(S),_2}H0(S,"ciphertext cannot be decrypted using that key")}function K3(a,P,k,c,w,Q,S){var R=[];a0(S);var V=null;a!=null&&(V=Z(a=W(R,a,"secret_nonce")),a.length,R.push(V));var E=Z(P=W(R,P,"ciphertext")),e0=P.length;R.push(E),k=W(R,k,"mac");var y0,h0=0|L._crypto_box_macbytes();k.length!==h0&&i0(R,"invalid mac length"),y0=Z(k),R.push(y0);var g0=null,D0=0;c!=null&&(g0=Z(c=W(R,c,"additional_data")),D0=c.length,R.push(g0)),w=W(R,w,"public_nonce");var Q0,X0=0|L._crypto_aead_aegis256_npubbytes();w.length!==X0&&i0(R,"invalid public_nonce length"),Q0=Z(w),R.push(Q0),Q=W(R,Q,"key");var R0,W0=0|L._crypto_aead_aegis256_keybytes();Q.length!==W0&&i0(R,"invalid key length"),R0=Z(Q),R.push(R0);var _2=new k0(0|e0),T2=_2.address;if(R.push(T2),L._crypto_aead_aegis256_decrypt_detached(T2,V,E,e0,0,y0,g0,D0,0,Q0,R0)===0){var s1=w0(_2,S);return p0(R),s1}H0(R,"ciphertext cannot be decrypted using that key")}function N3(a,P,k,c,w,Q){var S=[];a0(Q);var R=Z(a=W(S,a,"message")),V=a.length;S.push(R);var E=null,e0=0;P!=null&&(E=Z(P=W(S,P,"additional_data")),e0=P.length,S.push(E));var y0=null;k!=null&&(y0=Z(k=W(S,k,"secret_nonce")),k.length,S.push(y0)),c=W(S,c,"public_nonce");var h0,g0=0|L._crypto_aead_aegis256_npubbytes();c.length!==g0&&i0(S,"invalid public_nonce length"),h0=Z(c),S.push(h0),w=W(S,w,"key");var D0,Q0=0|L._crypto_aead_aegis256_keybytes();w.length!==Q0&&i0(S,"invalid key length"),D0=Z(w),S.push(D0);var X0=new k0(V+L._crypto_aead_aegis256_abytes()|0),R0=X0.address;if(S.push(R0),L._crypto_aead_aegis256_encrypt(R0,null,R,V,0,E,e0,0,y0,h0,D0)===0){var W0=w0(X0,Q);return p0(S),W0}H0(S,"invalid usage")}function O3(a,P,k,c,w,Q){var S=[];a0(Q);var R=Z(a=W(S,a,"message")),V=a.length;S.push(R);var E=null,e0=0;P!=null&&(E=Z(P=W(S,P,"additional_data")),e0=P.length,S.push(E));var y0=null;k!=null&&(y0=Z(k=W(S,k,"secret_nonce")),k.length,S.push(y0)),c=W(S,c,"public_nonce");var h0,g0=0|L._crypto_aead_aegis256_npubbytes();c.length!==g0&&i0(S,"invalid public_nonce 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g0,D0=0|L._crypto_aead_chacha20poly1305_npubbytes();c.length!==D0&&i0(S,"invalid public_nonce length"),g0=Z(c),S.push(g0),w=W(S,w,"key");var Q0,X0=0|L._crypto_aead_chacha20poly1305_keybytes();w.length!==X0&&i0(S,"invalid key length"),Q0=Z(w),S.push(Q0);var R0=new k0(e0-L._crypto_aead_chacha20poly1305_abytes()|0),W0=R0.address;if(S.push(W0),L._crypto_aead_chacha20poly1305_decrypt(W0,null,R,V,e0,0,y0,h0,0,g0,Q0)===0){var _2=w0(R0,Q);return p0(S),_2}H0(S,"ciphertext cannot be decrypted using that key")}function V3(a,P,k,c,w,Q,S){var R=[];a0(S);var V=null;a!=null&&(V=Z(a=W(R,a,"secret_nonce")),a.length,R.push(V));var E=Z(P=W(R,P,"ciphertext")),e0=P.length;R.push(E),k=W(R,k,"mac");var y0,h0=0|L._crypto_box_macbytes();k.length!==h0&&i0(R,"invalid mac length"),y0=Z(k),R.push(y0);var g0=null,D0=0;c!=null&&(g0=Z(c=W(R,c,"additional_data")),D0=c.length,R.push(g0)),w=W(R,w,"public_nonce");var Q0,X0=0|L._crypto_aead_chacha20poly1305_npubbytes();w.length!==X0&&i0(R,"invalid public_nonce 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k0(V+L._crypto_aead_chacha20poly1305_abytes()|0),R0=X0.address;if(S.push(R0),L._crypto_aead_chacha20poly1305_encrypt(R0,null,R,V,0,E,e0,0,y0,h0,D0)===0){var W0=w0(X0,Q);return p0(S),W0}H0(S,"invalid usage")}function $3(a,P,k,c,w,Q){var S=[];a0(Q);var R=Z(a=W(S,a,"message")),V=a.length;S.push(R);var E=null,e0=0;P!=null&&(E=Z(P=W(S,P,"additional_data")),e0=P.length,S.push(E));var y0=null;k!=null&&(y0=Z(k=W(S,k,"secret_nonce")),k.length,S.push(y0)),c=W(S,c,"public_nonce");var h0,g0=0|L._crypto_aead_chacha20poly1305_npubbytes();c.length!==g0&&i0(S,"invalid public_nonce length"),h0=Z(c),S.push(h0),w=W(S,w,"key");var D0,Q0=0|L._crypto_aead_chacha20poly1305_keybytes();w.length!==Q0&&i0(S,"invalid key length"),D0=Z(w),S.push(D0);var X0=new k0(0|V),R0=X0.address;S.push(R0);var W0=new k0(0|L._crypto_aead_chacha20poly1305_abytes()),_2=W0.address;if(S.push(_2),L._crypto_aead_chacha20poly1305_encrypt_detached(R0,_2,null,R,V,0,E,e0,0,y0,h0,D0)===0){var T2=w0({ciphertext:X0,mac:W0},Q);return p0(S),T2}H0(S,"invalid usage")}function Z3(a,P,k,c,w,Q){var S=[];a0(Q);var R=null;a!=null&&(R=Z(a=W(S,a,"secret_nonce")),a.length,S.push(R)),P=W(S,P,"ciphertext");var V,E=L._crypto_aead_chacha20poly1305_ietf_abytes(),e0=P.length;e0<E&&i0(S,"ciphertext is too short"),V=Z(P),S.push(V);var y0=null,h0=0;k!=null&&(y0=Z(k=W(S,k,"additional_data")),h0=k.length,S.push(y0)),c=W(S,c,"public_nonce");var g0,D0=0|L._crypto_aead_chacha20poly1305_ietf_npubbytes();c.length!==D0&&i0(S,"invalid public_nonce length"),g0=Z(c),S.push(g0),w=W(S,w,"key");var Q0,X0=0|L._crypto_aead_chacha20poly1305_ietf_keybytes();w.length!==X0&&i0(S,"invalid key length"),Q0=Z(w),S.push(Q0);var R0=new k0(e0-L._crypto_aead_chacha20poly1305_ietf_abytes()|0),W0=R0.address;if(S.push(W0),L._crypto_aead_chacha20poly1305_ietf_decrypt(W0,null,R,V,e0,0,y0,h0,0,g0,Q0)===0){var _2=w0(R0,Q);return p0(S),_2}H0(S,"ciphertext cannot be decrypted using that key")}function W3(a,P,k,c,w,Q,S){var R=[];a0(S);var V=null;a!=null&&(V=Z(a=W(R,a,"secret_nonce")),a.length,R.push(V));var E=Z(P=W(R,P,"ciphertext")),e0=P.length;R.push(E),k=W(R,k,"mac");var y0,h0=0|L._crypto_box_macbytes();k.length!==h0&&i0(R,"invalid mac length"),y0=Z(k),R.push(y0);var g0=null,D0=0;c!=null&&(g0=Z(c=W(R,c,"additional_data")),D0=c.length,R.push(g0)),w=W(R,w,"public_nonce");var Q0,X0=0|L._crypto_aead_chacha20poly1305_ietf_npubbytes();w.length!==X0&&i0(R,"invalid public_nonce length"),Q0=Z(w),R.push(Q0),Q=W(R,Q,"key");var R0,W0=0|L._crypto_aead_chacha20poly1305_ietf_keybytes();Q.length!==W0&&i0(R,"invalid key length"),R0=Z(Q),R.push(R0);var _2=new k0(0|e0),T2=_2.address;if(R.push(T2),L._crypto_aead_chacha20poly1305_ietf_decrypt_detached(T2,V,E,e0,0,y0,g0,D0,0,Q0,R0)===0){var s1=w0(_2,S);return p0(R),s1}H0(R,"ciphertext cannot be decrypted using that key")}function J3(a,P,k,c,w,Q){var S=[];a0(Q);var R=Z(a=W(S,a,"message")),V=a.length;S.push(R);var E=null,e0=0;P!=null&&(E=Z(P=W(S,P,"additional_data")),e0=P.length,S.push(E));var y0=null;k!=null&&(y0=Z(k=W(S,k,"secret_nonce")),k.length,S.push(y0)),c=W(S,c,"public_nonce");var h0,g0=0|L._crypto_aead_chacha20poly1305_ietf_npubbytes();c.length!==g0&&i0(S,"invalid public_nonce length"),h0=Z(c),S.push(h0),w=W(S,w,"key");var D0,Q0=0|L._crypto_aead_chacha20poly1305_ietf_keybytes();w.length!==Q0&&i0(S,"invalid key length"),D0=Z(w),S.push(D0);var X0=new k0(V+L._crypto_aead_chacha20poly1305_ietf_abytes()|0),R0=X0.address;if(S.push(R0),L._crypto_aead_chacha20poly1305_ietf_encrypt(R0,null,R,V,0,E,e0,0,y0,h0,D0)===0){var W0=w0(X0,Q);return p0(S),W0}H0(S,"invalid usage")}function E3(a,P,k,c,w,Q){var S=[];a0(Q);var R=Z(a=W(S,a,"message")),V=a.length;S.push(R);var E=null,e0=0;P!=null&&(E=Z(P=W(S,P,"additional_data")),e0=P.length,S.push(E));var y0=null;k!=null&&(y0=Z(k=W(S,k,"secret_nonce")),k.length,S.push(y0)),c=W(S,c,"public_nonce");var h0,g0=0|L._crypto_aead_chacha20poly1305_ietf_npubbytes();c.length!==g0&&i0(S,"invalid public_nonce length"),h0=Z(c),S.push(h0),w=W(S,w,"key");var D0,Q0=0|L._crypto_aead_chacha20poly1305_ietf_keybytes();w.length!==Q0&&i0(S,"invalid key length"),D0=Z(w),S.push(D0);var X0=new k0(0|V),R0=X0.address;S.push(R0);var W0=new k0(0|L._crypto_aead_chacha20poly1305_ietf_abytes()),_2=W0.address;if(S.push(_2),L._crypto_aead_chacha20poly1305_ietf_encrypt_detached(R0,_2,null,R,V,0,E,e0,0,y0,h0,D0)===0){var T2=w0({ciphertext:X0,mac:W0},Q);return p0(S),T2}H0(S,"invalid usage")}function b3(a){var P=[];a0(a);var k=new k0(0|L._crypto_aead_chacha20poly1305_ietf_keybytes()),c=k.address;P.push(c),L._crypto_aead_chacha20poly1305_ietf_keygen(c);var w=w0(k,a);return p0(P),w}function ri(a){var P=[];a0(a);var k=new k0(0|L._crypto_aead_chacha20poly1305_keybytes()),c=k.address;P.push(c),L._crypto_aead_chacha20poly1305_keygen(c);var w=w0(k,a);return p0(P),w}function Ai(a,P,k,c,w,Q){var S=[];a0(Q);var R=null;a!=null&&(R=Z(a=W(S,a,"secret_nonce")),a.length,S.push(R)),P=W(S,P,"ciphertext");var V,E=L._crypto_aead_xchacha20poly1305_ietf_abytes(),e0=P.length;e0<E&&i0(S,"ciphertext is too short"),V=Z(P),S.push(V);var y0=null,h0=0;k!=null&&(y0=Z(k=W(S,k,"additional_data")),h0=k.length,S.push(y0)),c=W(S,c,"public_nonce");var g0,D0=0|L._crypto_aead_xchacha20poly1305_ietf_npubbytes();c.length!==D0&&i0(S,"invalid public_nonce length"),g0=Z(c),S.push(g0),w=W(S,w,"key");var Q0,X0=0|L._crypto_aead_xchacha20poly1305_ietf_keybytes();w.length!==X0&&i0(S,"invalid key length"),Q0=Z(w),S.push(Q0);var R0=new k0(e0-L._crypto_aead_xchacha20poly1305_ietf_abytes()|0),W0=R0.address;if(S.push(W0),L._crypto_aead_xchacha20poly1305_ietf_decrypt(W0,null,R,V,e0,0,y0,h0,0,g0,Q0)===0){var _2=w0(R0,Q);return p0(S),_2}H0(S,"ciphertext cannot be decrypted using that key")}function ni(a,P,k,c,w,Q,S){var R=[];a0(S);var V=null;a!=null&&(V=Z(a=W(R,a,"secret_nonce")),a.length,R.push(V));var E=Z(P=W(R,P,"ciphertext")),e0=P.length;R.push(E),k=W(R,k,"mac");var y0,h0=0|L._crypto_box_macbytes();k.length!==h0&&i0(R,"invalid mac length"),y0=Z(k),R.push(y0);var g0=null,D0=0;c!=null&&(g0=Z(c=W(R,c,"additional_data")),D0=c.length,R.push(g0)),w=W(R,w,"public_nonce");var Q0,X0=0|L._crypto_aead_xchacha20poly1305_ietf_npubbytes();w.length!==X0&&i0(R,"invalid public_nonce length"),Q0=Z(w),R.push(Q0),Q=W(R,Q,"key");var R0,W0=0|L._crypto_aead_xchacha20poly1305_ietf_keybytes();Q.length!==W0&&i0(R,"invalid key length"),R0=Z(Q),R.push(R0);var _2=new k0(0|e0),T2=_2.address;if(R.push(T2),L._crypto_aead_xchacha20poly1305_ietf_decrypt_detached(T2,V,E,e0,0,y0,g0,D0,0,Q0,R0)===0){var s1=w0(_2,S);return p0(R),s1}H0(R,"ciphertext cannot be decrypted using that key")}function ei(a,P,k,c,w,Q){var S=[];a0(Q);var R=Z(a=W(S,a,"message")),V=a.length;S.push(R);var E=null,e0=0;P!=null&&(E=Z(P=W(S,P,"additional_data")),e0=P.length,S.push(E));var 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p0(k),S}H0(k,"invalid usage")}function qi(a){var P=[];a0(a);var k=new k0(0|L._crypto_auth_hmacsha512_keybytes()),c=k.address;P.push(c),L._crypto_auth_hmacsha512_keygen(c);var w=w0(k,a);return p0(P),w}function Pi(a,P,k){var c=[];a0(k),l2(c,a,"state_address");var w=Z(P=W(c,P,"message_chunk")),Q=P.length;c.push(w),0|L._crypto_auth_hmacsha512_update(a,w,Q)&&H0(c,"invalid usage"),p0(c)}function Ti(a,P,k){var c=[];a=W(c,a,"tag");var w,Q=0|L._crypto_auth_hmacsha512_bytes();a.length!==Q&&i0(c,"invalid tag length"),w=Z(a),c.push(w);var S=Z(P=W(c,P,"message")),R=P.length;c.push(S),k=W(c,k,"key");var V,E=0|L._crypto_auth_hmacsha512_keybytes();k.length!==E&&i0(c,"invalid key length"),V=Z(k),c.push(V);var e0=!(0|L._crypto_auth_hmacsha512_verify(w,S,R,0,V));return p0(c),e0}function wi(a){var P=[];a0(a);var k=new k0(0|L._crypto_auth_keybytes()),c=k.address;P.push(c),L._crypto_auth_keygen(c);var w=w0(k,a);return p0(P),w}function mi(a,P,k){var c=[];a=W(c,a,"tag");var w,Q=0|L._crypto_auth_bytes();a.length!==Q&&i0(c,"invalid tag length"),w=Z(a),c.push(w);var S=Z(P=W(c,P,"message")),R=P.length;c.push(S),k=W(c,k,"key");var V,E=0|L._crypto_auth_keybytes();k.length!==E&&i0(c,"invalid key length"),V=Z(k),c.push(V);var e0=!(0|L._crypto_auth_verify(w,S,R,0,V));return p0(c),e0}function Di(a,P,k){var c=[];a0(k),a=W(c,a,"publicKey");var w,Q=0|L._crypto_box_publickeybytes();a.length!==Q&&i0(c,"invalid publicKey length"),w=Z(a),c.push(w),P=W(c,P,"privateKey");var S,R=0|L._crypto_box_secretkeybytes();P.length!==R&&i0(c,"invalid privateKey length"),S=Z(P),c.push(S);var V=new k0(0|L._crypto_box_beforenmbytes()),E=V.address;if(c.push(E),!(0|L._crypto_box_beforenm(E,w,S))){var e0=w0(V,k);return p0(c),e0}H0(c,"invalid usage")}function Mi(a,P,k){var c=[];a0(k),a=W(c,a,"publicKey");var w,Q=0|L._crypto_box_curve25519xchacha20poly1305_publickeybytes();a.length!==Q&&i0(c,"invalid publicKey length"),w=Z(a),c.push(w),P=W(c,P,"privateKey");var S,R=0|L._crypto_box_curve25519xchacha20poly1305_secretkeybytes();P.length!==R&&i0(c,"invalid privateKey length"),S=Z(P),c.push(S);var V=new k0(0|L._crypto_box_curve25519xchacha20poly1305_beforenmbytes()),E=V.address;if(c.push(E),!(0|L._crypto_box_curve25519xchacha20poly1305_beforenm(E,w,S))){var e0=w0(V,k);return p0(c),e0}H0(c,"invalid usage")}function Si(a,P,k,c,w){var Q=[];a0(w);var S=Z(a=W(Q,a,"message")),R=a.length;Q.push(S),P=W(Q,P,"nonce");var V,E=0|L._crypto_box_curve25519xchacha20poly1305_noncebytes();P.length!==E&&i0(Q,"invalid nonce length"),V=Z(P),Q.push(V),k=W(Q,k,"publicKey");var e0,y0=0|L._crypto_box_curve25519xchacha20poly1305_publickeybytes();k.length!==y0&&i0(Q,"invalid publicKey length"),e0=Z(k),Q.push(e0),c=W(Q,c,"privateKey");var h0,g0=0|L._crypto_box_curve25519xchacha20poly1305_secretkeybytes();c.length!==g0&&i0(Q,"invalid privateKey length"),h0=Z(c),Q.push(h0);var D0=new k0(0|R),Q0=D0.address;Q.push(Q0);var X0=new k0(0|L._crypto_box_curve25519xchacha20poly1305_macbytes()),R0=X0.address;if(Q.push(R0),!(0|L._crypto_box_curve25519xchacha20poly1305_detached(Q0,R0,S,R,0,V,e0,h0))){var W0=w0({ciphertext:D0,mac:X0},w);return p0(Q),W0}H0(Q,"invalid usage")}function Ii(a,P,k,c){var w=[];a0(c);var Q=Z(a=W(w,a,"message")),S=a.length;w.push(Q),P=W(w,P,"nonce");var R,V=0|L._crypto_box_curve25519xchacha20poly1305_noncebytes();P.length!==V&&i0(w,"invalid nonce length"),R=Z(P),w.push(R),k=W(w,k,"sharedKey");var E,e0=0|L._crypto_box_curve25519xchacha20poly1305_beforenmbytes();k.length!==e0&&i0(w,"invalid sharedKey length"),E=Z(k),w.push(E);var y0=new k0(0|S),h0=y0.address;w.push(h0);var g0=new k0(0|L._crypto_box_curve25519xchacha20poly1305_macbytes()),D0=g0.address;if(w.push(D0),!(0|L._crypto_box_curve25519xchacha20poly1305_detached_afternm(h0,D0,Q,S,0,R,E))){var Q0=w0({ciphertext:y0,mac:g0},c);return p0(w),Q0}H0(w,"invalid usage")}function Ci(a,P,k,c,w){var Q=[];a0(w);var S=Z(a=W(Q,a,"message")),R=a.length;Q.push(S),P=W(Q,P,"nonce");var V,E=0|L._crypto_box_curve25519xchacha20poly1305_noncebytes();P.length!==E&&i0(Q,"invalid nonce length"),V=Z(P),Q.push(V),k=W(Q,k,"publicKey");var e0,y0=0|L._crypto_box_curve25519xchacha20poly1305_publickeybytes();k.length!==y0&&i0(Q,"invalid publicKey length"),e0=Z(k),Q.push(e0),c=W(Q,c,"privateKey");var h0,g0=0|L._crypto_box_curve25519xchacha20poly1305_secretkeybytes();c.length!==g0&&i0(Q,"invalid privateKey length"),h0=Z(c),Q.push(h0);var D0=new k0(R+L._crypto_box_curve25519xchacha20poly1305_macbytes()|0),Q0=D0.address;if(Q.push(Q0),!(0|L._crypto_box_curve25519xchacha20poly1305_easy(Q0,S,R,0,V,e0,h0))){var X0=w0(D0,w);return p0(Q),X0}H0(Q,"invalid usage")}function Hi(a,P,k,c){var w=[];a0(c);var Q=Z(a=W(w,a,"message")),S=a.length;w.push(Q),P=W(w,P,"nonce");var R,V=0|L._crypto_box_curve25519xchacha20poly1305_noncebytes();P.length!==V&&i0(w,"invalid nonce length"),R=Z(P),w.push(R),k=W(w,k,"sharedKey");var E,e0=0|L._crypto_box_curve25519xchacha20poly1305_beforenmbytes();k.length!==e0&&i0(w,"invalid sharedKey length"),E=Z(k),w.push(E);var y0=new k0(S+L._crypto_box_curve25519xchacha20poly1305_macbytes()|0),h0=y0.address;if(w.push(h0),!(0|L._crypto_box_curve25519xchacha20poly1305_easy_afternm(h0,Q,S,0,R,E))){var g0=w0(y0,c);return p0(w),g0}H0(w,"invalid usage")}function Yi(a){var P=[];a0(a);var k=new k0(0|L._crypto_box_curve25519xchacha20poly1305_publickeybytes()),c=k.address;P.push(c);var w=new k0(0|L._crypto_box_curve25519xchacha20poly1305_secretkeybytes()),Q=w.address;P.push(Q),L._crypto_box_curve25519xchacha20poly1305_keypair(c,Q);var S=w0({publicKey:k,privateKey:w,keyType:"curve25519"},a);return p0(P),S}function Qi(a,P,k,c,w,Q){var S=[];a0(Q);var R=Z(a=W(S,a,"ciphertext")),V=a.length;S.push(R),P=W(S,P,"mac");var E,e0=0|L._crypto_box_curve25519xchacha20poly1305_macbytes();P.length!==e0&&i0(S,"invalid mac length"),E=Z(P),S.push(E),k=W(S,k,"nonce");var y0,h0=0|L._crypto_box_curve25519xchacha20poly1305_noncebytes();k.length!==h0&&i0(S,"invalid nonce length"),y0=Z(k),S.push(y0),c=W(S,c,"publicKey");var g0,D0=0|L._crypto_box_curve25519xchacha20poly1305_publickeybytes();c.length!==D0&&i0(S,"invalid publicKey length"),g0=Z(c),S.push(g0),w=W(S,w,"privateKey");var Q0,X0=0|L._crypto_box_curve25519xchacha20poly1305_secretkeybytes();w.length!==X0&&i0(S,"invalid privateKey length"),Q0=Z(w),S.push(Q0);var R0=new k0(0|V),W0=R0.address;if(S.push(W0),!(0|L._crypto_box_curve25519xchacha20poly1305_open_detached(W0,R,E,V,0,y0,g0,Q0))){var _2=w0(R0,Q);return p0(S),_2}H0(S,"incorrect key pair for the given ciphertext")}function Gi(a,P,k,c,w){var Q=[];a0(w);var S=Z(a=W(Q,a,"ciphertext")),R=a.length;Q.push(S),P=W(Q,P,"mac");var V,E=0|L._crypto_box_curve25519xchacha20poly1305_macbytes();P.length!==E&&i0(Q,"invalid mac length"),V=Z(P),Q.push(V),k=W(Q,k,"nonce");var e0,y0=0|L._crypto_box_curve25519xchacha20poly1305_noncebytes();k.length!==y0&&i0(Q,"invalid 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S=[];a0(Q);var R=Z(a=W(S,a,"ciphertext")),V=a.length;S.push(R),P=W(S,P,"mac");var E,e0=0|L._crypto_box_macbytes();P.length!==e0&&i0(S,"invalid mac length"),E=Z(P),S.push(E),k=W(S,k,"nonce");var y0,h0=0|L._crypto_box_noncebytes();k.length!==h0&&i0(S,"invalid nonce length"),y0=Z(k),S.push(y0),c=W(S,c,"publicKey");var g0,D0=0|L._crypto_box_publickeybytes();c.length!==D0&&i0(S,"invalid publicKey length"),g0=Z(c),S.push(g0),w=W(S,w,"privateKey");var Q0,X0=0|L._crypto_box_secretkeybytes();w.length!==X0&&i0(S,"invalid privateKey length"),Q0=Z(w),S.push(Q0);var R0=new k0(0|V),W0=R0.address;if(S.push(W0),!(0|L._crypto_box_open_detached(W0,R,E,V,0,y0,g0,Q0))){var _2=w0(R0,Q);return p0(S),_2}H0(S,"incorrect key pair for the given ciphertext")}function Vi(a,P,k,c,w){var Q=[];a0(w),a=W(Q,a,"ciphertext");var S,R=L._crypto_box_macbytes(),V=a.length;V<R&&i0(Q,"ciphertext is too short"),S=Z(a),Q.push(S),P=W(Q,P,"nonce");var E,e0=0|L._crypto_box_noncebytes();P.length!==e0&&i0(Q,"invalid nonce 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k0(0|L._crypto_core_ed25519_bytes()),Q=w.address;if(k.push(Q),!(0|L._crypto_core_ed25519_from_hash(Q,c))){var S=w0(w,P);return p0(k),S}H0(k,"invalid usage")}function bi(a,P){var k=[];a0(P);var c=Z(a=W(k,a,"r"));a.length,k.push(c);var w=new k0(0|L._crypto_core_ed25519_bytes()),Q=w.address;if(k.push(Q),!(0|L._crypto_core_ed25519_from_uniform(Q,c))){var S=w0(w,P);return p0(k),S}H0(k,"invalid usage")}function r7(a,P){var k=[];a0(P),a=W(k,a,"repr");var c,w=0|L._crypto_core_ed25519_bytes();a.length!==w&&i0(k,"invalid repr length"),c=Z(a),k.push(c);var Q=(0|L._crypto_core_ed25519_is_valid_point(c))==1;return p0(k),Q}function A7(a){var P=[];a0(a);var k=new k0(0|L._crypto_core_ed25519_bytes()),c=k.address;P.push(c),L._crypto_core_ed25519_random(c);var w=w0(k,a);return p0(P),w}function n7(a,P,k){var c=[];a0(k),a=W(c,a,"x");var w,Q=0|L._crypto_core_ed25519_scalarbytes();a.length!==Q&&i0(c,"invalid x length"),w=Z(a),c.push(w),P=W(c,P,"y");var S,R=0|L._crypto_core_ed25519_scalarbytes();P.length!==R&&i0(c,"invalid y length"),S=Z(P),c.push(S);var V=new k0(0|L._crypto_core_ed25519_scalarbytes()),E=V.address;c.push(E),L._crypto_core_ed25519_scalar_add(E,w,S);var e0=w0(V,k);return p0(c),e0}function e7(a,P){var k=[];a0(P),a=W(k,a,"s");var c,w=0|L._crypto_core_ed25519_scalarbytes();a.length!==w&&i0(k,"invalid s length"),c=Z(a),k.push(c);var Q=new k0(0|L._crypto_core_ed25519_scalarbytes()),S=Q.address;k.push(S),L._crypto_core_ed25519_scalar_complement(S,c);var R=w0(Q,P);return p0(k),R}function t7(a,P){var k=[];a0(P),a=W(k,a,"s");var c,w=0|L._crypto_core_ed25519_scalarbytes();a.length!==w&&i0(k,"invalid s length"),c=Z(a),k.push(c);var Q=new k0(0|L._crypto_core_ed25519_scalarbytes()),S=Q.address;if(k.push(S),!(0|L._crypto_core_ed25519_scalar_invert(S,c))){var R=w0(Q,P);return p0(k),R}H0(k,"invalid reciprocate")}function _7(a,P,k){var c=[];a0(k),a=W(c,a,"x");var w,Q=0|L._crypto_core_ed25519_scalarbytes();a.length!==Q&&i0(c,"invalid x 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I6=0;I6<10;I6++)Z1^=Y2(z1+rr>>>0,7),f1^=Y2(Z1+z1>>>0,9),rr^=Y2(f1+Z1>>>0,13),z1^=Y2(rr+f1>>>0,18),J1^=Y2(N1+$1>>>0,7),O1^=Y2(J1+N1>>>0,9),$1^=Y2(O1+J1>>>0,13),N1^=Y2($1+O1>>>0,18),Ar^=Y2(E1+W1>>>0,7),F1^=Y2(Ar+E1>>>0,9),W1^=Y2(F1+Ar>>>0,13),E1^=Y2(W1+F1>>>0,18),K1^=Y2(nr+b1>>>0,7),u1^=Y2(K1+nr>>>0,9),b1^=Y2(u1+K1>>>0,13),nr^=Y2(b1+u1>>>0,18),$1^=Y2(z1+K1>>>0,7),F1^=Y2($1+z1>>>0,9),K1^=Y2(F1+$1>>>0,13),z1^=Y2(K1+F1>>>0,18),W1^=Y2(N1+Z1>>>0,7),u1^=Y2(W1+N1>>>0,9),Z1^=Y2(u1+W1>>>0,13),N1^=Y2(Z1+u1>>>0,18),b1^=Y2(E1+J1>>>0,7),f1^=Y2(b1+E1>>>0,9),J1^=Y2(f1+b1>>>0,13),E1^=Y2(J1+f1>>>0,18),rr^=Y2(nr+Ar>>>0,7),O1^=Y2(rr+nr>>>0,9),Ar^=Y2(O1+rr>>>0,13),nr^=Y2(Ar+O1>>>0,18);const z2=new Uint8Array(64);return B1(z2,0,z1+g0>>>0),B1(z2,4,$1+D0>>>0),B1(z2,8,F1+Q0>>>0),B1(z2,12,K1+X0>>>0),B1(z2,16,Z1+R0>>>0),B1(z2,20,N1+W0>>>0),B1(z2,24,W1+_2>>>0),B1(z2,28,u1+T2>>>0),B1(z2,32,f1+s1>>>0),B1(z2,36,J1+R1>>>0),B1(z2,40,E1+n6>>>0),B1(z2,44,b1+m6>>>0),B1(z2,48,rr+jA>>>0),B1(z2,52,O1+D6>>>0),B1(z2,56,Ar+M6>>>0),B1(z2,60,nr+S6>>>0),z2}function lA(a,P){const k=new Uint8Array(16),c=Re.crypto_core_hsalsa20(k,a),w=Re.crypto_core_hsalsa20(P.subarray(0,16),c),Q=new Uint8Array(P.subarray(16,24)),S=Je(w,Q,0),R=S.subarray(0,32),V=new Uint8Array(S.subarray(32)),E=f2.crypto_onetimeauth_init(R);return{_subkey:w,_nonce8:Q,_counter:1,_ksBuf:V,_ksOff:0,_authState:E}}function qo(a,P){return lA(a,P)}function n4(a,P){const k=Ee(a,P);return f2.crypto_onetimeauth_update(a._authState,k),k}function s4(a,P){return f2.crypto_onetimeauth_update(a._authState,P),Ee(a,P)}function pA(a){return f2.crypto_onetimeauth_final(a._authState)}function Po(a,P,k,c){const w=Number(k),Q=c.subarray(0,w),S=c.subarray(w),R=lA(a,P),V=s4(R,Q),E=pA(R),e0=S.length===16&&To(S,E),y0=We(V);return{valid:e0,content:y0}}function Ee(a,P){const k=new Uint8Array(P.length);let c=0;for(;c<P.length;){a._ksOff>=a._ksBuf.length&&(a._ksBuf=Je(a._subkey,a._nonce8,a._counter++),a._ksOff=0);const w=a._ksBuf.length-a._ksOff,Q=P.length-c,S=Math.min(w,Q);for(let R=0;R<S;R++)k[c+R]=P[c+R]^a._ksBuf[a._ksOff+R];a._ksOff+=S,c+=S}return k}function To(a,P){if(a.length!==P.length)return!1;let k=0;for(let c=0;c<a.length;c++)k|=a[c]^P[c];return k===0}const be=16n,hA=256*1024;function wo(a){return T6(lo(a.fileName),jo())}function Fe(a){const P=Math.min(1024,a.length),k=new $e(a.subarray(0,P)),c=Xe(k),w=ko(Xe,k),Q=k.offset();return{header:{fileName:c,fileExtra:w},rest:a.subarray(Q)}}function mo(a,P,k,c,w,Q,S){const R=lA(k,c),V=so(w),E=Number(Q-be-w-8n);if(E<0)throw new Error("encryptFile: encSize too small");const e0=n4(R,T6(V,P)),y0=new Uint8Array(a.length);for(let Q0=0;Q0<a.length;Q0+=hA){const X0=Math.min(Q0+hA,a.length),R0=n4(R,a.subarray(Q0,X0));y0.set(R0,Q0),S?.(X0,a.length)}a.length===0&&S?.(0,0);const h0=new Uint8Array(E);h0.fill(35);const g0=n4(R,h0),D0=pA(R);return T6(e0,y0,g0,D0)}function Do(a,P,k,c,w){if(P.length===0)throw new Error("decryptChunks: empty chunks");const Q=a-be,S=P.length===1?P[0]:T6(...P);if(!w){const{valid:R0,content:W0}=Po(k,c,Q,S);if(!R0)throw new Error("decryptChunks: invalid auth tag");const{header:_2,rest:T2}=Fe(W0);return{header:_2,content:T2}}const R=Number(Q),V=S.subarray(0,R),E=S.subarray(R),e0=lA(k,c),y0=new Uint8Array(R);for(let R0=0;R0<R;R0+=hA){const W0=Math.min(R0+hA,R),_2=s4(e0,V.subarray(R0,W0));y0.set(_2,R0),w(W0,R)}R===0&&w(0,0);const h0=pA(e0);let g0=E.length===16?0:1;for(let R0=0;R0<h0.length;R0++)g0|=E[R0]^h0[R0];if(g0!==0)throw new Error("decryptChunks: invalid auth tag");const D0=We(y0),{header:Q0,rest:X0}=Fe(D0);return{header:Q0,content:X0}}function Mo(a){return f2.crypto_hash_sha256(a)}function rt(a,P,k){const w=f2.crypto_hash_sha512_init();let Q=0;for(const S of a)for(let R=0;R<S.length;R+=4194304){const V=Math.min(R+4194304,S.length);f2.crypto_hash_sha512_update(w,S.subarray(R,V)),Q+=V-R,P?.(Q,k??Q)}return f2.crypto_hash_sha512_final(w)}const So="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_",At=new Uint8Array(128);At.fill(255);for(let a=0;a<64;a++)At[So.charCodeAt(a)]=a;const nt=a=>a*1024,et=a=>a*1048576,Io=nt(64),Ke=nt(256),e4=et(1),Ne=et(4),Co=8,Ho=16;function t4(a){return Math.floor(a*3/4)}function Yo(a){let P,k;a>t4(Ne)?(P=e4,k=Ne):a>t4(e4)?(P=Ke,k=e4):(P=Io,k=Ke);function c(w){if(w===0)return[];if(w>=k){const R=Math.floor(w/k),V=w%k;return new Array(R).fill(k).concat(c(V))}if(w>t4(k))return[k];const Q=Math.floor(w/P),S=w%P;return new Array(S===0?Q:Q+1).fill(P)}return c(a)}await f2.ready;function Qo(a,P,k){if(k.length<16)return{valid:!1,content:new Uint8Array(0),computedTag:new Uint8Array(0)};const c=k.subarray(0,k.length-16),w=k.subarray(k.length-16),Q=qo(a,P),S=s4(Q,c),R=pA(Q);return{valid:Go(w,R),content:S,computedTag:R}}function Go(a,P){if(a.length!==P.length)return!1;let k=0;for(let c=0;c<a.length;c++)k|=a[c]^P[c];return k===0}function Lo(a,P,k,c){k.slice(k.length-16);const{valid:w,content:Q}=Qo(a,P,k);if(!w)throw new Error("transport auth tag verification failed");if(c!==null){const S=Mo(Q);if(!Xo(S,c))throw new Error("chunk digest mismatch")}return Q}function Xo(a,P){if(a.length!==P.length)return!1;let k=0;for(let c=0;c<a.length;c++)k|=a[c]^P[c];return k===0}const tt=`session-${Date.now()}-${crypto.randomUUID()}`;let r6=null,h1=null;const Lr=new Map;let P6=0,BA=null,dr=!1;const Xr=new Map;async function w6(){return BA||(BA=await(await navigator.storage.getDirectory()).getDirectoryHandle(tt,{create:!0})),BA}async function Ro(){const a=await navigator.storage.getDirectory(),P=Date.now()-36e5;for await(const[k]of a.entries()){if(!k.startsWith("session-"))continue;const c=k.split("-"),w=parseInt(c[1],10);if(!isNaN(w)&&w<P)try{await a.removeEntry(k,{recursive:!0})}catch{}}}async function Fo(a,P,k){const c=new Uint8Array(P),w=new Uint8Array(32),Q=new Uint8Array(24);crypto.getRandomValues(w),crypto.getRandomValues(Q);const S=wo({fileName:k}),R=BigInt(S.length+c.length),V=Number(R)+Co+Ho,E=Yo(V),e0=BigInt(E.reduce((_2,T2)=>_2+T2,0)),y0=Number(e0),h0=c.length+y0*2,g0=mo(c,S,w,Q,R,e0,_2=>{self.postMessage({id:a,type:"progress",done:_2,total:h0})}),D0=rt([g0],_2=>{self.postMessage({id:a,type:"progress",done:c.length+_2,total:h0})},y0);console.log(`[WORKER-DBG] encrypt: encData.len=${g0.length} digest=${b2(D0,64)} chunkSizes=[${E.join(",")}]`);const X0=await(await w6()).getFileHandle("upload.bin",{create:!0}),R0=await X0.createSyncAccessHandle(),W0=R0.write(g0);if(W0!==g0.length)throw new Error(`OPFS upload write: ${W0}/${g0.length}`);R0.flush(),R0.close(),r6=await X0.createSyncAccessHandle(),self.postMessage({id:a,type:"progress",done:h0,total:h0}),self.postMessage({id:a,type:"encrypted",digest:D0,key:w,nonce:Q,chunkSizes:E})}function Ko(a,P,k){if(!r6){self.postMessage({id:a,type:"error",message:"No upload file open"});return}const c=new Uint8Array(k);r6.read(c,{at:P});const w=c.buffer;self.postMessage({id:a,type:"chunk",data:w},[w])}async function No(a,P,k,c,w,Q){const S=new Uint8Array(c);console.log(`[WORKER-DBG] store chunk=${Q} body.len=${S.length} nonce=${b2(k,24)} dhSecret=${b2(P)} digest=${b2(w,32)} body[0..8]=${b2(S)} body[-8..]=${b2(S.slice(-8))}`);const R=Lo(P,k,S,w);if(console.log(`[WORKER-DBG] decrypted chunk=${Q} len=${R.length} [0..8]=${b2(R)} [-8..]=${b2(R.slice(-8))}`),dr){Xr.set(Q,R),self.postMessage({id:a,type:"stored"});return}h1||(h1=await(await(await w6()).getFileHandle("download.bin",{create:!0})).createSyncAccessHandle());const V=P6;P6+=R.length,Lr.set(Q,{offset:V,size:R.length});const E=h1.write(R,{at:V});if(console.log(`[WORKER-DBG] OPFS write chunk=${Q} offset=${V} size=${R.length} written=${E}`),E!==R.length){console.warn(`[WORKER] OPFS write failed chunk=${Q}: ${E}/${R.length}, falling back to in-memory storage`);for(const[h0,g0]of Lr.entries()){if(h0===Q)continue;const D0=new Uint8Array(g0.size);h1.read(D0,{at:g0.offset}),Xr.set(h0,D0)}h1.close(),h1=null;try{await(await w6()).removeEntry("download.bin")}catch{}Lr.clear(),P6=0,Xr.set(Q,R),dr=!0,self.postMessage({id:a,type:"stored"});return}h1.flush();const e0=new Uint8Array(Math.min(8,R.length));h1.read(e0,{at:V});const y0=new Uint8Array(Math.min(8,R.length));h1.read(y0,{at:V+R.length-y0.length}),console.log(`[WORKER-DBG] OPFS verify chunk=${Q} readBack[0..8]=${b2(e0)} readBack[-8..]=${b2(y0)} expected[0..8]=${b2(R)} expected[-8..]=${b2(R.slice(-8))}`),self.postMessage({id:a,type:"stored"})}async function Oo(a,P,k,c,w){console.log(`[WORKER-DBG] verify: expectedSize=${P} expectedDigest=${b2(k,64)} useMemory=${dr} chunkMeta.size=${Lr.size} memoryChunks.size=${Xr.size}`);const Q=[];let S=0;const R=P*3;let V=0;if(dr){const D0=[...Xr.entries()].sort((Q0,X0)=>Q0[0]-X0[0]);for(const[Q0,X0]of D0)console.log(`[WORKER-DBG] verify memory chunk=${Q0} size=${X0.length}`),Q.push(X0),S+=X0.length,V+=X0.length,self.postMessage({id:a,type:"progress",done:V,total:R})}else{h1&&(h1.flush(),h1.close(),h1=null);const X0=await(await(await w6()).getFileHandle("download.bin")).createSyncAccessHandle();console.log(`[WORKER-DBG] verify: OPFS file size=${X0.getSize()}`);const R0=[...Lr.entries()].sort((W0,_2)=>W0[0]-_2[0]);for(const[W0,_2]of R0){const T2=new Uint8Array(_2.size),s1=X0.read(T2,{at:_2.offset});console.log(`[WORKER-DBG] verify read chunk=${W0} offset=${_2.offset} size=${_2.size} bytesRead=${s1} [0..8]=${b2(T2)} [-8..]=${b2(T2.slice(-8))}`),Q.push(T2),S+=_2.size,V+=_2.size,self.postMessage({id:a,type:"progress",done:V,total:R})}X0.close()}if(S!==P){self.postMessage({id:a,type:"error",message:`File size mismatch: ${S} !== ${P}`});return}const E=4*1024*1024,e0=f2.crypto_hash_sha512_init();for(let D0=0;D0<Q.length;D0++){const Q0=Q[D0];for(let X0=0;X0<Q0.length;X0+=E){const R0=Math.min(X0+E,Q0.length);f2.crypto_hash_sha512_update(e0,Q0.subarray(X0,R0)),V+=R0-X0,self.postMessage({id:a,type:"progress",done:V,total:R})}}const y0=f2.crypto_hash_sha512_final(e0);if(!xo(y0,k)){console.error(`[WORKER-DBG] DIGEST MISMATCH: expected=${b2(k,64)} actual=${b2(y0,64)} chunks=${Q.length} totalSize=${S}`);const D0=f2.crypto_hash_sha512_init();for(let Q0=0;Q0<Q.length;Q0++){const X0=Q[Q0];for(let W0=0;W0<X0.length;W0+=E)f2.crypto_hash_sha512_update(D0,X0.subarray(W0,Math.min(W0+E,X0.length)));const R0=rt([X0]);console.error(`[WORKER-DBG] chunk[${Q0}] size=${X0.length} sha512=${b2(R0,32)}… [0..8]=${b2(X0)} [-8..]=${b2(X0.slice(-8))}`)}self.postMessage({id:a,type:"error",message:"File digest mismatch"});return}console.log("[WORKER-DBG] verify: digest OK");const h0=Do(BigInt(P),Q,c,w,D0=>{self.postMessage({id:a,type:"progress",done:P*2+D0,total:R})});if(self.postMessage({id:a,type:"progress",done:R,total:R}),!dr){const D0=await w6();try{await D0.removeEntry("download.bin")}catch{}}Lr.clear(),Xr.clear(),P6=0,dr=!1;const g0=h0.content.buffer.slice(h0.content.byteOffset,h0.content.byteOffset+h0.content.byteLength);self.postMessage({id:a,type:"decrypted",header:h0.header,content:g0},[g0])}async function Uo(a){r6&&(r6.close(),r6=null),h1&&(h1.close(),h1=null),Lr.clear(),Xr.clear(),P6=0,dr=!1;try{await(await navigator.storage.getDirectory()).removeEntry(tt,{recursive:!0})}catch{}BA=null,self.postMessage({id:a,type:"cleaned"})}let Oe=Promise.resolve();self.onmessage=a=>{const P=a.data;Oe=Oe.then(async()=>{try{switch(await _t,P.type){case"encrypt":await Fo(P.id,P.data,P.fileName);break;case"readChunk":Ko(P.id,P.offset,P.size);break;case"decryptAndStoreChunk":await No(P.id,P.dhSecret,P.nonce,P.body,P.chunkDigest,P.chunkNo);break;case"verifyAndDecrypt":await Oo(P.id,P.size,P.digest,P.key,P.nonce);break;case"cleanup":await Uo(P.id);break;default:self.postMessage({id:P.id,type:"error",message:`Unknown message type: ${P.type}`})}}catch(k){self.postMessage({id:P.id,type:"error",message:k?.message??String(k)})}})};function b2(a,P=8){return Array.from(a.slice(0,P)).map(k=>k.toString(16).padStart(2,"0")).join("")}function xo(a,P){if(a.length!==P.length)return!1;let k=0;for(let c=0;c<a.length;c++)k|=a[c]^P[c];return k===0}const _t=(async()=>{await f2.ready,await Ro()})();_t.then(()=>self.postMessage({type:"ready"}),()=>{});
diff --git a/file-assets/index.css b/file-assets/index.css
new file mode 100644
index 0000000000..0545a2cee1
--- /dev/null
+++ b/file-assets/index.css
@@ -0,0 +1 @@
+#app,[data-xftp-app]{font-family:system-ui,-apple-system,sans-serif;color:#333;width:100%;max-width:480px;padding:16px;box-sizing:border-box;--xftp-ring-fg: #3b82f6}:is(#app,[data-xftp-app]) .card{background:#fff;border-radius:12px;padding:32px 24px;box-shadow:0 1px 3px #0000001a;text-align:center}:is(#app,[data-xftp-app]) h1{font-size:1.25rem;font-weight:600;margin-bottom:24px}:is(#app,[data-xftp-app]) .stage{margin-top:16px}:is(#app,[data-xftp-app]) .drop-zone{border:2px dashed #ccc;border-radius:8px;padding:32px 16px;transition:border-color .15s,background .15s}:is(#app,[data-xftp-app]) .drop-zone.drag-over{border-color:#3b82f6;background:#eff6ff}:is(#app,[data-xftp-app]) .btn{display:inline-block;padding:10px 24px;border:none;border-radius:6px;background:#3b82f6;color:#fff;font-size:.9rem;font-weight:500;cursor:pointer;transition:background .15s}:is(#app,[data-xftp-app]) .btn:hover{background:#2563eb}:is(#app,[data-xftp-app]) .btn-secondary{background:#6b7280}:is(#app,[data-xftp-app]) .btn-secondary:hover{background:#4b5563}:is(#app,[data-xftp-app]) .hint{color:#999;font-size:.85rem;margin-top:8px}:is(#app,[data-xftp-app]) .expiry{margin-top:12px}:is(#app,[data-xftp-app]) .progress-ring{display:block;margin:0 auto 12px}:is(#app,[data-xftp-app]) #upload-status,:is(#app,[data-xftp-app]) #dl-status{font-size:.9rem;color:#666;margin-bottom:12px}:is(#app,[data-xftp-app]) .link-row{display:flex;gap:8px;margin-top:12px}:is(#app,[data-xftp-app]) .link-row input{flex:1;padding:8px 10px;border:1px solid #ccc;border-radius:6px;font-size:.85rem;background:#f9fafb}:is(#app,[data-xftp-app]) .success{color:#16a34a;font-weight:600}:is(#app,[data-xftp-app]) .error{color:#dc2626;font-weight:500;margin-bottom:12px}:is(#app,[data-xftp-app]) .security-note{margin-top:20px;padding:12px;background:#f0fdf4;border-radius:6px;font-size:.8rem;color:#555;text-align:left}:is(#app,[data-xftp-app]) .security-note p+p{margin-top:6px}:is(#app,[data-xftp-app]) .security-note a{color:#3b82f6;text-decoration:none}:is(#app,[data-xftp-app]) .security-note a:hover{text-decoration:underline}.dark :is(#app,[data-xftp-app]){color:#e5e7eb;--xftp-ring-bg: #374151;--xftp-ring-fg: #60a5fa;--xftp-ring-text: #e5e7eb;--xftp-ring-done: #4ade80}.dark :is(#app,[data-xftp-app]) .card{background:#1f2937;box-shadow:0 1px 3px #0006}.dark :is(#app,[data-xftp-app]) .drop-zone{border-color:#4b5563}.dark :is(#app,[data-xftp-app]) .drop-zone.drag-over{border-color:#60a5fa;background:#3b82f626}.dark :is(#app,[data-xftp-app]) .btn-secondary{background:#4b5563}.dark :is(#app,[data-xftp-app]) .btn-secondary:hover{background:#374151}.dark :is(#app,[data-xftp-app]) .hint{color:#9ca3af}.dark :is(#app,[data-xftp-app]) #upload-status,.dark :is(#app,[data-xftp-app]) #dl-status{color:#9ca3af}.dark :is(#app,[data-xftp-app]) .link-row input{background:#374151;border-color:#4b5563;color:#e5e7eb}.dark :is(#app,[data-xftp-app]) .success{color:#4ade80}.dark :is(#app,[data-xftp-app]) .error{color:#f87171}.dark :is(#app,[data-xftp-app]) .security-note{background:#22c55e1a;color:#d1d5db}.dark :is(#app,[data-xftp-app]) .security-note a{color:#60a5fa}
diff --git a/file-assets/index.js b/file-assets/index.js
new file mode 100644
index 0000000000..5413da3089
--- /dev/null
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B6(i,n,e,r,A,_,s){var h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0,z=0,$=0,V=0,W=0,e0=0,i0=0,o0=0,s0=0,h0=0,u0=0,y0=0,f0=0,B0=0,c0=0,j0=0,d0=0,w0=0,T0=0,P0=0,I0=0,M0=0,L0=0,E0=0,R0=0,F0=0,Q0=0,O0=0,X0=0,K0=0,z0=0,Z0=0,W0=0,b0=0,e2=0,r2=0,$0=0,V0=0,o2=0,s2=0,h2=0,y2=0,f2=0,a2=0,B2=0,v2=0,j2=0,q2=0,I2=0,x2=0,E2=0,H2=0,L2=0,X2=0,U2=0,n1=0,o1=0,s1=0,D1=0,C1=0,K1=0,z1=0,Z1=0,fe=0,ae=0,Be=0,pe=0,ce=0,Fe=0,wr=0,mr=0,qr=0,Tr=0,Et=0,N_=0,F_=0,Q_=0,O_=0,X_=0;return o0=X-560|0,X=o0,B=o0+352|0,Je(B),s&&a1(B,39696,34,0),Gr(o0+288|0,_,32,0),w=o0+352|0,a1(w,o0+320|0,32,0),a1(w,e,r,A),S=o0+224|0,N1(w,S),u=_,D=o[_+32|0]|o[_+33|0]<<8|(o[_+34|0]<<16|o[_+35|0]<<24),Y=o[_+36|0]|o[_+37|0]<<8|(o[_+38|0]<<16|o[_+39|0]<<24),v=o[_+40|0]|o[_+41|0]<<8|(o[_+42|0]<<16|o[_+43|0]<<24),h=o[_+44|0]|o[_+45|0]<<8|(o[_+46|0]<<16|o[_+47|0]<<24),B=o[_+48|0]|o[_+49|0]<<8|(o[_+50|0]<<16|o[_+51|0]<<24),_=o[_+52|0]|o[_+53|0]<<8|(o[_+54|0]<<16|o[_+55|0]<<24),g=o[u+60|0]|o[u+61|0]<<8|(o[u+62|0]<<16|o[u+63|0]<<24),u=o[u+56|0]|o[u+57|0]<<8|(o[u+58|0]<<16|o[u+59|0]<<24),f[i+56|0]=u,f[i+57|0]=u>>>8,f[i+58|0]=u>>>16,f[i+59|0]=u>>>24,f[i+60|0]=g,f[i+61|0]=g>>>8,f[i+62|0]=g>>>16,f[i+63|0]=g>>>24,f[i+48|0]=B,f[i+49|0]=B>>>8,f[i+50|0]=B>>>16,f[i+51|0]=B>>>24,f[i+52|0]=_,f[i+53|0]=_>>>8,f[i+54|0]=_>>>16,f[i+55|0]=_>>>24,f[i+40|0]=v,f[i+41|0]=v>>>8,f[i+42|0]=v>>>16,f[i+43|0]=v>>>24,f[i+44|0]=h,f[i+45|0]=h>>>8,f[i+46|0]=h>>>16,f[i+47|0]=h>>>24,f[i+32|0]=D,f[i+33|0]=D>>>8,f[i+34|0]=D>>>16,f[i+35|0]=D>>>24,f[i+36|0]=Y,f[i+37|0]=Y>>>8,f[i+38|0]=Y>>>16,f[i+39|0]=Y>>>24,Me(S),Qr(o0,S),be(i,o0),Je(w),s&&a1(w,39696,34,0),_=o0+352|0,a1(_,i,64,0),a1(_,e,r,A),q=o0+160|0,N1(_,q),Me(q),f[o0+288|0]=o[o0+288|0]&248,f[o0+319|0]=o[o0+319|0]&63|64,N=o0+288|0,e=N,r=o[e+23|0],j0=o[e+21|0]|o[e+22|0]<<8|r<<16&2031616,d0=(o[q+28|0]|o[q+29|0]<<8|(o[q+30|0]<<16|o[q+31|0]<<24))>>>7|0,v=T(j0,0,d0,0),B=c,e=o[q+27|0],r=0,h=o[q+23|0]|o[q+24|0]<<8|(o[q+25|0]<<16|o[q+26|0]<<24),_=e<<8|h>>>24,A=o[q+28|0],e=0,A=A<<16,Y=e|r,r=A|_,w0=((Y&3)<<30|r>>>2)&2097151,s=o[N+23|0]|o[N+24|0]<<8|(o[N+25|0]<<16|o[N+26|0]<<24),T0=s>>>5&2097151,e=T(w0,0,T0,0),_=e+v|0,r=c+B|0,A=e>>>0>_>>>0?r+1|0:r,r=o[q+23|0],P0=r<<16&2031616|(o[q+21|0]|o[q+22|0]<<8),I0=(o[N+28|0]|o[N+29|0]<<8|(o[N+30|0]<<16|o[N+31|0]<<24))>>>7|0,e=T(P0,0,I0,0),r=e+_|0,A=c+A|0,B=r,_=e>>>0>r>>>0?A+1|0:A,e=o[N+27|0],A=0,s=e<<8|s>>>24,e=o[N+28|0],r=0,e=e<<16,A=r|A,r=e|s,M0=((A&3)<<30|r>>>2)&2097151,L0=h>>>5&2097151,e=T(M0,0,L0,0),A=e+B|0,r=c+_|0,u=A,_=e>>>0>A>>>0?r+1|0:r,h=T(T0,0,L0,0),B=c,e=o[N+19|0],r=0,W=o[N+15|0]|o[N+16|0]<<8|(o[N+17|0]<<16|o[N+18|0]<<24),s=e<<8|W>>>24,e=o[N+20|0],e=e<<16,A=r|r,r=e|s,E0=(A&7)<<29|r>>>3,Y=A>>>3|0,r=T(E0,Y,d0,0),A=r+h|0,e=c+B|0,e=r>>>0>A>>>0?e+1|0:e,r=T(j0,a,w0,a),s=r+A|0,A=c+e|0,h=s,r=r>>>0>h>>>0?A+1|0:A,e=o[q+19|0],A=0,z=o[q+15|0]|o[q+16|0]<<8|(o[q+17|0]<<16|o[q+18|0]<<24),B=e<<8|z>>>24,s=o[q+20|0],e=0,s=s<<16,v=e|A,A=s|B,R0=(v&7)<<29|A>>>3,F0=v>>>3|0,e=T(R0,F0,I0,0),A=e+h|0,r=c+r|0,r=e>>>0>A>>>0?r+1|0:r,e=T(M0,a,P0,a),S=e+A|0,r=c+r|0,r=e>>>0>S>>>0?r+1|0:r,D=r,e=r-((S>>>0<4293918720)-1|0)|0,Q=e,r=e>>>21|0,v=S- -1048576|0,e=(e&2097151)<<11|v>>>21,u=e+u|0,A=r+_|0,A=e>>>0>u>>>0?A+1|0:A,h=A,e=A-((u>>>0<4293918720)-1|0)|0,K=e,B=u- -1048576|0,g=(e&2097151)<<11|B>>>21,s=e>>>21|0,e=T(I0,0,L0,0),r=c,A=e,e=T(d0,0,T0,0),A=A+e|0,r=c+r|0,r=e>>>0>A>>>0?r+1|0:r,e=A,A=T(w0,a,M0,a),G=e+A|0,e=c+r|0,e=A>>>0>G>>>0?e+1|0:e,A=G- -1048576|0,r=A&-2097152,w=G-r|0,_=e-((G>>>0<4293918720)-1|0)|0,r=(e-((_&131071)+(r>>>0>G>>>0)|0)|0)+s|0,e=g+w|0,r=e>>>0<w>>>0?r+1|0:r,X2=r,U2=e,w=T(e,r,470296,0),g=c,r=T(d0,0,M0,a),e=c,s=r,r=T(w0,a,I0,0),s=s+r|0,e=c+e|0,r=r>>>0>s>>>0?e+1|0:e,e=_>>>21|0,_=(_&2097151)<<11|A>>>21,s=_+s|0,A=e+r|0,A=_>>>0>s>>>0?A+1|0:A,_=A-((s>>>0<4293918720)-1|0)|0,h0=_,s0=s- -1048576|0,r=s0&-2097152,e=s-r|0,s=A-((_&131071)+(r>>>0>s>>>0)|0)|0,n1=s,A=B&-2097152,r=u-A|0,o1=r,_=h-((A>>>0>u>>>0)+K|0)|0,s1=_,D1=e,A=T(e,s,666643,0),s=A+w|0,e=c+g|0,e=A>>>0>s>>>0?e+1|0:e,A=T(r,_,654183,0),_=A+s|0,r=c+e|0,I=_,B=A>>>0>_>>>0?r+1|0:r,e=v&-2097152,G=S-e|0,Q=D-((e>>>0>S>>>0)+Q|0)|0,r=T(w0,a,E0,Y),A=c,e=r,Q0=W>>>6&2097151,r=T(Q0,0,d0,0),_=e+r|0,e=c+A|0,e=r>>>0>_>>>0?e+1|0:e,r=T(T0,0,P0,a),_=r+_|0,A=c+e|0,A=r>>>0>_>>>0?A+1|0:A,e=T(j0,a,L0,0),_=e+_|0,r=c+A|0,r=e>>>0>_>>>0?r+1|0:r,O0=z>>>6&2097151,A=T(I0,0,O0,0),_=A+_|0,e=c+r|0,e=A>>>0>_>>>0?e+1|0:e,A=T(M0,a,R0,F0),_=A+_|0,r=c+e|0,S=_,s=A>>>0>_>>>0?r+1|0:r,e=o[N+14|0],r=0,D=o[N+10|0]|o[N+11|0]<<8|(o[N+12|0]<<16|o[N+13|0]<<24),_=e<<8|D>>>24,A=o[N+15|0],e=0,A=A<<16,r=e|r,e=A|_,X0=((r&1)<<31|e>>>1)&2097151,r=T(X0,0,d0,0),e=c,A=r,r=T(w0,a,Q0,0),A=A+r|0,e=c+e|0,e=r>>>0>A>>>0?e+1|0:e,r=T(L0,0,E0,Y),_=r+A|0,A=c+e|0,A=r>>>0>_>>>0?A+1|0:A,e=T(T0,0,R0,F0),_=e+_|0,r=c+A|0,r=e>>>0>_>>>0?r+1|0:r,e=T(j0,a,P0,a),A=e+_|0,r=c+r|0,v=A,_=e>>>0>A>>>0?r+1|0:r,e=o[q+14|0],r=0,u=o[q+10|0]|o[q+11|0]<<8|(o[q+12|0]<<16|o[q+13|0]<<24),h=e<<8|u>>>24,e=o[q+15|0],e=e<<16|h,r=r|r,K0=((r&1)<<31|e>>>1)&2097151,r=T(K0,0,I0,0),A=r+v|0,e=c+_|0,e=r>>>0>A>>>0?e+1|0:e,r=T(M0,a,O0,0),v=r+A|0,e=c+e|0,e=r>>>0>v>>>0?e+1|0:e,h=e,r=e-((v>>>0<4293918720)-1|0)|0,u0=r,e=r>>>21|0,w=v- -1048576|0,r=(r&2097151)<<11|w>>>21,K=r+S|0,A=e+s|0,A=r>>>0>K>>>0?A+1|0:A,g=A,r=A-((K>>>0<4293918720)-1|0)|0,e0=r,e=r>>>21|0,S=K- 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-1048576|0,e=(e&2097151)<<11|s>>>21,g=e+f0|0,_=r+o0|0,e=e>>>0>g>>>0?_+1|0:_,r=T(s0,D,470296,0),_=r+u|0,A=c+A|0,A=r>>>0>_>>>0?A+1|0:A,r=s&-2097152,s=_-r|0,u=A-((r>>>0>_>>>0)+Y|0)|0,r=T(s0,D,666643,0),A=v&-2097152,q=r+(B-A|0)|0,_=c+(a-((A>>>0>B>>>0)+Q|0)|0)|0,_=r>>>0>q>>>0?_+1|0:_,A=_>>21,_=(_&2097151)<<11|q>>>21,s=_+s|0,r=A+u|0,r=_>>>0>s>>>0?r+1|0:r,_=r>>21,r=(r&2097151)<<11|s>>>21,u=r+g|0,A=e+_|0,e=u,A=e>>>0<r>>>0?A+1|0:A,r=A>>21,A=(A&2097151)<<11|e>>>21,Q=A+B2|0,r=r+e2|0,r=A>>>0>Q>>>0?r+1|0:r,A=r>>21,r=(r&2097151)<<11|Q>>>21,Y=r+K|0,A=A+w|0,A=r>>>0>Y>>>0?A+1|0:A,r=A>>21,A=(A&2097151)<<11|Y>>>21,g=A+y2|0,_=r+f2|0,_=A>>>0>g>>>0?_+1|0:_,A=_>>21,_=(_&2097151)<<11|g>>>21,B=_+V0|0,r=A+G|0,r=_>>>0>B>>>0?r+1|0:r,_=r>>21,r=(r&2097151)<<11|B>>>21,w=r+e0|0,A=_+i0|0,A=r>>>0>w>>>0?A+1|0:A,r=A>>21,A=(A&2097151)<<11|w>>>21,a=A+W|0,r=r+N|0,r=A>>>0>a>>>0?r+1|0:r,A=r>>21,r=(r&2097151)<<11|a>>>21,v=r+pe|0,A=A+ce|0,A=r>>>0>v>>>0?A+1|0:A,r=A>>21,A=(A&2097151)<<11|v>>>21,u=A+Be|0,_=r+h0|0,r=I&-2097152,G=n-r|0,_=A>>>0>u>>>0?_+1|0:_,I=G+((_&2097151)<<11|u>>>21)|0,A=(S-((n>>>0<r>>>0)+h2|0)|0)+(_>>21)|0,A=I>>>0<G>>>0?A+1|0:A,G=(A&2097151)<<11|I>>>21,r=A>>21,S=r,n=T(G,r,666643,0),r=q&2097151,n=n+r|0,_=c,f[i|0]=n,_=n>>>0<r>>>0?_+1|0:_,f[i+1|0]=(_&255)<<24|n>>>8,r=s&2097151,s=T(G,S,470296,0)+r|0,A=c,A=r>>>0>s>>>0?A+1|0:A,q=(_&2097151)<<11|n>>>21,s=q+s|0,A=(_>>21)+A|0,A=s>>>0<q>>>0?A+1|0:A,f[i+4|0]=(A&2047)<<21|s>>>11,f[i+3|0]=(A&7)<<29|s>>>3,f[i+2|0]=((_&65535)<<16|n>>>16)&31|s<<5,n=e&2097151,e=T(G,S,654183,0)+n|0,_=c,_=n>>>0>e>>>0?_+1|0:_,n=A,A=A>>21,n=(n&2097151)<<11|s>>>21,e=n+e|0,r=A+_|0,r=n>>>0>e>>>0?r+1|0:r,n=r,f[i+6|0]=(r&63)<<26|e>>>6,f[i+5|0]=e<<2|(s&1572864)>>>19,A=Q&2097151,_=T(G,S,-997805,-1)+A|0,r=c,r=A>>>0>_>>>0?r+1|0:r,A=n>>21,s=_,_=(n&2097151)<<11|e>>>21,n=s+_|0,A=A+r|0,A=n>>>0<_>>>0?A+1|0:A,f[i+9|0]=(A&511)<<23|n>>>9,f[i+8|0]=(A&1)<<31|n>>>1,f[i+7|0]=n<<7|(e&2080768)>>>14,e=Y&2097151,r=T(G,S,136657,0)+e|0,_=c,_=e>>>0>r>>>0?_+1|0:_,e=A,A=A>>21,s=(e&2097151)<<11|n>>>21,e=s+r|0,r=A+_|0,r=e>>>0<s>>>0?r+1|0:r,f[i+12|0]=(r&4095)<<20|e>>>12,f[i+11|0]=(r&15)<<28|e>>>4,f[i+10|0]=e<<4|(n&1966080)>>>17,n=g&2097151,_=T(G,S,-683901,-1)+n|0,A=c,A=n>>>0>_>>>0?A+1|0:A,n=r,r=r>>21,s=_,_=(n&2097151)<<11|e>>>21,n=s+_|0,r=A+r|0,r=n>>>0<_>>>0?r+1|0:r,f[i+14|0]=(r&127)<<25|n>>>7,f[i+13|0]=n<<1|(e&1048576)>>>20,A=r>>21,r=(r&2097151)<<11|n>>>21,e=r+(B&2097151)|0,A=e>>>0<r>>>0?A+1|0:A,f[i+17|0]=(A&1023)<<22|e>>>10,f[i+16|0]=(A&3)<<30|e>>>2,f[i+15|0]=e<<6|(n&2064384)>>>15,n=A,A=A>>21,r=(n&2097151)<<11|e>>>21,n=r+(w&2097151)|0,_=n>>>0<r>>>0?A+1|0:A,f[i+20|0]=(_&8191)<<19|n>>>13,f[i+19|0]=(_&31)<<27|n>>>5,s=(_&2097151)<<11|n>>>21,A=s+(a&2097151)|0,r=_>>21,r=A>>>0<s>>>0?r+1|0:r,s=A,f[i+21|0]=A,f[i+18|0]=n<<3|(e&1835008)>>>18,f[i+22|0]=(r&255)<<24|A>>>8,e=(r&2097151)<<11|A>>>21,n=e+(v&2097151)|0,A=r>>21,A=n>>>0<e>>>0?A+1|0:A,f[i+25|0]=(A&2047)<<21|n>>>11,f[i+24|0]=(A&7)<<29|n>>>3,f[i+23|0]=((r&65535)<<16|s>>>16)&31|n<<5,r=(A&2097151)<<11|n>>>21,e=r+(u&2097151)|0,A=A>>21,A=e>>>0<r>>>0?A+1|0:A,f[i+27|0]=(A&63)<<26|e>>>6,f[i+26|0]=e<<2|(n&1572864)>>>19,n=A,A=A>>21,s=(n&2097151)<<11|e>>>21,_=I&2097151,n=s+_|0,r=A,r=n>>>0<_>>>0?r+1|0:r,f[i+31|0]=(r&131071)<<15|n>>>17,f[i+30|0]=(r&511)<<23|n>>>9,f[i+28|0]=n<<7|(e&2080768)>>>14,f[i+29|0]=s+I>>>1}function Bn(i,n,e,r){for(var A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0,z=0,$=0,V=0,W=0,e0=0,i0=0,o0=0,s0=0,h0=0,u0=0,y0=0,f0=0,B0=0,c0=0,j0=0,d0=0,w0=0,T0=0,P0=0,I0=0,M0=0,L0=0,E0=0,R0=0;A=a<<3,s=A+e|0,A=n+A|0,_=o[A|0]|o[A+1|0]<<8|(o[A+2|0]<<16|o[A+3|0]<<24),N=o[A+4|0]|o[A+5|0]<<8|(o[A+6|0]<<16|o[A+7|0]<<24),v=_<<24|(_&65280)<<8,h=_&16711680,S=h<<24,h=h>>>8|0,u=_&-16777216,A=u>>>24|0,t[s>>2]=S|u<<8|(((N&255)<<24|_>>>8)&-16777216|((N&16777215)<<8|_>>>24)&16711680|(N>>>8&65280|N>>>24)),A=A|h|v,t[s+4>>2]=A,a=a+1|0,(a|0)!=16;);for(n=t[i+60>>2],t[r+56>>2]=t[i+56>>2],t[r+60>>2]=n,n=t[i+52>>2],t[r+48>>2]=t[i+48>>2],t[r+52>>2]=n,n=t[i+44>>2],t[r+40>>2]=t[i+40>>2],t[r+44>>2]=n,n=t[i+36>>2],t[r+32>>2]=t[i+32>>2],t[r+36>>2]=n,n=t[i+28>>2],t[r+24>>2]=t[i+24>>2],t[r+28>>2]=n,n=t[i+20>>2],t[r+16>>2]=t[i+16>>2],t[r+20>>2]=n,n=t[i+12>>2],t[r+8>>2]=t[i+8>>2],t[r+12>>2]=n,n=t[i+4>>2],t[r>>2]=t[i>>2],t[r+4>>2]=n;;){if(s=t[r+56>>2],h=t[r+60>>2],$=y0<<3,N=$+e|0,n=N,A=t[n>>2],n=t[n+4>>2],_=t[r+36>>2],M=_,g=t[r+32>>2],_=x(g,_,50),a=c,_=x(g,M,46)^_,a=c^a,_=x(g,M,23)^_,A=_+A|0,n=(c^a)+n|0,n=A>>>0<_>>>0?n+1|0:n,_=$+38512|0,a=t[_>>2],A=a+A|0,n=t[_+4>>2]+n|0,n=A>>>0<a>>>0?n+1|0:n,S=t[r+48>>2],G=t[r+40>>2],a=(S^G)&g^S,_=a+A|0,D=t[r+52>>2],w=t[r+44>>2],A=((D^w)&M^D)+n|0,n=(_>>>0<a>>>0?A+1|0:A)+h|0,s=_+s|0,n=s>>>0<_>>>0?n+1|0:n,_=t[r+24>>2],a=_+s|0,A=t[r+28>>2]+n|0,A=_>>>0>a>>>0?A+1|0:A,K=A,t[r+24>>2]=a,t[r+28>>2]=A,A=t[r+4>>2],Q=A,_=t[r>>2],A=x(_,A,36),h=c,A=x(_,Q,30)^A,h=c^h,u=s+(x(_,Q,25)^A)|0,A=n+(c^h)|0,A=s>>>0>u>>>0?A+1|0:A,n=u,h=t[r+16>>2],s=t[r+8>>2],u=_&(h|s)|s&h,v=n+u|0,n=A,A=t[r+20>>2],B=t[r+12>>2],n=n+(Q&(A|B)|A&B)|0,n=u>>>0>v>>>0?n+1|0:n,u=n,t[r+56>>2]=v,t[r+60>>2]=n,q=h,I=A,Y=$|8,V=Y+e|0,n=V,z=t[n>>2],i0=t[n+4>>2],h=(g^G)&a^G,n=h+S|0,A=((M^w)&K^w)+D|0,A=n>>>0<h>>>0?A+1|0:A,h=x(a,K,50),S=c,h=x(a,K,46)^h,S=c^S,D=x(a,K,23)^h,h=D+n|0,n=(c^S)+A|0,n=(h>>>0<D>>>0?n+1|0:n)+i0|0,A=h+z|0,n=A>>>0<h>>>0?n+1|0:n,h=A,A=Y+38512|0,S=t[A>>2],h=h+S|0,A=t[A+4>>2]+n|0,n=h>>>0<S>>>0?A+1|0:A,A=n+I|0,S=h+q|0,A=S>>>0<h>>>0?A+1|0:A,D=A,t[r+16>>2]=S,t[r+20>>2]=A,n=n+((B|Q)&u|B&Q)|0,A=h+((_|s)&v|_&s)|0,n=A>>>0<h>>>0?n+1|0:n,h=x(v,u,36),q=c,h=x(v,u,30)^h,q=c^q,I=A,A=x(v,u,25)^h,h=I+A|0,n=(c^q)+n|0,n=A>>>0>h>>>0?n+1|0:n,q=n,t[r+48>>2]=h,t[r+52>>2]=n,I=s,Y=B,s=$|16,A=s+e|0,B=t[A>>2],n=B+G|0,A=t[A+4>>2]+w|0,A=n>>>0<B>>>0?A+1|0:A,w=n,n=s+38512|0,B=t[n>>2],s=w+B|0,n=t[n+4>>2]+A|0,n=s>>>0<B>>>0?n+1|0:n,A=s,s=(a^g)&S^g,A=A+s|0,n=((M^K)&D^M)+n|0,n=A>>>0<s>>>0?n+1|0:n,s=x(S,D,50),B=c,s=x(S,D,46)^s,B=c^B,G=x(S,D,23)^s,s=G+A|0,A=(c^B)+n|0,B=s,G=s>>>0<G>>>0?A+1|0:A,A=G+Y|0,s=s+I|0,A=B>>>0>s>>>0?A+1|0:A,Y=A,t[r+8>>2]=s,t[r+12>>2]=A,n=x(h,q,36),A=c,n=x(h,q,30)^n,A=c^A,w=x(h,q,25)^n,I=w+((_|v)&h|_&v)|0,n=((u|Q)&q|u&Q)+(c^A)|0,A=G+(I>>>0<w>>>0?n+1|0:n)|0,G=B+I|0,A=G>>>0<B>>>0?A+1|0:A,B=A,t[r+40>>2]=G,t[r+44>>2]=A,I=_,A=g,_=$|24,n=_+e|0,g=t[n>>2],A=A+g|0,n=t[n+4>>2]+M|0,n=A>>>0<g>>>0?n+1|0:n,w=A,A=_+38512|0,g=t[A>>2],_=w+g|0,A=t[A+4>>2]+n|0,A=_>>>0<g>>>0?A+1|0:A,n=_,_=a^(a^S)&s,n=n+_|0,A=(K^(D^K)&Y)+A|0,A=n>>>0<_>>>0?A+1|0:A,_=x(s,Y,50),g=c,_=x(s,Y,46)^_,g=c^g,M=x(s,Y,23)^_,_=M+n|0,n=(c^g)+A|0,n=_>>>0<M>>>0?n+1|0:n,A=n+Q|0,Q=_+I|0,A=Q>>>0<_>>>0?A+1|0:A,M=A,t[r>>2]=Q,t[r+4>>2]=A,A=x(G,B,36),g=c,A=x(G,B,30)^A,I=c^g,w=x(G,B,25)^A,g=w+((h|v)&G|h&v)|0,A=((u|q)&B|u&q)+(c^I)|0,n=n+(g>>>0<w>>>0?A+1|0:A)|0,I=_+g|0,n=I>>>0<_>>>0?n+1|0:n,g=n,t[r+32>>2]=I,t[r+36>>2]=n,n=$|32,A=n+e|0,_=t[A>>2],A=K+t[A+4>>2]|0,_=_+a|0,A=_>>>0<a>>>0?A+1|0:A,n=n+38512|0,a=t[n>>2],_=a+_|0,n=t[n+4>>2]+A|0,n=_>>>0<a>>>0?n+1|0:n,A=_,_=S^(s^S)&Q,A=A+_|0,n=(D^(D^Y)&M)+n|0,n=A>>>0<_>>>0?n+1|0:n,_=x(Q,M,50),a=c,_=x(Q,M,46)^_,a=c^a,K=x(Q,M,23)^_,_=K+A|0,A=(c^a)+n|0,A=_>>>0<K>>>0?A+1|0:A,w=A,n=A,A=x(I,g,36),a=c,A=x(I,g,30)^A,K=c^a,z=x(I,g,25)^A,a=z+((h|G)&I|h&G)|0,A=((q|B)&g|q&B)+(c^K)|0,n=(a>>>0<z>>>0?A+1|0:A)+n|0,K=_+a|0,n=K>>>0<a>>>0?n+1|0:n,a=n,t[r+24>>2]=K,t[r+28>>2]=n,A=u+w|0,u=_+v|0,A=u>>>0<_>>>0?A+1|0:A,w=A,t[r+56>>2]=u,t[r+60>>2]=A,A=$|40,n=A+e|0,_=t[n>>2],n=D+t[n+4>>2]|0,_=_+S|0,n=_>>>0<S>>>0?n+1|0:n,A=A+38512|0,v=t[A>>2],_=v+_|0,A=t[A+4>>2]+n|0,A=_>>>0<v>>>0?A+1|0:A,n=_,_=s^(s^Q)&u,n=n+_|0,A=(Y^(M^Y)&w)+A|0,A=n>>>0<_>>>0?A+1|0:A,_=x(u,w,50),v=c,_=x(u,w,46)^_,v=c^v,S=x(u,w,23)^_,_=S+n|0,n=(c^v)+A|0,n=_>>>0<S>>>0?n+1|0:n,A=x(K,a,36),v=c,A=x(K,a,30)^A,S=c^v,D=x(K,a,25)^A,v=D+((I|G)&K|I&G)|0,A=((B|g)&a|B&g)+(c^S)|0,A=(v>>>0<D>>>0?A+1|0:A)+n|0,S=_+v|0,A=S>>>0<v>>>0?A+1|0:A,v=A,t[r+16>>2]=S,t[r+20>>2]=A,n=n+q|0,A=h,h=_+h|0,n=A>>>0>h>>>0?n+1|0:n,D=n,t[r+48>>2]=h,t[r+52>>2]=n,n=$|48,A=n+e|0,_=t[A>>2],A=Y+t[A+4>>2]|0,_=_+s|0,A=_>>>0<s>>>0?A+1|0:A,n=n+38512|0,s=t[n>>2],_=s+_|0,n=t[n+4>>2]+A|0,n=_>>>0<s>>>0?n+1|0:n,A=_,_=Q^(u^Q)&h,A=A+_|0,n=(M^(M^w)&D)+n|0,n=A>>>0<_>>>0?n+1|0:n,_=x(h,D,50),s=c,_=x(h,D,46)^_,s=c^s,q=x(h,D,23)^_,_=q+A|0,A=(c^s)+n|0,A=_>>>0<q>>>0?A+1|0:A,Y=A,n=A,A=x(S,v,36),s=c,A=x(S,v,30)^A,q=c^s,z=x(S,v,25)^A,s=z+((I|K)&S|I&K)|0,A=((a|g)&v|a&g)+(c^q)|0,n=(s>>>0<z>>>0?A+1|0:A)+n|0,A=s,s=_+s|0,n=A>>>0>s>>>0?n+1|0:n,q=n,t[r+8>>2]=s,t[r+12>>2]=n,A=B+Y|0,z=_+G|0,A=z>>>0<_>>>0?A+1|0:A,Y=A,t[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-64|0,V=t[A>>2],A=t[A+4>>2],W=A,A=x(V,A,63),I=c,A=x(V,W,56)^A,e0=c^I,I=B,B=((W&127)<<25|V>>>7)^A,I=I+B|0,n=(W>>>7^e0)+n|0,n=B>>>0>I>>>0?n+1|0:n,B=n,t[N+184>>2]=I,t[N+188>>2]=n,A=v+W|0,n=Y+V|0,A=n>>>0<V>>>0?A+1|0:A,v=x(z,a,45),Y=c,v=x(z,a,3)^v,V=c^Y,v=((a&63)<<26|z>>>6)^v,Y=v+n|0,n=(a>>>6^V)+A|0,V=v>>>0>Y>>>0?n+1|0:n,n=t[N+72>>2],A=t[N+76>>2],v=x(n,A,63),W=c,e0=x(n,A,56)^v,v=A,A=A>>>7|0,n=e0^((v&127)<<25|n>>>7),Y=n+Y|0,A=(A^(c^W))+V|0,A=n>>>0>Y>>>0?A+1|0:A,v=A,t[N+192>>2]=Y,t[N+196>>2]=A,n=x(D,h0,63),A=c,V=((h0&127)<<25|D>>>7)^(x(D,h0,56)^n),D=V+L0|0,A=(c^A^h0>>>7)+E0|0,n=q+(D>>>0<V>>>0?A+1|0:A)|0,A=g+D|0,n=A>>>0<g>>>0?n+1|0:n,q=x(I,B,45),g=c,q=x(I,B,3)^q,D=c^g,q=((B&63)<<26|I>>>6)^q,g=q+A|0,A=(B>>>6^D)+n|0,A=q>>>0>g>>>0?A+1|0:A,q=A,t[N+200>>2]=g,t[N+204>>2]=A,V=t[w0>>2],A=t[w0+4>>2],n=x(s0,o0,63),D=c,n=x(s0,o0,56)^n,h0=c^D,D=w,w=((o0&127)<<25|s0>>>7)^n,D=D+w|0,n=(o0>>>7^h0)+h|0,A=(D>>>0<w>>>0?n+1|0:n)+A|0,n=D+V|0,A=n>>>0<D>>>0?A+1|0:A,h=x(Y,v,45),D=c,h=x(Y,v,3)^h,w=c^D,h=((v&63)<<26|Y>>>6)^h,D=h+n|0,A=(v>>>6^w)+A|0,A=h>>>0>D>>>0?A+1|0:A,h=A,t[N+208>>2]=D,t[N+212>>2]=A,w=t[T0>>2],V=t[T0+4>>2],n=x(c0,j0,63),A=c,s0=((j0&127)<<25|c0>>>7)^(x(c0,j0,56)^n),M=s0+M|0,n=(c^A^j0>>>7)+s|0,A=(M>>>0<s0>>>0?n+1|0:n)+V|0,n=M+w|0,A=n>>>0<M>>>0?A+1|0:A,s=x(g,q,45),M=c,w=n,n=q>>>6|0,s=((q&63)<<26|g>>>6)^(x(g,q,3)^s),q=w+s|0,A=(n^(c^M))+A|0,A=s>>>0>q>>>0?A+1|0:A,s=A,t[N+216>>2]=q,t[N+220>>2]=A,M=t[P0>>2],n=t[P0+4>>2],A=x(f0,B0,63),g=c,A=x(f0,B0,56)^A,w=c^g,W=$,$=((B0&127)<<25|f0>>>7)^A,g=W+$|0,A=(B0>>>7^w)+u|0,n=(g>>>0<$>>>0?A+1|0:A)+n|0,A=g+M|0,n=A>>>0<g>>>0?n+1|0:n,u=x(D,h,45),g=c,w=A,A=h>>>6|0,h=((h&63)<<26|D>>>6)^(x(D,h,3)^u),u=w+h|0,A=(A^(c^g))+n|0,A=h>>>0>u>>>0?A+1|0:A,h=A,t[N+224>>2]=u,t[N+228>>2]=A,D=t[I0>>2],M=t[I0+4>>2],n=x(d0,u0,63),A=c,w=((u0&127)<<25|d0>>>7)^(x(d0,u0,56)^n),g=w+z|0,A=(c^A^u0>>>7)+a|0,n=(g>>>0<w>>>0?A+1|0:A)+M|0,A=g+D|0,n=A>>>0<g>>>0?n+1|0:n,a=x(q,s,45),g=c,w=A,A=s>>>6|0,s=((s&63)<<26|q>>>6)^(x(q,s,3)^a),a=w+s|0,A=(A^(c^g))+n|0,A=s>>>0>a>>>0?A+1|0:A,s=A,t[N+232>>2]=a,t[N+236>>2]=A,n=x(Q,_,63),A=c,w=x(Q,_,56)^n,n=_>>>7|0,q=w^((_&127)<<25|Q>>>7),_=q+i0|0,n=(n^(c^A))+G|0,A=B+(_>>>0<q>>>0?n+1|0:n)|0,n=_+I|0,A=n>>>0<I>>>0?A+1|0:A,_=x(u,h,45),q=c,B=n,n=h>>>6|0,h=((h&63)<<26|u>>>6)^(x(u,h,3)^_),_=B+h|0,A=(n^(c^q))+A|0,t[N+240>>2]=_,t[N+244>>2]=_>>>0<h>>>0?A+1|0:A,h=t[M0>>2],u=t[M0+4>>2],n=x(K,S,63),A=c,n=x(K,S,56)^n,q=c^A,A=S>>>7|0,S=((S&127)<<25|K>>>7)^n,_=S+Y|0,n=(A^q)+v|0,A=(_>>>0<S>>>0?n+1|0:n)+u|0,n=_+h|0,A=n>>>0<_>>>0?A+1|0:A,_=x(a,s,45),h=c,B=n,n=s>>>6|0,s=((s&63)<<26|a>>>6)^(x(a,s,3)^_),_=B+s|0,A=(n^(c^h))+A|0,t[N+248>>2]=_,t[N+252>>2]=_>>>0<s>>>0?A+1|0:A;continue}break}A=n+t[i+4>>2]|0,n=_+t[i>>2]|0,A=n>>>0<_>>>0?A+1|0:A,t[i>>2]=n,t[i+4>>2]=A,n=t[i+12>>2]+t[r+12>>2]|0,A=t[r+8>>2],e=A+t[i+8>>2]|0,t[i+8>>2]=e,t[i+12>>2]=e>>>0<A>>>0?n+1|0:n,A=t[i+20>>2]+t[r+20>>2]|0,e=t[r+16>>2],n=e+t[i+16>>2]|0,t[i+16>>2]=n,t[i+20>>2]=n>>>0<e>>>0?A+1|0:A,A=t[i+28>>2]+t[r+28>>2]|0,e=t[r+24>>2],n=e+t[i+24>>2]|0,t[i+24>>2]=n,t[i+28>>2]=n>>>0<e>>>0?A+1|0:A,n=t[i+36>>2]+t[r+36>>2]|0,A=t[r+32>>2],e=A+t[i+32>>2]|0,t[i+32>>2]=e,t[i+36>>2]=e>>>0<A>>>0?n+1|0:n,A=t[i+44>>2]+t[r+44>>2]|0,e=t[r+40>>2],n=e+t[i+40>>2]|0,t[i+40>>2]=n,t[i+44>>2]=n>>>0<e>>>0?A+1|0:A,n=t[i+52>>2]+t[r+52>>2]|0,A=t[r+48>>2],e=A+t[i+48>>2]|0,t[i+48>>2]=e,t[i+52>>2]=e>>>0<A>>>0?n+1|0:n,A=t[i+60>>2]+t[r+60>>2]|0,e=t[r+56>>2],n=e+t[i+56>>2]|0,t[i+56>>2]=n,t[i+60>>2]=n>>>0<e>>>0?A+1|0:A}function pn(i,n){var e=0,r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0,z=0,$=0,V=0,W=0,e0=0,i0=0,o0=0,s0=0,h0=0,u0=0,y0=0,f0=0,B0=0,c0=0,j0=0,d0=0,w0=0,T0=0,P0=0,I0=0,M0=0,L0=0,E0=0,R0=0,F0=0,Q0=0,O0=0,X0=0,K0=0,z0=0,Z0=0,W0=0,b0=0,e2=0,r2=0,$0=0,V0=0;K=X-4096|0,X=K;e:{if(!i)break e;r:{t:{_=t[i+36>>2];n:{if((_|0)!=2){z0=t[i+4>>2],s=o[n+8|0],E0=t[n>>2];break n}if(z0=t[i+4>>2],E0=t[n>>2],s=o[n+8|0],E0|s>>>0>=2)break t;E0=0}if(k2(K+3072|0,0,1024),k2(K+2104|0,0,968),t[K+2048>>2]=E0,t[K+2052>>2]=0,o0=t[n+4>>2],t[K+2064>>2]=s&255,t[K+2068>>2]=0,t[K+2056>>2]=o0,t[K+2060>>2]=0,t[K+2072>>2]=t[i+16>>2],t[K+2076>>2]=0,o0=t[i+8>>2],t[K+2088>>2]=_,t[K+2092>>2]=0,t[K+2080>>2]=o0,t[K+2084>>2]=0,!t[i+20>>2])break r;for(o0=0;_=q&127,_||(c0=c0+1|0,o0=c0?o0:o0+1|0,t[K+2096>>2]=c0,t[K+2100>>2]=o0,k2(K,0,1024),D=K+1024|0,k2(D,0,1024),r=K+3072|0,p6(r,K+2048|0,K),p6(r,K,D)),_=(K+1024|0)+(_<<3)|0,D=t[_+4>>2],r=(q<<3)+z0|0,t[r>>2]=t[_>>2],t[r+4>>2]=D,D=t[i+20>>2],q=q+1|0,D>>>0>q>>>0;);break r}D=t[i+20>>2],W0=1}if(Q0=s&255,_=Q0|E0,o0=_?0:2,o0>>>0>=D>>>0)break e;for(b0=!_,_=t[i+24>>2],K0=t[n+4>>2],c0=(i2(_,K0)+o0|0)+i2(D,Q0)|0,q=c0+((c0>>>0)%(_>>>0)|0?-1:_-1|0)|0,e2=Q0+1|0;;){s=t[i+28>>2],_=t[i+24>>2],Z0=((c0>>>0)%(_>>>0)|0)==1?c0-1|0:q,q=W0?t[t[i>>2]+4>>2]+(Z0<<10)|0:(o0<<3)+z0|0,r=t[q>>2],q=t[q+4>>2],t[n+12>>2]=o0,s=b0?K0:(q>>>0)%(s>>>0)|0;r:{if(!E0){if(!Q0){q=o0-1|0,e=0;break r}if(q=i2(D,Q0),(s|0)==(K0|0)){q=(q+o0|0)-1|0,e=0;break r}q=q-!o0|0,e=0;break r}if(q=_+((s|0)==(K0|0)?(D^-1)+o0|0:(o0?0:-1)-D|0)|0,e=0,(Q0|0)==3)break r;e=i2(D,e2)}D=e,B=t[t[i>>2]+4>>2],u=B+(i2(_,s)<<10)|0,s=q-1|0,e=s+D|0,A=s>>>0>e>>>0,T(r,0,r,0),T(q,0,c,0),q=c,s=e-q|0,D=0,g=0;r:{t:{n:{A:{i:{s:{_:{l:{o:{h:{if(q=A-(e>>>0<q>>>0)|0,q){if(!_)break h;break o}Nr=s-i2((s>>>0)/(_>>>0)|0,_)|0,Fr=0,c=0;break r}if(!s)break l;break _}if(r=_-1|0,!(r&_))break s;r=(de(_)+33|0)-de(q)|0,h=0-r|0;break A}Nr=0,Fr=q,c=0;break r}if(D=32-de(q)|0,D>>>0<31)break i;break n}if(Nr=r&s,Fr=0,(_|0)==1)break t;s=Rn(_),_=s&31,(s&63)>>>0>=32?r=q>>>_|0:(D=q>>>_|0,r=0),c=D;break r}r=D+1|0,h=63-D|0}if(D=r&63,e=D&31,D>>>0>=32?(D=0,A=q>>>e|0):(D=q>>>e|0,A=((1<<e)-1&q)<<32-e|s>>>e),h=h&63,e=h&31,h>>>0>=32?(q=s<<e,s=0):(q=(1<<e)-1&s>>>32-e|q<<e,s=s<<e),r)for(h=_-1|0,a=(h|0)==-1?-1:0;w=D<<1|A>>>31,D=A<<1|q>>>31,e=a-(w+(D>>>0>h>>>0)|0)>>31,W=e&_,A=D-W|0,D=w-(D>>>0<W>>>0)|0,q=q<<1|s>>>31,s=g|s<<1,g=e&1,r=r-1|0,!!r;);Nr=A,Fr=D,c=q<<1|s>>>31;break r}Nr=s,Fr=q,q=0}c=q}c=Fr,q=(Nr<<10)+u|0,_=B+(Z0<<10)|0,D=B+(c0<<10)|0;r:{if(E0){p6(_,q,D);break r}for(_2(K+3072|0,q,1024),s=0;q=s<<3,r=K+3072|0,e=q+r|0,A=t[e>>2],B=_+q|0,g=t[B>>2],B=t[e+4>>2]^t[B+4>>2],t[e>>2]=A^g,t[e+4>>2]=B,A=q|8,e=A+r|0,B=t[e>>2],A=_+A|0,g=t[A>>2],A=t[e+4>>2]^t[A+4>>2],t[e>>2]=B^g,t[e+4>>2]=A,A=q|16,e=A+r|0,B=t[e>>2],A=_+A|0,g=t[A>>2],A=t[e+4>>2]^t[A+4>>2],t[e>>2]=B^g,t[e+4>>2]=A,e=q|24,q=e+r|0,A=t[q>>2],e=e+_|0,B=t[e>>2],e=t[q+4>>2]^t[e+4>>2],t[q>>2]=A^B,t[q+4>>2]=e,s=s+4|0,(s|0)!=128;);for(_2(K+2048|0,r,1024),q=0,s=0;_=(K+3072|0)+(s<<7)|0,B=t[_+56>>2],e=t[_+24>>2],A=B+e|0,w=t[_+60>>2],r=t[_+28>>2],g=w+r|0,u=T(e<<1&-2,(r<<1|e>>>31)&1,B,0),r=u+A|0,e=c+(e>>>0>A>>>0?g+1|0:g)|0,g=r>>>0<u>>>0?e+1|0:e,u=x(r^t[_+120>>2],g^t[_+124>>2],32),e=t[_+88>>2],h=u+e|0,M=c,A=t[_+92>>2],a=M+A|0,W=T(u,0,e<<1&-2,(A<<1|e>>>31)&1),A=W+h|0,e=c+(e>>>0>h>>>0?a+1|0:a)|0,h0=A>>>0<W>>>0?e+1|0:e,V=x(B^A,w^h0,40),O0=c,e=g+O0|0,a=e+1|0,v=e,e=r+V|0,B=e>>>0<r>>>0?a:v,r=T(V,0,r<<1&-2,(g<<1|r>>>31)&1),W=r+e|0,e=c+B|0,d0=r>>>0>W>>>0?e+1|0:e,M=x(W^u,M^d0,48),v=c,z=v,I=t[_+44>>2],r=t[_+12>>2],B=I+r|0,g=t[_+40>>2],e=t[_+8>>2],u=g+e|0,h=T(e<<1&-2,(r<<1|e>>>31)&1,g,0),r=u+h|0,e=c+(e>>>0>u>>>0?B+1|0:B)|0,h=r>>>0<h>>>0?e+1|0:e,a=x(r^t[_+104>>2],h^t[_+108>>2],32),B=t[_+72>>2],u=a+B|0,Y=c,e=t[_+76>>2],w=Y+e|0,S=T(a,0,B<<1&-2,(e<<1|B>>>31)&1),e=S+u|0,G=g^e,B=c+(B>>>0>u>>>0?w+1|0:w)|0,g=e>>>0<S>>>0?B+1|0:B,u=x(G,I^g,40),w=c,B=h+w|0,I=B+1|0,S=B,B=r+u|0,I=B>>>0<r>>>0?I:S,r=T(u,0,r<<1&-2,(h<<1|r>>>31)&1),B=r+B|0,h=c+I|0,w0=r>>>0>B>>>0?h+1|0:h,I=x(B^a,Y^w0,48),X0=c,r=g+X0|0,S=r+1|0,a=r,r=e+I|0,h=r>>>0<e>>>0?S:a,e=T(I,0,e<<1&-2,(g<<1|e>>>31)&1),g=r+e|0,r=c+h|0,P0=e>>>0>g>>>0?r+1|0:r,Y=x(u^g,w^P0,1),G=c,R0=G,$=t[_+36>>2],r=t[_+4>>2],u=$+r|0,h=t[_+32>>2],e=t[_>>2],a=h+e|0,w=T(e<<1&-2,(r<<1|e>>>31)&1,h,0),r=a+w|0,e=c+(e>>>0>a>>>0?u+1|0:u)|0,a=r>>>0<w>>>0?e+1|0:e,B0=x(r^t[_+96>>2],a^t[_+100>>2],32),j0=_- 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-1048576|0,_=(n&2097151)<<11|s>>>21,Y=_+N|0,n=(n>>21)+D|0,_=_>>>0>Y>>>0?n+1|0:n,n=T(G,q,470296,0),r=r+c|0,e=n+B|0,r=e>>>0<B>>>0?r+1|0:r,n=s&-2097152,B=e-n|0,s=r-((n>>>0>e>>>0)+I|0)|0,e=T(G,q,666643,0),r=h&-2097152,D=e+(u-r|0)|0,n=c+(v-((r>>>0>u>>>0)+Q|0)|0)|0,n=e>>>0>D>>>0?n+1|0:n,r=n>>21,n=(n&2097151)<<11|D>>>21,I=n+B|0,e=r+s|0,e=n>>>0>I>>>0?e+1|0:e,n=e>>21,e=(e&2097151)<<11|I>>>21,q=e+Y|0,n=n+_|0,n=e>>>0>q>>>0?n+1|0:n,e=n>>21,n=(n&2097151)<<11|q>>>21,_=n+e0|0,e=e+$|0,e=n>>>0>_>>>0?e+1|0:e,n=e>>21,e=(e&2097151)<<11|_>>>21,u=e+V|0,r=n+a|0,r=e>>>0>u>>>0?r+1|0:r,e=r>>21,r=(r&2097151)<<11|u>>>21,B=r+c0|0,n=e+j0|0,n=r>>>0>B>>>0?n+1|0:n,r=n>>21,n=(n&2097151)<<11|B>>>21,s=n+s0|0,e=r+S|0,S=s,e=n>>>0>s>>>0?e+1|0:e,n=e>>21,e=(e&2097151)<<11|s>>>21,a=e+I0|0,n=n+M0|0,n=e>>>0>a>>>0?n+1|0:n,e=n>>21,n=(n&2097151)<<11|a>>>21,v=n+P0|0,e=e+w|0,e=n>>>0>v>>>0?e+1|0:e,n=e>>21,e=(e&2097151)<<11|v>>>21,h=e+E0|0,r=n+R0|0,r=e>>>0>h>>>0?r+1|0:r,e=r>>21,r=(r&2097151)<<11|h>>>21,s=r+L0|0,n=e+M|0,e=K&-2097152,w=A-e|0,n=r>>>0>s>>>0?n+1|0:n,K=w+((n&2097151)<<11|s>>>21)|0,n=(g-((e>>>0>A>>>0)+i0|0)|0)+(n>>21)|0,n=w>>>0>K>>>0?n+1|0:n,M=(n&2097151)<<11|K>>>21,e=n>>21,g=e,n=T(M,e,666643,0),e=D&2097151,D=n+e|0,n=c,n=e>>>0>D>>>0?n+1|0:n,A=n,f[i|0]=D,f[i+1|0]=(n&255)<<24|D>>>8,n=I&2097151,e=T(M,g,470296,0)+n|0,r=c,w=(A&2097151)<<11|D>>>21,I=w+e|0,n=(A>>21)+(n>>>0>e>>>0?r+1|0:r)|0,n=w>>>0>I>>>0?n+1|0:n,f[i+4|0]=(n&2047)<<21|I>>>11,e=n,r=I,f[i+3|0]=(n&7)<<29|r>>>3,f[i+2|0]=((A&65535)<<16|D>>>16)&31|r<<5,A=q&2097151,q=T(M,g,654183,0)+A|0,n=c,A=A>>>0>q>>>0?n+1|0:n,I=(e&2097151)<<11|r>>>21,q=I+q|0,e=(e>>21)+A|0,e=q>>>0<I>>>0?e+1|0:e,n=e,f[i+6|0]=(n&63)<<26|q>>>6,A=q,f[i+5|0]=A<<2|(r&1572864)>>>19,r=_&2097151,_=T(M,g,-997805,-1)+r|0,e=c,e=r>>>0>_>>>0?e+1|0:e,r=n,n=n>>21,q=(r&2097151)<<11|A>>>21,_=q+_|0,r=n+e|0,r=_>>>0<q>>>0?r+1|0:r,f[i+9|0]=(r&511)<<23|_>>>9,f[i+8|0]=(r&1)<<31|_>>>1,f[i+7|0]=_<<7|(A&2080768)>>>14,e=u&2097151,A=T(M,g,136657,0)+e|0,n=c,n=e>>>0>A>>>0?n+1|0:n,e=r,r=e>>21,u=(e&2097151)<<11|_>>>21,A=u+A|0,e=n+r|0,e=A>>>0<u>>>0?e+1|0:e,f[i+12|0]=(e&4095)<<20|A>>>12,r=A,f[i+11|0]=(e&15)<<28|r>>>4,f[i+10|0]=r<<4|(_&1966080)>>>17,A=B&2097151,_=T(M,g,-683901,-1)+A|0,n=c,n=A>>>0>_>>>0?n+1|0:n,A=e,e=e>>21,N=_,_=(A&2097151)<<11|r>>>21,A=N+_|0,e=n+e|0,e=A>>>0<_>>>0?e+1|0:e,f[i+14|0]=(e&127)<<25|A>>>7,f[i+13|0]=A<<1|(r&1048576)>>>20,n=e>>21,e=(e&2097151)<<11|A>>>21,_=e+(S&2097151)|0,r=e>>>0>_>>>0?n+1|0:n,f[i+17|0]=(r&1023)<<22|_>>>10,f[i+16|0]=(r&3)<<30|_>>>2,f[i+15|0]=_<<6|(A&2064384)>>>15,n=r>>21,e=(r&2097151)<<11|_>>>21,r=e+(a&2097151)|0,n=e>>>0>r>>>0?n+1|0:n,f[i+20|0]=(n&8191)<<19|r>>>13,f[i+19|0]=(n&31)<<27|r>>>5,e=v&2097151,v=(n&2097151)<<11|r>>>21,A=e+v|0,e=n>>21,e=A>>>0<v>>>0?e+1|0:e,v=A,f[i+21|0]=A,f[i+18|0]=r<<3|(_&1835008)>>>18,f[i+22|0]=(e&255)<<24|A>>>8,_=(e&2097151)<<11|A>>>21,A=_+(h&2097151)|0,r=e>>21,r=A>>>0<_>>>0?r+1|0:r,f[i+25|0]=(r&2047)<<21|A>>>11,f[i+24|0]=(r&7)<<29|A>>>3,f[i+23|0]=((e&65535)<<16|v>>>16)&31|A<<5,n=r>>21,e=(r&2097151)<<11|A>>>21,r=e+(s&2097151)|0,n=e>>>0>r>>>0?n+1|0:n,f[i+27|0]=(n&63)<<26|r>>>6,f[i+26|0]=r<<2|(A&1572864)>>>19,e=n,n=n>>21,s=(e&2097151)<<11|r>>>21,_=K&2097151,A=s+_|0,e=A>>>0<_>>>0?n+1|0:n,f[i+31|0]=(e&131071)<<15|A>>>17,n=A,f[i+30|0]=(e&511)<<23|n>>>9,f[i+28|0]=n<<7|(r&2080768)>>>14,f[i+29|0]=s+K>>>1}function p6(i,n,e){var r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0,z=0,$=0,V=0,W=0,e0=0,i0=0,o0=0,s0=0,h0=0,u0=0,y0=0,f0=0,B0=0,c0=0,j0=0,d0=0,w0=0,T0=0,P0=0,I0=0,M0=0,L0=0,E0=0,R0=0;for(V=X-2048|0,X=V,_2(V+1024|0,n,1024),n=0;_=V+1024|0,r=n<<3,A=_+r|0,u=t[A>>2],s=i+r|0,B=t[s>>2],s=t[A+4>>2]^t[s+4>>2],t[A>>2]=u^B,t[A+4>>2]=s,u=r|8,A=u+_|0,s=t[A>>2],u=i+u|0,B=t[u>>2],u=t[A+4>>2]^t[u+4>>2],t[A>>2]=s^B,t[A+4>>2]=u,u=r|16,A=u+_|0,s=t[A>>2],u=i+u|0,B=t[u>>2],u=t[A+4>>2]^t[u+4>>2],t[A>>2]=s^B,t[A+4>>2]=u,A=r|24,r=A+_|0,u=t[r>>2],A=i+A|0,s=t[A>>2],A=t[r+4>>2]^t[A+4>>2],t[r>>2]=s^u,t[r+4>>2]=A,n=n+4|0,(n|0)!=128;);for(_2(V,_,1024),i=0,n=0;_=n<<3,r=_+V|0,A=t[r>>2],u=e+_|0,s=t[u>>2],u=t[r+4>>2]^t[u+4>>2],t[r>>2]=s^A,t[r+4>>2]=u,A=_|8,r=A+V|0,u=t[r>>2],A=e+A|0,s=t[A>>2],A=t[r+4>>2]^t[A+4>>2],t[r>>2]=s^u,t[r+4>>2]=A,A=_|16,r=A+V|0,u=t[r>>2],A=e+A|0,s=t[A>>2],A=t[r+4>>2]^t[A+4>>2],t[r>>2]=s^u,t[r+4>>2]=A,r=_|24,_=r+V|0,A=t[_>>2],r=e+r|0,u=t[r>>2],r=t[_+4>>2]^t[r+4>>2],t[_>>2]=A^u,t[_+4>>2]=r,n=n+4|0,(n|0)!=128;);for(;_=(V+1024|0)+(i<<7)|0,s=t[_+56>>2],r=t[_+24>>2],B=s+r|0,a=t[_+60>>2],A=t[_+28>>2],n=a+A|0,u=r>>>0>B>>>0?n+1|0:n,A=T(r<<1&-2,(A<<1|r>>>31)&1,s,0),r=A+B|0,n=c+u|0,u=r>>>0<A>>>0?n+1|0:n,B=x(t[_+120>>2]^r,u^t[_+124>>2],32),A=t[_+88>>2],g=B+A|0,q=c,h=t[_+92>>2],n=q+h|0,v=A>>>0>g>>>0?n+1|0:n,h=T(A<<1&-2,(h<<1|A>>>31)&1,B,0),A=h+g|0,n=c+v|0,w=A>>>0<h>>>0?n+1|0:n,f0=x(s^A,a^w,40),P0=c,n=u+P0|0,h=r+f0|0,s=h>>>0<r>>>0?n+1|0:n,r=T(f0,0,r<<1&-2,(u<<1|r>>>31)&1),h0=r+h|0,n=c+s|0,B0=r>>>0>h0>>>0?n+1|0:n,W=x(B^h0,q^B0,48),n=c,I0=n,S=W,g=n,B=t[_+40>>2],r=t[_+8>>2],h=B+r|0,e0=t[_+44>>2],u=t[_+12>>2],n=e0+u|0,s=r>>>0>h>>>0?n+1|0:n,u=T(r<<1&-2,(u<<1|r>>>31)&1,B,0),r=u+h|0,n=c+s|0,s=r>>>0<u>>>0?n+1|0:n,h=x(t[_+104>>2]^r,s^t[_+108>>2],32),u=t[_+72>>2],q=h+u|0,M=c,v=t[_+76>>2],n=M+v|0,a=u>>>0>q>>>0?n+1|0:n,v=T(u<<1&-2,(v<<1|u>>>31)&1,h,0),u=v+q|0,n=c+a|0,a=u^B,B=u>>>0<v>>>0?n+1|0:n,v=x(a,e0^B,40),D=c,n=s+D|0,q=r+v|0,a=q>>>0<r>>>0?n+1|0:n,s=T(v,0,r<<1&-2,(s<<1|r>>>31)&1),r=s+q|0,n=c+a|0,q=r>>>0<s>>>0?n+1|0:n,c0=x(r^h,M^q,48),j0=c,n=B+j0|0,h=u+c0|0,s=h>>>0<u>>>0?n+1|0:n,B=T(c0,0,u<<1&-2,(B<<1|u>>>31)&1),u=B+h|0,n=c+s|0,e0=u>>>0<B>>>0?n+1|0:n,G=x(u^v,D^e0,1),n=c,d0=n,Y=G,a=n,v=t[_+32>>2],s=t[_>>2],M=v+s|0,i0=t[_+36>>2],B=t[_+4>>2],n=i0+B|0,h=s>>>0>M>>>0?n+1|0:n,B=T(s<<1&-2,(B<<1|s>>>31)&1,v,0),s=B+M|0,n=c+h|0,h=s>>>0<B>>>0?n+1|0:n,o0=x(t[_+96>>2]^s,h^t[_+100>>2],32),N=_- 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v+s|0,i0=t[_+260>>2],B=t[_+4>>2],n=i0+B|0,h=s>>>0>M>>>0?n+1|0:n,B=T(s<<1&-2,(B<<1|s>>>31)&1,v,0),s=B+M|0,n=c+h|0,h=s>>>0<B>>>0?n+1|0:n,o0=x(t[_+768>>2]^s,h^t[_+772>>2],32),B=t[_+512>>2],I=o0+B|0,d0=c,M=t[_+516>>2],n=d0+M|0,D=B>>>0>I>>>0?n+1|0:n,M=T(B<<1&-2,(M<<1|B>>>31)&1,o0,0),B=M+I|0,n=c+D|0,M=B>>>0<M>>>0?n+1|0:n,i0=x(B^v,i0^M,40),T0=c,n=h+T0|0,D=s+i0|0,v=D>>>0<s>>>0?n+1|0:n,h=T(i0,0,s<<1&-2,(h<<1|s>>>31)&1),s=h+D|0,n=c+v|0,D=s>>>0<h>>>0?n+1|0:n,n=D+a|0,h=s+Y|0,v=h>>>0<s>>>0?n+1|0:n,a=T(Y,0,s<<1&-2,(D<<1|s>>>31)&1),h=a+h|0,n=c+v|0,I=h>>>0<a>>>0?n+1|0:n,s0=x(h^S,I^g,32),n=c,M0=n,K=n,S=t[_+384>>2],v=t[_+128>>2],Y=S+v|0,w0=t[_+388>>2],g=t[_+132>>2],n=w0+g|0,a=v>>>0>Y>>>0?n+1|0:n,g=T(v<<1&-2,(g<<1|v>>>31)&1,S,0),v=g+Y|0,n=c+a|0,a=v>>>0<g>>>0?n+1|0:n,Y=x(t[_+896>>2]^v,a^t[_+900>>2],32),g=t[_+640>>2],N=Y+g|0,u0=c,z=t[_+644>>2],n=u0+z|0,$=g>>>0>N>>>0?n+1|0:n,z=T(g<<1&-2,(z<<1|g>>>31)&1,Y,0),g=z+N|0,n=c+$|0,N=g^S,S=g>>>0<z>>>0?n+1|0:n,z=x(N,w0^S,40),w0=c,n=a+w0|0,N=v+z|0,$=N>>>0<v>>>0?n+1|0:n,a=T(z,0,v<<1&-2,(a<<1|v>>>31)&1),v=a+N|0,n=c+$|0,N=v^Y,Y=a>>>0>v>>>0?n+1|0:n,$=x(N,u0^Y,48),u0=c,n=S+u0|0,N=g+$|0,a=N>>>0<g>>>0?n+1|0:n,S=T($,0,g<<1&-2,(S<<1|g>>>31)&1),g=S+N|0,n=c+a|0,S=g>>>0<S>>>0?n+1|0:n,n=S+K|0,a=g+s0|0,K=a>>>0<g>>>0?n+1|0:n,N=T(s0,0,g<<1&-2,(S<<1|g>>>31)&1),a=N+a|0,n=c+K|0,K=a^G,G=a>>>0<N>>>0?n+1|0:n,K=x(K,j0^G,40),j0=c,n=I+j0|0,y0=h+K|0,N=y0>>>0<h>>>0?n+1|0:n,I=T(K,0,h<<1&-2,(I<<1|h>>>31)&1),h=I+y0|0,n=c+N|0,t[_>>2]=h,n=h>>>0<I>>>0?n+1|0:n,t[_+4>>2]=n,h=x(h^s0,n^M0,48),t[_+904>>2]=h,n=c,t[_+908>>2]=n,n=n+G|0,s0=h+a|0,I=s0>>>0<a>>>0?n+1|0:n,a=T(h,0,a<<1&-2,(G<<1|a>>>31)&1),h=a+s0|0,n=c+I|0,t[_+640>>2]=h,n=h>>>0<a>>>0?n+1|0:n,t[_+644>>2]=n,E0=_,R0=x(h^K,n^j0,1),t[E0+264>>2]=R0,t[_+268>>2]=c,n=w+P0|0,a=A+W|0,h=a>>>0<A>>>0?n+1|0:n,A=T(W,0,A<<1&-2,(w<<1|A>>>31)&1),a=A+a|0,n=c+h|0,n=A>>>0>a>>>0?n+1|0:n,h=n,A=n,g=x(g^z,S^w0,1),S=c,n=q+S|0,I=r+g|0,w=I>>>0<r>>>0?n+1|0:n,q=T(g,0,r<<1&-2,(q<<1|r>>>31)&1),r=q+I|0,n=c+w|0,n=r>>>0<q>>>0?n+1|0:n,q=x(s^o0,D^d0,48),s=n,G=c,w=x(q^r,n^G,32),I=w+a|0,W=c,n=W+A|0,D=w>>>0>I>>>0?n+1|0:n,n=I,I=T(a<<1&-2,(A<<1|a>>>31)&1,w,0),A=n+I|0,n=c+D|0,D=A^g,g=A>>>0<I>>>0?n+1|0:n,D=x(D,S^g,40),S=c,n=s+S|0,o0=r+D|0,I=o0>>>0<r>>>0?n+1|0:n,r=T(D,0,r<<1&-2,(s<<1|r>>>31)&1),s=r+o0|0,n=c+I|0,n=r>>>0>s>>>0?n+1|0:n,r=x(s^w,W^n,48),t[_+768>>2]=r,w=c,t[_+772>>2]=w,t[_+8>>2]=s,t[_+12>>2]=n,n=g+w|0,w=r+A|0,s=w>>>0<A>>>0?n+1|0:n,A=T(r,0,A<<1&-2,(g<<1|A>>>31)&1),r=A+w|0,n=c+s|0,t[_+648>>2]=r,n=r>>>0<A>>>0?n+1|0:n,t[_+652>>2]=n,E0=_,R0=x(r^D,n^S,1),t[E0+384>>2]=R0,t[_+388>>2]=c,g=x(a^f0,h^Q,1),w=c,n=Y+w|0,r=v+g|0,A=r>>>0<v>>>0?n+1|0:n,s=T(g,0,v<<1&-2,(Y<<1|v>>>31)&1),r=s+r|0,n=c+A|0,h=r>>>0<s>>>0?n+1|0:n,a=x(r^c0,I0^h,32),n=c,D=n,s=n,n=M+G|0,A=B+q|0,v=A>>>0<B>>>0?n+1|0:n,B=T(q,0,B<<1&-2,(M<<1|B>>>31)&1),A=B+A|0,n=c+v|0,B=A>>>0<B>>>0?n+1|0:n,n=B+s|0,s=A+a|0,v=s>>>0<A>>>0?n+1|0:n,q=T(a,0,A<<1&-2,(B<<1|A>>>31)&1),s=q+s|0,n=c+v|0,v=s>>>0<q>>>0?n+1|0:n,g=x(s^g,w^v,40),q=c,n=h+q|0,M=r+g|0,w=M>>>0<r>>>0?n+1|0:n,r=T(g,0,r<<1&-2,(h<<1|r>>>31)&1),h=r+M|0,n=c+w|0,n=r>>>0>h>>>0?n+1|0:n,r=x(h^a,D^n,48),t[_+776>>2]=r,a=c,t[_+780>>2]=a,t[_+128>>2]=h,t[_+132>>2]=n,n=a+v|0,a=r+s|0,h=a>>>0<s>>>0?n+1|0:n,s=T(r,0,s<<1&-2,(v<<1|s>>>31)&1),r=s+a|0,n=c+h|0,t[_+512>>2]=r,n=r>>>0<s>>>0?n+1|0:n,t[_+516>>2]=n,E0=_,R0=x(r^g,n^q,1),t[E0+392>>2]=R0,t[_+396>>2]=c,s=x(A^i0,B^T0,1),r=s+h0|0,v=c,n=v+B0|0,A=r>>>0<s>>>0?n+1|0:n,B=T(h0<<1&-2,(B0<<1|h0>>>31)&1,s,0),r=B+r|0,n=c+A|0,A=r>>>0<B>>>0?n+1|0:n,B=x(r^$,u0^A,32),g=c,n=e0+g|0,a=u+B|0,h=a>>>0<u>>>0?n+1|0:n,n=a,a=T(B,0,u<<1&-2,(e0<<1|u>>>31)&1),u=n+a|0,n=c+h|0,h=s^u,s=a>>>0>u>>>0?n+1|0:n,h=x(h,v^s,40),a=c,n=A+a|0,w=r+h|0,v=w>>>0<r>>>0?n+1|0:n,r=T(h,0,r<<1&-2,(A<<1|r>>>31)&1),A=r+w|0,n=c+v|0,n=r>>>0>A>>>0?n+1|0:n,r=x(A^B,g^n,48),t[_+896>>2]=r,B=c,t[_+900>>2]=B,t[_+136>>2]=A,t[_+140>>2]=n,n=s+B|0,B=r+u|0,A=B>>>0<r>>>0?n+1|0:n,u=T(r,0,u<<1&-2,(s<<1|u>>>31)&1),r=u+B|0,n=c+A|0,t[_+520>>2]=r,n=r>>>0<u>>>0?n+1|0:n,t[_+524>>2]=n,E0=_,R0=x(r^h,n^a,1),t[E0+256>>2]=R0,t[_+260>>2]=c,i=i+1|0,(i|0)!=8;);for(_2(e,V,1024),i=0;n=i<<3,_=n+e|0,r=t[_>>2],a=V+1024|0,A=a,u=A+n|0,s=t[u>>2],u=t[_+4>>2]^t[u+4>>2],t[_>>2]=r^s,t[_+4>>2]=u,r=n|8,_=r+e|0,u=t[_>>2],r=r+A|0,A=t[r>>2],r=t[_+4>>2]^t[r+4>>2],t[_>>2]=A^u,t[_+4>>2]=r,r=n|16,_=r+e|0,A=t[_>>2],r=r+a|0,u=t[r>>2],r=t[_+4>>2]^t[r+4>>2],t[_>>2]=A^u,t[_+4>>2]=r,_=n|24,n=_+e|0,r=t[n>>2],_=_+a|0,A=t[_>>2],_=t[n+4>>2]^t[_+4>>2],t[n>>2]=r^A,t[n+4>>2]=_,i=i+4|0,(i|0)!=128;);X=V+2048|0}function Ti(i,n,e){var r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0;for(r=X-800|0,X=r,s=o[n+4|0]|o[n+5|0]<<8|(o[n+6|0]<<16|o[n+7|0]<<24),a=o[n+8|0]|o[n+9|0]<<8|(o[n+10|0]<<16|o[n+11|0]<<24),u=o[n+12|0]|o[n+13|0]<<8|(o[n+14|0]<<16|o[n+15|0]<<24),B=o[n+16|0]|o[n+17|0]<<8|(o[n+18|0]<<16|o[n+19|0]<<24),v=o[n+20|0]|o[n+21|0]<<8|(o[n+22|0]<<16|o[n+23|0]<<24),g=o[n+24|0]|o[n+25|0]<<8|(o[n+26|0]<<16|o[n+27|0]<<24),w=o[n+28|0]|o[n+29|0]<<8|(o[n+30|0]<<16|o[n+31|0]<<24),S=o[i+4|0]|o[i+5|0]<<8|(o[i+6|0]<<16|o[i+7|0]<<24),I=o[i+8|0]|o[i+9|0]<<8|(o[i+10|0]<<16|o[i+11|0]<<24),D=o[i+12|0]|o[i+13|0]<<8|(o[i+14|0]<<16|o[i+15|0]<<24),M=o[i+16|0]|o[i+17|0]<<8|(o[i+18|0]<<16|o[i+19|0]<<24),Y=o[i+20|0]|o[i+21|0]<<8|(o[i+22|0]<<16|o[i+23|0]<<24),N=o[i+24|0]|o[i+25|0]<<8|(o[i+26|0]<<16|o[i+27|0]<<24),Q=o[i+28|0]|o[i+29|0]<<8|(o[i+30|0]<<16|o[i+31|0]<<24),q=o[n|0]|o[n+1|0]<<8|(o[n+2|0]<<16|o[n+3|0]<<24),n=e- -64|0,G=o[i|0]|o[i+1|0]<<8|(o[i+2|0]<<16|o[i+3|0]<<24),t[n>>2]=G^33620224,t[e+56>>2]=1496785429,t[e+60>>2]=1652156816,t[e+48>>2]=33620224,t[e+52>>2]=218629379,t[e+40>>2]=1110511904,t[e+44>>2]=-584534669,t[e+32>>2]=1427652059,t[e+36>>2]=-248528275,q=q^G,t[e>>2]=q,t[e+92>>2]=Q^-584534669,t[e+88>>2]=N^1110511904,t[e+84>>2]=Y^-248528275,t[e+80>>2]=M^1427652059,t[e+76>>2]=D^1652156816,t[e+72>>2]=I^1496785429,t[e+68>>2]=S^218629379,w=w^Q,t[e+28>>2]=w,g=g^N,t[e+24>>2]=g,v=v^Y,t[e+20>>2]=v,B=B^M,t[e+16>>2]=B,u=u^D,t[e+12>>2]=u,a=a^I,t[e+8>>2]=a,K=s^S,t[e+4>>2]=K,s=0;i=t[e+92>>2],t[r+792>>2]=t[e+88>>2],t[r+796>>2]=i,i=t[e+84>>2],t[r+784>>2]=t[e+80>>2],t[r+788>>2]=i,i=t[n+4>>2],t[r+752>>2]=t[n>>2],t[r+756>>2]=i,i=t[n+12>>2],t[r+760>>2]=t[n+8>>2],t[r+764>>2]=i,i=t[e+84>>2],t[r+736>>2]=t[e+80>>2],t[r+740>>2]=i,i=t[e+92>>2],t[r+744>>2]=t[e+88>>2],t[r+748>>2]=i,i=r+768|0,H0(i,r+752|0,r+736|0),A=t[r+780>>2],t[e+88>>2]=t[r+776>>2],t[e+92>>2]=A,A=t[r+772>>2],t[e+80>>2]=t[r+768>>2],t[e+84>>2]=A,A=t[e+52>>2],t[r+720>>2]=t[e+48>>2],t[r+724>>2]=A,A=t[e+60>>2],t[r+728>>2]=t[e+56>>2],t[r+732>>2]=A,A=t[n+4>>2],t[r+704>>2]=t[n>>2],t[r+708>>2]=A,A=t[n+12>>2],t[r+712>>2]=t[n+8>>2],t[r+716>>2]=A,H0(i,r+720|0,r+704|0),A=t[r+780>>2],t[n+8>>2]=t[r+776>>2],t[n+12>>2]=A,A=t[r+772>>2],t[n>>2]=t[r+768>>2],t[n+4>>2]=A,A=t[e+36>>2],t[r+688>>2]=t[e+32>>2],t[r+692>>2]=A,A=t[e+44>>2],t[r+696>>2]=t[e+40>>2],t[r+700>>2]=A,A=t[e+52>>2],t[r+672>>2]=t[e+48>>2],t[r+676>>2]=A,A=t[e+60>>2],t[r+680>>2]=t[e+56>>2],t[r+684>>2]=A,H0(i,r+688|0,r+672|0),A=t[r+780>>2],t[e+56>>2]=t[r+776>>2],t[e+60>>2]=A,A=t[r+772>>2],t[e+48>>2]=t[r+768>>2],t[e+52>>2]=A,A=t[e+20>>2],t[r+656>>2]=t[e+16>>2],t[r+660>>2]=A,A=t[e+28>>2],t[r+664>>2]=t[e+24>>2],t[r+668>>2]=A,A=t[e+36>>2],t[r+640>>2]=t[e+32>>2],t[r+644>>2]=A,A=t[e+44>>2],t[r+648>>2]=t[e+40>>2],t[r+652>>2]=A,H0(i,r+656|0,r+640|0),A=t[r+780>>2],t[e+40>>2]=t[r+776>>2],t[e+44>>2]=A,A=t[r+772>>2],t[e+32>>2]=t[r+768>>2],t[e+36>>2]=A,A=t[e+4>>2],t[r+624>>2]=t[e>>2],t[r+628>>2]=A,A=t[e+12>>2],t[r+632>>2]=t[e+8>>2],t[r+636>>2]=A,A=t[e+20>>2],t[r+608>>2]=t[e+16>>2],t[r+612>>2]=A,A=t[e+28>>2],t[r+616>>2]=t[e+24>>2],t[r+620>>2]=A,H0(i,r+624|0,r+608|0),A=t[r+780>>2],t[e+24>>2]=t[r+776>>2],t[e+28>>2]=A,A=t[r+772>>2],t[e+16>>2]=t[r+768>>2],t[e+20>>2]=A,A=t[r+788>>2],t[r+592>>2]=t[r+784>>2],t[r+596>>2]=A,A=t[r+796>>2],t[r+600>>2]=t[r+792>>2],t[r+604>>2]=A,A=t[e+4>>2],t[r+576>>2]=t[e>>2],t[r+580>>2]=A,A=t[e+12>>2],t[r+584>>2]=t[e+8>>2],t[r+588>>2]=A,H0(i,r+592|0,r+576|0),A=t[r+768>>2],_=t[r+772>>2],h=t[r+776>>2],t[e+12>>2]=t[r+780>>2]^D,t[e+8>>2]=h^I,t[e+4>>2]=_^S,t[e>>2]=A^G,A=t[e+92>>2],t[r+792>>2]=t[e+88>>2],t[r+796>>2]=A,A=t[e+84>>2],t[r+784>>2]=t[e+80>>2],t[r+788>>2]=A,A=t[n+4>>2],t[r+560>>2]=t[n>>2],t[r+564>>2]=A,A=t[n+12>>2],t[r+568>>2]=t[n+8>>2],t[r+572>>2]=A,A=t[e+92>>2],t[r+552>>2]=t[e+88>>2],t[r+556>>2]=A,A=t[e+84>>2],t[r+544>>2]=t[e+80>>2],t[r+548>>2]=A,H0(i,r+560|0,r+544|0),A=t[r+780>>2],t[e+88>>2]=t[r+776>>2],t[e+92>>2]=A,A=t[r+772>>2],t[e+80>>2]=t[r+768>>2],t[e+84>>2]=A,A=t[e+52>>2],t[r+528>>2]=t[e+48>>2],t[r+532>>2]=A,A=t[e+60>>2],t[r+536>>2]=t[e+56>>2],t[r+540>>2]=A,A=t[n+4>>2],t[r+512>>2]=t[n>>2],t[r+516>>2]=A,A=t[n+12>>2],t[r+520>>2]=t[n+8>>2],t[r+524>>2]=A,H0(i,r+528|0,r+512|0),A=t[r+780>>2],t[n+8>>2]=t[r+776>>2],t[n+12>>2]=A,A=t[r+772>>2],t[n>>2]=t[r+768>>2],t[n+4>>2]=A,A=t[e+36>>2],t[r+496>>2]=t[e+32>>2],t[r+500>>2]=A,A=t[e+44>>2],t[r+504>>2]=t[e+40>>2],t[r+508>>2]=A,A=t[e+52>>2],t[r+480>>2]=t[e+48>>2],t[r+484>>2]=A,A=t[e+60>>2],t[r+488>>2]=t[e+56>>2],t[r+492>>2]=A,H0(i,r+496|0,r+480|0),A=t[r+780>>2],t[e+56>>2]=t[r+776>>2],t[e+60>>2]=A,A=t[r+772>>2],t[e+48>>2]=t[r+768>>2],t[e+52>>2]=A,A=t[e+20>>2],t[r+464>>2]=t[e+16>>2],t[r+468>>2]=A,A=t[e+28>>2],t[r+472>>2]=t[e+24>>2],t[r+476>>2]=A,A=t[e+36>>2],t[r+448>>2]=t[e+32>>2],t[r+452>>2]=A,A=t[e+44>>2],t[r+456>>2]=t[e+40>>2],t[r+460>>2]=A,H0(i,r+464|0,r+448|0),A=t[r+780>>2],t[e+40>>2]=t[r+776>>2],t[e+44>>2]=A,A=t[r+772>>2],t[e+32>>2]=t[r+768>>2],t[e+36>>2]=A,A=t[e+4>>2],t[r+432>>2]=t[e>>2],t[r+436>>2]=A,A=t[e+12>>2],t[r+440>>2]=t[e+8>>2],t[r+444>>2]=A,A=t[e+20>>2],t[r+416>>2]=t[e+16>>2],t[r+420>>2]=A,A=t[e+28>>2],t[r+424>>2]=t[e+24>>2],t[r+428>>2]=A,H0(i,r+432|0,r+416|0),A=t[r+780>>2],t[e+24>>2]=t[r+776>>2],t[e+28>>2]=A,A=t[r+772>>2],t[e+16>>2]=t[r+768>>2],t[e+20>>2]=A,A=t[r+788>>2],t[r+400>>2]=t[r+784>>2],t[r+404>>2]=A,A=t[r+796>>2],t[r+408>>2]=t[r+792>>2],t[r+412>>2]=A,A=t[e+4>>2],t[r+384>>2]=t[e>>2],t[r+388>>2]=A,A=t[e+12>>2],t[r+392>>2]=t[e+8>>2],t[r+396>>2]=A,H0(i,r+400|0,r+384|0),A=t[r+768>>2],_=t[r+772>>2],h=t[r+776>>2],t[e+12>>2]=t[r+780>>2]^Q,t[e+8>>2]=h^N,t[e+4>>2]=_^Y,t[e>>2]=A^M,A=t[e+92>>2],t[r+792>>2]=t[e+88>>2],t[r+796>>2]=A,A=t[e+84>>2],t[r+784>>2]=t[e+80>>2],t[r+788>>2]=A,A=t[n+4>>2],t[r+368>>2]=t[n>>2],t[r+372>>2]=A,A=t[n+12>>2],t[r+376>>2]=t[n+8>>2],t[r+380>>2]=A,A=t[e+92>>2],t[r+360>>2]=t[e+88>>2],t[r+364>>2]=A,A=t[e+84>>2],t[r+352>>2]=t[e+80>>2],t[r+356>>2]=A,H0(i,r+368|0,r+352|0),A=t[r+780>>2],t[e+88>>2]=t[r+776>>2],t[e+92>>2]=A,A=t[r+772>>2],t[e+80>>2]=t[r+768>>2],t[e+84>>2]=A,A=t[e+52>>2],t[r+336>>2]=t[e+48>>2],t[r+340>>2]=A,A=t[e+60>>2],t[r+344>>2]=t[e+56>>2],t[r+348>>2]=A,A=t[n+4>>2],t[r+320>>2]=t[n>>2],t[r+324>>2]=A,A=t[n+12>>2],t[r+328>>2]=t[n+8>>2],t[r+332>>2]=A,H0(i,r+336|0,r+320|0),A=t[r+780>>2],t[n+8>>2]=t[r+776>>2],t[n+12>>2]=A,A=t[r+772>>2],t[n>>2]=t[r+768>>2],t[n+4>>2]=A,A=t[e+36>>2],t[r+304>>2]=t[e+32>>2],t[r+308>>2]=A,A=t[e+44>>2],t[r+312>>2]=t[e+40>>2],t[r+316>>2]=A,A=t[e+52>>2],t[r+288>>2]=t[e+48>>2],t[r+292>>2]=A,A=t[e+60>>2],t[r+296>>2]=t[e+56>>2],t[r+300>>2]=A,H0(i,r+304|0,r+288|0),A=t[r+780>>2],t[e+56>>2]=t[r+776>>2],t[e+60>>2]=A,A=t[r+772>>2],t[e+48>>2]=t[r+768>>2],t[e+52>>2]=A,A=t[e+20>>2],t[r+272>>2]=t[e+16>>2],t[r+276>>2]=A,A=t[e+28>>2],t[r+280>>2]=t[e+24>>2],t[r+284>>2]=A,A=t[e+36>>2],t[r+256>>2]=t[e+32>>2],t[r+260>>2]=A,A=t[e+44>>2],t[r+264>>2]=t[e+40>>2],t[r+268>>2]=A,H0(i,r+272|0,r+256|0),A=t[r+780>>2],t[e+40>>2]=t[r+776>>2],t[e+44>>2]=A,A=t[r+772>>2],t[e+32>>2]=t[r+768>>2],t[e+36>>2]=A,A=t[e+4>>2],t[r+240>>2]=t[e>>2],t[r+244>>2]=A,A=t[e+12>>2],t[r+248>>2]=t[e+8>>2],t[r+252>>2]=A,A=t[e+20>>2],t[r+224>>2]=t[e+16>>2],t[r+228>>2]=A,A=t[e+28>>2],t[r+232>>2]=t[e+24>>2],t[r+236>>2]=A,H0(i,r+240|0,r+224|0),A=t[r+780>>2],t[e+24>>2]=t[r+776>>2],t[e+28>>2]=A,A=t[r+772>>2],t[e+16>>2]=t[r+768>>2],t[e+20>>2]=A,A=t[r+788>>2],t[r+208>>2]=t[r+784>>2],t[r+212>>2]=A,A=t[r+796>>2],t[r+216>>2]=t[r+792>>2],t[r+220>>2]=A,A=t[e+4>>2],t[r+192>>2]=t[e>>2],t[r+196>>2]=A,A=t[e+12>>2],t[r+200>>2]=t[e+8>>2],t[r+204>>2]=A,H0(i,r+208|0,r+192|0),A=t[r+768>>2],_=t[r+772>>2],h=t[r+776>>2],t[e+12>>2]=u^t[r+780>>2],t[e+8>>2]=h^a,t[e+4>>2]=_^K,t[e>>2]=A^q,A=t[e+92>>2],t[r+792>>2]=t[e+88>>2],t[r+796>>2]=A,A=t[e+84>>2],t[r+784>>2]=t[e+80>>2],t[r+788>>2]=A,A=t[n+4>>2],t[r+176>>2]=t[n>>2],t[r+180>>2]=A,A=t[n+12>>2],t[r+184>>2]=t[n+8>>2],t[r+188>>2]=A,A=t[e+92>>2],t[r+168>>2]=t[e+88>>2],t[r+172>>2]=A,A=t[e+84>>2],t[r+160>>2]=t[e+80>>2],t[r+164>>2]=A,H0(i,r+176|0,r+160|0),A=t[r+780>>2],t[e+88>>2]=t[r+776>>2],t[e+92>>2]=A,A=t[r+772>>2],t[e+80>>2]=t[r+768>>2],t[e+84>>2]=A,A=t[e+52>>2],t[r+144>>2]=t[e+48>>2],t[r+148>>2]=A,A=t[e+60>>2],t[r+152>>2]=t[e+56>>2],t[r+156>>2]=A,A=t[n+4>>2],t[r+128>>2]=t[n>>2],t[r+132>>2]=A,A=t[n+12>>2],t[r+136>>2]=t[n+8>>2],t[r+140>>2]=A,H0(i,r+144|0,r+128|0),A=t[r+780>>2],t[n+8>>2]=t[r+776>>2],t[n+12>>2]=A,A=t[r+772>>2],t[n>>2]=t[r+768>>2],t[n+4>>2]=A,A=t[e+36>>2],t[r+112>>2]=t[e+32>>2],t[r+116>>2]=A,A=t[e+44>>2],t[r+120>>2]=t[e+40>>2],t[r+124>>2]=A,A=t[e+52>>2],t[r+96>>2]=t[e+48>>2],t[r+100>>2]=A,A=t[e+60>>2],t[r+104>>2]=t[e+56>>2],t[r+108>>2]=A,H0(i,r+112|0,r+96|0),A=t[r+780>>2],t[e+56>>2]=t[r+776>>2],t[e+60>>2]=A,A=t[r+772>>2],t[e+48>>2]=t[r+768>>2],t[e+52>>2]=A,A=t[e+20>>2],t[r+80>>2]=t[e+16>>2],t[r+84>>2]=A,A=t[e+28>>2],t[r+88>>2]=t[e+24>>2],t[r+92>>2]=A,A=t[e+36>>2],t[r+64>>2]=t[e+32>>2],t[r+68>>2]=A,A=t[e+44>>2],t[r+72>>2]=t[e+40>>2],t[r+76>>2]=A,H0(i,r+80|0,r- -64|0),A=t[r+780>>2],t[e+40>>2]=t[r+776>>2],t[e+44>>2]=A,A=t[r+772>>2],t[e+32>>2]=t[r+768>>2],t[e+36>>2]=A,A=t[e+4>>2],t[r+48>>2]=t[e>>2],t[r+52>>2]=A,A=t[e+12>>2],t[r+56>>2]=t[e+8>>2],t[r+60>>2]=A,A=t[e+20>>2],t[r+32>>2]=t[e+16>>2],t[r+36>>2]=A,A=t[e+28>>2],t[r+40>>2]=t[e+24>>2],t[r+44>>2]=A,H0(i,r+48|0,r+32|0),A=t[r+780>>2],t[e+24>>2]=t[r+776>>2],t[e+28>>2]=A,A=t[r+772>>2],t[e+16>>2]=t[r+768>>2],t[e+20>>2]=A,A=t[r+788>>2],t[r+16>>2]=t[r+784>>2],t[r+20>>2]=A,A=t[r+796>>2],t[r+24>>2]=t[r+792>>2],t[r+28>>2]=A,A=t[e+4>>2],t[r>>2]=t[e>>2],t[r+4>>2]=A,A=t[e+12>>2],t[r+8>>2]=t[e+8>>2],t[r+12>>2]=A,H0(i,r+16|0,r),i=t[r+768>>2],A=t[r+772>>2],_=t[r+776>>2],t[e+12>>2]=w^t[r+780>>2],t[e+8>>2]=_^g,t[e+4>>2]=A^v,t[e>>2]=i^B,s=s+1|0,(s|0)!=4;);X=r+800|0}function U1(i){i=i|0;var n=0,e=0,r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0;B=X-16|0,X=B;e:{r:{t:{n:{A:{i:{s:{_:{l:{o:{if(i>>>0<=244){if(_=t[10173],s=i>>>0<11?16:i+11&504,i=s>>>3|0,n=_>>>i|0,n&3){A=i+((n^-1)&1)|0,n=A<<3,i=n+40732|0,e=t[n+40740>>2],r=t[e+8>>2];h:{if((i|0)==(r|0)){g=40692,w=t0(-2,A)&_,t[g>>2]=w;break h}t[r+12>>2]=i,t[i+8>>2]=r}i=e+8|0,t[e+4>>2]=n|3,n=n+e|0,t[n+4>>2]=t[n+4>>2]|1;break e}if(a=t[10175],a>>>0>=s>>>0)break o;if(n){e=2<<i,A=Rn((0-e|e)&n<<i),i=A<<3,n=i+40732|0,e=t[i+40740>>2],r=t[e+8>>2];h:{if((n|0)==(r|0)){_=t0(-2,A)&_,t[10173]=_;break h}t[r+12>>2]=n,t[n+8>>2]=r}if(t[e+4>>2]=s|3,h=e+s|0,A=i-s|0,t[h+4>>2]=A|1,t[i+e>>2]=A,a){i=(a&-8)+40732|0,r=t[10178],n=1<<(a>>>3);h:{if(!(n&_)){t[10173]=n|_,n=i;break h}n=t[i+8>>2]}t[i+8>>2]=r,t[n+12>>2]=r,t[r+12>>2]=i,t[r+8>>2]=n}i=e+8|0,t[10178]=h,t[10175]=A;break e}if(v=t[10174],!v)break o;for(n=t[(Rn(v)<<2)+40996>>2],A=(t[n+4>>2]&-8)-s|0,e=n;;){h:{if(i=t[n+16>>2],!i&&(i=t[n+20>>2],!i))break h;r=(t[i+4>>2]&-8)-s|0,n=r>>>0<A>>>0,A=n?r:A,e=n?i:e,n=i;continue}break}if(u=t[e+24>>2],i=t[e+12>>2],(e|0)!=(i|0)){n=t[e+8>>2],t[n+12>>2]=i,t[i+8>>2]=n;break r}if(n=t[e+20>>2],n)r=e+20|0;else{if(n=t[e+16>>2],!n)break l;r=e+16|0}for(;h=r,i=n,r=i+20|0,n=t[i+20>>2],!(!n&&(r=i+16|0,n=t[i+16>>2],!n)););t[h>>2]=0;break r}if(s=-1,i>>>0>4294967231||(n=i+11|0,s=n&-8,h=t[10174],!h))break o;a=31,A=0-s|0,i>>>0<=16777204&&(i=de(n>>>8|0),a=((s>>>38-i&1)-(i<<1)|0)+62|0),n=t[(a<<2)+40996>>2];h:{u:{y:{if(!n){i=0;break y}for(i=0,e=s<<((a|0)!=31?25-(a>>>1|0)|0:0);;){f:{if(_=(t[n+4>>2]&-8)-s|0,_>>>0>=A>>>0||(r=n,A=_,A))break f;A=0,i=n;break u}if(_=t[n+20>>2],n=t[((e>>>29&4)+n|0)+16>>2],i=_?(_|0)==(n|0)?i:_:i,e=e<<1,!n)break}}if(!(i|r)){if(r=0,i=2<<a,i=(0-i|i)&h,!i)break o;i=t[(Rn(i)<<2)+40996>>2]}if(!i)break h}for(;e=(t[i+4>>2]&-8)-s|0,n=e>>>0<A>>>0,A=n?e:A,r=n?i:r,n=t[i+16>>2],n?i=n:i=t[i+20>>2],!!i;);}if(!r|t[10175]-s>>>0<=A>>>0)break o;if(a=t[r+24>>2],i=t[r+12>>2],(r|0)!=(i|0)){n=t[r+8>>2],t[n+12>>2]=i,t[i+8>>2]=n;break t}if(n=t[r+20>>2],n)e=r+20|0;else{if(n=t[r+16>>2],!n)break _;e=r+16|0}for(;_=e,i=n,e=i+20|0,n=t[i+20>>2],!(!n&&(e=i+16|0,n=t[i+16>>2],!n)););t[_>>2]=0;break t}if(r=t[10175],r>>>0>=s>>>0){i=t[10178],n=r-s|0;o:{if(n>>>0>=16){e=i+s|0,t[e+4>>2]=n|1,t[i+r>>2]=n,t[i+4>>2]=s|3;break o}t[i+4>>2]=r|3,n=i+r|0,t[n+4>>2]=t[n+4>>2]|1,n=0,e=0}t[10175]=n,t[10178]=e,i=i+8|0;break e}if(e=t[10176],e>>>0>s>>>0){n=e-s|0,t[10176]=n,i=t[10179],e=i+s|0,t[10179]=e,t[e+4>>2]=n|1,t[i+4>>2]=s|3,i=i+8|0;break e}if(i=0,A=s+47|0,t[10291]?n=t[10293]:(t[10294]=-1,t[10295]=-1,t[10292]=4096,t[10293]=4096,t[10291]=B+12&-16^1431655768,t[10296]=0,t[10284]=0,n=4096),_=A+n|0,h=0-n|0,n=_&h,n>>>0<=s>>>0||(a=t[10283],a&&(u=t[10281],r=u+n|0,r>>>0<=u>>>0|r>>>0>a>>>0)))break e;o:{if(!(o[41136]&4)){h:{u:{y:{f:{if(r=t[10179],r)for(i=41140;;){if(a=t[i>>2],a>>>0<=r>>>0&r>>>0<a+t[i+4>>2]>>>0)break f;if(i=t[i+8>>2],!i)break}if(e=Kr(0),(e|0)==-1||(_=n,i=t[10292],r=i-1|0,r&e&&(_=(n-e|0)+(e+r&0-i)|0),_>>>0<=s>>>0)||(r=t[10283],r&&(h=t[10281],i=h+_|0,i>>>0<=h>>>0|i>>>0>r>>>0)))break h;if(i=Kr(_),(e|0)!=(i|0))break y;break o}if(_=h&_-e,e=Kr(_),(e|0)==(t[i>>2]+t[i+4>>2]|0))break u;i=e}if((i|0)==-1)break h;if(s+48>>>0<=_>>>0){e=i;break o}if(e=t[10293],e=e+(A-_|0)&0-e,(Kr(e)|0)==-1)break h;_=e+_|0,e=i;break o}if((e|0)!=-1)break o}t[10284]=t[10284]|4}if(e=Kr(n),i=Kr(0),(e|0)==-1|(i|0)==-1|i>>>0<=e>>>0||(_=i-e|0,_>>>0<=s+40>>>0))break A}i=t[10281]+_|0,t[10281]=i,i>>>0>R1[10282]&&(t[10282]=i);o:{if(A=t[10179],A){for(i=41140;;){if(n=t[i>>2],r=t[i+4>>2],(n+r|0)==(e|0))break o;if(i=t[i+8>>2],!i)break}break s}for(i=t[10177],i>>>0<=e>>>0&&i||(t[10177]=e),i=0,t[10286]=_,t[10285]=e,t[10181]=-1,t[10182]=t[10291],t[10288]=0;n=i<<3,r=n+40732|0,t[n+40740>>2]=r,t[n+40744>>2]=r,i=i+1|0,(i|0)!=32;);i=_-40|0,n=-8-e&7,r=i-n|0,t[10176]=r,n=n+e|0,t[10179]=n,t[n+4>>2]=r|1,t[(i+e|0)+4>>2]=40,t[10180]=t[10295];break i}if(t[i+12>>2]&8|(e>>>0<=A>>>0|n>>>0>A>>>0))break s;t[i+4>>2]=r+_,i=-8-A&7,n=i+A|0,t[10179]=n,e=t[10176]+_|0,i=e-i|0,t[10176]=i,t[n+4>>2]=i|1,t[(e+A|0)+4>>2]=40,t[10180]=t[10295];break i}i=0;break r}i=0;break t}R1[10177]>e>>>0&&(t[10177]=e),r=e+_|0,i=41140;s:{for(;;){if(n=t[i>>2],(n|0)!=(r|0)){if(i=t[i+8>>2],i)continue;break s}break}if(!(o[i+12|0]&8))break n}for(i=41140;;){s:{if(n=t[i>>2],n>>>0<=A>>>0&&(r=n+t[i+4>>2]|0,r>>>0>A>>>0))break s;i=t[i+8>>2];continue}break}for(i=_-40|0,n=-8-e&7,h=i-n|0,t[10176]=h,n=n+e|0,t[10179]=n,t[n+4>>2]=h|1,t[(i+e|0)+4>>2]=40,t[10180]=t[10295],i=(r+(39-r&7)|0)-47|0,n=i>>>0<A+16>>>0?A:i,t[n+4>>2]=27,i=t[10288],t[n+16>>2]=t[10287],t[n+20>>2]=i,i=t[10286],t[n+8>>2]=t[10285],t[n+12>>2]=i,t[10287]=n+8,t[10286]=_,t[10285]=e,t[10288]=0,i=n+24|0;t[i+4>>2]=7,e=i+8|0,i=i+4|0,e>>>0<r>>>0;);if((n|0)==(A|0))break i;t[n+4>>2]=t[n+4>>2]&-2,e=n-A|0,t[A+4>>2]=e|1,t[n>>2]=e;s:{if(e>>>0<=255){i=(e&248)+40732|0,n=t[10173],e=1<<(e>>>3);_:{if(!(n&e)){t[10173]=n|e,n=i;break _}n=t[i+8>>2]}t[i+8>>2]=A,t[n+12>>2]=A,r=8,e=12;break s}i=31,e>>>0<=16777215&&(i=de(e>>>8|0),i=(e>>>38-i&1|i<<1)^62),t[A+28>>2]=i,t[A+16>>2]=0,t[A+20>>2]=0,n=(i<<2)+40996|0;_:{r=t[10174],_=1<<i;l:{if(!(r&_)){t[10174]=r|_,t[n>>2]=A;break l}for(i=e<<((i|0)!=31?25-(i>>>1|0)|0:0),r=t[n>>2];;){if(n=r,(e|0)==(t[n+4>>2]&-8))break _;if(r=i>>>29|0,i=i<<1,_=(r&4)+n|0,r=t[_+16>>2],!r)break}t[_+16>>2]=A}t[A+24>>2]=n,n=A,i=n,r=12,e=8;break s}i=t[n+8>>2],t[i+12>>2]=A,t[n+8>>2]=A,t[A+8>>2]=i,i=0,r=12,e=24}t[A+r>>2]=n,t[e+A>>2]=i}if(i=t[10176],i>>>0<=s>>>0)break A;n=i-s|0,t[10176]=n,i=t[10179],e=i+s|0,t[10179]=e,t[e+4>>2]=n|1,t[i+4>>2]=s|3,i=i+8|0;break e}t[10172]=48,i=0;break e}t[i>>2]=e,t[i+4>>2]=t[i+4>>2]+_,a=(-8-e&7)+e|0,t[a+4>>2]=s|3,_=n+(-8-n&7)|0,A=s+a|0,h=_-A|0;n:{if(t[10179]==(_|0)){t[10179]=A,i=t[10176]+h|0,t[10176]=i,t[A+4>>2]=i|1;break n}if(t[10178]==(_|0)){t[10178]=A,i=t[10175]+h|0,t[10175]=i,t[A+4>>2]=i|1,t[i+A>>2]=i;break n}if(i=t[_+4>>2],(i&3)==1){u=i&-8,e=t[_+12>>2];A:{if(i>>>0<=255){if(n=t[_+8>>2],(n|0)==(e|0)){g=40692,w=t[10173]&t0(-2,i>>>3|0),t[g>>2]=w;break A}t[n+12>>2]=e,t[e+8>>2]=n;break A}s=t[_+24>>2];i:{if((e|0)!=(_|0)){i=t[_+8>>2],t[i+12>>2]=e,t[e+8>>2]=i;break i}s:{if(i=t[_+20>>2],i)n=_+20|0;else{if(i=t[_+16>>2],!i)break s;n=_+16|0}for(;r=n,e=i,n=i+20|0,i=t[i+20>>2],!(!i&&(n=e+16|0,i=t[e+16>>2],!i)););t[r>>2]=0;break i}e=0}if(!s)break A;i=t[_+28>>2],n=i<<2;i:{if(t[n+40996>>2]==(_|0)){if(t[n+40996>>2]=e,e)break i;g=40696,w=t[10174]&t0(-2,i),t[g>>2]=w;break A}s:{if(t[s+16>>2]==(_|0)){t[s+16>>2]=e;break s}t[s+20>>2]=e}if(!e)break A}if(t[e+24>>2]=s,i=t[_+16>>2],i&&(t[e+16>>2]=i,t[i+24>>2]=e),i=t[_+20>>2],!i)break A;t[e+20>>2]=i,t[i+24>>2]=e}h=h+u|0,_=_+u|0,i=t[_+4>>2]}if(t[_+4>>2]=i&-2,t[A+4>>2]=h|1,t[A+h>>2]=h,h>>>0<=255){i=(h&248)+40732|0,n=t[10173],e=1<<(h>>>3);A:{if(!(n&e)){t[10173]=n|e,n=i;break A}n=t[i+8>>2]}t[i+8>>2]=A,t[n+12>>2]=A,t[A+12>>2]=i,t[A+8>>2]=n;break n}e=31,h>>>0<=16777215&&(i=de(h>>>8|0),e=(h>>>38-i&1|i<<1)^62),t[A+28>>2]=e,t[A+16>>2]=0,t[A+20>>2]=0,i=(e<<2)+40996|0;A:{n=t[10174],r=1<<e;i:{if(!(n&r)){t[10174]=n|r,t[i>>2]=A;break i}for(e=h<<((e|0)!=31?25-(e>>>1|0)|0:0),n=t[i>>2];;){if(i=n,(t[i+4>>2]&-8)==(h|0))break A;if(n=e>>>29|0,e=e<<1,r=(n&4)+i|0,n=t[r+16>>2],!n)break}t[r+16>>2]=A}t[A+24>>2]=i,t[A+12>>2]=A,t[A+8>>2]=A;break n}n=t[i+8>>2],t[n+12>>2]=A,t[i+8>>2]=A,t[A+24>>2]=0,t[A+12>>2]=i,t[A+8>>2]=n}i=a+8|0;break e}t:{if(!a)break t;n=t[r+28>>2],e=n<<2;n:{if(t[e+40996>>2]==(r|0)){if(t[e+40996>>2]=i,i)break n;h=t0(-2,n)&h,t[10174]=h;break t}A:{if(t[a+16>>2]==(r|0)){t[a+16>>2]=i;break A}t[a+20>>2]=i}if(!i)break t}if(t[i+24>>2]=a,n=t[r+16>>2],n&&(t[i+16>>2]=n,t[n+24>>2]=i),n=t[r+20>>2],!n)break t;t[i+20>>2]=n,t[n+24>>2]=i}t:{if(A>>>0<=15){i=A+s|0,t[r+4>>2]=i|3,i=i+r|0,t[i+4>>2]=t[i+4>>2]|1;break t}if(t[r+4>>2]=s|3,_=r+s|0,t[_+4>>2]=A|1,t[A+_>>2]=A,A>>>0<=255){i=(A&248)+40732|0,n=t[10173],e=1<<(A>>>3);n:{if(!(n&e)){t[10173]=n|e,n=i;break n}n=t[i+8>>2]}t[i+8>>2]=_,t[n+12>>2]=_,t[_+12>>2]=i,t[_+8>>2]=n;break t}i=31,A>>>0<=16777215&&(i=de(A>>>8|0),i=(A>>>38-i&1|i<<1)^62),t[_+28>>2]=i,t[_+16>>2]=0,t[_+20>>2]=0,n=(i<<2)+40996|0;n:{e=1<<i;A:{if(!(e&h)){t[10174]=e|h,t[n>>2]=_,t[_+24>>2]=n;break A}for(i=A<<((i|0)!=31?25-(i>>>1|0)|0:0),n=t[n>>2];;){if(e=n,(t[n+4>>2]&-8)==(A|0))break n;if(h=i>>>29|0,i=i<<1,h=n+(h&4)|0,n=t[h+16>>2],!n)break}t[h+16>>2]=_,t[_+24>>2]=e}t[_+12>>2]=_,t[_+8>>2]=_;break t}i=t[e+8>>2],t[i+12>>2]=_,t[e+8>>2]=_,t[_+24>>2]=0,t[_+12>>2]=e,t[_+8>>2]=i}i=r+8|0;break e}r:{if(!u)break r;n=t[e+28>>2],r=n<<2;t:{if(t[r+40996>>2]==(e|0)){if(t[r+40996>>2]=i,i)break t;g=40696,w=t0(-2,n)&v,t[g>>2]=w;break r}n:{if(t[u+16>>2]==(e|0)){t[u+16>>2]=i;break n}t[u+20>>2]=i}if(!i)break r}if(t[i+24>>2]=u,n=t[e+16>>2],n&&(t[i+16>>2]=n,t[n+24>>2]=i),n=t[e+20>>2],!n)break r;t[i+20>>2]=n,t[n+24>>2]=i}r:{if(A>>>0<=15){i=A+s|0,t[e+4>>2]=i|3,i=i+e|0,t[i+4>>2]=t[i+4>>2]|1;break r}if(t[e+4>>2]=s|3,h=e+s|0,t[h+4>>2]=A|1,t[A+h>>2]=A,a){i=(a&-8)+40732|0,r=t[10178],n=1<<(a>>>3);t:{if(!(n&_)){t[10173]=n|_,n=i;break t}n=t[i+8>>2]}t[i+8>>2]=r,t[n+12>>2]=r,t[r+12>>2]=i,t[r+8>>2]=n}t[10178]=h,t[10175]=A}i=e+8|0}return X=B+16|0,i|0}function Si(i,n){var e=0,r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0,z=0,$=0,V=0,W=0,e0=0,i0=0,o0=0,s0=0,h0=0,u0=0,y0=0,f0=0,B0=0,c0=0,j0=0,d0=0,w0=0,T0=0,P0=0,I0=0,M0=0,L0=0,E0=0,R0=0,F0=0,Q0=0,O0=0,X0=0;for(g=X-48|0,X=g,A=o[n+28|0]|o[n+29|0]<<8|(o[n+30|0]<<16|o[n+31|0]<<24),r=o[n+24|0]|o[n+25|0]<<8|(o[n+26|0]<<16|o[n+27|0]<<24),f[i+24|0]=r,f[i+25|0]=r>>>8,f[i+26|0]=r>>>16,f[i+27|0]=r>>>24,f[i+28|0]=A,f[i+29|0]=A>>>8,f[i+30|0]=A>>>16,f[i+31|0]=A>>>24,A=o[n+20|0]|o[n+21|0]<<8|(o[n+22|0]<<16|o[n+23|0]<<24),r=o[n+16|0]|o[n+17|0]<<8|(o[n+18|0]<<16|o[n+19|0]<<24),f[i+16|0]=r,f[i+17|0]=r>>>8,f[i+18|0]=r>>>16,f[i+19|0]=r>>>24,f[i+20|0]=A,f[i+21|0]=A>>>8,f[i+22|0]=A>>>16,f[i+23|0]=A>>>24,A=o[n+12|0]|o[n+13|0]<<8|(o[n+14|0]<<16|o[n+15|0]<<24),r=o[n+8|0]|o[n+9|0]<<8|(o[n+10|0]<<16|o[n+11|0]<<24),f[i+8|0]=r,f[i+9|0]=r>>>8,f[i+10|0]=r>>>16,f[i+11|0]=r>>>24,f[i+12|0]=A,f[i+13|0]=A>>>8,f[i+14|0]=A>>>16,f[i+15|0]=A>>>24,r=o[n+4|0]|o[n+5|0]<<8|(o[n+6|0]<<16|o[n+7|0]<<24),n=o[n|0]|o[n+1|0]<<8|(o[n+2|0]<<16|o[n+3|0]<<24),f[i|0]=n,f[i+1|0]=n>>>8,f[i+2|0]=n>>>16,f[i+3|0]=n>>>24,f[i+4|0]=r,f[i+5|0]=r>>>8,f[i+6|0]=r>>>16,f[i+7|0]=r>>>24,n=o[i+31|0],f[i+31|0]=n&127,ar(g,i),w0=n&128,n=X-960|0,X=n,r=n+304|0,xi(r,g),t[n+304>>2]=t[n+304>>2]+1,pr(r,r),r=t[n+340>>2],A=T(r,r>>31,486662,0),r=c,v=A+16777216|0,u=v>>>0<16777216?r+1|0:r,B=A-(v&-33554432)|0,r=t[n+336>>2],e=T(r,r>>31,486662,0),A=c,r=t[n+332>>2],_=T(r,r>>31,486662,0),r=c,a=e,h=_+16777216|0,r=h>>>0<16777216?r+1|0:r,e=r>>25,r=(r&33554431)<<7|h>>>25,s=a+r|0,e=e+A|0,r=r>>>0>s>>>0?e+1|0:e,A=s+33554432|0,r=A>>>0<33554432?r+1|0:r,w=((r&67108863)<<6|A>>>26)+B|0,q=0-w|0,t[n+292>>2]=q,S=s-(A&-67108864)|0,I=0-S|0,t[n+288>>2]=I,B=_-(h&-33554432)|0,r=t[n+328>>2],A=T(r,r>>31,486662,0),r=c,e=t[n+324>>2],h=T(e,e>>31,486662,0),e=c,a=A,s=h+16777216|0,e=s>>>0<16777216?e+1|0:e,A=e>>25,_=(e&33554431)<<7|s>>>25,e=a+_|0,r=r+A|0,r=e>>>0<_>>>0?r+1|0:r,A=e+33554432|0,r=A>>>0<33554432?r+1|0:r,D=((r&67108863)<<6|A>>>26)+B|0,M=0-D|0,t[n+284>>2]=M,Y=e-(A&-67108864)|0,N=0-Y|0,t[n+280>>2]=N,B=h-(s&-33554432)|0,r=t[n+320>>2],e=T(r,r>>31,486662,0),r=c,A=t[n+316>>2],h=T(A,A>>31,486662,0),A=c,a=e,s=h+16777216|0,A=s>>>0<16777216?A+1|0:A,e=A>>25,_=(A&33554431)<<7|s>>>25,A=a+_|0,r=e+r|0,r=A>>>0<_>>>0?r+1|0:r,e=r,_=A+33554432|0,e=_>>>0<33554432?e+1|0:e,Q=((e&67108863)<<6|_>>>26)+B|0,G=0-Q|0,t[n+276>>2]=G,K=A-(_&-67108864)|0,z=0-K|0,t[n+272>>2]=z,a=h-(s&-33554432)|0,r=t[n+312>>2],r=T(r,r>>31,486662,0),B=c,A=t[n+308>>2],_=T(A,A>>31,486662,0),e=c,h=_+16777216|0,e=h>>>0<16777216?e+1|0:e,A=(e&33554431)<<7|h>>>25,s=A+r|0,e=(e>>25)+B|0,A=A>>>0>s>>>0?e+1|0:e,r=s+33554432|0,A=r>>>0<33554432?A+1|0:A,$=((A&67108863)<<6|r>>>26)+a|0,V=0-$|0,t[n+268>>2]=V,W=s-(r&-67108864)|0,e0=0-W|0,t[n+264>>2]=e0,s=_-(h&-33554432)|0,A=T((u&33554431)<<7|v>>>25,u>>25,19,0),r=c,_=A,e=t[n+304>>2],A=T(e,e>>31,486662,0),e=_+A|0,r=c+r|0,A=e>>>0<A>>>0?r+1|0:r,r=e+33554432|0,A=r>>>0<33554432?A+1|0:A,i0=((A&67108863)<<6|r>>>26)+s|0,o0=0-i0|0,t[n+260>>2]=o0,s0=e-(r&-67108864)|0,h0=0-s0|0,t[n+256>>2]=h0,A=n+208|0,r=n+256|0,U(A,r),A0(n+160|0,r,A),T0=t[n+196>>2],P0=t[n+160>>2],y0=t[n+208>>2],I0=t[n+164>>2],M0=t[n+168>>2],f0=t[n+212>>2],B0=t[n+216>>2],L0=t[n+172>>2],E0=t[n+176>>2],c0=t[n+220>>2],j0=t[n+224>>2],R0=t[n+180>>2],F0=t[n+184>>2],a=t[n+228>>2],B=t[n+232>>2],Q0=t[n+188>>2],O0=t[n+192>>2],r=t[n+244>>2],A=T(r,r>>31,486662,0),r=c,v=A+16777216|0,u=v>>>0<16777216?r+1|0:r,X0=A-(v&-33554432)|0,r=t[n+240>>2],r=T(r,r>>31,486662,0),u0=c,A=t[n+236>>2],_=T(A,A>>31,486662,0),e=c,A=r,h=_+16777216|0,e=h>>>0<16777216?e+1|0:e,r=(e&33554431)<<7|h>>>25,s=A+r|0,e=(e>>25)+u0|0,r=r>>>0>s>>>0?e+1|0:e,A=s+33554432|0,r=A>>>0<33554432?r+1|0:r,e=((r&67108863)<<6|A>>>26)+X0|0,t[n+244>>2]=e,t[n+388>>2]=e+(T0-w|0),r=s-(A&-67108864)|0,t[n+240>>2]=r,t[n+384>>2]=r+(O0-S|0),u0=_-(h&-33554432)|0,r=T(B,B>>31,486662,0),_=c,h=T(a,a>>31,486662,0),A=c,a=r,s=h+16777216|0,A=s>>>0<16777216?A+1|0:A,r=A>>25,e=(A&33554431)<<7|s>>>25,A=a+e|0,r=r+_|0,r=e>>>0>A>>>0?r+1|0:r,e=r,_=A+33554432|0,e=_>>>0<33554432?e+1|0:e,r=_,_=((e&67108863)<<6|r>>>26)+u0|0,t[n+236>>2]=_,t[n+380>>2]=_+(Q0-D|0),r=A-(r&-67108864)|0,t[n+232>>2]=r,t[n+376>>2]=r+(F0-Y|0),B=h-(s&-33554432)|0,e=T(j0,j0>>31,486662,0),A=c,_=T(c0,c0>>31,486662,0),r=c,a=e,h=_+16777216|0,r=h>>>0<16777216?r+1|0:r,e=r>>25,r=(r&33554431)<<7|h>>>25,s=a+r|0,e=e+A|0,A=r>>>0>s>>>0?e+1|0:e,r=s+33554432|0,A=r>>>0<33554432?A+1|0:A,e=((A&67108863)<<6|r>>>26)+B|0,t[n+228>>2]=e,t[n+372>>2]=e+(R0-Q|0),r=s-(r&-67108864)|0,t[n+224>>2]=r,t[n+368>>2]=r+(E0-K|0),B=_-(h&-33554432)|0,r=T(B0,B0>>31,486662,0),A=c,h=T(f0,f0>>31,486662,0),e=c,a=r,s=h+16777216|0,e=s>>>0<16777216?e+1|0:e,r=e>>25,_=(e&33554431)<<7|s>>>25,e=a+_|0,A=r+A|0,A=e>>>0<_>>>0?A+1|0:A,r=A,_=e+33554432|0,r=_>>>0<33554432?r+1|0:r,A=_,_=((r&67108863)<<6|A>>>26)+B|0,t[n+220>>2]=_,t[n+364>>2]=_+(L0-$|0),r=e-(A&-67108864)|0,t[n+216>>2]=r,t[n+360>>2]=r+(M0-W|0),s=h-(s&-33554432)|0,A=T((u&33554431)<<7|v>>>25,u>>25,19,0),r=c,e=A,A=T(y0,y0>>31,486662,0),e=e+A|0,r=c+r|0,r=e>>>0<A>>>0?r+1|0:r,A=e+33554432|0,r=A>>>0<33554432?r+1|0:r,u=((r&67108863)<<6|A>>>26)+s|0,t[n+212>>2]=u,t[n+356>>2]=u+(I0-i0|0),r=e-(A&-67108864)|0,t[n+208>>2]=r,t[n+352>>2]=r+(P0-s0|0),r=n+624|0,A=n+352|0,A0(r,A,A),A0(n,A,r),A=n+784|0,U(A,n),U(A,A),r=n+912|0,A0(r,n,A),A=n+576|0,U(A,r),U(A,A),U(A,A),U(A,A),e=n+528|0,A0(e,r,A),U(e,e),U(e,e),A0(e,e,n),r=t[n+564>>2],t[n+512>>2]=t[n+560>>2],t[n+516>>2]=r,r=t[n+556>>2],t[n+504>>2]=t[n+552>>2],t[n+508>>2]=r,r=t[n+548>>2],t[n+496>>2]=t[n+544>>2],t[n+500>>2]=r,r=t[n+540>>2],t[n+488>>2]=t[n+536>>2],t[n+492>>2]=r,r=t[n+532>>2],t[n+480>>2]=t[n+528>>2],t[n+484>>2]=r,U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),r=n+480|0,A0(e,e,r),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),A0(e,e,r),r=t[n+564>>2],t[n+464>>2]=t[n+560>>2],t[n+468>>2]=r,r=t[n+556>>2],t[n+456>>2]=t[n+552>>2],t[n+460>>2]=r,r=t[n+548>>2],t[n+448>>2]=t[n+544>>2],t[n+452>>2]=r,r=t[n+540>>2],t[n+440>>2]=t[n+536>>2],t[n+444>>2]=r,r=t[n+532>>2],t[n+432>>2]=t[n+528>>2],t[n+436>>2]=r,U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),A=n+432|0,A0(e,e,A),r=t[n+564>>2],t[n+464>>2]=t[n+560>>2],t[n+468>>2]=r,r=t[n+556>>2],t[n+456>>2]=t[n+552>>2],t[n+460>>2]=r,r=t[n+548>>2],t[n+448>>2]=t[n+544>>2],t[n+452>>2]=r,r=t[n+540>>2],t[n+440>>2]=t[n+536>>2],t[n+444>>2]=r,r=t[n+532>>2],t[n+432>>2]=t[n+528>>2],t[n+436>>2]=r,U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),A0(e,e,A),r=t[n+564>>2],t[n+464>>2]=t[n+560>>2],t[n+468>>2]=r,r=t[n+556>>2],t[n+456>>2]=t[n+552>>2],t[n+460>>2]=r,r=t[n+548>>2],t[n+448>>2]=t[n+544>>2],t[n+452>>2]=r,r=t[n+540>>2],t[n+440>>2]=t[n+536>>2],t[n+444>>2]=r,r=t[n+532>>2],t[n+432>>2]=t[n+528>>2],t[n+436>>2]=r;r=n+528|0,U(r,r),d0=d0+1|0,(d0|0)!=120;);A0(r,r,n+432|0),U(r,r),U(r,r),U(r,r),U(r,r),U(r,r),U(r,r),U(r,r),U(r,r),U(r,r),U(r,r),A0(r,r,n+480|0),U(r,r),U(r,r),U(r,r),A0(r,r,n),U(r,r),V2(n+400|0,r),r=0-(f[n+401|0]&1)|0,a=q^r&(w^q),t[n+660>>2]=a,B=I^r&(S^I),t[n+656>>2]=B,v=M^r&(D^M),t[n+652>>2]=v,_=r&(Y^N)^N,t[n+648>>2]=_,h=r&(Q^G)^G,t[n+644>>2]=h,s=r&(K^z)^z,t[n+640>>2]=s,u=r&($^V)^V,t[n+636>>2]=u,e=r&(W^e0)^e0,t[n+632>>2]=e,A=r&(i0^o0)^o0,t[n+628>>2]=A,r=(r&(s0^h0)^h0)-(r&486662)|0,t[n+624>>2]=r+1,t[n+820>>2]=a,t[n+816>>2]=B,t[n+812>>2]=v,t[n+808>>2]=_,t[n+804>>2]=h,t[n+800>>2]=s,t[n+796>>2]=u,t[n+792>>2]=e,t[n+788>>2]=A,t[n+784>>2]=r-1,pr(n,n+624|0),r=n+912|0,A0(r,n+784|0,n),V2(i,r),f[i+31|0]=o[i+31|0]|w0,Br(n,i)&&(L_(),C2()),r=t[n+36>>2],t[n+816>>2]=t[n+32>>2],t[n+820>>2]=r,r=t[n+28>>2],t[n+808>>2]=t[n+24>>2],t[n+812>>2]=r,r=t[n+20>>2],t[n+800>>2]=t[n+16>>2],t[n+804>>2]=r,r=t[n+12>>2],t[n+792>>2]=t[n+8>>2],t[n+796>>2]=r,r=t[n+4>>2],t[n+784>>2]=t[n>>2],t[n+788>>2]=r,r=t[n+44>>2],t[n+824>>2]=t[n+40>>2],t[n+828>>2]=r,r=t[n+52>>2],t[n+832>>2]=t[n+48>>2],t[n+836>>2]=r,r=t[n+60>>2],t[n+840>>2]=t[n+56>>2],t[n+844>>2]=r,r=t[n+68>>2],t[n+848>>2]=t[n+64>>2],t[n+852>>2]=r,r=t[n+76>>2],t[n+856>>2]=t[n+72>>2],t[n+860>>2]=r,r=t[n+116>>2],t[n+896>>2]=t[n+112>>2],t[n+900>>2]=r,r=t[n+108>>2],t[n+888>>2]=t[n+104>>2],t[n+892>>2]=r,r=t[n+100>>2],t[n+880>>2]=t[n+96>>2],t[n+884>>2]=r,r=t[n+92>>2],t[n+872>>2]=t[n+88>>2],t[n+876>>2]=r,r=t[n+84>>2],t[n+864>>2]=t[n+80>>2],t[n+868>>2]=r,_=n+624|0,h=n+784|0,v1(_,h),s=n+744|0,A0(h,_,s),A=n+824|0,e=n+664|0,u=n+704|0,A0(A,e,u),r=n+864|0,A0(r,u,s),v1(_,h),A0(h,_,s),A0(A,e,u),A0(r,u,s),v1(_,h),A0(n,_,s),A=n+40|0,A0(A,e,u),r=n+80|0,A0(r,u,s),A0(n+120|0,_,e),pr(_,r),A0(h,n,_),r=n+912|0,A0(r,A,_),V2(i,r),V2(n+576|0,h),f[i+31|0]=o[i+31|0]^o[n+576|0]<<7,X=n+960|0,X=g+48|0}function c6(i,n,e,r,A,_){var s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0,z=0,$=0,V=0,W=0,e0=0,i0=0,o0=0,s0=0,h0=0,u0=0,y0=0,f0=0,B0=0,c0=0,j0=0,d0=0,w0=0,T0=0,P0=0,I0=0,M0=0,L0=0;o0=X-592|0,X=o0,u=-1,h=i+32|0;e:{if(!M4(h)||qt(i)||!M6(A)||qt(A)||(B=o0+128|0,e4(B,A)))break e;for(u=o0+384|0,Je(u),_&&a1(u,39696,34,0),a1(u,i,32,0),a1(u,A,32,0),a1(u,n,e,r),r=o0+320|0,N1(u,r),Me(r),u=o0+8|0,e=h,A=0,n=0,s=X-2272|0,X=s;_=s+2016|0,h=o[r+(A>>>3|0)|0],f[_+A|0]=h>>>(A&6)&1,a=_,_=A|1,f[a+_|0]=h>>>(_&7)&1,A=A+2|0,(A|0)!=256;);for(_=254;;){r=n,n=r+1|0,A=s+2016|0,w=A+r|0;r:{if(!o[w|0]|r>>>0>254)break r;v=n+A|0,A=f[v|0];t:{if(!A)break t;if(a=A<<1,h=f[w|0],A=a+h|0,(A|0)<=15){f[w|0]=A,f[v|0]=0;break t}if(A=h-a|0,(A|0)<-15)break r;for(f[w|0]=A,A=n;;){if(h=(s+2016|0)+A|0,!o[h|0]){f[h|0]=1;break t}if(f[h|0]=0,A=A+1|0,(A|0)==256)break}}if(!_)break r;A=r+2|0,D=A+(s+2016|0)|0,h=f[D|0];t:{if(!h)break t;if(v=h<<2,a=f[w|0],h=v+a|0,(h|0)>=16){if(h=a-v|0,(h|0)<-15)break r;for(f[w|0]=h;;){if(h=(s+2016|0)+A|0,o[h|0]){if(f[h|0]=0,A=A+1|0,(A|0)!=256)continue;break t}break}f[h|0]=1;break t}f[w|0]=h,f[D|0]=0}if(g=(_>>>0>=5?5:_)+1|0,(g|0)==2)break r;A=r+3|0,D=A+(s+2016|0)|0,h=f[D|0];t:{if(!h)break t;if(v=h<<3,a=f[w|0],h=v+a|0,(h|0)>=16){if(h=a-v|0,(h|0)<-15)break r;for(f[w|0]=h;;){if(h=(s+2016|0)+A|0,o[h|0]){if(f[h|0]=0,A=A+1|0,(A|0)!=256)continue;break t}break}f[h|0]=1;break t}f[w|0]=h,f[D|0]=0}if((g|0)==3)break r;A=r+4|0,D=A+(s+2016|0)|0,h=f[D|0];t:{if(!h)break t;if(v=h<<4,a=f[w|0],h=v+a|0,(h|0)>=16){if(h=a-v|0,(h|0)<-15)break r;for(f[w|0]=h;;){if(h=(s+2016|0)+A|0,o[h|0]){if(f[h|0]=0,A=A+1|0,(A|0)!=256)continue;break t}break}f[h|0]=1;break t}f[w|0]=h,f[D|0]=0}if((g|0)==4)break r;A=r+5|0,D=A+(s+2016|0)|0,h=f[D|0];t:{if(!h)break t;if(v=h<<5,a=f[w|0],h=v+a|0,(h|0)>=16){if(h=a-v|0,(h|0)<-15)break r;for(f[w|0]=h;;){if(h=(s+2016|0)+A|0,o[h|0]){if(f[h|0]=0,A=A+1|0,(A|0)!=256)continue;break t}break}f[h|0]=1;break t}f[w|0]=h,f[D|0]=0}if((g|0)==5||(A=r+6|0,v=A+(s+2016|0)|0,r=f[v|0],!r))break r;if(a=r<<6,h=f[w|0],r=a+h|0,(r|0)>=16){if(r=h-a|0,(r|0)<-15)break r;for(f[w|0]=r;;){if(r=(s+2016|0)+A|0,o[r|0]){if(f[r|0]=0,A=A+1|0,(A|0)!=256)continue;break r}break}f[r|0]=1;break r}f[w|0]=r,f[v|0]=0}if(_=_-1|0,(n|0)==256)break}for(A=0;n=s+1760|0,r=o[e+(A>>>3|0)|0],f[n+A|0]=r>>>(A&6)&1,_=n,n=A|1,f[_+n|0]=r>>>(n&7)&1,A=A+2|0,(A|0)!=256;);for(n=0,_=254;;){e=n,n=n+1|0,r=s+1760|0,g=r+e|0;r:{if(!o[g|0]|e>>>0>254)break r;a=n+r|0,r=f[a|0];t:{if(!r)break t;if(h=r<<1,A=f[g|0],r=h+A|0,(r|0)<=15){f[g|0]=r,f[a|0]=0;break t}if(r=A-h|0,(r|0)<-15)break r;for(f[g|0]=r,A=n;;){if(r=(s+1760|0)+A|0,!o[r|0]){f[r|0]=1;break t}if(f[r|0]=0,A=A+1|0,(A|0)==256)break}}if(!_)break r;A=e+2|0,v=A+(s+1760|0)|0,r=f[v|0];t:{if(!r)break t;if(a=r<<2,h=f[g|0],r=a+h|0,(r|0)>=16){if(r=h-a|0,(r|0)<-15)break r;for(f[g|0]=r;;){if(r=(s+1760|0)+A|0,o[r|0]){if(f[r|0]=0,A=A+1|0,(A|0)!=256)continue;break t}break}f[r|0]=1;break t}f[g|0]=r,f[v|0]=0}if(D=(_>>>0>=5?5:_)+1|0,(D|0)==2)break r;A=e+3|0,v=A+(s+1760|0)|0,r=f[v|0];t:{if(!r)break t;if(a=r<<3,h=f[g|0],r=a+h|0,(r|0)>=16){if(r=h-a|0,(r|0)<-15)break r;for(f[g|0]=r;;){if(r=(s+1760|0)+A|0,o[r|0]){if(f[r|0]=0,A=A+1|0,(A|0)!=256)continue;break t}break}f[r|0]=1;break t}f[g|0]=r,f[v|0]=0}if((D|0)==3)break r;A=e+4|0,v=A+(s+1760|0)|0,r=f[v|0];t:{if(!r)break t;if(a=r<<4,h=f[g|0],r=a+h|0,(r|0)>=16){if(r=h-a|0,(r|0)<-15)break r;for(f[g|0]=r;;){if(r=(s+1760|0)+A|0,o[r|0]){if(f[r|0]=0,A=A+1|0,(A|0)!=256)continue;break t}break}f[r|0]=1;break t}f[g|0]=r,f[v|0]=0}if((D|0)==4)break r;A=e+5|0,v=A+(s+1760|0)|0,r=f[v|0];t:{if(!r)break t;if(a=r<<5,h=f[g|0],r=a+h|0,(r|0)>=16){if(r=h-a|0,(r|0)<-15)break r;for(f[g|0]=r;;){if(r=(s+1760|0)+A|0,o[r|0]){if(f[r|0]=0,A=A+1|0,(A|0)!=256)continue;break t}break}f[r|0]=1;break t}f[g|0]=r,f[v|0]=0}if((D|0)==5||(A=e+6|0,a=A+(s+1760|0)|0,e=f[a|0],!e))break r;if(h=e<<6,r=f[g|0],e=h+r|0,(e|0)>=16){if(e=r-h|0,(e|0)<-15)break r;for(f[g|0]=e;;){if(e=(s+1760|0)+A|0,o[e|0]){if(f[e|0]=0,A=A+1|0,(A|0)!=256)continue;break r}break}f[e|0]=1;break r}f[g|0]=e,f[a|0]=0}if(_=_-1|0,(n|0)==256)break}for(r=s+480|0,J2(r,B),n=t[B+36>>2],t[s+192>>2]=t[B+32>>2],t[s+196>>2]=n,n=t[B+28>>2],t[s+184>>2]=t[B+24>>2],t[s+188>>2]=n,n=t[B+20>>2],t[s+176>>2]=t[B+16>>2],t[s+180>>2]=n,n=t[B+12>>2],t[s+168>>2]=t[B+8>>2],t[s+172>>2]=n,n=t[B+4>>2],t[s+160>>2]=t[B>>2],t[s+164>>2]=n,n=t[B+44>>2],t[s+200>>2]=t[B+40>>2],t[s+204>>2]=n,n=t[B+52>>2],t[s+208>>2]=t[B+48>>2],t[s+212>>2]=n,n=t[B+60>>2],t[s+216>>2]=t[B+56>>2],t[s+220>>2]=n,e=B- -64|0,n=t[e+4>>2],t[s+224>>2]=t[e>>2],t[s+228>>2]=n,n=t[B+76>>2],t[s+232>>2]=t[B+72>>2],t[s+236>>2]=n,n=t[B+84>>2],t[s+240>>2]=t[B+80>>2],t[s+244>>2]=n,n=t[B+92>>2],t[s+248>>2]=t[B+88>>2],t[s+252>>2]=n,n=t[B+100>>2],t[s+256>>2]=t[B+96>>2],t[s+260>>2]=n,n=t[B+108>>2],t[s+264>>2]=t[B+104>>2],t[s+268>>2]=n,n=t[B+116>>2],t[s+272>>2]=t[B+112>>2],t[s+276>>2]=n,A=s+320|0,e=s+160|0,v1(A,e),q=s+440|0,A0(s,A,q),S=s+360|0,I=s+400|0,A0(s+40|0,S,I),A0(s+80|0,I,q),A0(s+120|0,A,S),A1(A,s,r),A0(e,A,q),Y=s+200|0,A0(Y,S,I),N=s+240|0,A0(N,I,q),M=s+280|0,A0(M,A,S),n=s+640|0,J2(n,e),A1(A,s,n),A0(e,A,q),A0(Y,S,I),A0(N,I,q),A0(M,A,S),n=s+800|0,J2(n,e),A1(A,s,n),A0(e,A,q),A0(Y,S,I),A0(N,I,q),A0(M,A,S),n=s+960|0,J2(n,e),A1(A,s,n),A0(e,A,q),A0(Y,S,I),A0(N,I,q),A0(M,A,S),n=s+1120|0,J2(n,e),A1(A,s,n),A0(e,A,q),A0(Y,S,I),A0(N,I,q),A0(M,A,S),n=s+1280|0,J2(n,e),A1(A,s,n),A0(e,A,q),A0(Y,S,I),A0(N,I,q),A0(M,A,S),n=s+1440|0,J2(n,e),A1(A,s,n),A0(e,A,q),A0(Y,S,I),A0(N,I,q),A0(M,A,S),J2(s+1600|0,e),t[u+32>>2]=0,t[u+36>>2]=0,t[u+24>>2]=0,t[u+28>>2]=0,t[u+16>>2]=0,t[u+20>>2]=0,t[u+8>>2]=0,t[u+12>>2]=0,t[u>>2]=0,t[u+4>>2]=0,t[u+44>>2]=0,t[u+48>>2]=0,u0=u+40|0,t[u0>>2]=1,t[u+52>>2]=0,t[u+56>>2]=0,t[u+60>>2]=0,t[u+64>>2]=0,t[u+68>>2]=0,t[u+72>>2]=0,t[u+84>>2]=0,t[u+88>>2]=0,t[u+76>>2]=0,t[u+80>>2]=1,t[u+92>>2]=0,t[u+96>>2]=0,t[u+100>>2]=0,t[u+104>>2]=0,t[u+108>>2]=0,t[u+112>>2]=0,t[u+116>>2]=0,w0=u+80|0,_=255;;){r:{t:{n=s+2016|0;n:{if(o[n+_|0]||(e=s+1760|0,o[e+_|0]))break n;if(r=n,n=_-1|0,!(o[r+n|0]|o[n+e|0]))break t;_=n}if((_|0)<0)break r;for(;;){r=s+320|0,v1(r,u),n=_,A=f[n+(s+2016|0)|0];n:{if((A|0)>0){e=s+160|0,A0(e,r,q),A0(Y,S,I),A0(N,I,q),A0(M,r,S),A1(r,e,(s+480|0)+i2((A&254)>>>1|0,160)|0);break n}if((A|0)>=0)break n;e=s+160|0,r=s+320|0,A0(e,r,q),A0(Y,S,I),A0(N,I,q),A0(M,r,S),dn(r,e,(s+480|0)+i2((0-A&254)>>>1|0,160)|0)}s0=f[n+(s+1760|0)|0];n:{if((s0|0)>0){e=s+160|0,r=s+320|0,A0(e,r,q),A0(Y,S,I),A0(N,I,q),A0(M,r,S),w6(r,e,i2((s0&254)>>>1|0,120)+1728|0);break n}if((s0|0)>=0)break n;h0=s+320|0,A0(s+160|0,h0,q),A0(Y,S,I),A0(N,I,q),A0(M,h0,S),Q=t[s+160>>2],G=t[s+200>>2],K=t[s+164>>2],z=t[s+204>>2],$=t[s+168>>2],V=t[s+208>>2],W=t[s+172>>2],e0=t[s+212>>2],i0=t[s+176>>2],B=t[s+216>>2],w=t[s+180>>2],g=t[s+220>>2],D=t[s+184>>2],v=t[s+224>>2],a=t[s+188>>2],h=t[s+228>>2],_=t[s+192>>2],A=t[s+232>>2],r=t[s+236>>2],e=t[s+196>>2],t[s+396>>2]=r-e,t[s+392>>2]=A-_,t[s+388>>2]=h-a,t[s+384>>2]=v-D,t[s+380>>2]=g-w,t[s+376>>2]=B-i0,t[s+372>>2]=e0-W,t[s+368>>2]=V-$,t[s+364>>2]=z-K,t[s+360>>2]=G-Q,t[s+356>>2]=e+r,t[s+352>>2]=A+_,t[s+348>>2]=h+a,t[s+344>>2]=v+D,t[s+340>>2]=g+w,t[s+336>>2]=B+i0,t[s+332>>2]=W+e0,t[s+328>>2]=$+V,t[s+324>>2]=K+z,t[s+320>>2]=Q+G,e=i2((0-s0&254)>>>1|0,120)+1728|0,A0(I,h0,e+40|0),A0(S,S,e),A0(q,e+80|0,M),T0=t[s+276>>2],P0=t[s+272>>2],s0=t[s+268>>2],h0=t[s+264>>2],D=t[s+260>>2],v=t[s+256>>2],a=t[s+252>>2],h=t[s+248>>2],_=t[s+244>>2],A=t[s+240>>2],y0=t[s+360>>2],f0=t[s+400>>2],B0=t[s+364>>2],c0=t[s+404>>2],j0=t[s+368>>2],d0=t[s+408>>2],Q=t[s+372>>2],G=t[s+412>>2],K=t[s+376>>2],z=t[s+416>>2],$=t[s+380>>2],V=t[s+420>>2],W=t[s+384>>2],e0=t[s+424>>2],i0=t[s+388>>2],B=t[s+428>>2],w=t[s+392>>2],g=t[s+432>>2],r=t[s+396>>2],e=t[s+436>>2],t[s+396>>2]=r+e,t[s+392>>2]=g+w,t[s+388>>2]=B+i0,t[s+384>>2]=W+e0,t[s+380>>2]=$+V,t[s+376>>2]=K+z,t[s+372>>2]=Q+G,t[s+368>>2]=j0+d0,t[s+364>>2]=B0+c0,t[s+360>>2]=y0+f0,t[s+356>>2]=e-r,t[s+352>>2]=g-w,t[s+348>>2]=B-i0,t[s+344>>2]=e0-W,t[s+340>>2]=V-$,t[s+336>>2]=z-K,t[s+332>>2]=G-Q,t[s+328>>2]=d0-j0,t[s+324>>2]=c0-B0,t[s+320>>2]=f0-y0,Q=A<<1,G=t[s+440>>2],t[s+400>>2]=Q-G,K=_<<1,z=t[s+444>>2],t[s+404>>2]=K-z,$=h<<1,V=t[s+448>>2],t[s+408>>2]=$-V,W=a<<1,e0=t[s+452>>2],t[s+412>>2]=W-e0,i0=v<<1,B=t[s+456>>2],t[s+416>>2]=i0-B,w=D<<1,g=t[s+460>>2],t[s+420>>2]=w-g,D=h0<<1,v=t[s+464>>2],t[s+424>>2]=D-v,a=s0<<1,h=t[s+468>>2],t[s+428>>2]=a-h,_=P0<<1,A=t[s+472>>2],t[s+432>>2]=_-A,r=T0<<1,e=t[s+476>>2],t[s+436>>2]=r-e,t[s+440>>2]=Q+G,t[s+444>>2]=K+z,t[s+448>>2]=$+V,t[s+452>>2]=W+e0,t[s+456>>2]=B+i0,t[s+460>>2]=g+w,t[s+464>>2]=v+D,t[s+468>>2]=h+a,t[s+472>>2]=A+_,t[s+476>>2]=e+r}if(A0(u,s+320|0,q),A0(u0,S,I),A0(w0,I,q),_=n-1|0,!((n|0)>0))break}break r}if(_=_-2|0,n)continue}break}X=s+2272|0,n=o0+288|0,be(n,u),u=(I0=-1,M0=Vr(n,i),L0=(i|0)==(n|0),(L0?I0:M0)|kr(i,n,32))}return X=o0+592|0,u}function Y5(i,n){i=i|0,n=n|0;var e=0,r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0,z=0,$=0,V=0,W=0,e0=0,i0=0,o0=0,s0=0,h0=0,u0=0,y0=0,f0=0,B0=0,c0=0,j0=0,d0=0,w0=0,T0=0,P0=0,I0=0,M0=0,L0=0,E0=0,R0=0,F0=0,Q0=0,O0=0,X0=0,K0=0,z0=0,Z0=0,W0=0,b0=0,e2=0,r2=0,$0=0,V0=0,o2=0,s2=0,h2=0,y2=0,f2=0,a2=0,B2=0,v2=0,j2=0,q2=0,I2=0,x2=0,E2=0,H2=0,L2=0,X2=0,U2=0,n1=0,o1=0,s1=0,D1=0,C1=0;s=X-256|0,X=s,H2=-1;e:{if(qt(n)||(e=s+96|0,e4(e,n))||!k6(e))break e;H2=0,y0=t[s+172>>2],t[s+36>>2]=0-y0,M=t[s+168>>2],t[s+32>>2]=0-M,f0=t[s+164>>2],t[s+28>>2]=0-f0,Y=t[s+160>>2],t[s+24>>2]=0-Y,B0=t[s+156>>2],t[s+20>>2]=0-B0,N=t[s+152>>2],t[s+16>>2]=0-N,c0=t[s+148>>2],t[s+12>>2]=0-c0,Q=t[s+144>>2],t[s+8>>2]=0-Q,j0=t[s+140>>2],t[s+4>>2]=0-j0,A=t[s+136>>2],t[s>>2]=1-A,pr(s,s),G=t[s+4>>2],s0=G>>31,K=B0<<1,X0=K>>31,n=T(G,s0,K,X0),e=c,I=t[s>>2],z=I>>31,$=Y>>31,r=T(I,z,Y,$),n=r+n|0,e=c+e|0,e=n>>>0<r>>>0?e+1|0:e,V=t[s+8>>2],d0=V>>31,W=N>>31,_=T(V,d0,N,W),r=_+n|0,n=c+e|0,n=r>>>0<_>>>0?n+1|0:n,e=r,h0=t[s+12>>2],P0=h0>>31,L0=c0<<1,K0=L0>>31,r=T(h0,P0,L0,K0),e=e+r|0,n=c+n|0,n=e>>>0<r>>>0?n+1|0:n,w0=t[s+16>>2],E0=w0>>31,e0=Q>>31,r=T(w0,E0,Q,e0),e=r+e|0,n=c+n|0,n=e>>>0<r>>>0?n+1|0:n,_=t[s+20>>2],v2=_,z0=_>>31,R0=j0<<1,Z0=R0>>31,q=T(_,z0,R0,Z0),e=q+e|0,r=c+n|0,r=e>>>0<q>>>0?r+1|0:r,v=t[s+24>>2],j2=v,f2=v>>31,q=A+1|0,i0=q>>31,A=T(v,f2,q,i0),n=A+e|0,e=c+r|0,e=n>>>0<A>>>0?e+1|0:e,W0=t[s+28>>2],D=i2(W0,19),I0=D>>31,F0=y0<<1,b0=F0>>31,A=T(D,I0,F0,b0),r=A+n|0,n=c+e|0,n=r>>>0<A>>>0?n+1|0:n,e=r,L2=t[s+32>>2],a=i2(L2,19),T0=a>>31,o0=M>>31,r=T(a,T0,M,o0),e=e+r|0,n=c+n|0,n=e>>>0<r>>>0?n+1|0:n,X2=t[s+36>>2],w=i2(X2,19),u0=w>>31,Q0=f0<<1,e2=Q0>>31,r=T(w,u0,Q0,e2),e=r+e|0,n=c+n|0,u=e,A=e>>>0<r>>>0?n+1|0:n,n=T(N,W,G,s0),e=c,r2=B0>>31,h=T(I,z,B0,r2),n=h+n|0,r=c+e|0,r=n>>>0<h>>>0?r+1|0:r,$0=c0>>31,h=T(V,d0,c0,$0),n=h+n|0,e=c+r|0,e=n>>>0<h>>>0?e+1|0:e,h=T(Q,e0,h0,P0),r=h+n|0,n=c+e|0,n=r>>>0<h>>>0?n+1|0:n,e=r,V0=j0>>31,r=T(w0,E0,j0,V0),e=e+r|0,n=c+n|0,n=e>>>0<r>>>0?n+1|0:n,r=T(q,i0,_,z0),e=r+e|0,n=c+n|0,n=e>>>0<r>>>0?n+1|0:n,v=i2(v,19),O0=v>>31,o2=y0>>31,h=T(v,O0,y0,o2),e=h+e|0,r=c+n|0,r=e>>>0<h>>>0?r+1|0:r,h=T(M,o0,D,I0),n=h+e|0,e=c+r|0,e=n>>>0<h>>>0?e+1|0:e,s2=f0>>31,h=T(a,T0,f0,s2),r=h+n|0,n=c+e|0,n=r>>>0<h>>>0?n+1|0:n,e=r,r=T(w,u0,Y,$),e=e+r|0,n=c+n|0,q2=e,M0=e>>>0<r>>>0?n+1|0:n,n=T(G,s0,L0,K0),r=c,h=T(I,z,N,W),e=h+n|0,n=c+r|0,n=e>>>0<h>>>0?n+1|0:n,h=T(Q,e0,V,d0),e=h+e|0,r=c+n|0,r=e>>>0<h>>>0?r+1|0:r,h=T(h0,P0,R0,Z0),n=h+e|0,e=c+r|0,e=n>>>0<h>>>0?e+1|0:e,h=T(q,i0,w0,E0),r=h+n|0,n=c+e|0,n=r>>>0<h>>>0?n+1|0:n,e=r,h=i2(_,19),h2=h>>31,r=T(h,h2,F0,b0),e=e+r|0,n=c+n|0,n=e>>>0<r>>>0?n+1|0:n,r=T(M,o0,v,O0),e=r+e|0,n=c+n|0,n=e>>>0<r>>>0?n+1|0:n,_=T(D,I0,Q0,e2),e=_+e|0,r=c+n|0,r=e>>>0<_>>>0?r+1|0:r,_=T(a,T0,Y,$),n=_+e|0,e=c+r|0,e=n>>>0<_>>>0?e+1|0:e,_=T(w,u0,K,X0),r=_+n|0,n=c+e|0,U2=r,n=r>>>0<_>>>0?n+1|0:n,n1=n,r=r+33554432|0,n=r>>>0<33554432?n+1|0:n,o1=r,s1=n,r=(n&67108863)<<6|r>>>26,_=r+q2|0,n=(n>>26)+M0|0,q2=_,n=r>>>0>_>>>0?n+1|0:n,_=_+16777216|0,r=_>>>0<16777216?n+1|0:n,D1=_,e=r>>25,_=(r&33554431)<<7|_>>>25,r=_+u|0,n=e+A|0,n=r>>>0<_>>>0?n+1|0:n,e=r+33554432|0,n=e>>>0<33554432?n+1|0:n,S=e,_=n,t[s+72>>2]=r-(e&-67108864),n=T(G,s0,R0,Z0),e=c,A=T(I,z,Q,e0),n=A+n|0,r=c+e|0,r=n>>>0<A>>>0?r+1|0:r,A=T(q,i0,V,d0),e=A+n|0,n=c+r|0,n=e>>>0<A>>>0?n+1|0:n,A=i2(h0,19),y2=A>>31,r=T(A,y2,F0,b0),e=r+e|0,n=c+n|0,n=e>>>0<r>>>0?n+1|0:n,M0=i2(w0,19),a2=M0>>31,u=T(M0,a2,M,o0),r=u+e|0,e=c+n|0,e=r>>>0<u>>>0?e+1|0:e,u=T(Q0,e2,h,h2),r=u+r|0,n=c+e|0,n=r>>>0<u>>>0?n+1|0:n,u=T(Y,$,v,O0),e=u+r|0,r=c+n|0,r=e>>>0<u>>>0?r+1|0:r,u=T(D,I0,K,X0),e=u+e|0,n=c+r|0,n=e>>>0<u>>>0?n+1|0:n,r=T(a,T0,N,W),e=r+e|0,n=c+n|0,n=e>>>0<r>>>0?n+1|0:n,u=T(w,u0,L0,K0),r=u+e|0,e=c+n|0,g=r,I2=r>>>0<u>>>0?e+1|0:e,n=T(q,i0,G,s0),e=c,u=T(I,z,j0,V0),r=u+n|0,n=c+e|0,n=r>>>0<u>>>0?n+1|0:n,e=i2(V,19),u=e,B2=e>>31,B=T(e,B2,y0,o2),e=B+r|0,r=c+n|0,r=e>>>0<B>>>0?r+1|0:r,B=T(M,o0,A,y2),e=B+e|0,n=c+r|0,n=e>>>0<B>>>0?n+1|0:n,r=T(M0,a2,f0,s2),e=r+e|0,n=c+n|0,n=e>>>0<r>>>0?n+1|0:n,B=T(Y,$,h,h2),r=B+e|0,e=c+n|0,e=r>>>0<B>>>0?e+1|0:e,B=T(v,O0,B0,r2),r=B+r|0,n=c+e|0,n=r>>>0<B>>>0?n+1|0:n,B=T(N,W,D,I0),e=B+r|0,r=c+n|0,r=e>>>0<B>>>0?r+1|0:r,B=T(a,T0,c0,$0),e=B+e|0,n=c+r|0,n=e>>>0<B>>>0?n+1|0:n,r=T(w,u0,Q,e0),e=r+e|0,n=c+n|0,x2=e,B=e>>>0<r>>>0?n+1|0:n,n=i2(G,19),n=T(n,n>>31,F0,b0),e=c,r=T(I,z,q,i0),n=r+n|0,e=c+e|0,e=n>>>0<r>>>0?e+1|0:e,u=T(M,o0,u,B2),r=u+n|0,n=c+e|0,A=T(A,y2,Q0,e2),e=A+r|0,r=c+(r>>>0<u>>>0?n+1|0:n)|0,r=e>>>0<A>>>0?r+1|0:r,A=T(Y,$,M0,a2),e=A+e|0,n=c+r|0,n=e>>>0<A>>>0?n+1|0:n,r=T(K,X0,h,h2),e=r+e|0,n=c+n|0,n=e>>>0<r>>>0?n+1|0:n,A=T(N,W,v,O0),r=A+e|0,e=c+n|0,e=r>>>0<A>>>0?e+1|0:e,A=T(D,I0,L0,K0),r=A+r|0,n=c+e|0,n=r>>>0<A>>>0?n+1|0:n,A=T(a,T0,Q,e0),e=A+r|0,r=c+n|0,r=e>>>0<A>>>0?r+1|0:r,A=T(w,u0,R0,Z0),e=A+e|0,n=c+r|0,u=e,n=e>>>0<A>>>0?n+1|0:n,y2=n,e=e+33554432|0,n=e>>>0<33554432?n+1|0:n,B2=e,C1=n,r=n>>26,n=(n&67108863)<<6|e>>>26,A=n+x2|0,e=r+B|0,B=A,e=n>>>0>A>>>0?e+1|0:e,n=e,A=A+16777216|0,n=A>>>0<16777216?n+1|0:n,x2=A,A=(n&33554431)<<7|A>>>25,e=A+g|0,n=(n>>25)+I2|0,n=e>>>0<A>>>0?n+1|0:n,r=e,e=e+33554432|0,n=e>>>0<33554432?n+1|0:n,I2=e,A=n,t[s+56>>2]=r-(e&-67108864),n=T(Y,$,G,s0),r=c,g=T(I,z,f0,s2),e=g+n|0,n=c+r|0,n=e>>>0<g>>>0?n+1|0:n,r=T(V,d0,B0,r2),e=r+e|0,n=c+n|0,n=e>>>0<r>>>0?n+1|0:n,r=T(N,W,h0,P0),e=r+e|0,n=c+n|0,n=e>>>0<r>>>0?n+1|0:n,g=T(w0,E0,c0,$0),e=g+e|0,r=c+n|0,r=e>>>0<g>>>0?r+1|0:r,g=T(Q,e0,v2,z0),n=g+e|0,e=c+r|0,e=n>>>0<g>>>0?e+1|0:e,g=T(j0,V0,j2,f2),r=g+n|0,n=c+e|0,n=r>>>0<g>>>0?n+1|0:n,e=r,E2=W0>>31,r=T(W0,E2,q,i0),e=e+r|0,n=c+n|0,n=e>>>0<r>>>0?n+1|0:n,r=T(a,T0,y0,o2),e=r+e|0,n=c+n|0,n=e>>>0<r>>>0?n+1|0:n,r=e,e=T(w,u0,M,o0),g=r+e|0,r=c+n|0,e=e>>>0>g>>>0?r+1|0:r,n=_>>26,_=(_&67108863)<<6|S>>>26,r=_+g|0,e=n+e|0,S=r,e=r>>>0<_>>>0?e+1|0:e,n=e,r=r+16777216|0,n=r>>>0<16777216?n+1|0:n,g=r,_=n,t[s+76>>2]=S-(r&-33554432),n=T(Q,e0,G,s0),e=c,S=T(I,z,c0,$0),n=S+n|0,r=c+e|0,r=n>>>0<S>>>0?r+1|0:r,S=T(V,d0,j0,V0),n=S+n|0,e=c+r|0,e=n>>>0<S>>>0?e+1|0:e,S=T(q,i0,h0,P0),r=S+n|0,n=c+e|0,n=r>>>0<S>>>0?n+1|0:n,e=r,r=T(M0,a2,y0,o2),e=e+r|0,n=c+n|0,n=e>>>0<r>>>0?n+1|0:n,r=T(M,o0,h,h2),e=r+e|0,n=c+n|0,n=e>>>0<r>>>0?n+1|0:n,v=T(v,O0,f0,s2),e=v+e|0,r=c+n|0,D=T(Y,$,D,I0),n=D+e|0,e=c+(e>>>0<v>>>0?r+1|0:r)|0,a=T(a,T0,B0,r2),r=a+n|0,n=c+(n>>>0<D>>>0?e+1|0:e)|0,n=r>>>0<a>>>0?n+1|0:n,e=r,r=T(w,u0,N,W),e=e+r|0,n=c+n|0,n=e>>>0<r>>>0?n+1|0:n,S=e,e=A>>26,r=(A&67108863)<<6|I2>>>26,A=S+r|0,n=n+e|0,a=A,n=r>>>0>A>>>0?n+1|0:n,e=A+16777216|0,r=e>>>0<16777216?n+1|0:n,D=e,A=r,t[s+60>>2]=a-(e&-33554432),n=T(G,s0,Q0,e2),r=c,a=T(I,z,M,o0),e=a+n|0,n=c+r|0,n=e>>>0<a>>>0?n+1|0:n,r=T(Y,$,V,d0),e=r+e|0,n=c+n|0,n=e>>>0<r>>>0?n+1|0:n,a=T(h0,P0,K,X0),e=a+e|0,r=c+n|0,r=e>>>0<a>>>0?r+1|0:r,a=T(N,W,w0,E0),n=a+e|0,e=c+r|0,e=n>>>0<a>>>0?e+1|0:e,a=T(L0,K0,v2,z0),r=a+n|0,n=c+e|0,n=r>>>0<a>>>0?n+1|0:n,e=r,r=T(Q,e0,j2,f2),e=e+r|0,n=c+n|0,n=e>>>0<r>>>0?n+1|0:n,r=e,e=T(W0,E2,R0,Z0),r=r+e|0,n=c+n|0,n=e>>>0>r>>>0?n+1|0:n,e=L2,a=e,v=e>>31,K=T(e,v,q,i0),e=K+r|0,r=c+n|0,w=T(w,u0,F0,b0),n=w+e|0,e=c+(e>>>0<K>>>0?r+1|0:r)|0,r=n>>>0<w>>>0?e+1|0:e,e=n,n=_>>25,_=(_&33554431)<<7|g>>>25,e=e+_|0,n=n+r|0,n=e>>>0<_>>>0?n+1|0:n,r=e,e=e+33554432|0,n=e>>>0<33554432?n+1|0:n,w=e,_=n,t[s+80>>2]=r-(e&-67108864),K=q2-(D1&-33554432)|0,e=A>>25,A=(A&33554431)<<7|D>>>25,n=o1&-67108864,r=A+(U2-n|0)|0,n=e+(n1-((n>>>0>U2>>>0)+s1|0)|0)|0,n=r>>>0<A>>>0?n+1|0:n,e=r+33554432|0,n=e>>>0<33554432?n+1|0:n,n=((n&67108863)<<6|e>>>26)+K|0,t[s+68>>2]=n,t[s+64>>2]=r-(e&-67108864),n=T(M,o0,G,s0),r=c,A=T(I,z,y0,o2),e=A+n|0,n=c+r|0,n=e>>>0<A>>>0?n+1|0:n,A=T(V,d0,f0,s2),r=A+e|0,e=c+n|0,e=r>>>0<A>>>0?e+1|0:e,A=T(Y,$,h0,P0),n=A+r|0,r=c+e|0,r=n>>>0<A>>>0?r+1|0:r,A=T(w0,E0,B0,r2),e=A+n|0,n=c+r|0,n=e>>>0<A>>>0?n+1|0:n,r=T(N,W,v2,z0),e=r+e|0,n=c+n|0,n=e>>>0<r>>>0?n+1|0:n,r=T(c0,$0,j2,f2),e=r+e|0,n=c+n|0,n=e>>>0<r>>>0?n+1|0:n,A=T(Q,e0,W0,E2),r=A+e|0,e=c+n|0,e=r>>>0<A>>>0?e+1|0:e,n=T(a,v,j0,V0),A=n+r|0,r=c+e|0,r=n>>>0>A>>>0?r+1|0:r,e=A,n=X2,A=T(n,n>>31,q,i0),e=e+A|0,n=c+r|0,n=e>>>0<A>>>0?n+1|0:n,r=e,e=_>>26,_=(_&67108863)<<6|w>>>26,r=r+_|0,n=n+e|0,n=r>>>0<_>>>0?n+1|0:n,e=r+16777216|0,n=e>>>0<16777216?n+1|0:n,t[s+84>>2]=r-(e&-33554432),_=B-(x2&-33554432)|0,r=B2&-67108864,A=u-r|0,I=y2-((r>>>0>u>>>0)+C1|0)|0,r=n,n=n>>25,n=T((r&33554431)<<7|e>>>25,n,19,0),r=n+A|0,e=c+I|0,n=n>>>0>r>>>0?e+1|0:e,e=r+33554432|0,n=e>>>0<33554432?n+1|0:n,n=((n&67108863)<<6|e>>>26)+_|0,t[s+52>>2]=n,t[s+48>>2]=r-(e&-67108864),V2(i,s+48|0)}return X=s+256|0,H2|0}function N5(i,n,e,r,A,_,s,h,a){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0,_=_|0,s=s|0,h=h|0,a=a|0;var u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0,z=0,$=0,V=0,W=0,e0=0,i0=0,o0=0,s0=0,h0=0;if(u=X-544|0,X=u,Ti(a,h,u+432|0),a=0,s>>>0>31)for(h=32;Ci(_+a|0,u+432|0),a=h,h=h+32|0,h>>>0<=s>>>0;);if(h=a|16,h>>>0<=s>>>0)for(;a=_+a|0,v=o[a|0]|o[a+1|0]<<8|(o[a+2|0]<<16|o[a+3|0]<<24),g=o[a+4|0]|o[a+5|0]<<8|(o[a+6|0]<<16|o[a+7|0]<<24),q=o[a+8|0]|o[a+9|0]<<8|(o[a+10|0]<<16|o[a+11|0]<<24),w=o[a+12|0]|o[a+13|0]<<8|(o[a+14|0]<<16|o[a+15|0]<<24),a=t[u+524>>2],t[u+392>>2]=t[u+520>>2],t[u+396>>2]=a,a=t[u+516>>2],t[u+384>>2]=t[u+512>>2],t[u+388>>2]=a,a=t[u+500>>2],t[u+368>>2]=t[u+496>>2],t[u+372>>2]=a,a=t[u+508>>2],t[u+376>>2]=t[u+504>>2],t[u+380>>2]=a,a=t[u+516>>2],t[u+352>>2]=t[u+512>>2],t[u+356>>2]=a,a=t[u+524>>2],t[u+360>>2]=t[u+520>>2],t[u+364>>2]=a,a=u+528|0,H0(a,u+368|0,u+352|0),B=t[u+540>>2],t[u+520>>2]=t[u+536>>2],t[u+524>>2]=B,B=t[u+532>>2],t[u+512>>2]=t[u+528>>2],t[u+516>>2]=B,B=t[u+484>>2],t[u+336>>2]=t[u+480>>2],t[u+340>>2]=B,B=t[u+492>>2],t[u+344>>2]=t[u+488>>2],t[u+348>>2]=B,B=t[u+500>>2],t[u+320>>2]=t[u+496>>2],t[u+324>>2]=B,B=t[u+508>>2],t[u+328>>2]=t[u+504>>2],t[u+332>>2]=B,H0(a,u+336|0,u+320|0),B=t[u+540>>2],t[u+504>>2]=t[u+536>>2],t[u+508>>2]=B,B=t[u+532>>2],t[u+496>>2]=t[u+528>>2],t[u+500>>2]=B,B=t[u+468>>2],t[u+304>>2]=t[u+464>>2],t[u+308>>2]=B,B=t[u+476>>2],t[u+312>>2]=t[u+472>>2],t[u+316>>2]=B,B=t[u+484>>2],t[u+288>>2]=t[u+480>>2],t[u+292>>2]=B,B=t[u+492>>2],t[u+296>>2]=t[u+488>>2],t[u+300>>2]=B,H0(a,u+304|0,u+288|0),B=t[u+540>>2],t[u+488>>2]=t[u+536>>2],t[u+492>>2]=B,B=t[u+532>>2],t[u+480>>2]=t[u+528>>2],t[u+484>>2]=B,B=t[u+452>>2],t[u+272>>2]=t[u+448>>2],t[u+276>>2]=B,B=t[u+460>>2],t[u+280>>2]=t[u+456>>2],t[u+284>>2]=B,B=t[u+468>>2],t[u+256>>2]=t[u+464>>2],t[u+260>>2]=B,B=t[u+476>>2],t[u+264>>2]=t[u+472>>2],t[u+268>>2]=B,H0(a,u+272|0,u+256|0),B=t[u+540>>2],t[u+472>>2]=t[u+536>>2],t[u+476>>2]=B,B=t[u+532>>2],t[u+464>>2]=t[u+528>>2],t[u+468>>2]=B,B=t[u+436>>2],t[u+240>>2]=t[u+432>>2],t[u+244>>2]=B,B=t[u+444>>2],t[u+248>>2]=t[u+440>>2],t[u+252>>2]=B,B=t[u+452>>2],t[u+224>>2]=t[u+448>>2],t[u+228>>2]=B,B=t[u+460>>2],t[u+232>>2]=t[u+456>>2],t[u+236>>2]=B,H0(a,u+240|0,u+224|0),B=t[u+540>>2],t[u+456>>2]=t[u+536>>2],t[u+460>>2]=B,B=t[u+532>>2],t[u+448>>2]=t[u+528>>2],t[u+452>>2]=B,B=t[u+388>>2],t[u+208>>2]=t[u+384>>2],t[u+212>>2]=B,B=t[u+396>>2],t[u+216>>2]=t[u+392>>2],t[u+220>>2]=B,B=t[u+436>>2],t[u+192>>2]=t[u+432>>2],t[u+196>>2]=B,B=t[u+444>>2],t[u+200>>2]=t[u+440>>2],t[u+204>>2]=B,H0(a,u+208|0,u+192|0),t[u+444>>2]=w^t[u+540>>2],t[u+440>>2]=q^t[u+536>>2],t[u+436>>2]=g^t[u+532>>2],t[u+432>>2]=v^t[u+528>>2],a=h,h=h+16|0,h>>>0<=s>>>0;);h=s&15,h&&(v=16-h|0,v&&k2(h|u+416,0,v),h&&_2(u+416|0,_+a|0,h),g=t[u+416>>2],q=t[u+420>>2],w=t[u+424>>2],B=t[u+428>>2],h=t[u+524>>2],a=t[u+520>>2],t[u+392>>2]=a,t[u+396>>2]=h,v=t[u+516>>2],_=t[u+512>>2],t[u+384>>2]=_,t[u+388>>2]=v,S=t[u+500>>2],t[u+176>>2]=t[u+496>>2],t[u+180>>2]=S,S=t[u+508>>2],t[u+184>>2]=t[u+504>>2],t[u+188>>2]=S,t[u+160>>2]=_,t[u+164>>2]=v,t[u+168>>2]=a,t[u+172>>2]=h,_=u+528|0,H0(_,u+176|0,u+160|0),h=t[u+540>>2],t[u+520>>2]=t[u+536>>2],t[u+524>>2]=h,h=t[u+532>>2],t[u+512>>2]=t[u+528>>2],t[u+516>>2]=h,h=t[u+484>>2],t[u+144>>2]=t[u+480>>2],t[u+148>>2]=h,h=t[u+492>>2],t[u+152>>2]=t[u+488>>2],t[u+156>>2]=h,h=t[u+500>>2],t[u+128>>2]=t[u+496>>2],t[u+132>>2]=h,h=t[u+508>>2],t[u+136>>2]=t[u+504>>2],t[u+140>>2]=h,H0(_,u+144|0,u+128|0),h=t[u+540>>2],t[u+504>>2]=t[u+536>>2],t[u+508>>2]=h,h=t[u+532>>2],t[u+496>>2]=t[u+528>>2],t[u+500>>2]=h,h=t[u+468>>2],t[u+112>>2]=t[u+464>>2],t[u+116>>2]=h,h=t[u+476>>2],t[u+120>>2]=t[u+472>>2],t[u+124>>2]=h,h=t[u+484>>2],t[u+96>>2]=t[u+480>>2],t[u+100>>2]=h,h=t[u+492>>2],t[u+104>>2]=t[u+488>>2],t[u+108>>2]=h,H0(_,u+112|0,u+96|0),h=t[u+540>>2],t[u+488>>2]=t[u+536>>2],t[u+492>>2]=h,h=t[u+532>>2],t[u+480>>2]=t[u+528>>2],t[u+484>>2]=h,h=t[u+452>>2],t[u+80>>2]=t[u+448>>2],t[u+84>>2]=h,h=t[u+460>>2],t[u+88>>2]=t[u+456>>2],t[u+92>>2]=h,h=t[u+468>>2],t[u+64>>2]=t[u+464>>2],t[u+68>>2]=h,h=t[u+476>>2],t[u+72>>2]=t[u+472>>2],t[u+76>>2]=h,H0(_,u+80|0,u- -64|0),h=t[u+540>>2],t[u+472>>2]=t[u+536>>2],t[u+476>>2]=h,h=t[u+532>>2],t[u+464>>2]=t[u+528>>2],t[u+468>>2]=h,h=t[u+436>>2],t[u+48>>2]=t[u+432>>2],t[u+52>>2]=h,h=t[u+444>>2],t[u+56>>2]=t[u+440>>2],t[u+60>>2]=h,h=t[u+452>>2],t[u+32>>2]=t[u+448>>2],t[u+36>>2]=h,h=t[u+460>>2],t[u+40>>2]=t[u+456>>2],t[u+44>>2]=h,H0(_,u+48|0,u+32|0),h=t[u+540>>2],t[u+456>>2]=t[u+536>>2],t[u+460>>2]=h,h=t[u+532>>2],t[u+448>>2]=t[u+528>>2],t[u+452>>2]=h,h=t[u+388>>2],t[u+16>>2]=t[u+384>>2],t[u+20>>2]=h,h=t[u+396>>2],t[u+24>>2]=t[u+392>>2],t[u+28>>2]=h,h=t[u+436>>2],t[u>>2]=t[u+432>>2],t[u+4>>2]=h,h=t[u+444>>2],t[u+8>>2]=t[u+440>>2],t[u+12>>2]=h,H0(_,u+16|0,u),t[u+444>>2]=B^t[u+540>>2],t[u+440>>2]=w^t[u+536>>2],t[u+436>>2]=q^t[u+532>>2],t[u+432>>2]=g^t[u+528>>2]);e:{if(!i){if(a=16,h=0,e>>>0<16)break e;for(;Qi(u+528|0,n+h|0,u+432|0),h=a,a=h+16|0,a>>>0<=e>>>0;);break e}if(a=16,h=0,e>>>0<16)break e;for(;Qi(i+h|0,n+h|0,u+432|0),h=a,a=h+16|0,a>>>0<=e>>>0;);}a=e&15,a&&(q=i?i+h|0:u+528|0,h=n+h|0,_=u+432|0,n=X-240|0,X=n,v=a+(n+192|0)|0,g=16-a|0,w=!g,w||k2(v,0,g),B=!a,B||_2(n+192|0,h,a),S=t[_+16>>2],h=_- -64|0,I=t[h>>2],D=t[_+80>>2],M=t[_+32>>2],Y=t[_+48>>2],N=t[_+20>>2],Q=t[_+68>>2],G=t[_+84>>2],K=t[_+36>>2],z=t[_+52>>2],$=t[_+24>>2],V=t[_+72>>2],W=t[_+88>>2],e0=t[_+40>>2],i0=t[_+56>>2],o0=t[n+192>>2],s0=t[n+196>>2],h0=t[n+200>>2],t[n+204>>2]=t[_+44>>2]&t[_+60>>2]^(t[_+28>>2]^(t[_+76>>2]^(t[_+92>>2]^t[n+204>>2]))),t[n+200>>2]=e0&i0^(V^(W^h0)^$),t[n+196>>2]=K&z^(G^s0^Q^N),t[n+192>>2]=M&Y^(D^o0^I^S),w||k2(v,0,g),B||_2(q,n+192|0,a),v=t[n+192>>2],g=t[n+196>>2],q=t[n+200>>2],w=t[n+204>>2],a=t[_+92>>2],t[n+232>>2]=t[_+88>>2],t[n+236>>2]=a,a=t[_+84>>2],t[n+224>>2]=t[_+80>>2],t[n+228>>2]=a,a=t[h+4>>2],t[n+176>>2]=t[h>>2],t[n+180>>2]=a,a=t[_+76>>2],t[n+184>>2]=t[_+72>>2],t[n+188>>2]=a,a=t[_+84>>2],t[n+160>>2]=t[_+80>>2],t[n+164>>2]=a,a=t[_+92>>2],t[n+168>>2]=t[_+88>>2],t[n+172>>2]=a,a=n+208|0,H0(a,n+176|0,n+160|0),B=t[n+220>>2],t[_+88>>2]=t[n+216>>2],t[_+92>>2]=B,B=t[n+212>>2],t[_+80>>2]=t[n+208>>2],t[_+84>>2]=B,B=t[_+52>>2],t[n+144>>2]=t[_+48>>2],t[n+148>>2]=B,B=t[_+60>>2],t[n+152>>2]=t[_+56>>2],t[n+156>>2]=B,B=t[h+4>>2],t[n+128>>2]=t[h>>2],t[n+132>>2]=B,B=t[_+76>>2],t[n+136>>2]=t[_+72>>2],t[n+140>>2]=B,H0(a,n+144|0,n+128|0),B=t[n+220>>2],t[_+72>>2]=t[n+216>>2],t[_+76>>2]=B,B=t[n+212>>2],t[h>>2]=t[n+208>>2],t[h+4>>2]=B,h=t[_+36>>2],t[n+112>>2]=t[_+32>>2],t[n+116>>2]=h,h=t[_+44>>2],t[n+120>>2]=t[_+40>>2],t[n+124>>2]=h,h=t[_+52>>2],t[n+96>>2]=t[_+48>>2],t[n+100>>2]=h,h=t[_+60>>2],t[n+104>>2]=t[_+56>>2],t[n+108>>2]=h,H0(a,n+112|0,n+96|0),h=t[n+220>>2],t[_+56>>2]=t[n+216>>2],t[_+60>>2]=h,h=t[n+212>>2],t[_+48>>2]=t[n+208>>2],t[_+52>>2]=h,h=t[_+20>>2],t[n+80>>2]=t[_+16>>2],t[n+84>>2]=h,h=t[_+28>>2],t[n+88>>2]=t[_+24>>2],t[n+92>>2]=h,h=t[_+36>>2],t[n+64>>2]=t[_+32>>2],t[n+68>>2]=h,h=t[_+44>>2],t[n+72>>2]=t[_+40>>2],t[n+76>>2]=h,H0(a,n+80|0,n- -64|0),h=t[n+220>>2],t[_+40>>2]=t[n+216>>2],t[_+44>>2]=h,h=t[n+212>>2],t[_+32>>2]=t[n+208>>2],t[_+36>>2]=h,h=t[_+4>>2],t[n+48>>2]=t[_>>2],t[n+52>>2]=h,h=t[_+12>>2],t[n+56>>2]=t[_+8>>2],t[n+60>>2]=h,h=t[_+20>>2],t[n+32>>2]=t[_+16>>2],t[n+36>>2]=h,h=t[_+28>>2],t[n+40>>2]=t[_+24>>2],t[n+44>>2]=h,H0(a,n+48|0,n+32|0),h=t[n+220>>2],t[_+24>>2]=t[n+216>>2],t[_+28>>2]=h,h=t[n+212>>2],t[_+16>>2]=t[n+208>>2],t[_+20>>2]=h,h=t[n+228>>2],t[n+16>>2]=t[n+224>>2],t[n+20>>2]=h,h=t[n+236>>2],t[n+24>>2]=t[n+232>>2],t[n+28>>2]=h,h=t[_+4>>2],t[n>>2]=t[_>>2],t[n+4>>2]=h,h=t[_+12>>2],t[n+8>>2]=t[_+8>>2],t[n+12>>2]=h,H0(a,n+16|0,n),h=t[n+208>>2],a=t[n+212>>2],B=t[n+216>>2],t[_+12>>2]=w^t[n+220>>2],t[_+8>>2]=B^q,t[_+4>>2]=a^g,t[_>>2]=h^v,X=n+240|0),Ri(u+384|0,A,s,e,u+432|0),h=-1;e:{r:{if(n=A-16|0,n){if((n|0)==16)break r;break e}h=cr(u+384|0,r);break e}h=Vr(u+384|0,r)}return!e|(!i|!h)||k2(i,0,e),X=u+544|0,h|0}function A0(i,n,e){var r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0,z=0,$=0,V=0,W=0,e0=0,i0=0,o0=0,s0=0,h0=0,u0=0,y0=0,f0=0,B0=0,c0=0,j0=0,d0=0,w0=0,T0=0,P0=0,I0=0,M0=0,L0=0,E0=0,R0=0,F0=0,Q0=0,O0=0,X0=0,K0=0,z0=0,Z0=0,W0=0,b0=0,e2=0,r2=0,$0=0,V0=0,o2=0,s2=0,h2=0,y2=0,f2=0,a2=0,B2=0,v2=0,j2=0,q2=0,I2=0,x2=0,E2=0,H2=0,L2=0,X2=0,U2=0,n1=0,o1=0,s1=0;M=t[e+4>>2],e0=M>>31,f0=t[n+20>>2],i0=f0<<1,K0=i0>>31,r=T(M,e0,i0,K0),_=c,D=t[e>>2],Q=D>>31,Y=t[n+24>>2],G=Y>>31,S=T(D,Q,Y,G),A=S+r|0,r=c+_|0,r=A>>>0<S>>>0?r+1|0:r,K=t[e+8>>2],h0=K>>31,S=t[n+16>>2],z=S>>31,v=T(K,h0,S,z),A=v+A|0,_=c+r|0,_=A>>>0<v>>>0?_+1|0:_,o0=t[e+12>>2],B0=o0>>31,c0=t[n+12>>2],M0=c0<<1,z0=M0>>31,v=T(o0,B0,M0,z0),r=v+A|0,A=c+_|0,A=r>>>0<v>>>0?A+1|0:A,u0=t[e+16>>2],L0=u0>>31,v=t[n+8>>2],$=v>>31,I=T(u0,L0,v,$),_=I+r|0,r=c+A|0,r=_>>>0<I>>>0?r+1|0:r,A=_,j0=t[e+20>>2],Z0=j0>>31,d0=t[n+4>>2],E0=d0<<1,W0=E0>>31,_=T(j0,Z0,E0,W0),A=A+_|0,r=c+r|0,r=A>>>0<_>>>0?r+1|0:r,u=t[e+24>>2],q2=u,a2=u>>31,I=t[n>>2],V=I>>31,g=T(u,a2,I,V),_=g+A|0,A=c+r|0,A=_>>>0<g>>>0?A+1|0:A,b0=t[e+28>>2],q=i2(b0,19),w0=q>>31,T0=t[n+36>>2],R0=T0<<1,e2=R0>>31,g=T(q,w0,R0,e2),r=g+_|0,_=c+A|0,_=r>>>0<g>>>0?_+1|0:_,B2=t[e+32>>2],s=i2(B2,19),y0=s>>31,g=t[n+32>>2],W=g>>31,B=T(s,y0,g,W),A=B+r|0,r=c+_|0,r=A>>>0<B>>>0?r+1|0:r,I2=t[e+36>>2],B=i2(I2,19),s0=B>>31,P0=t[n+28>>2],F0=P0<<1,r2=F0>>31,e=T(B,s0,F0,r2),n=e+A|0,r=c+r|0,h=n,e=n>>>0<e>>>0?r+1|0:r,n=T(S,z,M,e0),r=c,$0=f0>>31,A=T(D,Q,f0,$0),n=A+n|0,_=c+r|0,_=n>>>0<A>>>0?_+1|0:_,V0=c0>>31,r=T(K,h0,c0,V0),n=r+n|0,A=c+_|0,A=n>>>0<r>>>0?A+1|0:A,_=T(v,$,o0,B0),n=_+n|0,r=c+A|0,r=n>>>0<_>>>0?r+1|0:r,o2=d0>>31,A=T(u0,L0,d0,o2),n=A+n|0,r=c+r|0,r=n>>>0<A>>>0?r+1|0:r,A=T(I,V,j0,Z0),n=A+n|0,r=c+r|0,r=n>>>0<A>>>0?r+1|0:r,u=i2(u,19),Q0=u>>31,s2=T0>>31,A=T(u,Q0,T0,s2),n=A+n|0,_=c+r|0,_=n>>>0<A>>>0?_+1|0:_,r=T(g,W,q,w0),n=r+n|0,A=c+_|0,A=n>>>0<r>>>0?A+1|0:A,h2=P0>>31,_=T(s,y0,P0,h2),n=_+n|0,r=c+A|0,r=n>>>0<_>>>0?r+1|0:r,A=T(B,s0,Y,G),n=A+n|0,r=c+r|0,x2=n,I0=n>>>0<A>>>0?r+1|0:r,n=T(M,e0,M0,z0),r=c,A=T(D,Q,S,z),n=A+n|0,r=c+r|0,r=n>>>0<A>>>0?r+1|0:r,A=T(v,$,K,h0),n=A+n|0,_=c+r|0,_=n>>>0<A>>>0?_+1|0:_,r=T(o0,B0,E0,W0),n=r+n|0,A=c+_|0,A=n>>>0<r>>>0?A+1|0:A,_=T(I,V,u0,L0),n=_+n|0,r=c+A|0,r=n>>>0<_>>>0?r+1|0:r,O0=i2(j0,19),y2=O0>>31,A=T(O0,y2,R0,e2),n=A+n|0,r=c+r|0,r=n>>>0<A>>>0?r+1|0:r,A=T(g,W,u,Q0),n=A+n|0,r=c+r|0,r=n>>>0<A>>>0?r+1|0:r,A=T(q,w0,F0,r2),n=A+n|0,_=c+r|0,_=n>>>0<A>>>0?_+1|0:_,r=T(s,y0,Y,G),n=r+n|0,A=c+_|0,A=n>>>0<r>>>0?A+1|0:A,_=T(B,s0,i0,K0),n=_+n|0,r=c+A|0,L2=n,r=n>>>0<_>>>0?r+1|0:r,X2=r,n=n+33554432|0,r=n>>>0<33554432?r+1|0:r,U2=n,n1=r,_=(r&67108863)<<6|n>>>26,n=_+x2|0,r=(r>>26)+I0|0,x2=n,r=n>>>0<_>>>0?r+1|0:r,n=n+16777216|0,_=n>>>0<16777216?r+1|0:r,o1=n,A=_>>25,_=(_&33554431)<<7|n>>>25,n=_+h|0,r=e+A|0,r=n>>>0<_>>>0?r+1|0:r,A=n,e=A+33554432|0,r=e>>>0<33554432?r+1|0:r,X0=e,n=r,t[i+24>>2]=A-(e&-67108864),e=T(M,e0,E0,W0),r=c,A=T(D,Q,v,$),e=A+e|0,_=c+r|0,_=e>>>0<A>>>0?_+1|0:_,r=e,e=T(I,V,K,h0),A=r+e|0,r=c+_|0,r=e>>>0>A>>>0?r+1|0:r,e=i2(o0,19),f2=e>>31,_=T(e,f2,R0,e2),A=_+A|0,r=c+r|0,r=A>>>0<_>>>0?r+1|0:r,I0=i2(u0,19),v2=I0>>31,h=T(g,W,I0,v2),_=h+A|0,A=c+r|0,A=_>>>0<h>>>0?A+1|0:A,h=T(F0,r2,O0,y2),_=h+_|0,r=c+A|0,r=_>>>0<h>>>0?r+1|0:r,h=T(Y,G,u,Q0),A=h+_|0,_=c+r|0,_=A>>>0<h>>>0?_+1|0:_,h=T(q,w0,i0,K0),A=h+A|0,r=c+_|0,r=A>>>0<h>>>0?r+1|0:r,_=T(s,y0,S,z),A=_+A|0,r=c+r|0,r=A>>>0<_>>>0?r+1|0:r,h=T(B,s0,M0,z0),_=h+A|0,A=c+r|0,w=_,E2=_>>>0<h>>>0?A+1|0:A,r=T(I,V,M,e0),A=c,h=T(D,Q,d0,o2),_=h+r|0,r=c+A|0,r=_>>>0<h>>>0?r+1|0:r,A=i2(K,19),h=A,j2=A>>31,a=T(A,j2,T0,s2),A=a+_|0,_=c+r|0,_=A>>>0<a>>>0?_+1|0:_,a=T(g,W,e,f2),A=a+A|0,r=c+_|0,r=A>>>0<a>>>0?r+1|0:r,_=T(I0,v2,P0,h2),A=_+A|0,r=c+r|0,r=A>>>0<_>>>0?r+1|0:r,a=T(Y,G,O0,y2),_=a+A|0,A=c+r|0,A=_>>>0<a>>>0?A+1|0:A,a=T(u,Q0,f0,$0),_=a+_|0,r=c+A|0,r=_>>>0<a>>>0?r+1|0:r,a=T(S,z,q,w0),A=a+_|0,_=c+r|0,_=A>>>0<a>>>0?_+1|0:_,a=T(s,y0,c0,V0),A=a+A|0,r=c+_|0,r=A>>>0<a>>>0?r+1|0:r,_=T(B,s0,v,$),A=_+A|0,r=c+r|0,H2=A,a=A>>>0<_>>>0?r+1|0:r,r=i2(M,19),r=T(r,r>>31,R0,e2),A=c,_=T(D,Q,I,V),r=_+r|0,A=c+A|0,A=r>>>0<_>>>0?A+1|0:A,h=T(g,W,h,j2),_=h+r|0,r=c+A|0,A=T(e,f2,F0,r2),e=A+_|0,_=c+(_>>>0<h>>>0?r+1|0:r)|0,_=e>>>0<A>>>0?_+1|0:_,A=T(Y,G,I0,v2),e=A+e|0,r=c+_|0,r=e>>>0<A>>>0?r+1|0:r,A=T(i0,K0,O0,y2),e=A+e|0,r=c+r|0,r=e>>>0<A>>>0?r+1|0:r,_=T(S,z,u,Q0),e=_+e|0,A=c+r|0,A=e>>>0<_>>>0?A+1|0:A,_=T(q,w0,M0,z0),e=_+e|0,r=c+A|0,r=e>>>0<_>>>0?r+1|0:r,A=T(s,y0,v,$),e=A+e|0,_=c+r|0,_=e>>>0<A>>>0?_+1|0:_,A=T(B,s0,E0,W0),e=A+e|0,r=c+_|0,h=e,r=e>>>0<A>>>0?r+1|0:r,f2=r,e=e+33554432|0,r=e>>>0<33554432?r+1|0:r,j2=e,s1=r,_=r>>26,r=(r&67108863)<<6|e>>>26,e=r+H2|0,A=_+a|0,a=e,r=e>>>0<r>>>0?A+1|0:A,e=e+16777216|0,r=e>>>0<16777216?r+1|0:r,H2=e,A=(r&33554431)<<7|e>>>25,e=A+w|0,r=(r>>25)+E2|0,r=e>>>0<A>>>0?r+1|0:r,_=e,A=_+33554432|0,r=A>>>0<33554432?r+1|0:r,E2=A,e=r,t[i+8>>2]=_-(A&-67108864),r=T(Y,G,M,e0),_=c,w=T(D,Q,P0,h2),A=w+r|0,r=c+_|0,r=A>>>0<w>>>0?r+1|0:r,_=T(K,h0,f0,$0),A=_+A|0,r=c+r|0,r=A>>>0<_>>>0?r+1|0:r,_=T(S,z,o0,B0),A=_+A|0,r=c+r|0,r=A>>>0<_>>>0?r+1|0:r,w=T(u0,L0,c0,V0),A=w+A|0,_=c+r|0,_=A>>>0<w>>>0?_+1|0:_,w=T(v,$,j0,Z0),r=w+A|0,A=c+_|0,A=r>>>0<w>>>0?A+1|0:A,w=T(d0,o2,q2,a2),_=w+r|0,r=c+A|0,r=_>>>0<w>>>0?r+1|0:r,A=_,w=b0>>31,_=T(I,V,b0,w),A=A+_|0,r=c+r|0,r=A>>>0<_>>>0?r+1|0:r,_=T(s,y0,T0,s2),A=_+A|0,r=c+r|0,r=A>>>0<_>>>0?r+1|0:r,N=T(B,s0,g,W),A=N+A|0,_=c+r|0,r=n>>26,X0=(n&67108863)<<6|X0>>>26,n=X0+A|0,A=r+(A>>>0<N>>>0?_+1|0:_)|0,_=n,r=_>>>0<X0>>>0?A+1|0:A,A=_+16777216|0,r=A>>>0<16777216?r+1|0:r,X0=A,n=r,t[i+28>>2]=_-(A&-33554432),r=T(v,$,M,e0),A=c,N=T(D,Q,c0,V0),r=N+r|0,_=c+A|0,_=r>>>0<N>>>0?_+1|0:_,N=T(K,h0,d0,o2),r=N+r|0,A=c+_|0,A=r>>>0<N>>>0?A+1|0:A,N=T(I,V,o0,B0),_=N+r|0,r=c+A|0,r=_>>>0<N>>>0?r+1|0:r,A=_,_=T(I0,v2,T0,s2),A=A+_|0,r=c+r|0,r=A>>>0<_>>>0?r+1|0:r,_=T(g,W,O0,y2),A=_+A|0,r=c+r|0,r=A>>>0<_>>>0?r+1|0:r,u=T(u,Q0,P0,h2),A=u+A|0,_=c+r|0,q=T(Y,G,q,w0),r=q+A|0,A=c+(A>>>0<u>>>0?_+1|0:_)|0,s=T(s,y0,f0,$0),_=s+r|0,r=c+(r>>>0<q>>>0?A+1|0:A)|0,r=_>>>0<s>>>0?r+1|0:r,A=_,_=T(B,s0,S,z),A=A+_|0,r=c+r|0,r=A>>>0<_>>>0?r+1|0:r,s=A,A=e>>26,_=(e&67108863)<<6|E2>>>26,e=s+_|0,r=r+A|0,s=e,r=e>>>0<_>>>0?r+1|0:r,A=e+16777216|0,_=A>>>0<16777216?r+1|0:r,q=A,e=_,t[i+12>>2]=s-(A&-33554432),r=T(M,e0,F0,r2),_=c,s=T(D,Q,g,W),A=s+r|0,r=c+_|0,r=A>>>0<s>>>0?r+1|0:r,_=T(Y,G,K,h0),A=_+A|0,r=c+r|0,r=A>>>0<_>>>0?r+1|0:r,s=T(o0,B0,i0,K0),A=s+A|0,_=c+r|0,_=A>>>0<s>>>0?_+1|0:_,s=T(S,z,u0,L0),r=s+A|0,A=c+_|0,A=r>>>0<s>>>0?A+1|0:A,s=T(M0,z0,j0,Z0),_=s+r|0,r=c+A|0,r=_>>>0<s>>>0?r+1|0:r,A=_,_=T(v,$,q2,a2),A=A+_|0,r=c+r|0,r=A>>>0<_>>>0?r+1|0:r,_=T(b0,w,E0,W0),A=_+A|0,r=c+r|0,r=A>>>0<_>>>0?r+1|0:r,s=B2,u=s>>31,i0=T(I,V,s,u),A=i0+A|0,_=c+r|0,B=T(B,s0,R0,e2),r=B+A|0,A=c+(A>>>0<i0>>>0?_+1|0:_)|0,A=r>>>0<B>>>0?A+1|0:A,B2=r,r=n>>25,_=(n&33554431)<<7|X0>>>25,n=B2+_|0,r=r+A|0,r=n>>>0<_>>>0?r+1|0:r,_=n,A=_+33554432|0,r=A>>>0<33554432?r+1|0:r,B=A,n=r,t[i+32>>2]=_-(A&-67108864),_=x2-(o1&-33554432)|0,A=e>>25,q=(e&33554431)<<7|q>>>25,r=U2&-67108864,e=q+(L2-r|0)|0,r=A+(X2-((r>>>0>L2>>>0)+n1|0)|0)|0,r=e>>>0<q>>>0?r+1|0:r,A=e,e=A+33554432|0,r=e>>>0<33554432?r+1|0:r,r=((r&67108863)<<6|e>>>26)+_|0,t[i+20>>2]=r,t[i+16>>2]=A-(e&-67108864),e=T(g,W,M,e0),r=c,A=T(D,Q,T0,s2),e=A+e|0,r=c+r|0,r=e>>>0<A>>>0?r+1|0:r,_=T(K,h0,P0,h2),e=_+e|0,A=c+r|0,A=e>>>0<_>>>0?A+1|0:A,r=T(Y,G,o0,B0),e=r+e|0,_=c+A|0,_=e>>>0<r>>>0?_+1|0:_,A=T(u0,L0,f0,$0),e=A+e|0,r=c+_|0,r=e>>>0<A>>>0?r+1|0:r,A=T(S,z,j0,Z0),e=A+e|0,r=c+r|0,r=e>>>0<A>>>0?r+1|0:r,A=T(c0,V0,q2,a2),e=A+e|0,r=c+r|0,r=e>>>0<A>>>0?r+1|0:r,_=T(v,$,b0,w),e=_+e|0,A=c+r|0,A=e>>>0<_>>>0?A+1|0:A,r=T(s,u,d0,o2),e=r+e|0,_=c+A|0,_=e>>>0<r>>>0?_+1|0:_,A=T(I,V,I2,I2>>31),e=A+e|0,r=c+_|0,r=e>>>0<A>>>0?r+1|0:r,A=n>>26,_=e,e=(n&67108863)<<6|B>>>26,n=_+e|0,r=r+A|0,r=n>>>0<e>>>0?r+1|0:r,e=n,n=e+16777216|0,r=n>>>0<16777216?r+1|0:r,t[i+36>>2]=e-(n&-33554432),_=a-(H2&-33554432)|0,e=j2&-67108864,A=h-e|0,D=f2-((e>>>0>h>>>0)+s1|0)|0,e=r,r=r>>25,e=T((e&33554431)<<7|n>>>25,r,19,0),n=e+A|0,A=c+D|0,r=n>>>0<e>>>0?A+1|0:A,e=n,n=e+33554432|0,r=n>>>0<33554432?r+1|0:r,r=((r&67108863)<<6|n>>>26)+_|0,t[i+4>>2]=r,t[i>>2]=e-(n&-67108864)}function F5(i,n,e){i=i|0,n=n|0,e=e|0;var r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0,z=0,$=0,V=0,W=0,e0=0,i0=0,o0=0,s0=0,h0=0,u0=0,y0=0,f0=0,B0=0,c0=0,j0=0,d0=0,w0=0,T0=0,P0=0,I0=0,M0=0,L0=0,E0=0,R0=0,F0=0,Q0=0,O0=0,X0=0,K0=0,z0=0,Z0=0,W0=0,b0=0,e2=0,r2=0,$0=0,V0=0,o2=0,s2=0,h2=0,y2=0,f2=0,a2=0,B2=0;for(r=X-368|0,X=r;A=o[e+z|0],u=z+34112|0,S=A^o[u|0]|S,I=A^o[u+192|0]|I,q=A^o[u+160|0]|q,a=A^o[u+128|0]|a,h=A^o[u+96|0]|h,s=A^o[u- -64|0]|s,_=A^o[u+32|0]|_,z=z+1|0,(z|0)!=31;);if(A=-1,v=o[e+31|0]&127,u=v^127,!((((u|I)&255)-1|(((u|q)&255)-1|(((a|u)&255)-1|(((v^87|h)&255)-1|(((s|v)&255)-1|(((_|v)&255)-1|((v|S)&255)-1))))))&256)){for(A=o[n+4|0]|o[n+5|0]<<8|(o[n+6|0]<<16|o[n+7|0]<<24),_=o[n|0]|o[n+1|0]<<8|(o[n+2|0]<<16|o[n+3|0]<<24),t[r+336>>2]=_,t[r+340>>2]=A,A=o[n+28|0]|o[n+29|0]<<8|(o[n+30|0]<<16|o[n+31|0]<<24),t[r+360>>2]=o[n+24|0]|o[n+25|0]<<8|(o[n+26|0]<<16|o[n+27|0]<<24),t[r+364>>2]=A,A=o[n+20|0]|o[n+21|0]<<8|(o[n+22|0]<<16|o[n+23|0]<<24),t[r+352>>2]=o[n+16|0]|o[n+17|0]<<8|(o[n+18|0]<<16|o[n+19|0]<<24),t[r+356>>2]=A,A=o[n+12|0]|o[n+13|0]<<8|(o[n+14|0]<<16|o[n+15|0]<<24),t[r+344>>2]=o[n+8|0]|o[n+9|0]<<8|(o[n+10|0]<<16|o[n+11|0]<<24),t[r+348>>2]=A,f[r+336|0]=_&248,f[r+367|0]=o[r+367|0]&63|64,ar(r+288|0,e),t[r+244>>2]=0,t[r+248>>2]=0,t[r+240>>2]=1,t[r+252>>2]=0,t[r+256>>2]=0,t[r+260>>2]=0,t[r+264>>2]=0,t[r+268>>2]=0,t[r+272>>2]=0,t[r+276>>2]=0,t[r+192>>2]=0,t[r+196>>2]=0,t[r+200>>2]=0,t[r+204>>2]=0,t[r+208>>2]=0,t[r+212>>2]=0,t[r+216>>2]=0,t[r+220>>2]=0,t[r+224>>2]=0,t[r+228>>2]=0,n=t[r+292>>2],t[r+144>>2]=t[r+288>>2],t[r+148>>2]=n,n=t[r+300>>2],t[r+152>>2]=t[r+296>>2],t[r+156>>2]=n,n=t[r+308>>2],t[r+160>>2]=t[r+304>>2],t[r+164>>2]=n,n=t[r+316>>2],t[r+168>>2]=t[r+312>>2],t[r+172>>2]=n,n=t[r+324>>2],t[r+176>>2]=t[r+320>>2],t[r+180>>2]=n,t[r+100>>2]=0,t[r+104>>2]=0,t[r+96>>2]=1,t[r+108>>2]=0,t[r+112>>2]=0,t[r+116>>2]=0,t[r+120>>2]=0,t[r+124>>2]=0,t[r+128>>2]=0,t[r+132>>2]=0,e=254,z=0;j0=t[r+144>>2],d0=t[r+240>>2],w0=t[r+96>>2],T0=t[r+192>>2],P0=t[r+148>>2],I0=t[r+244>>2],M0=t[r+100>>2],L0=t[r+196>>2],E0=t[r+152>>2],R0=t[r+248>>2],F0=t[r+104>>2],Q0=t[r+200>>2],O0=t[r+156>>2],X0=t[r+252>>2],K0=t[r+108>>2],z0=t[r+204>>2],Z0=t[r+160>>2],e0=t[r+256>>2],W0=t[r+112>>2],B=t[r+208>>2],b0=t[r+164>>2],D=t[r+260>>2],e2=t[r+116>>2],Q=t[r+212>>2],r2=t[r+168>>2],G=t[r+264>>2],o0=t[r+120>>2],w=t[r+216>>2],Y=t[r+172>>2],M=t[r+268>>2],g=t[r+124>>2],v=t[r+220>>2],_=t[r+176>>2],u=t[r+272>>2],S=t[r+128>>2],I=t[r+224>>2],n=z,$0=e,V0=r+336|0,z=o[V0+(e>>>3|0)|0]>>>(e&7)&1,N=0-(n^z)|0,A=t[r+180>>2],h=t[r+276>>2],q=N&(A^h),n=t[r+132>>2],s=t[r+228>>2],a=N&(n^s),o2=A^q,s2=n^a,t[r+84>>2]=o2-s2,n=_,_=N&(_^u),h2=n^_,A=N&(S^I),y2=A^S,t[r+80>>2]=h2-y2,e=N&(M^Y),f2=e^Y,n=N&(v^g),K=n^g,t[r+76>>2]=f2-K,$=h^q,i0=s^a,t[r+36>>2]=$-i0,h0=_^u,u0=A^I,t[r+32>>2]=h0-u0,a2=e^M,B2=n^v,t[r+28>>2]=a2-B2,s0=N&(G^r2),y0=s0^G,a=N&(w^o0),f0=a^w,t[r+24>>2]=y0-f0,V=N&(D^b0),B0=V^D,h=N&(Q^e2),c0=h^Q,t[r+20>>2]=B0-c0,W=N&(e0^Z0),e0=W^e0,s=N&(B^W0),B=s^B,t[r+16>>2]=e0-B,D=N&(O0^X0),Q=X0^D,_=N&(K0^z0),G=z0^_,t[r+12>>2]=Q-G,w=N&(E0^R0),Y=R0^w,A=N&(F0^Q0),M=Q0^A,t[r+8>>2]=Y-M,g=N&(P0^I0),v=I0^g,e=N&(M0^L0),u=L0^e,t[r+4>>2]=v-u,S=N&(j0^d0),I=d0^S,n=N&(w0^T0),q=T0^n,t[r>>2]=I-q,o0=a^o0,t[r+120>>2]=o0,a=s0^r2,t[r+72>>2]=a-o0,s0=h^e2,t[r+116>>2]=s0,h=V^b0,t[r+68>>2]=h-s0,V=s^W0,t[r+112>>2]=V,s=W^Z0,t[r+64>>2]=s-V,W=_^K0,t[r+108>>2]=W,_=D^O0,t[r+60>>2]=_-W,D=A^F0,t[r+104>>2]=D,A=w^E0,t[r+56>>2]=A-D,w=e^M0,t[r+100>>2]=w,e=g^P0,t[r+52>>2]=e-w,g=n^w0,t[r+96>>2]=g,n=S^j0,t[r+48>>2]=n-g,t[r+276>>2]=$+i0,t[r+272>>2]=h0+u0,t[r+268>>2]=a2+B2,t[r+264>>2]=y0+f0,t[r+260>>2]=B0+c0,t[r+256>>2]=B+e0,t[r+252>>2]=Q+G,t[r+248>>2]=M+Y,t[r+244>>2]=u+v,t[r+240>>2]=q+I,t[r+228>>2]=o2+s2,t[r+224>>2]=h2+y2,t[r+220>>2]=K+f2,t[r+216>>2]=a+o0,t[r+212>>2]=h+s0,t[r+208>>2]=s+V,t[r+200>>2]=A+D,t[r+196>>2]=e+w,t[r+192>>2]=n+g,t[r+204>>2]=_+W,u0=r+96|0,i0=r+48|0,$=r+240|0,A0(u0,i0,$),K=r+192|0,A0(K,K,r),U(i0,r),U(r,$),B=t[r+192>>2],D=t[r+96>>2],Q=t[r+196>>2],G=t[r+100>>2],w=t[r+200>>2],Y=t[r+104>>2],M=t[r+204>>2],g=t[r+108>>2],v=t[r+208>>2],u=t[r+112>>2],S=t[r+212>>2],I=t[r+116>>2],q=t[r+216>>2],a=t[r+120>>2],h=t[r+220>>2],s=t[r+124>>2],_=t[r+224>>2],A=t[r+128>>2],e=t[r+228>>2],n=t[r+132>>2],t[r+180>>2]=e+n,t[r+176>>2]=A+_,t[r+172>>2]=s+h,t[r+168>>2]=a+q,t[r+164>>2]=S+I,t[r+160>>2]=u+v,t[r+156>>2]=g+M,t[r+152>>2]=w+Y,t[r+148>>2]=Q+G,t[r+144>>2]=B+D,t[r+228>>2]=n-e,t[r+224>>2]=A-_,t[r+220>>2]=s-h,t[r+216>>2]=a-q,t[r+212>>2]=I-S,t[r+208>>2]=u-v,t[r+204>>2]=g-M,t[r+200>>2]=Y-w,t[r+196>>2]=G-Q,t[r+192>>2]=D-B,A0($,r,i0),g=t[r+72>>2],w=t[r+24>>2],y0=t[r+68>>2],Y=t[r+20>>2],v=t[r+64>>2],M=t[r+16>>2],f0=t[r+60>>2],q=t[r+12>>2],u=t[r+56>>2],a=t[r+8>>2],V=t[r+52>>2],h=t[r+4>>2],B0=t[r+84>>2],s=t[r+36>>2],h0=t[r+48>>2],A=t[r>>2],c0=t[r+76>>2],n=t[r+28>>2],_=t[r+80>>2],e=t[r+32>>2]-_|0,t[r+32>>2]=e,n=n-c0|0,t[r+28>>2]=n,D=A-h0|0,t[r>>2]=D,Q=s-B0|0,t[r+36>>2]=Q,S=h-V|0,t[r+4>>2]=S,I=a-u|0,t[r+8>>2]=I,q=q-f0|0,t[r+12>>2]=q,a=M-v|0,t[r+16>>2]=a,h=Y-y0|0,t[r+20>>2]=h,s=w-g|0,t[r+24>>2]=s,U(K,K),A=r+144|0,U(A,A),A=T(e,e>>31,121666,0),M=c,e=T(n,n>>31,121666,0),n=c,W=e,G=e+16777216|0,n=G>>>0<16777216?n+1|0:n,e=(n&33554431)<<7|G>>>25,A=e+A|0,n=(n>>25)+M|0,n=e>>>0>A>>>0?n+1|0:n,w=A+33554432|0,e=w>>>0<33554432?n+1|0:n,t[r+80>>2]=(A-(w&-67108864)|0)+_,_=g,s=T(s,s>>31,121666,0),g=c,A=T(h,h>>31,121666,0),n=c,h=s,e0=A,Y=A+16777216|0,n=Y>>>0<16777216?n+1|0:n,s=(n&33554431)<<7|Y>>>25,A=h+s|0,n=(n>>25)+g|0,n=A>>>0<s>>>0?n+1|0:n,M=A+33554432|0,s=M>>>0<33554432?n+1|0:n,t[r+72>>2]=(A-(M&-67108864)|0)+_,h=v,_=T(a,a>>31,121666,0),a=c,A=T(q,q>>31,121666,0),n=c,v=_,B=A,g=A+16777216|0,n=g>>>0<16777216?n+1|0:n,_=(n&33554431)<<7|g>>>25,A=v+_|0,n=(n>>25)+a|0,n=A>>>0<_>>>0?n+1|0:n,v=A+33554432|0,_=v>>>0<33554432?n+1|0:n,t[r+64>>2]=(A-(v&-67108864)|0)+h,a=u,A=T(I,I>>31,121666,0),q=c,u=T(S,S>>31,121666,0),n=c,h=A,S=u+16777216|0,n=S>>>0<16777216?n+1|0:n,A=(n&33554431)<<7|S>>>25,h=h+A|0,n=(n>>25)+q|0,n=A>>>0>h>>>0?n+1|0:n,I=h+33554432|0,A=I>>>0<33554432?n+1|0:n,t[r+56>>2]=(h-(I&-67108864)|0)+a,q=B0,a=e,e=T(Q,Q>>31,121666,0),a=(a&67108863)<<6|w>>>26,w=e+a|0,h=c,n=h,a=e+16777216|0,e=a>>>0<16777216?n+1|0:n,t[r+84>>2]=(w-(a&-33554432)|0)+q,h=c0,s=W+((s&67108863)<<6|M>>>26)|0,t[r+76>>2]=(s-(G&-33554432)|0)+h,s=y0,_=e0+((_&67108863)<<6|v>>>26)|0,t[r+68>>2]=(_-(Y&-33554432)|0)+s,_=f0,A=B+((A&67108863)<<6|I>>>26)|0,t[r+60>>2]=(A-(g&-33554432)|0)+_,_=V,s=u-(S&-33554432)|0,e=T((e&33554431)<<7|a>>>25,e>>25,19,0),n=c,A=e,e=T(D,D>>31,121666,0),A=A+e|0,n=c+n|0,n=e>>>0>A>>>0?n+1|0:n,e=A+33554432|0,n=e>>>0<33554432?n+1|0:n,s=((n&67108863)<<6|e>>>26)+s|0,t[r+52>>2]=_+s,t[r+48>>2]=(A-(e&-67108864)|0)+h0,e=$0-1|0,A0(u0,r+288|0,K),A0(K,r,i0),!!$0;);S=t[r+144>>2],D=t[r+240>>2],I=t[r+148>>2],Q=t[r+244>>2],q=t[r+152>>2],G=t[r+248>>2],a=t[r+156>>2],w=t[r+252>>2],h=t[r+160>>2],Y=t[r+256>>2],s=t[r+164>>2],M=t[r+260>>2],_=t[r+168>>2],g=t[r+264>>2],A=t[r+172>>2],v=t[r+268>>2],e=t[r+176>>2],u=t[r+272>>2],B=0-z|0,n=t[r+276>>2],t[r+276>>2]=B&(n^t[r+180>>2])^n,t[r+272>>2]=u^B&(e^u),t[r+268>>2]=v^B&(A^v),t[r+264>>2]=g^B&(_^g),t[r+260>>2]=M^B&(s^M),t[r+256>>2]=Y^B&(h^Y),t[r+252>>2]=w^B&(a^w),t[r+248>>2]=G^B&(q^G),t[r+244>>2]=Q^B&(I^Q),t[r+240>>2]=D^B&(S^D),D=t[r+192>>2],S=t[r+96>>2],Q=t[r+196>>2],I=t[r+100>>2],G=t[r+200>>2],q=t[r+104>>2],w=t[r+204>>2],a=t[r+108>>2],Y=t[r+208>>2],h=t[r+112>>2],M=t[r+212>>2],s=t[r+116>>2],g=t[r+216>>2],_=t[r+120>>2],v=t[r+220>>2],A=t[r+124>>2],u=t[r+224>>2],e=t[r+128>>2],n=t[r+228>>2],t[r+228>>2]=B&(n^t[r+132>>2])^n,t[r+224>>2]=u^B&(e^u),t[r+220>>2]=v^B&(A^v),t[r+216>>2]=g^B&(_^g),t[r+212>>2]=M^B&(s^M),t[r+208>>2]=Y^B&(h^Y),t[r+204>>2]=w^B&(a^w),t[r+200>>2]=G^B&(q^G),t[r+196>>2]=Q^B&(I^Q),t[r+192>>2]=D^B&(S^D),pr(K,K),A0($,$,K),V2(i,$),N0(V0,32),A=0}return X=r+368|0,A|0}function Pi(i,n,e){var r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0;for(r=X-4032|0,X=r,J2(r+160|0,e),_=t[e+36>>2],t[r+3840>>2]=t[e+32>>2],t[r+3844>>2]=_,_=t[e+28>>2],t[r+3832>>2]=t[e+24>>2],t[r+3836>>2]=_,_=t[e+20>>2],t[r+3824>>2]=t[e+16>>2],t[r+3828>>2]=_,_=t[e+12>>2],t[r+3816>>2]=t[e+8>>2],t[r+3820>>2]=_,_=t[e+4>>2],t[r+3808>>2]=t[e>>2],t[r+3812>>2]=_,_=t[e+44>>2],t[r+3848>>2]=t[e+40>>2],t[r+3852>>2]=_,_=t[e+52>>2],t[r+3856>>2]=t[e+48>>2],t[r+3860>>2]=_,_=t[e+60>>2],t[r+3864>>2]=t[e+56>>2],t[r+3868>>2]=_,_=e- -64|0,A=t[_+4>>2],t[r+3872>>2]=t[_>>2],t[r+3876>>2]=A,_=t[e+76>>2],t[r+3880>>2]=t[e+72>>2],t[r+3884>>2]=_,_=t[e+84>>2],t[r+3888>>2]=t[e+80>>2],t[r+3892>>2]=_,_=t[e+92>>2],t[r+3896>>2]=t[e+88>>2],t[r+3900>>2]=_,_=t[e+100>>2],t[r+3904>>2]=t[e+96>>2],t[r+3908>>2]=_,_=t[e+108>>2],t[r+3912>>2]=t[e+104>>2],t[r+3916>>2]=_,_=t[e+116>>2],t[r+3920>>2]=t[e+112>>2],t[r+3924>>2]=_,A=r+3528|0,_=r+3808|0,v1(A,_),h=r+2408|0,s=r+3648|0,A0(h,A,s),a=r+3568|0,u=r+3608|0,A0(r+2448|0,a,u),A0(r+2488|0,u,s),A0(r+2528|0,A,a),s=r+320|0,J2(s,h),A=r+3368|0,A1(A,e,s),h=r+2248|0,s=r+3488|0,A0(h,A,s),a=r+3408|0,u=r+3448|0,A0(r+2288|0,a,u),A0(r+2328|0,u,s),A0(r+2368|0,A,a),J2(r+480|0,h),A=t[r+2444>>2],t[r+3840>>2]=t[r+2440>>2],t[r+3844>>2]=A,A=t[r+2436>>2],t[r+3832>>2]=t[r+2432>>2],t[r+3836>>2]=A,A=t[r+2428>>2],t[r+3824>>2]=t[r+2424>>2],t[r+3828>>2]=A,A=t[r+2420>>2],t[r+3816>>2]=t[r+2416>>2],t[r+3820>>2]=A,A=t[r+2412>>2],t[r+3808>>2]=t[r+2408>>2],t[r+3812>>2]=A,A=t[r+2452>>2],t[r+3848>>2]=t[r+2448>>2],t[r+3852>>2]=A,A=t[r+2460>>2],t[r+3856>>2]=t[r+2456>>2],t[r+3860>>2]=A,A=t[r+2468>>2],t[r+3864>>2]=t[r+2464>>2],t[r+3868>>2]=A,A=t[r+2476>>2],t[r+3872>>2]=t[r+2472>>2],t[r+3876>>2]=A,A=t[r+2484>>2],t[r+3880>>2]=t[r+2480>>2],t[r+3884>>2]=A,A=t[r+2524>>2],t[r+3920>>2]=t[r+2520>>2],t[r+3924>>2]=A,A=t[r+2516>>2],t[r+3912>>2]=t[r+2512>>2],t[r+3916>>2]=A,A=t[r+2508>>2],t[r+3904>>2]=t[r+2504>>2],t[r+3908>>2]=A,A=t[r+2500>>2],t[r+3896>>2]=t[r+2496>>2],t[r+3900>>2]=A,A=t[r+2492>>2],t[r+3888>>2]=t[r+2488>>2],t[r+3892>>2]=A,A=r+3208|0,v1(A,_),h=r+2088|0,s=r+3328|0,A0(h,A,s),a=r+3248|0,u=r+3288|0,A0(r+2128|0,a,u),A0(r+2168|0,u,s),A0(r+2208|0,A,a),s=r+640|0,J2(s,h),A=r+3048|0,A1(A,e,s),h=r+1928|0,s=r+3168|0,A0(h,A,s),a=r+3088|0,u=r+3128|0,A0(r+1968|0,a,u),A0(r+2008|0,u,s),A0(r+2048|0,A,a),J2(r+800|0,h),A=t[r+2284>>2],t[r+3840>>2]=t[r+2280>>2],t[r+3844>>2]=A,A=t[r+2276>>2],t[r+3832>>2]=t[r+2272>>2],t[r+3836>>2]=A,A=t[r+2268>>2],t[r+3824>>2]=t[r+2264>>2],t[r+3828>>2]=A,A=t[r+2260>>2],t[r+3816>>2]=t[r+2256>>2],t[r+3820>>2]=A,A=t[r+2252>>2],t[r+3808>>2]=t[r+2248>>2],t[r+3812>>2]=A,A=t[r+2292>>2],t[r+3848>>2]=t[r+2288>>2],t[r+3852>>2]=A,A=t[r+2300>>2],t[r+3856>>2]=t[r+2296>>2],t[r+3860>>2]=A,A=t[r+2308>>2],t[r+3864>>2]=t[r+2304>>2],t[r+3868>>2]=A,A=t[r+2316>>2],t[r+3872>>2]=t[r+2312>>2],t[r+3876>>2]=A,A=t[r+2324>>2],t[r+3880>>2]=t[r+2320>>2],t[r+3884>>2]=A,A=t[r+2364>>2],t[r+3920>>2]=t[r+2360>>2],t[r+3924>>2]=A,A=t[r+2356>>2],t[r+3912>>2]=t[r+2352>>2],t[r+3916>>2]=A,A=t[r+2348>>2],t[r+3904>>2]=t[r+2344>>2],t[r+3908>>2]=A,A=t[r+2340>>2],t[r+3896>>2]=t[r+2336>>2],t[r+3900>>2]=A,A=t[r+2332>>2],t[r+3888>>2]=t[r+2328>>2],t[r+3892>>2]=A,A=r+2888|0,v1(A,_),h=r+1768|0,s=r+3008|0,A0(h,A,s),a=r+2928|0,u=r+2968|0,A0(r+1808|0,a,u),A0(r+1848|0,u,s),A0(r+1888|0,A,a),s=r+960|0,J2(s,h),A=r+2728|0,A1(A,e,s),e=r+1608|0,h=r+2848|0,A0(e,A,h),s=r+2768|0,a=r+2808|0,A0(r+1648|0,s,a),A0(r+1688|0,a,h),A0(r+1728|0,A,s),J2(r+1120|0,e),e=t[r+2124>>2],t[r+3840>>2]=t[r+2120>>2],t[r+3844>>2]=e,e=t[r+2116>>2],t[r+3832>>2]=t[r+2112>>2],t[r+3836>>2]=e,e=t[r+2108>>2],t[r+3824>>2]=t[r+2104>>2],t[r+3828>>2]=e,e=t[r+2100>>2],t[r+3816>>2]=t[r+2096>>2],t[r+3820>>2]=e,e=t[r+2092>>2],t[r+3808>>2]=t[r+2088>>2],t[r+3812>>2]=e,e=t[r+2132>>2],t[r+3848>>2]=t[r+2128>>2],t[r+3852>>2]=e,e=t[r+2140>>2],t[r+3856>>2]=t[r+2136>>2],t[r+3860>>2]=e,e=t[r+2148>>2],t[r+3864>>2]=t[r+2144>>2],t[r+3868>>2]=e,e=t[r+2156>>2],t[r+3872>>2]=t[r+2152>>2],t[r+3876>>2]=e,e=t[r+2164>>2],t[r+3880>>2]=t[r+2160>>2],t[r+3884>>2]=e,e=t[r+2204>>2],t[r+3920>>2]=t[r+2200>>2],t[r+3924>>2]=e,e=t[r+2196>>2],t[r+3912>>2]=t[r+2192>>2],t[r+3916>>2]=e,e=t[r+2188>>2],t[r+3904>>2]=t[r+2184>>2],t[r+3908>>2]=e,e=t[r+2180>>2],t[r+3896>>2]=t[r+2176>>2],t[r+3900>>2]=e,e=t[r+2172>>2],t[r+3888>>2]=t[r+2168>>2],t[r+3892>>2]=e,e=r+2568|0,v1(e,_),_=r+1448|0,A=r+2688|0,A0(_,e,A),h=r+2608|0,s=r+2648|0,A0(r+1488|0,h,s),A0(r+1528|0,s,A),A0(r+1568|0,e,h),J2(r+1280|0,_),e=o[n|0],f[r+3969|0]=e>>>4,f[r+3968|0]=e&15,e=o[n+1|0],f[r+3971|0]=e>>>4,f[r+3970|0]=e&15,e=o[n+2|0],f[r+3973|0]=e>>>4,f[r+3972|0]=e&15,e=o[n+3|0],f[r+3975|0]=e>>>4,f[r+3974|0]=e&15,e=o[n+4|0],f[r+3977|0]=e>>>4,f[r+3976|0]=e&15,e=o[n+5|0],f[r+3979|0]=e>>>4,f[r+3978|0]=e&15,e=o[n+6|0],f[r+3981|0]=e>>>4,f[r+3980|0]=e&15,e=o[n+7|0],f[r+3983|0]=e>>>4,f[r+3982|0]=e&15,e=o[n+8|0],f[r+3985|0]=e>>>4,f[r+3984|0]=e&15,e=o[n+9|0],f[r+3987|0]=e>>>4,f[r+3986|0]=e&15,e=o[n+10|0],f[r+3989|0]=e>>>4,f[r+3988|0]=e&15,e=o[n+11|0],f[r+3991|0]=e>>>4,f[r+3990|0]=e&15,e=o[n+12|0],f[r+3993|0]=e>>>4,f[r+3992|0]=e&15,e=o[n+13|0],f[r+3995|0]=e>>>4,f[r+3994|0]=e&15,e=o[n+14|0],f[r+3997|0]=e>>>4,f[r+3996|0]=e&15,e=o[n+15|0],f[r+3999|0]=e>>>4,f[r+3998|0]=e&15,e=o[n+16|0],f[r+4001|0]=e>>>4,f[r+4e3|0]=e&15,e=o[n+17|0],f[r+4003|0]=e>>>4,f[r+4002|0]=e&15,e=o[n+18|0],f[r+4005|0]=e>>>4,f[r+4004|0]=e&15,e=o[n+19|0],f[r+4007|0]=e>>>4,f[r+4006|0]=e&15,e=o[n+20|0],f[r+4009|0]=e>>>4,f[r+4008|0]=e&15,e=o[n+21|0],f[r+4011|0]=e>>>4,f[r+4010|0]=e&15,e=o[n+22|0],f[r+4013|0]=e>>>4,f[r+4012|0]=e&15,e=o[n+23|0],f[r+4015|0]=e>>>4,f[r+4014|0]=e&15,e=o[n+24|0],f[r+4017|0]=e>>>4,f[r+4016|0]=e&15,e=o[n+25|0],f[r+4019|0]=e>>>4,f[r+4018|0]=e&15,e=o[n+26|0],f[r+4021|0]=e>>>4,f[r+4020|0]=e&15,e=o[n+27|0],f[r+4023|0]=e>>>4,f[r+4022|0]=e&15,e=o[n+28|0],f[r+4025|0]=e>>>4,f[r+4024|0]=e&15,e=o[n+29|0],f[r+4027|0]=e>>>4,f[r+4026|0]=e&15,e=o[n+30|0],f[r+4029|0]=e>>>4,f[r+4028|0]=e&15,n=o[n+31|0],f[r+4031|0]=n>>>4,f[r+4030|0]=n&15,n=0,e=0;A=n,n=(r+3968|0)+e|0,A=A+o[n|0]|0,_=A+8|0,f[n|0]=A-(_&240),A=o[n+1|0]+(_<<24>>24>>4)|0,_=A+8|0,f[n+1|0]=A-(_&240),A=o[n+2|0]+(_<<24>>24>>4)|0,_=A+8|0,f[n+2|0]=A-(_&240),n=_<<24>>24>>4,e=e+3|0,(e|0)!=63;);for(f[r+4031|0]=o[r+4031|0]+n,t[i+32>>2]=0,t[i+36>>2]=0,t[i+24>>2]=0,t[i+28>>2]=0,t[i+16>>2]=0,t[i+20>>2]=0,t[i+8>>2]=0,t[i+12>>2]=0,t[i>>2]=0,t[i+4>>2]=0,t[i+44>>2]=0,t[i+48>>2]=0,B=i+40|0,t[B>>2]=1,t[i+52>>2]=0,t[i+56>>2]=0,t[i+60>>2]=0,t[i+64>>2]=0,t[i+68>>2]=0,t[i+72>>2]=0,t[i+76>>2]=0,t[i+80>>2]=1,k2(i+84|0,0,76),v=i+120|0,g=i+80|0,s=r+3768|0,e=r+3888|0,A=r+3848|0,a=r+3728|0,_=r+3928|0,u=63;w=r+160|0,$i(r,w,f[(r+3968|0)+u|0]),n=r+3808|0,A1(n,i,r),h=r+3688|0,A0(h,n,_),A0(a,A,e),A0(s,e,_),v1(n,h),A0(h,n,_),A0(a,A,e),A0(s,e,_),v1(n,h),A0(h,n,_),A0(a,A,e),A0(s,e,_),v1(n,h),A0(h,n,_),A0(a,A,e),A0(s,e,_),v1(n,h),A0(i,n,_),A0(B,A,e),A0(g,e,_),A0(v,n,A),u=u-1|0,!!u;);$i(r,w,f[r+3968|0]),A1(n,i,r),A0(i,n,_),A0(B,A,e),A0(g,e,_),A0(v,n,A),X=r+4032|0}function cn(i,n,e,r){var A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0,z=0,$=0,V=0,W=0,e0=0;for(A=o[n|0]|o[n+1|0]<<8|(o[n+2|0]<<16|o[n+3|0]<<24),W=e,e0=w2(A&16711935,8)|w2(A,24)&16711935,t[W>>2]=e0,A=o[n+4|0]|o[n+5|0]<<8|(o[n+6|0]<<16|o[n+7|0]<<24),W=e,e0=w2(A&16711935,8)|w2(A,24)&16711935,t[W+4>>2]=e0,A=o[n+8|0]|o[n+9|0]<<8|(o[n+10|0]<<16|o[n+11|0]<<24),W=e,e0=w2(A&16711935,8)|w2(A,24)&16711935,t[W+8>>2]=e0,A=o[n+12|0]|o[n+13|0]<<8|(o[n+14|0]<<16|o[n+15|0]<<24),W=e,e0=w2(A&16711935,8)|w2(A,24)&16711935,t[W+12>>2]=e0,A=o[n+16|0]|o[n+17|0]<<8|(o[n+18|0]<<16|o[n+19|0]<<24),W=e,e0=w2(A&16711935,8)|w2(A,24)&16711935,t[W+16>>2]=e0,A=o[n+20|0]|o[n+21|0]<<8|(o[n+22|0]<<16|o[n+23|0]<<24),W=e,e0=w2(A&16711935,8)|w2(A,24)&16711935,t[W+20>>2]=e0,A=o[n+24|0]|o[n+25|0]<<8|(o[n+26|0]<<16|o[n+27|0]<<24),W=e,e0=w2(A&16711935,8)|w2(A,24)&16711935,t[W+24>>2]=e0,A=o[n+28|0]|o[n+29|0]<<8|(o[n+30|0]<<16|o[n+31|0]<<24),W=e,e0=w2(A&16711935,8)|w2(A,24)&16711935,t[W+28>>2]=e0,A=o[n+32|0]|o[n+33|0]<<8|(o[n+34|0]<<16|o[n+35|0]<<24),W=e,e0=w2(A&16711935,8)|w2(A,24)&16711935,t[W+32>>2]=e0,A=o[n+36|0]|o[n+37|0]<<8|(o[n+38|0]<<16|o[n+39|0]<<24),W=e,e0=w2(A&16711935,8)|w2(A,24)&16711935,t[W+36>>2]=e0,A=o[n+40|0]|o[n+41|0]<<8|(o[n+42|0]<<16|o[n+43|0]<<24),W=e,e0=w2(A&16711935,8)|w2(A,24)&16711935,t[W+40>>2]=e0,A=o[n+44|0]|o[n+45|0]<<8|(o[n+46|0]<<16|o[n+47|0]<<24),W=e,e0=w2(A&16711935,8)|w2(A,24)&16711935,t[W+44>>2]=e0,A=o[n+48|0]|o[n+49|0]<<8|(o[n+50|0]<<16|o[n+51|0]<<24),W=e,e0=w2(A&16711935,8)|w2(A,24)&16711935,t[W+48>>2]=e0,A=o[n+52|0]|o[n+53|0]<<8|(o[n+54|0]<<16|o[n+55|0]<<24),W=e,e0=w2(A&16711935,8)|w2(A,24)&16711935,t[W+52>>2]=e0,A=o[n+56|0]|o[n+57|0]<<8|(o[n+58|0]<<16|o[n+59|0]<<24),W=e,e0=w2(A&16711935,8)|w2(A,24)&16711935,t[W+56>>2]=e0,n=o[n+60|0]|o[n+61|0]<<8|(o[n+62|0]<<16|o[n+63|0]<<24),W=e,e0=w2(n&16711935,8)|w2(n,24)&16711935,t[W+60>>2]=e0,n=t[i+28>>2],t[r+24>>2]=t[i+24>>2],t[r+28>>2]=n,n=t[i+20>>2],t[r+16>>2]=t[i+16>>2],t[r+20>>2]=n,n=t[i+12>>2],t[r+8>>2]=t[i+8>>2],t[r+12>>2]=n,n=t[i+4>>2],t[r>>2]=t[i>>2],t[r+4>>2]=n;;){if(h=t[r+28>>2],A=M<<2,n=A+e|0,a=t[r+16>>2],s=t[n>>2]+(t0(a,26)^t0(a,21)^t0(a,7))|0,_=t[A+39360>>2]+s|0,s=t[r+24>>2],w=t[r+20>>2],h=(_+(a&(s^w)^s)|0)+h|0,B=h+t[r+12>>2]|0,t[r+12>>2]=B,_=t[r>>2],v=h+(t0(_,30)^t0(_,19)^t0(_,10))|0,g=t[r+8>>2],u=t[r+4>>2],h=v+(_&(g|u)|u&g)|0,t[r+28>>2]=h,v=g,g=A|4,I=g+e|0,s=(t[I>>2]+((s+(w^B&(a^w))|0)+(t0(B,26)^t0(B,21)^t0(B,7))|0)|0)+t[g+39360>>2]|0,g=v+s|0,t[r+8>>2]=g,s=(s+(h&(_|u)|_&u)|0)+(t0(h,30)^t0(h,19)^t0(h,10))|0,t[r+24>>2]=s,v=u,u=A|8,u=(((w+t[u+e>>2]|0)+t[u+39360>>2]|0)+(a^g&(a^B))|0)+(t0(g,26)^t0(g,21)^t0(g,7))|0,w=v+u|0,t[r+4>>2]=w,u=u+((s&(_|h)|_&h)+(t0(s,30)^t0(s,19)^t0(s,10))|0)|0,t[r+20>>2]=u,v=_,_=A|12,_=(((a+t[_+e>>2]|0)+t[_+39360>>2]|0)+(B^w&(g^B))|0)+(t0(w,26)^t0(w,21)^t0(w,7))|0,a=v+_|0,t[r>>2]=a,_=_+((u&(s|h)|s&h)+(t0(u,30)^t0(u,19)^t0(u,10))|0)|0,t[r+16>>2]=_,v=B,B=A|16,v=(((v+t[B+e>>2]|0)+t[B+39360>>2]|0)+(g^a&(g^w))|0)+(t0(a,26)^t0(a,21)^t0(a,7))|0,B=v+((_&(s|u)|s&u)+(t0(_,30)^t0(_,19)^t0(_,10))|0)|0,t[r+12>>2]=B,v=h+v|0,t[r+28>>2]=v,h=A|20,g=(((g+t[h+e>>2]|0)+t[h+39360>>2]|0)+(w^v&(a^w))|0)+(t0(v,26)^t0(v,21)^t0(v,7))|0,h=g+((B&(_|u)|_&u)+(t0(B,30)^t0(B,19)^t0(B,10))|0)|0,t[r+8>>2]=h,g=s+g|0,t[r+24>>2]=g,s=A|24,w=(((w+t[s+e>>2]|0)+t[s+39360>>2]|0)+(a^g&(a^v))|0)+(t0(g,26)^t0(g,21)^t0(g,7))|0,s=w+((h&(_|B)|_&B)+(t0(h,30)^t0(h,19)^t0(h,10))|0)|0,t[r+4>>2]=s,w=u+w|0,t[r+20>>2]=w,u=A|28,a=(((a+t[u+e>>2]|0)+t[u+39360>>2]|0)+(v^w&(g^v))|0)+(t0(w,26)^t0(w,21)^t0(w,7))|0,u=a+((s&(h|B)|h&B)+(t0(s,30)^t0(s,19)^t0(s,10))|0)|0,t[r>>2]=u,a=_+a|0,t[r+16>>2]=a,_=A|32,v=(((v+t[_+e>>2]|0)+t[_+39360>>2]|0)+(g^a&(g^w))|0)+(t0(a,26)^t0(a,21)^t0(a,7))|0,_=v+((u&(s|h)|s&h)+(t0(u,30)^t0(u,19)^t0(u,10))|0)|0,t[r+28>>2]=_,v=B+v|0,t[r+12>>2]=v,B=A|36,D=B+e|0,g=(((g+t[D>>2]|0)+t[B+39360>>2]|0)+(w^v&(a^w))|0)+(t0(v,26)^t0(v,21)^t0(v,7))|0,B=g+((_&(s|u)|s&u)+(t0(_,30)^t0(_,19)^t0(_,10))|0)|0,t[r+24>>2]=B,g=h+g|0,t[r+8>>2]=g,h=A|40,Q=h+e|0,w=(((w+t[Q>>2]|0)+t[h+39360>>2]|0)+(a^g&(a^v))|0)+(t0(g,26)^t0(g,21)^t0(g,7))|0,h=w+((B&(_|u)|_&u)+(t0(B,30)^t0(B,19)^t0(B,10))|0)|0,t[r+20>>2]=h,w=s+w|0,t[r+4>>2]=w,s=A|44,G=s+e|0,a=((a+(t[s+39360>>2]+t[G>>2]|0)|0)+(v^w&(g^v))|0)+(t0(w,26)^t0(w,21)^t0(w,7))|0,s=a+((h&(_|B)|_&B)+(t0(h,30)^t0(h,19)^t0(h,10))|0)|0,t[r+16>>2]=s,u=a+u|0,t[r>>2]=u,a=A|48,K=a+e|0,v=((v+(t[a+39360>>2]+t[K>>2]|0)|0)+(g^u&(g^w))|0)+(t0(u,26)^t0(u,21)^t0(u,7))|0,a=v+((s&(h|B)|h&B)+(t0(s,30)^t0(s,19)^t0(s,10))|0)|0,t[r+12>>2]=a,_=_+v|0,t[r+28>>2]=_,v=A|52,z=v+e|0,v=(((t[v+39360>>2]+t[z>>2]|0)+g|0)+(w^_&(u^w))|0)+(t0(_,26)^t0(_,21)^t0(_,7))|0,g=v+((a&(s|h)|s&h)+(t0(a,30)^t0(a,19)^t0(a,10))|0)|0,t[r+8>>2]=g,B=B+v|0,t[r+24>>2]=B,q=A|56,v=q+e|0,q=(((t[q+39360>>2]+t[v>>2]|0)+w|0)+(u^B&(_^u))|0)+(t0(B,26)^t0(B,21)^t0(B,7))|0,w=q+((g&(s|a)|s&a)+(t0(g,30)^t0(g,19)^t0(g,10))|0)|0,t[r+4>>2]=w,h=h+q|0,t[r+20>>2]=h,A=A|60,$=A+e|0,A=((u+(t[A+39360>>2]+t[$>>2]|0)|0)+(_^h&(_^B))|0)+(t0(h,26)^t0(h,21)^t0(h,7))|0,h=A+((w&(a|g)|a&g)+(t0(w,30)^t0(w,19)^t0(w,10))|0)|0,t[r>>2]=h,t[r+16>>2]=A+s,(M|0)!=48){M=M+16|0,V=t[D>>2],D=t[v>>2],_=t[n>>2]+(V+(t0(D,15)^t0(D,13)^D>>>10)|0)|0,h=t[I>>2],A=_+(t0(h,25)^t0(h,14)^h>>>3)|0,t[(M<<2)+e>>2]=A,s=t[n+8>>2],u=t[n+44>>2],_=s+(u+(t0(A,15)^t0(A,13)^A>>>10)|0)|0,a=t[n+12>>2],_=_+(t0(a,25)^t0(a,14)^a>>>3)|0,t[n+72>>2]=_,I=t[n+40>>2],B=I+h|0,h=t[n+60>>2],s=(B+(t0(h,15)^t0(h,13)^h>>>10)|0)+(t0(s,25)^t0(s,14)^s>>>3)|0,t[n+68>>2]=s,B=t[n+16>>2],g=t[n+52>>2],v=B+(g+(t0(_,15)^t0(_,13)^_>>>10)|0)|0,q=t[n+20>>2],w=v+(t0(q,25)^t0(q,14)^q>>>3)|0,t[n+80>>2]=w,Y=t[n+48>>2],B=(a+(Y+(t0(s,15)^t0(s,13)^s>>>10)|0)|0)+(t0(B,25)^t0(B,14)^B>>>3)|0,t[n+76>>2]=B,a=t[n+24>>2],v=a+(h+(t0(w,15)^t0(w,13)^w>>>10)|0)|0,S=t[n+28>>2],v=v+(t0(S,25)^t0(S,14)^S>>>3)|0,t[n+88>>2]=v,N=t[n+56>>2],a=(q+(N+(t0(B,15)^t0(B,13)^B>>>10)|0)|0)+(t0(a,25)^t0(a,14)^a>>>3)|0,t[n+84>>2]=a,q=(A+S|0)+(t0(a,15)^t0(a,13)^a>>>10)|0,S=t[n+32>>2],q=q+(t0(S,25)^t0(S,14)^S>>>3)|0,t[n+92>>2]=q,S=(s+S|0)+(t0(v,15)^t0(v,13)^v>>>10)|0,s=t[n+36>>2],s=S+(t0(s,25)^t0(s,14)^s>>>3)|0,t[n+96>>2]=s,_=(_+((t0(I,25)^t0(I,14)^I>>>3)+V|0)|0)+(t0(q,15)^t0(q,13)^q>>>10)|0,t[n+100>>2]=_,u=(t[Q>>2]+(B+(t0(u,25)^t0(u,14)^u>>>3)|0)|0)+(t0(s,15)^t0(s,13)^s>>>10)|0,t[n+104>>2]=u,_=(t[G>>2]+(w+(t0(Y,25)^t0(Y,14)^Y>>>3)|0)|0)+(t0(_,15)^t0(_,13)^_>>>10)|0,t[n+108>>2]=_,u=(t[K>>2]+(a+(t0(g,25)^t0(g,14)^g>>>3)|0)|0)+(t0(u,15)^t0(u,13)^u>>>10)|0,t[n+112>>2]=u,_=(t[z>>2]+(v+(t0(N,25)^t0(N,14)^N>>>3)|0)|0)+(t0(_,15)^t0(_,13)^_>>>10)|0,t[n+116>>2]=_,W=n,e0=(q+(D+(t0(h,25)^t0(h,14)^h>>>3)|0)|0)+(t0(u,15)^t0(u,13)^u>>>10)|0,t[W+120>>2]=e0,W=n,e0=(t[$>>2]+(s+(t0(A,25)^t0(A,14)^A>>>3)|0)|0)+(t0(_,15)^t0(_,13)^_>>>10)|0,t[W+124>>2]=e0;continue}break}t[i>>2]=h+t[i>>2],t[i+4>>2]=t[i+4>>2]+t[r+4>>2],t[i+8>>2]=t[i+8>>2]+t[r+8>>2],t[i+12>>2]=t[i+12>>2]+t[r+12>>2],t[i+16>>2]=t[i+16>>2]+t[r+16>>2],t[i+20>>2]=t[i+20>>2]+t[r+20>>2],t[i+24>>2]=t[i+24>>2]+t[r+24>>2],t[i+28>>2]=t[i+28>>2]+t[r+28>>2]}function Ii(i,n){var e=0,r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0;e=X-544|0,X=e,s=o[i+60|0]|o[i+61|0]<<8|(o[i+62|0]<<16|o[i+63|0]<<24),h=o[i+56|0]|o[i+57|0]<<8|(o[i+58|0]<<16|o[i+59|0]<<24),a=o[i+52|0]|o[i+53|0]<<8|(o[i+54|0]<<16|o[i+55|0]<<24),u=o[i+48|0]|o[i+49|0]<<8|(o[i+50|0]<<16|o[i+51|0]<<24),B=o[i+32|0]|o[i+33|0]<<8|(o[i+34|0]<<16|o[i+35|0]<<24),v=o[i+36|0]|o[i+37|0]<<8|(o[i+38|0]<<16|o[i+39|0]<<24),g=o[i+40|0]|o[i+41|0]<<8|(o[i+42|0]<<16|o[i+43|0]<<24),w=o[i+44|0]|o[i+45|0]<<8|(o[i+46|0]<<16|o[i+47|0]<<24),r=o[i+28|0]|o[i+29|0]<<8|(o[i+30|0]<<16|o[i+31|0]<<24),q=o[i+24|0]|o[i+25|0]<<8|(o[i+26|0]<<16|o[i+27|0]<<24),S=o[i+20|0]|o[i+21|0]<<8|(o[i+22|0]<<16|o[i+23|0]<<24),I=o[i+16|0]|o[i+17|0]<<8|(o[i+18|0]<<16|o[i+19|0]<<24),D=o[i+4|0]|o[i+5|0]<<8|(o[i+6|0]<<16|o[i+7|0]<<24),M=o[i+8|0]|o[i+9|0]<<8|(o[i+10|0]<<16|o[i+11|0]<<24),Y=o[i+12|0]|o[i+13|0]<<8|(o[i+14|0]<<16|o[i+15|0]<<24),N=o[i|0]|o[i+1|0]<<8|(o[i+2|0]<<16|o[i+3|0]<<24),i=t[n+124>>2],t[e+536>>2]=t[n+120>>2],t[e+540>>2]=i,i=t[n+116>>2],t[e+528>>2]=t[n+112>>2],t[e+532>>2]=i,i=t[n+100>>2],t[e+496>>2]=t[n+96>>2],t[e+500>>2]=i,i=t[n+108>>2],t[e+504>>2]=t[n+104>>2],t[e+508>>2]=i,i=t[n+116>>2],t[e+480>>2]=t[n+112>>2],t[e+484>>2]=i,i=t[n+124>>2],t[e+488>>2]=t[n+120>>2],t[e+492>>2]=i,i=e+512|0,H0(i,e+496|0,e+480|0),_=t[e+524>>2],t[n+120>>2]=t[e+520>>2],t[n+124>>2]=_,_=t[e+516>>2],t[n+112>>2]=t[e+512>>2],t[n+116>>2]=_,_=t[n+84>>2],t[e+464>>2]=t[n+80>>2],t[e+468>>2]=_,_=t[n+92>>2],t[e+472>>2]=t[n+88>>2],t[e+476>>2]=_,_=t[n+100>>2],t[e+448>>2]=t[n+96>>2],t[e+452>>2]=_,_=t[n+108>>2],t[e+456>>2]=t[n+104>>2],t[e+460>>2]=_,H0(i,e+464|0,e+448|0),_=t[e+524>>2],t[n+104>>2]=t[e+520>>2],t[n+108>>2]=_,_=t[e+516>>2],t[n+96>>2]=t[e+512>>2],t[n+100>>2]=_,_=n- -64|0,A=t[_+4>>2],t[e+432>>2]=t[_>>2],t[e+436>>2]=A,A=t[n+76>>2],t[e+440>>2]=t[n+72>>2],t[e+444>>2]=A,A=t[n+84>>2],t[e+416>>2]=t[n+80>>2],t[e+420>>2]=A,A=t[n+92>>2],t[e+424>>2]=t[n+88>>2],t[e+428>>2]=A,H0(i,e+432|0,e+416|0),A=t[e+524>>2],t[n+88>>2]=t[e+520>>2],t[n+92>>2]=A,A=t[e+516>>2],t[n+80>>2]=t[e+512>>2],t[n+84>>2]=A,A=t[n+52>>2],t[e+400>>2]=t[n+48>>2],t[e+404>>2]=A,A=t[n+60>>2],t[e+408>>2]=t[n+56>>2],t[e+412>>2]=A,A=t[_+4>>2],t[e+384>>2]=t[_>>2],t[e+388>>2]=A,A=t[n+76>>2],t[e+392>>2]=t[n+72>>2],t[e+396>>2]=A,H0(i,e+400|0,e+384|0),A=t[e+524>>2],t[n+72>>2]=t[e+520>>2],t[n+76>>2]=A,A=t[e+516>>2],t[_>>2]=t[e+512>>2],t[_+4>>2]=A,A=t[n+36>>2],t[e+368>>2]=t[n+32>>2],t[e+372>>2]=A,A=t[n+44>>2],t[e+376>>2]=t[n+40>>2],t[e+380>>2]=A,A=t[n+52>>2],t[e+352>>2]=t[n+48>>2],t[e+356>>2]=A,A=t[n+60>>2],t[e+360>>2]=t[n+56>>2],t[e+364>>2]=A,H0(i,e+368|0,e+352|0),A=t[e+524>>2],t[n+56>>2]=t[e+520>>2],t[n+60>>2]=A,A=t[e+516>>2],t[n+48>>2]=t[e+512>>2],t[n+52>>2]=A,A=t[n+20>>2],t[e+336>>2]=t[n+16>>2],t[e+340>>2]=A,A=t[n+28>>2],t[e+344>>2]=t[n+24>>2],t[e+348>>2]=A,A=t[n+36>>2],t[e+320>>2]=t[n+32>>2],t[e+324>>2]=A,A=t[n+44>>2],t[e+328>>2]=t[n+40>>2],t[e+332>>2]=A,H0(i,e+336|0,e+320|0),A=t[e+524>>2],t[n+40>>2]=t[e+520>>2],t[n+44>>2]=A,A=t[e+516>>2],t[n+32>>2]=t[e+512>>2],t[n+36>>2]=A,A=t[n+4>>2],t[e+304>>2]=t[n>>2],t[e+308>>2]=A,A=t[n+12>>2],t[e+312>>2]=t[n+8>>2],t[e+316>>2]=A,A=t[n+20>>2],t[e+288>>2]=t[n+16>>2],t[e+292>>2]=A,A=t[n+28>>2],t[e+296>>2]=t[n+24>>2],t[e+300>>2]=A,H0(i,e+304|0,e+288|0),A=t[e+524>>2],t[n+24>>2]=t[e+520>>2],t[n+28>>2]=A,A=t[e+516>>2],t[n+16>>2]=t[e+512>>2],t[n+20>>2]=A,A=t[e+532>>2],t[e+272>>2]=t[e+528>>2],t[e+276>>2]=A,A=t[e+540>>2],t[e+280>>2]=t[e+536>>2],t[e+284>>2]=A,A=t[n+4>>2],t[e+256>>2]=t[n>>2],t[e+260>>2]=A,A=t[n+12>>2],t[e+264>>2]=t[n+8>>2],t[e+268>>2]=A,H0(i,e+272|0,e+256|0),A=t[e+524>>2],t[n+8>>2]=t[e+520>>2],t[n+12>>2]=A,A=t[e+516>>2],t[n>>2]=t[e+512>>2],t[n+4>>2]=A,t[n+12>>2]=t[n+12>>2]^Y,t[n+8>>2]=t[n+8>>2]^M,t[n+4>>2]=t[n+4>>2]^D,t[n>>2]=t[n>>2]^N,t[_>>2]=t[_>>2]^I,t[n+68>>2]=t[n+68>>2]^S,t[n+72>>2]=t[n+72>>2]^q,t[n+76>>2]=t[n+76>>2]^r,r=t[n+124>>2],t[e+536>>2]=t[n+120>>2],t[e+540>>2]=r,r=t[n+116>>2],t[e+528>>2]=t[n+112>>2],t[e+532>>2]=r,r=t[n+100>>2],t[e+240>>2]=t[n+96>>2],t[e+244>>2]=r,r=t[n+108>>2],t[e+248>>2]=t[n+104>>2],t[e+252>>2]=r,r=t[n+116>>2],t[e+224>>2]=t[n+112>>2],t[e+228>>2]=r,r=t[n+124>>2],t[e+232>>2]=t[n+120>>2],t[e+236>>2]=r,H0(i,e+240|0,e+224|0),r=t[e+524>>2],t[n+120>>2]=t[e+520>>2],t[n+124>>2]=r,r=t[e+516>>2],t[n+112>>2]=t[e+512>>2],t[n+116>>2]=r,r=t[n+84>>2],t[e+208>>2]=t[n+80>>2],t[e+212>>2]=r,r=t[n+92>>2],t[e+216>>2]=t[n+88>>2],t[e+220>>2]=r,r=t[n+100>>2],t[e+192>>2]=t[n+96>>2],t[e+196>>2]=r,r=t[n+108>>2],t[e+200>>2]=t[n+104>>2],t[e+204>>2]=r,H0(i,e+208|0,e+192|0),r=t[e+524>>2],t[n+104>>2]=t[e+520>>2],t[n+108>>2]=r,r=t[e+516>>2],t[n+96>>2]=t[e+512>>2],t[n+100>>2]=r,r=t[_+4>>2],t[e+176>>2]=t[_>>2],t[e+180>>2]=r,r=t[n+76>>2],t[e+184>>2]=t[n+72>>2],t[e+188>>2]=r,r=t[n+84>>2],t[e+160>>2]=t[n+80>>2],t[e+164>>2]=r,r=t[n+92>>2],t[e+168>>2]=t[n+88>>2],t[e+172>>2]=r,H0(i,e+176|0,e+160|0),r=t[e+524>>2],t[n+88>>2]=t[e+520>>2],t[n+92>>2]=r,r=t[e+516>>2],t[n+80>>2]=t[e+512>>2],t[n+84>>2]=r,r=t[n+52>>2],t[e+144>>2]=t[n+48>>2],t[e+148>>2]=r,r=t[n+60>>2],t[e+152>>2]=t[n+56>>2],t[e+156>>2]=r,r=t[_+4>>2],t[e+128>>2]=t[_>>2],t[e+132>>2]=r,r=t[n+76>>2],t[e+136>>2]=t[n+72>>2],t[e+140>>2]=r,H0(i,e+144|0,e+128|0),r=t[e+524>>2],t[n+72>>2]=t[e+520>>2],t[n+76>>2]=r,r=t[e+516>>2],t[_>>2]=t[e+512>>2],t[_+4>>2]=r,r=t[n+36>>2],t[e+112>>2]=t[n+32>>2],t[e+116>>2]=r,r=t[n+44>>2],t[e+120>>2]=t[n+40>>2],t[e+124>>2]=r,r=t[n+52>>2],t[e+96>>2]=t[n+48>>2],t[e+100>>2]=r,r=t[n+60>>2],t[e+104>>2]=t[n+56>>2],t[e+108>>2]=r,H0(i,e+112|0,e+96|0),r=t[e+524>>2],t[n+56>>2]=t[e+520>>2],t[n+60>>2]=r,r=t[e+516>>2],t[n+48>>2]=t[e+512>>2],t[n+52>>2]=r,r=t[n+20>>2],t[e+80>>2]=t[n+16>>2],t[e+84>>2]=r,r=t[n+28>>2],t[e+88>>2]=t[n+24>>2],t[e+92>>2]=r,r=t[n+36>>2],t[e+64>>2]=t[n+32>>2],t[e+68>>2]=r,r=t[n+44>>2],t[e+72>>2]=t[n+40>>2],t[e+76>>2]=r,H0(i,e+80|0,e- -64|0),r=t[e+524>>2],t[n+40>>2]=t[e+520>>2],t[n+44>>2]=r,r=t[e+516>>2],t[n+32>>2]=t[e+512>>2],t[n+36>>2]=r,r=t[n+4>>2],t[e+48>>2]=t[n>>2],t[e+52>>2]=r,r=t[n+12>>2],t[e+56>>2]=t[n+8>>2],t[e+60>>2]=r,r=t[n+20>>2],t[e+32>>2]=t[n+16>>2],t[e+36>>2]=r,r=t[n+28>>2],t[e+40>>2]=t[n+24>>2],t[e+44>>2]=r,H0(i,e+48|0,e+32|0),r=t[e+524>>2],t[n+24>>2]=t[e+520>>2],t[n+28>>2]=r,r=t[e+516>>2],t[n+16>>2]=t[e+512>>2],t[n+20>>2]=r,r=t[e+532>>2],t[e+16>>2]=t[e+528>>2],t[e+20>>2]=r,r=t[e+540>>2],t[e+24>>2]=t[e+536>>2],t[e+28>>2]=r,r=t[n+4>>2],t[e>>2]=t[n>>2],t[e+4>>2]=r,r=t[n+12>>2],t[e+8>>2]=t[n+8>>2],t[e+12>>2]=r,H0(i,e+16|0,e),i=t[e+524>>2],t[n+8>>2]=t[e+520>>2],t[n+12>>2]=i,i=t[e+516>>2],t[n>>2]=t[e+512>>2],t[n+4>>2]=i,t[n+12>>2]=t[n+12>>2]^w,t[n+8>>2]=t[n+8>>2]^g,t[n+4>>2]=t[n+4>>2]^v,t[n>>2]=t[n>>2]^B,t[_>>2]=t[_>>2]^u,t[n+68>>2]=t[n+68>>2]^a,t[n+72>>2]=t[n+72>>2]^h,t[n+76>>2]=t[n+76>>2]^s,X=e+544|0}function xi(i,n){var e=0,r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0,z=0,$=0,V=0,W=0,e0=0,i0=0,o0=0,s0=0,h0=0,u0=0,y0=0,f0=0,B0=0,c0=0,j0=0,d0=0,w0=0,T0=0,P0=0,I0=0,M0=0,L0=0,E0=0,R0=0,F0=0,Q0=0,O0=0,X0=0,K0=0,z0=0,Z0=0,W0=0,b0=0,e2=0,r2=0;y0=t[n+12>>2],N=y0<<1,z=N>>31,_=t[n+4>>2],q=_<<1,Q=q>>31,e=T(N,z,q,Q),A=c,v=t[n+8>>2],T0=v,f0=v>>31,g=T(v,f0,v,f0),r=g+e|0,e=c+A|0,e=r>>>0<g>>>0?e+1|0:e,h=t[n+16>>2],$=h>>31,s=t[n>>2],g=s<<1,G=g>>31,A=T(h,$,g,G),r=A+r|0,e=c+e|0,e=r>>>0<A>>>0?e+1|0:e,o0=t[n+28>>2],V=i2(o0,38),B0=V>>31,P0=o0>>31,A=T(V,B0,o0,P0),r=A+r|0,e=c+e|0,e=r>>>0<A>>>0?e+1|0:e,A=r,s0=t[n+32>>2],u=i2(s0,19),W=u>>31,S=t[n+24>>2],r=S<<1,a=T(u,W,r,r>>31),A=A+a|0,r=c+e|0,r=A>>>0<a>>>0?r+1|0:r,O0=t[n+36>>2],a=i2(O0,38),K=a>>31,e0=t[n+20>>2],I=e0<<1,h0=I>>31,e=T(a,K,I,h0),A=e+A|0,n=c+r|0,e=(e>>>0>A>>>0?n+1|0:n)<<1|A>>>31,K0=e,I0=A<<1,r=I0+33554432|0,e=r>>>0<33554432?e+1|0:e,z0=r,Z0=e,n=e>>26,w=(e&67108863)<<6|r>>>26,e=T(q,Q,h,$),A=c,v=v<<1,u0=v>>31,M0=y0>>31,D=T(v,u0,y0,M0),r=D+e|0,e=c+A|0,e=r>>>0<D>>>0?e+1|0:e,j0=e0>>31,D=T(e0,j0,g,G),A=D+r|0,r=c+e|0,r=A>>>0<D>>>0?r+1|0:r,D=o0<<1,L0=D>>31,d0=T(u,W,D,L0),A=d0+A|0,e=c+r|0,e=A>>>0<d0>>>0?e+1|0:e,i0=S>>31,r=T(a,K,S,i0),A=r+A|0,e=c+e|0,r=(r>>>0>A>>>0?e+1|0:e)<<1|A>>>31,e=A<<1,A=e+w|0,n=n+r|0,d0=A,n=e>>>0>A>>>0?n+1|0:n,e=n,A=A+16777216|0,e=A>>>0<16777216?e+1|0:e,W0=A,w=(e&33554431)<<7|A>>>25,A=e>>25,n=T(N,z,y0,M0),e=c,r=T(h,$,v,u0),n=r+n|0,e=c+e|0,e=n>>>0<r>>>0?e+1|0:e,r=T(q,Q,I,h0),n=r+n|0,e=c+e|0,e=n>>>0<r>>>0?e+1|0:e,M=T(g,G,S,i0),r=M+n|0,n=c+e|0,n=r>>>0<M>>>0?n+1|0:n,w0=s0>>31,M=T(u,W,s0,w0),r=M+r|0,e=c+n|0,e=r>>>0<M>>>0?e+1|0:e,M=T(a,K,D,L0),n=M+r|0,r=c+e|0,e=n,n=(e>>>0<M>>>0?r+1|0:r)<<1|e>>>31,r=w,w=e<<1,r=r+w|0,e=n+A|0,e=r>>>0<w>>>0?e+1|0:e,n=r+33554432|0,e=n>>>0<33554432?e+1|0:e,M=n,A=e,t[i+24>>2]=r-(n&-67108864),n=i2(e0,38),r=T(n,n>>31,e0,j0),w=c,n=s,e=n>>31,e=T(n,e,n,e),n=e+r|0,r=c+w|0,r=n>>>0<e>>>0?r+1|0:r,s=i2(S,19),E0=s>>31,w=h<<1,R0=w>>31,Y=T(s,E0,w,R0),n=Y+n|0,e=c+r|0,e=n>>>0<Y>>>0?e+1|0:e,r=T(N,z,V,B0),n=r+n|0,e=c+e|0,e=n>>>0<r>>>0?e+1|0:e,Y=T(u,W,v,u0),r=Y+n|0,n=c+e|0,n=r>>>0<Y>>>0?n+1|0:n,Y=T(q,Q,a,K),r=Y+r|0,e=c+n|0,F0=r<<1,e=(r>>>0<Y>>>0?e+1|0:e)<<1|r>>>31,Y=e,n=F0+33554432|0,r=n>>>0<33554432?e+1|0:e,b0=n,e2=r,c0=(r&67108863)<<6|n>>>26,Q0=r>>26,n=T(s,E0,I,h0),e=c,X0=_>>31,r=T(g,G,_,X0),n=r+n|0,e=c+e|0,e=n>>>0<r>>>0?e+1|0:e,B=T(h,$,V,B0),r=B+n|0,n=c+e|0,n=r>>>0<B>>>0?n+1|0:n,B=T(u,W,N,z),r=B+r|0,e=c+n|0,e=r>>>0<B>>>0?e+1|0:e,n=T(a,K,T0,f0),B=n+r|0,r=c+e|0,n=(n>>>0>B>>>0?r+1|0:r)<<1|B>>>31,B=B<<1,r=B+c0|0,e=n+Q0|0,e=r>>>0<B>>>0?e+1|0:e,Q0=r,r=r+16777216|0,e=r>>>0<16777216?e+1|0:e,B=r,r2=(e&33554431)<<7|r>>>25,c0=e>>25,n=T(g,G,T0,f0),e=c,r=T(q,Q,_,X0),n=r+n|0,e=c+e|0,e=n>>>0<r>>>0?e+1|0:e,_=T(s,E0,S,i0),n=_+n|0,r=c+e|0,r=n>>>0<_>>>0?r+1|0:r,_=T(I,h0,V,B0),n=_+n|0,e=c+r|0,e=n>>>0<_>>>0?e+1|0:e,r=T(u,W,w,R0),n=r+n|0,e=c+e|0,e=n>>>0<r>>>0?e+1|0:e,_=T(a,K,N,z),r=_+n|0,n=c+e|0,e=(r>>>0<_>>>0?n+1|0:n)<<1|r>>>31,r=r<<1,n=r+r2|0,e=e+c0|0,s=n,e=n>>>0<r>>>0?e+1|0:e,n=n+33554432|0,r=n>>>0<33554432?e+1|0:e,c0=n,_=r,t[i+8>>2]=s-(n&-67108864),n=T(v,u0,e0,j0),r=c,s=T(h,$,N,z),e=s+n|0,n=c+r|0,n=e>>>0<s>>>0?n+1|0:n,s=T(q,Q,S,i0),r=s+e|0,e=c+n|0,e=r>>>0<s>>>0?e+1|0:e,s=T(g,G,o0,P0),n=s+r|0,r=c+e|0,r=n>>>0<s>>>0?r+1|0:r,s=T(a,K,s0,w0),n=s+n|0,e=c+r|0,e=(n>>>0<s>>>0?e+1|0:e)<<1|n>>>31,r=A>>26,s=n<<1,n=(A&67108863)<<6|M>>>26,A=s+n|0,e=e+r|0,r=A,n=r>>>0<n>>>0?e+1|0:e,e=r+16777216|0,n=e>>>0<16777216?n+1|0:n,s=e,A=n,t[i+28>>2]=r-(e&-33554432),n=T(g,G,y0,M0),e=c,r=T(q,Q,T0,f0),n=r+n|0,e=c+e|0,e=n>>>0<r>>>0?e+1|0:e,r=T(S,i0,V,B0),n=r+n|0,e=c+e|0,e=n>>>0<r>>>0?e+1|0:e,u=T(u,W,I,h0),r=u+n|0,n=c+e|0,n=r>>>0<u>>>0?n+1|0:n,u=T(a,K,h,$),e=u+r|0,r=c+n|0,n=e,e=(e>>>0<u>>>0?r+1|0:r)<<1|e>>>31,r=n<<1,n=_>>26,_=(_&67108863)<<6|c0>>>26,r=r+_|0,e=n+e|0,e=r>>>0<_>>>0?e+1|0:e,n=r+16777216|0,e=n>>>0<16777216?e+1|0:e,u=n,_=e,t[i+12>>2]=r-(n&-33554432),n=T(S,i0,v,u0),e=c,r=T(h,$,h,$),n=r+n|0,e=c+e|0,e=n>>>0<r>>>0?e+1|0:e,r=T(N,z,I,h0),n=r+n|0,e=c+e|0,e=n>>>0<r>>>0?e+1|0:e,r=T(q,Q,D,L0),n=r+n|0,e=c+e|0,e=n>>>0<r>>>0?e+1|0:e,h=T(g,G,s0,w0),r=h+n|0,n=c+e|0,n=r>>>0<h>>>0?n+1|0:n,e=a,a=O0,I=a>>31,h=T(e,K,a,I),e=h+r|0,r=c+n|0,n=e,e=(e>>>0<h>>>0?r+1|0:r)<<1|e>>>31,r=n<<1,n=A>>25,A=(A&33554431)<<7|s>>>25,r=r+A|0,e=n+e|0,e=r>>>0<A>>>0?e+1|0:e,n=r+33554432|0,e=n>>>0<33554432?e+1|0:e,h=n,A=e,t[i+32>>2]=r-(n&-67108864),V=d0-(W0&-33554432)|0,e=_>>25,_=(_&33554431)<<7|u>>>25,n=z0&-67108864,r=_+(I0-n|0)|0,n=e+(K0-((n>>>0>I0>>>0)+Z0|0)|0)|0,n=r>>>0<_>>>0?n+1|0:n,_=r,e=n,r=r+33554432|0,e=r>>>0<33554432?e+1|0:e,n=((e&67108863)<<6|r>>>26)+V|0,t[i+20>>2]=n,t[i+16>>2]=_-(r&-67108864),n=T(N,z,S,i0),r=c,_=T(e0,j0,w,R0),e=_+n|0,n=c+r|0,n=e>>>0<_>>>0?n+1|0:n,_=T(v,u0,o0,P0),r=_+e|0,e=c+n|0,e=r>>>0<_>>>0?e+1|0:e,_=T(q,Q,s0,w0),n=_+r|0,r=c+e|0,r=n>>>0<_>>>0?r+1|0:r,_=T(g,G,a,I),n=_+n|0,e=c+r|0,e=(n>>>0<_>>>0?e+1|0:e)<<1|n>>>31,r=A>>26,_=n<<1,n=(A&67108863)<<6|h>>>26,A=_+n|0,e=e+r|0,n=n>>>0>A>>>0?e+1|0:e,e=A+16777216|0,n=e>>>0<16777216?n+1|0:n,t[i+36>>2]=A-(e&-33554432),_=Q0-(B&-33554432)|0,r=b0&-67108864,A=F0-r|0,q=Y-((r>>>0>F0>>>0)+e2|0)|0,n=T((n&33554431)<<7|e>>>25,n>>25,19,0),e=n+A|0,r=c+q|0,A=e,n=n>>>0>e>>>0?r+1|0:r,e=e+33554432|0,n=e>>>0<33554432?n+1|0:n,n=((n&67108863)<<6|e>>>26)+_|0,t[i+4>>2]=n,t[i>>2]=A-(e&-67108864)}function Q5(i,n,e,r,A,_,s,h,a){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0,_=_|0,s=s|0,h=h|0,a=a|0;var u=0,B=0,v=0,g=0,w=0,q=0,S=0;if(u=X-528|0,X=u,Ti(a,h,u+400|0),a=0,s>>>0>31)for(h=32;Ci(_+a|0,u+400|0),a=h,h=h+32|0,h>>>0<=s>>>0;);if(h=a|16,h>>>0<=s>>>0)for(;a=_+a|0,v=o[a|0]|o[a+1|0]<<8|(o[a+2|0]<<16|o[a+3|0]<<24),g=o[a+4|0]|o[a+5|0]<<8|(o[a+6|0]<<16|o[a+7|0]<<24),w=o[a+8|0]|o[a+9|0]<<8|(o[a+10|0]<<16|o[a+11|0]<<24),q=o[a+12|0]|o[a+13|0]<<8|(o[a+14|0]<<16|o[a+15|0]<<24),a=t[u+492>>2],t[u+520>>2]=t[u+488>>2],t[u+524>>2]=a,a=t[u+484>>2],t[u+512>>2]=t[u+480>>2],t[u+516>>2]=a,a=t[u+468>>2],t[u+368>>2]=t[u+464>>2],t[u+372>>2]=a,a=t[u+476>>2],t[u+376>>2]=t[u+472>>2],t[u+380>>2]=a,a=t[u+484>>2],t[u+352>>2]=t[u+480>>2],t[u+356>>2]=a,a=t[u+492>>2],t[u+360>>2]=t[u+488>>2],t[u+364>>2]=a,a=u+496|0,H0(a,u+368|0,u+352|0),B=t[u+508>>2],t[u+488>>2]=t[u+504>>2],t[u+492>>2]=B,B=t[u+500>>2],t[u+480>>2]=t[u+496>>2],t[u+484>>2]=B,B=t[u+452>>2],t[u+336>>2]=t[u+448>>2],t[u+340>>2]=B,B=t[u+460>>2],t[u+344>>2]=t[u+456>>2],t[u+348>>2]=B,B=t[u+468>>2],t[u+320>>2]=t[u+464>>2],t[u+324>>2]=B,B=t[u+476>>2],t[u+328>>2]=t[u+472>>2],t[u+332>>2]=B,H0(a,u+336|0,u+320|0),B=t[u+508>>2],t[u+472>>2]=t[u+504>>2],t[u+476>>2]=B,B=t[u+500>>2],t[u+464>>2]=t[u+496>>2],t[u+468>>2]=B,B=t[u+436>>2],t[u+304>>2]=t[u+432>>2],t[u+308>>2]=B,B=t[u+444>>2],t[u+312>>2]=t[u+440>>2],t[u+316>>2]=B,B=t[u+452>>2],t[u+288>>2]=t[u+448>>2],t[u+292>>2]=B,B=t[u+460>>2],t[u+296>>2]=t[u+456>>2],t[u+300>>2]=B,H0(a,u+304|0,u+288|0),B=t[u+508>>2],t[u+456>>2]=t[u+504>>2],t[u+460>>2]=B,B=t[u+500>>2],t[u+448>>2]=t[u+496>>2],t[u+452>>2]=B,B=t[u+420>>2],t[u+272>>2]=t[u+416>>2],t[u+276>>2]=B,B=t[u+428>>2],t[u+280>>2]=t[u+424>>2],t[u+284>>2]=B,B=t[u+436>>2],t[u+256>>2]=t[u+432>>2],t[u+260>>2]=B,B=t[u+444>>2],t[u+264>>2]=t[u+440>>2],t[u+268>>2]=B,H0(a,u+272|0,u+256|0),B=t[u+508>>2],t[u+440>>2]=t[u+504>>2],t[u+444>>2]=B,B=t[u+500>>2],t[u+432>>2]=t[u+496>>2],t[u+436>>2]=B,B=t[u+404>>2],t[u+240>>2]=t[u+400>>2],t[u+244>>2]=B,B=t[u+412>>2],t[u+248>>2]=t[u+408>>2],t[u+252>>2]=B,B=t[u+420>>2],t[u+224>>2]=t[u+416>>2],t[u+228>>2]=B,B=t[u+428>>2],t[u+232>>2]=t[u+424>>2],t[u+236>>2]=B,H0(a,u+240|0,u+224|0),B=t[u+508>>2],t[u+424>>2]=t[u+504>>2],t[u+428>>2]=B,B=t[u+500>>2],t[u+416>>2]=t[u+496>>2],t[u+420>>2]=B,B=t[u+516>>2],t[u+208>>2]=t[u+512>>2],t[u+212>>2]=B,B=t[u+524>>2],t[u+216>>2]=t[u+520>>2],t[u+220>>2]=B,B=t[u+404>>2],t[u+192>>2]=t[u+400>>2],t[u+196>>2]=B,B=t[u+412>>2],t[u+200>>2]=t[u+408>>2],t[u+204>>2]=B,H0(a,u+208|0,u+192|0),t[u+412>>2]=q^t[u+508>>2],t[u+408>>2]=t[u+504>>2]^w,t[u+404>>2]=t[u+500>>2]^g,t[u+400>>2]=v^t[u+496>>2],a=h,h=h+16|0,h>>>0<=s>>>0;);if(h=s&15,h&&(v=16-h|0,v&&k2(h|u+384,0,v),h&&_2(u+384|0,_+a|0,h),g=t[u+384>>2],w=t[u+388>>2],q=t[u+392>>2],B=t[u+396>>2],a=t[u+492>>2],_=t[u+488>>2],t[u+520>>2]=_,t[u+524>>2]=a,v=t[u+484>>2],h=t[u+480>>2],t[u+512>>2]=h,t[u+516>>2]=v,S=t[u+468>>2],t[u+176>>2]=t[u+464>>2],t[u+180>>2]=S,S=t[u+476>>2],t[u+184>>2]=t[u+472>>2],t[u+188>>2]=S,t[u+160>>2]=h,t[u+164>>2]=v,t[u+168>>2]=_,t[u+172>>2]=a,_=u+496|0,H0(_,u+176|0,u+160|0),h=t[u+508>>2],t[u+488>>2]=t[u+504>>2],t[u+492>>2]=h,h=t[u+500>>2],t[u+480>>2]=t[u+496>>2],t[u+484>>2]=h,h=t[u+452>>2],t[u+144>>2]=t[u+448>>2],t[u+148>>2]=h,h=t[u+460>>2],t[u+152>>2]=t[u+456>>2],t[u+156>>2]=h,h=t[u+468>>2],t[u+128>>2]=t[u+464>>2],t[u+132>>2]=h,h=t[u+476>>2],t[u+136>>2]=t[u+472>>2],t[u+140>>2]=h,H0(_,u+144|0,u+128|0),h=t[u+508>>2],t[u+472>>2]=t[u+504>>2],t[u+476>>2]=h,h=t[u+500>>2],t[u+464>>2]=t[u+496>>2],t[u+468>>2]=h,h=t[u+436>>2],t[u+112>>2]=t[u+432>>2],t[u+116>>2]=h,h=t[u+444>>2],t[u+120>>2]=t[u+440>>2],t[u+124>>2]=h,h=t[u+452>>2],t[u+96>>2]=t[u+448>>2],t[u+100>>2]=h,h=t[u+460>>2],t[u+104>>2]=t[u+456>>2],t[u+108>>2]=h,H0(_,u+112|0,u+96|0),h=t[u+508>>2],t[u+456>>2]=t[u+504>>2],t[u+460>>2]=h,h=t[u+500>>2],t[u+448>>2]=t[u+496>>2],t[u+452>>2]=h,h=t[u+420>>2],t[u+80>>2]=t[u+416>>2],t[u+84>>2]=h,h=t[u+428>>2],t[u+88>>2]=t[u+424>>2],t[u+92>>2]=h,h=t[u+436>>2],t[u+64>>2]=t[u+432>>2],t[u+68>>2]=h,h=t[u+444>>2],t[u+72>>2]=t[u+440>>2],t[u+76>>2]=h,H0(_,u+80|0,u- -64|0),h=t[u+508>>2],t[u+440>>2]=t[u+504>>2],t[u+444>>2]=h,h=t[u+500>>2],t[u+432>>2]=t[u+496>>2],t[u+436>>2]=h,h=t[u+404>>2],t[u+48>>2]=t[u+400>>2],t[u+52>>2]=h,h=t[u+412>>2],t[u+56>>2]=t[u+408>>2],t[u+60>>2]=h,h=t[u+420>>2],t[u+32>>2]=t[u+416>>2],t[u+36>>2]=h,h=t[u+428>>2],t[u+40>>2]=t[u+424>>2],t[u+44>>2]=h,H0(_,u+48|0,u+32|0),h=t[u+508>>2],t[u+424>>2]=t[u+504>>2],t[u+428>>2]=h,h=t[u+500>>2],t[u+416>>2]=t[u+496>>2],t[u+420>>2]=h,h=t[u+516>>2],t[u+16>>2]=t[u+512>>2],t[u+20>>2]=h,h=t[u+524>>2],t[u+24>>2]=t[u+520>>2],t[u+28>>2]=h,h=t[u+404>>2],t[u>>2]=t[u+400>>2],t[u+4>>2]=h,h=t[u+412>>2],t[u+8>>2]=t[u+408>>2],t[u+12>>2]=h,H0(_,u+16|0,u),t[u+412>>2]=B^t[u+508>>2],t[u+408>>2]=q^t[u+504>>2],t[u+404>>2]=w^t[u+500>>2],t[u+400>>2]=g^t[u+496>>2]),a=16,h=0,A>>>0>=16)for(;Fi(i+h|0,r+h|0,u+400|0),h=a,a=h+16|0,a>>>0<=A>>>0;);_=A&15;e:{if(!_||(a=16-_|0,a&&k2(_|u+384,0,a),a=!_,a||_2(u+384|0,r+h|0,_),r=u+512|0,Fi(r,u+384|0,u+400|0),a))break e;_2(i+h|0,r,_)}return Ri(n,e,s,A,u+400|0),X=u+528|0,0}function U(i,n){var e=0,r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0,z=0,$=0,V=0,W=0,e0=0,i0=0,o0=0,s0=0,h0=0,u0=0,y0=0,f0=0,B0=0,c0=0,j0=0,d0=0,w0=0,T0=0,P0=0,I0=0,M0=0,L0=0,E0=0,R0=0,F0=0,Q0=0,O0=0,X0=0,K0=0,z0=0,Z0=0,W0=0;B0=t[n+12>>2],I=B0<<1,N=I>>31,P0=B0>>31,e=T(I,N,B0,P0),A=c,s=t[n+16>>2],Q=s>>31,_=t[n+8>>2],K=_<<1,e0=K>>31,B=T(s,Q,K,e0),r=B+e|0,e=c+A|0,e=r>>>0<B>>>0?e+1|0:e,z=t[n+20>>2],q=z<<1,i0=q>>31,h=t[n+4>>2],B=h<<1,D=B>>31,v=T(q,i0,B,D),A=v+r|0,r=c+e|0,r=A>>>0<v>>>0?r+1|0:r,S=t[n+24>>2],$=S>>31,o0=t[n>>2],v=o0<<1,M=v>>31,a=T(S,$,v,M),A=a+A|0,e=c+r|0,e=A>>>0<a>>>0?e+1|0:e,r=A,s0=t[n+32>>2],g=i2(s0,19),V=g>>31,d0=s0>>31,A=T(g,V,s0,d0),r=r+A|0,e=c+e|0,e=r>>>0<A>>>0?e+1|0:e,Q0=t[n+36>>2],a=i2(Q0,38),Y=a>>31,h0=t[n+28>>2],w0=h0<<1,I0=w0>>31,A=T(a,Y,w0,I0),r=A+r|0,n=c+e|0,W=r,A=r>>>0<A>>>0?n+1|0:n,n=T(B,D,s,Q),e=c,r=T(K,e0,B0,P0),n=r+n|0,e=c+e|0,e=n>>>0<r>>>0?e+1|0:e,T0=z>>31,u=T(z,T0,v,M),n=u+n|0,r=c+e|0,r=n>>>0<u>>>0?r+1|0:r,u=T(g,V,w0,I0),n=u+n|0,e=c+r|0,e=n>>>0<u>>>0?e+1|0:e,r=T(a,Y,S,$),n=r+n|0,e=c+e|0,M0=n,w=n>>>0<r>>>0?e+1|0:e,e=T(B,D,I,N),r=c,n=_,G=n>>31,L0=n,_=T(n,G,n,G),e=_+e|0,n=c+r|0,n=e>>>0<_>>>0?n+1|0:n,_=T(v,M,s,Q),r=_+e|0,e=c+n|0,e=r>>>0<_>>>0?e+1|0:e,u=i2(h0,38),c0=u>>31,E0=h0>>31,_=T(u,c0,h0,E0),n=_+r|0,r=c+e|0,r=n>>>0<_>>>0?r+1|0:r,e=n,n=S<<1,_=T(g,V,n,n>>31),n=e+_|0,e=c+r|0,e=n>>>0<_>>>0?e+1|0:e,r=n,n=T(a,Y,q,i0),r=r+n|0,e=c+e|0,O0=r,e=n>>>0>r>>>0?e+1|0:e,X0=e,n=e,r=r+33554432|0,n=r>>>0<33554432?n+1|0:n,K0=r,z0=n,e=n>>26,r=(n&67108863)<<6|r>>>26,n=r+M0|0,e=e+w|0,M0=n,e=n>>>0<r>>>0?e+1|0:e,n=n+16777216|0,r=n>>>0<16777216?e+1|0:e,Z0=n,e=r>>25,n=(r&33554431)<<7|n>>>25,r=n+W|0,e=e+A|0,n=n>>>0>r>>>0?e+1|0:e,e=r+33554432|0,n=e>>>0<33554432?n+1|0:n,W=e,_=n,t[i+24>>2]=r-(e&-67108864),n=T(v,M,L0,G),e=c,u0=h>>31,A=T(B,D,h,u0),n=A+n|0,r=c+e|0,r=n>>>0<A>>>0?r+1|0:r,A=i2(S,19),j0=A>>31,w=T(A,j0,S,$),n=w+n|0,e=c+r|0,e=n>>>0<w>>>0?e+1|0:e,w=T(q,i0,u,c0),r=w+n|0,n=c+e|0,n=r>>>0<w>>>0?n+1|0:n,w=s<<1,R0=w>>31,y0=T(g,V,w,R0),r=y0+r|0,e=c+n|0,e=r>>>0<y0>>>0?e+1|0:e,n=r,r=T(a,Y,I,N),n=n+r|0,e=c+e|0,f0=n,y0=n>>>0<r>>>0?e+1|0:e,n=T(q,i0,A,j0),e=c,h=T(v,M,h,u0),n=h+n|0,r=c+e|0,r=n>>>0<h>>>0?r+1|0:r,h=T(s,Q,u,c0),n=h+n|0,e=c+r|0,e=n>>>0<h>>>0?e+1|0:e,h=T(g,V,I,N),r=h+n|0,n=c+e|0,n=r>>>0<h>>>0?n+1|0:n,h=T(a,Y,L0,G),r=h+r|0,e=c+n|0,F0=r,u0=r>>>0<h>>>0?e+1|0:e,n=i2(z,38),r=T(n,n>>31,z,T0),h=c,n=o0,e=n>>31,o0=r,r=T(n,e,n,e),n=o0+r|0,e=c+h|0,e=n>>>0<r>>>0?e+1|0:e,A=T(A,j0,w,R0),n=A+n|0,r=c+e|0,r=n>>>0<A>>>0?r+1|0:r,A=T(I,N,u,c0),n=A+n|0,e=c+r|0,e=n>>>0<A>>>0?e+1|0:e,A=T(g,V,K,e0),r=A+n|0,n=c+e|0,n=r>>>0<A>>>0?n+1|0:n,A=T(B,D,a,Y),r=A+r|0,e=c+n|0,h=r,e=r>>>0<A>>>0?e+1|0:e,o0=e,r=r+33554432|0,e=r>>>0<33554432?e+1|0:e,j0=r,W0=e,n=e>>26,e=(e&67108863)<<6|r>>>26,A=e+F0|0,r=n+u0|0,u0=A,e=e>>>0>A>>>0?r+1|0:r,r=A+16777216|0,e=r>>>0<16777216?e+1|0:e,F0=r,A=(e&33554431)<<7|r>>>25,r=A+f0|0,e=(e>>25)+y0|0,e=r>>>0<A>>>0?e+1|0:e,n=r+33554432|0,e=n>>>0<33554432?e+1|0:e,y0=n,A=e,t[i+8>>2]=r-(n&-67108864),n=T(K,e0,z,T0),e=c,r=T(s,Q,I,N),n=r+n|0,e=c+e|0,e=n>>>0<r>>>0?e+1|0:e,r=T(B,D,S,$),n=r+n|0,e=c+e|0,e=n>>>0<r>>>0?e+1|0:e,r=T(v,M,h0,E0),n=r+n|0,e=c+e|0,e=n>>>0<r>>>0?e+1|0:e,r=T(a,Y,s0,d0),f0=r+n|0,n=c+e|0,r=r>>>0>f0>>>0?n+1|0:n,e=_>>26,_=(_&67108863)<<6|W>>>26,n=_+f0|0,r=e+r|0,W=n,e=n>>>0<_>>>0?r+1|0:r,n=n+16777216|0,e=n>>>0<16777216?e+1|0:e,f0=n,_=e,t[i+28>>2]=W-(n&-33554432),n=T(v,M,B0,P0),r=c,G=T(B,D,L0,G),e=G+n|0,n=c+r|0,n=e>>>0<G>>>0?n+1|0:n,u=T(S,$,u,c0),e=u+e|0,r=c+n|0,g=T(g,V,q,i0),n=g+e|0,e=c+(e>>>0<u>>>0?r+1|0:r)|0,e=n>>>0<g>>>0?e+1|0:e,r=T(a,Y,s,Q),n=r+n|0,e=c+e|0,e=n>>>0<r>>>0?e+1|0:e,r=A>>26,W=n,n=(A&67108863)<<6|y0>>>26,A=W+n|0,e=e+r|0,r=A,n=r>>>0<n>>>0?e+1|0:e,e=r+16777216|0,n=e>>>0<16777216?n+1|0:n,g=e,A=n,t[i+12>>2]=r-(e&-33554432),n=T(S,$,K,e0),e=c,r=T(s,Q,s,Q),n=r+n|0,e=c+e|0,e=n>>>0<r>>>0?e+1|0:e,r=T(I,N,q,i0),n=r+n|0,e=c+e|0,e=n>>>0<r>>>0?e+1|0:e,s=T(B,D,w0,I0),r=s+n|0,n=c+e|0,n=r>>>0<s>>>0?n+1|0:n,s=T(v,M,s0,d0),e=s+r|0,r=c+n|0,r=e>>>0<s>>>0?r+1|0:r,n=a,a=Q0,q=a>>31,s=T(n,Y,a,q),n=s+e|0,e=c+r|0,e=n>>>0<s>>>0?e+1|0:e,r=n,n=_>>25,_=(_&33554431)<<7|f0>>>25,r=r+_|0,e=n+e|0,e=r>>>0<_>>>0?e+1|0:e,n=r+33554432|0,e=n>>>0<33554432?e+1|0:e,s=n,_=e,t[i+32>>2]=r-(n&-67108864),u=M0-(Z0&-33554432)|0,e=A>>25,A=(A&33554431)<<7|g>>>25,n=K0&-67108864,r=A+(O0-n|0)|0,n=e+(X0-((n>>>0>O0>>>0)+z0|0)|0)|0,n=r>>>0<A>>>0?n+1|0:n,A=r,r=r+33554432|0,e=r>>>0<33554432?n+1|0:n,n=((e&67108863)<<6|r>>>26)+u|0,t[i+20>>2]=n,t[i+16>>2]=A-(r&-67108864),n=T(I,N,S,$),r=c,A=T(z,T0,w,R0),e=A+n|0,n=c+r|0,n=e>>>0<A>>>0?n+1|0:n,A=T(K,e0,h0,E0),r=A+e|0,e=c+n|0,e=r>>>0<A>>>0?e+1|0:e,A=T(B,D,s0,d0),n=A+r|0,r=c+e|0,r=n>>>0<A>>>0?r+1|0:r,e=n,n=T(v,M,a,q),A=e+n|0,e=c+r|0,n=n>>>0>A>>>0?e+1|0:e,e=_>>26,_=(_&67108863)<<6|s>>>26,r=_+A|0,e=n+e|0,n=r>>>0<_>>>0?e+1|0:e,e=r+16777216|0,n=e>>>0<16777216?n+1|0:n,t[i+36>>2]=r-(e&-33554432),_=u0-(F0&-33554432)|0,r=j0&-67108864,A=h-r|0,B=o0-((r>>>0>h>>>0)+W0|0)|0,n=T((n&33554431)<<7|e>>>25,n>>25,19,0),r=n+A|0,e=c+B|0,n=n>>>0>r>>>0?e+1|0:e,e=r+33554432|0,n=e>>>0<33554432?n+1|0:n,n=((n&67108863)<<6|e>>>26)+_|0,t[i+4>>2]=n,t[i>>2]=r-(e&-67108864)}function O5(i,n,e,r,A){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0;var _=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0;if(_=o[A|0]|o[A+1|0]<<8|(o[A+2|0]<<16|o[A+3|0]<<24),M=_^1886610805,s=o[A+4|0]|o[A+5|0]<<8|(o[A+6|0]<<16|o[A+7|0]<<24),I=s^1936682341,_=_^1852142177,h=s^1819895653,q=e,Q=e&7,s=o[A+8|0]|o[A+9|0]<<8|(o[A+10|0]<<16|o[A+11|0]<<24),Y=s^1852075907,e=o[A+12|0]|o[A+13|0]<<8|(o[A+14|0]<<16|o[A+15|0]<<24),D=e^1685025377,a=s^2037671283,s=e^1952801890,e=q&-8,e){for(w=n+e|0;N=o[n+4|0]|o[n+5|0]<<8|(o[n+6|0]<<16|o[n+7|0]<<24),S=s^N,e=S+h|0,B=o[n|0]|o[n+1|0]<<8|(o[n+2|0]<<16|o[n+3|0]<<24),r=a^B,A=_+r|0,a=A,e=A>>>0<r>>>0?e+1|0:e,v=e,e=I+D|0,h=M+Y|0,e=h>>>0<M>>>0?e+1|0:e,_=x(Y,D,13)^h,u=a+_|0,s=e,A=e^c,e=v+A|0,e=_>>>0>u>>>0?e+1|0:e,_=x(_,A,17)^u,g=e,A=e^c,D=x(_,A,13),I=c,e=x(r,S,16),r=v^c,S=e^a,s=x(h,s,32),h=S+s|0,e=c+r|0,s=s>>>0>h>>>0?e+1|0:e,e=s+A|0,a=_+h|0,e=a>>>0<h>>>0?e+1|0:e,_=a^D,v=e,A=e^I,D=x(_,A,17),I=c,e=x(S,r,21),r=s^c,S=e^h,s=x(u,g,32),h=S+s|0,e=c+r|0,s=s>>>0>h>>>0?e+1|0:e,e=s+A|0,_=_+h|0,e=_>>>0<h>>>0?e+1|0:e,Y=_^D,A=e,D=e^I,e=x(S,r,16),s=s^c,u=s,e=e^h,g=x(e,s,21),h=c,s=x(a,v,32),v=s+e|0,e=c+u|0,a=g^v,e=s>>>0>v>>>0?e+1|0:e,s=e^h,_=x(_,A,32),h=c,M=B^v,I=e^N,n=n+8|0,(w|0)!=(n|0););n=w}u=0,r=q<<24;e:switch(Q-1|0){case 6:r=r|o[n+6|0]<<16;case 5:r=r|o[n+5|0]<<8;case 4:r=r|o[n+4|0];case 3:A=o[n+3|0],e=0,u=u|A<<24,r=e|r;case 2:A=o[n+2|0],e=0,u=u|A<<16,r=e|r;case 1:A=o[n+1|0],e=0,u=u|A<<8,r=e|r;case 0:u=o[n|0]|u;break;default:break e}return g=r,n=r^s,r=n,A=u^a,e=x(A,n,16),n=c,r=r+h|0,a=A+_|0,r=a>>>0<_>>>0?r+1|0:r,A=e^a,v=r,r=r^n,B=x(A,r,21),s=c,e=I+D|0,_=M+Y|0,e=_>>>0<M>>>0?e+1|0:e,n=e,h=A,A=x(_,e,32),h=h+A|0,e=c+r|0,e=A>>>0>h>>>0?e+1|0:e,A=h^B,r=s,s=e,r=r^e,I=x(A,r,16),q=c,e=a,w=x(Y,D,13)^_,a=w,_=e+a|0,B=c^n,e=B+v|0,v=A,n=_,e=n>>>0<a>>>0?e+1|0:e,A=x(n,e,32),a=v+A|0,r=c+r|0,_=A>>>0>a>>>0?r+1|0:r,A=_^q,S=A,q=a^I,v=q,B=x(w,B,17)^n,n=B,r=n+h|0,h=c^e,e=h+s|0,e=n>>>0>r>>>0?e+1|0:e,n=e,s=x(r,e,32),v=s+v|0,e=c+A|0,u=u^v,s=s>>>0>v>>>0?e+1|0:e,g=s^g,e=x(B,h,13),n=n^c,h=n,A=e^r,e=x(A,n,17),n=c,r=_+h|0,_=A+a|0,r=_>>>0<a>>>0?r+1|0:r,A=e^_,a=A+u|0,n=n^r,e=n+g|0,e=A>>>0>a>>>0?e+1|0:e,A=x(A,n,13)^a,h=e,n=e^c,w=x(A,n,17),u=c,g=x(q,S,21),q=s^c,B=g^v,r=x(_,r,32)^238,_=B+r|0,e=c+q|0,r=r>>>0>_>>>0?e+1|0:e,e=r+n|0,v=A+_|0,e=v>>>0<_>>>0?e+1|0:e,A=v^w,s=e,n=e^u,u=x(A,n,13),g=c,e=x(B,q,16),w=r^c,B=e^_,e=x(a,h,32),_=B+e|0,r=c+w|0,r=e>>>0>_>>>0?r+1|0:r,e=r+n|0,a=A+_|0,e=a>>>0<_>>>0?e+1|0:e,A=u^a,h=e,n=e^g,u=x(A,n,17),g=c,e=x(B,w,21),w=r^c,B=e^_,r=x(v,s,32),_=B+r|0,e=c+w|0,r=r>>>0>_>>>0?e+1|0:e,e=r+n|0,v=A+_|0,e=v>>>0<_>>>0?e+1|0:e,A=u^v,s=e,n=e^g,u=x(A,n,13),g=c,e=x(B,w,16),w=r^c,B=e^_,r=x(a,h,32),_=B+r|0,e=c+w|0,r=r>>>0>_>>>0?e+1|0:e,e=r+n|0,a=A+_|0,e=a>>>0<_>>>0?e+1|0:e,A=u^a,h=e,n=e^g,u=x(A,n,17),g=c,e=x(B,w,21),w=r^c,B=e^_,r=x(v,s,32),_=B+r|0,e=c+w|0,e=r>>>0>_>>>0?e+1|0:e,r=e+n|0,v=A+_|0,r=v>>>0<_>>>0?r+1|0:r,A=u^v,s=r,n=r^g,u=x(A,n,13),g=c,r=x(B,w,16),w=e^c,B=r^_,r=x(a,h,32),_=B+r|0,e=c+w|0,r=r>>>0>_>>>0?e+1|0:e,e=r+n|0,a=A+_|0,e=a>>>0<_>>>0?e+1|0:e,A=u^a,h=e,n=e^g,u=x(A,n,17),g=c,e=x(B,w,21),w=r^c,B=e^_,e=x(v,s,32),s=B+e|0,r=c+w|0,_=e>>>0>s>>>0?r+1|0:r,e=_+n|0,A=A+s|0,n=A>>>0<s>>>0?e+1|0:e,r=n^g,v=r,u=A^u,e=x(B,w,16),B=_^c,s=e^s,_=x(a,h,32),h=s+_|0,e=c+B|0,n=x(A,n,32),a=c,e=_>>>0>h>>>0?e+1|0:e,A=e,_=i,s=x(s,B,21)^h,g=s^(n^(h^u)),f[_|0]=g,f[_+1|0]=g>>>8,f[_+2|0]=g>>>16,f[_+3|0]=g>>>24,B=a^(e^r),r=e^c,e=B^r,f[_+4|0]=e,f[_+5|0]=e>>>8,f[_+6|0]=e>>>16,f[_+7|0]=e>>>24,e=r+a|0,_=n,n=n+s|0,e=_>>>0>n>>>0?e+1|0:e,g=n,_=x(s,r,16)^n,s=e,r=e^c,B=r,n=A,A=v,e=n+A|0,n=h,u=u^221,h=u,n=n+h|0,e=n>>>0<h>>>0?e+1|0:e,h=x(n,e,32),a=h+_|0,r=c+r|0,_=x(_,B,21)^a,h=h>>>0>a>>>0?r+1|0:r,r=h^c,q=x(_,r,16),B=c,A=x(u,A,13),w=e^c,e=s+w|0,u=n^A,A=g+u|0,e=A>>>0<g>>>0?e+1|0:e,n=e,s=_,_=x(A,e,32),v=s+_|0,e=c+r|0,s=_>>>0>v>>>0?e+1|0:e,e=s^B,B=e,q=v^q,g=x(q,e,21),_=c,e=x(u,w,17),w=n^c,r=h+w|0,u=e^A,A=a+u|0,r=A>>>0<a>>>0?r+1|0:r,n=x(A,r,32),e=B+c|0,h=_,n=n+q|0,_=n>>>0<q>>>0?e+1|0:e,e=h^_,B=e,h=n,q=g^n,g=x(q,e,16),a=c,n=x(u,w,13),w=r^c,e=s+w|0,u=n^A,A=v+u|0,e=A>>>0<v>>>0?e+1|0:e,r=e,n=x(A,e,32),e=B+c|0,n=n+q|0,s=n>>>0<q>>>0?e+1|0:e,e=s^a,B=e,v=n,q=g^n,g=x(q,e,21),a=c,n=x(u,w,17),w=r^c,e=_+w|0,u=n^A,A=h+u|0,e=A>>>0<h>>>0?e+1|0:e,r=e,n=x(A,e,32),e=B+c|0,n=n+q|0,_=n>>>0<q>>>0?e+1|0:e,e=_^a,B=e,h=n,q=g^n,g=x(q,e,16),a=c,n=x(u,w,13),u=r^c,e=s+u|0,s=n^A,A=v+s|0,e=A>>>0<v>>>0?e+1|0:e,n=x(A,e,32),r=B+c|0,n=n+q|0,r=n>>>0<q>>>0?r+1|0:r,g=x(n^g,r^a,21),a=c,A=x(s,u,17)^A,e=e^c,v=x(A,e,13),e=e+_|0,A=A+h|0,e=c^(A>>>0<h>>>0?e+1|0:e),s=A^v,_=x(s,e,17)^g,A=c^a,e=e+r|0,r=n,n=n+s|0,e=r>>>0>n>>>0?e+1|0:e,n=x(n,e,32)^_^n,f[i+8|0]=n,f[i+9|0]=n>>>8,f[i+10|0]=n>>>16,f[i+11|0]=n>>>24,n=e^(c^A),f[i+12|0]=n,f[i+13|0]=n>>>8,f[i+14|0]=n>>>16,f[i+15|0]=n>>>24,0}function Di(i,n,e,r,A){var _=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0,z=0,$=0;for(_=X-288|0,X=_,a=t[A+44>>2]^r>>>29,u=t[A+40>>2]^r<<3,B=t[A+36>>2]^e>>>29,r=t[A+32>>2]^e<<3,s=A- -64|0;e=t[A+124>>2],t[_+280>>2]=t[A+120>>2],t[_+284>>2]=e,e=t[A+116>>2],t[_+272>>2]=t[A+112>>2],t[_+276>>2]=e,e=t[A+100>>2],t[_+240>>2]=t[A+96>>2],t[_+244>>2]=e,e=t[A+108>>2],t[_+248>>2]=t[A+104>>2],t[_+252>>2]=e,e=t[A+116>>2],t[_+224>>2]=t[A+112>>2],t[_+228>>2]=e,e=t[A+124>>2],t[_+232>>2]=t[A+120>>2],t[_+236>>2]=e,h=_+256|0,H0(h,_+240|0,_+224|0),e=t[_+268>>2],t[A+120>>2]=t[_+264>>2],t[A+124>>2]=e,e=t[_+260>>2],t[A+112>>2]=t[_+256>>2],t[A+116>>2]=e,e=t[A+84>>2],t[_+208>>2]=t[A+80>>2],t[_+212>>2]=e,e=t[A+92>>2],t[_+216>>2]=t[A+88>>2],t[_+220>>2]=e,e=t[A+100>>2],t[_+192>>2]=t[A+96>>2],t[_+196>>2]=e,e=t[A+108>>2],t[_+200>>2]=t[A+104>>2],t[_+204>>2]=e,H0(h,_+208|0,_+192|0),e=t[_+268>>2],t[A+104>>2]=t[_+264>>2],t[A+108>>2]=e,e=t[_+260>>2],t[A+96>>2]=t[_+256>>2],t[A+100>>2]=e,e=t[s+4>>2],t[_+176>>2]=t[s>>2],t[_+180>>2]=e,e=t[s+12>>2],t[_+184>>2]=t[s+8>>2],t[_+188>>2]=e,e=t[A+84>>2],t[_+160>>2]=t[A+80>>2],t[_+164>>2]=e,e=t[A+92>>2],t[_+168>>2]=t[A+88>>2],t[_+172>>2]=e,H0(h,_+176|0,_+160|0),e=t[_+268>>2],t[A+88>>2]=t[_+264>>2],t[A+92>>2]=e,e=t[_+260>>2],t[A+80>>2]=t[_+256>>2],t[A+84>>2]=e,e=t[A+52>>2],t[_+144>>2]=t[A+48>>2],t[_+148>>2]=e,e=t[A+60>>2],t[_+152>>2]=t[A+56>>2],t[_+156>>2]=e,e=t[s+4>>2],t[_+128>>2]=t[s>>2],t[_+132>>2]=e,e=t[s+12>>2],t[_+136>>2]=t[s+8>>2],t[_+140>>2]=e,H0(h,_+144|0,_+128|0),e=t[_+268>>2],t[s+8>>2]=t[_+264>>2],t[s+12>>2]=e,e=t[_+260>>2],t[s>>2]=t[_+256>>2],t[s+4>>2]=e,e=t[A+36>>2],t[_+112>>2]=t[A+32>>2],t[_+116>>2]=e,e=t[A+44>>2],t[_+120>>2]=t[A+40>>2],t[_+124>>2]=e,e=t[A+52>>2],t[_+96>>2]=t[A+48>>2],t[_+100>>2]=e,e=t[A+60>>2],t[_+104>>2]=t[A+56>>2],t[_+108>>2]=e,H0(h,_+112|0,_+96|0),e=t[_+268>>2],t[A+56>>2]=t[_+264>>2],t[A+60>>2]=e,e=t[_+260>>2],t[A+48>>2]=t[_+256>>2],t[A+52>>2]=e,e=t[A+20>>2],t[_+80>>2]=t[A+16>>2],t[_+84>>2]=e,e=t[A+28>>2],t[_+88>>2]=t[A+24>>2],t[_+92>>2]=e,e=t[A+36>>2],t[_+64>>2]=t[A+32>>2],t[_+68>>2]=e,e=t[A+44>>2],t[_+72>>2]=t[A+40>>2],t[_+76>>2]=e,H0(h,_+80|0,_- -64|0),e=t[_+268>>2],t[A+40>>2]=t[_+264>>2],t[A+44>>2]=e,e=t[_+260>>2],t[A+32>>2]=t[_+256>>2],t[A+36>>2]=e,e=t[A+4>>2],t[_+48>>2]=t[A>>2],t[_+52>>2]=e,e=t[A+12>>2],t[_+56>>2]=t[A+8>>2],t[_+60>>2]=e,e=t[A+20>>2],t[_+32>>2]=t[A+16>>2],t[_+36>>2]=e,e=t[A+28>>2],t[_+40>>2]=t[A+24>>2],t[_+44>>2]=e,H0(h,_+48|0,_+32|0),e=t[_+268>>2],t[A+24>>2]=t[_+264>>2],t[A+28>>2]=e,e=t[_+260>>2],t[A+16>>2]=t[_+256>>2],t[A+20>>2]=e,e=t[_+276>>2],t[_+16>>2]=t[_+272>>2],t[_+20>>2]=e,e=t[_+284>>2],t[_+24>>2]=t[_+280>>2],t[_+28>>2]=e,e=t[A+4>>2],t[_>>2]=t[A>>2],t[_+4>>2]=e,e=t[A+12>>2],t[_+8>>2]=t[A+8>>2],t[_+12>>2]=e,H0(h,_+16|0,_),e=t[_+268>>2],t[A+8>>2]=t[_+264>>2],t[A+12>>2]=e,e=t[_+260>>2],t[A>>2]=t[_+256>>2],t[A+4>>2]=e,w=a^t[A+12>>2],t[A+12>>2]=w,q=u^t[A+8>>2],t[A+8>>2]=q,S=B^t[A+4>>2],t[A+4>>2]=S,I=r^t[A>>2],t[A>>2]=I,Y=r^t[s>>2],t[s>>2]=Y,N=B^t[A+68>>2],t[A+68>>2]=N,Q=u^t[A+72>>2],t[A+72>>2]=Q,G=a^t[A+76>>2],t[A+76>>2]=G,v=v+1|0,(v|0)!=7;);e:{r:{t:{if(e=n-16|0,e){if((e|0)==16)break t;break r}K=t[A+16>>2],z=t[A+48>>2],$=t[A+32>>2],D=t[A+96>>2],M=t[A+80>>2],g=t[A+20>>2],s=t[A+52>>2],h=t[A+36>>2],a=t[A+100>>2],u=t[A+84>>2],B=t[A+24>>2],v=t[A+56>>2],r=t[A+40>>2],e=t[A+104>>2],n=t[A+88>>2],A=w^(t[A+28>>2]^(t[A+60>>2]^(t[A+44>>2]^(t[A+92>>2]^t[A+108>>2])))^G),f[i+12|0]=A,f[i+13|0]=A>>>8,f[i+14|0]=A>>>16,f[i+15|0]=A>>>24,n=q^(n^e^r^v^B^Q),f[i+8|0]=n,f[i+9|0]=n>>>8,f[i+10|0]=n>>>16,f[i+11|0]=n>>>24,n=S^(N^(g^(s^(a^u^h)))),f[i+4|0]=n,f[i+5|0]=n>>>8,f[i+6|0]=n>>>16,f[i+7|0]=n>>>24,n=I^(Y^(K^(z^($^(D^M))))),f[i|0]=n,f[i+1|0]=n>>>8,f[i+2|0]=n>>>16,f[i+3|0]=n>>>24;break e}s=t[A+16>>2],h=t[A+48>>2],a=t[A+32>>2],u=t[A+20>>2],B=t[A+52>>2],v=t[A+36>>2],r=t[A+24>>2],e=t[A+56>>2],n=t[A+40>>2],g=w^(t[A+28>>2]^(t[A+60>>2]^t[A+44>>2])),f[i+12|0]=g,f[i+13|0]=g>>>8,f[i+14|0]=g>>>16,f[i+15|0]=g>>>24,n=q^(r^(n^e)),f[i+8|0]=n,f[i+9|0]=n>>>8,f[i+10|0]=n>>>16,f[i+11|0]=n>>>24,n=S^(u^(B^v)),f[i+4|0]=n,f[i+5|0]=n>>>8,f[i+6|0]=n>>>16,f[i+7|0]=n>>>24,n=I^(s^(h^a)),f[i|0]=n,f[i+1|0]=n>>>8,f[i+2|0]=n>>>16,f[i+3|0]=n>>>24,D=t[A+80>>2],M=t[A- -64>>2],g=t[A+112>>2],s=t[A+96>>2],h=t[A+84>>2],a=t[A+68>>2],u=t[A+116>>2],B=t[A+100>>2],v=t[A+88>>2],r=t[A+72>>2],e=t[A+120>>2],n=t[A+104>>2],A=t[A+92>>2]^(t[A+76>>2]^(t[A+124>>2]^t[A+108>>2])),f[i+28|0]=A,f[i+29|0]=A>>>8,f[i+30|0]=A>>>16,f[i+31|0]=A>>>24,n=v^(r^(n^e)),f[i+24|0]=n,f[i+25|0]=n>>>8,f[i+26|0]=n>>>16,f[i+27|0]=n>>>24,n=h^(a^(u^B)),f[i+20|0]=n,f[i+21|0]=n>>>8,f[i+22|0]=n>>>16,f[i+23|0]=n>>>24,n=D^(M^(s^g)),f[i+16|0]=n,f[i+17|0]=n>>>8,f[i+18|0]=n>>>16,f[i+19|0]=n>>>24;break e}if(!n)break e;k2(i,0,n)}X=_+288|0}function X5(i,n,e,r,A,_,s,h,a){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0,_=_|0,s=s|0,h=h|0,a=a|0;var u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0,z=0,$=0,V=0,W=0,e0=0,i0=0,o0=0,s0=0,h0=0,u0=0,y0=0,f0=0,B0=0,c0=0,j0=0,d0=0,w0=0,T0=0,P0=0,I0=0;if(B=X,G=B,B=B-224&-32,X=B,Hi(a,h,B+96|0),h=0,s>>>0>63)for(a=64;Ii(_+h|0,B+96|0),h=a,a=h- -64|0,a>>>0<=s>>>0;);if(a=h|32,a>>>0<=s>>>0)for(;jn(_+h|0,B+96|0),h=a,a=h+32|0,a>>>0<=s>>>0;);a=s&31,a&&(v=32-a|0,v&&k2(a|B- -64,0,v),a&&_2(B- -64|0,_+h|0,a),jn(B- -64|0,B+96|0));e:{if(!i){if(_=32,h=0,e>>>0<32)break e;for(;Mi(B+32|0,n+h|0,B+96|0),h=_,_=_+32|0,_>>>0<=e>>>0;);break e}if(_=32,h=0,e>>>0<32)break e;for(;Mi(i+h|0,n+h|0,B+96|0),h=_,_=_+32|0,_>>>0<=e>>>0;);}a=e&31,a&&(M=i?i+h|0:B+32|0,g=n+h|0,_=B+96|0,n=X-320|0,X=n,h=a+(n+256|0)|0,v=32-a|0,u=!v,u||k2(h,0,v),Y=!a,Y||_2(n+256|0,g,a),K=t[_+16>>2],z=t[_+48>>2],$=t[_+20>>2],V=t[_+52>>2],W=t[_+24>>2],e0=t[_+56>>2],i0=t[_+28>>2],o0=t[_+60>>2],g=t[_+32>>2],s0=t[_+80>>2],h0=t[_+112>>2],w=t[_+96>>2],q=t[_+36>>2],u0=t[_+84>>2],y0=t[_+116>>2],S=t[_+100>>2],I=t[_+40>>2],f0=t[_+88>>2],B0=t[_+120>>2],D=t[_+104>>2],c0=t[n+256>>2],j0=t[n+260>>2],d0=t[n+264>>2],w0=t[n+268>>2],T0=t[n+272>>2],P0=t[n+276>>2],I0=t[n+280>>2],N=t[_+44>>2],Q=t[_+108>>2],t[n+284>>2]=N^(Q&t[_+124>>2]^(t[_+92>>2]^t[n+284>>2])),t[n+280>>2]=D&B0^(f0^I0)^I,t[n+276>>2]=S&y0^(u0^P0)^q,t[n+272>>2]=w&h0^(s0^T0)^g,t[n+268>>2]=Q^(o0&N^(i0^w0)),t[n+264>>2]=I&e0^(W^d0)^D,t[n+260>>2]=q&V^($^j0)^S,t[n+256>>2]=g&z^(K^c0)^w,u||k2(h,0,v),Y||_2(M,n+256|0,a),v=t[n+284>>2],g=t[n+280>>2],w=t[n+276>>2],q=t[n+272>>2],S=t[n+256>>2],I=t[n+260>>2],D=t[n+264>>2],M=t[n+268>>2],h=t[_+124>>2],t[n+312>>2]=t[_+120>>2],t[n+316>>2]=h,h=t[_+116>>2],t[n+304>>2]=t[_+112>>2],t[n+308>>2]=h,h=t[_+100>>2],t[n+240>>2]=t[_+96>>2],t[n+244>>2]=h,h=t[_+108>>2],t[n+248>>2]=t[_+104>>2],t[n+252>>2]=h,h=t[_+116>>2],t[n+224>>2]=t[_+112>>2],t[n+228>>2]=h,h=t[_+124>>2],t[n+232>>2]=t[_+120>>2],t[n+236>>2]=h,h=n+288|0,H0(h,n+240|0,n+224|0),a=t[n+300>>2],t[_+120>>2]=t[n+296>>2],t[_+124>>2]=a,a=t[n+292>>2],t[_+112>>2]=t[n+288>>2],t[_+116>>2]=a,a=t[_+84>>2],t[n+208>>2]=t[_+80>>2],t[n+212>>2]=a,a=t[_+92>>2],t[n+216>>2]=t[_+88>>2],t[n+220>>2]=a,a=t[_+100>>2],t[n+192>>2]=t[_+96>>2],t[n+196>>2]=a,a=t[_+108>>2],t[n+200>>2]=t[_+104>>2],t[n+204>>2]=a,H0(h,n+208|0,n+192|0),a=t[n+300>>2],t[_+104>>2]=t[n+296>>2],t[_+108>>2]=a,a=t[n+292>>2],t[_+96>>2]=t[n+288>>2],t[_+100>>2]=a,a=_- -64|0,u=t[a+4>>2],t[n+176>>2]=t[a>>2],t[n+180>>2]=u,u=t[_+76>>2],t[n+184>>2]=t[_+72>>2],t[n+188>>2]=u,u=t[_+84>>2],t[n+160>>2]=t[_+80>>2],t[n+164>>2]=u,u=t[_+92>>2],t[n+168>>2]=t[_+88>>2],t[n+172>>2]=u,H0(h,n+176|0,n+160|0),u=t[n+300>>2],t[_+88>>2]=t[n+296>>2],t[_+92>>2]=u,u=t[n+292>>2],t[_+80>>2]=t[n+288>>2],t[_+84>>2]=u,u=t[_+52>>2],t[n+144>>2]=t[_+48>>2],t[n+148>>2]=u,u=t[_+60>>2],t[n+152>>2]=t[_+56>>2],t[n+156>>2]=u,u=t[a+4>>2],t[n+128>>2]=t[a>>2],t[n+132>>2]=u,u=t[_+76>>2],t[n+136>>2]=t[_+72>>2],t[n+140>>2]=u,H0(h,n+144|0,n+128|0),u=t[n+300>>2],t[_+72>>2]=t[n+296>>2],t[_+76>>2]=u,u=t[n+292>>2],t[a>>2]=t[n+288>>2],t[a+4>>2]=u,u=t[_+36>>2],t[n+112>>2]=t[_+32>>2],t[n+116>>2]=u,u=t[_+44>>2],t[n+120>>2]=t[_+40>>2],t[n+124>>2]=u,u=t[_+52>>2],t[n+96>>2]=t[_+48>>2],t[n+100>>2]=u,u=t[_+60>>2],t[n+104>>2]=t[_+56>>2],t[n+108>>2]=u,H0(h,n+112|0,n+96|0),u=t[n+300>>2],t[_+56>>2]=t[n+296>>2],t[_+60>>2]=u,u=t[n+292>>2],t[_+48>>2]=t[n+288>>2],t[_+52>>2]=u,u=t[_+20>>2],t[n+80>>2]=t[_+16>>2],t[n+84>>2]=u,u=t[_+28>>2],t[n+88>>2]=t[_+24>>2],t[n+92>>2]=u,u=t[_+36>>2],t[n+64>>2]=t[_+32>>2],t[n+68>>2]=u,u=t[_+44>>2],t[n+72>>2]=t[_+40>>2],t[n+76>>2]=u,H0(h,n+80|0,n- -64|0),u=t[n+300>>2],t[_+40>>2]=t[n+296>>2],t[_+44>>2]=u,u=t[n+292>>2],t[_+32>>2]=t[n+288>>2],t[_+36>>2]=u,u=t[_+4>>2],t[n+48>>2]=t[_>>2],t[n+52>>2]=u,u=t[_+12>>2],t[n+56>>2]=t[_+8>>2],t[n+60>>2]=u,u=t[_+20>>2],t[n+32>>2]=t[_+16>>2],t[n+36>>2]=u,u=t[_+28>>2],t[n+40>>2]=t[_+24>>2],t[n+44>>2]=u,H0(h,n+48|0,n+32|0),u=t[n+300>>2],t[_+24>>2]=t[n+296>>2],t[_+28>>2]=u,u=t[n+292>>2],t[_+16>>2]=t[n+288>>2],t[_+20>>2]=u,u=t[n+308>>2],t[n+16>>2]=t[n+304>>2],t[n+20>>2]=u,u=t[n+316>>2],t[n+24>>2]=t[n+312>>2],t[n+28>>2]=u,u=t[_+4>>2],t[n>>2]=t[_>>2],t[n+4>>2]=u,u=t[_+12>>2],t[n+8>>2]=t[_+8>>2],t[n+12>>2]=u,H0(h,n+16|0,n),h=t[n+300>>2],t[_+8>>2]=t[n+296>>2],t[_+12>>2]=h,h=t[n+292>>2],t[_>>2]=t[n+288>>2],t[_+4>>2]=h,t[_+12>>2]=M^t[_+12>>2],t[_+8>>2]=D^t[_+8>>2],t[_+4>>2]=I^t[_+4>>2],t[_>>2]=S^t[_>>2],t[a>>2]=q^t[a>>2],t[_+68>>2]=w^t[_+68>>2],t[_+72>>2]=g^t[_+72>>2],t[_+76>>2]=v^t[_+76>>2],X=n+320|0),Di(B,A,s,e,B+96|0),h=-1;e:{r:{if(n=A-16|0,n){if((n|0)==16)break r;break e}h=cr(B,r);break e}h=Vr(B,r)}return!e|(!i|!h)||k2(i,0,e),X=G,h|0}function Ci(i,n){var e=0,r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0;e=X-416|0,X=e,s=o[i+16|0]|o[i+17|0]<<8|(o[i+18|0]<<16|o[i+19|0]<<24),h=o[i+20|0]|o[i+21|0]<<8|(o[i+22|0]<<16|o[i+23|0]<<24),a=o[i+24|0]|o[i+25|0]<<8|(o[i+26|0]<<16|o[i+27|0]<<24),u=o[i+28|0]|o[i+29|0]<<8|(o[i+30|0]<<16|o[i+31|0]<<24),_=o[i+4|0]|o[i+5|0]<<8|(o[i+6|0]<<16|o[i+7|0]<<24),B=o[i+8|0]|o[i+9|0]<<8|(o[i+10|0]<<16|o[i+11|0]<<24),v=o[i+12|0]|o[i+13|0]<<8|(o[i+14|0]<<16|o[i+15|0]<<24),g=o[i|0]|o[i+1|0]<<8|(o[i+2|0]<<16|o[i+3|0]<<24),i=t[n+92>>2],t[e+408>>2]=t[n+88>>2],t[e+412>>2]=i,i=t[n+84>>2],t[e+400>>2]=t[n+80>>2],t[e+404>>2]=i,A=n- -64|0,i=A,r=t[i+4>>2],t[e+368>>2]=t[i>>2],t[e+372>>2]=r,i=t[n+76>>2],t[e+376>>2]=t[n+72>>2],t[e+380>>2]=i,i=t[n+84>>2],t[e+352>>2]=t[n+80>>2],t[e+356>>2]=i,i=t[n+92>>2],t[e+360>>2]=t[n+88>>2],t[e+364>>2]=i,i=e+384|0,H0(i,e+368|0,e+352|0),r=t[e+396>>2],t[n+88>>2]=t[e+392>>2],t[n+92>>2]=r,r=t[e+388>>2],t[n+80>>2]=t[e+384>>2],t[n+84>>2]=r,r=t[n+52>>2],t[e+336>>2]=t[n+48>>2],t[e+340>>2]=r,r=t[n+60>>2],t[e+344>>2]=t[n+56>>2],t[e+348>>2]=r,r=t[A+4>>2],t[e+320>>2]=t[A>>2],t[e+324>>2]=r,r=t[n+76>>2],t[e+328>>2]=t[n+72>>2],t[e+332>>2]=r,H0(i,e+336|0,e+320|0),r=t[e+396>>2],t[n+72>>2]=t[e+392>>2],t[n+76>>2]=r,r=t[e+388>>2],t[A>>2]=t[e+384>>2],t[A+4>>2]=r,r=t[n+36>>2],t[e+304>>2]=t[n+32>>2],t[e+308>>2]=r,r=t[n+44>>2],t[e+312>>2]=t[n+40>>2],t[e+316>>2]=r,r=t[n+52>>2],t[e+288>>2]=t[n+48>>2],t[e+292>>2]=r,r=t[n+60>>2],t[e+296>>2]=t[n+56>>2],t[e+300>>2]=r,H0(i,e+304|0,e+288|0),r=t[e+396>>2],t[n+56>>2]=t[e+392>>2],t[n+60>>2]=r,r=t[e+388>>2],t[n+48>>2]=t[e+384>>2],t[n+52>>2]=r,r=t[n+20>>2],t[e+272>>2]=t[n+16>>2],t[e+276>>2]=r,r=t[n+28>>2],t[e+280>>2]=t[n+24>>2],t[e+284>>2]=r,r=t[n+36>>2],t[e+256>>2]=t[n+32>>2],t[e+260>>2]=r,r=t[n+44>>2],t[e+264>>2]=t[n+40>>2],t[e+268>>2]=r,H0(i,e+272|0,e+256|0),r=t[e+396>>2],t[n+40>>2]=t[e+392>>2],t[n+44>>2]=r,r=t[e+388>>2],t[n+32>>2]=t[e+384>>2],t[n+36>>2]=r,r=t[n+4>>2],t[e+240>>2]=t[n>>2],t[e+244>>2]=r,r=t[n+12>>2],t[e+248>>2]=t[n+8>>2],t[e+252>>2]=r,r=t[n+20>>2],t[e+224>>2]=t[n+16>>2],t[e+228>>2]=r,r=t[n+28>>2],t[e+232>>2]=t[n+24>>2],t[e+236>>2]=r,H0(i,e+240|0,e+224|0),r=t[e+396>>2],t[n+24>>2]=t[e+392>>2],t[n+28>>2]=r,r=t[e+388>>2],t[n+16>>2]=t[e+384>>2],t[n+20>>2]=r,r=t[e+404>>2],t[e+208>>2]=t[e+400>>2],t[e+212>>2]=r,r=t[e+412>>2],t[e+216>>2]=t[e+408>>2],t[e+220>>2]=r,r=t[n+4>>2],t[e+192>>2]=t[n>>2],t[e+196>>2]=r,r=t[n+12>>2],t[e+200>>2]=t[n+8>>2],t[e+204>>2]=r,H0(i,e+208|0,e+192|0),r=t[e+384>>2],w=t[e+388>>2],q=t[e+392>>2],t[n+12>>2]=t[e+396>>2]^v,t[n+8>>2]=B^q,t[n+4>>2]=_^w,t[n>>2]=r^g,_=t[n+92>>2],t[e+408>>2]=t[n+88>>2],t[e+412>>2]=_,_=t[n+84>>2],t[e+400>>2]=t[n+80>>2],t[e+404>>2]=_,_=t[A+4>>2],t[e+176>>2]=t[A>>2],t[e+180>>2]=_,_=t[n+76>>2],t[e+184>>2]=t[n+72>>2],t[e+188>>2]=_,_=t[n+84>>2],t[e+160>>2]=t[n+80>>2],t[e+164>>2]=_,_=t[n+92>>2],t[e+168>>2]=t[n+88>>2],t[e+172>>2]=_,H0(i,e+176|0,e+160|0),_=t[e+396>>2],t[n+88>>2]=t[e+392>>2],t[n+92>>2]=_,_=t[e+388>>2],t[n+80>>2]=t[e+384>>2],t[n+84>>2]=_,_=t[n+52>>2],t[e+144>>2]=t[n+48>>2],t[e+148>>2]=_,_=t[n+60>>2],t[e+152>>2]=t[n+56>>2],t[e+156>>2]=_,_=t[A+4>>2],t[e+128>>2]=t[A>>2],t[e+132>>2]=_,_=t[n+76>>2],t[e+136>>2]=t[n+72>>2],t[e+140>>2]=_,H0(i,e+144|0,e+128|0),_=t[e+396>>2],t[n+72>>2]=t[e+392>>2],t[n+76>>2]=_,_=t[e+388>>2],t[A>>2]=t[e+384>>2],t[A+4>>2]=_,A=t[n+36>>2],t[e+112>>2]=t[n+32>>2],t[e+116>>2]=A,A=t[n+44>>2],t[e+120>>2]=t[n+40>>2],t[e+124>>2]=A,A=t[n+52>>2],t[e+96>>2]=t[n+48>>2],t[e+100>>2]=A,A=t[n+60>>2],t[e+104>>2]=t[n+56>>2],t[e+108>>2]=A,H0(i,e+112|0,e+96|0),A=t[e+396>>2],t[n+56>>2]=t[e+392>>2],t[n+60>>2]=A,A=t[e+388>>2],t[n+48>>2]=t[e+384>>2],t[n+52>>2]=A,A=t[n+20>>2],t[e+80>>2]=t[n+16>>2],t[e+84>>2]=A,A=t[n+28>>2],t[e+88>>2]=t[n+24>>2],t[e+92>>2]=A,A=t[n+36>>2],t[e+64>>2]=t[n+32>>2],t[e+68>>2]=A,A=t[n+44>>2],t[e+72>>2]=t[n+40>>2],t[e+76>>2]=A,H0(i,e+80|0,e- -64|0),A=t[e+396>>2],t[n+40>>2]=t[e+392>>2],t[n+44>>2]=A,A=t[e+388>>2],t[n+32>>2]=t[e+384>>2],t[n+36>>2]=A,A=t[n+4>>2],t[e+48>>2]=t[n>>2],t[e+52>>2]=A,A=t[n+12>>2],t[e+56>>2]=t[n+8>>2],t[e+60>>2]=A,A=t[n+20>>2],t[e+32>>2]=t[n+16>>2],t[e+36>>2]=A,A=t[n+28>>2],t[e+40>>2]=t[n+24>>2],t[e+44>>2]=A,H0(i,e+48|0,e+32|0),A=t[e+396>>2],t[n+24>>2]=t[e+392>>2],t[n+28>>2]=A,A=t[e+388>>2],t[n+16>>2]=t[e+384>>2],t[n+20>>2]=A,A=t[e+404>>2],t[e+16>>2]=t[e+400>>2],t[e+20>>2]=A,A=t[e+412>>2],t[e+24>>2]=t[e+408>>2],t[e+28>>2]=A,A=t[n+4>>2],t[e>>2]=t[n>>2],t[e+4>>2]=A,A=t[n+12>>2],t[e+8>>2]=t[n+8>>2],t[e+12>>2]=A,H0(i,e+16|0,e),i=t[e+384>>2],A=t[e+388>>2],_=t[e+392>>2],t[n+12>>2]=t[e+396>>2]^u,t[n+8>>2]=_^a,t[n+4>>2]=A^h,t[n>>2]=i^s,X=e+416|0}function Mi(i,n,e){var r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0,z=0,$=0,V=0,W=0,e0=0,i0=0,o0=0,s0=0,h0=0,u0=0;r=X-288|0,X=r,D=t[e+16>>2],M=t[e+48>>2],Y=t[e+20>>2],N=o[n+4|0]|o[n+5|0]<<8|(o[n+6|0]<<16|o[n+7|0]<<24),Q=t[e+52>>2],G=t[e+24>>2],K=o[n+8|0]|o[n+9|0]<<8|(o[n+10|0]<<16|o[n+11|0]<<24),z=t[e+56>>2],a=t[e+28>>2],$=o[n+12|0]|o[n+13|0]<<8|(o[n+14|0]<<16|o[n+15|0]<<24),V=t[e+60>>2],_=t[e+32>>2],u=t[e+80>>2],W=o[n+16|0]|o[n+17|0]<<8|(o[n+18|0]<<16|o[n+19|0]<<24),e0=t[e+112>>2],A=t[e+96>>2],s=t[e+36>>2],B=t[e+84>>2],i0=o[n+20|0]|o[n+21|0]<<8|(o[n+22|0]<<16|o[n+23|0]<<24),o0=t[e+116>>2],w=t[e+100>>2],h=t[e+40>>2],v=t[e+88>>2],s0=o[n+24|0]|o[n+25|0]<<8|(o[n+26|0]<<16|o[n+27|0]<<24),h0=t[e+120>>2],q=t[e+104>>2],u0=o[n|0]|o[n+1|0]<<8|(o[n+2|0]<<16|o[n+3|0]<<24),S=t[e+44>>2],I=t[e+108>>2],g=S^(I&t[e+124>>2]^(t[e+92>>2]^(o[n+28|0]|o[n+29|0]<<8|(o[n+30|0]<<16|o[n+31|0]<<24)))),f[i+28|0]=g,f[i+29|0]=g>>>8,f[i+30|0]=g>>>16,f[i+31|0]=g>>>24,v=h^(q&h0^(v^s0)),f[i+24|0]=v,f[i+25|0]=v>>>8,f[i+26|0]=v>>>16,f[i+27|0]=v>>>24,B=s^(w&o0^(B^i0)),f[i+20|0]=B,f[i+21|0]=B>>>8,f[i+22|0]=B>>>16,f[i+23|0]=B>>>24,u=_^(A&e0^(u^W)),f[i+16|0]=u,f[i+17|0]=u>>>8,f[i+18|0]=u>>>16,f[i+19|0]=u>>>24,a=V&S^(a^$)^I,f[i+12|0]=a,f[i+13|0]=a>>>8,f[i+14|0]=a>>>16,f[i+15|0]=a>>>24,h=h&z^(G^K)^q,f[i+8|0]=h,f[i+9|0]=h>>>8,f[i+10|0]=h>>>16,f[i+11|0]=h>>>24,s=s&Q^(Y^N)^w,f[i+4|0]=s,f[i+5|0]=s>>>8,f[i+6|0]=s>>>16,f[i+7|0]=s>>>24,_=A^(_&M^(D^u0)),f[i|0]=_,f[i+1|0]=_>>>8,f[i+2|0]=_>>>16,f[i+3|0]=_>>>24,i=t[e+124>>2],t[r+280>>2]=t[e+120>>2],t[r+284>>2]=i,i=t[e+116>>2],t[r+272>>2]=t[e+112>>2],t[r+276>>2]=i,i=t[e+100>>2],t[r+240>>2]=t[e+96>>2],t[r+244>>2]=i,i=t[e+108>>2],t[r+248>>2]=t[e+104>>2],t[r+252>>2]=i,i=t[e+116>>2],t[r+224>>2]=t[e+112>>2],t[r+228>>2]=i,i=t[e+124>>2],t[r+232>>2]=t[e+120>>2],t[r+236>>2]=i,i=r+256|0,H0(i,r+240|0,r+224|0),n=t[r+268>>2],t[e+120>>2]=t[r+264>>2],t[e+124>>2]=n,n=t[r+260>>2],t[e+112>>2]=t[r+256>>2],t[e+116>>2]=n,n=t[e+84>>2],t[r+208>>2]=t[e+80>>2],t[r+212>>2]=n,n=t[e+92>>2],t[r+216>>2]=t[e+88>>2],t[r+220>>2]=n,n=t[e+100>>2],t[r+192>>2]=t[e+96>>2],t[r+196>>2]=n,n=t[e+108>>2],t[r+200>>2]=t[e+104>>2],t[r+204>>2]=n,H0(i,r+208|0,r+192|0),n=t[r+268>>2],t[e+104>>2]=t[r+264>>2],t[e+108>>2]=n,n=t[r+260>>2],t[e+96>>2]=t[r+256>>2],t[e+100>>2]=n,n=e- -64|0,A=t[n+4>>2],t[r+176>>2]=t[n>>2],t[r+180>>2]=A,A=t[e+76>>2],t[r+184>>2]=t[e+72>>2],t[r+188>>2]=A,A=t[e+84>>2],t[r+160>>2]=t[e+80>>2],t[r+164>>2]=A,A=t[e+92>>2],t[r+168>>2]=t[e+88>>2],t[r+172>>2]=A,H0(i,r+176|0,r+160|0),A=t[r+268>>2],t[e+88>>2]=t[r+264>>2],t[e+92>>2]=A,A=t[r+260>>2],t[e+80>>2]=t[r+256>>2],t[e+84>>2]=A,A=t[e+52>>2],t[r+144>>2]=t[e+48>>2],t[r+148>>2]=A,A=t[e+60>>2],t[r+152>>2]=t[e+56>>2],t[r+156>>2]=A,A=t[n+4>>2],t[r+128>>2]=t[n>>2],t[r+132>>2]=A,A=t[e+76>>2],t[r+136>>2]=t[e+72>>2],t[r+140>>2]=A,H0(i,r+144|0,r+128|0),A=t[r+268>>2],t[e+72>>2]=t[r+264>>2],t[e+76>>2]=A,A=t[r+260>>2],t[n>>2]=t[r+256>>2],t[n+4>>2]=A,A=t[e+36>>2],t[r+112>>2]=t[e+32>>2],t[r+116>>2]=A,A=t[e+44>>2],t[r+120>>2]=t[e+40>>2],t[r+124>>2]=A,A=t[e+52>>2],t[r+96>>2]=t[e+48>>2],t[r+100>>2]=A,A=t[e+60>>2],t[r+104>>2]=t[e+56>>2],t[r+108>>2]=A,H0(i,r+112|0,r+96|0),A=t[r+268>>2],t[e+56>>2]=t[r+264>>2],t[e+60>>2]=A,A=t[r+260>>2],t[e+48>>2]=t[r+256>>2],t[e+52>>2]=A,A=t[e+20>>2],t[r+80>>2]=t[e+16>>2],t[r+84>>2]=A,A=t[e+28>>2],t[r+88>>2]=t[e+24>>2],t[r+92>>2]=A,A=t[e+36>>2],t[r+64>>2]=t[e+32>>2],t[r+68>>2]=A,A=t[e+44>>2],t[r+72>>2]=t[e+40>>2],t[r+76>>2]=A,H0(i,r+80|0,r- -64|0),A=t[r+268>>2],t[e+40>>2]=t[r+264>>2],t[e+44>>2]=A,A=t[r+260>>2],t[e+32>>2]=t[r+256>>2],t[e+36>>2]=A,A=t[e+4>>2],t[r+48>>2]=t[e>>2],t[r+52>>2]=A,A=t[e+12>>2],t[r+56>>2]=t[e+8>>2],t[r+60>>2]=A,A=t[e+20>>2],t[r+32>>2]=t[e+16>>2],t[r+36>>2]=A,A=t[e+28>>2],t[r+40>>2]=t[e+24>>2],t[r+44>>2]=A,H0(i,r+48|0,r+32|0),A=t[r+268>>2],t[e+24>>2]=t[r+264>>2],t[e+28>>2]=A,A=t[r+260>>2],t[e+16>>2]=t[r+256>>2],t[e+20>>2]=A,A=t[r+276>>2],t[r+16>>2]=t[r+272>>2],t[r+20>>2]=A,A=t[r+284>>2],t[r+24>>2]=t[r+280>>2],t[r+28>>2]=A,A=t[e+4>>2],t[r>>2]=t[e>>2],t[r+4>>2]=A,A=t[e+12>>2],t[r+8>>2]=t[e+8>>2],t[r+12>>2]=A,H0(i,r+16|0,r),i=t[r+268>>2],t[e+8>>2]=t[r+264>>2],t[e+12>>2]=i,i=t[r+260>>2],t[e>>2]=t[r+256>>2],t[e+4>>2]=i,t[e+12>>2]=a^t[e+12>>2],t[e+8>>2]=h^t[e+8>>2],t[e+4>>2]=s^t[e+4>>2],t[e>>2]=_^t[e>>2],t[n>>2]=u^t[n>>2],t[e+68>>2]=B^t[e+68>>2],t[e+72>>2]=v^t[e+72>>2],t[e+76>>2]=g^t[e+76>>2],X=r+288|0}function Ei(i,n,e){var r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0,z=0,$=0,V=0,W=0,e0=0,i0=0,o0=0,s0=0,h0=0,u0=0;r=X-288|0,X=r,N=t[e+16>>2],Q=t[e+48>>2],_=o[n+4|0]|o[n+5|0]<<8|(o[n+6|0]<<16|o[n+7|0]<<24),G=t[e+20>>2],K=t[e+52>>2],s=o[n+8|0]|o[n+9|0]<<8|(o[n+10|0]<<16|o[n+11|0]<<24),z=t[e+24>>2],$=t[e+56>>2],h=o[n+12|0]|o[n+13|0]<<8|(o[n+14|0]<<16|o[n+15|0]<<24),V=t[e+28>>2],W=t[e+60>>2],A=t[e+32>>2],a=o[n+16|0]|o[n+17|0]<<8|(o[n+18|0]<<16|o[n+19|0]<<24),e0=t[e+80>>2],i0=t[e+112>>2],u=t[e+96>>2],B=t[e+36>>2],v=o[n+20|0]|o[n+21|0]<<8|(o[n+22|0]<<16|o[n+23|0]<<24),o0=t[e+84>>2],s0=t[e+116>>2],g=t[e+100>>2],w=t[e+40>>2],q=o[n+24|0]|o[n+25|0]<<8|(o[n+26|0]<<16|o[n+27|0]<<24),h0=t[e+88>>2],u0=t[e+120>>2],S=t[e+104>>2],I=o[n|0]|o[n+1|0]<<8|(o[n+2|0]<<16|o[n+3|0]<<24),D=t[e+44>>2],M=o[n+28|0]|o[n+29|0]<<8|(o[n+30|0]<<16|o[n+31|0]<<24),Y=t[e+108>>2],n=D^(M^(t[e+92>>2]^Y&t[e+124>>2])),f[i+28|0]=n,f[i+29|0]=n>>>8,f[i+30|0]=n>>>16,f[i+31|0]=n>>>24,n=S&u0^h0^q^w,f[i+24|0]=n,f[i+25|0]=n>>>8,f[i+26|0]=n>>>16,f[i+27|0]=n>>>24,n=g&s0^o0^v^B,f[i+20|0]=n,f[i+21|0]=n>>>8,f[i+22|0]=n>>>16,f[i+23|0]=n>>>24,n=A^(u&i0^e0^a),f[i+16|0]=n,f[i+17|0]=n>>>8,f[i+18|0]=n>>>16,f[i+19|0]=n>>>24,n=W&D^V^h^Y,f[i+12|0]=n,f[i+13|0]=n>>>8,f[i+14|0]=n>>>16,f[i+15|0]=n>>>24,n=w&$^z^s^S,f[i+8|0]=n,f[i+9|0]=n>>>8,f[i+10|0]=n>>>16,f[i+11|0]=n>>>24,n=B&K^G^_^g,f[i+4|0]=n,f[i+5|0]=n>>>8,f[i+6|0]=n>>>16,f[i+7|0]=n>>>24,n=A&Q^N^I^u,f[i|0]=n,f[i+1|0]=n>>>8,f[i+2|0]=n>>>16,f[i+3|0]=n>>>24,i=t[e+124>>2],t[r+280>>2]=t[e+120>>2],t[r+284>>2]=i,i=t[e+116>>2],t[r+272>>2]=t[e+112>>2],t[r+276>>2]=i,i=t[e+100>>2],t[r+240>>2]=t[e+96>>2],t[r+244>>2]=i,i=t[e+108>>2],t[r+248>>2]=t[e+104>>2],t[r+252>>2]=i,i=t[e+116>>2],t[r+224>>2]=t[e+112>>2],t[r+228>>2]=i,i=t[e+124>>2],t[r+232>>2]=t[e+120>>2],t[r+236>>2]=i,i=r+256|0,H0(i,r+240|0,r+224|0),n=t[r+268>>2],t[e+120>>2]=t[r+264>>2],t[e+124>>2]=n,n=t[r+260>>2],t[e+112>>2]=t[r+256>>2],t[e+116>>2]=n,n=t[e+84>>2],t[r+208>>2]=t[e+80>>2],t[r+212>>2]=n,n=t[e+92>>2],t[r+216>>2]=t[e+88>>2],t[r+220>>2]=n,n=t[e+100>>2],t[r+192>>2]=t[e+96>>2],t[r+196>>2]=n,n=t[e+108>>2],t[r+200>>2]=t[e+104>>2],t[r+204>>2]=n,H0(i,r+208|0,r+192|0),n=t[r+268>>2],t[e+104>>2]=t[r+264>>2],t[e+108>>2]=n,n=t[r+260>>2],t[e+96>>2]=t[r+256>>2],t[e+100>>2]=n,n=e- -64|0,A=t[n+4>>2],t[r+176>>2]=t[n>>2],t[r+180>>2]=A,A=t[e+76>>2],t[r+184>>2]=t[e+72>>2],t[r+188>>2]=A,A=t[e+84>>2],t[r+160>>2]=t[e+80>>2],t[r+164>>2]=A,A=t[e+92>>2],t[r+168>>2]=t[e+88>>2],t[r+172>>2]=A,H0(i,r+176|0,r+160|0),A=t[r+268>>2],t[e+88>>2]=t[r+264>>2],t[e+92>>2]=A,A=t[r+260>>2],t[e+80>>2]=t[r+256>>2],t[e+84>>2]=A,A=t[e+52>>2],t[r+144>>2]=t[e+48>>2],t[r+148>>2]=A,A=t[e+60>>2],t[r+152>>2]=t[e+56>>2],t[r+156>>2]=A,A=t[n+4>>2],t[r+128>>2]=t[n>>2],t[r+132>>2]=A,A=t[e+76>>2],t[r+136>>2]=t[e+72>>2],t[r+140>>2]=A,H0(i,r+144|0,r+128|0),A=t[r+268>>2],t[e+72>>2]=t[r+264>>2],t[e+76>>2]=A,A=t[r+260>>2],t[n>>2]=t[r+256>>2],t[n+4>>2]=A,A=t[e+36>>2],t[r+112>>2]=t[e+32>>2],t[r+116>>2]=A,A=t[e+44>>2],t[r+120>>2]=t[e+40>>2],t[r+124>>2]=A,A=t[e+52>>2],t[r+96>>2]=t[e+48>>2],t[r+100>>2]=A,A=t[e+60>>2],t[r+104>>2]=t[e+56>>2],t[r+108>>2]=A,H0(i,r+112|0,r+96|0),A=t[r+268>>2],t[e+56>>2]=t[r+264>>2],t[e+60>>2]=A,A=t[r+260>>2],t[e+48>>2]=t[r+256>>2],t[e+52>>2]=A,A=t[e+20>>2],t[r+80>>2]=t[e+16>>2],t[r+84>>2]=A,A=t[e+28>>2],t[r+88>>2]=t[e+24>>2],t[r+92>>2]=A,A=t[e+36>>2],t[r+64>>2]=t[e+32>>2],t[r+68>>2]=A,A=t[e+44>>2],t[r+72>>2]=t[e+40>>2],t[r+76>>2]=A,H0(i,r+80|0,r- -64|0),A=t[r+268>>2],t[e+40>>2]=t[r+264>>2],t[e+44>>2]=A,A=t[r+260>>2],t[e+32>>2]=t[r+256>>2],t[e+36>>2]=A,A=t[e+4>>2],t[r+48>>2]=t[e>>2],t[r+52>>2]=A,A=t[e+12>>2],t[r+56>>2]=t[e+8>>2],t[r+60>>2]=A,A=t[e+20>>2],t[r+32>>2]=t[e+16>>2],t[r+36>>2]=A,A=t[e+28>>2],t[r+40>>2]=t[e+24>>2],t[r+44>>2]=A,H0(i,r+48|0,r+32|0),A=t[r+268>>2],t[e+24>>2]=t[r+264>>2],t[e+28>>2]=A,A=t[r+260>>2],t[e+16>>2]=t[r+256>>2],t[e+20>>2]=A,A=t[r+276>>2],t[r+16>>2]=t[r+272>>2],t[r+20>>2]=A,A=t[r+284>>2],t[r+24>>2]=t[r+280>>2],t[r+28>>2]=A,A=t[e+4>>2],t[r>>2]=t[e>>2],t[r+4>>2]=A,A=t[e+12>>2],t[r+8>>2]=t[e+8>>2],t[r+12>>2]=A,H0(i,r+16|0,r),i=t[r+268>>2],t[e+8>>2]=t[r+264>>2],t[e+12>>2]=i,i=t[r+260>>2],t[e>>2]=t[r+256>>2],t[e+4>>2]=i,t[e+12>>2]=t[e+12>>2]^h,t[e+8>>2]=t[e+8>>2]^s,t[e+4>>2]=t[e+4>>2]^_,t[e>>2]=t[e>>2]^I,t[n>>2]=t[n>>2]^a,t[e+68>>2]=t[e+68>>2]^v,t[e+72>>2]=t[e+72>>2]^q,t[e+76>>2]=M^t[e+76>>2],X=r+288|0}function kn(i,n){var e=0,r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0;v=X-48|0,X=v,e=C6(i);e:{if(e||(e=-26,n-3>>>0<4294967294))break e;A=t[i+44>>2],e=t[i+48>>2],t[v+4>>2]=0,r=t[i+40>>2],t[v+32>>2]=e,t[v+16>>2]=-1,t[v+12>>2]=r,r=e<<3,a=r>>>0<A>>>0?A:r,A=e<<2,e=(a>>>0)/(A>>>0)|0,t[v+24>>2]=e,t[v+28>>2]=e<<2,t[v+20>>2]=i2(e,A),e=t[i+52>>2],t[v+40>>2]=n,t[v+36>>2]=e,n=X,B=n,e=n-1152&-64,X=e,A=v+4|0,n=-25;r:{t:{if(!A|!i||(r=U1(t[A+20>>2]<<3),t[A+4>>2]=r,n=-22,!r))break t;n:{n=t[A+16>>2];A:{if(!n||(r=n<<10,((r>>>0)/(n>>>0)|0)!=1024)||(n=U1(12),t[A>>2]=n,!n))break A;t[n>>2]=0,t[n+4>>2]=0,n=h4(e+128|0,r),t[10172]=n;i:{if(n){t[e+128>>2]=0;break i}if(n=t[e+128>>2],n)break n}l1(t[A>>2]),t[A>>2]=0}D4(A,t[i+56>>2]),X=B,n=-22;break r}t[t[A>>2]>>2]=n,t[t[A>>2]+4>>2]=n,t[t[A>>2]+8>>2]=r,g=t[A+36>>2],n=e+128|0,oe(n,0,0,64),t[e+124>>2]=t[i+48>>2],r=e+124|0,G2(n,r,4,0),t[e+124>>2]=t[i+4>>2],G2(n,r,4,0),t[e+124>>2]=t[i+44>>2],G2(n,r,4,0),t[e+124>>2]=t[i+40>>2],G2(n,r,4,0),t[e+124>>2]=19,G2(n,r,4,0),t[e+124>>2]=g,G2(n,r,4,0),t[e+124>>2]=t[i+12>>2],G2(n,r,4,0),r=t[i+8>>2];n:{if(!r||(G2(n,r,t[i+12>>2],0),!(f[i+56|0]&1)))break n;N0(t[i+8>>2],t[i+12>>2]),t[i+12>>2]=0}t[e+124>>2]=t[i+20>>2],n=e+128|0,G2(n,e+124|0,4,0),r=t[i+16>>2],r&&G2(n,r,t[i+20>>2],0),t[e+124>>2]=t[i+28>>2],n=e+128|0,G2(n,e+124|0,4,0),r=t[i+24>>2];n:{if(!r||(G2(n,r,t[i+28>>2],0),!(o[i+56|0]&2)))break n;N0(t[i+24>>2],t[i+28>>2]),t[i+28>>2]=0}if(t[e+124>>2]=t[i+36>>2],n=e+128|0,G2(n,e+124|0,4,0),r=t[i+32>>2],r&&G2(n,r,t[i+36>>2],0),he(e+128|0,e+48|0,64),N0(e+112|0,8),t[A+28>>2])for(r=0;;){for(t[e+112>>2]=0,t[e+116>>2]=r,g6(e+128|0,1024,e+48|0,72),g=t[t[A>>2]+4>>2]+(i2(t[A+24>>2],r)<<10)|0,n=0;h=n<<3,_=h+g|0,a=e+128|0,u=a+h|0,s=t[u+4>>2],t[_>>2]=t[u>>2],t[_+4>>2]=s,_=h|8,u=_+g|0,_=_+a|0,s=t[_+4>>2],t[u>>2]=t[_>>2],t[u+4>>2]=s,_=h|16,u=_+g|0,_=_+a|0,s=t[_+4>>2],t[u>>2]=t[_>>2],t[u+4>>2]=s,h=h|24,_=h+g|0,h=h+a|0,u=t[h+4>>2],t[_>>2]=t[h>>2],t[_+4>>2]=u,n=n+4|0,(n|0)!=128;);for(t[e+112>>2]=1,g6(a,1024,e+48|0,72),g=(t[t[A>>2]+4>>2]+(i2(t[A+24>>2],r)<<10)|0)+1024|0,n=0;h=n<<3,_=h+g|0,a=e+128|0,u=a+h|0,s=t[u+4>>2],t[_>>2]=t[u>>2],t[_+4>>2]=s,_=h|8,u=_+g|0,_=_+a|0,s=t[_+4>>2],t[u>>2]=t[_>>2],t[u+4>>2]=s,_=h|16,u=_+g|0,_=_+a|0,s=t[_+4>>2],t[u>>2]=t[_>>2],t[u+4>>2]=s,h=h|24,_=h+g|0,h=h+a|0,a=t[h+4>>2],t[_>>2]=t[h>>2],t[_+4>>2]=a,n=n+4|0,(n|0)!=128;);if(r=r+1|0,!(r>>>0<R1[A+28>>2]))break}N0(e+128|0,1024),N0(e+48|0,72),n=0}X=B}if(e=n,n)break e;if(t[v+12>>2])for(;;){n=X-80|0,X=n,A=v+4|0;r:{if(!A|!t[A+28>>2])break r;for(f[n+72|0]=0,t[n+64>>2]=q,e=0;t[n+76>>2]=0,t[n+68>>2]=e,r=t[n+68>>2],t[n+48>>2]=t[n+64>>2],t[n+52>>2]=r,r=t[n+76>>2],t[n+56>>2]=t[n+72>>2],t[n+60>>2]=r,pn(A,n+48|0),e=e+1|0,r=t[A+28>>2],e>>>0<r>>>0;);if(f[n+72|0]=1,!r)break r;for(e=0;t[n+76>>2]=0,t[n+68>>2]=e,r=t[n+68>>2],t[n+32>>2]=t[n+64>>2],t[n+36>>2]=r,r=t[n+76>>2],t[n+40>>2]=t[n+72>>2],t[n+44>>2]=r,pn(A,n+32|0),e=e+1|0,r=t[A+28>>2],e>>>0<r>>>0;);if(f[n+72|0]=2,!r)break r;for(e=0;t[n+76>>2]=0,t[n+68>>2]=e,r=t[n+68>>2],t[n+16>>2]=t[n+64>>2],t[n+20>>2]=r,r=t[n+76>>2],t[n+24>>2]=t[n+72>>2],t[n+28>>2]=r,pn(A,n+16|0),e=e+1|0,r=t[A+28>>2],e>>>0<r>>>0;);if(f[n+72|0]=3,!r)break r;for(e=0;t[n+76>>2]=0,t[n+68>>2]=e,r=t[n+68>>2],t[n>>2]=t[n+64>>2],t[n+4>>2]=r,r=t[n+76>>2],t[n+8>>2]=t[n+72>>2],t[n+12>>2]=r,pn(A,n),e=e+1|0,e>>>0<R1[A+28>>2];);}if(X=n+80|0,q=q+1|0,!(q>>>0<R1[v+12>>2]))break}if(n=X-2048|0,X=n,e=v+4|0,!(!i|!e)){if(q=t[e+24>>2],_=t[t[e>>2]+4>>2]+(q<<10)|0,_2(n+1024|0,_-1024|0,1024),u=t[e+28>>2],u>>>0>=2)for(g=1;;){for(A=(_+(i2(g,q)<<10)|0)-1024|0,h=0;r=h<<3,a=n+1024|0,B=r+a|0,s=t[B>>2],w=r+A|0,S=t[w>>2],w=t[B+4>>2]^t[w+4>>2],t[B>>2]=s^S,t[B+4>>2]=w,s=r|8,B=s+a|0,w=t[B>>2],s=A+s|0,S=t[s>>2],s=t[B+4>>2]^t[s+4>>2],t[B>>2]=w^S,t[B+4>>2]=s,s=r|16,B=s+a|0,w=t[B>>2],s=A+s|0,S=t[s>>2],s=t[B+4>>2]^t[s+4>>2],t[B>>2]=w^S,t[B+4>>2]=s,B=a,a=r|24,r=B+a|0,B=t[r>>2],a=A+a|0,s=t[a>>2],a=t[r+4>>2]^t[a+4>>2],t[r>>2]=s^B,t[r+4>>2]=a,h=h+4|0,(h|0)!=128;);if(g=g+1|0,(u|0)==(g|0))break}A=n+1024|0,_2(n,A,1024),g6(t[i>>2],t[i+4>>2],n,1024),N0(A,1024),N0(n,1024),D4(e,t[i+56>>2])}X=n+2048|0,e=0}return X=v+48|0,e}function Hi(i,n,e){var r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0;for(r=X-288|0,X=r,B=o[n+4|0]|o[n+5|0]<<8|(o[n+6|0]<<16|o[n+7|0]<<24),v=o[n+8|0]|o[n+9|0]<<8|(o[n+10|0]<<16|o[n+11|0]<<24),g=o[n+12|0]|o[n+13|0]<<8|(o[n+14|0]<<16|o[n+15|0]<<24),s=o[i+4|0]|o[i+5|0]<<8|(o[i+6|0]<<16|o[i+7|0]<<24),h=o[i+8|0]|o[i+9|0]<<8|(o[i+10|0]<<16|o[i+11|0]<<24),a=o[i+12|0]|o[i+13|0]<<8|(o[i+14|0]<<16|o[i+15|0]<<24),w=o[n|0]|o[n+1|0]<<8|(o[n+2|0]<<16|o[n+3|0]<<24),u=o[i|0]|o[i+1|0]<<8|(o[i+2|0]<<16|o[i+3|0]<<24),i=u^33620224,t[e+112>>2]=i,t[e+96>>2]=u^1427652059,t[e+80>>2]=i,i=e- -64|0,n=u^w,t[i>>2]=n,t[e+56>>2]=1110511904,t[e+60>>2]=-584534669,t[e+48>>2]=1427652059,t[e+52>>2]=-248528275,t[e+40>>2]=1496785429,t[e+44>>2]=1652156816,t[e+32>>2]=33620224,t[e+36>>2]=218629379,t[e+24>>2]=1110511904,t[e+28>>2]=-584534669,t[e+16>>2]=1427652059,t[e+20>>2]=-248528275,t[e>>2]=n,n=a^1652156816,t[e+124>>2]=n,_=h^1496785429,t[e+120>>2]=_,A=s^218629379,t[e+116>>2]=A,t[e+108>>2]=a^-584534669,t[e+104>>2]=h^1110511904,t[e+100>>2]=s^-248528275,t[e+92>>2]=n,t[e+88>>2]=_,t[e+84>>2]=A,n=a^g,t[e+76>>2]=n,_=h^v,t[e+72>>2]=_,A=s^B,t[e+68>>2]=A,t[e+12>>2]=n,t[e+8>>2]=_,t[e+4>>2]=A,_=0;n=t[e+124>>2],t[r+280>>2]=t[e+120>>2],t[r+284>>2]=n,n=t[e+116>>2],t[r+272>>2]=t[e+112>>2],t[r+276>>2]=n,n=t[e+100>>2],t[r+240>>2]=t[e+96>>2],t[r+244>>2]=n,n=t[e+108>>2],t[r+248>>2]=t[e+104>>2],t[r+252>>2]=n,n=t[e+116>>2],t[r+224>>2]=t[e+112>>2],t[r+228>>2]=n,n=t[e+124>>2],t[r+232>>2]=t[e+120>>2],t[r+236>>2]=n,n=r+256|0,H0(n,r+240|0,r+224|0),A=t[r+268>>2],t[e+120>>2]=t[r+264>>2],t[e+124>>2]=A,A=t[r+260>>2],t[e+112>>2]=t[r+256>>2],t[e+116>>2]=A,A=t[e+84>>2],t[r+208>>2]=t[e+80>>2],t[r+212>>2]=A,A=t[e+92>>2],t[r+216>>2]=t[e+88>>2],t[r+220>>2]=A,A=t[e+100>>2],t[r+192>>2]=t[e+96>>2],t[r+196>>2]=A,A=t[e+108>>2],t[r+200>>2]=t[e+104>>2],t[r+204>>2]=A,H0(n,r+208|0,r+192|0),A=t[r+268>>2],t[e+104>>2]=t[r+264>>2],t[e+108>>2]=A,A=t[r+260>>2],t[e+96>>2]=t[r+256>>2],t[e+100>>2]=A,A=t[i+4>>2],t[r+176>>2]=t[i>>2],t[r+180>>2]=A,A=t[i+12>>2],t[r+184>>2]=t[i+8>>2],t[r+188>>2]=A,A=t[e+84>>2],t[r+160>>2]=t[e+80>>2],t[r+164>>2]=A,A=t[e+92>>2],t[r+168>>2]=t[e+88>>2],t[r+172>>2]=A,H0(n,r+176|0,r+160|0),A=t[r+268>>2],t[e+88>>2]=t[r+264>>2],t[e+92>>2]=A,A=t[r+260>>2],t[e+80>>2]=t[r+256>>2],t[e+84>>2]=A,A=t[e+52>>2],t[r+144>>2]=t[e+48>>2],t[r+148>>2]=A,A=t[e+60>>2],t[r+152>>2]=t[e+56>>2],t[r+156>>2]=A,A=t[i+4>>2],t[r+128>>2]=t[i>>2],t[r+132>>2]=A,A=t[i+12>>2],t[r+136>>2]=t[i+8>>2],t[r+140>>2]=A,H0(n,r+144|0,r+128|0),A=t[r+268>>2],t[i+8>>2]=t[r+264>>2],t[i+12>>2]=A,A=t[r+260>>2],t[i>>2]=t[r+256>>2],t[i+4>>2]=A,A=t[e+36>>2],t[r+112>>2]=t[e+32>>2],t[r+116>>2]=A,A=t[e+44>>2],t[r+120>>2]=t[e+40>>2],t[r+124>>2]=A,A=t[e+52>>2],t[r+96>>2]=t[e+48>>2],t[r+100>>2]=A,A=t[e+60>>2],t[r+104>>2]=t[e+56>>2],t[r+108>>2]=A,H0(n,r+112|0,r+96|0),A=t[r+268>>2],t[e+56>>2]=t[r+264>>2],t[e+60>>2]=A,A=t[r+260>>2],t[e+48>>2]=t[r+256>>2],t[e+52>>2]=A,A=t[e+20>>2],t[r+80>>2]=t[e+16>>2],t[r+84>>2]=A,A=t[e+28>>2],t[r+88>>2]=t[e+24>>2],t[r+92>>2]=A,A=t[e+36>>2],t[r+64>>2]=t[e+32>>2],t[r+68>>2]=A,A=t[e+44>>2],t[r+72>>2]=t[e+40>>2],t[r+76>>2]=A,H0(n,r+80|0,r- -64|0),A=t[r+268>>2],t[e+40>>2]=t[r+264>>2],t[e+44>>2]=A,A=t[r+260>>2],t[e+32>>2]=t[r+256>>2],t[e+36>>2]=A,A=t[e+4>>2],t[r+48>>2]=t[e>>2],t[r+52>>2]=A,A=t[e+12>>2],t[r+56>>2]=t[e+8>>2],t[r+60>>2]=A,A=t[e+20>>2],t[r+32>>2]=t[e+16>>2],t[r+36>>2]=A,A=t[e+28>>2],t[r+40>>2]=t[e+24>>2],t[r+44>>2]=A,H0(n,r+48|0,r+32|0),A=t[r+268>>2],t[e+24>>2]=t[r+264>>2],t[e+28>>2]=A,A=t[r+260>>2],t[e+16>>2]=t[r+256>>2],t[e+20>>2]=A,A=t[r+276>>2],t[r+16>>2]=t[r+272>>2],t[r+20>>2]=A,A=t[r+284>>2],t[r+24>>2]=t[r+280>>2],t[r+28>>2]=A,A=t[e+4>>2],t[r>>2]=t[e>>2],t[r+4>>2]=A,A=t[e+12>>2],t[r+8>>2]=t[e+8>>2],t[r+12>>2]=A,H0(n,r+16|0,r),n=t[r+268>>2],t[e+8>>2]=t[r+264>>2],t[e+12>>2]=n,n=t[r+260>>2],t[e>>2]=t[r+256>>2],t[e+4>>2]=n,t[e+12>>2]=t[e+12>>2]^g,t[e+8>>2]=t[e+8>>2]^v,t[e+4>>2]=t[e+4>>2]^B,t[e>>2]=t[e>>2]^w,t[i>>2]=u^t[i>>2],t[e+68>>2]=t[e+68>>2]^s,t[e+72>>2]=t[e+72>>2]^h,t[e+76>>2]=t[e+76>>2]^a,_=_+1|0,(_|0)!=10;);X=r+288|0}function vn(i,n,e,r,A){var _=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0,z=0,$=0,V=0,W=0,e0=0,i0=0,o0=0,s0=0,h0=0,u0=0,y0=0,f0=0,B0=0,c0=0,j0=0,d0=0,w0=0,T0=0,P0=0,I0=0,M0=0,L0=0,E0=0,R0=0,F0=0,Q0=0,O0=0,X0=0,K0=0,z0=0;for(u=X+-64|0,o0=t[i+60>>2],s0=t[i+56>>2],$=t[i+52>>2],z=t[i+48>>2],h0=t[i+44>>2],u0=t[i+40>>2],y0=t[i+36>>2],f0=t[i+32>>2],B0=t[i+28>>2],c0=t[i+24>>2],j0=t[i+20>>2],d0=t[i+16>>2],w0=t[i+12>>2],T0=t[i+8>>2],P0=t[i+4>>2],I0=t[i>>2];;){e:{if(!A&r>>>0>63|A){_=e;break e}for(t[u+56>>2]=0,t[u+60>>2]=0,t[u+48>>2]=0,t[u+52>>2]=0,t[u+40>>2]=0,t[u+44>>2]=0,t[u+32>>2]=0,t[u+36>>2]=0,t[u+24>>2]=0,t[u+28>>2]=0,t[u+16>>2]=0,t[u+20>>2]=0,t[u+8>>2]=0,t[u+12>>2]=0,t[u>>2]=0,t[u+4>>2]=0,h=0;f[h+u|0]=o[n+h|0],h=h+1|0,!!(!A&r>>>0>h>>>0|A););_=u,n=_,M0=e}for(V=20,s=I0,S=P0,I=T0,Y=w0,h=d0,e=j0,B=c0,v=B0,g=f0,Q=y0,D=u0,a=o0,G=s0,N=$,M=z,w=h0;q=h,h=s+h|0,s=t0(h^M,16),g=s+g|0,M=t0(q^g,12),q=M,K=h+M|0,M=t0(K^s,8),g=M+g|0,h=t0(q^g,7),s=v+Y|0,a=t0(s^a,16),w=a+w|0,v=t0(w^v,12),I=B+I|0,Y=t0(I^G,16),D=Y+D|0,B=t0(D^B,12),W=s+v|0,G=W+h|0,I=B+I|0,e0=t0(I^Y,8),s=t0(G^e0,16),S=e+S|0,Y=t0(S^N,16),Q=Y+Q|0,e=t0(Q^e,12),q=h,S=e+S|0,N=t0(S^Y,8),i0=N+Q|0,h=i0+s|0,q=t0(q^h,12),Y=q+G|0,G=t0(s^Y,8),Q=G+h|0,h=t0(Q^q,7),q=g,g=I,s=t0(a^W,8),a=s+w|0,I=t0(a^v,7),g=g+I|0,N=t0(g^N,16),v=q+N|0,w=t0(v^I,12),I=w+g|0,N=t0(N^I,8),g=v+N|0,v=t0(g^w,7),w=a,a=S,D=D+e0|0,S=t0(D^B,7),a=a+S|0,M=t0(a^M,16),B=w+M|0,w=a,a=t0(B^S,12),S=w+a|0,M=t0(M^S,8),w=B+M|0,B=t0(w^a,7),q=D,a=s,s=t0(e^i0,7),D=s+K|0,a=t0(a^D,16),e=q+a|0,K=t0(e^s,12),s=K+D|0,a=t0(a^s,8),D=e+a|0,e=t0(D^K,7),V=V-2|0,!!V;);if(V=o[n+4|0]|o[n+5|0]<<8|(o[n+6|0]<<16|o[n+7|0]<<24),K=o[n+8|0]|o[n+9|0]<<8|(o[n+10|0]<<16|o[n+11|0]<<24),W=o[n+12|0]|o[n+13|0]<<8|(o[n+14|0]<<16|o[n+15|0]<<24),e0=o[n+16|0]|o[n+17|0]<<8|(o[n+18|0]<<16|o[n+19|0]<<24),i0=o[n+20|0]|o[n+21|0]<<8|(o[n+22|0]<<16|o[n+23|0]<<24),q=o[n+24|0]|o[n+25|0]<<8|(o[n+26|0]<<16|o[n+27|0]<<24),L0=o[n+28|0]|o[n+29|0]<<8|(o[n+30|0]<<16|o[n+31|0]<<24),E0=o[n+32|0]|o[n+33|0]<<8|(o[n+34|0]<<16|o[n+35|0]<<24),R0=o[n+36|0]|o[n+37|0]<<8|(o[n+38|0]<<16|o[n+39|0]<<24),F0=o[n+40|0]|o[n+41|0]<<8|(o[n+42|0]<<16|o[n+43|0]<<24),Q0=o[n+44|0]|o[n+45|0]<<8|(o[n+46|0]<<16|o[n+47|0]<<24),O0=o[n+48|0]|o[n+49|0]<<8|(o[n+50|0]<<16|o[n+51|0]<<24),X0=o[n+52|0]|o[n+53|0]<<8|(o[n+54|0]<<16|o[n+55|0]<<24),K0=o[n+56|0]|o[n+57|0]<<8|(o[n+58|0]<<16|o[n+59|0]<<24),z0=o[n+60|0]|o[n+61|0]<<8|(o[n+62|0]<<16|o[n+63|0]<<24),s=s+I0^(o[n|0]|o[n+1|0]<<8|(o[n+2|0]<<16|o[n+3|0]<<24)),f[_|0]=s,f[_+1|0]=s>>>8,f[_+2|0]=s>>>16,f[_+3|0]=s>>>24,s=a+o0^z0,f[_+60|0]=s,f[_+61|0]=s>>>8,f[_+62|0]=s>>>16,f[_+63|0]=s>>>24,s=G+s0^K0,f[_+56|0]=s,f[_+57|0]=s>>>8,f[_+58|0]=s>>>16,f[_+59|0]=s>>>24,s=N+$^X0,f[_+52|0]=s,f[_+53|0]=s>>>8,f[_+54|0]=s>>>16,f[_+55|0]=s>>>24,s=M+z^O0,f[_+48|0]=s,f[_+49|0]=s>>>8,f[_+50|0]=s>>>16,f[_+51|0]=s>>>24,s=w+h0^Q0,f[_+44|0]=s,f[_+45|0]=s>>>8,f[_+46|0]=s>>>16,f[_+47|0]=s>>>24,s=D+u0^F0,f[_+40|0]=s,f[_+41|0]=s>>>8,f[_+42|0]=s>>>16,f[_+43|0]=s>>>24,s=Q+y0^R0,f[_+36|0]=s,f[_+37|0]=s>>>8,f[_+38|0]=s>>>16,f[_+39|0]=s>>>24,s=g+f0^E0,f[_+32|0]=s,f[_+33|0]=s>>>8,f[_+34|0]=s>>>16,f[_+35|0]=s>>>24,v=v+B0^L0,f[_+28|0]=v,f[_+29|0]=v>>>8,f[_+30|0]=v>>>16,f[_+31|0]=v>>>24,B=q^B+c0,f[_+24|0]=B,f[_+25|0]=B>>>8,f[_+26|0]=B>>>16,f[_+27|0]=B>>>24,e=i0^e+j0,f[_+20|0]=e,f[_+21|0]=e>>>8,f[_+22|0]=e>>>16,f[_+23|0]=e>>>24,e=e0^h+d0,f[_+16|0]=e,f[_+17|0]=e>>>8,f[_+18|0]=e>>>16,f[_+19|0]=e>>>24,e=W^Y+w0,f[_+12|0]=e,f[_+13|0]=e>>>8,f[_+14|0]=e>>>16,f[_+15|0]=e>>>24,e=K^I+T0,f[_+8|0]=e,f[_+9|0]=e>>>8,f[_+10|0]=e>>>16,f[_+11|0]=e>>>24,e=V^S+P0,f[_+4|0]=e,f[_+5|0]=e>>>8,f[_+6|0]=e>>>16,f[_+7|0]=e>>>24,z=z+1|0,$=!z+$|0,!A&r>>>0<=64){if(!A&r>>>0<=63)for(h=0;f[h+M0|0]=o[_+h|0],h=h+1|0,r>>>0>h>>>0;);t[i+52>>2]=$,t[i+48>>2]=z}else{n=n- -64|0,e=_- -64|0,A=A-1|0,r=r+-64|0,A=r>>>0<4294967232?A+1|0:A;continue}break}}function gt(i,n){var e=0,r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0,z=0,$=0,V=0,W=0,e0=0,i0=0,o0=0,s0=0,h0=0,u0=0,y0=0,f0=0,B0=0,c0=0,j0=0,d0=0,w0=0,T0=0,P0=0,I0=0,M0=0,L0=0;e=X-800|0,X=e,A=n+40|0,r=t[A>>2],_=t[n+80>>2],s=t[n+44>>2],h=t[n+84>>2],a=t[n+48>>2],w=t[n+88>>2],u=t[n+52>>2],I=t[n+92>>2],q=t[n+56>>2],D=t[n+96>>2],M=t[n+60>>2],Y=t[n+100>>2],B=n- -64|0,N=t[B>>2],Q=t[n+104>>2],G=t[n+68>>2],K=t[n+108>>2],z=t[n+72>>2],$=t[n+112>>2],v=t[n+76>>2],g=t[n+116>>2],t[e+324>>2]=v+g,t[e+320>>2]=z+$,t[e+316>>2]=G+K,t[e+312>>2]=N+Q,t[e+308>>2]=M+Y,t[e+304>>2]=q+D,t[e+300>>2]=u+I,t[e+296>>2]=a+w,t[e+292>>2]=s+h,t[e+288>>2]=r+_,t[e+36>>2]=g-v,t[e+32>>2]=$-z,t[e+28>>2]=K-G,t[e+24>>2]=Q-N,t[e+20>>2]=Y-M,t[e+16>>2]=D-q,t[e+12>>2]=I-u,t[e+8>>2]=w-a,t[e+4>>2]=h-s,t[e>>2]=_-r,r=e+288|0,A0(r,r,e),s=e+240|0,A0(s,n,A),_=e+192|0,U(_,s),A0(_,r,_),t[e+436>>2]=0,t[e+440>>2]=0,t[e+444>>2]=0,t[e+448>>2]=0,t[e+452>>2]=0,t[e+456>>2]=0,t[e+460>>2]=0,t[e+464>>2]=0,t[e+468>>2]=0,t[e+432>>2]=1,h=e+576|0,q6(h,e+432|0,_),_=e+720|0,A0(_,h,r),I=e+672|0,A0(I,h,s),u=e+48|0,A0(u,_,I),r=n+120|0,A0(u,u,r),A0(e+528|0,n,1632),A0(e+480|0,A,1632),A0(e+624|0,_,2944),_=e+336|0,A0(_,r,u),w=e+384|0,V2(w,_),e0=o[e+384|0],_=t[n+36>>2],r=t[n+32>>2],t[e+176>>2]=r,t[e+180>>2]=_,s=t[n+28>>2],_=t[n+24>>2],t[e+168>>2]=_,t[e+172>>2]=s,h=t[n+20>>2],s=t[n+16>>2],t[e+160>>2]=s,t[e+164>>2]=h,a=t[n+12>>2],h=t[n+8>>2],t[e+152>>2]=h,t[e+156>>2]=a,q=t[n+4>>2],a=t[n>>2],t[e+144>>2]=a,t[e+148>>2]=q,q=t[A>>2],D=t[n+44>>2],M=t[n+48>>2],Y=t[n+52>>2],N=t[n+56>>2],Q=t[n+60>>2],G=t[B>>2],K=t[n+68>>2],z=t[n+72>>2],$=t[n+76>>2],i0=t[e+484>>2],B=t[e+148>>2],o0=t[e+492>>2],v=t[e+156>>2],s0=t[e+500>>2],g=t[e+164>>2],h0=t[e+508>>2],S=t[e+172>>2],u0=t[e+516>>2],W=t[e+180>>2],y0=t[e+480>>2],f0=t[e+488>>2],B0=t[e+496>>2],V=t[e+504>>2],A=0-(e0&1)|0,t[e+176>>2]=r^A&(r^t[e+512>>2]),t[e+168>>2]=_^A&(_^V),t[e+160>>2]=s^A&(s^B0),t[e+152>>2]=h^A&(h^f0),t[e+144>>2]=a^A&(a^y0),t[e+180>>2]=W^A&(W^u0),t[e+172>>2]=S^A&(S^h0),t[e+164>>2]=g^A&(g^s0),t[e+156>>2]=v^A&(v^o0),t[e+148>>2]=B^A&(B^i0),W=t[e+528>>2],e0=t[e+532>>2],i0=t[e+536>>2],o0=t[e+540>>2],s0=t[e+544>>2],h0=t[e+548>>2],u0=t[e+552>>2],y0=t[e+556>>2],f0=t[e+560>>2],B0=t[e+564>>2],r=t[e+672>>2],V=t[e+624>>2],_=t[e+676>>2],j0=t[e+628>>2],s=t[e+680>>2],d0=t[e+632>>2],h=t[e+684>>2],w0=t[e+636>>2],a=t[e+688>>2],T0=t[e+640>>2],B=t[e+692>>2],P0=t[e+644>>2],v=t[e+696>>2],I0=t[e+648>>2],g=t[e+700>>2],M0=t[e+652>>2],S=t[e+704>>2],L0=t[e+656>>2],c0=t[e+708>>2],t[e+708>>2]=c0^A&(t[e+660>>2]^c0),t[e+704>>2]=S^A&(S^L0),t[e+700>>2]=g^A&(g^M0),t[e+696>>2]=v^A&(v^I0),t[e+692>>2]=B^A&(B^P0),t[e+688>>2]=a^A&(a^T0),t[e+684>>2]=h^A&(h^w0),t[e+680>>2]=s^A&(s^d0),t[e+676>>2]=_^A&(_^j0),t[e+672>>2]=r^A&(r^V),r=e+96|0,A0(r,e+144|0,u),V2(w,r),_=t[n+80>>2],s=t[n+84>>2],h=t[n+88>>2],a=t[n+92>>2],u=t[n+96>>2],B=t[n+100>>2],v=t[n+104>>2],g=t[n+108>>2],S=t[n+112>>2],V=t[n+116>>2],n=0-(f[e+384|0]&1)|0,r=$^A&($^B0),t[e+420>>2]=V-(n&(0-r^r)^r),r=z^A&(z^f0),t[e+416>>2]=S-(n&(0-r^r)^r),r=K^A&(K^y0),t[e+412>>2]=g-(n&(0-r^r)^r),r=G^A&(G^u0),t[e+408>>2]=v-(n&(0-r^r)^r),r=Q^A&(Q^h0),t[e+404>>2]=B-(n&(0-r^r)^r),r=N^A&(N^s0),t[e+400>>2]=u-(n&(0-r^r)^r),r=Y^A&(Y^o0),t[e+396>>2]=a-(n&(0-r^r)^r),r=M^A&(M^i0),t[e+392>>2]=h-(n&(0-r^r)^r),r=D^A&(D^e0),t[e+388>>2]=s-(n&(0-r^r)^r),r=n,n=q^A&(q^W),t[e+384>>2]=_-(r&(0-n^n)^n),A0(w,I,w),V2(e+768|0,w),n=0-(f[e+768|0]&1)|0,r=t[e+384>>2],t[e+384>>2]=n&(0-r^r)^r,r=t[e+388>>2],t[e+388>>2]=n&(0-r^r)^r,r=t[e+392>>2],t[e+392>>2]=n&(0-r^r)^r,r=t[e+396>>2],t[e+396>>2]=n&(0-r^r)^r,r=t[e+400>>2],t[e+400>>2]=n&(0-r^r)^r,r=t[e+404>>2],t[e+404>>2]=n&(0-r^r)^r,r=t[e+408>>2],t[e+408>>2]=n&(0-r^r)^r,r=t[e+412>>2],t[e+412>>2]=n&(0-r^r)^r,r=t[e+416>>2],t[e+416>>2]=n&(0-r^r)^r,r=n,n=t[e+420>>2],t[e+420>>2]=r&(0-n^n)^n,V2(i,w),X=e+800|0}function Ri(i,n,e,r,A){var _=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0;for(_=X-224|0,X=_,v=t[A+60>>2]^r>>>29,g=t[A+56>>2]^r<<3,h=t[A+52>>2]^e>>>29,u=t[A+48>>2]^e<<3,s=A- -64|0;e=t[A+92>>2],t[_+216>>2]=t[A+88>>2],t[_+220>>2]=e,e=t[A+84>>2],t[_+208>>2]=t[A+80>>2],t[_+212>>2]=e,e=t[s+4>>2],t[_+176>>2]=t[s>>2],t[_+180>>2]=e,e=t[s+12>>2],t[_+184>>2]=t[s+8>>2],t[_+188>>2]=e,e=t[A+84>>2],t[_+160>>2]=t[A+80>>2],t[_+164>>2]=e,e=t[A+92>>2],t[_+168>>2]=t[A+88>>2],t[_+172>>2]=e,r=_+192|0,H0(r,_+176|0,_+160|0),e=t[_+204>>2],t[A+88>>2]=t[_+200>>2],t[A+92>>2]=e,e=t[_+196>>2],t[A+80>>2]=t[_+192>>2],t[A+84>>2]=e,e=t[A+52>>2],t[_+144>>2]=t[A+48>>2],t[_+148>>2]=e,e=t[A+60>>2],t[_+152>>2]=t[A+56>>2],t[_+156>>2]=e,e=t[s+4>>2],t[_+128>>2]=t[s>>2],t[_+132>>2]=e,e=t[s+12>>2],t[_+136>>2]=t[s+8>>2],t[_+140>>2]=e,H0(r,_+144|0,_+128|0),e=t[_+204>>2],t[s+8>>2]=t[_+200>>2],t[s+12>>2]=e,e=t[_+196>>2],t[s>>2]=t[_+192>>2],t[s+4>>2]=e,e=t[A+36>>2],t[_+112>>2]=t[A+32>>2],t[_+116>>2]=e,e=t[A+44>>2],t[_+120>>2]=t[A+40>>2],t[_+124>>2]=e,e=t[A+52>>2],t[_+96>>2]=t[A+48>>2],t[_+100>>2]=e,e=t[A+60>>2],t[_+104>>2]=t[A+56>>2],t[_+108>>2]=e,H0(r,_+112|0,_+96|0),e=t[_+204>>2],t[A+56>>2]=t[_+200>>2],t[A+60>>2]=e,e=t[_+196>>2],t[A+48>>2]=t[_+192>>2],t[A+52>>2]=e,e=t[A+20>>2],t[_+80>>2]=t[A+16>>2],t[_+84>>2]=e,e=t[A+28>>2],t[_+88>>2]=t[A+24>>2],t[_+92>>2]=e,e=t[A+36>>2],t[_+64>>2]=t[A+32>>2],t[_+68>>2]=e,e=t[A+44>>2],t[_+72>>2]=t[A+40>>2],t[_+76>>2]=e,H0(r,_+80|0,_- -64|0),e=t[_+204>>2],t[A+40>>2]=t[_+200>>2],t[A+44>>2]=e,e=t[_+196>>2],t[A+32>>2]=t[_+192>>2],t[A+36>>2]=e,e=t[A+4>>2],t[_+48>>2]=t[A>>2],t[_+52>>2]=e,e=t[A+12>>2],t[_+56>>2]=t[A+8>>2],t[_+60>>2]=e,e=t[A+20>>2],t[_+32>>2]=t[A+16>>2],t[_+36>>2]=e,e=t[A+28>>2],t[_+40>>2]=t[A+24>>2],t[_+44>>2]=e,H0(r,_+48|0,_+32|0),e=t[_+204>>2],t[A+24>>2]=t[_+200>>2],t[A+28>>2]=e,e=t[_+196>>2],t[A+16>>2]=t[_+192>>2],t[A+20>>2]=e,e=t[_+212>>2],t[_+16>>2]=t[_+208>>2],t[_+20>>2]=e,e=t[_+220>>2],t[_+24>>2]=t[_+216>>2],t[_+28>>2]=e,e=t[A+4>>2],t[_>>2]=t[A>>2],t[_+4>>2]=e,e=t[A+12>>2],t[_+8>>2]=t[A+8>>2],t[_+12>>2]=e,H0(r,_+16|0,_),B=t[_+192>>2],r=t[_+196>>2],e=t[_+200>>2],w=v^t[_+204>>2],t[A+12>>2]=w,q=e^g,t[A+8>>2]=q,S=r^h,t[A+4>>2]=S,I=u^B,t[A>>2]=I,a=a+1|0,(a|0)!=7;);e:{r:{t:{if(e=n-16|0,e){if((e|0)==16)break t;break r}D=t[A+16>>2],M=t[A+48>>2],Y=t[A+32>>2],N=t[A+80>>2],Q=t[A- -64>>2],s=t[A+20>>2],v=t[A+52>>2],g=t[A+36>>2],h=t[A+84>>2],u=t[A+68>>2],B=t[A+24>>2],a=t[A+56>>2],r=t[A+40>>2],e=t[A+88>>2],n=t[A+72>>2],A=w^(t[A+28>>2]^(t[A+60>>2]^(t[A+44>>2]^(t[A+92>>2]^t[A+76>>2])))),f[i+12|0]=A,f[i+13|0]=A>>>8,f[i+14|0]=A>>>16,f[i+15|0]=A>>>24,n=q^(n^e^r^a^B),f[i+8|0]=n,f[i+9|0]=n>>>8,f[i+10|0]=n>>>16,f[i+11|0]=n>>>24,n=S^(s^(v^(h^u^g))),f[i+4|0]=n,f[i+5|0]=n>>>8,f[i+6|0]=n>>>16,f[i+7|0]=n>>>24,n=I^(D^(M^(Y^(N^Q)))),f[i|0]=n,f[i+1|0]=n>>>8,f[i+2|0]=n>>>16,f[i+3|0]=n>>>24;break e}u=t[A+32>>2],B=t[A+16>>2],a=t[A+36>>2],r=t[A+20>>2],e=t[A+40>>2],n=t[A+24>>2],h=w^(t[A+44>>2]^t[A+28>>2]),f[i+12|0]=h,f[i+13|0]=h>>>8,f[i+14|0]=h>>>16,f[i+15|0]=h>>>24,n=q^(n^e),f[i+8|0]=n,f[i+9|0]=n>>>8,f[i+10|0]=n>>>16,f[i+11|0]=n>>>24,n=S^(r^a),f[i+4|0]=n,f[i+5|0]=n>>>8,f[i+6|0]=n>>>16,f[i+7|0]=n>>>24,n=I^(u^B),f[i|0]=n,f[i+1|0]=n>>>8,f[i+2|0]=n>>>16,f[i+3|0]=n>>>24,v=t[A+48>>2],g=t[A+80>>2],h=t[A- -64>>2],u=t[A+52>>2],B=t[A+84>>2],a=t[A+68>>2],r=t[A+56>>2],e=t[A+88>>2],n=t[A+72>>2],A=t[A+60>>2]^(t[A+92>>2]^t[A+76>>2]),f[i+28|0]=A,f[i+29|0]=A>>>8,f[i+30|0]=A>>>16,f[i+31|0]=A>>>24,n=r^(n^e),f[i+24|0]=n,f[i+25|0]=n>>>8,f[i+26|0]=n>>>16,f[i+27|0]=n>>>24,n=u^(B^a),f[i+20|0]=n,f[i+21|0]=n>>>8,f[i+22|0]=n>>>16,f[i+23|0]=n>>>24,n=v^(h^g),f[i+16|0]=n,f[i+17|0]=n>>>8,f[i+18|0]=n>>>16,f[i+19|0]=n>>>24;break e}if(!n)break e;k2(i,0,n)}X=_+224|0}function G5(i,n,e,r,A,_){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0,_=_|0;var s=0,h=0,a=0,u=0,B=0,v=0,g=0;if(s=-1,h=r-65|0,!(h>>>0<4294967232|e>>>0>64)){e:{if(!(e&&n)){if((h&255)>>>0>191){r:{if(!A){a=725511199,h=-1694144372,e=-1377402159,n=1359893119;break r}a=(o[A+8|0]|o[A+9|0]<<8|(o[A+10|0]<<16|o[A+11|0]<<24))^725511199,h=(o[A+12|0]|o[A+13|0]<<8|(o[A+14|0]<<16|o[A+15|0]<<24))^-1694144372,e=(o[A|0]|o[A+1|0]<<8|(o[A+2|0]<<16|o[A+3|0]<<24))^-1377402159,n=(o[A+4|0]|o[A+5|0]<<8|(o[A+6|0]<<16|o[A+7|0]<<24))^1359893119}r:{if(!_){u=327033209,_=1541459225,s=-79577749,A=528734635;break r}A=_,u=(o[A+8|0]|o[A+9|0]<<8|(o[A+10|0]<<16|o[A+11|0]<<24))^327033209,_=(o[A+12|0]|o[A+13|0]<<8|(o[A+14|0]<<16|o[A+15|0]<<24))^1541459225,s=(o[A|0]|o[A+1|0]<<8|(o[A+2|0]<<16|o[A+3|0]<<24))^-79577749,A=(o[A+4|0]|o[A+5|0]<<8|(o[A+6|0]<<16|o[A+7|0]<<24))^528734635}k2(i- -64|0,0,293),f[i+56|0]=u,f[i+57|0]=u>>>8,f[i+58|0]=u>>>16,f[i+59|0]=u>>>24,f[i+60|0]=_,f[i+61|0]=_>>>8,f[i+62|0]=_>>>16,f[i+63|0]=_>>>24,f[i+48|0]=s,f[i+49|0]=s>>>8,f[i+50|0]=s>>>16,f[i+51|0]=s>>>24,f[i+52|0]=A,f[i+53|0]=A>>>8,f[i+54|0]=A>>>16,f[i+55|0]=A>>>24,f[i+40|0]=a,f[i+41|0]=a>>>8,f[i+42|0]=a>>>16,f[i+43|0]=a>>>24,f[i+44|0]=h,f[i+45|0]=h>>>8,f[i+46|0]=h>>>16,f[i+47|0]=h>>>24,f[i+32|0]=e,f[i+33|0]=e>>>8,f[i+34|0]=e>>>16,f[i+35|0]=e>>>24,f[i+36|0]=n,f[i+37|0]=n>>>8,f[i+38|0]=n>>>16,f[i+39|0]=n>>>24,f[i+24|0]=241,f[i+25|0]=54,f[i+26|0]=29,f[i+27|0]=95,f[i+28|0]=58,f[i+29|0]=245,f[i+30|0]=79,f[i+31|0]=165,f[i+16|0]=43,f[i+17|0]=248,f[i+18|0]=148,f[i+19|0]=254,f[i+20|0]=114,f[i+21|0]=243,f[i+22|0]=110,f[i+23|0]=60,f[i+8|0]=59,f[i+9|0]=167,f[i+10|0]=202,f[i+11|0]=132,f[i+12|0]=133,f[i+13|0]=174,f[i+14|0]=103,f[i+15|0]=187,n=r^-222443256,f[i|0]=n,f[i+1|0]=n>>>8,f[i+2|0]=n>>>16,f[i+3|0]=n>>>24,f[i+4|0]=103,f[i+5|0]=230,f[i+6|0]=9,f[i+7|0]=106;break e}Q2(),C2()}B=X-128|0,X=B;r:{if(!(!n|(r-65&255)>>>0<=191|(e-65&255)>>>0<=191)){t:{if(!A){a=725511199,h=-1694144372,s=-1377402159,A=1359893119;break t}a=(o[A+8|0]|o[A+9|0]<<8|(o[A+10|0]<<16|o[A+11|0]<<24))^725511199,h=(o[A+12|0]|o[A+13|0]<<8|(o[A+14|0]<<16|o[A+15|0]<<24))^-1694144372,s=(o[A|0]|o[A+1|0]<<8|(o[A+2|0]<<16|o[A+3|0]<<24))^-1377402159,A=(o[A+4|0]|o[A+5|0]<<8|(o[A+6|0]<<16|o[A+7|0]<<24))^1359893119}g=s;t:{if(!_){u=327033209,_=1541459225,v=-79577749,s=528734635;break t}s=_,u=(o[s+8|0]|o[s+9|0]<<8|(o[s+10|0]<<16|o[s+11|0]<<24))^327033209,_=(o[s+12|0]|o[s+13|0]<<8|(o[s+14|0]<<16|o[s+15|0]<<24))^1541459225,v=(o[s|0]|o[s+1|0]<<8|(o[s+2|0]<<16|o[s+3|0]<<24))^-79577749,s=(o[s+4|0]|o[s+5|0]<<8|(o[s+6|0]<<16|o[s+7|0]<<24))^528734635}k2(i- -64|0,0,293),f[i+56|0]=u,f[i+57|0]=u>>>8,f[i+58|0]=u>>>16,f[i+59|0]=u>>>24,f[i+60|0]=_,f[i+61|0]=_>>>8,f[i+62|0]=_>>>16,f[i+63|0]=_>>>24,f[i+48|0]=v,f[i+49|0]=v>>>8,f[i+50|0]=v>>>16,f[i+51|0]=v>>>24,f[i+52|0]=s,f[i+53|0]=s>>>8,f[i+54|0]=s>>>16,f[i+55|0]=s>>>24,f[i+40|0]=a,f[i+41|0]=a>>>8,f[i+42|0]=a>>>16,f[i+43|0]=a>>>24,f[i+44|0]=h,f[i+45|0]=h>>>8,f[i+46|0]=h>>>16,f[i+47|0]=h>>>24,f[i+32|0]=g,f[i+33|0]=g>>>8,f[i+34|0]=g>>>16,f[i+35|0]=g>>>24,f[i+36|0]=A,f[i+37|0]=A>>>8,f[i+38|0]=A>>>16,f[i+39|0]=A>>>24,f[i+24|0]=241,f[i+25|0]=54,f[i+26|0]=29,f[i+27|0]=95,f[i+28|0]=58,f[i+29|0]=245,f[i+30|0]=79,f[i+31|0]=165,f[i+16|0]=43,f[i+17|0]=248,f[i+18|0]=148,f[i+19|0]=254,f[i+20|0]=114,f[i+21|0]=243,f[i+22|0]=110,f[i+23|0]=60,f[i+8|0]=59,f[i+9|0]=167,f[i+10|0]=202,f[i+11|0]=132,f[i+12|0]=133,f[i+13|0]=174,f[i+14|0]=103,f[i+15|0]=187,A=(e<<8|r)^-222443256,f[i|0]=A,f[i+1|0]=A>>>8,f[i+2|0]=A>>>16,f[i+3|0]=A>>>24,r=e>>>24^1779033703,f[i+4|0]=r,f[i+5|0]=r>>>8,f[i+6|0]=r>>>16,f[i+7|0]=r>>>24,k2(B,0,128),e&&_2(B,n,e),_2(i+96|0,B,128),f[i+352|0]=128,f[i+353|0]=0,f[i+354|0]=0,f[i+355|0]=0,N0(B,128),X=B+128|0;break r}Q2(),C2()}}s=0}return s|0}function N1(i,n){i=i|0,n=n|0;var e=0,r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0;u=X-704|0,X=u,s=i+80|0,A=t[i+72>>2]>>>3&127,e=s+A|0;e:{if(A>>>0>=112){A=128-A|0,A&&_2(e,39152,A),Bn(i,s,u,u+640|0),k2(s,0,112);break e}if(A=112-A|0,!A)break e;_2(e,39152,A)}return A=i- -64|0,r=t[A>>2],e=t[A+4>>2],a=r<<24|(r&65280)<<8,_=r&16711680,A=_>>>8|0,B=_<<24,h=r&-16777216,_=h>>>24|0,t[i+192>>2]=B|h<<8|(((e&255)<<24|r>>>8)&-16777216|((e&16777215)<<8|r>>>24)&16711680|(e>>>8&65280|e>>>24)),e=A|_|a,t[i+196>>2]=e,r=t[i+72>>2],a=r<<24|(r&65280)<<8,_=r&16711680,A=_>>>8|0,e=t[i+76>>2],B=_<<24,h=r&-16777216,_=h>>>24|0,t[i+200>>2]=B|h<<8|(((e&255)<<24|r>>>8)&-16777216|((e&16777215)<<8|r>>>24)&16711680|(e>>>8&65280|e>>>24)),e=A|_|a,t[i+204>>2]=e,Bn(i,s,u,u+640|0),r=t[i>>2],h=r<<24|(r&65280)<<8,_=r&16711680,A=_>>>8|0,e=t[i+4>>2],a=_<<24,s=r&-16777216,_=s>>>24|0,e=a|s<<8|(((e&255)<<24|r>>>8)&-16777216|((e&16777215)<<8|r>>>24)&16711680|(e>>>8&65280|e>>>24)),f[n|0]=e,f[n+1|0]=e>>>8,f[n+2|0]=e>>>16,f[n+3|0]=e>>>24,e=A|_|h,A=e|0,f[n+4|0]=A,f[n+5|0]=A>>>8,f[n+6|0]=A>>>16,f[n+7|0]=A>>>24,r=t[i+8>>2],h=r<<24|(r&65280)<<8,_=r&16711680,A=_>>>8|0,e=t[i+12>>2],a=_<<24,s=r&-16777216,_=s>>>24|0,e=a|s<<8|(((e&255)<<24|r>>>8)&-16777216|((e&16777215)<<8|r>>>24)&16711680|(e>>>8&65280|e>>>24)),f[n+8|0]=e,f[n+9|0]=e>>>8,f[n+10|0]=e>>>16,f[n+11|0]=e>>>24,e=A|_|h,A=e|0,f[n+12|0]=A,f[n+13|0]=A>>>8,f[n+14|0]=A>>>16,f[n+15|0]=A>>>24,r=t[i+16>>2],h=r<<24|(r&65280)<<8,_=r&16711680,A=_>>>8|0,e=t[i+20>>2],a=_<<24,s=r&-16777216,_=s>>>24|0,e=a|s<<8|(((e&255)<<24|r>>>8)&-16777216|((e&16777215)<<8|r>>>24)&16711680|(e>>>8&65280|e>>>24)),f[n+16|0]=e,f[n+17|0]=e>>>8,f[n+18|0]=e>>>16,f[n+19|0]=e>>>24,e=A|_|h,A=e|0,f[n+20|0]=A,f[n+21|0]=A>>>8,f[n+22|0]=A>>>16,f[n+23|0]=A>>>24,r=t[i+24>>2],h=r<<24|(r&65280)<<8,_=r&16711680,A=_>>>8|0,e=t[i+28>>2],a=_<<24,s=r&-16777216,_=s>>>24|0,e=a|s<<8|(((e&255)<<24|r>>>8)&-16777216|((e&16777215)<<8|r>>>24)&16711680|(e>>>8&65280|e>>>24)),f[n+24|0]=e,f[n+25|0]=e>>>8,f[n+26|0]=e>>>16,f[n+27|0]=e>>>24,e=A|_|h,A=e|0,f[n+28|0]=A,f[n+29|0]=A>>>8,f[n+30|0]=A>>>16,f[n+31|0]=A>>>24,r=t[i+32>>2],h=r<<24|(r&65280)<<8,_=r&16711680,A=_>>>8|0,e=t[i+36>>2],a=_<<24,s=r&-16777216,_=s>>>24|0,e=a|s<<8|(((e&255)<<24|r>>>8)&-16777216|((e&16777215)<<8|r>>>24)&16711680|(e>>>8&65280|e>>>24)),f[n+32|0]=e,f[n+33|0]=e>>>8,f[n+34|0]=e>>>16,f[n+35|0]=e>>>24,e=A|_|h,A=e|0,f[n+36|0]=A,f[n+37|0]=A>>>8,f[n+38|0]=A>>>16,f[n+39|0]=A>>>24,r=t[i+40>>2],h=r<<24|(r&65280)<<8,_=r&16711680,A=_>>>8|0,e=t[i+44>>2],a=_<<24,s=r&-16777216,_=s>>>24|0,e=a|s<<8|(((e&255)<<24|r>>>8)&-16777216|((e&16777215)<<8|r>>>24)&16711680|(e>>>8&65280|e>>>24)),f[n+40|0]=e,f[n+41|0]=e>>>8,f[n+42|0]=e>>>16,f[n+43|0]=e>>>24,e=A|_|h,A=e|0,f[n+44|0]=A,f[n+45|0]=A>>>8,f[n+46|0]=A>>>16,f[n+47|0]=A>>>24,r=t[i+48>>2],h=r<<24|(r&65280)<<8,_=r&16711680,A=_>>>8|0,e=t[i+52>>2],a=_<<24,s=r&-16777216,_=s>>>24|0,e=a|s<<8|(((e&255)<<24|r>>>8)&-16777216|((e&16777215)<<8|r>>>24)&16711680|(e>>>8&65280|e>>>24)),f[n+48|0]=e,f[n+49|0]=e>>>8,f[n+50|0]=e>>>16,f[n+51|0]=e>>>24,e=A|_|h,A=e|0,f[n+52|0]=A,f[n+53|0]=A>>>8,f[n+54|0]=A>>>16,f[n+55|0]=A>>>24,r=t[i+56>>2],h=r<<24|(r&65280)<<8,_=r&16711680,A=_>>>8|0,e=n,a=_<<24,s=r&-16777216,_=s>>>24|0,n=t[i+60>>2],n=a|s<<8|(((n&255)<<24|r>>>8)&-16777216|((n&16777215)<<8|r>>>24)&16711680|(n>>>8&65280|n>>>24)),f[e+56|0]=n,f[e+57|0]=n>>>8,f[e+58|0]=n>>>16,f[e+59|0]=n>>>24,n=A|_|h,n=n|0,f[e+60|0]=n,f[e+61|0]=n>>>8,f[e+62|0]=n>>>16,f[e+63|0]=n>>>24,N0(u,704),N0(i,208),X=u+704|0,0}function k6(i){var n=0,e=0,r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0;for(n=X-2048|0,X=n,a=n+640|0,J2(a,i),e=t[i+36>>2],t[n+352>>2]=t[i+32>>2],t[n+356>>2]=e,e=t[i+28>>2],t[n+344>>2]=t[i+24>>2],t[n+348>>2]=e,e=t[i+20>>2],t[n+336>>2]=t[i+16>>2],t[n+340>>2]=e,e=t[i+12>>2],t[n+328>>2]=t[i+8>>2],t[n+332>>2]=e,e=t[i+4>>2],t[n+320>>2]=t[i>>2],t[n+324>>2]=e,e=t[i+44>>2],t[n+360>>2]=t[i+40>>2],t[n+364>>2]=e,e=t[i+52>>2],t[n+368>>2]=t[i+48>>2],t[n+372>>2]=e,e=t[i+60>>2],t[n+376>>2]=t[i+56>>2],t[n+380>>2]=e,r=i- -64|0,e=t[r+4>>2],t[n+384>>2]=t[r>>2],t[n+388>>2]=e,e=t[i+76>>2],t[n+392>>2]=t[i+72>>2],t[n+396>>2]=e,e=t[i+84>>2],t[n+400>>2]=t[i+80>>2],t[n+404>>2]=e,e=t[i+92>>2],t[n+408>>2]=t[i+88>>2],t[n+412>>2]=e,e=t[i+100>>2],t[n+416>>2]=t[i+96>>2],t[n+420>>2]=e,e=t[i+108>>2],t[n+424>>2]=t[i+104>>2],t[n+428>>2]=e,e=t[i+116>>2],t[n+432>>2]=t[i+112>>2],t[n+436>>2]=e,A=n+480|0,r=n+320|0,v1(A,r),e=n+160|0,_=n+600|0,A0(e,A,_),s=n+520|0,h=n+560|0,A0(n+200|0,s,h),A0(n+240|0,h,_),A0(n+280|0,A,s),A1(A,e,a),A0(r,A,_),v=n+360|0,A0(v,s,h),g=n+400|0,A0(g,h,_),w=n+440|0,A0(w,A,s),i=n+800|0,J2(i,r),A1(A,e,i),A0(r,A,_),A0(v,s,h),A0(g,h,_),A0(w,A,s),i=n+960|0,J2(i,r),A1(A,e,i),A0(r,A,_),A0(v,s,h),A0(g,h,_),A0(w,A,s),i=n+1120|0,J2(i,r),A1(A,e,i),A0(r,A,_),A0(v,s,h),A0(g,h,_),A0(w,A,s),i=n+1280|0,J2(i,r),A1(A,e,i),A0(r,A,_),A0(v,s,h),A0(g,h,_),A0(w,A,s),i=n+1440|0,J2(i,r),A1(A,e,i),A0(r,A,_),A0(v,s,h),A0(g,h,_),A0(w,A,s),i=n+1600|0,J2(i,r),A1(A,e,i),A0(r,A,_),A0(v,s,h),A0(g,h,_),A0(w,A,s),J2(n+1760|0,r),t[n+32>>2]=0,t[n+36>>2]=0,t[n+24>>2]=0,t[n+28>>2]=0,t[n+16>>2]=0,t[n+20>>2]=0,t[n+8>>2]=0,t[n+12>>2]=0,t[n>>2]=0,t[n+4>>2]=0,t[n+44>>2]=0,t[n+48>>2]=0,t[n+40>>2]=1,t[n+52>>2]=0,t[n+56>>2]=0,t[n+60>>2]=0,t[n+64>>2]=0,t[n+68>>2]=0,t[n+72>>2]=0,t[n+76>>2]=0,t[n+80>>2]=1,k2(n+84|0,0,76),A=n+120|0,u=n+2008|0,B=n+1968|0,a=n+80|0,r=n+40|0,i=252;;){e=t[n+36>>2],t[n+1960>>2]=t[n+32>>2],t[n+1964>>2]=e,e=t[n+28>>2],t[n+1952>>2]=t[n+24>>2],t[n+1956>>2]=e,e=t[n+20>>2],t[n+1944>>2]=t[n+16>>2],t[n+1948>>2]=e,e=t[n+12>>2],t[n+1936>>2]=t[n+8>>2],t[n+1940>>2]=e,e=t[n+4>>2],t[n+1928>>2]=t[n>>2],t[n+1932>>2]=e,e=t[r+36>>2],t[B+32>>2]=t[r+32>>2],t[B+36>>2]=e,e=t[r+28>>2],t[B+24>>2]=t[r+24>>2],t[B+28>>2]=e,e=t[r+20>>2],t[B+16>>2]=t[r+16>>2],t[B+20>>2]=e,e=t[r+12>>2],t[B+8>>2]=t[r+8>>2],t[B+12>>2]=e,e=t[r+4>>2],t[B>>2]=t[r>>2],t[B+4>>2]=e,e=t[a+36>>2],t[u+32>>2]=t[a+32>>2],t[u+36>>2]=e,e=t[a+28>>2],t[u+24>>2]=t[a+24>>2],t[u+28>>2]=e,e=t[a+20>>2],t[u+16>>2]=t[a+16>>2],t[u+20>>2]=e,e=t[a+12>>2],t[u+8>>2]=t[a+8>>2],t[u+12>>2]=e,e=t[a+4>>2],t[u>>2]=t[a>>2],t[u+4>>2]=e,e=i,S=f[i+33712|0],q=n+480|0,v1(q,n+1928|0);e:{if((S|0)>0){i=n+320|0,A0(i,q,_),A0(v,s,h),A0(g,h,_),A0(w,q,s),A1(q,i,(n+640|0)+i2((S&254)>>>1|0,160)|0);break e}if((S|0)>=0)break e;i=n+320|0,q=n+480|0,A0(i,q,_),A0(v,s,h),A0(g,h,_),A0(w,q,s),dn(q,i,(n+640|0)+i2((0-S&254)>>>1|0,160)|0)}if(I=n+480|0,A0(n,I,_),A0(r,s,h),A0(a,h,_),A0(A,I,s),i=e-1|0,!e)break}return D=t[n+40>>2],M=t[n+80>>2],Y=t[n+44>>2],_=t[n+84>>2],s=t[n+48>>2],h=t[n+88>>2],u=t[n+52>>2],B=t[n+92>>2],v=t[n+56>>2],g=t[n+96>>2],w=t[n+60>>2],S=t[n+100>>2],q=t[n+64>>2],A=t[n+104>>2],a=t[n+68>>2],r=t[n+108>>2],e=t[n+72>>2],i=t[n+112>>2],t[n+676>>2]=t[n+76>>2]-t[n+116>>2],t[n+672>>2]=e-i,t[n+668>>2]=a-r,t[n+664>>2]=q-A,t[n+660>>2]=w-S,t[n+656>>2]=v-g,t[n+652>>2]=u-B,t[n+648>>2]=s-h,t[n+644>>2]=Y-_,t[n+640>>2]=D-M,V2(I,n),e=j1(I,32),V2(I,n+640|0),i=j1(I,32),X=n+2048|0,i&e}function jn(i,n){var e=0,r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0;e=X-288|0,X=e,_=o[i+28|0]|o[i+29|0]<<8|(o[i+30|0]<<16|o[i+31|0]<<24),s=o[i+24|0]|o[i+25|0]<<8|(o[i+26|0]<<16|o[i+27|0]<<24),h=o[i+20|0]|o[i+21|0]<<8|(o[i+22|0]<<16|o[i+23|0]<<24),a=o[i+16|0]|o[i+17|0]<<8|(o[i+18|0]<<16|o[i+19|0]<<24),u=o[i+4|0]|o[i+5|0]<<8|(o[i+6|0]<<16|o[i+7|0]<<24),B=o[i+8|0]|o[i+9|0]<<8|(o[i+10|0]<<16|o[i+11|0]<<24),v=o[i+12|0]|o[i+13|0]<<8|(o[i+14|0]<<16|o[i+15|0]<<24),g=o[i|0]|o[i+1|0]<<8|(o[i+2|0]<<16|o[i+3|0]<<24),i=t[n+124>>2],t[e+280>>2]=t[n+120>>2],t[e+284>>2]=i,i=t[n+116>>2],t[e+272>>2]=t[n+112>>2],t[e+276>>2]=i,i=t[n+100>>2],t[e+240>>2]=t[n+96>>2],t[e+244>>2]=i,i=t[n+108>>2],t[e+248>>2]=t[n+104>>2],t[e+252>>2]=i,i=t[n+116>>2],t[e+224>>2]=t[n+112>>2],t[e+228>>2]=i,i=t[n+124>>2],t[e+232>>2]=t[n+120>>2],t[e+236>>2]=i,i=e+256|0,H0(i,e+240|0,e+224|0),A=t[e+268>>2],t[n+120>>2]=t[e+264>>2],t[n+124>>2]=A,A=t[e+260>>2],t[n+112>>2]=t[e+256>>2],t[n+116>>2]=A,A=t[n+84>>2],t[e+208>>2]=t[n+80>>2],t[e+212>>2]=A,A=t[n+92>>2],t[e+216>>2]=t[n+88>>2],t[e+220>>2]=A,A=t[n+100>>2],t[e+192>>2]=t[n+96>>2],t[e+196>>2]=A,A=t[n+108>>2],t[e+200>>2]=t[n+104>>2],t[e+204>>2]=A,H0(i,e+208|0,e+192|0),A=t[e+268>>2],t[n+104>>2]=t[e+264>>2],t[n+108>>2]=A,A=t[e+260>>2],t[n+96>>2]=t[e+256>>2],t[n+100>>2]=A,A=n- -64|0,r=t[A+4>>2],t[e+176>>2]=t[A>>2],t[e+180>>2]=r,r=t[n+76>>2],t[e+184>>2]=t[n+72>>2],t[e+188>>2]=r,r=t[n+84>>2],t[e+160>>2]=t[n+80>>2],t[e+164>>2]=r,r=t[n+92>>2],t[e+168>>2]=t[n+88>>2],t[e+172>>2]=r,H0(i,e+176|0,e+160|0),r=t[e+268>>2],t[n+88>>2]=t[e+264>>2],t[n+92>>2]=r,r=t[e+260>>2],t[n+80>>2]=t[e+256>>2],t[n+84>>2]=r,r=t[n+52>>2],t[e+144>>2]=t[n+48>>2],t[e+148>>2]=r,r=t[n+60>>2],t[e+152>>2]=t[n+56>>2],t[e+156>>2]=r,r=t[A+4>>2],t[e+128>>2]=t[A>>2],t[e+132>>2]=r,r=t[n+76>>2],t[e+136>>2]=t[n+72>>2],t[e+140>>2]=r,H0(i,e+144|0,e+128|0),r=t[e+268>>2],t[n+72>>2]=t[e+264>>2],t[n+76>>2]=r,r=t[e+260>>2],t[A>>2]=t[e+256>>2],t[A+4>>2]=r,r=t[n+36>>2],t[e+112>>2]=t[n+32>>2],t[e+116>>2]=r,r=t[n+44>>2],t[e+120>>2]=t[n+40>>2],t[e+124>>2]=r,r=t[n+52>>2],t[e+96>>2]=t[n+48>>2],t[e+100>>2]=r,r=t[n+60>>2],t[e+104>>2]=t[n+56>>2],t[e+108>>2]=r,H0(i,e+112|0,e+96|0),r=t[e+268>>2],t[n+56>>2]=t[e+264>>2],t[n+60>>2]=r,r=t[e+260>>2],t[n+48>>2]=t[e+256>>2],t[n+52>>2]=r,r=t[n+20>>2],t[e+80>>2]=t[n+16>>2],t[e+84>>2]=r,r=t[n+28>>2],t[e+88>>2]=t[n+24>>2],t[e+92>>2]=r,r=t[n+36>>2],t[e+64>>2]=t[n+32>>2],t[e+68>>2]=r,r=t[n+44>>2],t[e+72>>2]=t[n+40>>2],t[e+76>>2]=r,H0(i,e+80|0,e- -64|0),r=t[e+268>>2],t[n+40>>2]=t[e+264>>2],t[n+44>>2]=r,r=t[e+260>>2],t[n+32>>2]=t[e+256>>2],t[n+36>>2]=r,r=t[n+4>>2],t[e+48>>2]=t[n>>2],t[e+52>>2]=r,r=t[n+12>>2],t[e+56>>2]=t[n+8>>2],t[e+60>>2]=r,r=t[n+20>>2],t[e+32>>2]=t[n+16>>2],t[e+36>>2]=r,r=t[n+28>>2],t[e+40>>2]=t[n+24>>2],t[e+44>>2]=r,H0(i,e+48|0,e+32|0),r=t[e+268>>2],t[n+24>>2]=t[e+264>>2],t[n+28>>2]=r,r=t[e+260>>2],t[n+16>>2]=t[e+256>>2],t[n+20>>2]=r,r=t[e+276>>2],t[e+16>>2]=t[e+272>>2],t[e+20>>2]=r,r=t[e+284>>2],t[e+24>>2]=t[e+280>>2],t[e+28>>2]=r,r=t[n+4>>2],t[e>>2]=t[n>>2],t[e+4>>2]=r,r=t[n+12>>2],t[e+8>>2]=t[n+8>>2],t[e+12>>2]=r,H0(i,e+16|0,e),i=t[e+268>>2],t[n+8>>2]=t[e+264>>2],t[n+12>>2]=i,i=t[e+260>>2],t[n>>2]=t[e+256>>2],t[n+4>>2]=i,t[n+12>>2]=t[n+12>>2]^v,t[n+8>>2]=t[n+8>>2]^B,t[n+4>>2]=t[n+4>>2]^u,t[n>>2]=t[n>>2]^g,t[A>>2]=t[A>>2]^a,t[n+68>>2]=t[n+68>>2]^h,t[n+72>>2]=t[n+72>>2]^s,t[n+76>>2]=t[n+76>>2]^_,X=e+288|0}function Qr(i,n){var e=0,r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0;for(r=X-480|0,X=r,e=o[n|0],f[r+289|0]=e>>>4,f[r+288|0]=e&15,e=o[n+1|0],f[r+291|0]=e>>>4,f[r+290|0]=e&15,e=o[n+2|0],f[r+293|0]=e>>>4,f[r+292|0]=e&15,e=o[n+3|0],f[r+295|0]=e>>>4,f[r+294|0]=e&15,e=o[n+4|0],f[r+297|0]=e>>>4,f[r+296|0]=e&15,e=o[n+5|0],f[r+299|0]=e>>>4,f[r+298|0]=e&15,e=o[n+6|0],f[r+301|0]=e>>>4,f[r+300|0]=e&15,e=o[n+7|0],f[r+303|0]=e>>>4,f[r+302|0]=e&15,e=o[n+8|0],f[r+305|0]=e>>>4,f[r+304|0]=e&15,e=o[n+9|0],f[r+307|0]=e>>>4,f[r+306|0]=e&15,e=o[n+10|0],f[r+309|0]=e>>>4,f[r+308|0]=e&15,e=o[n+11|0],f[r+311|0]=e>>>4,f[r+310|0]=e&15,e=o[n+12|0],f[r+313|0]=e>>>4,f[r+312|0]=e&15,e=o[n+13|0],f[r+315|0]=e>>>4,f[r+314|0]=e&15,e=o[n+14|0],f[r+317|0]=e>>>4,f[r+316|0]=e&15,e=o[n+15|0],f[r+319|0]=e>>>4,f[r+318|0]=e&15,e=o[n+16|0],f[r+321|0]=e>>>4,f[r+320|0]=e&15,e=o[n+17|0],f[r+323|0]=e>>>4,f[r+322|0]=e&15,e=o[n+18|0],f[r+325|0]=e>>>4,f[r+324|0]=e&15,e=o[n+19|0],f[r+327|0]=e>>>4,f[r+326|0]=e&15,e=o[n+20|0],f[r+329|0]=e>>>4,f[r+328|0]=e&15,e=o[n+21|0],f[r+331|0]=e>>>4,f[r+330|0]=e&15,e=o[n+22|0],f[r+333|0]=e>>>4,f[r+332|0]=e&15,e=o[n+23|0],f[r+335|0]=e>>>4,f[r+334|0]=e&15,e=o[n+24|0],f[r+337|0]=e>>>4,f[r+336|0]=e&15,e=o[n+25|0],f[r+339|0]=e>>>4,f[r+338|0]=e&15,e=o[n+26|0],f[r+341|0]=e>>>4,f[r+340|0]=e&15,e=o[n+27|0],f[r+343|0]=e>>>4,f[r+342|0]=e&15,e=o[n+28|0],f[r+345|0]=e>>>4,f[r+344|0]=e&15,e=o[n+29|0],f[r+347|0]=e>>>4,f[r+346|0]=e&15,e=o[n+30|0],f[r+349|0]=e>>>4,f[r+348|0]=e&15,n=o[n+31|0],f[r+351|0]=n>>>4,f[r+350|0]=n&15,n=0;A=(r+288|0)+_|0,n=o[A|0]+n|0,e=n+8|0,f[A|0]=n-(e&240),n=o[A+1|0]+(e<<24>>24>>4)|0,e=n+8|0,f[A+1|0]=n-(e&240),n=o[A+2|0]+(e<<24>>24>>4)|0,e=n+8|0,f[A+2|0]=n-(e&240),n=e<<24>>24>>4,_=_+3|0,(_|0)!=63;);for(f[r+351|0]=o[r+351|0]+n,t[i+32>>2]=0,t[i+36>>2]=0,t[i+24>>2]=0,t[i+28>>2]=0,t[i+16>>2]=0,t[i+20>>2]=0,t[i+8>>2]=0,t[i+12>>2]=0,t[i>>2]=0,t[i+4>>2]=0,t[i+44>>2]=0,t[i+48>>2]=0,_=i+40|0,t[_>>2]=1,t[i+52>>2]=0,t[i+56>>2]=0,t[i+60>>2]=0,t[i+64>>2]=0,t[i+68>>2]=0,t[i+72>>2]=0,t[i+76>>2]=0,t[i+80>>2]=1,k2(i+84|0,0,76),v=i+120|0,e=i+80|0,s=r+208|0,B=r+168|0,h=r+248|0,n=1;A=r+8|0,r4(A,n>>>1|0,f[(r+288|0)+n|0]),a=r+128|0,w6(a,i,A),A0(i,a,h),A0(_,B,s),A0(e,s,h),A0(v,a,B),A=n>>>0<62,n=n+2|0,!!A;);for(n=t[i+36>>2],t[r+392>>2]=t[i+32>>2],t[r+396>>2]=n,n=t[i+28>>2],t[r+384>>2]=t[i+24>>2],t[r+388>>2]=n,n=t[i+20>>2],t[r+376>>2]=t[i+16>>2],t[r+380>>2]=n,n=t[i+12>>2],t[r+368>>2]=t[i+8>>2],t[r+372>>2]=n,n=t[i+4>>2],t[r+360>>2]=t[i>>2],t[r+364>>2]=n,n=t[_+4>>2],t[r+400>>2]=t[_>>2],t[r+404>>2]=n,n=t[_+12>>2],t[r+408>>2]=t[_+8>>2],t[r+412>>2]=n,n=t[_+20>>2],t[r+416>>2]=t[_+16>>2],t[r+420>>2]=n,n=t[_+28>>2],t[r+424>>2]=t[_+24>>2],t[r+428>>2]=n,n=t[_+36>>2],t[r+432>>2]=t[_+32>>2],t[r+436>>2]=n,n=t[e+4>>2],t[r+440>>2]=t[e>>2],t[r+444>>2]=n,n=t[e+12>>2],t[r+448>>2]=t[e+8>>2],t[r+452>>2]=n,n=t[e+20>>2],t[r+456>>2]=t[e+16>>2],t[r+460>>2]=n,n=t[e+28>>2],t[r+464>>2]=t[e+24>>2],t[r+468>>2]=n,n=t[e+36>>2],t[r+472>>2]=t[e+32>>2],t[r+476>>2]=n,u=r+360|0,v1(a,u),A0(u,a,h),A=r+400|0,A0(A,B,s),n=r+440|0,A0(n,s,h),v1(a,u),A0(u,a,h),A0(A,B,s),A0(n,s,h),v1(a,u),A0(u,a,h),A0(A,B,s),A0(n,s,h),v1(a,u),A0(i,a,h),A0(_,B,s),A0(e,s,h),A0(v,a,B),n=0;A=r+8|0,r4(A,n>>>1|0,f[(r+288|0)+n|0]),u=r+128|0,w6(u,i,A),A0(i,u,h),A0(_,B,s),A0(e,s,h),A0(v,u,B),A=n>>>0<62,n=n+2|0,!!A;);X=r+480|0}function Li(i,n,e,r,A){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0;var _=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0;if(r=o[A|0]|o[A+1|0]<<8|(o[A+2|0]<<16|o[A+3|0]<<24),h=r^1886610805,_=o[A+4|0]|o[A+5|0]<<8|(o[A+6|0]<<16|o[A+7|0]<<24),s=_^1936682341,a=r^1852142177,u=_^1819895653,r=o[A+8|0]|o[A+9|0]<<8|(o[A+10|0]<<16|o[A+11|0]<<24),_=r^1852075885,A=o[A+12|0]|o[A+13|0]<<8|(o[A+14|0]<<16|o[A+15|0]<<24),v=A^1685025377,B=r^2037671283,g=A^1952801890,r=e&-8,r){for(r=n+r|0;S=o[n|0]|o[n+1|0]<<8|(o[n+2|0]<<16|o[n+3|0]<<24),A=B^S,a=a+A|0,Y=o[n+4|0]|o[n+5|0]<<8|(o[n+6|0]<<16|o[n+7|0]<<24),g=g^Y,u=u+g|0,u=A>>>0>a>>>0?u+1|0:u,s=s+v|0,q=s+1|0,B=s,s=_+h|0,B=h>>>0>s>>>0?q:B,_=x(_,v,13)^s,h=a+_|0,w=c^B,v=u+w|0,w=x(_,w,17)^h,v=_>>>0>h>>>0?v+1|0:v,I=v^c,M=x(w,I,13),D=c,A=x(A,g,16),_=u^c,u=A^a,a=x(s,B,32),A=u+a|0,s=c+_|0,B=A>>>0<a>>>0?s+1|0:s,a=I+B|0,q=a+1|0,s=a,a=A+w|0,s=a>>>0<A>>>0?q:s,g=a^M,w=s^D,I=x(g,w,17),M=c,_=x(u,_,21),u=B^c,B=A^_,h=x(h,v,32),A=B+h|0,_=c+u|0,D=A>>>0<h>>>0?_+1|0:_,h=D+w|0,q=h+1|0,_=h,h=A+g|0,w=h>>>0<A>>>0?q:_,_=h^I,v=w^M,u=x(B,u,16),B=D^c,g=B,A=A^u,u=x(A,B,21),I=c,a=x(a,s,32),A=a+A|0,B=A^u,s=c+g|0,s=A>>>0<a>>>0?s+1|0:s,g=s^I,a=x(h,w,32),u=c,h=A^S,s=s^Y,n=n+8|0,(r|0)!=(n|0););n=r}A=e<<24,r=0;e:switch((e&7)-1|0){case 6:A=A|o[n+6|0]<<16;case 5:A=A|o[n+5|0]<<8;case 4:A=A|o[n+4|0];case 3:r=o[n+3|0]<<24;case 2:r=r|o[n+2|0]<<16;case 1:r=r|o[n+1|0]<<8;case 0:r=o[n|0]|r;break;default:break e}return n=r^B,e=A^g,B=x(n,e,16),e=e+u|0,n=n+a|0,e=n>>>0<a>>>0?e+1|0:e,u=n^B,B=e^c,g=x(u,B,21),w=c,a=s+v|0,q=a+1|0,s=a,a=_+h|0,h=h>>>0>a>>>0?q:s,s=h,S=x(a,h,32),h=u+S|0,u=g^h,B=c+B|0,B=h>>>0<S>>>0?B+1|0:B,g=w^B,w=x(u,g,16),S=c,_=x(_,v,13)^a,n=n+_|0,v=c^s,e=v+e|0,a=n>>>0<_>>>0?e+1|0:e,s=x(n,a,32),e=u+s|0,u=w^e,g=c+g|0,s=e>>>0<s>>>0?g+1|0:g,g=s^S,w=x(u,g,21),S=c,v=x(_,v,17)^n,_=v,n=h+_|0,a=c^a,h=a+B|0,h=n>>>0<_>>>0?h+1|0:h,B=h,_=w,w=x(n,h,32),h=u+w|0,_=_^h,u=c+g|0,u=h>>>0<w>>>0?u+1|0:u,g=u^S,w=x(_,g,16),S=c,q=e,a=x(v,a,13)^n,e=a,n=q+e|0,q=s,s=B^c,v=q+s|0,e=n>>>0<e>>>0?v+1|0:v,B=e,e=x(n,e,32),v=g+c|0,e=_+(e^255)|0,g=e>>>0<_>>>0?v+1|0:v,_=S^g,v=e^w,w=x(v,_,21),S=c,a=x(a,s,17)^n,r=r^h,n=a+r|0,s=B^c,A=s+(A^u)|0,r=n>>>0<r>>>0?A+1|0:A,u=r,r=x(n,r,32),A=_+c|0,r=r+v|0,_=r>>>0<v>>>0?A+1|0:A,A=_^S,h=r^w,v=x(h,A,16),B=c,a=x(a,s,13)^n,n=e+a|0,s=c^u,u=g+s|0,e=n>>>0<e>>>0?u+1|0:u,u=e,e=x(n,e,32),q=B,A=A+c|0,e=e+h|0,B=e>>>0<h>>>0?A+1|0:A,A=q^B,h=e^v,v=x(h,A,21),g=c,a=x(a,s,17),s=u^c,_=_+s|0,w=_+1|0,q=_,u=r,_=n^a,r=r+_|0,n=u>>>0>r>>>0?w:q,a=n,n=x(r,n,32),A=A+c|0,n=n+h|0,u=n>>>0<h>>>0?A+1|0:A,A=u^g,h=n^v,v=x(h,A,16),g=c,_=x(_,s,13),a=a^c,s=B+a|0,_=r^_,r=e+_|0,e=r>>>0<e>>>0?s+1|0:s,s=e,e=x(r,e,32),A=A+c|0,e=e+h|0,B=e>>>0<h>>>0?A+1|0:A,A=B^g,h=e^v,v=x(h,A,21),g=c,_=x(_,a,17),a=s^c,s=u+a|0,q=s+1|0,u=s,s=r^_,r=n+s|0,_=r>>>0<n>>>0?q:u,n=x(r,_,32),A=A+c|0,n=n+h|0,u=n>>>0<h>>>0?A+1|0:A,A=u^g,h=n^v,v=x(h,A,16),g=c,a=x(s,a,13),_=_^c,s=B+_|0,a=r^a,r=e+a|0,e=r>>>0<e>>>0?s+1|0:s,s=e,e=x(r,e,32),A=A+c|0,e=e+h|0,A=e>>>0<h>>>0?A+1|0:A,h=x(e^v,A^g,21),v=c,r=x(a,_,17)^r,_=s^c,a=x(r,_,13),_=_+u|0,r=n+r|0,n=c^(n>>>0>r>>>0?_+1|0:_),r=r^a,h=x(r,n,17)^h,_=c^v,n=n+A|0,s=n+1|0,A=n,n=e+r|0,e=e>>>0>n>>>0?s:A,n=x(n,e,32)^h^n,f[i|0]=n,f[i+1|0]=n>>>8,f[i+2|0]=n>>>16,f[i+3|0]=n>>>24,n=e^(c^_),f[i+4|0]=n,f[i+5|0]=n>>>8,f[i+6|0]=n>>>16,f[i+7|0]=n>>>24,0}function Yi(i,n){var e=0,r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0,z=0,$=0,V=0,W=0,e0=0,i0=0,o0=0,s0=0,h0=0,u0=0,y0=0,f0=0,B0=0,c0=0;e=X-624|0,X=e,r=e+480|0,U(r,n),A0(r,1632,r),_=t[e+516>>2],t[e+276>>2]=_,s=t[e+512>>2],t[e+272>>2]=s,h=t[e+508>>2],t[e+268>>2]=h,a=t[e+504>>2],t[e+264>>2]=a,u=t[e+500>>2],t[e+260>>2]=u,B=t[e+496>>2],t[e+256>>2]=B,v=t[e+492>>2],t[e+252>>2]=v,g=t[e+488>>2],t[e+248>>2]=g,w=t[e+484>>2],t[e+244>>2]=w,S=t[e+480>>2],t[e+240>>2]=S+1,A=e+240|0,A0(A,A,33968),t[e+468>>2]=_-12055116,t[e+464>>2]=s-18696448,t[e+460>>2]=h-3247719,t[e+456>>2]=a-6275908,t[e+452>>2]=u-8787816,t[e+448>>2]=B+114729,t[e+444>>2]=v+6949391,t[e+440>>2]=g-15372611,t[e+436>>2]=w+13857413,t[e+432>>2]=S-10913610,q=e+192|0,A0(q,r,1584),t[e+228>>2]=0-t[e+228>>2],t[e+224>>2]=0-t[e+224>>2],t[e+220>>2]=0-t[e+220>>2],t[e+216>>2]=0-t[e+216>>2],t[e+212>>2]=0-t[e+212>>2],t[e+208>>2]=0-t[e+208>>2],t[e+204>>2]=0-t[e+204>>2],t[e+200>>2]=0-t[e+200>>2],t[e+196>>2]=0-t[e+196>>2],t[e+192>>2]=t[e+192>>2]^-1,A0(q,q,e+432|0),y0=e+384|0,r=q6(y0,A,q),A=e+336|0,A0(A,y0,n),f0=e+576|0,V2(f0,A),c0=o[e+576|0],$=t[e+420>>2],A=t[e+372>>2],V=t[e+416>>2],I=t[e+368>>2],W=t[e+412>>2],D=t[e+364>>2],e0=t[e+408>>2],M=t[e+360>>2],i0=t[e+404>>2],Y=t[e+356>>2],o0=t[e+400>>2],N=t[e+352>>2],s0=t[e+396>>2],Q=t[e+348>>2],h0=t[e+392>>2],G=t[e+344>>2],u0=t[e+388>>2],K=t[e+340>>2],B0=t[e+384>>2],z=t[e+336>>2],n=r-1|0,t[e+612>>2]=n&_,t[e+608>>2]=n&s,t[e+604>>2]=n&h,t[e+600>>2]=n&a,t[e+596>>2]=n&u,t[e+592>>2]=n&B,t[e+588>>2]=n&v,t[e+584>>2]=n&g,t[e+580>>2]=n&w,t[e+576>>2]=S|0-r,r=0-(c0&1)|0,z=n&(0-(z^r&(z^0-z))^B0)^B0,t[e+384>>2]=z,K=u0^n&(u0^0-(K^r&(K^0-K))),t[e+388>>2]=K,G=h0^n&(h0^0-(G^r&(G^0-G))),t[e+392>>2]=G,Q=s0^n&(s0^0-(Q^r&(Q^0-Q))),t[e+396>>2]=Q,N=o0^n&(o0^0-(N^r&(N^0-N))),t[e+400>>2]=N,Y=i0^n&(i0^0-(Y^r&(Y^0-Y))),t[e+404>>2]=Y,M=e0^n&(e0^0-(M^r&(M^0-M))),t[e+408>>2]=M,D=W^n&(W^0-(D^r&(D^0-D))),t[e+412>>2]=D,I=V^n&(V^0-(I^r&(I^0-I))),t[e+416>>2]=I,r=$^n&($^0-(A^r&(A^0-A))),t[e+420>>2]=r,t[e+564>>2]=_,t[e+560>>2]=s,t[e+556>>2]=h,t[e+552>>2]=a,t[e+548>>2]=u,t[e+544>>2]=B,t[e+540>>2]=v,t[e+536>>2]=g,t[e+532>>2]=w,t[e+528>>2]=S-1,n=e+528|0,A0(n,n,f0),A0(n,n,34016),_=t[e+192>>2],s=t[e+528>>2],h=t[e+196>>2],a=t[e+532>>2],u=t[e+200>>2],B=t[e+536>>2],v=t[e+204>>2],g=t[e+540>>2],w=t[e+208>>2],S=t[e+544>>2],A=t[e+212>>2],$=t[e+548>>2],V=t[e+216>>2],W=t[e+552>>2],e0=t[e+220>>2],i0=t[e+556>>2],o0=t[e+224>>2],s0=t[e+560>>2],h0=t[e+228>>2],u0=t[e+564>>2],t[e+180>>2]=r<<1,t[e+176>>2]=I<<1,t[e+172>>2]=D<<1,t[e+168>>2]=M<<1,t[e+164>>2]=Y<<1,t[e+160>>2]=N<<1,t[e+156>>2]=Q<<1,t[e+152>>2]=G<<1,t[e+148>>2]=K<<1,t[e+144>>2]=z<<1,t[e+564>>2]=u0-h0,t[e+560>>2]=s0-o0,t[e+556>>2]=i0-e0,t[e+552>>2]=W-V,t[e+548>>2]=$-A,t[e+544>>2]=S-w,t[e+540>>2]=g-v,t[e+536>>2]=B-u,t[e+532>>2]=a-h,t[e+528>>2]=s-_,r=e+144|0,A0(r,r,q),q=e+96|0,A0(q,n,34064),U(e+288|0,y0),n=t[e+324>>2],t[e+84>>2]=0-n,_=t[e+320>>2],t[e+80>>2]=0-_,s=t[e+316>>2],t[e+76>>2]=0-s,h=t[e+312>>2],t[e+72>>2]=0-h,a=t[e+308>>2],t[e+68>>2]=0-a,u=t[e+304>>2],t[e+64>>2]=0-u,B=t[e+300>>2],t[e+60>>2]=0-B,v=t[e+296>>2],t[e+56>>2]=0-v,g=t[e+292>>2],t[e+52>>2]=0-g,w=t[e+288>>2],t[e+48>>2]=1-w,t[e+36>>2]=n,t[e+32>>2]=_,t[e+28>>2]=s,t[e+24>>2]=h,t[e+20>>2]=a,t[e+16>>2]=u,t[e+12>>2]=B,t[e+8>>2]=v,t[e+4>>2]=g,t[e>>2]=w+1,A0(i,r,e),n=e+48|0,A0(i+40|0,n,q),A0(i+80|0,q,e),A0(i+120|0,r,n),X=e+624|0}function v6(i,n,e){var r=0,A=0,_=0,s=0,h=0,a=0,u=0;s=X+-64|0,X=s;e:{if((e-65&255)>>>0>191){if(_=-1,!(o[i+80|0]|o[i+81|0]<<8|(o[i+82|0]<<16|o[i+83|0]<<24)|(o[i+84|0]|o[i+85|0]<<8|(o[i+86|0]<<16|o[i+87|0]<<24)))){if(h=o[i+352|0]|o[i+353|0]<<8|(o[i+354|0]<<16|o[i+355|0]<<24),h>>>0>=129){if(r=i- -64|0,A=o[r|0]|o[r+1|0]<<8|(o[r+2|0]<<16|o[r+3|0]<<24),_=o[r+4|0]|o[r+5|0]<<8|(o[r+6|0]<<16|o[r+7|0]<<24),a=_,h=A+128|0,_=h>>>0<128?_+1|0:_,f[r|0]=h,f[r+1|0]=h>>>8,f[r+2|0]=h>>>16,f[r+3|0]=h>>>24,f[r+4|0]=_,f[r+5|0]=_>>>8,f[r+6|0]=_>>>16,f[r+7|0]=_>>>24,_=o[i+76|0]|o[i+77|0]<<8|(o[i+78|0]<<16|o[i+79|0]<<24),r=(a|0)==-1&A>>>0>4294967167,A=r+(o[i+72|0]|o[i+73|0]<<8|(o[i+74|0]<<16|o[i+75|0]<<24))|0,_=r>>>0>A>>>0?_+1|0:_,f[i+72|0]=A,f[i+73|0]=A>>>8,f[i+74|0]=A>>>16,f[i+75|0]=A>>>24,f[i+76|0]=_,f[i+77|0]=_>>>8,f[i+78|0]=_>>>16,f[i+79|0]=_>>>24,_=i+96|0,jt(i,_),r=(o[i+352|0]|o[i+353|0]<<8|(o[i+354|0]<<16|o[i+355|0]<<24))-128|0,f[i+352|0]=r,f[i+353|0]=r>>>8,f[i+354|0]=r>>>16,f[i+355|0]=r>>>24,r>>>0>=129)break e;r&&_2(_,i+224|0,r),h=o[i+352|0]|o[i+353|0]<<8|(o[i+354|0]<<16|o[i+355|0]<<24)}r=i- -64|0,_=o[r|0]|o[r+1|0]<<8|(o[r+2|0]<<16|o[r+3|0]<<24),u=o[r+4|0]|o[r+5|0]<<8|(o[r+6|0]<<16|o[r+7|0]<<24),A=u,a=_+h|0,A=a>>>0<h>>>0?A+1|0:A,f[r|0]=a,f[r+1|0]=a>>>8,f[r+2|0]=a>>>16,f[r+3|0]=a>>>24,f[r+4|0]=A,f[r+5|0]=A>>>8,f[r+6|0]=A>>>16,f[r+7|0]=A>>>24,r=(A|0)==(u|0)&_>>>0>a>>>0|A>>>0<u>>>0,_=o[i+76|0]|o[i+77|0]<<8|(o[i+78|0]<<16|o[i+79|0]<<24),A=r+(o[i+72|0]|o[i+73|0]<<8|(o[i+74|0]<<16|o[i+75|0]<<24))|0,_=A>>>0<r>>>0?_+1|0:_,f[i+72|0]=A,f[i+73|0]=A>>>8,f[i+74|0]=A>>>16,f[i+75|0]=A>>>24,f[i+76|0]=_,f[i+77|0]=_>>>8,f[i+78|0]=_>>>16,f[i+79|0]=_>>>24,o[i+356|0]&&(f[i+88|0]=255,f[i+89|0]=255,f[i+90|0]=255,f[i+91|0]=255,f[i+92|0]=255,f[i+93|0]=255,f[i+94|0]=255,f[i+95|0]=255),f[i+80|0]=255,f[i+81|0]=255,f[i+82|0]=255,f[i+83|0]=255,f[i+84|0]=255,f[i+85|0]=255,f[i+86|0]=255,f[i+87|0]=255,r=i+96|0,_=0,A=256-h|0,A&&k2(r+h|0,0,A),jt(i,r),A=o[i+4|0]|o[i+5|0]<<8|(o[i+6|0]<<16|o[i+7|0]<<24),t[s>>2]=o[i|0]|o[i+1|0]<<8|(o[i+2|0]<<16|o[i+3|0]<<24),t[s+4>>2]=A,A=o[i+12|0]|o[i+13|0]<<8|(o[i+14|0]<<16|o[i+15|0]<<24),t[s+8>>2]=o[i+8|0]|o[i+9|0]<<8|(o[i+10|0]<<16|o[i+11|0]<<24),t[s+12>>2]=A,A=o[i+20|0]|o[i+21|0]<<8|(o[i+22|0]<<16|o[i+23|0]<<24),t[s+16>>2]=o[i+16|0]|o[i+17|0]<<8|(o[i+18|0]<<16|o[i+19|0]<<24),t[s+20>>2]=A,A=o[i+28|0]|o[i+29|0]<<8|(o[i+30|0]<<16|o[i+31|0]<<24),t[s+24>>2]=o[i+24|0]|o[i+25|0]<<8|(o[i+26|0]<<16|o[i+27|0]<<24),t[s+28>>2]=A,A=o[i+36|0]|o[i+37|0]<<8|(o[i+38|0]<<16|o[i+39|0]<<24),t[s+32>>2]=o[i+32|0]|o[i+33|0]<<8|(o[i+34|0]<<16|o[i+35|0]<<24),t[s+36>>2]=A,A=o[i+44|0]|o[i+45|0]<<8|(o[i+46|0]<<16|o[i+47|0]<<24),t[s+40>>2]=o[i+40|0]|o[i+41|0]<<8|(o[i+42|0]<<16|o[i+43|0]<<24),t[s+44>>2]=A,A=o[i+52|0]|o[i+53|0]<<8|(o[i+54|0]<<16|o[i+55|0]<<24),t[s+48>>2]=o[i+48|0]|o[i+49|0]<<8|(o[i+50|0]<<16|o[i+51|0]<<24),t[s+52>>2]=A,A=o[i+60|0]|o[i+61|0]<<8|(o[i+62|0]<<16|o[i+63|0]<<24),t[s+56>>2]=o[i+56|0]|o[i+57|0]<<8|(o[i+58|0]<<16|o[i+59|0]<<24),t[s+60>>2]=A,e&&_2(n,s,e),N0(i,64),N0(r,256)}return X=s- -64|0,_}Q2(),C2()}an(1386,1234,306,1142),C2()}function Ni(i,n,e){i=i|0,n=n|0,e=e|0;var r=0,A=0,_=0;r=X-192|0,X=r,t[r+128>>2]=0,t[r+132>>2]=0,t[r+136>>2]=0,t[r+140>>2]=0,t[r+144>>2]=0,t[r+148>>2]=0,t[r+152>>2]=0,t[r+156>>2]=0,t[r+96>>2]=0,t[r+100>>2]=0,t[r+104>>2]=0,t[r+108>>2]=0,t[r+112>>2]=0,t[r+116>>2]=0,t[r+120>>2]=0,t[r+124>>2]=0,A=t[9821],t[r+160>>2]=t[9820],t[r+164>>2]=A,A=t[9823],t[r+168>>2]=t[9822],t[r+172>>2]=A,A=t[9825],t[r+176>>2]=t[9824],t[r+180>>2]=A,A=t[9827],t[r+184>>2]=t[9826],t[r+188>>2]=A,A=o[e+4|0]|o[e+5|0]<<8|(o[e+6|0]<<16|o[e+7|0]<<24),t[r+64>>2]=o[e|0]|o[e+1|0]<<8|(o[e+2|0]<<16|o[e+3|0]<<24),t[r+68>>2]=A,A=o[e+12|0]|o[e+13|0]<<8|(o[e+14|0]<<16|o[e+15|0]<<24),t[r+72>>2]=o[e+8|0]|o[e+9|0]<<8|(o[e+10|0]<<16|o[e+11|0]<<24),t[r+76>>2]=A,A=o[e+20|0]|o[e+21|0]<<8|(o[e+22|0]<<16|o[e+23|0]<<24),t[r+80>>2]=o[e+16|0]|o[e+17|0]<<8|(o[e+18|0]<<16|o[e+19|0]<<24),t[r+84>>2]=A,A=o[e+28|0]|o[e+29|0]<<8|(o[e+30|0]<<16|o[e+31|0]<<24),t[r+88>>2]=o[e+24|0]|o[e+25|0]<<8|(o[e+26|0]<<16|o[e+27|0]<<24),t[r+92>>2]=A,_=r+128|0,A=r- -64|0,H6(_,A),Me(_),e=t[r+156>>2],t[r+24>>2]=t[r+152>>2],t[r+28>>2]=e,e=t[r+148>>2],t[r+16>>2]=t[r+144>>2],t[r+20>>2]=e,e=t[r+140>>2],t[r+8>>2]=t[r+136>>2],t[r+12>>2]=e,e=t[r+132>>2],t[r>>2]=t[r+128>>2],t[r+4>>2]=e,t[r+120>>2]=0,t[r+124>>2]=0,t[r+112>>2]=0,t[r+116>>2]=0,t[r+104>>2]=0,t[r+108>>2]=0,t[r+96>>2]=0,t[r+100>>2]=0,e=o[n+4|0]|o[n+5|0]<<8|(o[n+6|0]<<16|o[n+7|0]<<24),t[r+64>>2]=o[n|0]|o[n+1|0]<<8|(o[n+2|0]<<16|o[n+3|0]<<24),t[r+68>>2]=e,e=o[n+12|0]|o[n+13|0]<<8|(o[n+14|0]<<16|o[n+15|0]<<24),t[r+72>>2]=o[n+8|0]|o[n+9|0]<<8|(o[n+10|0]<<16|o[n+11|0]<<24),t[r+76>>2]=e,e=o[n+20|0]|o[n+21|0]<<8|(o[n+22|0]<<16|o[n+23|0]<<24),t[r+80>>2]=o[n+16|0]|o[n+17|0]<<8|(o[n+18|0]<<16|o[n+19|0]<<24),t[r+84>>2]=e,e=o[n+28|0]|o[n+29|0]<<8|(o[n+30|0]<<16|o[n+31|0]<<24),t[r+88>>2]=o[n+24|0]|o[n+25|0]<<8|(o[n+26|0]<<16|o[n+27|0]<<24),t[r+92>>2]=e,t[r+56>>2]=0,t[r+60>>2]=0,t[r+48>>2]=0,t[r+52>>2]=0,t[r+40>>2]=0,t[r+44>>2]=0,t[r+32>>2]=0,t[r+36>>2]=0,N4(A,r),n=t[r+124>>2],t[r+184>>2]=t[r+120>>2],t[r+188>>2]=n,n=t[r+116>>2],t[r+176>>2]=t[r+112>>2],t[r+180>>2]=n,n=t[r+108>>2],t[r+168>>2]=t[r+104>>2],t[r+172>>2]=n,n=t[r+100>>2],t[r+160>>2]=t[r+96>>2],t[r+164>>2]=n,n=t[r+92>>2],t[r+152>>2]=t[r+88>>2],t[r+156>>2]=n,n=t[r+84>>2],t[r+144>>2]=t[r+80>>2],t[r+148>>2]=n,n=t[r+76>>2],t[r+136>>2]=t[r+72>>2],t[r+140>>2]=n,n=t[r+68>>2],t[r+128>>2]=t[r+64>>2],t[r+132>>2]=n,Me(_),e=t[r+156>>2],n=t[r+152>>2],f[i+24|0]=n,f[i+25|0]=n>>>8,f[i+26|0]=n>>>16,f[i+27|0]=n>>>24,f[i+28|0]=e,f[i+29|0]=e>>>8,f[i+30|0]=e>>>16,f[i+31|0]=e>>>24,e=t[r+148>>2],n=t[r+144>>2],f[i+16|0]=n,f[i+17|0]=n>>>8,f[i+18|0]=n>>>16,f[i+19|0]=n>>>24,f[i+20|0]=e,f[i+21|0]=e>>>8,f[i+22|0]=e>>>16,f[i+23|0]=e>>>24,e=t[r+140>>2],n=t[r+136>>2],f[i+8|0]=n,f[i+9|0]=n>>>8,f[i+10|0]=n>>>16,f[i+11|0]=n>>>24,f[i+12|0]=e,f[i+13|0]=e>>>8,f[i+14|0]=e>>>16,f[i+15|0]=e>>>24,e=t[r+132>>2],n=t[r+128>>2],f[i|0]=n,f[i+1|0]=n>>>8,f[i+2|0]=n>>>16,f[i+3|0]=n>>>24,f[i+4|0]=e,f[i+5|0]=e>>>8,f[i+6|0]=e>>>16,f[i+7|0]=e>>>24,N0(_,64),X=r+192|0}function l1(i){i=i|0;var n=0,e=0,r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0;e:{if(!i)break e;r=i-8|0,n=t[i-4>>2],i=n&-8,_=r+i|0;r:{if(n&1)break r;if(!(n&2)||(n=t[r>>2],r=r-n|0,r>>>0<R1[10177]))break e;i=i+n|0;t:{n:{A:{if(t[10178]!=(r|0)){if(e=t[r+12>>2],n>>>0<=255){if(A=t[r+8>>2],(A|0)!=(e|0))break A;u=40692,B=t[10173]&t0(-2,n>>>3|0),t[u>>2]=B;break r}if(h=t[r+24>>2],(e|0)!=(r|0)){n=t[r+8>>2],t[n+12>>2]=e,t[e+8>>2]=n;break t}if(A=t[r+20>>2],A)n=r+20|0;else{if(A=t[r+16>>2],!A)break n;n=r+16|0}for(;s=n,e=A,n=e+20|0,A=t[e+20>>2],!(!A&&(n=e+16|0,A=t[e+16>>2],!A)););t[s>>2]=0;break t}if(n=t[_+4>>2],(n&3)!=3)break r;t[10175]=i,t[_+4>>2]=n&-2,t[r+4>>2]=i|1,t[_>>2]=i;return}t[A+12>>2]=e,t[e+8>>2]=A;break r}e=0}if(!h)break r;n=t[r+28>>2],A=n<<2;t:{if(t[A+40996>>2]==(r|0)){if(t[A+40996>>2]=e,e)break t;u=40696,B=t[10174]&t0(-2,n),t[u>>2]=B;break r}n:{if(t[h+16>>2]==(r|0)){t[h+16>>2]=e;break n}t[h+20>>2]=e}if(!e)break r}if(t[e+24>>2]=h,n=t[r+16>>2],n&&(t[e+16>>2]=n,t[n+24>>2]=e),n=t[r+20>>2],!n)break r;t[e+20>>2]=n,t[n+24>>2]=e}if(r>>>0>=_>>>0||(n=t[_+4>>2],!(n&1)))break e;r:{t:{n:{A:{if(!(n&2)){if(t[10179]==(_|0)){if(t[10179]=r,i=t[10176]+i|0,t[10176]=i,t[r+4>>2]=i|1,t[10178]!=(r|0))break e;t[10175]=0,t[10178]=0;return}if(a=t[10178],(a|0)==(_|0)){t[10178]=r,i=t[10175]+i|0,t[10175]=i,t[r+4>>2]=i|1,t[i+r>>2]=i;return}if(i=(n&-8)+i|0,e=t[_+12>>2],n>>>0<=255){if(A=t[_+8>>2],(A|0)==(e|0)){u=40692,B=t[10173]&t0(-2,n>>>3|0),t[u>>2]=B;break t}t[A+12>>2]=e,t[e+8>>2]=A;break t}if(h=t[_+24>>2],(e|0)!=(_|0)){n=t[_+8>>2],t[n+12>>2]=e,t[e+8>>2]=n;break n}if(A=t[_+20>>2],A)n=_+20|0;else{if(A=t[_+16>>2],!A)break A;n=_+16|0}for(;s=n,e=A,n=e+20|0,A=t[e+20>>2],!(!A&&(n=e+16|0,A=t[e+16>>2],!A)););t[s>>2]=0;break n}t[_+4>>2]=n&-2,t[r+4>>2]=i|1,t[i+r>>2]=i;break r}e=0}if(!h)break t;n=t[_+28>>2],A=n<<2;n:{if(t[A+40996>>2]==(_|0)){if(t[A+40996>>2]=e,e)break n;u=40696,B=t[10174]&t0(-2,n),t[u>>2]=B;break t}A:{if(t[h+16>>2]==(_|0)){t[h+16>>2]=e;break A}t[h+20>>2]=e}if(!e)break t}if(t[e+24>>2]=h,n=t[_+16>>2],n&&(t[e+16>>2]=n,t[n+24>>2]=e),n=t[_+20>>2],!n)break t;t[e+20>>2]=n,t[n+24>>2]=e}if(t[r+4>>2]=i|1,t[i+r>>2]=i,(r|0)!=(a|0))break r;t[10175]=i;return}if(i>>>0<=255){n=(i&248)+40732|0,A=t[10173],i=1<<(i>>>3);r:{if(!(A&i)){t[10173]=i|A,i=n;break r}i=t[n+8>>2]}t[n+8>>2]=r,t[i+12>>2]=r,t[r+12>>2]=n,t[r+8>>2]=i;return}e=31,i>>>0<=16777215&&(n=de(i>>>8|0),e=(i>>>38-n&1|n<<1)^62),t[r+28>>2]=e,t[r+16>>2]=0,t[r+20>>2]=0,n=(e<<2)+40996|0;r:{t:{A=t[10174],s=1<<e;n:{if(!(A&s)){t[10174]=A|s,t[n>>2]=r,e=24;break n}for(e=i<<((e|0)!=31?25-(e>>>1|0)|0:0),n=t[n>>2];;){if(A=n,(t[n+4>>2]&-8)==(i|0))break t;if(n=e>>>29|0,e=e<<1,s=(n&4)+A|0,n=t[s+16>>2],!n)break}t[s+16>>2]=r,n=A,e=24}A=r,s=r,i=8;break r}n=t[A+8>>2],t[n+12>>2]=r,t[A+8>>2]=r,e=8,s=0,i=24}t[e+r>>2]=n,t[r+12>>2]=A,t[i+r>>2]=s,i=t[10181]-1|0,t[10181]=i||-1}}function Fi(i,n,e){var r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0;r=X-224|0,X=r,u=t[e+16>>2],A=e- -64|0,B=t[A>>2],v=t[e+80>>2],g=t[e+32>>2],w=t[e+48>>2],_=o[n+4|0]|o[n+5|0]<<8|(o[n+6|0]<<16|o[n+7|0]<<24),q=t[e+20>>2],S=t[e+68>>2],I=t[e+84>>2],D=t[e+36>>2],M=t[e+52>>2],s=o[n+8|0]|o[n+9|0]<<8|(o[n+10|0]<<16|o[n+11|0]<<24),Y=t[e+24>>2],N=t[e+72>>2],Q=t[e+88>>2],G=t[e+40>>2],K=t[e+56>>2],h=o[n|0]|o[n+1|0]<<8|(o[n+2|0]<<16|o[n+3|0]<<24),a=o[n+12|0]|o[n+13|0]<<8|(o[n+14|0]<<16|o[n+15|0]<<24),n=a^(t[e+44>>2]&t[e+60>>2]^(t[e+28>>2]^(t[e+92>>2]^t[e+76>>2]))),f[i+12|0]=n,f[i+13|0]=n>>>8,f[i+14|0]=n>>>16,f[i+15|0]=n>>>24,n=G&K^(N^Q^Y)^s,f[i+8|0]=n,f[i+9|0]=n>>>8,f[i+10|0]=n>>>16,f[i+11|0]=n>>>24,n=D&M^(S^I^q)^_,f[i+4|0]=n,f[i+5|0]=n>>>8,f[i+6|0]=n>>>16,f[i+7|0]=n>>>24,n=g&w^(u^(B^v))^h,f[i|0]=n,f[i+1|0]=n>>>8,f[i+2|0]=n>>>16,f[i+3|0]=n>>>24,i=t[e+92>>2],t[r+216>>2]=t[e+88>>2],t[r+220>>2]=i,i=t[e+84>>2],t[r+208>>2]=t[e+80>>2],t[r+212>>2]=i,i=t[A+4>>2],t[r+176>>2]=t[A>>2],t[r+180>>2]=i,i=t[e+76>>2],t[r+184>>2]=t[e+72>>2],t[r+188>>2]=i,i=t[e+84>>2],t[r+160>>2]=t[e+80>>2],t[r+164>>2]=i,i=t[e+92>>2],t[r+168>>2]=t[e+88>>2],t[r+172>>2]=i,i=r+192|0,H0(i,r+176|0,r+160|0),n=t[r+204>>2],t[e+88>>2]=t[r+200>>2],t[e+92>>2]=n,n=t[r+196>>2],t[e+80>>2]=t[r+192>>2],t[e+84>>2]=n,n=t[e+52>>2],t[r+144>>2]=t[e+48>>2],t[r+148>>2]=n,n=t[e+60>>2],t[r+152>>2]=t[e+56>>2],t[r+156>>2]=n,n=t[A+4>>2],t[r+128>>2]=t[A>>2],t[r+132>>2]=n,n=t[e+76>>2],t[r+136>>2]=t[e+72>>2],t[r+140>>2]=n,H0(i,r+144|0,r+128|0),n=t[r+204>>2],t[e+72>>2]=t[r+200>>2],t[e+76>>2]=n,n=t[r+196>>2],t[A>>2]=t[r+192>>2],t[A+4>>2]=n,n=t[e+36>>2],t[r+112>>2]=t[e+32>>2],t[r+116>>2]=n,n=t[e+44>>2],t[r+120>>2]=t[e+40>>2],t[r+124>>2]=n,n=t[e+52>>2],t[r+96>>2]=t[e+48>>2],t[r+100>>2]=n,n=t[e+60>>2],t[r+104>>2]=t[e+56>>2],t[r+108>>2]=n,H0(i,r+112|0,r+96|0),n=t[r+204>>2],t[e+56>>2]=t[r+200>>2],t[e+60>>2]=n,n=t[r+196>>2],t[e+48>>2]=t[r+192>>2],t[e+52>>2]=n,n=t[e+20>>2],t[r+80>>2]=t[e+16>>2],t[r+84>>2]=n,n=t[e+28>>2],t[r+88>>2]=t[e+24>>2],t[r+92>>2]=n,n=t[e+36>>2],t[r+64>>2]=t[e+32>>2],t[r+68>>2]=n,n=t[e+44>>2],t[r+72>>2]=t[e+40>>2],t[r+76>>2]=n,H0(i,r+80|0,r- -64|0),n=t[r+204>>2],t[e+40>>2]=t[r+200>>2],t[e+44>>2]=n,n=t[r+196>>2],t[e+32>>2]=t[r+192>>2],t[e+36>>2]=n,n=t[e+4>>2],t[r+48>>2]=t[e>>2],t[r+52>>2]=n,n=t[e+12>>2],t[r+56>>2]=t[e+8>>2],t[r+60>>2]=n,n=t[e+20>>2],t[r+32>>2]=t[e+16>>2],t[r+36>>2]=n,n=t[e+28>>2],t[r+40>>2]=t[e+24>>2],t[r+44>>2]=n,H0(i,r+48|0,r+32|0),n=t[r+204>>2],t[e+24>>2]=t[r+200>>2],t[e+28>>2]=n,n=t[r+196>>2],t[e+16>>2]=t[r+192>>2],t[e+20>>2]=n,n=t[r+212>>2],t[r+16>>2]=t[r+208>>2],t[r+20>>2]=n,n=t[r+220>>2],t[r+24>>2]=t[r+216>>2],t[r+28>>2]=n,n=t[e+4>>2],t[r>>2]=t[e>>2],t[r+4>>2]=n,n=t[e+12>>2],t[r+8>>2]=t[e+8>>2],t[r+12>>2]=n,H0(i,r+16|0,r),i=t[r+192>>2],n=t[r+196>>2],A=t[r+200>>2],t[e+12>>2]=a^t[r+204>>2],t[e+8>>2]=A^s,t[e+4>>2]=n^_,t[e>>2]=i^h,X=r+224|0}function Qi(i,n,e){var r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0;r=X-224|0,X=r,s=t[e+16>>2],A=e- -64|0,_=t[A>>2],u=t[e+80>>2],B=t[e+32>>2],v=t[e+48>>2],h=t[e+20>>2],g=t[e+68>>2],w=t[e+84>>2],q=o[n+4|0]|o[n+5|0]<<8|(o[n+6|0]<<16|o[n+7|0]<<24),S=t[e+36>>2],I=t[e+52>>2],a=t[e+24>>2],D=t[e+72>>2],M=t[e+88>>2],Y=o[n+8|0]|o[n+9|0]<<8|(o[n+10|0]<<16|o[n+11|0]<<24),N=t[e+40>>2],Q=t[e+56>>2],G=o[n|0]|o[n+1|0]<<8|(o[n+2|0]<<16|o[n+3|0]<<24),n=t[e+44>>2]&t[e+60>>2]^(t[e+28>>2]^(t[e+76>>2]^(t[e+92>>2]^(o[n+12|0]|o[n+13|0]<<8|(o[n+14|0]<<16|o[n+15|0]<<24))))),f[i+12|0]=n,f[i+13|0]=n>>>8,f[i+14|0]=n>>>16,f[i+15|0]=n>>>24,a=N&Q^(a^(M^Y^D)),f[i+8|0]=a,f[i+9|0]=a>>>8,f[i+10|0]=a>>>16,f[i+11|0]=a>>>24,h=S&I^(h^(w^q^g)),f[i+4|0]=h,f[i+5|0]=h>>>8,f[i+6|0]=h>>>16,f[i+7|0]=h>>>24,s=B&v^(s^(_^(u^G))),f[i|0]=s,f[i+1|0]=s>>>8,f[i+2|0]=s>>>16,f[i+3|0]=s>>>24,i=t[e+92>>2],t[r+216>>2]=t[e+88>>2],t[r+220>>2]=i,i=t[e+84>>2],t[r+208>>2]=t[e+80>>2],t[r+212>>2]=i,i=t[A+4>>2],t[r+176>>2]=t[A>>2],t[r+180>>2]=i,i=t[e+76>>2],t[r+184>>2]=t[e+72>>2],t[r+188>>2]=i,i=t[e+84>>2],t[r+160>>2]=t[e+80>>2],t[r+164>>2]=i,i=t[e+92>>2],t[r+168>>2]=t[e+88>>2],t[r+172>>2]=i,i=r+192|0,H0(i,r+176|0,r+160|0),_=t[r+204>>2],t[e+88>>2]=t[r+200>>2],t[e+92>>2]=_,_=t[r+196>>2],t[e+80>>2]=t[r+192>>2],t[e+84>>2]=_,_=t[e+52>>2],t[r+144>>2]=t[e+48>>2],t[r+148>>2]=_,_=t[e+60>>2],t[r+152>>2]=t[e+56>>2],t[r+156>>2]=_,_=t[A+4>>2],t[r+128>>2]=t[A>>2],t[r+132>>2]=_,_=t[e+76>>2],t[r+136>>2]=t[e+72>>2],t[r+140>>2]=_,H0(i,r+144|0,r+128|0),_=t[r+204>>2],t[e+72>>2]=t[r+200>>2],t[e+76>>2]=_,_=t[r+196>>2],t[A>>2]=t[r+192>>2],t[A+4>>2]=_,A=t[e+36>>2],t[r+112>>2]=t[e+32>>2],t[r+116>>2]=A,A=t[e+44>>2],t[r+120>>2]=t[e+40>>2],t[r+124>>2]=A,A=t[e+52>>2],t[r+96>>2]=t[e+48>>2],t[r+100>>2]=A,A=t[e+60>>2],t[r+104>>2]=t[e+56>>2],t[r+108>>2]=A,H0(i,r+112|0,r+96|0),A=t[r+204>>2],t[e+56>>2]=t[r+200>>2],t[e+60>>2]=A,A=t[r+196>>2],t[e+48>>2]=t[r+192>>2],t[e+52>>2]=A,A=t[e+20>>2],t[r+80>>2]=t[e+16>>2],t[r+84>>2]=A,A=t[e+28>>2],t[r+88>>2]=t[e+24>>2],t[r+92>>2]=A,A=t[e+36>>2],t[r+64>>2]=t[e+32>>2],t[r+68>>2]=A,A=t[e+44>>2],t[r+72>>2]=t[e+40>>2],t[r+76>>2]=A,H0(i,r+80|0,r- -64|0),A=t[r+204>>2],t[e+40>>2]=t[r+200>>2],t[e+44>>2]=A,A=t[r+196>>2],t[e+32>>2]=t[r+192>>2],t[e+36>>2]=A,A=t[e+4>>2],t[r+48>>2]=t[e>>2],t[r+52>>2]=A,A=t[e+12>>2],t[r+56>>2]=t[e+8>>2],t[r+60>>2]=A,A=t[e+20>>2],t[r+32>>2]=t[e+16>>2],t[r+36>>2]=A,A=t[e+28>>2],t[r+40>>2]=t[e+24>>2],t[r+44>>2]=A,H0(i,r+48|0,r+32|0),A=t[r+204>>2],t[e+24>>2]=t[r+200>>2],t[e+28>>2]=A,A=t[r+196>>2],t[e+16>>2]=t[r+192>>2],t[e+20>>2]=A,A=t[r+212>>2],t[r+16>>2]=t[r+208>>2],t[r+20>>2]=A,A=t[r+220>>2],t[r+24>>2]=t[r+216>>2],t[r+28>>2]=A,A=t[e+4>>2],t[r>>2]=t[e>>2],t[r+4>>2]=A,A=t[e+12>>2],t[r+8>>2]=t[e+8>>2],t[r+12>>2]=A,H0(i,r+16|0,r),i=t[r+192>>2],A=t[r+196>>2],_=t[r+200>>2],t[e+12>>2]=n^t[r+204>>2],t[e+8>>2]=_^a,t[e+4>>2]=A^h,t[e>>2]=i^s,X=r+224|0}function j6(i,n,e,r,A){var _=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0,z=0,$=0,V=0,W=0,e0=0,i0=0,o0=0,s0=0,h0=0,u0=0,y0=0,f0=0,B0=0,c0=0,j0=0,d0=0,w0=0,T0=0;e:{if(!r){G=1634760805,K=2036477234,z=857760878,$=1797285236;break e}K=o[r+8|0]|o[r+9|0]<<8|(o[r+10|0]<<16|o[r+11|0]<<24),z=o[r+4|0]|o[r+5|0]<<8|(o[r+6|0]<<16|o[r+7|0]<<24),G=o[r|0]|o[r+1|0]<<8|(o[r+2|0]<<16|o[r+3|0]<<24),$=o[r+12|0]|o[r+13|0]<<8|(o[r+14|0]<<16|o[r+15|0]<<24)}for(r=G,e0=o[e|0]|o[e+1|0]<<8|(o[e+2|0]<<16|o[e+3|0]<<24),B=e0,i0=o[e+4|0]|o[e+5|0]<<8|(o[e+6|0]<<16|o[e+7|0]<<24),q=i0,o0=o[e+8|0]|o[e+9|0]<<8|(o[e+10|0]<<16|o[e+11|0]<<24),s=o0,s0=o[e+12|0]|o[e+13|0]<<8|(o[e+14|0]<<16|o[e+15|0]<<24),_=s0,h=z,h0=o[n|0]|o[n+1|0]<<8|(o[n+2|0]<<16|o[n+3|0]<<24),v=h0,u0=o[n+4|0]|o[n+5|0]<<8|(o[n+6|0]<<16|o[n+7|0]<<24),a=u0,y0=o[n+8|0]|o[n+9|0]<<8|(o[n+10|0]<<16|o[n+11|0]<<24),S=y0,f0=o[n+12|0]|o[n+13|0]<<8|(o[n+14|0]<<16|o[n+15|0]<<24),g=f0,n=K,B0=o[e+16|0]|o[e+17|0]<<8|(o[e+18|0]<<16|o[e+19|0]<<24),w=B0,I=$,c0=o[e+28|0]|o[e+29|0]<<8|(o[e+30|0]<<16|o[e+31|0]<<24),M=c0,j0=o[e+24|0]|o[e+25|0]<<8|(o[e+26|0]<<16|o[e+27|0]<<24),D=j0,d0=o[e+20|0]|o[e+21|0]<<8|(o[e+22|0]<<16|o[e+23|0]<<24),e=d0;Y=t0(h+B|0,7)^g,V=t0(Y+h|0,9)^D,N=t0(e+r|0,7)^_,W=t0(N+r|0,9)^S,w0=t0(W+N|0,13)^e,Q=t0(w+I|0,7)^s,a=t0(Q+I|0,9)^a,s=t0(a+Q|0,13)^w,_=t0(a+s|0,18)^I,u=t0(n+v|0,7)^M,e=w0^t0(_+u|0,7),D=V^t0(e+_|0,9),M=t0(e+D|0,13)^u,I=t0(D+M|0,18)^_,g=u,u=t0(n+u|0,9)^q,_=t0(g+u|0,13)^v,n=t0(_+u|0,18)^n,w=t0(n+Y|0,7)^s,S=t0(w+n|0,9)^W,g=t0(w+S|0,13)^Y,n=t0(S+g|0,18)^n,s=t0(Y+V|0,13)^B,h=t0(s+V|0,18)^h,v=t0(h+N|0,7)^_,a=t0(v+h|0,9)^a,_=t0(a+v|0,13)^N,h=t0(a+_|0,18)^h,r=t0(W+w0|0,18)^r,B=t0(r+Q|0,7)^s,q=t0(B+r|0,9)^u,s=t0(B+q|0,13)^Q,r=t0(q+s|0,18)^r,T0=T0+2|0,T0>>>0<A>>>0;);A=I+$|0,f[i+60|0]=A,f[i+61|0]=A>>>8,f[i+62|0]=A>>>16,f[i+63|0]=A>>>24,A=M+c0|0,f[i+56|0]=A,f[i+57|0]=A>>>8,f[i+58|0]=A>>>16,f[i+59|0]=A>>>24,A=D+j0|0,f[i+52|0]=A,f[i+53|0]=A>>>8,f[i+54|0]=A>>>16,f[i+55|0]=A>>>24,e=e+d0|0,f[i+48|0]=e,f[i+49|0]=e>>>8,f[i+50|0]=e>>>16,f[i+51|0]=e>>>24,e=w+B0|0,f[i+44|0]=e,f[i+45|0]=e>>>8,f[i+46|0]=e>>>16,f[i+47|0]=e>>>24,n=n+K|0,f[i+40|0]=n,f[i+41|0]=n>>>8,f[i+42|0]=n>>>16,f[i+43|0]=n>>>24,n=g+f0|0,f[i+36|0]=n,f[i+37|0]=n>>>8,f[i+38|0]=n>>>16,f[i+39|0]=n>>>24,n=S+y0|0,f[i+32|0]=n,f[i+33|0]=n>>>8,f[i+34|0]=n>>>16,f[i+35|0]=n>>>24,n=a+u0|0,f[i+28|0]=n,f[i+29|0]=n>>>8,f[i+30|0]=n>>>16,f[i+31|0]=n>>>24,n=v+h0|0,f[i+24|0]=n,f[i+25|0]=n>>>8,f[i+26|0]=n>>>16,f[i+27|0]=n>>>24,n=h+z|0,f[i+20|0]=n,f[i+21|0]=n>>>8,f[i+22|0]=n>>>16,f[i+23|0]=n>>>24,n=_+s0|0,f[i+16|0]=n,f[i+17|0]=n>>>8,f[i+18|0]=n>>>16,f[i+19|0]=n>>>24,n=s+o0|0,f[i+12|0]=n,f[i+13|0]=n>>>8,f[i+14|0]=n>>>16,f[i+15|0]=n>>>24,n=q+i0|0,f[i+8|0]=n,f[i+9|0]=n>>>8,f[i+10|0]=n>>>16,f[i+11|0]=n>>>24,n=B+e0|0,f[i+4|0]=n,f[i+5|0]=n>>>8,f[i+6|0]=n>>>16,f[i+7|0]=n>>>24,n=r+G|0,f[i|0]=n,f[i+1|0]=n>>>8,f[i+2|0]=n>>>16,f[i+3|0]=n>>>24}function Oi(i,n,e,r,A,_,s,h,a){var u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0;if(n-65>>>0<4294967232|s>>>0>64)i=-1;else{u=X,I=u,u=u-512&-64,X=u;e:{r:{if(!(!(r|A)|e)|(!i|(n-65&255)>>>0<=191)|(!(!s||_)|s>>>0>=65))break r;t:{if(s){if(!_)break r;n:{if(!h){g=725511199,w=-1694144372,v=-1377402159,h=1359893119;break n}g=(o[h+8|0]|o[h+9|0]<<8|(o[h+10|0]<<16|o[h+11|0]<<24))^725511199,w=(o[h+12|0]|o[h+13|0]<<8|(o[h+14|0]<<16|o[h+15|0]<<24))^-1694144372,v=(o[h|0]|o[h+1|0]<<8|(o[h+2|0]<<16|o[h+3|0]<<24))^-1377402159,h=(o[h+4|0]|o[h+5|0]<<8|(o[h+6|0]<<16|o[h+7|0]<<24))^1359893119}n:{if(!a){B=327033209,q=1541459225,S=-79577749,a=528734635;break n}B=(o[a+8|0]|o[a+9|0]<<8|(o[a+10|0]<<16|o[a+11|0]<<24))^327033209,q=(o[a+12|0]|o[a+13|0]<<8|(o[a+14|0]<<16|o[a+15|0]<<24))^1541459225,S=(o[a|0]|o[a+1|0]<<8|(o[a+2|0]<<16|o[a+3|0]<<24))^-79577749,a=(o[a+4|0]|o[a+5|0]<<8|(o[a+6|0]<<16|o[a+7|0]<<24))^528734635}k2(u- -64|0,0,293),t[u+56>>2]=B,t[u+60>>2]=q,t[u+48>>2]=S,t[u+52>>2]=a,t[u+40>>2]=g,t[u+44>>2]=w,t[u+32>>2]=v,t[u+36>>2]=h,t[u+24>>2]=1595750129,t[u+28>>2]=-1521486534,t[u+16>>2]=-23791573,t[u+20>>2]=1013904242,t[u+8>>2]=-2067093701,t[u+12>>2]=-1150833019,t[u>>2]=(s<<8|n)^-222443256,t[u+4>>2]=s>>>24^1779033703,h=128,a=128-s|0,a&&k2((u+384|0)+s|0,0,a),s&&_2(u+384|0,_,s),_=u+384|0,_2(u+96|0,_,128),t[u+352>>2]=128,N0(_,128);break t}n:{if(!h){g=725511199,w=-1694144372,s=1359893119,_=-1377402159;break n}g=(o[h+8|0]|o[h+9|0]<<8|(o[h+10|0]<<16|o[h+11|0]<<24))^725511199,w=(o[h+12|0]|o[h+13|0]<<8|(o[h+14|0]<<16|o[h+15|0]<<24))^-1694144372,s=(o[h+4|0]|o[h+5|0]<<8|(o[h+6|0]<<16|o[h+7|0]<<24))^1359893119,_=(o[h|0]|o[h+1|0]<<8|(o[h+2|0]<<16|o[h+3|0]<<24))^-1377402159}n:{if(!a){B=327033209,q=1541459225,v=-79577749,a=528734635;break n}B=(o[a+8|0]|o[a+9|0]<<8|(o[a+10|0]<<16|o[a+11|0]<<24))^327033209,q=(o[a+12|0]|o[a+13|0]<<8|(o[a+14|0]<<16|o[a+15|0]<<24))^1541459225,v=(o[a|0]|o[a+1|0]<<8|(o[a+2|0]<<16|o[a+3|0]<<24))^-79577749,a=(o[a+4|0]|o[a+5|0]<<8|(o[a+6|0]<<16|o[a+7|0]<<24))^528734635}h=0,k2(u- -64|0,0,293),t[u+56>>2]=B,t[u+60>>2]=q,t[u+48>>2]=v,t[u+52>>2]=a,t[u+40>>2]=g,t[u+44>>2]=w,t[u+32>>2]=_,t[u+36>>2]=s,t[u+24>>2]=1595750129,t[u+28>>2]=-1521486534,t[u+16>>2]=-23791573,t[u+20>>2]=1013904242,t[u+8>>2]=-2067093701,t[u+12>>2]=-1150833019,t[u>>2]=n^-222443256,t[u+4>>2]=1779033703}if(r|A){if(v=u+96|0,_=256-h|0,g=_,!A&r>>>0>_>>>0|A)for(w=u+224|0;_&&_2(h+v|0,e,_),t[u+352>>2]=t[u+352>>2]+_,s=t[u+68>>2],a=s,h=t[u+64>>2],B=h+128|0,s=B>>>0<128?a+1|0:a,t[u+64>>2]=B,t[u+68>>2]=s,s=t[u+76>>2],h=(a|0)==-1&h>>>0>4294967167,a=h,h=h+t[u+72>>2]|0,s=a>>>0>h>>>0?s+1|0:s,t[u+72>>2]=h,t[u+76>>2]=s,jt(u,v),_2(v,w,128),B=t[u+352>>2],h=B-128|0,t[u+352>>2]=h,e=e+_|0,s=g,a=r-s|0,_=384-B|0,g=_,A=A-(r>>>0<s>>>0)|0,r=a,!!(!A&a>>>0>_>>>0|A););r&&_2(h+v|0,e,r),t[u+352>>2]=r+t[u+352>>2]}v6(u,i,n),X=I;break e}Q2(),C2()}i=0}return i}function Xi(i,n){var e=0,r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0;_=i+n|0,e=t[i+4>>2];e:{r:{if(e&1)break r;if(!(e&2))break e;e=t[i>>2],n=e+n|0;t:{n:{A:{if(i=i-e|0,(i|0)!=t[10178]){if(r=t[i+12>>2],e>>>0<=255){if(A=t[i+8>>2],(A|0)!=(r|0))break A;u=40692,B=t[10173]&t0(-2,e>>>3|0),t[u>>2]=B;break r}if(s=t[i+24>>2],(i|0)!=(r|0)){e=t[i+8>>2],t[e+12>>2]=r,t[r+8>>2]=e;break t}if(A=t[i+20>>2],A)e=i+20|0;else{if(A=t[i+16>>2],!A)break n;e=i+16|0}for(;h=e,r=A,e=r+20|0,A=t[r+20>>2],!(!A&&(e=r+16|0,A=t[r+16>>2],!A)););t[h>>2]=0;break t}if(e=t[_+4>>2],(e&3)!=3)break r;t[10175]=n,t[_+4>>2]=e&-2,t[i+4>>2]=n|1,t[_>>2]=n;return}t[A+12>>2]=r,t[r+8>>2]=A;break r}r=0}if(!s)break r;e=t[i+28>>2],A=e<<2;t:{if(t[A+40996>>2]==(i|0)){if(t[A+40996>>2]=r,r)break t;u=40696,B=t[10174]&t0(-2,e),t[u>>2]=B;break r}n:{if(t[s+16>>2]==(i|0)){t[s+16>>2]=r;break n}t[s+20>>2]=r}if(!r)break r}if(t[r+24>>2]=s,e=t[i+16>>2],e&&(t[r+16>>2]=e,t[e+24>>2]=r),e=t[i+20>>2],!e)break r;t[r+20>>2]=e,t[e+24>>2]=r}r:{t:{n:{A:{if(e=t[_+4>>2],!(e&2)){if(t[10179]==(_|0)){if(t[10179]=i,n=t[10176]+n|0,t[10176]=n,t[i+4>>2]=n|1,t[10178]!=(i|0))break e;t[10175]=0,t[10178]=0;return}if(a=t[10178],(a|0)==(_|0)){t[10178]=i,n=t[10175]+n|0,t[10175]=n,t[i+4>>2]=n|1,t[i+n>>2]=n;return}if(n=(e&-8)+n|0,r=t[_+12>>2],e>>>0<=255){if(A=t[_+8>>2],(A|0)==(r|0)){u=40692,B=t[10173]&t0(-2,e>>>3|0),t[u>>2]=B;break t}t[A+12>>2]=r,t[r+8>>2]=A;break t}if(s=t[_+24>>2],(r|0)!=(_|0)){e=t[_+8>>2],t[e+12>>2]=r,t[r+8>>2]=e;break n}if(A=t[_+20>>2],A)e=_+20|0;else{if(A=t[_+16>>2],!A)break A;e=_+16|0}for(;h=e,r=A,e=r+20|0,A=t[r+20>>2],!(!A&&(e=r+16|0,A=t[r+16>>2],!A)););t[h>>2]=0;break n}t[_+4>>2]=e&-2,t[i+4>>2]=n|1,t[i+n>>2]=n;break r}r=0}if(!s)break t;e=t[_+28>>2],A=e<<2;n:{if(t[A+40996>>2]==(_|0)){if(t[A+40996>>2]=r,r)break n;u=40696,B=t[10174]&t0(-2,e),t[u>>2]=B;break t}A:{if(t[s+16>>2]==(_|0)){t[s+16>>2]=r;break A}t[s+20>>2]=r}if(!r)break t}if(t[r+24>>2]=s,e=t[_+16>>2],e&&(t[r+16>>2]=e,t[e+24>>2]=r),e=t[_+20>>2],!e)break t;t[r+20>>2]=e,t[e+24>>2]=r}if(t[i+4>>2]=n|1,t[i+n>>2]=n,(i|0)!=(a|0))break r;t[10175]=n;return}if(n>>>0<=255){e=(n&248)+40732|0,r=t[10173],n=1<<(n>>>3);r:{if(!(r&n)){t[10173]=n|r,n=e;break r}n=t[e+8>>2]}t[e+8>>2]=i,t[n+12>>2]=i,t[i+12>>2]=e,t[i+8>>2]=n;return}r=31,n>>>0<=16777215&&(e=de(n>>>8|0),r=(n>>>38-e&1|e<<1)^62),t[i+28>>2]=r,t[i+16>>2]=0,t[i+20>>2]=0,e=(r<<2)+40996|0;r:{A=t[10174],h=1<<r;t:{if(!(A&h)){t[10174]=A|h,t[e>>2]=i,t[i+24>>2]=e;break t}for(r=n<<((r|0)!=31?25-(r>>>1|0)|0:0),e=t[e>>2];;){if(A=e,(t[e+4>>2]&-8)==(n|0))break r;if(e=r>>>29|0,r=r<<1,h=A+(e&4)|0,e=t[h+16>>2],!e)break}t[h+16>>2]=i,t[i+24>>2]=A}t[i+12>>2]=i,t[i+8>>2]=i;return}n=t[A+8>>2],t[n+12>>2]=i,t[A+8>>2]=i,t[i+24>>2]=0,t[i+12>>2]=A,t[i+8>>2]=n}}function U5(i,n,e,r,A,_,s,h,a,u){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0,_=_|0,s=s|0,h=h|0,a=a|0,u=u|0;var B=0,v=0,g=0,w=0,q=0,S=0,I=0;B=X-400|0,X=B,e&&(t[e>>2]=0,t[e+4>>2]=0),r&&(f[r|0]=255),S=a,a=u,u=-1,g=_;e:{r:{v=g>>>0<17,_=s;t:{if(v&!s)break t;if(v=s-v|0,I=v,s=g-17|0,!v&s>>>0>=4294967279|v)break r;if(w=B+32|0,q=i+32|0,rr(w,64,0,q,i),v=B+96|0,re(v,w),N0(w,64),m2(v,h,S,a),m2(v,39312,0-S&15,0),t[B+88>>2]=0,t[B+92>>2]=0,t[B+80>>2]=0,t[B+84>>2]=0,t[B+72>>2]=0,t[B+76>>2]=0,t[B+64>>2]=0,t[B+68>>2]=0,t[B+56>>2]=0,t[B+60>>2]=0,t[B+48>>2]=0,t[B+52>>2]=0,t[B+40>>2]=0,t[B+44>>2]=0,t[B+32>>2]=0,t[B+36>>2]=0,f[B+32|0]=o[A|0],jr(w,w,64,0,q,1,i),h=o[B+32|0],f[B+32|0]=o[A|0],m2(v,w,64,0),A=A+1|0,m2(v,A,s,I),m2(v,39312,g-1&15,0),t[B+24>>2]=S,t[B+28>>2]=a,a=B+24|0,m2(v,a,8,0),g=g+47|0,_=g>>>0<47?_+1|0:_,t[B+24>>2]=g,t[B+28>>2]=_,m2(v,a,8,0),te(v,B),N0(v,256),kr(B,A+s|0,16)){N0(B,16);break t}jr(n,A,s,I,q,2,i),f[i+36|0]=o[i+36|0]^o[B|0],f[i+37|0]=o[i+37|0]^o[B+1|0],f[i+38|0]=o[i+38|0]^o[B+2|0],f[i+39|0]=o[i+39|0]^o[B+3|0],f[i+40|0]=o[i+40|0]^o[B+4|0],f[i+41|0]=o[i+41|0]^o[B+5|0],f[i+42|0]=o[i+42|0]^o[B+6|0],f[i+43|0]=o[i+43|0]^o[B+7|0],I4(q);n:{if(!(h&2)&&!j1(q,4))break n;n=o[i+28|0]|o[i+29|0]<<8|(o[i+30|0]<<16|o[i+31|0]<<24),t[B+376>>2]=o[i+24|0]|o[i+25|0]<<8|(o[i+26|0]<<16|o[i+27|0]<<24),t[B+380>>2]=n,n=o[i+20|0]|o[i+21|0]<<8|(o[i+22|0]<<16|o[i+23|0]<<24),t[B+368>>2]=o[i+16|0]|o[i+17|0]<<8|(o[i+18|0]<<16|o[i+19|0]<<24),t[B+372>>2]=n,n=o[i+12|0]|o[i+13|0]<<8|(o[i+14|0]<<16|o[i+15|0]<<24),t[B+360>>2]=o[i+8|0]|o[i+9|0]<<8|(o[i+10|0]<<16|o[i+11|0]<<24),t[B+364>>2]=n,n=o[i+4|0]|o[i+5|0]<<8|(o[i+6|0]<<16|o[i+7|0]<<24),t[B+352>>2]=o[i|0]|o[i+1|0]<<8|(o[i+2|0]<<16|o[i+3|0]<<24),t[B+356>>2]=n,n=o[i+40|0]|o[i+41|0]<<8|(o[i+42|0]<<16|o[i+43|0]<<24),t[B+384>>2]=o[i+36|0]|o[i+37|0]<<8|(o[i+38|0]<<16|o[i+39|0]<<24),t[B+388>>2]=n,n=B+352|0,xn(n,n,40,0,q,i),n=t[B+380>>2],A=t[B+376>>2],f[i+24|0]=A,f[i+25|0]=A>>>8,f[i+26|0]=A>>>16,f[i+27|0]=A>>>24,f[i+28|0]=n,f[i+29|0]=n>>>8,f[i+30|0]=n>>>16,f[i+31|0]=n>>>24,n=t[B+372>>2],A=t[B+368>>2],f[i+16|0]=A,f[i+17|0]=A>>>8,f[i+18|0]=A>>>16,f[i+19|0]=A>>>24,f[i+20|0]=n,f[i+21|0]=n>>>8,f[i+22|0]=n>>>16,f[i+23|0]=n>>>24,n=t[B+364>>2],A=t[B+360>>2],f[i+8|0]=A,f[i+9|0]=A>>>8,f[i+10|0]=A>>>16,f[i+11|0]=A>>>24,f[i+12|0]=n,f[i+13|0]=n>>>8,f[i+14|0]=n>>>16,f[i+15|0]=n>>>24,n=t[B+356>>2],A=t[B+352>>2],f[i|0]=A,f[i+1|0]=A>>>8,f[i+2|0]=A>>>16,f[i+3|0]=A>>>24,f[i+4|0]=n,f[i+5|0]=n>>>8,f[i+6|0]=n>>>16,f[i+7|0]=n>>>24,n=t[B+384>>2],A=t[B+388>>2],f[i+32|0]=1,f[i+33|0]=0,f[i+34|0]=0,f[i+35|0]=0,f[i+36|0]=n,f[i+37|0]=n>>>8,f[i+38|0]=n>>>16,f[i+39|0]=n>>>24,f[i+40|0]=A,f[i+41|0]=A>>>8,f[i+42|0]=A>>>16,f[i+43|0]=A>>>24}if(e&&(t[e>>2]=s,t[e+4>>2]=I),u=0,!r)break t;f[r|0]=h}X=B+400|0;break e}Q2(),C2()}return u|0}function Gi(i,n,e,r,A,_,s){var h=0,a=0,u=0,B=0,v=0;h=X+-64|0,X=h,v=U1(32);e:{if(!v){i=-22;break e}t[h+28>>2]=0,t[h+32>>2]=0,t[h+24>>2]=16,t[h+20>>2]=A,t[h+16>>2]=r,t[h+12>>2]=e,t[h+8>>2]=32,t[h+4>>2]=v,t[h+36>>2]=0,t[h+40>>2]=0,t[h+60>>2]=0,t[h+56>>2]=1,t[h+52>>2]=1,t[h+48>>2]=n,t[h+44>>2]=i,i=kn(h+4|0,s);r:{if(i){N0(v,32);break r}t:{if(!_)break t;a=h+4|0,A=X-32|0,X=A,i=-31;n:{A:{i:switch(s-1|0){case 1:i=o[1439]|o[1440]<<8|(o[1441]<<16|o[1442]<<24),n=o[1435]|o[1436]<<8|(o[1437]<<16|o[1438]<<24),f[_+5|0]=n,f[_+6|0]=n>>>8,f[_+7|0]=n>>>16,f[_+8|0]=n>>>24,f[_+9|0]=i,f[_+10|0]=i>>>8,f[_+11|0]=i>>>16,f[_+12|0]=i>>>24,i=o[1434]|o[1435]<<8|(o[1436]<<16|o[1437]<<24),n=o[1430]|o[1431]<<8|(o[1432]<<16|o[1433]<<24),f[_|0]=n,f[_+1|0]=n>>>8,f[_+2|0]=n>>>16,f[_+3|0]=n>>>24,f[_+4|0]=i,f[_+5|0]=i>>>8,f[_+6|0]=i>>>16,f[_+7|0]=i>>>24,e=-12,n=12;break A;case 0:break i;default:break n}i=o[1426]|o[1427]<<8|(o[1428]<<16|o[1429]<<24),f[_+8|0]=i,f[_+9|0]=i>>>8,f[_+10|0]=i>>>16,f[_+11|0]=i>>>24,i=o[1422]|o[1423]<<8|(o[1424]<<16|o[1425]<<24),n=o[1418]|o[1419]<<8|(o[1420]<<16|o[1421]<<24),f[_|0]=n,f[_+1|0]=n>>>8,f[_+2|0]=n>>>16,f[_+3|0]=n>>>24,f[_+4|0]=i,f[_+5|0]=i>>>8,f[_+6|0]=i>>>16,f[_+7|0]=i>>>24,e=-11,n=11}if(i=C6(a),i)break n;f[A+13|0]=0,f[A+11|0]=49,f[A+12|0]=57;A:{if(e=e+128|0,r=A+11|0,i=ee(r),e>>>0<=i>>>0||(n=n+_|0,s=i+1|0,s&&_2(n,r,s),u=e-i|0,u>>>0<4))break A;for(s=i+n|0,f[s|0]=36,f[s+1|0]=109,f[s+2|0]=61,f[s+3|0]=0,i=t[a+44>>2],n=10;;){i:{if(e=n,n=n-1|0,B=n+(A+22|0)|0,r=(i>>>0)/10|0,f[B|0]=i-i2(r,10)|48,i>>>0<10)break i;if(i=r,n)continue}break}if(i=11-e|0,i&&_2(A+11|0,B,i),n=A+11|0,f[n+i|0]=0,r=u-3|0,i=ee(n),r>>>0<=i>>>0||(e=s+3|0,s=i+1|0,s&&_2(e,n,s),u=r-i|0,u>>>0<4))break A;for(s=i+e|0,f[s|0]=44,f[s+1|0]=116,f[s+2|0]=61,f[s+3|0]=0,i=t[a+40>>2],n=10;;){i:{if(e=n,n=n-1|0,B=n+(A+22|0)|0,r=(i>>>0)/10|0,f[B|0]=i-i2(r,10)|48,i>>>0<10)break i;if(i=r,n)continue}break}if(i=11-e|0,i&&_2(A+11|0,B,i),n=A+11|0,f[n+i|0]=0,r=u-3|0,i=ee(n),r>>>0<=i>>>0||(e=s+3|0,s=i+1|0,s&&_2(e,n,s),u=r-i|0,u>>>0<4))break A;for(s=i+e|0,f[s|0]=44,f[s+1|0]=112,f[s+2|0]=61,f[s+3|0]=0,i=t[a+48>>2],n=10;;){i:{if(e=n,n=n-1|0,B=n+(A+22|0)|0,r=(i>>>0)/10|0,f[B|0]=i-i2(r,10)|48,i>>>0<10)break i;if(i=r,n)continue}break}if(i=11-e|0,i&&_2(A+11|0,B,i),n=A+11|0,f[n+i|0]=0,r=u-3|0,i=ee(n),r>>>0<=i>>>0||(e=s+3|0,s=i+1|0,s&&_2(e,n,s),r=r-i|0,r>>>0<2)||(i=i+e|0,f[i|0]=36,f[i+1|0]=0,n=i+1|0,e=r-1|0,!I6(n,e,t[a+16>>2],t[a+20>>2],3)))break A;if(i=-31,r=e,e=ee(n),r=r-e|0,r>>>0<2)break n;i=n+e|0,f[i|0]=36,f[i+1|0]=0,i=I6(i+1|0,r-1|0,t[a>>2],t[a+4>>2],3)?0:-31;break n}i=-31}if(X=A+32|0,!i)break t;N0(v,32),N0(_,128),i=-31;break r}N0(v,32),i=0}l1(v)}return X=h- -64|0,i}function Or(i,n){var e=0,r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0,z=0;return e=X-512|0,X=e,r=-1,_=o[n+31|0],A=o[n|0],(((((_^-1)&127|o[n+1|0]&(o[n+2|0]&(o[n+3|0]&(o[n+4|0]&(o[n+5|0]&(o[n+6|0]&(o[n+7|0]&(o[n+8|0]&(o[n+9|0]&(o[n+10|0]&(o[n+11|0]&(o[n+12|0]&(o[n+13|0]&(o[n+14|0]&(o[n+15|0]&(o[n+16|0]&(o[n+17|0]&(o[n+18|0]&(o[n+19|0]&(o[n+20|0]&(o[n+21|0]&(o[n+22|0]&(o[n+23|0]&(o[n+24|0]&(o[n+25|0]&(o[n+26|0]&(o[n+27|0]&(o[n+28|0]&(o[n+29|0]&o[n+30|0]))))))))))))))))))))))))))))^-1)&255)-1&236-A)>>>8|(A|o[41218]>>>2^_>>>7))&1||(_=e+336|0,ar(_,n),U(e+288|0,_),n=t[e+324>>2],t[e+276>>2]=0-n,r=t[e+320>>2],t[e+272>>2]=0-r,A=t[e+316>>2],t[e+268>>2]=0-A,s=t[e+312>>2],t[e+264>>2]=0-s,h=t[e+308>>2],t[e+260>>2]=0-h,a=t[e+304>>2],t[e+256>>2]=0-a,u=t[e+300>>2],t[e+252>>2]=0-u,B=t[e+296>>2],t[e+248>>2]=0-B,v=t[e+292>>2],t[e+244>>2]=0-v,g=t[e+288>>2],t[e+240>>2]=1-g,w=e+144|0,I=e+240|0,U(w,I),t[e+228>>2]=n,t[e+224>>2]=r,t[e+220>>2]=A,t[e+216>>2]=s,t[e+212>>2]=h,t[e+208>>2]=a,t[e+204>>2]=u,t[e+200>>2]=B,t[e+196>>2]=v,t[e+192>>2]=g+1,r=e+96|0,s=e+192|0,U(r,s),n=e+48|0,A0(n,1584,w),A=t[e+96>>2],h=t[e+48>>2],a=t[e+100>>2],u=t[e+52>>2],B=t[e+104>>2],v=t[e+56>>2],g=t[e+108>>2],w=t[e+60>>2],q=t[e+112>>2],S=t[e+64>>2],D=t[e+116>>2],M=t[e+68>>2],Y=t[e+120>>2],N=t[e+72>>2],Q=t[e+124>>2],G=t[e+76>>2],K=t[e+128>>2],z=t[e+80>>2],t[e+84>>2]=0-(t[e+84>>2]+t[e+132>>2]|0),t[e+80>>2]=0-(K+z|0),t[e+76>>2]=0-(Q+G|0),t[e+72>>2]=0-(Y+N|0),t[e+68>>2]=0-(D+M|0),t[e+64>>2]=0-(q+S|0),t[e+60>>2]=0-(g+w|0),t[e+56>>2]=0-(B+v|0),t[e+52>>2]=0-(a+u|0),t[e+48>>2]=0-(A+h|0),A0(e,n,r),t[e+388>>2]=0,t[e+392>>2]=0,t[e+384>>2]=1,t[e+396>>2]=0,t[e+400>>2]=0,t[e+404>>2]=0,t[e+408>>2]=0,t[e+412>>2]=0,t[e+416>>2]=0,t[e+420>>2]=0,A=e+432|0,S=q6(A,e+384|0,e),A0(i,A,s),r=i+40|0,A0(r,A,i),A0(r,r,n),A0(i,i,_),_=t[i+36>>2]<<1,t[i+36>>2]=_,A=t[i+32>>2]<<1,t[i+32>>2]=A,s=t[i+28>>2]<<1,t[i+28>>2]=s,h=t[i+24>>2]<<1,t[i+24>>2]=h,a=t[i+20>>2]<<1,t[i+20>>2]=a,u=t[i+16>>2]<<1,t[i+16>>2]=u,B=t[i+12>>2]<<1,t[i+12>>2]=B,v=t[i+8>>2]<<1,t[i+8>>2]=v,g=t[i+4>>2]<<1,t[i+4>>2]=g,w=t[i>>2]<<1,t[i>>2]=w,q=e+480|0,V2(q,i),n=0-(f[e+480|0]&1)|0,t[i+36>>2]=_^n&(_^0-_),t[i+32>>2]=A^n&(A^0-A),t[i+28>>2]=s^n&(s^0-s),t[i+24>>2]=h^n&(h^0-h),t[i+20>>2]=a^n&(a^0-a),t[i+16>>2]=u^n&(u^0-u),t[i+12>>2]=B^n&(B^0-B),t[i+8>>2]=v^n&(v^0-v),t[i+4>>2]=g^n&(g^0-g),t[i>>2]=w^n&(w^0-w),A0(r,I,r),t[i+84>>2]=0,t[i+88>>2]=0,t[i+80>>2]=1,t[i+92>>2]=0,t[i+96>>2]=0,t[i+100>>2]=0,t[i+104>>2]=0,t[i+108>>2]=0,t[i+112>>2]=0,t[i+116>>2]=0,n=i+120|0,A0(n,i,r),V2(q,n),i=o[e+480|0],V2(q,r),r=0-(j1(q,32)|(1-S|i&1))|0),X=e+512|0,r}function K5(i,n,e,r,A,_,s,h,a,u){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0,_=_|0,s=s|0,h=h|0,a=a|0,u=u|0;var B=0,v=0,g=0,w=0,q=0,S=0;B=X-384|0,X=B,e&&(t[e>>2]=0,t[e+4>>2]=0);e:{if(g=0|A,!_&g>>>0<4294967279){w=B+16|0,A=i+32|0,rr(w,64,0,A,i),v=B+80|0,re(v,w),N0(w,64),q=s,s=h|S,m2(v,q,s,a),m2(v,39312,0-s&15,0),t[B+16>>2]=0,t[B+20>>2]=0,t[B+72>>2]=0,t[B+76>>2]=0,t[B+64>>2]=0,t[B+68>>2]=0,t[B+56>>2]=0,t[B+60>>2]=0,t[B+48>>2]=0,t[B+52>>2]=0,t[B+40>>2]=0,t[B+44>>2]=0,t[B+32>>2]=0,t[B+36>>2]=0,t[B+24>>2]=0,t[B+28>>2]=0,f[B+16|0]=u,jr(w,w,64,0,A,1,i),m2(v,w,64,0),f[n|0]=o[B+16|0],n=n+1|0,jr(n,r,g,_,A,2,i),m2(v,n,g,_),m2(v,39312,g&15,0),t[B+8>>2]=s,t[B+12>>2]=a,r=B+8|0,m2(v,r,8,0),t[B+8>>2]=g- -64,t[B+12>>2]=_-((g>>>0<4294967232)-1|0),m2(v,r,8,0),n=n+g|0,te(v,n),N0(v,256),f[i+36|0]=o[i+36|0]^o[n|0],f[i+37|0]=o[i+37|0]^o[n+1|0],f[i+38|0]=o[i+38|0]^o[n+2|0],f[i+39|0]=o[i+39|0]^o[n+3|0],f[i+40|0]=o[i+40|0]^o[n+4|0],f[i+41|0]=o[i+41|0]^o[n+5|0],f[i+42|0]=o[i+42|0]^o[n+6|0],f[i+43|0]=o[i+43|0]^o[n+7|0],I4(A);r:{if(!(u&2)&&!j1(A,4))break r;n=o[i+28|0]|o[i+29|0]<<8|(o[i+30|0]<<16|o[i+31|0]<<24),t[B+360>>2]=o[i+24|0]|o[i+25|0]<<8|(o[i+26|0]<<16|o[i+27|0]<<24),t[B+364>>2]=n,n=o[i+20|0]|o[i+21|0]<<8|(o[i+22|0]<<16|o[i+23|0]<<24),t[B+352>>2]=o[i+16|0]|o[i+17|0]<<8|(o[i+18|0]<<16|o[i+19|0]<<24),t[B+356>>2]=n,n=o[i+12|0]|o[i+13|0]<<8|(o[i+14|0]<<16|o[i+15|0]<<24),t[B+344>>2]=o[i+8|0]|o[i+9|0]<<8|(o[i+10|0]<<16|o[i+11|0]<<24),t[B+348>>2]=n,n=o[i+4|0]|o[i+5|0]<<8|(o[i+6|0]<<16|o[i+7|0]<<24),t[B+336>>2]=o[i|0]|o[i+1|0]<<8|(o[i+2|0]<<16|o[i+3|0]<<24),t[B+340>>2]=n,n=o[i+40|0]|o[i+41|0]<<8|(o[i+42|0]<<16|o[i+43|0]<<24),t[B+368>>2]=o[i+36|0]|o[i+37|0]<<8|(o[i+38|0]<<16|o[i+39|0]<<24),t[B+372>>2]=n,n=B+336|0,xn(n,n,40,0,A,i),n=t[B+364>>2],r=t[B+360>>2],f[i+24|0]=r,f[i+25|0]=r>>>8,f[i+26|0]=r>>>16,f[i+27|0]=r>>>24,f[i+28|0]=n,f[i+29|0]=n>>>8,f[i+30|0]=n>>>16,f[i+31|0]=n>>>24,n=t[B+356>>2],r=t[B+352>>2],f[i+16|0]=r,f[i+17|0]=r>>>8,f[i+18|0]=r>>>16,f[i+19|0]=r>>>24,f[i+20|0]=n,f[i+21|0]=n>>>8,f[i+22|0]=n>>>16,f[i+23|0]=n>>>24,n=t[B+348>>2],r=t[B+344>>2],f[i+8|0]=r,f[i+9|0]=r>>>8,f[i+10|0]=r>>>16,f[i+11|0]=r>>>24,f[i+12|0]=n,f[i+13|0]=n>>>8,f[i+14|0]=n>>>16,f[i+15|0]=n>>>24,n=t[B+340>>2],r=t[B+336>>2],f[i|0]=r,f[i+1|0]=r>>>8,f[i+2|0]=r>>>16,f[i+3|0]=r>>>24,f[i+4|0]=n,f[i+5|0]=n>>>8,f[i+6|0]=n>>>16,f[i+7|0]=n>>>24,n=t[B+368>>2],r=t[B+372>>2],f[A|0]=1,f[A+1|0]=0,f[A+2|0]=0,f[A+3|0]=0,f[i+36|0]=n,f[i+37|0]=n>>>8,f[i+38|0]=n>>>16,f[i+39|0]=n>>>24,f[i+40|0]=r,f[i+41|0]=r>>>8,f[i+42|0]=r>>>16,f[i+43|0]=r>>>24}e&&(i=g+17|0,_=i>>>0<17?_+1|0:_,t[e>>2]=i,t[e+4>>2]=_),X=B+384|0;break e}Q2(),C2()}return 0}function g6(i,n,e,r){var A=0,_=0,s=0;A=X,s=A,A=A-576&-64,X=A,t[A+188>>2]=n;e:{if(n>>>0<=64){if(_=A+192|0,(oe(_,0,0,n)|0)<0)break e;(G2(_,A+188|0,4,0)|0)<0,(G2(_,e,r,0)|0)<0,he(_,i,n);break e}if(_=A+192|0,(oe(_,0,0,64)|0)<0||((G2(_,A+188|0,4,0)|0)<0,(G2(_,e,r,0)|0)<0,(he(_,A+112|0,64)|0)<0))break e;if(e=t[A+140>>2],r=t[A+136>>2],f[i+24|0]=r,f[i+25|0]=r>>>8,f[i+26|0]=r>>>16,f[i+27|0]=r>>>24,f[i+28|0]=e,f[i+29|0]=e>>>8,f[i+30|0]=e>>>16,f[i+31|0]=e>>>24,e=t[A+132>>2],r=t[A+128>>2],f[i+16|0]=r,f[i+17|0]=r>>>8,f[i+18|0]=r>>>16,f[i+19|0]=r>>>24,f[i+20|0]=e,f[i+21|0]=e>>>8,f[i+22|0]=e>>>16,f[i+23|0]=e>>>24,e=t[A+124>>2],r=t[A+120>>2],f[i+8|0]=r,f[i+9|0]=r>>>8,f[i+10|0]=r>>>16,f[i+11|0]=r>>>24,f[i+12|0]=e,f[i+13|0]=e>>>8,f[i+14|0]=e>>>16,f[i+15|0]=e>>>24,e=t[A+116>>2],r=t[A+112>>2],f[i|0]=r,f[i+1|0]=r>>>8,f[i+2|0]=r>>>16,f[i+3|0]=r>>>24,f[i+4|0]=e,f[i+5|0]=e>>>8,f[i+6|0]=e>>>16,f[i+7|0]=e>>>24,i=i+32|0,n=n-32|0,n>>>0>=65)for(;;){if(e=t[A+172>>2],t[A+104>>2]=t[A+168>>2],t[A+108>>2]=e,e=t[A+164>>2],t[A+96>>2]=t[A+160>>2],t[A+100>>2]=e,e=t[A+156>>2],t[A+88>>2]=t[A+152>>2],t[A+92>>2]=e,e=t[A+148>>2],t[A+80>>2]=t[A+144>>2],t[A+84>>2]=e,e=t[A+140>>2],t[A+72>>2]=t[A+136>>2],t[A+76>>2]=e,e=t[A+132>>2],t[A+64>>2]=t[A+128>>2],t[A+68>>2]=e,e=t[A+124>>2],t[A+56>>2]=t[A+120>>2],t[A+60>>2]=e,e=t[A+116>>2],t[A+48>>2]=t[A+112>>2],t[A+52>>2]=e,(wn(A+112|0,64,A+48|0,64,0,0,0)|0)<0)break e;if(e=t[A+140>>2],r=t[A+136>>2],f[i+24|0]=r,f[i+25|0]=r>>>8,f[i+26|0]=r>>>16,f[i+27|0]=r>>>24,f[i+28|0]=e,f[i+29|0]=e>>>8,f[i+30|0]=e>>>16,f[i+31|0]=e>>>24,e=t[A+132>>2],r=t[A+128>>2],f[i+16|0]=r,f[i+17|0]=r>>>8,f[i+18|0]=r>>>16,f[i+19|0]=r>>>24,f[i+20|0]=e,f[i+21|0]=e>>>8,f[i+22|0]=e>>>16,f[i+23|0]=e>>>24,e=t[A+124>>2],r=t[A+120>>2],f[i+8|0]=r,f[i+9|0]=r>>>8,f[i+10|0]=r>>>16,f[i+11|0]=r>>>24,f[i+12|0]=e,f[i+13|0]=e>>>8,f[i+14|0]=e>>>16,f[i+15|0]=e>>>24,e=t[A+116>>2],r=t[A+112>>2],f[i|0]=r,f[i+1|0]=r>>>8,f[i+2|0]=r>>>16,f[i+3|0]=r>>>24,f[i+4|0]=e,f[i+5|0]=e>>>8,f[i+6|0]=e>>>16,f[i+7|0]=e>>>24,i=i+32|0,n=n-32|0,!(n>>>0>64))break}if(e=t[A+172>>2],t[A+104>>2]=t[A+168>>2],t[A+108>>2]=e,e=t[A+164>>2],t[A+96>>2]=t[A+160>>2],t[A+100>>2]=e,e=t[A+156>>2],t[A+88>>2]=t[A+152>>2],t[A+92>>2]=e,e=t[A+148>>2],t[A+80>>2]=t[A+144>>2],t[A+84>>2]=e,e=t[A+140>>2],t[A+72>>2]=t[A+136>>2],t[A+76>>2]=e,e=t[A+132>>2],t[A+64>>2]=t[A+128>>2],t[A+68>>2]=e,e=t[A+124>>2],t[A+56>>2]=t[A+120>>2],t[A+60>>2]=e,e=t[A+116>>2],t[A+48>>2]=t[A+112>>2],t[A+52>>2]=e,e=A+112|0,!n|(wn(e,n,A+48|0,64,0,0,0)|0)<0)break e;_2(i,e,n)}N0(A+192|0,384),X=s}function Ui(i,n,e,r,A,_,s,h,a,u,B){var v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0,z=0,$=0,V=0,W=0;if(g=T(a,0,h,0),S=c,!S&g>>>0>=1073741824|S||(s|0)==1|s>>>0>1)return t[10172]=22,-1;for(g=_,q=s;;){if(g|q){S=g,g=g&g-1,q=q-!S&q,D=D+1|0,I=D?I:I+1|0;continue}break}if(c=I,!(!c&D>>>0<2&(!s&_>>>0>=2|(s|0)!=0))||!(a&&h))return t[10172]=28,-1;e:{r:{if(!(33554431/(a>>>0)>>>0<h>>>0|h>>>0>16777215)&&!s&33554431/(h>>>0)>>>0>=_>>>0)break r;break e}if(D=h<<7,Q=i2(D,a),N=i2(_,D),g=N+Q|0,Q>>>0>g>>>0||(I=h<<8,g=(I+g|0)- -64|0,g>>>0<=I>>>0))break e;r:{if(g>>>0>R1[i+8>>2]&&(Y=-1,Dn(i),S=X-16|0,X=S,q=h4(S+12|0,g),t[10172]=q,q=q?0:t[S+12>>2],t[i+4>>2]=q,t[i>>2]=q,t[i+8>>2]=q?g:0,X=S+16|0,!q))break r;for(G=t[i+4>>2],f4(n,e,r,A,G,Q),Y=Q+G|0,g=Y+N|0,S=g+(h<<7)|0,V=(S+D|0)+-64|0,$=_-1|0,q=h<<5,N=g+I|0,W=(g+D|0)+-64|0;;){for(I=i2(D,z)+G|0,r=0;i=r<<2,A=i+I|0,t[i+g>>2]=o[A|0]|o[A+1|0]<<8|(o[A+2|0]<<16|o[A+3|0]<<24),A=i|4,v=A+g|0,A=A+I|0,t[v>>2]=o[A|0]|o[A+1|0]<<8|(o[A+2|0]<<16|o[A+3|0]<<24),A=i|8,v=A+g|0,A=A+I|0,t[v>>2]=o[A|0]|o[A+1|0]<<8|(o[A+2|0]<<16|o[A+3|0]<<24),i=i|12,A=i+g|0,i=i+I|0,t[A>>2]=o[i|0]|o[i+1|0]<<8|(o[i+2|0]<<16|o[i+3|0]<<24),r=r+4|0,(q|0)!=(r|0););for(i=0,r=0;A=!D,A||_2(Y+(i2(i,q)<<2)|0,g,D),gn(g,S,N,h),A||_2(Y+(i2(q,i|1)<<2)|0,S,D),gn(S,g,N,h),K=0,A=0,i=i+2|0,r=i>>>0<2?r+1|0:r,!!((s|0)==(r|0)&i>>>0<_>>>0|r>>>0<s>>>0););for(;;){for(i=Y+(i2(q,$&t[W>>2])<<2)|0,r=0;v=r<<2,w=v+g|0,t[w>>2]=t[w>>2]^t[i+v>>2],w=v|4,M=w+g|0,t[M>>2]=t[M>>2]^t[i+w>>2],w=v|8,M=w+g|0,t[M>>2]=t[M>>2]^t[i+w>>2],v=v|12,w=v+g|0,t[w>>2]=t[w>>2]^t[i+v>>2],r=r+4|0,(q|0)!=(r|0););for(gn(g,S,N,h),i=Y+(i2(q,$&t[V>>2])<<2)|0,r=0;v=r<<2,w=v+S|0,t[w>>2]=t[w>>2]^t[i+v>>2],w=v|4,M=w+S|0,t[M>>2]=t[M>>2]^t[i+w>>2],w=v|8,M=w+S|0,t[M>>2]=t[M>>2]^t[i+w>>2],v=v|12,w=v+S|0,t[w>>2]=t[w>>2]^t[i+v>>2],r=r+4|0,(q|0)!=(r|0););if(gn(S,g,N,h),r=0,K=K+2|0,i=K>>>0<2?A+1|0:A,A=i,!((s|0)==(i|0)&_>>>0>K>>>0|i>>>0<s>>>0))break}for(;i=r<<2,A=i+I|0,v=t[i+g>>2],f[A|0]=v,f[A+1|0]=v>>>8,f[A+2|0]=v>>>16,f[A+3|0]=v>>>24,v=i|4,A=v+I|0,v=t[g+v>>2],f[A|0]=v,f[A+1|0]=v>>>8,f[A+2|0]=v>>>16,f[A+3|0]=v>>>24,v=i|8,A=v+I|0,v=t[g+v>>2],f[A|0]=v,f[A+1|0]=v>>>8,f[A+2|0]=v>>>16,f[A+3|0]=v>>>24,A=i|12,i=A+I|0,A=t[A+g>>2],f[i|0]=A,f[i+1|0]=A>>>8,f[i+2|0]=A>>>16,f[i+3|0]=A>>>24,r=r+4|0,(q|0)!=(r|0););if(z=z+1|0,(z|0)==(a|0))break}f4(n,e,G,Q,u,B),Y=0}return Y}return t[10172]=48,-1}function Ki(i,n,e){i=i|0,n=n|0,e=e|0;var r=0,A=0;r=X-192|0,X=r,t[r+96>>2]=0,t[r+100>>2]=0,t[r+104>>2]=0,t[r+108>>2]=0,t[r+112>>2]=0,t[r+116>>2]=0,t[r+120>>2]=0,t[r+124>>2]=0,A=o[n+4|0]|o[n+5|0]<<8|(o[n+6|0]<<16|o[n+7|0]<<24),t[r+64>>2]=o[n|0]|o[n+1|0]<<8|(o[n+2|0]<<16|o[n+3|0]<<24),t[r+68>>2]=A,A=o[n+12|0]|o[n+13|0]<<8|(o[n+14|0]<<16|o[n+15|0]<<24),t[r+72>>2]=o[n+8|0]|o[n+9|0]<<8|(o[n+10|0]<<16|o[n+11|0]<<24),t[r+76>>2]=A,A=o[n+20|0]|o[n+21|0]<<8|(o[n+22|0]<<16|o[n+23|0]<<24),t[r+80>>2]=o[n+16|0]|o[n+17|0]<<8|(o[n+18|0]<<16|o[n+19|0]<<24),t[r+84>>2]=A,A=o[n+28|0]|o[n+29|0]<<8|(o[n+30|0]<<16|o[n+31|0]<<24),t[r+88>>2]=o[n+24|0]|o[n+25|0]<<8|(o[n+26|0]<<16|o[n+27|0]<<24),t[r+92>>2]=A,t[r+32>>2]=0,t[r+36>>2]=0,t[r+40>>2]=0,t[r+44>>2]=0,t[r+48>>2]=0,t[r+52>>2]=0,t[r+56>>2]=0,t[r+60>>2]=0,n=o[e+4|0]|o[e+5|0]<<8|(o[e+6|0]<<16|o[e+7|0]<<24),t[r>>2]=o[e|0]|o[e+1|0]<<8|(o[e+2|0]<<16|o[e+3|0]<<24),t[r+4>>2]=n,n=o[e+12|0]|o[e+13|0]<<8|(o[e+14|0]<<16|o[e+15|0]<<24),t[r+8>>2]=o[e+8|0]|o[e+9|0]<<8|(o[e+10|0]<<16|o[e+11|0]<<24),t[r+12>>2]=n,n=o[e+20|0]|o[e+21|0]<<8|(o[e+22|0]<<16|o[e+23|0]<<24),t[r+16>>2]=o[e+16|0]|o[e+17|0]<<8|(o[e+18|0]<<16|o[e+19|0]<<24),t[r+20>>2]=n,n=o[e+28|0]|o[e+29|0]<<8|(o[e+30|0]<<16|o[e+31|0]<<24),t[r+24>>2]=o[e+24|0]|o[e+25|0]<<8|(o[e+26|0]<<16|o[e+27|0]<<24),t[r+28>>2]=n,N4(r- -64|0,r),e=t[r+124>>2],t[r+184>>2]=t[r+120>>2],t[r+188>>2]=e,n=t[r+116>>2],t[r+176>>2]=t[r+112>>2],t[r+180>>2]=n,n=t[r+108>>2],t[r+168>>2]=t[r+104>>2],t[r+172>>2]=n,n=t[r+100>>2],t[r+160>>2]=t[r+96>>2],t[r+164>>2]=n,n=t[r+92>>2],t[r+152>>2]=t[r+88>>2],t[r+156>>2]=n,n=t[r+84>>2],t[r+144>>2]=t[r+80>>2],t[r+148>>2]=n,n=t[r+76>>2],t[r+136>>2]=t[r+72>>2],t[r+140>>2]=n,n=t[r+68>>2],t[r+128>>2]=t[r+64>>2],t[r+132>>2]=n,n=r+128|0,Me(n),A=t[r+156>>2],e=t[r+152>>2],f[i+24|0]=e,f[i+25|0]=e>>>8,f[i+26|0]=e>>>16,f[i+27|0]=e>>>24,f[i+28|0]=A,f[i+29|0]=A>>>8,f[i+30|0]=A>>>16,f[i+31|0]=A>>>24,A=t[r+148>>2],e=t[r+144>>2],f[i+16|0]=e,f[i+17|0]=e>>>8,f[i+18|0]=e>>>16,f[i+19|0]=e>>>24,f[i+20|0]=A,f[i+21|0]=A>>>8,f[i+22|0]=A>>>16,f[i+23|0]=A>>>24,A=t[r+140>>2],e=t[r+136>>2],f[i+8|0]=e,f[i+9|0]=e>>>8,f[i+10|0]=e>>>16,f[i+11|0]=e>>>24,f[i+12|0]=A,f[i+13|0]=A>>>8,f[i+14|0]=A>>>16,f[i+15|0]=A>>>24,A=t[r+132>>2],e=t[r+128>>2],f[i|0]=e,f[i+1|0]=e>>>8,f[i+2|0]=e>>>16,f[i+3|0]=e>>>24,f[i+4|0]=A,f[i+5|0]=A>>>8,f[i+6|0]=A>>>16,f[i+7|0]=A>>>24,N0(n,64),X=r+192|0}function gn(i,n,e,r){var A=0,_=0,s=0,h=0,a=0;for(A=((r<<7)+i|0)+-64|0,_=t[A+60>>2],t[e+56>>2]=t[A+56>>2],t[e+60>>2]=_,_=t[A+52>>2],t[e+48>>2]=t[A+48>>2],t[e+52>>2]=_,_=t[A+44>>2],t[e+40>>2]=t[A+40>>2],t[e+44>>2]=_,_=t[A+36>>2],t[e+32>>2]=t[A+32>>2],t[e+36>>2]=_,_=t[A+28>>2],t[e+24>>2]=t[A+24>>2],t[e+28>>2]=_,_=t[A+20>>2],t[e+16>>2]=t[A+16>>2],t[e+20>>2]=_,_=t[A+12>>2],t[e+8>>2]=t[A+8>>2],t[e+12>>2]=_,_=t[A+4>>2],t[e>>2]=t[A>>2],t[e+4>>2]=_,_=r<<6,a=r<<1;r=(h<<6)+i|0,t[e>>2]=t[e>>2]^t[r>>2],t[e+4>>2]=t[e+4>>2]^t[r+4>>2],t[e+8>>2]=t[e+8>>2]^t[r+8>>2],t[e+12>>2]=t[e+12>>2]^t[r+12>>2],t[e+16>>2]=t[e+16>>2]^t[r+16>>2],t[e+20>>2]=t[e+20>>2]^t[r+20>>2],t[e+24>>2]=t[e+24>>2]^t[r+24>>2],t[e+28>>2]=t[e+28>>2]^t[r+28>>2],t[e+32>>2]=t[e+32>>2]^t[r+32>>2],t[e+36>>2]=t[e+36>>2]^t[r+36>>2],t[e+40>>2]=t[e+40>>2]^t[r+40>>2],t[e+44>>2]=t[e+44>>2]^t[r+44>>2],t[e+48>>2]=t[e+48>>2]^t[r+48>>2],t[e+52>>2]=t[e+52>>2]^t[r+52>>2],t[e+56>>2]=t[e+56>>2]^t[r+56>>2],t[e+60>>2]=t[e+60>>2]^t[r+60>>2],n4(e),s=t[e+60>>2],A=(h<<5)+n|0,t[A+56>>2]=t[e+56>>2],t[A+60>>2]=s,s=t[e+52>>2],t[A+48>>2]=t[e+48>>2],t[A+52>>2]=s,s=t[e+44>>2],t[A+40>>2]=t[e+40>>2],t[A+44>>2]=s,s=t[e+36>>2],t[A+32>>2]=t[e+32>>2],t[A+36>>2]=s,s=t[e+28>>2],t[A+24>>2]=t[e+24>>2],t[A+28>>2]=s,s=t[e+20>>2],t[A+16>>2]=t[e+16>>2],t[A+20>>2]=s,s=t[e+12>>2],t[A+8>>2]=t[e+8>>2],t[A+12>>2]=s,s=t[e+4>>2],t[A>>2]=t[e>>2],t[A+4>>2]=s,t[e>>2]=t[e>>2]^t[r- -64>>2],t[e+4>>2]=t[e+4>>2]^t[r+68>>2],t[e+8>>2]=t[e+8>>2]^t[r+72>>2],t[e+12>>2]=t[e+12>>2]^t[r+76>>2],t[e+16>>2]=t[e+16>>2]^t[r+80>>2],t[e+20>>2]=t[e+20>>2]^t[r+84>>2],t[e+24>>2]=t[e+24>>2]^t[r+88>>2],t[e+28>>2]=t[e+28>>2]^t[r+92>>2],t[e+32>>2]=t[e+32>>2]^t[r+96>>2],t[e+36>>2]=t[e+36>>2]^t[r+100>>2],t[e+40>>2]=t[e+40>>2]^t[r+104>>2],t[e+44>>2]=t[e+44>>2]^t[r+108>>2],t[e+48>>2]=t[e+48>>2]^t[r+112>>2],t[e+52>>2]=t[e+52>>2]^t[r+116>>2],t[e+56>>2]=t[e+56>>2]^t[r+120>>2],t[e+60>>2]=t[e+60>>2]^t[r+124>>2],n4(e),r=A+_|0,A=t[e+60>>2],t[r+56>>2]=t[e+56>>2],t[r+60>>2]=A,A=t[e+52>>2],t[r+48>>2]=t[e+48>>2],t[r+52>>2]=A,A=t[e+44>>2],t[r+40>>2]=t[e+40>>2],t[r+44>>2]=A,A=t[e+36>>2],t[r+32>>2]=t[e+32>>2],t[r+36>>2]=A,A=t[e+28>>2],t[r+24>>2]=t[e+24>>2],t[r+28>>2]=A,A=t[e+20>>2],t[r+16>>2]=t[e+16>>2],t[r+20>>2]=A,A=t[e+12>>2],t[r+8>>2]=t[e+8>>2],t[r+12>>2]=A,A=t[e+4>>2],t[r>>2]=t[e>>2],t[r+4>>2]=A,h=h+2|0,a>>>0>h>>>0;);}function d6(i,n,e,r){var A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0,z=0,$=0,V=0,W=0,e0=0;for(z=o[i+80|0]?0:16777216,q=t[i+36>>2],g=t[i+32>>2],w=t[i+28>>2],B=t[i+24>>2],v=t[i+20>>2],I=t[i+4>>2],$=i2(I,5),M=t[i+8>>2],G=i2(M,5),N=t[i+12>>2],Q=i2(N,5),K=t[i+16>>2],Y=i2(K,5),D=t[i>>2];s=((o[n+3|0]|o[n+4|0]<<8|(o[n+5|0]<<16|o[n+6|0]<<24))>>>2&67108863)+B|0,A=T(s,0,N,0),a=c,B=((o[n|0]|o[n+1|0]<<8|(o[n+2|0]<<16|o[n+3|0]<<24))&67108863)+v|0,h=T(B,0,K,0),v=h+A|0,A=c+a|0,A=h>>>0>v>>>0?A+1|0:A,w=((o[n+6|0]|o[n+7|0]<<8|(o[n+8|0]<<16|o[n+9|0]<<24))>>>4&67108863)+w|0,a=T(w,0,M,0),v=a+v|0,A=c+A|0,A=a>>>0>v>>>0?A+1|0:A,g=((o[n+9|0]|o[n+10|0]<<8|(o[n+11|0]<<16|o[n+12|0]<<24))>>>6|0)+g|0,a=T(g,0,I,0),v=a+v|0,A=c+A|0,A=a>>>0>v>>>0?A+1|0:A,q=q+z+((o[n+12|0]|o[n+13|0]<<8|(o[n+14|0]<<16|o[n+15|0]<<24))>>>8)|0,a=T(q,0,D,0),v=a+v|0,A=c+A|0,V=v,v=a>>>0>v>>>0?A+1|0:A,A=T(s,0,M,0),a=c,h=T(B,0,N,0),A=h+A|0,_=c+a|0,_=A>>>0<h>>>0?_+1|0:_,h=T(w,0,I,0),a=h+A|0,A=c+_|0,A=h>>>0>a>>>0?A+1|0:A,h=T(g,0,D,0),a=h+a|0,A=c+A|0,A=h>>>0>a>>>0?A+1|0:A,h=T(q,0,Y,0),a=h+a|0,A=c+A|0,W=a,a=h>>>0>a>>>0?A+1|0:A,A=T(s,0,I,0),u=c,_=T(B,0,M,0),h=_+A|0,A=c+u|0,A=_>>>0>h>>>0?A+1|0:A,u=T(w,0,D,0),h=u+h|0,_=c+A|0,_=h>>>0<u>>>0?_+1|0:_,u=T(g,0,Y,0),h=u+h|0,A=c+_|0,A=h>>>0<u>>>0?A+1|0:A,u=T(q,0,Q,0),h=u+h|0,A=c+A|0,e0=h,h=h>>>0<u>>>0?A+1|0:A,A=T(s,0,D,0),_=c,S=T(B,0,I,0),u=S+A|0,A=c+_|0,A=u>>>0<S>>>0?A+1|0:A,_=T(w,0,Y,0),u=_+u|0,A=c+A|0,A=_>>>0>u>>>0?A+1|0:A,S=T(g,0,Q,0),u=S+u|0,_=c+A|0,_=u>>>0<S>>>0?_+1|0:_,S=T(q,0,G,0),u=S+u|0,A=c+_|0,A=u>>>0<S>>>0?A+1|0:A,S=u,u=A,A=T(s,0,Y,0),_=c,B=T(B,0,D,0),s=B+A|0,A=c+_|0,A=s>>>0<B>>>0?A+1|0:A,B=T(w,0,Q,0),s=B+s|0,A=c+A|0,A=s>>>0<B>>>0?A+1|0:A,B=T(g,0,G,0),s=B+s|0,A=c+A|0,A=s>>>0<B>>>0?A+1|0:A,B=T(q,0,$,0),s=B+s|0,_=c+A|0,_=s>>>0<B>>>0?_+1|0:_,B=s,w=(_&67108863)<<6|s>>>26,s=w+S|0,A=u,A=s>>>0<w>>>0?A+1|0:A,w=s,g=(A&67108863)<<6|s>>>26,s=g+e0|0,A=h,A=s>>>0<g>>>0?A+1|0:A,g=s,_=a,s=(A&67108863)<<6|s>>>26,A=s+W|0,q=A,_=A>>>0<s>>>0?_+1|0:_,a=(_&67108863)<<6|A>>>26,s=a+V|0,A=v,A=i2(((s>>>0<a>>>0?A+1|0:A)&67108863)<<6|s>>>26,5)+(B&67108863)|0,B=(w&67108863)+(A>>>26|0)|0,w=g&67108863,g=q&67108863,q=s&67108863,v=A&67108863,n=n+16|0,r=r-(e>>>0<16)|0,e=e-16|0,!!(!r&e>>>0>15|r););t[i+36>>2]=q,t[i+32>>2]=g,t[i+28>>2]=w,t[i+24>>2]=B,t[i+20>>2]=v}function L1(i,n,e,r){i=i|0,n=n|0,e=e|0,r=r|0;var A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0;e:{if(!r){_=2036477234,s=857760878,A=1634760805,B=1797285236;break e}_=o[r+8|0]|o[r+9|0]<<8|(o[r+10|0]<<16|o[r+11|0]<<24),s=o[r+4|0]|o[r+5|0]<<8|(o[r+6|0]<<16|o[r+7|0]<<24),A=o[r|0]|o[r+1|0]<<8|(o[r+2|0]<<16|o[r+3|0]<<24),B=o[r+12|0]|o[r+13|0]<<8|(o[r+14|0]<<16|o[r+15|0]<<24)}for(h=o[n+12|0]|o[n+13|0]<<8|(o[n+14|0]<<16|o[n+15|0]<<24),g=o[n+8|0]|o[n+9|0]<<8|(o[n+10|0]<<16|o[n+11|0]<<24),a=o[n+4|0]|o[n+5|0]<<8|(o[n+6|0]<<16|o[n+7|0]<<24),w=o[e+28|0]|o[e+29|0]<<8|(o[e+30|0]<<16|o[e+31|0]<<24),u=o[e+24|0]|o[e+25|0]<<8|(o[e+26|0]<<16|o[e+27|0]<<24),Y=o[e+20|0]|o[e+21|0]<<8|(o[e+22|0]<<16|o[e+23|0]<<24),q=o[e+16|0]|o[e+17|0]<<8|(o[e+18|0]<<16|o[e+19|0]<<24),r=o[e+12|0]|o[e+13|0]<<8|(o[e+14|0]<<16|o[e+15|0]<<24),S=o[e+8|0]|o[e+9|0]<<8|(o[e+10|0]<<16|o[e+11|0]<<24),I=o[e+4|0]|o[e+5|0]<<8|(o[e+6|0]<<16|o[e+7|0]<<24),n=o[n|0]|o[n+1|0]<<8|(o[n+2|0]<<16|o[n+3|0]<<24),e=o[e|0]|o[e+1|0]<<8|(o[e+2|0]<<16|o[e+3|0]<<24);v=e,D=n,n=e+A|0,e=t0(D^n,16),A=e+q|0,q=t0(v^A,12),v=q,D=n+q|0,M=t0(D^e,8),q=M+A|0,n=t0(v^q,7),e=r+B|0,h=t0(e^h,16),w=h+w|0,r=t0(w^r,12),v=S,B=_+S|0,_=t0(B^g,16),S=_+u|0,A=t0(v^S,12),u=_,_=A+B|0,u=t0(u^_,8),N=e+r|0,B=N+n|0,e=t0(u^B,16),s=s+I|0,g=t0(s^a,16),a=g+Y|0,I=t0(a^I,12),s=I+s|0,v=n,n=t0(s^g,8),Q=n+a|0,a=Q+e|0,v=t0(v^a,12),B=v+B|0,g=t0(e^B,8),Y=g+a|0,e=t0(Y^v,7),h=t0(h^N,8),w=h+w|0,r=t0(w^r,7),_=r+_|0,a=t0(_^n,16),n=a+q|0,r=t0(n^r,12),_=r+_|0,a=t0(a^_,8),q=n+a|0,r=t0(q^r,7),u=u+S|0,n=t0(u^A,7),s=n+s|0,S=t0(s^M,16),A=S+w|0,M=t0(n^A,12),s=M+s|0,n=t0(S^s,8),w=A+n|0,S=t0(w^M,7),v=u,u=h,A=t0(I^Q,7),h=A+D|0,u=t0(u^h,16),I=v+u|0,D=t0(A^I,12),A=D+h|0,h=t0(u^A,8),u=I+h|0,I=t0(u^D,7),G=G+1|0,(G|0)!=10;);return f[i|0]=A,f[i+1|0]=A>>>8,f[i+2|0]=A>>>16,f[i+3|0]=A>>>24,f[i+28|0]=h,f[i+29|0]=h>>>8,f[i+30|0]=h>>>16,f[i+31|0]=h>>>24,f[i+24|0]=g,f[i+25|0]=g>>>8,f[i+26|0]=g>>>16,f[i+27|0]=g>>>24,f[i+20|0]=a,f[i+21|0]=a>>>8,f[i+22|0]=a>>>16,f[i+23|0]=a>>>24,f[i+16|0]=n,f[i+17|0]=n>>>8,f[i+18|0]=n>>>16,f[i+19|0]=n>>>24,f[i+12|0]=B,f[i+13|0]=B>>>8,f[i+14|0]=B>>>16,f[i+15|0]=B>>>24,f[i+8|0]=_,f[i+9|0]=_>>>8,f[i+10|0]=_>>>16,f[i+11|0]=_>>>24,f[i+4|0]=s,f[i+5|0]=s>>>8,f[i+6|0]=s>>>16,f[i+7|0]=s>>>24,0}function A1(i,n,e){var r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0,z=0,$=0,V=0,W=0,e0=0,i0=0,o0=0,s0=0,h0=0;r=t[n+40>>2],A=t[n+4>>2],s=t[n+44>>2],h=t[n+8>>2],a=t[n+48>>2],u=t[n+12>>2],B=t[n+52>>2],v=t[n+16>>2],g=t[n+56>>2],w=t[n+20>>2],q=t[n+60>>2],S=t[n+24>>2],_=n- -64|0,I=t[_>>2],D=t[n+28>>2],M=t[n+68>>2],Y=t[n+32>>2],N=t[n+72>>2],Q=t[n>>2],t[i+36>>2]=t[n+36>>2]+t[n+76>>2],t[i+32>>2]=Y+N,t[i+28>>2]=D+M,t[i+24>>2]=S+I,t[i+20>>2]=w+q,t[i+16>>2]=v+g,t[i+12>>2]=u+B,t[i+8>>2]=h+a,t[i+4>>2]=A+s,t[i>>2]=r+Q,s=t[n+40>>2],r=t[n+4>>2],h=t[n+44>>2],a=t[n+8>>2],u=t[n+48>>2],B=t[n+12>>2],v=t[n+52>>2],g=t[n+16>>2],w=t[n+56>>2],q=t[n+20>>2],S=t[n+60>>2],I=t[n+24>>2],_=t[_>>2],A=t[n+28>>2],D=t[n+68>>2],M=t[n+32>>2],Y=t[n+72>>2],N=t[n>>2],t[i+76>>2]=t[n+76>>2]-t[n+36>>2],t[i+72>>2]=Y-M,t[i+68>>2]=D-A,A=i- -64|0,t[A>>2]=_-I,t[i+60>>2]=S-q,t[i+56>>2]=w-g,t[i+52>>2]=v-B,t[i+48>>2]=u-a,t[i+44>>2]=h-r,r=i+40|0,t[r>>2]=s-N,A0(i+80|0,i,e),A0(r,r,e+40|0),A0(i+120|0,e+120|0,n+120|0),A0(i,n+80|0,e+80|0),Q=t[i+4>>2],z=t[i+8>>2],$=t[i+12>>2],V=t[i+16>>2],W=t[i+20>>2],e0=t[i+24>>2],i0=t[i+28>>2],o0=t[i+32>>2],s0=t[i+36>>2],n=t[r>>2],e=t[i+80>>2],s=t[i+44>>2],h=t[i+84>>2],a=t[i+48>>2],u=t[i+88>>2],B=t[i+52>>2],v=t[i+92>>2],g=t[i+56>>2],w=t[i+96>>2],q=t[i+60>>2],S=t[i+100>>2],_=t[A>>2],I=t[i+104>>2],D=t[i+68>>2],M=t[i+108>>2],Y=t[i+72>>2],N=t[i+112>>2],h0=t[i>>2],G=t[i+76>>2],K=t[i+116>>2],t[i+76>>2]=G+K,t[i+72>>2]=Y+N,t[i+68>>2]=D+M,t[A>>2]=_+I,t[i+60>>2]=q+S,t[i+56>>2]=g+w,t[i+52>>2]=B+v,t[i+48>>2]=a+u,t[i+44>>2]=s+h,t[r>>2]=n+e,t[i+36>>2]=K-G,t[i+32>>2]=N-Y,t[i+28>>2]=M-D,t[i+24>>2]=I-_,t[i+20>>2]=S-q,t[i+16>>2]=w-g,t[i+12>>2]=v-B,t[i+8>>2]=u-a,t[i+4>>2]=h-s,t[i>>2]=e-n,n=s0<<1,e=t[i+156>>2],t[i+156>>2]=n-e,r=o0<<1,A=t[i+152>>2],t[i+152>>2]=r-A,s=i0<<1,h=t[i+148>>2],t[i+148>>2]=s-h,a=e0<<1,u=t[i+144>>2],t[i+144>>2]=a-u,B=W<<1,v=t[i+140>>2],t[i+140>>2]=B-v,g=V<<1,w=t[i+136>>2],t[i+136>>2]=g-w,q=$<<1,S=t[i+132>>2],t[i+132>>2]=q-S,_=z<<1,I=t[i+128>>2],t[i+128>>2]=_-I,D=Q<<1,M=t[i+124>>2],t[i+124>>2]=D-M,Y=h0<<1,N=t[i+120>>2],t[i+120>>2]=Y-N,t[i+112>>2]=r+A,t[i+108>>2]=s+h,t[i+104>>2]=a+u,t[i+100>>2]=B+v,t[i+96>>2]=g+w,t[i+92>>2]=q+S,t[i+88>>2]=_+I,t[i+84>>2]=D+M,t[i+80>>2]=Y+N,t[i+116>>2]=n+e}function dn(i,n,e){var r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0,z=0,$=0,V=0,W=0,e0=0,i0=0,o0=0,s0=0,h0=0;r=t[n+40>>2],A=t[n+4>>2],s=t[n+44>>2],h=t[n+8>>2],a=t[n+48>>2],u=t[n+12>>2],B=t[n+52>>2],v=t[n+16>>2],g=t[n+56>>2],w=t[n+20>>2],q=t[n+60>>2],S=t[n+24>>2],_=n- -64|0,I=t[_>>2],D=t[n+28>>2],M=t[n+68>>2],Y=t[n+32>>2],N=t[n+72>>2],Q=t[n>>2],t[i+36>>2]=t[n+36>>2]+t[n+76>>2],t[i+32>>2]=Y+N,t[i+28>>2]=D+M,t[i+24>>2]=S+I,t[i+20>>2]=w+q,t[i+16>>2]=v+g,t[i+12>>2]=u+B,t[i+8>>2]=h+a,t[i+4>>2]=A+s,t[i>>2]=r+Q,s=t[n+40>>2],r=t[n+4>>2],h=t[n+44>>2],a=t[n+8>>2],u=t[n+48>>2],B=t[n+12>>2],v=t[n+52>>2],g=t[n+16>>2],w=t[n+56>>2],q=t[n+20>>2],S=t[n+60>>2],I=t[n+24>>2],_=t[_>>2],A=t[n+28>>2],D=t[n+68>>2],M=t[n+32>>2],Y=t[n+72>>2],N=t[n>>2],t[i+76>>2]=t[n+76>>2]-t[n+36>>2],t[i+72>>2]=Y-M,t[i+68>>2]=D-A,A=i- -64|0,t[A>>2]=_-I,t[i+60>>2]=S-q,t[i+56>>2]=w-g,t[i+52>>2]=v-B,t[i+48>>2]=u-a,t[i+44>>2]=h-r,r=i+40|0,t[r>>2]=s-N,A0(i+80|0,i,e+40|0),A0(r,r,e),A0(i+120|0,e+120|0,n+120|0),A0(i,n+80|0,e+80|0),Q=t[i+4>>2],z=t[i+8>>2],$=t[i+12>>2],V=t[i+16>>2],W=t[i+20>>2],e0=t[i+24>>2],i0=t[i+28>>2],o0=t[i+32>>2],s0=t[i+36>>2],n=t[r>>2],e=t[i+80>>2],s=t[i+44>>2],h=t[i+84>>2],a=t[i+48>>2],u=t[i+88>>2],B=t[i+52>>2],v=t[i+92>>2],g=t[i+56>>2],w=t[i+96>>2],q=t[i+60>>2],S=t[i+100>>2],_=t[A>>2],I=t[i+104>>2],D=t[i+68>>2],M=t[i+108>>2],Y=t[i+72>>2],N=t[i+112>>2],h0=t[i>>2],G=t[i+76>>2],K=t[i+116>>2],t[i+76>>2]=G+K,t[i+72>>2]=Y+N,t[i+68>>2]=D+M,t[A>>2]=_+I,t[i+60>>2]=q+S,t[i+56>>2]=g+w,t[i+52>>2]=B+v,t[i+48>>2]=a+u,t[i+44>>2]=s+h,t[r>>2]=n+e,t[i+36>>2]=K-G,t[i+32>>2]=N-Y,t[i+28>>2]=M-D,t[i+24>>2]=I-_,t[i+20>>2]=S-q,t[i+16>>2]=w-g,t[i+12>>2]=v-B,t[i+8>>2]=u-a,t[i+4>>2]=h-s,t[i>>2]=e-n,n=t[i+156>>2],e=s0<<1,t[i+156>>2]=n+e,r=t[i+152>>2],A=o0<<1,t[i+152>>2]=r+A,s=t[i+148>>2],h=i0<<1,t[i+148>>2]=s+h,a=t[i+144>>2],u=e0<<1,t[i+144>>2]=a+u,B=t[i+140>>2],v=W<<1,t[i+140>>2]=B+v,g=t[i+136>>2],w=V<<1,t[i+136>>2]=g+w,q=t[i+132>>2],S=$<<1,t[i+132>>2]=q+S,_=t[i+128>>2],I=z<<1,t[i+128>>2]=_+I,D=t[i+124>>2],M=Q<<1,t[i+124>>2]=D+M,Y=t[i+120>>2],N=h0<<1,t[i+120>>2]=Y+N,t[i+112>>2]=A-r,t[i+108>>2]=h-s,t[i+104>>2]=u-a,t[i+100>>2]=v-B,t[i+96>>2]=w-g,t[i+92>>2]=S-q,t[i+88>>2]=I-_,t[i+84>>2]=M-D,t[i+80>>2]=N-Y,t[i+116>>2]=e-n}function w6(i,n,e){var r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0,z=0,$=0,V=0,W=0,e0=0,i0=0,o0=0,s0=0,h0=0;r=t[n+40>>2],A=t[n+4>>2],s=t[n+44>>2],h=t[n+8>>2],a=t[n+48>>2],u=t[n+12>>2],B=t[n+52>>2],v=t[n+16>>2],g=t[n+56>>2],w=t[n+20>>2],q=t[n+60>>2],S=t[n+24>>2],_=n- -64|0,I=t[_>>2],D=t[n+28>>2],M=t[n+68>>2],Y=t[n+32>>2],N=t[n+72>>2],Q=t[n>>2],t[i+36>>2]=t[n+36>>2]+t[n+76>>2],t[i+32>>2]=Y+N,t[i+28>>2]=D+M,t[i+24>>2]=S+I,t[i+20>>2]=w+q,t[i+16>>2]=v+g,t[i+12>>2]=u+B,t[i+8>>2]=h+a,t[i+4>>2]=A+s,t[i>>2]=r+Q,s=t[n+40>>2],r=t[n+4>>2],h=t[n+44>>2],a=t[n+8>>2],u=t[n+48>>2],B=t[n+12>>2],v=t[n+52>>2],g=t[n+16>>2],w=t[n+56>>2],q=t[n+20>>2],S=t[n+60>>2],I=t[n+24>>2],_=t[_>>2],A=t[n+28>>2],D=t[n+68>>2],M=t[n+32>>2],Y=t[n+72>>2],N=t[n>>2],t[i+76>>2]=t[n+76>>2]-t[n+36>>2],t[i+72>>2]=Y-M,t[i+68>>2]=D-A,A=i- -64|0,t[A>>2]=_-I,t[i+60>>2]=S-q,t[i+56>>2]=w-g,t[i+52>>2]=v-B,t[i+48>>2]=u-a,t[i+44>>2]=h-r,r=i+40|0,t[r>>2]=s-N,A0(i+80|0,i,e),A0(r,r,e+40|0),A0(i+120|0,e+80|0,n+120|0),Q=t[n+80>>2],z=t[n+84>>2],$=t[n+88>>2],V=t[n+92>>2],W=t[n+96>>2],e0=t[n+100>>2],i0=t[n+104>>2],o0=t[n+108>>2],s0=t[n+112>>2],h0=t[n+116>>2],n=t[r>>2],e=t[i+80>>2],s=t[i+44>>2],h=t[i+84>>2],a=t[i+48>>2],u=t[i+88>>2],B=t[i+52>>2],v=t[i+92>>2],g=t[i+56>>2],w=t[i+96>>2],q=t[i+60>>2],S=t[i+100>>2],_=t[A>>2],I=t[i+104>>2],D=t[i+68>>2],M=t[i+108>>2],Y=t[i+72>>2],N=t[i+112>>2],G=t[i+76>>2],K=t[i+116>>2],t[i+76>>2]=G+K,t[i+72>>2]=Y+N,t[i+68>>2]=D+M,t[A>>2]=_+I,t[i+60>>2]=q+S,t[i+56>>2]=g+w,t[i+52>>2]=B+v,t[i+48>>2]=a+u,t[i+44>>2]=s+h,t[r>>2]=n+e,t[i+36>>2]=K-G,t[i+32>>2]=N-Y,t[i+28>>2]=M-D,t[i+24>>2]=I-_,t[i+20>>2]=S-q,t[i+16>>2]=w-g,t[i+12>>2]=v-B,t[i+8>>2]=u-a,t[i+4>>2]=h-s,t[i>>2]=e-n,n=h0<<1,e=t[i+156>>2],t[i+156>>2]=n-e,r=s0<<1,A=t[i+152>>2],t[i+152>>2]=r-A,s=o0<<1,h=t[i+148>>2],t[i+148>>2]=s-h,a=i0<<1,u=t[i+144>>2],t[i+144>>2]=a-u,B=e0<<1,v=t[i+140>>2],t[i+140>>2]=B-v,g=W<<1,w=t[i+136>>2],t[i+136>>2]=g-w,q=V<<1,S=t[i+132>>2],t[i+132>>2]=q-S,_=$<<1,I=t[i+128>>2],t[i+128>>2]=_-I,D=z<<1,M=t[i+124>>2],t[i+124>>2]=D-M,Y=Q<<1,N=t[i+120>>2],t[i+120>>2]=Y-N,t[i+112>>2]=r+A,t[i+108>>2]=s+h,t[i+104>>2]=a+u,t[i+100>>2]=B+v,t[i+96>>2]=g+w,t[i+92>>2]=q+S,t[i+88>>2]=_+I,t[i+84>>2]=D+M,t[i+80>>2]=Y+N,t[i+116>>2]=n+e}function oe(i,n,e,r){i=i|0,n=n|0,e=e|0,r=r|0;var A=0,_=0;if(A=-1,_=r-65|0,!(_>>>0<4294967232|e>>>0>64)){e:{if(!(e&&n)){(_&255)>>>0<=191&&(Q2(),C2()),k2(i- -64|0,0,293),f[i+56|0]=121,f[i+57|0]=33,f[i+58|0]=126,f[i+59|0]=19,f[i+60|0]=25,f[i+61|0]=205,f[i+62|0]=224,f[i+63|0]=91,f[i+48|0]=107,f[i+49|0]=189,f[i+50|0]=65,f[i+51|0]=251,f[i+52|0]=171,f[i+53|0]=217,f[i+54|0]=131,f[i+55|0]=31,f[i+40|0]=31,f[i+41|0]=108,f[i+42|0]=62,f[i+43|0]=43,f[i+44|0]=140,f[i+45|0]=104,f[i+46|0]=5,f[i+47|0]=155,f[i+32|0]=209,f[i+33|0]=130,f[i+34|0]=230,f[i+35|0]=173,f[i+36|0]=127,f[i+37|0]=82,f[i+38|0]=14,f[i+39|0]=81,f[i+24|0]=241,f[i+25|0]=54,f[i+26|0]=29,f[i+27|0]=95,f[i+28|0]=58,f[i+29|0]=245,f[i+30|0]=79,f[i+31|0]=165,f[i+16|0]=43,f[i+17|0]=248,f[i+18|0]=148,f[i+19|0]=254,f[i+20|0]=114,f[i+21|0]=243,f[i+22|0]=110,f[i+23|0]=60,f[i+8|0]=59,f[i+9|0]=167,f[i+10|0]=202,f[i+11|0]=132,f[i+12|0]=133,f[i+13|0]=174,f[i+14|0]=103,f[i+15|0]=187,n=r^-222443256,f[i|0]=n,f[i+1|0]=n>>>8,f[i+2|0]=n>>>16,f[i+3|0]=n>>>24,f[i+4|0]=103,f[i+5|0]=230,f[i+6|0]=9,f[i+7|0]=106;break e}A=X-128|0,X=A;r:{if(!(!n|(r-65&255)>>>0<=191|(e-65&255)>>>0<=191)){k2(i- -64|0,0,293),f[i+56|0]=121,f[i+57|0]=33,f[i+58|0]=126,f[i+59|0]=19,f[i+60|0]=25,f[i+61|0]=205,f[i+62|0]=224,f[i+63|0]=91,f[i+48|0]=107,f[i+49|0]=189,f[i+50|0]=65,f[i+51|0]=251,f[i+52|0]=171,f[i+53|0]=217,f[i+54|0]=131,f[i+55|0]=31,f[i+40|0]=31,f[i+41|0]=108,f[i+42|0]=62,f[i+43|0]=43,f[i+44|0]=140,f[i+45|0]=104,f[i+46|0]=5,f[i+47|0]=155,f[i+32|0]=209,f[i+33|0]=130,f[i+34|0]=230,f[i+35|0]=173,f[i+36|0]=127,f[i+37|0]=82,f[i+38|0]=14,f[i+39|0]=81,f[i+24|0]=241,f[i+25|0]=54,f[i+26|0]=29,f[i+27|0]=95,f[i+28|0]=58,f[i+29|0]=245,f[i+30|0]=79,f[i+31|0]=165,f[i+16|0]=43,f[i+17|0]=248,f[i+18|0]=148,f[i+19|0]=254,f[i+20|0]=114,f[i+21|0]=243,f[i+22|0]=110,f[i+23|0]=60,f[i+8|0]=59,f[i+9|0]=167,f[i+10|0]=202,f[i+11|0]=132,f[i+12|0]=133,f[i+13|0]=174,f[i+14|0]=103,f[i+15|0]=187,r=(e<<8|r)^-222443256,f[i|0]=r,f[i+1|0]=r>>>8,f[i+2|0]=r>>>16,f[i+3|0]=r>>>24,r=e>>>24^1779033703,f[i+4|0]=r,f[i+5|0]=r>>>8,f[i+6|0]=r>>>16,f[i+7|0]=r>>>24,k2(A,0,128),e&&_2(A,n,e),_2(i+96|0,A,128),f[i+352|0]=128,f[i+353|0]=0,f[i+354|0]=0,f[i+355|0]=0,N0(A,128),X=A+128|0;break r}Q2(),C2()}}A=0}return A|0}function Ee(i,n,e,r){i=i|0,n=n|0,e=e|0,r=r|0;var A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0;e:{if(!r){A=1797285236,a=2036477234,u=857760878,r=1634760805;break e}A=o[r+12|0]|o[r+13|0]<<8|(o[r+14|0]<<16|o[r+15|0]<<24),a=o[r+8|0]|o[r+9|0]<<8|(o[r+10|0]<<16|o[r+11|0]<<24),u=o[r+4|0]|o[r+5|0]<<8|(o[r+6|0]<<16|o[r+7|0]<<24),r=o[r|0]|o[r+1|0]<<8|(o[r+2|0]<<16|o[r+3|0]<<24)}for(_=o[n+12|0]|o[n+13|0]<<8|(o[n+14|0]<<16|o[n+15|0]<<24),h=o[n+8|0]|o[n+9|0]<<8|(o[n+10|0]<<16|o[n+11|0]<<24),s=o[n+4|0]|o[n+5|0]<<8|(o[n+6|0]<<16|o[n+7|0]<<24),D=o[e+28|0]|o[e+29|0]<<8|(o[e+30|0]<<16|o[e+31|0]<<24),I=o[e+24|0]|o[e+25|0]<<8|(o[e+26|0]<<16|o[e+27|0]<<24),M=20,q=o[e+20|0]|o[e+21|0]<<8|(o[e+22|0]<<16|o[e+23|0]<<24),S=o[e+16|0]|o[e+17|0]<<8|(o[e+18|0]<<16|o[e+19|0]<<24),v=o[e+12|0]|o[e+13|0]<<8|(o[e+14|0]<<16|o[e+15|0]<<24),g=o[e+8|0]|o[e+9|0]<<8|(o[e+10|0]<<16|o[e+11|0]<<24),w=o[e+4|0]|o[e+5|0]<<8|(o[e+6|0]<<16|o[e+7|0]<<24),n=o[n|0]|o[n+1|0]<<8|(o[n+2|0]<<16|o[n+3|0]<<24),e=o[e|0]|o[e+1|0]<<8|(o[e+2|0]<<16|o[e+3|0]<<24);B=t0(e+u|0,7)^_,Y=t0(B+u|0,9)^I,v=t0(r+q|0,7)^v,N=t0(v+r|0,9)^h,Q=t0(N+v|0,13)^q,g=t0(A+S|0,7)^g,s=t0(g+A|0,9)^s,h=t0(s+g|0,13)^S,A=t0(s+h|0,18)^A,_=t0(n+a|0,7)^D,q=Q^t0(A+_|0,7),I=Y^t0(q+A|0,9),D=t0(q+I|0,13)^_,A=t0(I+D|0,18)^A,w=t0(_+a|0,9)^w,G=t0(w+_|0,13)^n,n=t0(G+w|0,18)^a,S=t0(n+B|0,7)^h,h=t0(S+n|0,9)^N,_=t0(h+S|0,13)^B,a=t0(_+h|0,18)^n,B=t0(B+Y|0,13)^e,e=t0(B+Y|0,18)^u,n=t0(e+v|0,7)^G,s=t0(n+e|0,9)^s,v=t0(n+s|0,13)^v,u=t0(s+v|0,18)^e,r=t0(N+Q|0,18)^r,e=t0(r+g|0,7)^B,w=t0(e+r|0,9)^w,g=t0(e+w|0,13)^g,r=t0(w+g|0,18)^r,B=M>>>0>2,M=M-2|0,!!B;);return f[i|0]=r,f[i+1|0]=r>>>8,f[i+2|0]=r>>>16,f[i+3|0]=r>>>24,f[i+28|0]=_,f[i+29|0]=_>>>8,f[i+30|0]=_>>>16,f[i+31|0]=_>>>24,f[i+24|0]=h,f[i+25|0]=h>>>8,f[i+26|0]=h>>>16,f[i+27|0]=h>>>24,f[i+20|0]=s,f[i+21|0]=s>>>8,f[i+22|0]=s>>>16,f[i+23|0]=s>>>24,f[i+16|0]=n,f[i+17|0]=n>>>8,f[i+18|0]=n>>>16,f[i+19|0]=n>>>24,f[i+12|0]=A,f[i+13|0]=A>>>8,f[i+14|0]=A>>>16,f[i+15|0]=A>>>24,f[i+8|0]=a,f[i+9|0]=a>>>8,f[i+10|0]=a>>>16,f[i+11|0]=a>>>24,f[i+4|0]=u,f[i+5|0]=u>>>8,f[i+6|0]=u>>>16,f[i+7|0]=u>>>24,0}function ar(i,n){var e=0,r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0,z=0,$=0,V=0,W=0,e0=0;D=o[n+31|0],M=o[n+30|0],Y=o[n+29|0],N=o[n+6|0],Q=o[n+5|0],G=o[n+4|0],K=o[n+9|0],z=o[n+8|0],$=o[n+7|0],V=o[n+12|0],v=o[n+11|0],g=o[n+10|0],S=o[n+15|0],w=o[n+14|0],W=o[n+13|0],a=o[n+28|0],B=o[n+27|0],u=o[n+26|0],h=o[n+25|0],_=o[n+24|0],A=o[n+23|0],e0=o[n|0]|o[n+1|0]<<8|(o[n+2|0]<<16|o[n+3|0]<<24),r=o[n+21|0],s=r<<15,r=e,e=s,s=o[n+20|0],q=e|s<<7,s=r|r,e=o[n+22|0],e=e<<23|q,r=r|s,I=o[n+16|0]|o[n+17|0]<<8|(o[n+18|0]<<16|o[n+19|0]<<24),n=0,s=e,q=I+16777216|0,n=q>>>0<16777216?1:n,e=(n&33554431)<<7|q>>>25,s=s+e|0,n=(n>>>25|0)+r|0,r=s,e=r>>>0<e>>>0?n+1|0:n,s=r+33554432|0,n=s>>>0<33554432?e+1|0:e,t[i+24>>2]=r-(s&-67108864),r=A>>>27|0,A=_<<13|A<<5,e=r|_>>>19|h>>>11,r=n,_=h<<21|A,r=(r&67108863)<<6|s>>>26,A=_+r|0,r=A,n=e,A=_+16777216|0,e=A>>>0<16777216?n+1|0:n,t[i+28>>2]=r-(A&1040187392),r=B>>>20|u>>>28|a>>>12,n=e,e=n>>>25|0,n=(n&33554431)<<7|A>>>25,A=n+(B<<12|u<<4|a<<20)|0,r=e+r|0,e=A,r=e>>>0<n>>>0?r+1|0:r,n=r,a=e+33554432|0,A=a>>>0<33554432?n+1|0:n,t[i+32>>2]=e-(a&-67108864),u=I-(q&-33554432)|0,_=w<<10|W<<2|S<<18,h=w>>>22|S>>>14,e=v>>>21|g>>>29,v=v<<11|g<<3|V<<19,B=v+16777216|0,r=B>>>0<16777216?e+1|0:e,n=r>>>25|0,e=_,_=(r&33554431)<<7|B>>>25,r=e+_|0,e=n+h|0,e=r>>>0<_>>>0?e+1|0:e,n=e,_=r+33554432|0,n=_>>>0<33554432?n+1|0:n,e=_,_=((n&67108863)<<6|e>>>26)+u|0,t[i+20>>2]=_,t[i+16>>2]=r-(e&-67108864),_=z<<13|$<<5|K<<21,h=0,g=Q<<14|G<<6|N<<22,e=0,u=g+16777216|0,e=u>>>0<16777216?e+1|0:e,r=e>>>25|0,n=_,_=(e&33554431)<<7|u>>>25,e=n+_|0,n=r+h|0,n=e>>>0<_>>>0?n+1|0:n,h=e+33554432|0,r=h>>>0<33554432?n+1|0:n,t[i+8>>2]=e-(h&-67108864),w=D<<18&33292288|(M<<10|Y<<2),e=0,A=(A&67108863)<<6|a>>>26,a=A+w|0,n=e,A=w+16777216|0,e=A>>>0<16777216?n+1|0:n,t[i+36>>2]=a-(A&33554432),r=v+((r&67108863)<<6|h>>>26)|0,t[i+12>>2]=r-(B&234881024),_=g-(u&2113929216)|0,n=e,e=n>>>25|0,r=T((n&33554431)<<7|A>>>25,e,19,0),e=r+e0|0,n=c,r=e>>>0<r>>>0?n+1|0:n,n=e+33554432|0,r=n>>>0<33554432?r+1|0:r,A=((r&67108863)<<6|n>>>26)+_|0,t[i+4>>2]=A,t[i>>2]=e-(n&-67108864)}function a1(i,n,e,r){var A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0;q=X-704|0,X=q;e:{if(!(e|r))break e;if(s=t[i+76>>2],_=s,s=(r<<3|e>>>29)+_|0,B=t[i+72>>2],a=e<<3,h=B+a|0,t[i+72>>2]=h,s=h>>>0<a>>>0?s+1|0:s,t[i+76>>2]=s,A=i- -64|0,a=A,h=(_|0)==(s|0)&h>>>0<B>>>0|_>>>0>s>>>0,s=t[A+4>>2],D=h,h=h+t[A>>2]|0,A=D>>>0>h>>>0?s+1|0:s,u=r>>>29|0,h=u+h|0,t[a>>2]=h,t[a+4>>2]=h>>>0<u>>>0?A+1|0:A,h=i+80|0,a=((_&7)<<29|B>>>3)&127,s=a,A=128-s|0,B=A,u=0,D=0-(u+(s>>>0>128)|0)|0,s=D,(r|0)==(s|0)&e>>>0>=A>>>0|r>>>0>s>>>0){M=A&3,_=0,s=0;r:{if(!u&(a^127)>>>0>=3|u){for(u=A&252;A=_+a|0,f[A+h|0]=o[n+_|0],A=_|1,I=a+A|0,f[h+I|0]=o[n+A|0],A=_|2,I=a+A|0,f[h+I|0]=o[n+A|0],A=_|3,I=a+A|0,f[h+I|0]=o[n+A|0],_=_+4|0,s=_>>>0<4?s+1|0:s,A=S,g=g+4|0,A=g>>>0<4?A+1|0:A,S=A,!!((u|0)!=(g|0)|(w|0)!=(A|0)););if(!(M|Y))break r}for(;A=_+a|0,f[A+h|0]=o[n+_|0],A=s,_=_+1|0,s=_?A:A+1|0,A=w,v=v+1|0,A=v?A:A+1|0,w=A,!!((v|0)!=(M|0)|(Y|0)!=(A|0)););}if(_=q+640|0,Bn(i,h,q,_),n=n+B|0,r=r-((e>>>0<B>>>0)+D|0)|0,e=e-B|0,!r&e>>>0>127|r)for(;Bn(i,n,q,_),n=n+128|0,r=r-(e>>>0<128)|0,e=e-128|0,!!(!r&e>>>0>127|r););r:{if(!(e|r))break r;if(i=e&3,S=0,v=0,w=0,_=0,s=0,!r&e>>>0>=4|r){for(g=e&124,B=0,e=0,r=0;f[_+h|0]=o[n+_|0],A=_|1,f[A+h|0]=o[n+A|0],A=_|2,f[A+h|0]=o[n+A|0],A=_|3,f[A+h|0]=o[n+A|0],A=s,_=_+4|0,s=_>>>0<4?A+1|0:A,A=r,e=e+4|0,A=e>>>0<4?A+1|0:A,r=A,!!((e|0)!=(g|0)|(B|0)!=(A|0)););if(!(i|S))break r}for(;f[_+h|0]=o[n+_|0],_=_+1|0,s=_?s:s+1|0,A=w,v=v+1|0,A=v?A:A+1|0,w=A,!!((i|0)!=(v|0)|(S|0)!=(A|0)););}N0(q,704);break e}if(i=e&3,B=0,_=0,s=0,!r&e>>>0>=4|r){for(e=e&-4;A=_+a|0,f[A+h|0]=o[n+_|0],A=_|1,u=a+A|0,f[h+u|0]=o[n+A|0],A=_|2,u=a+A|0,f[h+u|0]=o[n+A|0],A=_|3,u=a+A|0,f[h+u|0]=o[n+A|0],_=_+4|0,s=_>>>0<4?s+1|0:s,A=S,g=g+4|0,A=g>>>0<4?A+1|0:A,S=A,!!((e|0)!=(g|0)|(r|0)!=(A|0)););if(!(i|B))break e}for(;e=_+a|0,f[e+h|0]=o[n+_|0],_=_+1|0,s=_?s:s+1|0,A=w,v=v+1|0,A=v?A:A+1|0,w=A,!!((i|0)!=(v|0)|(B|0)!=(A|0)););}return X=q+704|0,0}function zi(i,n){i=i|0,n=n|0;var e=0,r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0;for(e=X-736|0,X=e,h=e+704|0,x0(h,n,n),A=e+224|0,x0(A,n,h),s=e+672|0,x0(s,n,A),_=e+640|0,x0(_,s,s),u=e+416|0,x0(u,h,_),h=e+320|0,x0(h,n,u),r=e+608|0,x0(r,_,_),_=e+288|0,x0(_,h,h),a=e+576|0,x0(a,u,_),g=e+448|0,x0(g,r,_),B=e+544|0,x0(B,a,a),a=e+384|0,x0(a,r,B),v=e+352|0,x0(v,A,a),A=e+192|0,x0(A,r,v),r=e+160|0,x0(r,s,A),x0(e+96|0,s,r),A=e+512|0,x0(A,B,v),r=e+480|0,x0(r,s,A),A=e+256|0,x0(A,g,r),x0(e+128|0,_,A),_=e- -64|0,x0(_,a,r),r=e+32|0,x0(r,s,_),x0(e,u,r),x0(i,h,e),s=0;x0(i,i,i),s=s+1|0,(s|0)!=126;);return x0(i,i,e+352|0),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,e+704|0),x0(i,i,e),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,e+160|0),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,e),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,e+256|0),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,e- -64|0),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,e+96|0),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,e+320|0),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,e+512|0),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,e+192|0),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,e+480|0),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,e),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,e+128|0),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,i),x0(i,i,e+32|0),X=e+736|0,0-j1(n,32)|0}function Zi(i,n,e){i=i|0,n=n|0,e=e|0;var r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0;return B=X-160|0,X=B,Gr(n,e,32,0),f[n|0]=o[n|0]&248,f[n+31|0]=o[n+31|0]&63|64,Qr(B,n),be(i,B),_=e,s=o[_|0]|o[_+1|0]<<8|(o[_+2|0]<<16|o[_+3|0]<<24),A=o[_+4|0]|o[_+5|0]<<8|(o[_+6|0]<<16|o[_+7|0]<<24),h=o[_+8|0]|o[_+9|0]<<8|(o[_+10|0]<<16|o[_+11|0]<<24),a=o[_+12|0]|o[_+13|0]<<8|(o[_+14|0]<<16|o[_+15|0]<<24),u=o[_+16|0]|o[_+17|0]<<8|(o[_+18|0]<<16|o[_+19|0]<<24),e=o[_+20|0]|o[_+21|0]<<8|(o[_+22|0]<<16|o[_+23|0]<<24),v=o[_+28|0]|o[_+29|0]<<8|(o[_+30|0]<<16|o[_+31|0]<<24),r=n,n=o[_+24|0]|o[_+25|0]<<8|(o[_+26|0]<<16|o[_+27|0]<<24),f[r+24|0]=n,f[r+25|0]=n>>>8,f[r+26|0]=n>>>16,f[r+27|0]=n>>>24,f[r+28|0]=v,f[r+29|0]=v>>>8,f[r+30|0]=v>>>16,f[r+31|0]=v>>>24,f[r+16|0]=u,f[r+17|0]=u>>>8,f[r+18|0]=u>>>16,f[r+19|0]=u>>>24,f[r+20|0]=e,f[r+21|0]=e>>>8,f[r+22|0]=e>>>16,f[r+23|0]=e>>>24,f[r+8|0]=h,f[r+9|0]=h>>>8,f[r+10|0]=h>>>16,f[r+11|0]=h>>>24,f[r+12|0]=a,f[r+13|0]=a>>>8,f[r+14|0]=a>>>16,f[r+15|0]=a>>>24,f[r|0]=s,f[r+1|0]=s>>>8,f[r+2|0]=s>>>16,f[r+3|0]=s>>>24,f[r+4|0]=A,f[r+5|0]=A>>>8,f[r+6|0]=A>>>16,f[r+7|0]=A>>>24,A=i,h=o[A|0]|o[A+1|0]<<8|(o[A+2|0]<<16|o[A+3|0]<<24),a=o[A+4|0]|o[A+5|0]<<8|(o[A+6|0]<<16|o[A+7|0]<<24),u=o[A+8|0]|o[A+9|0]<<8|(o[A+10|0]<<16|o[A+11|0]<<24),e=o[A+12|0]|o[A+13|0]<<8|(o[A+14|0]<<16|o[A+15|0]<<24),n=o[A+16|0]|o[A+17|0]<<8|(o[A+18|0]<<16|o[A+19|0]<<24),i=o[A+20|0]|o[A+21|0]<<8|(o[A+22|0]<<16|o[A+23|0]<<24),s=o[A+28|0]|o[A+29|0]<<8|(o[A+30|0]<<16|o[A+31|0]<<24),A=o[A+24|0]|o[A+25|0]<<8|(o[A+26|0]<<16|o[A+27|0]<<24),f[r+56|0]=A,f[r+57|0]=A>>>8,f[r+58|0]=A>>>16,f[r+59|0]=A>>>24,f[r+60|0]=s,f[r+61|0]=s>>>8,f[r+62|0]=s>>>16,f[r+63|0]=s>>>24,f[r+48|0]=n,f[r+49|0]=n>>>8,f[r+50|0]=n>>>16,f[r+51|0]=n>>>24,f[r+52|0]=i,f[r+53|0]=i>>>8,f[r+54|0]=i>>>16,f[r+55|0]=i>>>24,f[r+40|0]=u,f[r+41|0]=u>>>8,f[r+42|0]=u>>>16,f[r+43|0]=u>>>24,f[r+44|0]=e,f[r+45|0]=e>>>8,f[r+46|0]=e>>>16,f[r+47|0]=e>>>24,f[r+32|0]=h,f[r+33|0]=h>>>8,f[r+34|0]=h>>>16,f[r+35|0]=h>>>24,f[r+36|0]=a,f[r+37|0]=a>>>8,f[r+38|0]=a>>>16,f[r+39|0]=a>>>24,X=B+160|0,0}function He(i,n,e){var r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0;q=t[n+4>>2],r=t[i+4>>2],S=t[n+8>>2],A=t[i+8>>2],I=t[n+12>>2],_=t[i+12>>2],D=t[n+16>>2],s=t[i+16>>2],M=t[n+20>>2],h=t[i+20>>2],Y=t[n+24>>2],a=t[i+24>>2],w=t[n+28>>2],u=t[i+28>>2],N=t[n+32>>2],B=t[i+32>>2],Q=t[n+36>>2],v=t[i+36>>2],e=0-e|0,g=t[i>>2],t[i>>2]=e&(g^t[n>>2])^g,t[i+36>>2]=v^e&(v^Q),t[i+32>>2]=B^e&(B^N),t[i+28>>2]=u^e&(u^w),t[i+24>>2]=a^e&(a^Y),t[i+20>>2]=h^e&(h^M),t[i+16>>2]=s^e&(s^D),t[i+12>>2]=_^e&(_^I),t[i+8>>2]=A^e&(A^S),t[i+4>>2]=r^e&(r^q),r=t[i+40>>2],q=t[n+40>>2],A=t[i+44>>2],S=t[n+44>>2],_=t[i+48>>2],I=t[n+48>>2],s=t[i+52>>2],D=t[n+52>>2],h=t[i+56>>2],M=t[n+56>>2],a=t[i+60>>2],Y=t[n+60>>2],w=i- -64|0,u=t[w>>2],N=t[n- -64>>2],B=t[i+68>>2],Q=t[n+68>>2],v=t[i+72>>2],g=t[n+72>>2],G=t[i+76>>2],t[i+76>>2]=G^e&(t[n+76>>2]^G),t[i+72>>2]=v^e&(v^g),t[i+68>>2]=B^e&(B^Q),t[w>>2]=u^e&(u^N),t[i+60>>2]=a^e&(a^Y),t[i+56>>2]=h^e&(h^M),t[i+52>>2]=s^e&(s^D),t[i+48>>2]=_^e&(_^I),t[i+44>>2]=A^e&(A^S),t[i+40>>2]=r^e&(r^q),r=t[i+80>>2],q=t[n+80>>2],A=t[i+84>>2],S=t[n+84>>2],_=t[i+88>>2],I=t[n+88>>2],s=t[i+92>>2],D=t[n+92>>2],h=t[i+96>>2],M=t[n+96>>2],a=t[i+100>>2],Y=t[n+100>>2],u=t[i+104>>2],w=t[n+104>>2],B=t[i+108>>2],N=t[n+108>>2],v=t[i+112>>2],Q=t[n+112>>2],g=t[i+116>>2],t[i+116>>2]=e&(g^t[n+116>>2])^g,t[i+112>>2]=v^e&(v^Q),t[i+108>>2]=B^e&(B^N),t[i+104>>2]=u^e&(u^w),t[i+100>>2]=a^e&(a^Y),t[i+96>>2]=h^e&(h^M),t[i+92>>2]=s^e&(s^D),t[i+88>>2]=_^e&(_^I),t[i+84>>2]=A^e&(A^S),t[i+80>>2]=r^e&(r^q),r=t[i+120>>2],q=t[n+120>>2],A=t[i+124>>2],S=t[n+124>>2],_=t[i+128>>2],I=t[n+128>>2],s=t[i+132>>2],D=t[n+132>>2],h=t[i+136>>2],M=t[n+136>>2],a=t[i+140>>2],Y=t[n+140>>2],u=t[i+144>>2],w=t[n+144>>2],B=t[i+148>>2],N=t[n+148>>2],v=t[i+152>>2],Q=t[n+152>>2],g=t[n+156>>2],n=t[i+156>>2],t[i+156>>2]=e&(g^n)^n,t[i+152>>2]=v^e&(v^Q),t[i+148>>2]=B^e&(B^N),t[i+144>>2]=u^e&(u^w),t[i+140>>2]=a^e&(a^Y),t[i+136>>2]=h^e&(h^M),t[i+132>>2]=s^e&(s^D),t[i+128>>2]=_^e&(_^I),t[i+124>>2]=A^e&(A^S),t[i+120>>2]=r^e&(r^q)}function m6(i,n,e,r,A,_,s,h){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0,_=_|0,s=s|0,h=h|0;var a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0;if((h&-7)==1){e:{r:{t:{n:{A:{i:{s:{if(r){_:{l:{if(h>>>0<=3){for(;;){v=a;o:{h:{u:{y:{for(;;){if(B=f[e+v|0],u=B-65|0,u=u&(B-91&(u^-1))>>>8&255|(B+4&(B-58&(B+65488^-1))>>>8&255|(B+185&(B-123&(B+65439^-1))>>>8&255|(((B^16336)+1^-1)>>>8&63|((B^16340)+1^-1)>>>8&62))),u=(u-1&(B^65470)+1)>>>8&255|u,(u|0)!=255)break y;if(u=0,!A)break _;if(Xr(A,B)){if(v=v+1|0,v>>>0>=r>>>0)break u;continue}break}a=v;break _}if(q=u+(q<<6)|0,g>>>0>1)break h;g=g+6|0;break o}i=a+1|0,a=i>>>0<r>>>0?r:i;break _}if(g=g-2|0,n>>>0<=w>>>0)break l;f[i+w|0]=q>>>g,w=w+1|0}if(u=0,a=v+1|0,!(a>>>0<r>>>0))break}break _}for(;;){o:{if(B=f[e+v|0],u=B-65|0,u=u&(B-91&(u^-1))>>>8&255|(B+4&(B-58&(B+65488^-1))>>>8&255|(B+185&(B-123&(B+65439^-1))>>>8&255|(((B^16288)+1^-1)>>>8&63|((B^16338)+1^-1)>>>8&62))),u=(u-1&(B^65470)+1)>>>8&255|u,(u|0)==255){if(u=0,!A)break _;if(Xr(A,B)){if(v=v+1|0,v>>>0>=r>>>0)break o;continue}a=v;break _}q=u+(q<<6)|0;h:{if(g>>>0<2){g=g+6|0;break h}if(g=g-2|0,n>>>0<=w>>>0)break l;f[i+w|0]=q>>>g,w=w+1|0}if(u=0,a=v+1|0,a>>>0>=r>>>0)break _;v=a;continue}break}i=a+1|0,a=i>>>0<r>>>0?r:i;break _}a=v,t[10172]=68,u=1}if(g>>>0>4)break s;i=a}else i=0;if(v=-1,u){a=i;break e}if((-1<<g^-1)&q){a=i;break e}_:{if(h&2||(u=g>>>1|0,!u))break _;if(!A)break A;for(a=i>>>0>r>>>0?i:r;;){if((i|0)==(a|0)){A=68;break n}l:{if(n=f[i+e|0],(n|0)==61){u=u-1|0;break l}if(Xr(A,n))break l;A=28,a=i;break n}if(i=i+1|0,!u)break}}if(v=0,!A|i>>>0>=r>>>0)break i;for(;;){if(!Xr(A,f[i+e|0]))break i;if(i=i+1|0,(r|0)==(i|0))break}a=r;break r}v=-1;break e}a=i;break r}if(A=68,i>>>0>=r>>>0){a=i;break n}if(A=28,o[i+e|0]!=61){a=i;break n}if(a=i+1|0,(u|0)==1){v=0;break r}if((r|0)==(a|0)){a=i>>>0>r>>>0?i:r,A=68;break n}if(o[e+a|0]==61)break t}t[10172]=A;break e}a=i+2|0,v=0}S=w}e:{if(s){t[s>>2]=e+a;break e}if((r|0)==(a|0))break e;t[10172]=28,v=-1}return _&&(t[_>>2]=S),v|0}Q2(),C2()}function q6(i,n,e){var r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0;return r=X-320|0,X=r,A=r+240|0,U(A,e),A0(A,A,e),U(i,A),A0(i,i,e),A0(i,i,n),P6(i,i),A0(i,i,A),A0(i,i,n),A=r+192|0,U(A,i),A0(A,A,e),_=t[n+4>>2],w=t[n+8>>2],S=t[n+12>>2],I=t[n+16>>2],D=t[n+20>>2],M=t[n+24>>2],Y=t[n+28>>2],N=t[n+32>>2],Q=t[n>>2],e=t[r+192>>2],A=t[r+196>>2],s=t[r+200>>2],h=t[r+204>>2],a=t[r+208>>2],u=t[r+212>>2],B=t[r+216>>2],v=t[r+220>>2],g=t[r+224>>2],q=t[r+228>>2],G=t[n+36>>2],t[r+180>>2]=q-G,t[r+176>>2]=g-N,t[r+172>>2]=v-Y,t[r+168>>2]=B-M,t[r+164>>2]=u-D,t[r+160>>2]=a-I,t[r+156>>2]=h-S,t[r+152>>2]=s-w,t[r+148>>2]=A-_,t[r+144>>2]=e-Q,t[r+132>>2]=q+G,t[r+128>>2]=g+N,t[r+124>>2]=v+Y,t[r+120>>2]=B+M,t[r+116>>2]=u+D,t[r+112>>2]=a+I,t[r+108>>2]=h+S,t[r+104>>2]=s+w,t[r+100>>2]=A+_,t[r+96>>2]=e+Q,_=r+48|0,A0(_,n,1632),t[r+84>>2]=q+t[r+84>>2],t[r+80>>2]=g+t[r+80>>2],t[r+76>>2]=v+t[r+76>>2],t[r+72>>2]=B+t[r+72>>2],t[r+68>>2]=u+t[r+68>>2],t[r+64>>2]=a+t[r+64>>2],t[r+60>>2]=h+t[r+60>>2],t[r+56>>2]=s+t[r+56>>2],t[r+52>>2]=A+t[r+52>>2],t[r+48>>2]=e+t[r+48>>2],V2(r,r+144|0),S=j1(r,32),V2(r,r+96|0),w=j1(r,32),V2(r,_),n=j1(r,32),A0(r,i,1632),g=t[i+4>>2],v=t[i+8>>2],B=t[i+12>>2],u=t[i+16>>2],a=t[i+20>>2],h=t[i+24>>2],s=t[i+28>>2],A=t[i+32>>2],_=t[i>>2],I=t[r>>2],D=t[r+4>>2],M=t[r+8>>2],Y=t[r+12>>2],N=t[r+16>>2],Q=t[r+20>>2],q=t[r+24>>2],G=t[r+28>>2],K=t[r+32>>2],n=0-(n|w)|0,e=t[i+36>>2],e=n&(e^t[r+36>>2])^e,t[i+36>>2]=e,A=A^n&(A^K),t[i+32>>2]=A,s=s^n&(s^G),t[i+28>>2]=s,h=h^n&(h^q),t[i+24>>2]=h,a=a^n&(a^Q),t[i+20>>2]=a,u=u^n&(u^N),t[i+16>>2]=u,B=B^n&(B^Y),t[i+12>>2]=B,v=v^n&(v^M),t[i+8>>2]=v,g=g^n&(g^D),t[i+4>>2]=g,_=_^n&(_^I),t[i>>2]=_,V2(r+288|0,i),n=0-(f[r+288|0]&1)|0,t[i+36>>2]=e^n&(e^0-e),t[i+32>>2]=A^n&(A^0-A),t[i+28>>2]=s^n&(s^0-s),t[i+24>>2]=h^n&(h^0-h),t[i+20>>2]=a^n&(a^0-a),t[i+16>>2]=u^n&(u^0-u),t[i+12>>2]=B^n&(B^0-B),t[i+8>>2]=v^n&(v^0-v),t[i+4>>2]=g^n&(g^0-g),t[i>>2]=_^n&(_^0-_),X=r+320|0,w|S}function Br(i,n){var e=0,r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0,z=0,$=0;return e=X-320|0,X=e,K=i+40|0,ar(K,n),t[i+84>>2]=0,t[i+88>>2]=0,t[i+80>>2]=1,t[i+92>>2]=0,t[i+96>>2]=0,t[i+100>>2]=0,t[i+104>>2]=0,t[i+108>>2]=0,t[i+112>>2]=0,t[i+116>>2]=0,r=e+240|0,U(r,K),A=e+192|0,A0(A,r,1584),t[e+192>>2]=t[e+192>>2]+1,_=t[e+240>>2]-1|0,t[e+240>>2]=_,s=t[e+244>>2],h=t[e+248>>2],a=t[e+252>>2],u=t[e+256>>2],B=t[e+260>>2],v=t[e+264>>2],g=t[e+268>>2],w=t[e+272>>2],q=t[e+276>>2],A0(i,r,A),P6(i,i),A0(i,r,i),r=e+144|0,U(r,i),A0(r,r,A),r=t[e+180>>2],t[e+132>>2]=r-q,A=t[e+176>>2],t[e+128>>2]=A-w,S=t[e+172>>2],t[e+124>>2]=S-g,I=t[e+168>>2],t[e+120>>2]=I-v,D=t[e+164>>2],t[e+116>>2]=D-B,M=t[e+160>>2],t[e+112>>2]=M-u,Y=t[e+156>>2],t[e+108>>2]=Y-a,N=t[e+152>>2],t[e+104>>2]=N-h,Q=t[e+148>>2],t[e+100>>2]=Q-s,G=t[e+144>>2],t[e+96>>2]=G-_,t[e+84>>2]=r+q,t[e+80>>2]=A+w,t[e+76>>2]=g+S,t[e+72>>2]=v+I,t[e+68>>2]=B+D,t[e+64>>2]=u+M,t[e+60>>2]=a+Y,t[e+56>>2]=h+N,t[e+52>>2]=s+Q,t[e+48>>2]=_+G,V2(e,e+96|0),w=j1(e,32),V2(e,e+48|0),S=j1(e,32),A0(e,i,1632),g=t[i+4>>2],v=t[i+8>>2],B=t[i+12>>2],u=t[i+16>>2],a=t[i+20>>2],h=t[i+24>>2],s=t[i+28>>2],_=t[i+32>>2],q=t[i>>2],I=t[e>>2],D=t[e+4>>2],M=t[e+8>>2],Y=t[e+12>>2],N=t[e+16>>2],Q=t[e+20>>2],G=t[e+24>>2],z=t[e+28>>2],$=t[e+32>>2],r=w-1|0,A=t[i+36>>2],A=r&(A^t[e+36>>2])^A,t[i+36>>2]=A,_=_^r&(_^$),t[i+32>>2]=_,s=s^r&(s^z),t[i+28>>2]=s,h=h^r&(h^G),t[i+24>>2]=h,a=a^r&(a^Q),t[i+20>>2]=a,u=u^r&(u^N),t[i+16>>2]=u,B=B^r&(B^Y),t[i+12>>2]=B,v=v^r&(v^M),t[i+8>>2]=v,g=g^r&(g^D),t[i+4>>2]=g,r=q^r&(q^I),t[i>>2]=r,V2(e+288|0,i),n=0-(f[e+288|0]&1^o[n+31|0]>>>7^o[41218]>>>2)|0,t[i+36>>2]=A^n&(A^0-A),t[i+32>>2]=_^n&(_^0-_),t[i+28>>2]=s^n&(s^0-s),t[i+24>>2]=h^n&(h^0-h),t[i+20>>2]=a^n&(a^0-a),t[i+16>>2]=u^n&(u^0-u),t[i+12>>2]=B^n&(B^0-B),t[i+8>>2]=v^n&(v^0-v),t[i+4>>2]=g^n&(g^0-g),t[i>>2]=r^n&(r^0-r),A0(i+120|0,i,K),X=e+320|0,(w|S)-1|0}function v1(i,n){var e=0,r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0,z=0,$=0,V=0,W=0,e0=0,i0=0,o0=0,s0=0,h0=0,u0=0;e=X-48|0,X=e,U(i,n),U(i+80|0,n+40|0),xi(i+120|0,n+80|0),a=t[n+40>>2],A=t[n+44>>2],r=t[n+4>>2],_=t[n+48>>2],u=t[n+8>>2],s=t[n+52>>2],B=t[n+12>>2],h=t[n+56>>2],S=t[n+16>>2],v=t[n+60>>2],I=t[n+20>>2],g=t[n- -64>>2],D=t[n+24>>2],w=t[n+68>>2],M=t[n+28>>2],q=t[n+72>>2],Y=t[n+32>>2],Q=t[n>>2],t[i+76>>2]=t[n+76>>2]+t[n+36>>2],t[i+72>>2]=q+Y,t[i+68>>2]=w+M,G=i- -64|0,t[G>>2]=g+D,t[i+60>>2]=v+I,t[i+56>>2]=h+S,t[i+52>>2]=s+B,t[i+48>>2]=_+u,t[i+44>>2]=A+r,n=i+40|0,t[n>>2]=a+Q,U(e,n),a=t[i+80>>2],A=t[i+4>>2],r=t[i+84>>2],_=t[i+8>>2],u=t[i+88>>2],s=t[i+12>>2],B=t[i+92>>2],h=t[i+16>>2],S=t[i+96>>2],v=t[i+20>>2],I=t[i+100>>2],g=t[i+24>>2],D=t[i+104>>2],w=t[i+28>>2],M=t[i+108>>2],q=t[i+32>>2],Y=t[i+112>>2],Q=t[i>>2],N=t[i+116>>2],K=t[i+36>>2],z=N-K|0,t[i+116>>2]=z,$=Y-q|0,t[i+112>>2]=$,V=M-w|0,t[i+108>>2]=V,W=D-g|0,t[i+104>>2]=W,e0=I-v|0,t[i+100>>2]=e0,i0=S-h|0,t[i+96>>2]=i0,o0=B-s|0,t[i+92>>2]=o0,s0=u-_|0,t[i+88>>2]=s0,h0=r-A|0,t[i+84>>2]=h0,u0=a-Q|0,t[i+80>>2]=u0,N=N+K|0,t[i+76>>2]=N,q=q+Y|0,t[i+72>>2]=q,w=w+M|0,t[i+68>>2]=w,g=g+D|0,t[G>>2]=g,v=v+I|0,t[i+60>>2]=v,h=h+S|0,t[i+56>>2]=h,s=s+B|0,t[i+52>>2]=s,_=_+u|0,t[i+48>>2]=_,A=A+r|0,t[i+44>>2]=A,r=n,n=a+Q|0,t[r>>2]=n,a=t[e>>2],r=t[e+4>>2],u=t[e+8>>2],B=t[e+12>>2],S=t[e+16>>2],I=t[e+20>>2],D=t[e+24>>2],M=t[e+28>>2],Y=t[e+32>>2],t[i+36>>2]=t[e+36>>2]-N,t[i+32>>2]=Y-q,t[i+28>>2]=M-w,t[i+24>>2]=D-g,t[i+20>>2]=I-v,t[i+16>>2]=S-h,t[i+12>>2]=B-s,t[i+8>>2]=u-_,t[i+4>>2]=r-A,t[i>>2]=a-n,n=t[i+120>>2],a=t[i+124>>2],A=t[i+128>>2],r=t[i+132>>2],_=t[i+136>>2],u=t[i+140>>2],s=t[i+144>>2],B=t[i+148>>2],h=t[i+152>>2],t[i+156>>2]=t[i+156>>2]-z,t[i+152>>2]=h-$,t[i+148>>2]=B-V,t[i+144>>2]=s-W,t[i+140>>2]=u-e0,t[i+136>>2]=_-i0,t[i+132>>2]=r-o0,t[i+128>>2]=A-s0,t[i+124>>2]=a-h0,t[i+120>>2]=n-u0,X=e+48|0}function se(i,n,e,r){var A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0;q=X-288|0,X=q;e:{if(!(e|r))break e;if(h=t[i+36>>2],_=h,A=(r<<3|e>>>29)+_|0,s=t[i+32>>2],u=e<<3,a=s+u|0,t[i+32>>2]=a,t[i+36>>2]=u>>>0>a>>>0?A+1|0:A,h=i+40|0,B=((_&7)<<29|s>>>3)&63,s=B,u=64-s|0,A=0,D=0-(A+(s>>>0>64)|0)|0,s=D,(r|0)==(s|0)&e>>>0>=u>>>0|r>>>0>s>>>0){M=u&3,_=0,s=0;r:{if(!A&(B^63)>>>0>=3|A){for(Y=u&124;A=_+B|0,f[A+h|0]=o[n+_|0],a=_|1,A=B+a|0,f[A+h|0]=o[n+a|0],a=_|2,A=B+a|0,f[A+h|0]=o[n+a|0],a=_|3,A=B+a|0,f[A+h|0]=o[n+a|0],_=_+4|0,s=_>>>0<4?s+1|0:s,A=S,g=g+4|0,A=g>>>0<4?A+1|0:A,S=A,!!((g|0)!=(Y|0)|(I|0)!=(A|0)););if(!(M|I))break r}for(;A=_+B|0,f[A+h|0]=o[n+_|0],A=s,_=_+1|0,s=_?A:A+1|0,A=w,v=v+1|0,A=v?A:A+1|0,w=A,!!((v|0)!=(M|0)|(I|0)!=(A|0)););}if(w=q+256|0,cn(i,h,q,w),n=n+u|0,r=r-((e>>>0<u>>>0)+D|0)|0,e=e-u|0,!r&e>>>0>63|r)for(;cn(i,n,q,w),n=n- -64|0,s=r-1|0,e=e+-64|0,r=e>>>0<4294967232?s+1|0:s,!!(!r&e>>>0>63|r););r:{if(!(e|r))break r;if(a=e&3,u=0,v=0,w=0,_=0,s=0,!r&e>>>0>=4|r){for(g=e&60,S=0,e=0,r=0;f[_+h|0]=o[n+_|0],i=_|1,f[i+h|0]=o[i+n|0],i=_|2,f[i+h|0]=o[i+n|0],i=_|3,f[i+h|0]=o[i+n|0],A=s,_=_+4|0,s=_>>>0<4?A+1|0:A,A=r,e=e+4|0,A=e>>>0<4?A+1|0:A,r=A,!!((e|0)!=(g|0)|(S|0)!=(A|0)););if(!(u|a))break r}for(;f[_+h|0]=o[n+_|0],_=_+1|0,s=_?s:s+1|0,A=w,v=v+1|0,A=v?A:A+1|0,w=A,!!((a|0)!=(v|0)|(u|0)!=(A|0)););}N0(q,288);break e}if(I=e&3,a=0,_=0,s=0,!r&e>>>0>=4|r){for(u=e&-4;i=_+B|0,f[i+h|0]=o[n+_|0],e=_|1,i=B+e|0,f[i+h|0]=o[n+e|0],e=_|2,i=B+e|0,f[i+h|0]=o[n+e|0],e=_|3,i=B+e|0,f[i+h|0]=o[n+e|0],_=_+4|0,s=_>>>0<4?s+1|0:s,A=S,g=g+4|0,A=g>>>0<4?A+1|0:A,S=A,!!((u|0)!=(g|0)|(r|0)!=(A|0)););if(!(a|I))break e}for(;i=_+B|0,f[i+h|0]=o[n+_|0],_=_+1|0,s=_?s:s+1|0,A=w,v=v+1|0,A=v?A:A+1|0,w=A,!!((v|0)!=(I|0)|(a|0)!=(A|0)););}return X=q+288|0,0}function $i(i,n,e){var r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0;r=X-160|0,X=r,A=o[41218],t[i+4>>2]=0,t[i+8>>2]=0,t[i>>2]=1,t[i+12>>2]=0,t[i+16>>2]=0,t[i+20>>2]=0,t[i+24>>2]=0,t[i+28>>2]=0,t[i+32>>2]=0,t[i+44>>2]=0,t[i+48>>2]=0,t[i+36>>2]=0,t[i+40>>2]=1,t[i+52>>2]=0,t[i+56>>2]=0,t[i+60>>2]=0,t[i+64>>2]=0,t[i+68>>2]=0,t[i+72>>2]=0,t[i+76>>2]=0,t[i+80>>2]=1,k2(i+84|0,0,76),A=A>>>2^(e&128)>>>7,e=e-((0-A&e)<<1)|0,He(i,n,o[41218]>>>2^((e^1)&255)-1>>>31),He(i,n+160|0,o[41218]>>>2^((e^2)&255)-1>>>31),He(i,n+320|0,o[41218]>>>2^((e^3)&255)-1>>>31),He(i,n+480|0,o[41218]>>>2^((e^4)&255)-1>>>31),He(i,n+640|0,o[41218]>>>2^((e^5)&255)-1>>>31),He(i,n+800|0,o[41218]>>>2^((e^6)&255)-1>>>31),He(i,n+960|0,o[41218]>>>2^((e^7)&255)-1>>>31),He(i,n+1120|0,o[41218]>>>2^((e^8)&255)-1>>>31),n=t[i+76>>2],t[r+32>>2]=t[i+72>>2],t[r+36>>2]=n,n=i- -64|0,e=t[n+4>>2],t[r+24>>2]=t[n>>2],t[r+28>>2]=e,n=t[i+60>>2],t[r+16>>2]=t[i+56>>2],t[r+20>>2]=n,n=t[i+52>>2],t[r+8>>2]=t[i+48>>2],t[r+12>>2]=n,n=t[i+44>>2],t[r>>2]=t[i+40>>2],t[r+4>>2]=n,n=t[i+36>>2],t[r+72>>2]=t[i+32>>2],t[r+76>>2]=n,n=t[i+28>>2],t[r+64>>2]=t[i+24>>2],t[r+68>>2]=n,n=t[i+20>>2],t[r+56>>2]=t[i+16>>2],t[r+60>>2]=n,n=t[i+12>>2],t[r+48>>2]=t[i+8>>2],t[r+52>>2]=n,n=t[i+4>>2],t[r+40>>2]=t[i>>2],t[r+44>>2]=n,n=t[i+92>>2],t[r+88>>2]=t[i+88>>2],t[r+92>>2]=n,n=t[i+84>>2],t[r+80>>2]=t[i+80>>2],t[r+84>>2]=n,n=t[i+100>>2],t[r+96>>2]=t[i+96>>2],t[r+100>>2]=n,n=t[i+108>>2],t[r+104>>2]=t[i+104>>2],t[r+108>>2]=n,n=t[i+116>>2],t[r+112>>2]=t[i+112>>2],t[r+116>>2]=n,n=t[i+120>>2],e=t[i+124>>2],_=t[i+128>>2],s=t[i+132>>2],h=t[i+136>>2],a=t[i+140>>2],u=t[i+144>>2],B=t[i+148>>2],v=t[i+152>>2],t[r+156>>2]=0-t[i+156>>2],t[r+152>>2]=0-v,t[r+148>>2]=0-B,t[r+144>>2]=0-u,t[r+140>>2]=0-a,t[r+136>>2]=0-h,t[r+132>>2]=0-s,t[r+128>>2]=0-_,t[r+124>>2]=0-e,t[r+120>>2]=0-n,He(i,r,A),X=r+160|0}function T6(i,n,e,r,A,_){var s=0;t[_>>2]=8;e:{r:{s=i,i=!n&i>>>0<=32768,s=i?32768:s;t:{n:{if(i=i?0:n,!i&e>>>5>>>0<=s>>>0|i){if(e>>>0>=4096)break n;n=1;break t}if(t[A>>2]=1,n=(s>>>0)/(t[_>>2]<<2>>>0)|0,i=1,n>>>0<4||(i=2,n>>>0<8))break e;if(n>>>0<16){t[r>>2]=3;return}if(n>>>0<32){t[r>>2]=4;return}if(n>>>0<64){t[r>>2]=5;return}if(n>>>0<128){t[r>>2]=6;return}if(n>>>0<256){t[r>>2]=7;return}if(n>>>0<512){t[r>>2]=8;return}if(n>>>0<1024){t[r>>2]=9;return}if(n>>>0<2048){t[r>>2]=10;return}if(n>>>0<4096){t[r>>2]=11;return}if(n>>>0<8192){t[r>>2]=12;return}if(n>>>0<16384){t[r>>2]=13;return}if(n>>>0<32768){t[r>>2]=14;return}if(n>>>0<65536){t[r>>2]=15;return}if(n>>>0<131072){t[r>>2]=16;return}if(n>>>0<262144){t[r>>2]=17;return}if(n>>>0<524288){t[r>>2]=18;return}if(n>>>0<1048576){t[r>>2]=19;return}if(n>>>0<2097152){t[r>>2]=20;return}if(n>>>0<4194304){t[r>>2]=21;return}if(n>>>0<8388608){t[r>>2]=22;return}if(n>>>0<16777216){t[r>>2]=23;return}if(n>>>0>=33554432)break r;t[r>>2]=24;return}if(n=2,e>>>0<8192||(n=3,e>>>0<16384)||(n=4,e>>>0<32768)||(n=5,e>>>0<65536)||(n=6,e>>>0<131072)||(n=7,e>>>0<262144)||(n=8,e>>>0<524288)||(n=9,e>>>0<1048576)||(n=10,e>>>0<2097152)||(n=11,e>>>0<4194304)||(n=12,e>>>0<8388608)||(n=13,e>>>0<16777216)||(n=14,e>>>0<33554432)||(n=15,e>>>0<67108864)||(n=16,e>>>0<134217728)||(n=17,e>>>0<268435456)||(n=18,e>>>0<536870912)||(n=19,e>>>0<1073741824))break t;n=(e|0)>=0?20:21}e=n,t[r>>2]=e,n=i,i=n>>>2|0,n=(n&3)<<30|s>>>2,r=e&31,(e&63)>>>0>=32?(e=0,i=i>>>r|0):(e=i>>>r|0,i=((1<<r)-1&i)<<32-r|n>>>r),t[A>>2]=((!e&i>>>0>=1073741823|e?1073741823:i)>>>0)/R1[_>>2];return}i=n>>>0<67108864?25:26}t[r>>2]=i}function z5(i,n,e,r,A,_,s,h){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0,_=_|0,s=s|0,h=h|0;var a=0,u=0;if(a=X-112|0,X=a,e|r){u=o[h+28|0]|o[h+29|0]<<8|(o[h+30|0]<<16|o[h+31|0]<<24),t[a+24>>2]=o[h+24|0]|o[h+25|0]<<8|(o[h+26|0]<<16|o[h+27|0]<<24),t[a+28>>2]=u,u=o[h+20|0]|o[h+21|0]<<8|(o[h+22|0]<<16|o[h+23|0]<<24),t[a+16>>2]=o[h+16|0]|o[h+17|0]<<8|(o[h+18|0]<<16|o[h+19|0]<<24),t[a+20>>2]=u,u=o[h+12|0]|o[h+13|0]<<8|(o[h+14|0]<<16|o[h+15|0]<<24),t[a+8>>2]=o[h+8|0]|o[h+9|0]<<8|(o[h+10|0]<<16|o[h+11|0]<<24),t[a+12>>2]=u,u=o[h+4|0]|o[h+5|0]<<8|(o[h+6|0]<<16|o[h+7|0]<<24),t[a>>2]=o[h|0]|o[h+1|0]<<8|(o[h+2|0]<<16|o[h+3|0]<<24),t[a+4>>2]=u,h=o[A+4|0]|o[A+5|0]<<8|(o[A+6|0]<<16|o[A+7|0]<<24),t[a+96>>2]=o[A|0]|o[A+1|0]<<8|(o[A+2|0]<<16|o[A+3|0]<<24),t[a+100>>2]=h,f[a+104|0]=_,f[a+111|0]=s>>>24,f[a+110|0]=s>>>16,f[a+109|0]=s>>>8,f[a+108|0]=s,f[a+107|0]=(s&16777215)<<8|_>>>24,f[a+106|0]=(s&65535)<<16|_>>>16,f[a+105|0]=(s&255)<<24|_>>>8;e:{if(!r&e>>>0>=64|r){for(;;){for(h=0,St(a+32|0,a+96|0,a,0);_=a+32|0,f[i+h|0]=o[_+h|0]^o[n+h|0],A=h|1,f[A+i|0]=o[A+_|0]^o[n+A|0],h=h+2|0,(h|0)!=64;);if(A=o[a+104|0]+1|0,f[a+104|0]=A,A=o[a+105|0]+(A>>>8|0)|0,f[a+105|0]=A,A=o[a+106|0]+(A>>>8|0)|0,f[a+106|0]=A,A=o[a+107|0]+(A>>>8|0)|0,f[a+107|0]=A,A=o[a+108|0]+(A>>>8|0)|0,f[a+108|0]=A,A=o[a+109|0]+(A>>>8|0)|0,f[a+109|0]=A,A=o[a+110|0]+(A>>>8|0)|0,f[a+110|0]=A,f[a+111|0]=o[a+111|0]+(A>>>8|0),n=n- -64|0,i=i- -64|0,r=r-1|0,e=e+-64|0,r=e>>>0<4294967232?r+1|0:r,!(!r&e>>>0>63|r))break}if(!(e|r))break e}if(h=0,St(a+32|0,a+96|0,a,0),(e|0)!=1|r){for(r=e&1,_=e&62,A=0;s=a+32|0,f[i+h|0]=o[s+h|0]^o[n+h|0],e=h|1,f[e+i|0]=o[e+s|0]^o[n+e|0],h=h+2|0,A=A+2|0,(_|0)!=(A|0););if(!r)break e}f[i+h|0]=o[(a+32|0)+h|0]^o[n+h|0]}N0(a+32|0,64),N0(a,32)}return X=a+112|0,0}function Vi(i,n){i=i|0,n=n|0;var e=0,r=0,A=0,_=0,s=0,h=0,a=0,u=0;return r=X-192|0,X=r,q1(r,32),Gr(n,r,32,0),f[n|0]=o[n|0]&248,f[n+31|0]=o[n+31|0]&63|64,A=r+32|0,Qr(A,n),be(i,A),_=r,A=t[r+28>>2],r=t[r+24>>2],f[n+24|0]=r,f[n+25|0]=r>>>8,f[n+26|0]=r>>>16,f[n+27|0]=r>>>24,f[n+28|0]=A,f[n+29|0]=A>>>8,f[n+30|0]=A>>>16,f[n+31|0]=A>>>24,A=t[_+20>>2],r=t[_+16>>2],f[n+16|0]=r,f[n+17|0]=r>>>8,f[n+18|0]=r>>>16,f[n+19|0]=r>>>24,f[n+20|0]=A,f[n+21|0]=A>>>8,f[n+22|0]=A>>>16,f[n+23|0]=A>>>24,A=t[_+12>>2],r=t[_+8>>2],f[n+8|0]=r,f[n+9|0]=r>>>8,f[n+10|0]=r>>>16,f[n+11|0]=r>>>24,f[n+12|0]=A,f[n+13|0]=A>>>8,f[n+14|0]=A>>>16,f[n+15|0]=A>>>24,A=t[_+4>>2],r=t[_>>2],f[n|0]=r,f[n+1|0]=r>>>8,f[n+2|0]=r>>>16,f[n+3|0]=r>>>24,f[n+4|0]=A,f[n+5|0]=A>>>8,f[n+6|0]=A>>>16,f[n+7|0]=A>>>24,e=i,s=o[e|0]|o[e+1|0]<<8|(o[e+2|0]<<16|o[e+3|0]<<24),h=o[e+4|0]|o[e+5|0]<<8|(o[e+6|0]<<16|o[e+7|0]<<24),a=o[e+8|0]|o[e+9|0]<<8|(o[e+10|0]<<16|o[e+11|0]<<24),A=o[e+12|0]|o[e+13|0]<<8|(o[e+14|0]<<16|o[e+15|0]<<24),r=o[e+16|0]|o[e+17|0]<<8|(o[e+18|0]<<16|o[e+19|0]<<24),i=o[e+20|0]|o[e+21|0]<<8|(o[e+22|0]<<16|o[e+23|0]<<24),u=o[e+28|0]|o[e+29|0]<<8|(o[e+30|0]<<16|o[e+31|0]<<24),e=o[e+24|0]|o[e+25|0]<<8|(o[e+26|0]<<16|o[e+27|0]<<24),f[n+56|0]=e,f[n+57|0]=e>>>8,f[n+58|0]=e>>>16,f[n+59|0]=e>>>24,f[n+60|0]=u,f[n+61|0]=u>>>8,f[n+62|0]=u>>>16,f[n+63|0]=u>>>24,f[n+48|0]=r,f[n+49|0]=r>>>8,f[n+50|0]=r>>>16,f[n+51|0]=r>>>24,f[n+52|0]=i,f[n+53|0]=i>>>8,f[n+54|0]=i>>>16,f[n+55|0]=i>>>24,f[n+40|0]=a,f[n+41|0]=a>>>8,f[n+42|0]=a>>>16,f[n+43|0]=a>>>24,f[n+44|0]=A,f[n+45|0]=A>>>8,f[n+46|0]=A>>>16,f[n+47|0]=A>>>24,f[n+32|0]=s,f[n+33|0]=s>>>8,f[n+34|0]=s>>>16,f[n+35|0]=s>>>24,f[n+36|0]=h,f[n+37|0]=h>>>8,f[n+38|0]=h>>>16,f[n+39|0]=h>>>24,N0(_,32),X=_+192|0,0}function Wi(i,n){i=i|0,n=n|0;var e=0,r=0;r=X+-64|0,X=r,e=o[n+60|0]|o[n+61|0]<<8|(o[n+62|0]<<16|o[n+63|0]<<24),t[r+56>>2]=o[n+56|0]|o[n+57|0]<<8|(o[n+58|0]<<16|o[n+59|0]<<24),t[r+60>>2]=e,e=o[n+52|0]|o[n+53|0]<<8|(o[n+54|0]<<16|o[n+55|0]<<24),t[r+48>>2]=o[n+48|0]|o[n+49|0]<<8|(o[n+50|0]<<16|o[n+51|0]<<24),t[r+52>>2]=e,e=o[n+44|0]|o[n+45|0]<<8|(o[n+46|0]<<16|o[n+47|0]<<24),t[r+40>>2]=o[n+40|0]|o[n+41|0]<<8|(o[n+42|0]<<16|o[n+43|0]<<24),t[r+44>>2]=e,e=o[n+36|0]|o[n+37|0]<<8|(o[n+38|0]<<16|o[n+39|0]<<24),t[r+32>>2]=o[n+32|0]|o[n+33|0]<<8|(o[n+34|0]<<16|o[n+35|0]<<24),t[r+36>>2]=e,e=o[n+28|0]|o[n+29|0]<<8|(o[n+30|0]<<16|o[n+31|0]<<24),t[r+24>>2]=o[n+24|0]|o[n+25|0]<<8|(o[n+26|0]<<16|o[n+27|0]<<24),t[r+28>>2]=e,e=o[n+20|0]|o[n+21|0]<<8|(o[n+22|0]<<16|o[n+23|0]<<24),t[r+16>>2]=o[n+16|0]|o[n+17|0]<<8|(o[n+18|0]<<16|o[n+19|0]<<24),t[r+20>>2]=e,e=o[n+12|0]|o[n+13|0]<<8|(o[n+14|0]<<16|o[n+15|0]<<24),t[r+8>>2]=o[n+8|0]|o[n+9|0]<<8|(o[n+10|0]<<16|o[n+11|0]<<24),t[r+12>>2]=e,e=o[n+4|0]|o[n+5|0]<<8|(o[n+6|0]<<16|o[n+7|0]<<24),t[r>>2]=o[n|0]|o[n+1|0]<<8|(o[n+2|0]<<16|o[n+3|0]<<24),t[r+4>>2]=e,Me(r),n=t[r+28>>2],e=t[r+24>>2],f[i+24|0]=e,f[i+25|0]=e>>>8,f[i+26|0]=e>>>16,f[i+27|0]=e>>>24,f[i+28|0]=n,f[i+29|0]=n>>>8,f[i+30|0]=n>>>16,f[i+31|0]=n>>>24,n=t[r+20>>2],e=t[r+16>>2],f[i+16|0]=e,f[i+17|0]=e>>>8,f[i+18|0]=e>>>16,f[i+19|0]=e>>>24,f[i+20|0]=n,f[i+21|0]=n>>>8,f[i+22|0]=n>>>16,f[i+23|0]=n>>>24,n=t[r+12>>2],e=t[r+8>>2],f[i+8|0]=e,f[i+9|0]=e>>>8,f[i+10|0]=e>>>16,f[i+11|0]=e>>>24,f[i+12|0]=n,f[i+13|0]=n>>>8,f[i+14|0]=n>>>16,f[i+15|0]=n>>>24,n=t[r+4>>2],e=t[r>>2],f[i|0]=e,f[i+1|0]=e>>>8,f[i+2|0]=e>>>16,f[i+3|0]=e>>>24,f[i+4|0]=n,f[i+5|0]=n>>>8,f[i+6|0]=n>>>16,f[i+7|0]=n>>>24,N0(r,64),X=r- -64|0}function We(i,n,e){i=i|0,n=n|0,e=e|0;var r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0;r=X-96|0,X=r,e>>>0>=65&&(Sn(i),se(i,n,e,0),Re(i,r),e=32,n=r),Sn(i),t[r+88>>2]=909522486,t[r+92>>2]=909522486,t[r+80>>2]=909522486,t[r+84>>2]=909522486,t[r+72>>2]=909522486,t[r+76>>2]=909522486,t[r+64>>2]=909522486,t[r+68>>2]=909522486,t[r+56>>2]=909522486,t[r+60>>2]=909522486,t[r+48>>2]=909522486,t[r+52>>2]=909522486,t[r+40>>2]=909522486,t[r+44>>2]=909522486,t[r+32>>2]=909522486,t[r+36>>2]=909522486;e:{if(!e)break e;if(B=e&3,e>>>0>=4){for(s=e&124;h=r+32|0,_=h+A|0,f[_|0]=o[_|0]^o[n+A|0],_=A|1,v=_+h|0,f[v|0]=o[v|0]^o[n+_|0],_=A|2,v=_+h|0,f[v|0]=o[v|0]^o[n+_|0],_=h,h=A|3,_=_+h|0,f[_|0]=o[_|0]^o[n+h|0],A=A+4|0,a=a+4|0,(s|0)!=(a|0););if(!B)break e}for(;a=(r+32|0)+A|0,f[a|0]=o[a|0]^o[n+A|0],A=A+1|0,u=u+1|0,(B|0)!=(u|0););}se(i,r+32|0,64,0),B=i+104|0,Sn(B),t[r+88>>2]=1549556828,t[r+92>>2]=1549556828,t[r+80>>2]=1549556828,t[r+84>>2]=1549556828,t[r+72>>2]=1549556828,t[r+76>>2]=1549556828,t[r+64>>2]=1549556828,t[r+68>>2]=1549556828,t[r+56>>2]=1549556828,t[r+60>>2]=1549556828,t[r+48>>2]=1549556828,t[r+52>>2]=1549556828,t[r+40>>2]=1549556828,t[r+44>>2]=1549556828,t[r+32>>2]=1549556828,t[r+36>>2]=1549556828;e:{if(!e)break e;if(h=e&3,u=0,A=0,e>>>0>=4){for(e=e&124,a=0;i=r+32|0,s=i+A|0,f[s|0]=o[s|0]^o[n+A|0],s=A|1,_=s+i|0,f[_|0]=o[_|0]^o[n+s|0],s=A|2,_=s+i|0,f[_|0]=o[_|0]^o[n+s|0],_=i,i=A|3,s=_+i|0,f[s|0]=o[s|0]^o[i+n|0],A=A+4|0,a=a+4|0,(e|0)!=(a|0););if(!h)break e}for(;i=(r+32|0)+A|0,f[i|0]=o[i|0]^o[n+A|0],A=A+1|0,u=u+1|0,(h|0)!=(u|0););}return i=r+32|0,se(B,i,64,0),N0(i,64),N0(r,32),X=r+96|0,0}function wn(i,n,e,r,A,_,s){var h=0,a=0,u=0,B=0,v=0,g=0,w=0;if(n-65>>>0<4294967232|s>>>0>64)i=-1;else{h=X,g=h,h=h-512&-64,X=h;e:{r:{if(!(!(r|A)|e)|(!i|(n-65&255)>>>0<=191)|(!(!s||_)|s>>>0>=65))break r;t:{if(s){if(!_)break r;k2(h- -64|0,0,293),t[h+56>>2]=327033209,t[h+60>>2]=1541459225,t[h+48>>2]=-79577749,t[h+52>>2]=528734635,t[h+40>>2]=725511199,t[h+44>>2]=-1694144372,t[h+32>>2]=-1377402159,t[h+36>>2]=1359893119,t[h+24>>2]=1595750129,t[h+28>>2]=-1521486534,t[h+16>>2]=-23791573,t[h+20>>2]=1013904242,t[h+8>>2]=-2067093701,t[h+12>>2]=-1150833019,t[h>>2]=(s<<8|n)^-222443256,t[h+4>>2]=s>>>24^1779033703,u=128,a=128-s|0,a&&k2((h+384|0)+s|0,0,a),s&&_2(h+384|0,_,s),_=h+384|0,_2(h+96|0,_,128),t[h+352>>2]=128,N0(_,128);break t}k2(h- -64|0,0,293),t[h+56>>2]=327033209,t[h+60>>2]=1541459225,t[h+48>>2]=-79577749,t[h+52>>2]=528734635,t[h+40>>2]=725511199,t[h+44>>2]=-1694144372,t[h+32>>2]=-1377402159,t[h+36>>2]=1359893119,t[h+24>>2]=1595750129,t[h+28>>2]=-1521486534,t[h+16>>2]=-23791573,t[h+20>>2]=1013904242,t[h+8>>2]=-2067093701,t[h+12>>2]=-1150833019,t[h>>2]=n^-222443256,t[h+4>>2]=1779033703}if(r|A){if(v=h+96|0,_=256-u|0,!A&r>>>0>_>>>0|A)for(w=h+224|0;_&&_2(u+v|0,e,_),t[h+352>>2]=t[h+352>>2]+_,s=t[h+68>>2],u=s,a=t[h+64>>2],B=a+128|0,s=B>>>0<128?s+1|0:s,t[h+64>>2]=B,t[h+68>>2]=s,s=t[h+76>>2],a=(u|0)==-1&a>>>0>4294967167,u=a,a=a+t[h+72>>2]|0,s=u>>>0>a>>>0?s+1|0:s,t[h+72>>2]=a,t[h+76>>2]=s,jt(h,v),_2(v,w,128),B=t[h+352>>2],u=B-128|0,t[h+352>>2]=u,e=e+_|0,s=_,a=r-s|0,A=A-(r>>>0<s>>>0)|0,_=384-B|0,r=a,!!(!A&_>>>0<a>>>0|A););r&&_2(u+v|0,e,r),t[h+352>>2]=r+t[h+352>>2]}v6(h,i,n),X=g;break e}Q2(),C2()}i=0}return i}function Z5(i,n,e,r,A,_){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0,_=_|0;var s=0,h=0,a=0;if(s=X-112|0,X=s,h=e,r|e){e=o[_+28|0]|o[_+29|0]<<8|(o[_+30|0]<<16|o[_+31|0]<<24),t[s+24>>2]=o[_+24|0]|o[_+25|0]<<8|(o[_+26|0]<<16|o[_+27|0]<<24),t[s+28>>2]=e,e=o[_+20|0]|o[_+21|0]<<8|(o[_+22|0]<<16|o[_+23|0]<<24),t[s+16>>2]=o[_+16|0]|o[_+17|0]<<8|(o[_+18|0]<<16|o[_+19|0]<<24),t[s+20>>2]=e,e=o[_+12|0]|o[_+13|0]<<8|(o[_+14|0]<<16|o[_+15|0]<<24),t[s+8>>2]=o[_+8|0]|o[_+9|0]<<8|(o[_+10|0]<<16|o[_+11|0]<<24),t[s+12>>2]=e,e=o[_+4|0]|o[_+5|0]<<8|(o[_+6|0]<<16|o[_+7|0]<<24),t[s>>2]=o[_|0]|o[_+1|0]<<8|(o[_+2|0]<<16|o[_+3|0]<<24),t[s+4>>2]=e,e=o[A|0]|o[A+1|0]<<8|(o[A+2|0]<<16|o[A+3|0]<<24),A=o[A+4|0]|o[A+5|0]<<8|(o[A+6|0]<<16|o[A+7|0]<<24),t[s+104>>2]=0,t[s+108>>2]=0,t[s+96>>2]=e,t[s+100>>2]=A;e:{if(!r&h>>>0>=64|r){for(;;){for(e=0,Pt(s+32|0,s+96|0,s,0);_=s+32|0,f[i+e|0]=o[_+e|0]^o[n+e|0],A=e|1,f[A+i|0]=o[A+_|0]^o[n+A|0],e=e+2|0,(e|0)!=64;);if(e=o[s+104|0]+1|0,f[s+104|0]=e,e=o[s+105|0]+(e>>>8|0)|0,f[s+105|0]=e,e=o[s+106|0]+(e>>>8|0)|0,f[s+106|0]=e,e=o[s+107|0]+(e>>>8|0)|0,f[s+107|0]=e,e=o[s+108|0]+(e>>>8|0)|0,f[s+108|0]=e,e=o[s+109|0]+(e>>>8|0)|0,f[s+109|0]=e,e=o[s+110|0]+(e>>>8|0)|0,f[s+110|0]=e,f[s+111|0]=o[s+111|0]+(e>>>8|0),n=n- -64|0,i=i- -64|0,r=r-1|0,h=h+-64|0,r=h>>>0<4294967232?r+1|0:r,!(!r&h>>>0>63|r))break}if(!(r|h))break e}if(e=0,Pt(s+32|0,s+96|0,s,0),(h|0)!=1|r){for(_=h&1,h=h&62,r=0;a=s+32|0,f[i+e|0]=o[a+e|0]^o[n+e|0],A=e|1,f[A+i|0]=o[A+a|0]^o[n+A|0],e=e+2|0,r=r+2|0,(h|0)!=(r|0););if(!_)break e}f[i+e|0]=o[(s+32|0)+e|0]^o[n+e|0]}N0(s+32|0,64),N0(s,32)}return X=s+112|0,0}function $5(i,n,e,r,A,_){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0,_=_|0;var s=0,h=0,a=0;if(s=X-112|0,X=s,h=e,r|e){e=o[_+28|0]|o[_+29|0]<<8|(o[_+30|0]<<16|o[_+31|0]<<24),t[s+24>>2]=o[_+24|0]|o[_+25|0]<<8|(o[_+26|0]<<16|o[_+27|0]<<24),t[s+28>>2]=e,e=o[_+20|0]|o[_+21|0]<<8|(o[_+22|0]<<16|o[_+23|0]<<24),t[s+16>>2]=o[_+16|0]|o[_+17|0]<<8|(o[_+18|0]<<16|o[_+19|0]<<24),t[s+20>>2]=e,e=o[_+12|0]|o[_+13|0]<<8|(o[_+14|0]<<16|o[_+15|0]<<24),t[s+8>>2]=o[_+8|0]|o[_+9|0]<<8|(o[_+10|0]<<16|o[_+11|0]<<24),t[s+12>>2]=e,e=o[_+4|0]|o[_+5|0]<<8|(o[_+6|0]<<16|o[_+7|0]<<24),t[s>>2]=o[_|0]|o[_+1|0]<<8|(o[_+2|0]<<16|o[_+3|0]<<24),t[s+4>>2]=e,e=o[A|0]|o[A+1|0]<<8|(o[A+2|0]<<16|o[A+3|0]<<24),A=o[A+4|0]|o[A+5|0]<<8|(o[A+6|0]<<16|o[A+7|0]<<24),t[s+104>>2]=0,t[s+108>>2]=0,t[s+96>>2]=e,t[s+100>>2]=A;e:{if(!r&h>>>0>=64|r){for(;;){for(e=0,It(s+32|0,s+96|0,s,0);_=s+32|0,f[i+e|0]=o[_+e|0]^o[n+e|0],A=e|1,f[A+i|0]=o[A+_|0]^o[n+A|0],e=e+2|0,(e|0)!=64;);if(e=o[s+104|0]+1|0,f[s+104|0]=e,e=o[s+105|0]+(e>>>8|0)|0,f[s+105|0]=e,e=o[s+106|0]+(e>>>8|0)|0,f[s+106|0]=e,e=o[s+107|0]+(e>>>8|0)|0,f[s+107|0]=e,e=o[s+108|0]+(e>>>8|0)|0,f[s+108|0]=e,e=o[s+109|0]+(e>>>8|0)|0,f[s+109|0]=e,e=o[s+110|0]+(e>>>8|0)|0,f[s+110|0]=e,f[s+111|0]=o[s+111|0]+(e>>>8|0),n=n- -64|0,i=i- -64|0,r=r-1|0,h=h+-64|0,r=h>>>0<4294967232?r+1|0:r,!(!r&h>>>0>63|r))break}if(!(r|h))break e}if(e=0,It(s+32|0,s+96|0,s,0),(h|0)!=1|r){for(_=h&1,h=h&62,r=0;a=s+32|0,f[i+e|0]=o[a+e|0]^o[n+e|0],A=e|1,f[A+i|0]=o[A+a|0]^o[n+A|0],e=e+2|0,r=r+2|0,(h|0)!=(r|0););if(!_)break e}f[i+e|0]=o[(s+32|0)+e|0]^o[n+e|0]}N0(s+32|0,64),N0(s,32)}return X=s+112|0,0}function Ji(i,n){i=i|0,n=n|0;var e=0,r=0;e=X-128|0,X=e,t[e+64>>2]=0,t[e+68>>2]=0,t[e+72>>2]=0,t[e+76>>2]=0,t[e+80>>2]=0,t[e+84>>2]=0,t[e+88>>2]=0,t[e+92>>2]=0,f[e+64|0]=1,t[e+32>>2]=0,t[e+36>>2]=0,t[e+40>>2]=0,t[e+44>>2]=0,t[e+48>>2]=0,t[e+52>>2]=0,t[e+56>>2]=0,t[e+60>>2]=0,r=t[9821],t[e+96>>2]=t[9820],t[e+100>>2]=r,r=t[9823],t[e+104>>2]=t[9822],t[e+108>>2]=r,r=t[9825],t[e+112>>2]=t[9824],t[e+116>>2]=r,r=t[9827],t[e+120>>2]=t[9826],t[e+124>>2]=r,r=o[n+28|0]|o[n+29|0]<<8|(o[n+30|0]<<16|o[n+31|0]<<24),t[e+24>>2]=o[n+24|0]|o[n+25|0]<<8|(o[n+26|0]<<16|o[n+27|0]<<24),t[e+28>>2]=r,r=o[n+20|0]|o[n+21|0]<<8|(o[n+22|0]<<16|o[n+23|0]<<24),t[e+16>>2]=o[n+16|0]|o[n+17|0]<<8|(o[n+18|0]<<16|o[n+19|0]<<24),t[e+20>>2]=r,r=o[n+12|0]|o[n+13|0]<<8|(o[n+14|0]<<16|o[n+15|0]<<24),t[e+8>>2]=o[n+8|0]|o[n+9|0]<<8|(o[n+10|0]<<16|o[n+11|0]<<24),t[e+12>>2]=r,r=o[n+4|0]|o[n+5|0]<<8|(o[n+6|0]<<16|o[n+7|0]<<24),t[e>>2]=o[n|0]|o[n+1|0]<<8|(o[n+2|0]<<16|o[n+3|0]<<24),t[e+4>>2]=r,n=e- -64|0,H6(n,e),Me(n),r=t[e+92>>2],n=t[e+88>>2],f[i+24|0]=n,f[i+25|0]=n>>>8,f[i+26|0]=n>>>16,f[i+27|0]=n>>>24,f[i+28|0]=r,f[i+29|0]=r>>>8,f[i+30|0]=r>>>16,f[i+31|0]=r>>>24,r=t[e+84>>2],n=t[e+80>>2],f[i+16|0]=n,f[i+17|0]=n>>>8,f[i+18|0]=n>>>16,f[i+19|0]=n>>>24,f[i+20|0]=r,f[i+21|0]=r>>>8,f[i+22|0]=r>>>16,f[i+23|0]=r>>>24,r=t[e+76>>2],n=t[e+72>>2],f[i+8|0]=n,f[i+9|0]=n>>>8,f[i+10|0]=n>>>16,f[i+11|0]=n>>>24,f[i+12|0]=r,f[i+13|0]=r>>>8,f[i+14|0]=r>>>16,f[i+15|0]=r>>>24,r=t[e+68>>2],n=t[e+64>>2],f[i|0]=n,f[i+1|0]=n>>>8,f[i+2|0]=n>>>16,f[i+3|0]=n>>>24,f[i+4|0]=r,f[i+5|0]=r>>>8,f[i+6|0]=r>>>16,f[i+7|0]=r>>>24,X=e+128|0}function V5(i,n,e,r,A){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0;var _=0,s=0,h=0,a=0;if(_=X-112|0,X=_,h=n,s=e,n|s){n=o[A+28|0]|o[A+29|0]<<8|(o[A+30|0]<<16|o[A+31|0]<<24),t[_+24>>2]=o[A+24|0]|o[A+25|0]<<8|(o[A+26|0]<<16|o[A+27|0]<<24),t[_+28>>2]=n,n=o[A+20|0]|o[A+21|0]<<8|(o[A+22|0]<<16|o[A+23|0]<<24),t[_+16>>2]=o[A+16|0]|o[A+17|0]<<8|(o[A+18|0]<<16|o[A+19|0]<<24),t[_+20>>2]=n,n=o[A+12|0]|o[A+13|0]<<8|(o[A+14|0]<<16|o[A+15|0]<<24),t[_+8>>2]=o[A+8|0]|o[A+9|0]<<8|(o[A+10|0]<<16|o[A+11|0]<<24),t[_+12>>2]=n,n=o[A+4|0]|o[A+5|0]<<8|(o[A+6|0]<<16|o[A+7|0]<<24),t[_>>2]=o[A|0]|o[A+1|0]<<8|(o[A+2|0]<<16|o[A+3|0]<<24),t[_+4>>2]=n,n=o[r|0]|o[r+1|0]<<8|(o[r+2|0]<<16|o[r+3|0]<<24),e=o[r+4|0]|o[r+5|0]<<8|(o[r+6|0]<<16|o[r+7|0]<<24),t[_+104>>2]=0,t[_+108>>2]=0,t[_+96>>2]=n,t[_+100>>2]=e;e:{if(!s&h>>>0>=64|s){for(;It(i,_+96|0,_,0),n=o[_+104|0]+1|0,f[_+104|0]=n,n=o[_+105|0]+(n>>>8|0)|0,f[_+105|0]=n,n=o[_+106|0]+(n>>>8|0)|0,f[_+106|0]=n,n=o[_+107|0]+(n>>>8|0)|0,f[_+107|0]=n,n=o[_+108|0]+(n>>>8|0)|0,f[_+108|0]=n,n=o[_+109|0]+(n>>>8|0)|0,f[_+109|0]=n,n=o[_+110|0]+(n>>>8|0)|0,f[_+110|0]=n,f[_+111|0]=o[_+111|0]+(n>>>8|0),i=i- -64|0,s=s-1|0,h=h+-64|0,s=h>>>0<4294967232?s+1|0:s,!!(!s&h>>>0>63|s););if(!(s|h))break e}if(e=0,It(_+32|0,_+96|0,_,0),r=h&3,n=0,!s&h>>>0>=4|s){for(h=h&60,A=0;s=_+32|0,f[i+n|0]=o[s+n|0],a=n|1,f[a+i|0]=o[s+a|0],a=n|2,f[a+i|0]=o[s+a|0],a=n|3,f[a+i|0]=o[s+a|0],n=n+4|0,A=A+4|0,(h|0)!=(A|0););if(!r)break e}for(;f[i+n|0]=o[(_+32|0)+n|0],n=n+1|0,e=e+1|0,(r|0)!=(e|0););}N0(_+32|0,64),N0(_,32)}return X=_+112|0,0}function W5(i,n,e,r,A){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0;var _=0,s=0,h=0,a=0,u=0;if(_=X-112|0,X=_,n|e){s=o[A+28|0]|o[A+29|0]<<8|(o[A+30|0]<<16|o[A+31|0]<<24),t[_+24>>2]=o[A+24|0]|o[A+25|0]<<8|(o[A+26|0]<<16|o[A+27|0]<<24),t[_+28>>2]=s,s=o[A+20|0]|o[A+21|0]<<8|(o[A+22|0]<<16|o[A+23|0]<<24),t[_+16>>2]=o[A+16|0]|o[A+17|0]<<8|(o[A+18|0]<<16|o[A+19|0]<<24),t[_+20>>2]=s,s=o[A+12|0]|o[A+13|0]<<8|(o[A+14|0]<<16|o[A+15|0]<<24),t[_+8>>2]=o[A+8|0]|o[A+9|0]<<8|(o[A+10|0]<<16|o[A+11|0]<<24),t[_+12>>2]=s,s=o[A+4|0]|o[A+5|0]<<8|(o[A+6|0]<<16|o[A+7|0]<<24),t[_>>2]=o[A|0]|o[A+1|0]<<8|(o[A+2|0]<<16|o[A+3|0]<<24),t[_+4>>2]=s,A=o[r|0]|o[r+1|0]<<8|(o[r+2|0]<<16|o[r+3|0]<<24),r=o[r+4|0]|o[r+5|0]<<8|(o[r+6|0]<<16|o[r+7|0]<<24),t[_+104>>2]=0,t[_+108>>2]=0,t[_+96>>2]=A,t[_+100>>2]=r;e:{if(!e&n>>>0>=64|e){for(;St(i,_+96|0,_,0),r=o[_+104|0]+1|0,f[_+104|0]=r,r=o[_+105|0]+(r>>>8|0)|0,f[_+105|0]=r,r=o[_+106|0]+(r>>>8|0)|0,f[_+106|0]=r,r=o[_+107|0]+(r>>>8|0)|0,f[_+107|0]=r,r=o[_+108|0]+(r>>>8|0)|0,f[_+108|0]=r,r=o[_+109|0]+(r>>>8|0)|0,f[_+109|0]=r,r=o[_+110|0]+(r>>>8|0)|0,f[_+110|0]=r,f[_+111|0]=o[_+111|0]+(r>>>8|0),i=i- -64|0,e=e-1|0,n=n+-64|0,e=n>>>0<4294967232?e+1|0:e,!!(!e&n>>>0>63|e););if(!(n|e))break e}if(r=0,St(_+32|0,_+96|0,_,0),s=n&3,A=0,!e&n>>>0>=4|e){for(e=n&60,n=0;u=_+32|0,h=u,f[i+A|0]=o[h+A|0],a=A|1,f[a+i|0]=o[h+a|0],a=A|2,f[a+i|0]=o[h+a|0],h=A|3,f[h+i|0]=o[h+u|0],A=A+4|0,n=n+4|0,(e|0)!=(n|0););if(!s)break e}for(;f[i+A|0]=o[(_+32|0)+A|0],A=A+1|0,r=r+1|0,(s|0)!=(r|0););}N0(_+32|0,64),N0(_,32)}return X=_+112|0,0}function J5(i,n,e,r,A){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0;var _=0,s=0,h=0,a=0;if(_=X-112|0,X=_,h=n,s=e,n|s){n=o[A+28|0]|o[A+29|0]<<8|(o[A+30|0]<<16|o[A+31|0]<<24),t[_+24>>2]=o[A+24|0]|o[A+25|0]<<8|(o[A+26|0]<<16|o[A+27|0]<<24),t[_+28>>2]=n,n=o[A+20|0]|o[A+21|0]<<8|(o[A+22|0]<<16|o[A+23|0]<<24),t[_+16>>2]=o[A+16|0]|o[A+17|0]<<8|(o[A+18|0]<<16|o[A+19|0]<<24),t[_+20>>2]=n,n=o[A+12|0]|o[A+13|0]<<8|(o[A+14|0]<<16|o[A+15|0]<<24),t[_+8>>2]=o[A+8|0]|o[A+9|0]<<8|(o[A+10|0]<<16|o[A+11|0]<<24),t[_+12>>2]=n,n=o[A+4|0]|o[A+5|0]<<8|(o[A+6|0]<<16|o[A+7|0]<<24),t[_>>2]=o[A|0]|o[A+1|0]<<8|(o[A+2|0]<<16|o[A+3|0]<<24),t[_+4>>2]=n,n=o[r|0]|o[r+1|0]<<8|(o[r+2|0]<<16|o[r+3|0]<<24),e=o[r+4|0]|o[r+5|0]<<8|(o[r+6|0]<<16|o[r+7|0]<<24),t[_+104>>2]=0,t[_+108>>2]=0,t[_+96>>2]=n,t[_+100>>2]=e;e:{if(!s&h>>>0>=64|s){for(;Pt(i,_+96|0,_,0),n=o[_+104|0]+1|0,f[_+104|0]=n,n=o[_+105|0]+(n>>>8|0)|0,f[_+105|0]=n,n=o[_+106|0]+(n>>>8|0)|0,f[_+106|0]=n,n=o[_+107|0]+(n>>>8|0)|0,f[_+107|0]=n,n=o[_+108|0]+(n>>>8|0)|0,f[_+108|0]=n,n=o[_+109|0]+(n>>>8|0)|0,f[_+109|0]=n,n=o[_+110|0]+(n>>>8|0)|0,f[_+110|0]=n,f[_+111|0]=o[_+111|0]+(n>>>8|0),i=i- -64|0,s=s-1|0,h=h+-64|0,s=h>>>0<4294967232?s+1|0:s,!!(!s&h>>>0>63|s););if(!(s|h))break e}if(e=0,Pt(_+32|0,_+96|0,_,0),r=h&3,n=0,!s&h>>>0>=4|s){for(h=h&60,A=0;s=_+32|0,f[i+n|0]=o[s+n|0],a=n|1,f[a+i|0]=o[s+a|0],a=n|2,f[a+i|0]=o[s+a|0],a=n|3,f[a+i|0]=o[s+a|0],n=n+4|0,A=A+4|0,(h|0)!=(A|0););if(!r)break e}for(;f[i+n|0]=o[(_+32|0)+n|0],n=n+1|0,e=e+1|0,(r|0)!=(e|0););}N0(_+32|0,64),N0(_,32)}return X=_+112|0,0}function bi(i,n){i=i|0,n=n|0;var e=0,r=0;e=X-128|0,X=e,t[e+64>>2]=0,t[e+68>>2]=0,t[e+72>>2]=0,t[e+76>>2]=0,t[e+80>>2]=0,t[e+84>>2]=0,t[e+88>>2]=0,t[e+92>>2]=0,t[e+32>>2]=0,t[e+36>>2]=0,t[e+40>>2]=0,t[e+44>>2]=0,t[e+48>>2]=0,t[e+52>>2]=0,t[e+56>>2]=0,t[e+60>>2]=0,r=t[9821],t[e+96>>2]=t[9820],t[e+100>>2]=r,r=t[9823],t[e+104>>2]=t[9822],t[e+108>>2]=r,r=t[9825],t[e+112>>2]=t[9824],t[e+116>>2]=r,r=t[9827],t[e+120>>2]=t[9826],t[e+124>>2]=r,r=o[n+4|0]|o[n+5|0]<<8|(o[n+6|0]<<16|o[n+7|0]<<24),t[e>>2]=o[n|0]|o[n+1|0]<<8|(o[n+2|0]<<16|o[n+3|0]<<24),t[e+4>>2]=r,r=o[n+12|0]|o[n+13|0]<<8|(o[n+14|0]<<16|o[n+15|0]<<24),t[e+8>>2]=o[n+8|0]|o[n+9|0]<<8|(o[n+10|0]<<16|o[n+11|0]<<24),t[e+12>>2]=r,r=o[n+20|0]|o[n+21|0]<<8|(o[n+22|0]<<16|o[n+23|0]<<24),t[e+16>>2]=o[n+16|0]|o[n+17|0]<<8|(o[n+18|0]<<16|o[n+19|0]<<24),t[e+20>>2]=r,r=o[n+28|0]|o[n+29|0]<<8|(o[n+30|0]<<16|o[n+31|0]<<24),t[e+24>>2]=o[n+24|0]|o[n+25|0]<<8|(o[n+26|0]<<16|o[n+27|0]<<24),t[e+28>>2]=r,n=e- -64|0,H6(n,e),Me(n),r=t[e+92>>2],n=t[e+88>>2],f[i+24|0]=n,f[i+25|0]=n>>>8,f[i+26|0]=n>>>16,f[i+27|0]=n>>>24,f[i+28|0]=r,f[i+29|0]=r>>>8,f[i+30|0]=r>>>16,f[i+31|0]=r>>>24,r=t[e+84>>2],n=t[e+80>>2],f[i+16|0]=n,f[i+17|0]=n>>>8,f[i+18|0]=n>>>16,f[i+19|0]=n>>>24,f[i+20|0]=r,f[i+21|0]=r>>>8,f[i+22|0]=r>>>16,f[i+23|0]=r>>>24,r=t[e+76>>2],n=t[e+72>>2],f[i+8|0]=n,f[i+9|0]=n>>>8,f[i+10|0]=n>>>16,f[i+11|0]=n>>>24,f[i+12|0]=r,f[i+13|0]=r>>>8,f[i+14|0]=r>>>16,f[i+15|0]=r>>>24,r=t[e+68>>2],n=t[e+64>>2],f[i|0]=n,f[i+1|0]=n>>>8,f[i+2|0]=n>>>16,f[i+3|0]=n>>>24,f[i+4|0]=r,f[i+5|0]=r>>>8,f[i+6|0]=r>>>16,f[i+7|0]=r>>>24,X=e+128|0}function S6(i,n,e,r){var A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0;e:{if(s=t[i+56>>2],A=t[i+60>>2],s|A){if(h=16-s|0,B=h,_=0-((s>>>0>16)+A|0)|0,h=(_|0)==(r|0)&e>>>0>h>>>0|r>>>0>_>>>0,u=h?B:e,h=h?_:r,B=h,h|u){S=u&3,h=i- -64|0,_=0,s=0;r:{if(!B&u>>>0>=4|B){for(v=u&-4;A=_+t[i+56>>2]|0,f[A+h|0]=o[n+_|0],g=_|1,A=g+t[i+56>>2]|0,f[A+h|0]=o[n+g|0],g=_|2,A=g+t[i+56>>2]|0,f[A+h|0]=o[n+g|0],g=_|3,A=g+t[i+56>>2]|0,f[A+h|0]=o[n+g|0],A=s,_=_+4|0,s=_>>>0<4?A+1|0:A,w=w+4|0,a=w>>>0<4?a+1|0:a,!!((v|0)!=(w|0)|(a|0)!=(B|0)););if(!(S|D))break r}for(;A=_+t[i+56>>2]|0,f[A+h|0]=o[n+_|0],A=s,_=_+1|0,s=_?A:A+1|0,A=I,q=q+1|0,A=q?A:A+1|0,I=A,!!((q|0)!=(S|0)|(D|0)!=(A|0)););}s=t[i+56>>2],A=t[i+60>>2]}if(a=A+B|0,s=s+u|0,a=s>>>0<u>>>0?a+1|0:a,t[i+56>>2]=s,t[i+60>>2]=a,!a&s>>>0<16)break e;d6(i,i- -64|0,16,0),t[i+56>>2]=0,t[i+60>>2]=0,s=e,e=s-u|0,r=r-((s>>>0<u>>>0)+B|0)|0,n=n+u|0}if(!r&e>>>0>=16|r&&(s=e&-16,d6(i,n,s,r),e=e&15,r=0,n=n+s|0),!(e|r))break e;u=e&3,B=0,h=i- -64|0,q=0,I=0,_=0,s=0;r:{if(!r&e>>>0>=4|r){for(S=e&12,w=0,a=0;A=_+t[i+56>>2]|0,f[A+h|0]=o[n+_|0],v=_|1,A=v+t[i+56>>2]|0,f[A+h|0]=o[n+v|0],v=_|2,A=v+t[i+56>>2]|0,f[A+h|0]=o[n+v|0],v=_|3,A=v+t[i+56>>2]|0,f[A+h|0]=o[n+v|0],A=s,_=_+4|0,s=_>>>0<4?A+1|0:A,w=w+4|0,a=w>>>0<4?a+1|0:a,!!((w|0)!=(S|0)|(a|0)!=(D|0)););if(!(u|B))break r}for(;A=_+t[i+56>>2]|0,f[A+h|0]=o[n+_|0],_=_+1|0,s=_?s:s+1|0,A=I,q=q+1|0,A=q?A:A+1|0,I=A,!!((u|0)!=(q|0)|(B|0)!=(A|0)););}a=r+t[i+60>>2]|0,n=e+t[i+56>>2]|0,a=n>>>0<e>>>0?a+1|0:a,t[i+56>>2]=n,t[i+60>>2]=a}}function Re(i,n){i=i|0,n=n|0;var e=0,r=0,A=0,_=0,s=0,h=0,a=0;A=X-288|0,X=A,_=i+40|0,e=t[i+32>>2]>>>3&63,r=_+e|0;e:{if(e>>>0>=56){e=64-e|0,e&&_2(r,39616,e),cn(i,_,A,A+256|0),e=_,t[e+48>>2]=0,t[e+52>>2]=0,t[e+40>>2]=0,t[e+44>>2]=0,t[e+32>>2]=0,t[e+36>>2]=0,t[e+24>>2]=0,t[e+28>>2]=0,t[e+16>>2]=0,t[e+20>>2]=0,t[e+8>>2]=0,t[e+12>>2]=0,t[e>>2]=0,t[e+4>>2]=0;break e}if(e=56-e|0,!e)break e;_2(r,39616,e)}return r=t[i+32>>2],e=r&16711680,h=e>>>8|0,s=e<<24,e=r&-16777216,a=e>>>24|0,s=s|e<<8,e=t[i+36>>2],t[i+96>>2]=s|(((e&255)<<24|r>>>8)&-16777216|((e&16777215)<<8|r>>>24)&16711680|(e>>>8&65280|e>>>24)),e=h|a|(r<<24|(r&65280)<<8),t[i+100>>2]=e,cn(i,_,A,A+256|0),e=t[i>>2],e=w2(e&16711935,8)|w2(e,24)&16711935,f[n|0]=e,f[n+1|0]=e>>>8,f[n+2|0]=e>>>16,f[n+3|0]=e>>>24,e=t[i+4>>2],e=w2(e&16711935,8)|w2(e,24)&16711935,f[n+4|0]=e,f[n+5|0]=e>>>8,f[n+6|0]=e>>>16,f[n+7|0]=e>>>24,e=t[i+8>>2],e=w2(e&16711935,8)|w2(e,24)&16711935,f[n+8|0]=e,f[n+9|0]=e>>>8,f[n+10|0]=e>>>16,f[n+11|0]=e>>>24,e=t[i+12>>2],e=w2(e&16711935,8)|w2(e,24)&16711935,f[n+12|0]=e,f[n+13|0]=e>>>8,f[n+14|0]=e>>>16,f[n+15|0]=e>>>24,e=t[i+16>>2],e=w2(e&16711935,8)|w2(e,24)&16711935,f[n+16|0]=e,f[n+17|0]=e>>>8,f[n+18|0]=e>>>16,f[n+19|0]=e>>>24,e=t[i+20>>2],e=w2(e&16711935,8)|w2(e,24)&16711935,f[n+20|0]=e,f[n+21|0]=e>>>8,f[n+22|0]=e>>>16,f[n+23|0]=e>>>24,e=t[i+24>>2],e=w2(e&16711935,8)|w2(e,24)&16711935,f[n+24|0]=e,f[n+25|0]=e>>>8,f[n+26|0]=e>>>16,f[n+27|0]=e>>>24,e=t[i+28>>2],e=w2(e&16711935,8)|w2(e,24)&16711935,f[n+28|0]=e,f[n+29|0]=e>>>8,f[n+30|0]=e>>>16,f[n+31|0]=e>>>24,N0(A,288),N0(i,104),X=A+288|0,0}function b5(i,n,e,r,A){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0;var _=0,s=0,h=0,a=0,u=0;if(_=X,u=_,_=_-512&-64,X=_,s=i||n,s)return a=-1,h=_+96|0,b1(h,r,A)||(r=_+128|0,oe(r,0,0,64),G2(r,h,32,0),N0(h,32),G2(r,e,32,0),G2(r,A,32,0),e=_+32|0,he(r,e,64),N0(r,384),f[s|0]=o[_+32|0],i=n||i,f[i|0]=o[_+64|0],f[s+1|0]=o[_+33|0],f[i+1|0]=o[_+65|0],f[s+2|0]=o[_+34|0],f[i+2|0]=o[_+66|0],f[s+3|0]=o[_+35|0],f[i+3|0]=o[_+67|0],f[s+4|0]=o[_+36|0],f[i+4|0]=o[_+68|0],f[s+5|0]=o[_+37|0],f[i+5|0]=o[_+69|0],f[s+6|0]=o[_+38|0],f[i+6|0]=o[_+70|0],f[s+7|0]=o[_+39|0],f[i+7|0]=o[_+71|0],f[s+8|0]=o[_+40|0],f[i+8|0]=o[_+72|0],f[s+9|0]=o[_+41|0],f[i+9|0]=o[_+73|0],f[s+10|0]=o[_+42|0],f[i+10|0]=o[_+74|0],f[s+11|0]=o[_+43|0],f[i+11|0]=o[_+75|0],f[s+12|0]=o[_+44|0],f[i+12|0]=o[_+76|0],f[s+13|0]=o[_+45|0],f[i+13|0]=o[_+77|0],f[s+14|0]=o[_+46|0],f[i+14|0]=o[_+78|0],f[s+15|0]=o[_+47|0],f[i+15|0]=o[_+79|0],f[s+16|0]=o[_+48|0],f[i+16|0]=o[_+80|0],f[s+17|0]=o[_+49|0],f[i+17|0]=o[_+81|0],f[s+18|0]=o[_+50|0],f[i+18|0]=o[_+82|0],f[s+19|0]=o[_+51|0],f[i+19|0]=o[_+83|0],f[s+20|0]=o[_+52|0],f[i+20|0]=o[_+84|0],f[s+21|0]=o[_+53|0],f[i+21|0]=o[_+85|0],f[s+22|0]=o[_+54|0],f[i+22|0]=o[_+86|0],f[s+23|0]=o[_+55|0],f[i+23|0]=o[_+87|0],f[s+24|0]=o[_+56|0],f[i+24|0]=o[_+88|0],f[s+25|0]=o[_+57|0],f[i+25|0]=o[_+89|0],f[s+26|0]=o[_+58|0],f[i+26|0]=o[_+90|0],f[s+27|0]=o[_+59|0],f[i+27|0]=o[_+91|0],f[s+28|0]=o[_+60|0],f[i+28|0]=o[_+92|0],f[s+29|0]=o[_+61|0],f[i+29|0]=o[_+93|0],f[s+30|0]=o[_+62|0],f[i+30|0]=o[_+94|0],f[s+31|0]=o[_+63|0],f[i+31|0]=o[_+95|0],N0(e,64),a=0),X=u,a|0;Q2(),C2()}function e3(i,n,e,r,A){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0;var _=0,s=0,h=0,a=0,u=0;if(_=X,u=_,_=_-512&-64,X=_,s=i||n,s)return a=-1,h=_+96|0,b1(h,r,A)||(r=_+128|0,oe(r,0,0,64),G2(r,h,32,0),N0(h,32),G2(r,A,32,0),G2(r,e,32,0),e=_+32|0,he(r,e,64),N0(r,384),i=n||i,f[i|0]=o[_+32|0],f[s|0]=o[_+64|0],f[i+1|0]=o[_+33|0],f[s+1|0]=o[_+65|0],f[i+2|0]=o[_+34|0],f[s+2|0]=o[_+66|0],f[i+3|0]=o[_+35|0],f[s+3|0]=o[_+67|0],f[i+4|0]=o[_+36|0],f[s+4|0]=o[_+68|0],f[i+5|0]=o[_+37|0],f[s+5|0]=o[_+69|0],f[i+6|0]=o[_+38|0],f[s+6|0]=o[_+70|0],f[i+7|0]=o[_+39|0],f[s+7|0]=o[_+71|0],f[i+8|0]=o[_+40|0],f[s+8|0]=o[_+72|0],f[i+9|0]=o[_+41|0],f[s+9|0]=o[_+73|0],f[i+10|0]=o[_+42|0],f[s+10|0]=o[_+74|0],f[i+11|0]=o[_+43|0],f[s+11|0]=o[_+75|0],f[i+12|0]=o[_+44|0],f[s+12|0]=o[_+76|0],f[i+13|0]=o[_+45|0],f[s+13|0]=o[_+77|0],f[i+14|0]=o[_+46|0],f[s+14|0]=o[_+78|0],f[i+15|0]=o[_+47|0],f[s+15|0]=o[_+79|0],f[i+16|0]=o[_+48|0],f[s+16|0]=o[_+80|0],f[i+17|0]=o[_+49|0],f[s+17|0]=o[_+81|0],f[i+18|0]=o[_+50|0],f[s+18|0]=o[_+82|0],f[i+19|0]=o[_+51|0],f[s+19|0]=o[_+83|0],f[i+20|0]=o[_+52|0],f[s+20|0]=o[_+84|0],f[i+21|0]=o[_+53|0],f[s+21|0]=o[_+85|0],f[i+22|0]=o[_+54|0],f[s+22|0]=o[_+86|0],f[i+23|0]=o[_+55|0],f[s+23|0]=o[_+87|0],f[i+24|0]=o[_+56|0],f[s+24|0]=o[_+88|0],f[i+25|0]=o[_+57|0],f[s+25|0]=o[_+89|0],f[i+26|0]=o[_+58|0],f[s+26|0]=o[_+90|0],f[i+27|0]=o[_+59|0],f[s+27|0]=o[_+91|0],f[i+28|0]=o[_+60|0],f[s+28|0]=o[_+92|0],f[i+29|0]=o[_+61|0],f[s+29|0]=o[_+93|0],f[i+30|0]=o[_+62|0],f[s+30|0]=o[_+94|0],f[i+31|0]=o[_+63|0],f[s+31|0]=o[_+95|0],N0(e,64),a=0),X=u,a|0;Q2(),C2()}function r3(i,n,e,r,A,_,s){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0,_=_|0,s=s|0;var h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0;w=n,n=A,A=0,n=n|A,h=X-128|0,X=h,q=i,k2(i,0,102),v=22,S=e|A;e:{{r:{if(r)break r;T6(n,_,s,h+16|0,h+12|0,h+8|0),a=h+96|0,q1(a,32),v=28,n=h+32|0,r=t[h+16>>2],i=t[h+12>>2],e=t[h+8>>2],_=T(i,0,e,0),s=c;t:{if(!s&_>>>0>1073741823|s|r>>>0>63||(f[n|0]=36,f[n+1|0]=55,f[n+2|0]=36,f[n+4|0]=o[(e&63)+1024|0],f[n+3|0]=o[r+1024|0],f[n+8|0]=o[(e>>>24&63)+1024|0],f[n+7|0]=o[(e>>>18&63)+1024|0],f[n+6|0]=o[(e>>>12&63)+1024|0],f[n+5|0]=o[(e>>>6&63)+1024|0],e=n+9|0,!e)||(u=n+58|0,(e|0)==(u|0))||(f[e|0]=o[(i&63)+1024|0],e=u-e|0,(e|0)==1)||(f[n+10|0]=o[(i>>>6&63)+1024|0],(e|0)==2)||(f[n+11|0]=o[(i>>>12&63)+1024|0],(e|0)==3)||(f[n+12|0]=o[(i>>>18&63)+1024|0],(e|0)==4)||(f[n+13|0]=o[(i>>>24&63)+1024|0],e=n+14|0,!e))break t;for(s=u-e|0,i=0;;){n:{if(r=e,i>>>0>=32)break n;e=o[i+a|0],_=i+1|0,g=_>>>0>=32;A:{if(g){B=0;break A}if(e=o[_+a|0]<<8|e,_=i+2|0,_>>>0>=32){B=0;break A}e=o[_+a|0]<<16|e,B=1,_=i+3|0}if(i=_,!s||(f[r|0]=o[(e&63)+1024|0],(s|0)==1))break t;f[r+1|0]=o[(e>>>6&63)+1024|0],I=r+s|0,_=r+2|0;A:{if(g)break A;if((s|0)==2)break t;if(f[r+2|0]=o[(e>>>12&63)+1024|0],_=r+3|0,!B)break A;if((s|0)==3)break t;f[r+3|0]=o[(e>>>18|0)+1024|0],_=r+4|0}if(e=_,s=I-e|0,e)continue;break t}break}if(r>>>0>=u>>>0)break t;f[r|0]=0,A=n}if(!A||(i=h+20|0,Y6(i),n=i4(i,w,S,n,q),Dn(i),!n))break r;i=0;break e}t[10172]=v}i=-1}return X=h+128|0,i|0}function Le(i,n,e){var r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0;q=t[n+4>>2],r=t[i+4>>2],S=t[n+8>>2],A=t[i+8>>2],I=t[n+12>>2],_=t[i+12>>2],D=t[n+16>>2],s=t[i+16>>2],M=t[n+20>>2],h=t[i+20>>2],Y=t[n+24>>2],a=t[i+24>>2],g=t[n+28>>2],u=t[i+28>>2],N=t[n+32>>2],B=t[i+32>>2],Q=t[n+36>>2],v=t[i+36>>2],e=0-e|0,w=t[i>>2],t[i>>2]=e&(w^t[n>>2])^w,t[i+36>>2]=v^e&(v^Q),t[i+32>>2]=B^e&(B^N),t[i+28>>2]=u^e&(u^g),t[i+24>>2]=a^e&(a^Y),t[i+20>>2]=h^e&(h^M),t[i+16>>2]=s^e&(s^D),t[i+12>>2]=_^e&(_^I),t[i+8>>2]=A^e&(A^S),t[i+4>>2]=r^e&(r^q),r=t[i+40>>2],q=t[n+40>>2],A=t[i+44>>2],S=t[n+44>>2],_=t[i+48>>2],I=t[n+48>>2],s=t[i+52>>2],D=t[n+52>>2],h=t[i+56>>2],M=t[n+56>>2],a=t[i+60>>2],Y=t[n+60>>2],g=i- -64|0,u=t[g>>2],N=t[n- -64>>2],B=t[i+68>>2],Q=t[n+68>>2],v=t[i+72>>2],w=t[n+72>>2],G=t[i+76>>2],t[i+76>>2]=G^e&(t[n+76>>2]^G),t[i+72>>2]=v^e&(v^w),t[i+68>>2]=B^e&(B^Q),t[g>>2]=u^e&(u^N),t[i+60>>2]=a^e&(a^Y),t[i+56>>2]=h^e&(h^M),t[i+52>>2]=s^e&(s^D),t[i+48>>2]=_^e&(_^I),t[i+44>>2]=A^e&(A^S),t[i+40>>2]=r^e&(r^q),r=t[i+80>>2],q=t[n+80>>2],A=t[i+84>>2],S=t[n+84>>2],_=t[i+88>>2],I=t[n+88>>2],s=t[i+92>>2],D=t[n+92>>2],h=t[i+96>>2],M=t[n+96>>2],a=t[i+100>>2],Y=t[n+100>>2],u=t[i+104>>2],g=t[n+104>>2],B=t[i+108>>2],N=t[n+108>>2],v=t[i+112>>2],Q=t[n+112>>2],w=t[n+116>>2],n=t[i+116>>2],t[i+116>>2]=e&(w^n)^n,t[i+112>>2]=v^e&(v^Q),t[i+108>>2]=B^e&(B^N),t[i+104>>2]=u^e&(u^g),t[i+100>>2]=a^e&(a^Y),t[i+96>>2]=h^e&(h^M),t[i+92>>2]=s^e&(s^D),t[i+88>>2]=_^e&(_^I),t[i+84>>2]=A^e&(A^S),t[i+80>>2]=r^e&(r^q)}function pr(i,n){var e=0,r=0,A=0;for(e=X-192|0,X=e,A=e+144|0,U(A,n),r=e+96|0,U(r,A),U(r,r),A0(r,n,r),A0(A,A,r),n=e+48|0,U(n,A),A0(r,r,n),U(n,r),U(n,n),U(n,n),U(n,n),U(n,n),A0(r,n,r),U(n,r),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),A0(n,n,r),U(e,n),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),A0(n,e,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),A0(r,n,r),U(n,r),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),A0(n,n,r),U(e,n),n=1;U(e,e),n=n+1|0,(n|0)!=100;);n=e+48|0,A0(n,e,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),U(n,n),r=e+96|0,A0(r,n,r),U(r,r),U(r,r),U(r,r),U(r,r),U(r,r),A0(i,r,e+144|0),X=e+192|0}function t3(i){i=i|0;var n=0,e=0,r=0;e=X-48|0,X=e,n=o[i+28|0]|o[i+29|0]<<8|(o[i+30|0]<<16|o[i+31|0]<<24),t[e+24>>2]=o[i+24|0]|o[i+25|0]<<8|(o[i+26|0]<<16|o[i+27|0]<<24),t[e+28>>2]=n,n=o[i+20|0]|o[i+21|0]<<8|(o[i+22|0]<<16|o[i+23|0]<<24),t[e+16>>2]=o[i+16|0]|o[i+17|0]<<8|(o[i+18|0]<<16|o[i+19|0]<<24),t[e+20>>2]=n,n=o[i+12|0]|o[i+13|0]<<8|(o[i+14|0]<<16|o[i+15|0]<<24),t[e+8>>2]=o[i+8|0]|o[i+9|0]<<8|(o[i+10|0]<<16|o[i+11|0]<<24),t[e+12>>2]=n,n=o[i+4|0]|o[i+5|0]<<8|(o[i+6|0]<<16|o[i+7|0]<<24),t[e>>2]=o[i|0]|o[i+1|0]<<8|(o[i+2|0]<<16|o[i+3|0]<<24),t[e+4>>2]=n,n=o[i+40|0]|o[i+41|0]<<8|(o[i+42|0]<<16|o[i+43|0]<<24),t[e+32>>2]=o[i+36|0]|o[i+37|0]<<8|(o[i+38|0]<<16|o[i+39|0]<<24),t[e+36>>2]=n,xn(e,e,40,0,i+32|0,i),n=t[e+28>>2],r=t[e+24>>2],f[i+24|0]=r,f[i+25|0]=r>>>8,f[i+26|0]=r>>>16,f[i+27|0]=r>>>24,f[i+28|0]=n,f[i+29|0]=n>>>8,f[i+30|0]=n>>>16,f[i+31|0]=n>>>24,n=t[e+20>>2],r=t[e+16>>2],f[i+16|0]=r,f[i+17|0]=r>>>8,f[i+18|0]=r>>>16,f[i+19|0]=r>>>24,f[i+20|0]=n,f[i+21|0]=n>>>8,f[i+22|0]=n>>>16,f[i+23|0]=n>>>24,n=t[e+12>>2],r=t[e+8>>2],f[i+8|0]=r,f[i+9|0]=r>>>8,f[i+10|0]=r>>>16,f[i+11|0]=r>>>24,f[i+12|0]=n,f[i+13|0]=n>>>8,f[i+14|0]=n>>>16,f[i+15|0]=n>>>24,n=t[e+4>>2],r=t[e>>2],f[i|0]=r,f[i+1|0]=r>>>8,f[i+2|0]=r>>>16,f[i+3|0]=r>>>24,f[i+4|0]=n,f[i+5|0]=n>>>8,f[i+6|0]=n>>>16,f[i+7|0]=n>>>24,r=t[e+36>>2],n=t[e+32>>2],f[i+32|0]=1,f[i+33|0]=0,f[i+34|0]=0,f[i+35|0]=0,f[i+36|0]=n,f[i+37|0]=n>>>8,f[i+38|0]=n>>>16,f[i+39|0]=n>>>24,f[i+40|0]=r,f[i+41|0]=r>>>8,f[i+42|0]=r>>>16,f[i+43|0]=r>>>24,X=e+48|0}function P6(i,n){var e=0,r=0,A=0;for(r=X-144|0,X=r,A=r+96|0,U(A,n),e=r+48|0,U(e,A),U(e,e),A0(e,n,e),A0(A,A,e),U(A,A),A0(A,e,A),U(e,A),U(e,e),U(e,e),U(e,e),U(e,e),A0(A,e,A),U(e,A),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),A0(e,e,A),U(r,e),U(r,r),U(r,r),U(r,r),U(r,r),U(r,r),U(r,r),U(r,r),U(r,r),U(r,r),U(r,r),U(r,r),U(r,r),U(r,r),U(r,r),U(r,r),U(r,r),U(r,r),U(r,r),U(r,r),A0(e,r,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),A0(A,e,A),U(e,A),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),A0(e,e,A),U(r,e),e=1;U(r,r),e=e+1|0,(e|0)!=100;);e=r+48|0,A0(e,r,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),U(e,e),A=r+96|0,A0(A,e,A),U(A,A),U(A,A),A0(i,A,n),X=r+144|0}function e4(i,n){var e=0,r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0,z=0;e=X-320|0,X=e,s=i+40|0,ar(s,n),t[i+84>>2]=0,t[i+88>>2]=0,t[i+80>>2]=1,t[i+92>>2]=0,t[i+96>>2]=0,t[i+100>>2]=0,t[i+104>>2]=0,t[i+108>>2]=0,t[i+112>>2]=0,t[i+116>>2]=0,_=e+240|0,U(_,s),A=e+192|0,A0(A,_,1584),a=-1,h=t[e+240>>2]-1|0,t[e+240>>2]=h,t[e+192>>2]=t[e+192>>2]+1,u=t[e+244>>2],B=t[e+248>>2],v=t[e+252>>2],g=t[e+256>>2],w=t[e+260>>2],q=t[e+264>>2],S=t[e+268>>2],I=t[e+272>>2],D=t[e+276>>2],r=e+144|0,U(r,A),A0(r,r,A),U(i,r),A0(i,i,A),A0(i,i,_),P6(i,i),A0(i,i,r),A0(i,i,_),r=e+96|0,U(r,i),A0(r,r,A),A=t[e+132>>2],t[e+84>>2]=A-D,r=t[e+128>>2],t[e+80>>2]=r-I,_=t[e+124>>2],t[e+76>>2]=_-S,M=t[e+120>>2],t[e+72>>2]=M-q,Y=t[e+116>>2],t[e+68>>2]=Y-w,N=t[e+112>>2],t[e+64>>2]=N-g,Q=t[e+108>>2],t[e+60>>2]=Q-v,G=t[e+104>>2],t[e+56>>2]=G-B,K=t[e+100>>2],t[e+52>>2]=K-u,z=t[e+96>>2],t[e+48>>2]=z-h,V2(e,e+48|0);e:{if(!j1(e,32)){if(t[e+36>>2]=A+D,t[e+32>>2]=r+I,t[e+28>>2]=_+S,t[e+24>>2]=q+M,t[e+20>>2]=w+Y,t[e+16>>2]=g+N,t[e+12>>2]=v+Q,t[e+8>>2]=B+G,t[e+4>>2]=u+K,t[e>>2]=h+z,A=e+288|0,V2(A,e),!j1(A,32))break e;A0(i,i,1632)}V2(e+288|0,i),(f[e+288|0]&1)==(o[n+31|0]>>>7|0)&&(t[i>>2]=0-t[i>>2],t[i+36>>2]=0-t[i+36>>2],t[i+32>>2]=0-t[i+32>>2],t[i+28>>2]=0-t[i+28>>2],t[i+24>>2]=0-t[i+24>>2],t[i+20>>2]=0-t[i+20>>2],t[i+16>>2]=0-t[i+16>>2],t[i+12>>2]=0-t[i+12>>2],t[i+8>>2]=0-t[i+8>>2],t[i+4>>2]=0-t[i+4>>2]),A0(i+120|0,i,s),a=0}return X=e+320|0,a}function r4(i,n,e){var r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0;r=X-128|0,X=r,A=o[41218],t[i+4>>2]=0,t[i+8>>2]=0,t[i>>2]=1,t[i+12>>2]=0,t[i+16>>2]=0,t[i+20>>2]=0,t[i+24>>2]=0,t[i+28>>2]=0,t[i+32>>2]=0,t[i+36>>2]=0,t[i+40>>2]=1,k2(i+44|0,0,76),n=i2(n,960)+2992|0,A=A>>>2^(e&128)>>>7,e=e-((0-A&e)<<1)|0,Le(i,n,o[41218]>>>2^((e^1)&255)-1>>>31),Le(i,n+120|0,o[41218]>>>2^((e^2)&255)-1>>>31),Le(i,n+240|0,o[41218]>>>2^((e^3)&255)-1>>>31),Le(i,n+360|0,o[41218]>>>2^((e^4)&255)-1>>>31),Le(i,n+480|0,o[41218]>>>2^((e^5)&255)-1>>>31),Le(i,n+600|0,o[41218]>>>2^((e^6)&255)-1>>>31),Le(i,n+720|0,o[41218]>>>2^((e^7)&255)-1>>>31),Le(i,n+840|0,o[41218]>>>2^((e^8)&255)-1>>>31),n=t[i+76>>2],t[r+40>>2]=t[i+72>>2],t[r+44>>2]=n,n=i- -64|0,e=t[n+4>>2],t[r+32>>2]=t[n>>2],t[r+36>>2]=e,n=t[i+60>>2],t[r+24>>2]=t[i+56>>2],t[r+28>>2]=n,n=t[i+52>>2],t[r+16>>2]=t[i+48>>2],t[r+20>>2]=n,n=t[i+44>>2],t[r+8>>2]=t[i+40>>2],t[r+12>>2]=n,n=t[i+4>>2],t[r+48>>2]=t[i>>2],t[r+52>>2]=n,n=t[i+12>>2],t[r+56>>2]=t[i+8>>2],t[r+60>>2]=n,n=t[i+20>>2],t[r+64>>2]=t[i+16>>2],t[r+68>>2]=n,n=t[i+28>>2],t[r+72>>2]=t[i+24>>2],t[r+76>>2]=n,n=t[i+36>>2],t[r+80>>2]=t[i+32>>2],t[r+84>>2]=n,n=t[i+80>>2],e=t[i+84>>2],_=t[i+88>>2],s=t[i+92>>2],h=t[i+96>>2],a=t[i+100>>2],u=t[i+104>>2],B=t[i+108>>2],v=t[i+112>>2],t[r+124>>2]=0-t[i+116>>2],t[r+120>>2]=0-v,t[r+116>>2]=0-B,t[r+112>>2]=0-u,t[r+108>>2]=0-a,t[r+104>>2]=0-h,t[r+100>>2]=0-s,t[r+96>>2]=0-_,t[r+92>>2]=0-e,t[r+88>>2]=0-n,Le(i,r+8|0,A),X=r+128|0}function n3(i,n){i=i|0,n=n|0;var e=0,r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0;return e=X-304|0,X=e,f[i|0]=o[n|0],f[i+1|0]=o[n+1|0],f[i+2|0]=o[n+2|0],f[i+3|0]=o[n+3|0],f[i+4|0]=o[n+4|0],f[i+5|0]=o[n+5|0],f[i+6|0]=o[n+6|0],f[i+7|0]=o[n+7|0],f[i+8|0]=o[n+8|0],f[i+9|0]=o[n+9|0],f[i+10|0]=o[n+10|0],f[i+11|0]=o[n+11|0],f[i+12|0]=o[n+12|0],f[i+13|0]=o[n+13|0],f[i+14|0]=o[n+14|0],f[i+15|0]=o[n+15|0],f[i+16|0]=o[n+16|0],f[i+17|0]=o[n+17|0],f[i+18|0]=o[n+18|0],f[i+19|0]=o[n+19|0],f[i+20|0]=o[n+20|0],f[i+21|0]=o[n+21|0],f[i+22|0]=o[n+22|0],f[i+23|0]=o[n+23|0],f[i+24|0]=o[n+24|0],f[i+25|0]=o[n+25|0],f[i+26|0]=o[n+26|0],f[i+27|0]=o[n+27|0],f[i+28|0]=o[n+28|0],f[i+29|0]=o[n+29|0],f[i+30|0]=o[n+30|0],n=o[n+31|0],f[i|0]=o[i|0]&248,f[i+31|0]=n&63|64,Qr(e+48|0,i),n=t[e+128>>2],r=t[e+88>>2],A=t[e+132>>2],_=t[e+92>>2],s=t[e+136>>2],h=t[e+96>>2],a=t[e+140>>2],u=t[e+100>>2],B=t[e+144>>2],v=t[e+104>>2],g=t[e+148>>2],w=t[e+108>>2],q=t[e+152>>2],S=t[e+112>>2],I=t[e+156>>2],D=t[e+116>>2],M=t[e+160>>2],Y=t[e+120>>2],N=t[e+124>>2],Q=t[e+164>>2],t[e+292>>2]=N+Q,t[e+288>>2]=M+Y,t[e+284>>2]=I+D,t[e+280>>2]=q+S,t[e+276>>2]=g+w,t[e+272>>2]=B+v,t[e+268>>2]=a+u,t[e+264>>2]=s+h,t[e+260>>2]=A+_,t[e+256>>2]=n+r,t[e+244>>2]=Q-N,t[e+240>>2]=M-Y,t[e+236>>2]=I-D,t[e+232>>2]=q-S,t[e+228>>2]=g-w,t[e+224>>2]=B-v,t[e+220>>2]=a-u,t[e+216>>2]=s-h,t[e+212>>2]=A-_,t[e+208>>2]=n-r,n=e+208|0,pr(n,n),A0(e,e+256|0,n),V2(i,e),X=e+304|0,0}function dt(i){var n=0,e=0,r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0,G=0,K=0,z=0,$=0,V=0,W=0,e0=0;return n=X-320|0,X=n,r=n+240|0,U(r,i),A=n+192|0,U(A,i+40|0),e=n+144|0,U(e,i+80|0),i=t[n+240>>2],_=t[n+192>>2],s=t[n+244>>2],h=t[n+196>>2],a=t[n+248>>2],u=t[n+200>>2],B=t[n+252>>2],v=t[n+204>>2],g=t[n+256>>2],w=t[n+208>>2],q=t[n+260>>2],S=t[n+212>>2],I=t[n+264>>2],D=t[n+216>>2],M=t[n+268>>2],Y=t[n+220>>2],N=t[n+272>>2],Q=t[n+224>>2],t[n+84>>2]=t[n+228>>2]-t[n+276>>2],t[n+80>>2]=Q-N,t[n+76>>2]=Y-M,t[n+72>>2]=D-I,t[n+68>>2]=S-q,t[n+64>>2]=w-g,t[n+60>>2]=v-B,t[n+56>>2]=u-a,t[n+52>>2]=h-s,t[n+48>>2]=_-i,i=n+48|0,A0(i,i,e),A0(n,r,A),A0(n,n,1584),U(n+96|0,e),e=t[n+48>>2],r=t[n+96>>2],A=t[n>>2],_=t[n+52>>2],s=t[n+100>>2],h=t[n+4>>2],a=t[n+56>>2],u=t[n+104>>2],B=t[n+8>>2],v=t[n+60>>2],g=t[n+108>>2],w=t[n+12>>2],q=t[n+64>>2],S=t[n+112>>2],I=t[n+16>>2],D=t[n+68>>2],M=t[n+116>>2],Y=t[n+20>>2],N=t[n+72>>2],Q=t[n+120>>2],G=t[n+24>>2],K=t[n+76>>2],z=t[n+124>>2],$=t[n+28>>2],V=t[n+80>>2],W=t[n+128>>2],e0=t[n+32>>2],t[n+84>>2]=t[n+84>>2]-(t[n+132>>2]+t[n+36>>2]|0),t[n+80>>2]=V-(W+e0|0),t[n+76>>2]=K-(z+$|0),t[n+72>>2]=N-(Q+G|0),t[n+68>>2]=D-(M+Y|0),t[n+64>>2]=q-(S+I|0),t[n+60>>2]=v-(g+w|0),t[n+56>>2]=a-(u+B|0),t[n+52>>2]=_-(s+h|0),t[n+48>>2]=e-(r+A|0),e=n+288|0,V2(e,i),i=j1(e,32),X=n+320|0,i}function I6(i,n,e,r,A){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0;var _=0,s=0,h=0,a=0,u=0,B=0,v=0;e:{r:{t:{n:{A:{i:{if((A&-7)!=1)break i;_=(r>>>0)/3|0,h=_<<2,_=i2(_,-3)+r|0;s:{if(!_)break s;if(!(A&2)){h=h+4|0;break s}h=((_>>>1|0)+h|0)+2|0}if(n>>>0<=h>>>0)break i;s:{if(A>>>0>=4){if(!r){A=0;break r}_=0,A=0;break s}if(!r){A=0;break r}_=0,A=0;break A}for(;;){for(u=o[e+a|0]|u<<8,_=_|8;_=_-6|0,s=u>>>_&63,B=s+65510>>>8|0,v=s+65484>>>8|0,f[i+A|0]=((s^16321)+1^-1)>>>8&45|((s+32705^-1)>>>8&95|(v&(s+71&(B^-1))|B&s+65)|s+252&s+65474>>>8&(v^-1)),A=A+1|0,_>>>0>5;);if(a=a+1|0,(a|0)==(r|0))break}if(!_)break t;a=45,s=95,r=32705;break n}Q2(),C2()}for(;;){for(u=o[e+a|0]|u<<8,_=_|8;_=_-6|0,s=u>>>_&63,B=s+65510>>>8|0,v=s+65484>>>8|0,f[i+A|0]=((s^16321)+1^-1)>>>8&43|((s+16321^-1)>>>8&47|(v&(s+71&(B^-1))|B&s+65)|s+252&s+65474>>>8&(v^-1)),A=A+1|0,_>>>0>5;);if(a=a+1|0,(a|0)==(r|0))break}if(!_)break t;a=43,s=47,r=16321}e=u<<6-_&63,_=e+65510>>>8|0,u=e+65484>>>8|0,f[i+A|0]=((e^16321)+1^-1)>>>8&a|(s&(e+r^-1)>>>8|(u&(e+71&(_^-1))|_&e+65)|e+252&e+65474>>>8&(u^-1)),A=A+1|0}if(A>>>0>h>>>0)break e}r:{if(A>>>0>=h>>>0){h=A;break r}if(e=h-A|0,!e)break r;k2(i+A|0,61,e)}return e=h+1|0,n=(n>>>0>e>>>0?n:e)-h|0,n&&k2(i+h|0,0,n),i|0}an(1104,1218,231,1503),C2()}function G2(i,n,e,r){var A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0;if(e|r)e:for(v=i+224|0,B=i+96|0,_=o[i+352|0]|o[i+353|0]<<8|(o[i+354|0]<<16|o[i+355|0]<<24),s=i- -64|0;;){if(A=_+B|0,a=256-_|0,!r&e>>>0<=a>>>0){e&&_2(A,n,e),n=e+(o[i+352|0]|o[i+353|0]<<8|(o[i+354|0]<<16|o[i+355|0]<<24))|0,f[i+352|0]=n,f[i+353|0]=n>>>8,f[i+354|0]=n>>>16,f[i+355|0]=n>>>24;break e}if(a&&_2(A,n,a),A=a+(o[i+352|0]|o[i+353|0]<<8|(o[i+354|0]<<16|o[i+355|0]<<24))|0,f[i+352|0]=A,f[i+353|0]=A>>>8,f[i+354|0]=A>>>16,f[i+355|0]=A>>>24,_=o[s+4|0]|o[s+5|0]<<8|(o[s+6|0]<<16|o[s+7|0]<<24),g=_,h=o[s|0]|o[s+1|0]<<8|(o[s+2|0]<<16|o[s+3|0]<<24),u=h+128|0,_=u>>>0<128?_+1|0:_,A=s,f[A|0]=u,f[A+1|0]=u>>>8,f[A+2|0]=u>>>16,f[A+3|0]=u>>>24,f[A+4|0]=_,f[A+5|0]=_>>>8,f[A+6|0]=_>>>16,f[A+7|0]=_>>>24,_=o[i+76|0]|o[i+77|0]<<8|(o[i+78|0]<<16|o[i+79|0]<<24),A=(g|0)==-1&h>>>0>4294967167,h=A+(o[i+72|0]|o[i+73|0]<<8|(o[i+74|0]<<16|o[i+75|0]<<24))|0,_=A>>>0>h>>>0?_+1|0:_,f[i+72|0]=h,f[i+73|0]=h>>>8,f[i+74|0]=h>>>16,f[i+75|0]=h>>>24,f[i+76|0]=_,f[i+77|0]=_>>>8,f[i+78|0]=_>>>16,f[i+79|0]=_>>>24,jt(i,B),_2(B,v,128),_=(o[i+352|0]|o[i+353|0]<<8|(o[i+354|0]<<16|o[i+355|0]<<24))-128|0,A=_,f[i+352|0]=A,f[i+353|0]=A>>>8,f[i+354|0]=A>>>16,f[i+355|0]=A>>>24,n=n+a|0,r=r-(e>>>0<a>>>0)|0,e=e-a|0,!(r|e))break}return 0}function A3(i,n,e,r,A,_,s){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0,_=_|0,s=s|0;var h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0;e:{r:{t:{n:{A:{i:{s:{_:{l:{if(r){if(A)break l;for(a=1,A=0;;){if(v=o[e+h|0],u=(v&223)-55&255,w=(u+65526^u+65520)>>>8|0,v=v^48,q=v+65526>>>8|0,!((w|q)&255))break s;if(n>>>0<=g>>>0)break _;u=u&w|v&q;o:{if(!(B&255)){A=u<<4;break o}f[i+g|0]=A|u,g=g+1|0}if(B=B^-1,h=h+1|0,(h|0)==(r|0))break}h=r;break s}if(i=0,!s)break e;break t}for(;;){l:{o:{h:{u:{y:{if(u=o[e+h|0],a=(u&223)-55&255,v=(a+65526^a+65520)>>>8|0,w=u^48,q=w+65526>>>8|0,!((v|q)&255)){if(B&255)break i;if(a=0,!Xr(A,u))break n;if(B=h+1|0,h=B,h>>>0<r>>>0)break y;break n}if(n>>>0<=g>>>0)break _;if(a=a&v|w&q,!(B&255))break u;f[i+g|0]=a|S,B=B^-1,g=g+1|0;break l}for(;;){if(u=o[e+h|0],v=(u&223)-55&255,w=(v+65526^v+65520)>>>8|0,q=u^48,S=q+65526>>>8|0,!((w|S)&255)){if(!Xr(A,u))break n;if(h=h+1|0,h>>>0<r>>>0)continue;break h}break}if(n>>>0<=g>>>0)break o;a=v&w|q&S}S=a<<4,B=255;break l}h=r>>>0>B>>>0?r:B;break n}B=0;break _}if(a=1,h=h+1|0,!(h>>>0<r>>>0))break}break s}t[10172]=68,a=0}if(!(B&255))break A}t[10172]=28,a=-1,h=h-1|0,g=0;break n}g=a?g:0,a=a-1|0}if(s)break t;if((r|0)!=(h|0))break r;i=a;break e}t[s>>2]=e+h,i=a;break e}t[10172]=28,i=-1}return _&&(t[_>>2]=g),i|0}function t4(i,n,e){var r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0;A=X-16|0,X=A,u=t[i+20>>2],t[i+20>>2]=0,B=t[i+4>>2],t[i+4>>2]=0,h=-26;e:{r:{t:{n:switch(e-1|0){case 1:if(Ur(n,1182,9))break r;n=n+9|0;break t;case 0:break n;default:break e}if(Ur(n,1173,8))break r;n=n+8|0}if(o[n|0]!=36|o[n+1|0]!=118|o[n+2|0]!=61||(_=n+3|0,a=o[_|0],(a-58&255)>>>0<246))break r;for(n=0,s=a,e=_;;){if(r=e,n>>>0>429496729||(e=(s&255)-48|0,n=i2(n,10),e>>>0>(n^-1)>>>0))break r;if(n=n+e|0,e=r+1|0,s=o[e|0],!((s-58&255)>>>0>245))break}if((a|0)==48&(r|0)!=(_|0)|(e|0)==(_|0))break r;if((n|0)!=19)break e;if((s&255)!=36|o[r+2|0]!=109|o[r+3|0]!=61||(n=A+12|0,e=E6(r+4|0,n),!e)||(t[i+44>>2]=t[A+12>>2],o[e|0]!=44|o[e+1|0]!=116|o[e+2|0]!=61)||(e=E6(e+3|0,n),!e)||(t[i+40>>2]=t[A+12>>2],o[e|0]!=44|o[e+1|0]!=112|o[e+2|0]!=61)||(e=E6(e+3|0,n),!e)||(r=t[A+12>>2],t[i+48>>2]=r,t[i+52>>2]=r,o[e|0]!=36)||(t[A+12>>2]=u,_=t[i+16>>2],e=e+1|0,r=e,s=ee(e),e=A+8|0,m6(_,u,r,s,0,n,e,3))||(t[i+20>>2]=t[A+12>>2],r=t[A+8>>2],o[r|0]!=36)||(t[A+12>>2]=B,r=r+1|0,m6(t[i>>2],B,r,ee(r),0,n,e,3)))break r;if(t[i+4>>2]=t[A+12>>2],n=t[A+8>>2],h=C6(i),h)break e;h=o[n|0]?-32:0;break e}h=-32}return X=A+16|0,h}function n4(i){var n=0,e=0,r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0,Q=0;for(e=t[i+60>>2],I=t[i+56>>2],S=t[i+52>>2],w=t[i+48>>2],n=t[i+44>>2],r=t[i+40>>2],D=t[i+36>>2],g=t[i+32>>2],A=t[i+28>>2],_=t[i+24>>2],s=t[i+20>>2],h=t[i+16>>2],a=t[i+12>>2],u=t[i+8>>2],B=t[i+4>>2],v=t[i>>2];q=t0(s+B|0,7)^D,M=t0(q+s|0,9)^S,h=t0(v+w|0,7)^h,Y=t0(h+v|0,9)^g,N=t0(Y+h|0,13)^w,a=t0(n+e|0,7)^a,A=t0(a+e|0,9)^A,g=t0(A+a|0,13)^n,e=t0(A+g|0,18)^e,n=t0(r+_|0,7)^I,w=N^t0(e+n|0,7),S=M^t0(w+e|0,9),I=t0(w+S|0,13)^n,e=t0(S+I|0,18)^e,u=t0(n+r|0,9)^u,_=t0(u+n|0,13)^_,r=t0(_+u|0,18)^r,n=t0(r+q|0,7)^g,g=t0(n+r|0,9)^Y,D=t0(n+g|0,13)^q,r=t0(g+D|0,18)^r,B=t0(q+M|0,13)^B,s=t0(B+M|0,18)^s,_=t0(s+h|0,7)^_,A=t0(_+s|0,9)^A,h=t0(A+_|0,13)^h,s=t0(h+A|0,18)^s,v=t0(Y+N|0,18)^v,B=t0(v+a|0,7)^B,u=t0(B+v|0,9)^u,a=t0(u+B|0,13)^a,v=t0(a+u|0,18)^v,q=Q>>>0<6,Q=Q+2|0,!!q;);t[i>>2]=t[i>>2]+v,t[i+4>>2]=t[i+4>>2]+B,t[i+8>>2]=t[i+8>>2]+u,t[i+12>>2]=t[i+12>>2]+a,t[i+16>>2]=t[i+16>>2]+h,t[i+20>>2]=t[i+20>>2]+s,t[i+24>>2]=t[i+24>>2]+_,t[i+28>>2]=t[i+28>>2]+A,t[i+32>>2]=t[i+32>>2]+g,t[i+36>>2]=t[i+36>>2]+D,t[i+40>>2]=t[i+40>>2]+r,t[i+44>>2]=t[i+44>>2]+n,t[i+48>>2]=t[i+48>>2]+w,t[i+52>>2]=t[i+52>>2]+S,t[i+56>>2]=t[i+56>>2]+I,t[i+60>>2]=t[i+60>>2]+e}function A4(i,n,e,r){var A=0,_=0;A=X-320|0,X=A,_=-1;e:{if(!M6(e)||qt(e)||Br(A,e)||!k6(A)||(f[i|0]=o[n|0],f[i+1|0]=o[n+1|0],f[i+2|0]=o[n+2|0],f[i+3|0]=o[n+3|0],f[i+4|0]=o[n+4|0],f[i+5|0]=o[n+5|0],f[i+6|0]=o[n+6|0],f[i+7|0]=o[n+7|0],f[i+8|0]=o[n+8|0],f[i+9|0]=o[n+9|0],f[i+10|0]=o[n+10|0],f[i+11|0]=o[n+11|0],f[i+12|0]=o[n+12|0],f[i+13|0]=o[n+13|0],f[i+14|0]=o[n+14|0],f[i+15|0]=o[n+15|0],f[i+16|0]=o[n+16|0],f[i+17|0]=o[n+17|0],f[i+18|0]=o[n+18|0],f[i+19|0]=o[n+19|0],f[i+20|0]=o[n+20|0],f[i+21|0]=o[n+21|0],f[i+22|0]=o[n+22|0],f[i+23|0]=o[n+23|0],f[i+24|0]=o[n+24|0],f[i+25|0]=o[n+25|0],f[i+26|0]=o[n+26|0],f[i+27|0]=o[n+27|0],f[i+28|0]=o[n+28|0],f[i+29|0]=o[n+29|0],f[i+30|0]=o[n+30|0],e=o[n+31|0],r&&(f[i|0]=o[i|0]&248,e=e|64),f[i+31|0]=e&127,e=A+160|0,Pi(e,i,A),be(i,e),(o[i+31|0]&127|(o[i+30|0]|(o[i+29|0]|(o[i+28|0]|(o[i+27|0]|(o[i+26|0]|(o[i+25|0]|(o[i+24|0]|(o[i+23|0]|(o[i+22|0]|(o[i+21|0]|(o[i+20|0]|(o[i+19|0]|(o[i+18|0]|(o[i+17|0]|(o[i+16|0]|(o[i+15|0]|(o[i+14|0]|(o[i+13|0]|(o[i+12|0]|(o[i+11|0]|(o[i+10|0]|(o[i+9|0]|(o[i+8|0]|(o[i+7|0]|(o[i+6|0]|(o[i+5|0]|(o[i+4|0]|(o[i+3|0]|(o[i+2|0]|(o[i+1|0]|o[i|0]^1)))))))))))))))))))))))))))))))-1&256))break e;_=j1(n,32)?-1:0}return X=A+320|0,_}function i4(i,n,e,r,A){var _=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0;B=X-48|0,X=B,A&&q1(A,102);e:{if(o[r|0]!=36|o[r+1|0]!=55|o[r+2|0]!=36||(v=vr(o[r+3|0]),!v)||(s=Tn(B+12|0,r+4|0),!s)||(u=Tn(B+8|0,s),!u))break e;for(h=ee(u)+1|0;;){r:{if(s=0,!h)break r;if(h=h-1|0,s=u+h|0,o[s|0]!=36)continue}break}a=s-u|0;r:{if(s)break r;a=ee(u)}if(s=a,h=s+(u-r|0)|0,a=h+45|0,a>>>0>102|s>>>0>a>>>0||(a=i,g=n,w=e,v=v-1024|0,i=v&31,(v&63)>>>0>=32?(n=1<<i,e=0):(e=1<<i,n=e-1&1>>>32-i),Ui(a,g,w,u,s,e,n,t[B+12>>2],t[B+8>>2],B+16|0,32)))break e;for(h&&_2(A,r,h),i=A+h|0,f[i|0]=36,e=(h^-1)+102|0,_=i+1|0,i=0;;){r:{if(n=_,r=i,r>>>0>31){s=_;break r}h=r+1|0,i=31-r|0,a=i>>>0>=2?2:i,i=h+a|0,s=0,u=0,v=B+16|0,_=o[v+r|0];t:{if(!a||(_=o[h+v|0]<<8|_,r=r+2|0,(r|0)==(i|0)))break t;u=1,_=o[r+v|0]<<16|_}if(!e||(f[n|0]=o[(_&63)+1024|0],(e|0)==1))break r;f[n+1|0]=o[(_>>>6&63)+1024|0],a=n+e|0,r=n+2|0;t:{if((i|0)==(h|0))break t;if((e|0)==2)break r;if(f[n+2|0]=o[(_>>>12&63)+1024|0],r=n+3|0,!u)break t;if((e|0)==3)break r;f[n+3|0]=o[(_>>>18|0)+1024|0],r=n+4|0}if(_=r,e=a-_|0,_)continue}break}if(N0(B+16|0,32),_=0,!s|A+102>>>0<=s>>>0)break e;f[s|0]=0,_=A}return X=B+48|0,_}function J2(i,n){var e=0,r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0,M=0,Y=0,N=0;e=t[n+40>>2],A=t[n+4>>2],_=t[n+44>>2],s=t[n+8>>2],h=t[n+48>>2],a=t[n+12>>2],u=t[n+52>>2],B=t[n+16>>2],v=t[n+56>>2],g=t[n+20>>2],w=t[n+60>>2],q=t[n+24>>2],r=n- -64|0,S=t[r>>2],I=t[n+28>>2],D=t[n+68>>2],M=t[n+32>>2],Y=t[n+72>>2],N=t[n>>2],t[i+36>>2]=t[n+36>>2]+t[n+76>>2],t[i+32>>2]=M+Y,t[i+28>>2]=I+D,t[i+24>>2]=q+S,t[i+20>>2]=g+w,t[i+16>>2]=B+v,t[i+12>>2]=a+u,t[i+8>>2]=s+h,t[i+4>>2]=A+_,t[i>>2]=e+N,e=t[n+40>>2],A=t[n+4>>2],_=t[n+44>>2],s=t[n+8>>2],h=t[n+48>>2],a=t[n+12>>2],u=t[n+52>>2],B=t[n+16>>2],v=t[n+56>>2],g=t[n+20>>2],w=t[n+60>>2],q=t[n+24>>2],r=t[r>>2],S=t[n+28>>2],I=t[n+68>>2],D=t[n+32>>2],M=t[n+72>>2],Y=t[n>>2],t[i+76>>2]=t[n+76>>2]-t[n+36>>2],t[i+72>>2]=M-D,t[i+68>>2]=I-S,t[i- -64>>2]=r-q,t[i+60>>2]=w-g,t[i+56>>2]=v-B,t[i+52>>2]=u-a,t[i+48>>2]=h-s,t[i+44>>2]=_-A,t[i+40>>2]=e-Y,e=t[n+84>>2],t[i+80>>2]=t[n+80>>2],t[i+84>>2]=e,e=t[n+92>>2],t[i+88>>2]=t[n+88>>2],t[i+92>>2]=e,e=t[n+100>>2],t[i+96>>2]=t[n+96>>2],t[i+100>>2]=e,e=t[n+108>>2],t[i+104>>2]=t[n+104>>2],t[i+108>>2]=e,e=t[n+116>>2],t[i+112>>2]=t[n+112>>2],t[i+116>>2]=e,A0(i+120|0,n+120|0,1680)}function x6(i,n){var e=0,r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0,S=0,I=0,D=0;if(e=t[i+56>>2],r=t[i+60>>2],e|r){_=i- -64|0,f[_+e|0]=1,v=e+1|0,r=v?r:r+1|0;e:{if(!r&v>>>0>15|r||(r=15-e|0,!r))break e;k2((i+e|0)+65|0,0,r)}f[i+80|0]=1,d6(i,_,16,0)}v=t[i+52>>2],u=t[i+48>>2],_=t[i+44>>2],e=t[i+24>>2],s=t[i+28>>2]+(e>>>26|0)|0,A=t[i+32>>2]+(s>>>26|0)|0,g=t[i+36>>2]+(A>>>26|0)|0,h=t[i+20>>2]+i2(g>>>26|0,5)|0,a=h&67108863,r=a+5|0,q=A&67108863,B=s&67108863,e=(e&67108863)+(h>>>26|0)|0,h=e+(r>>>26|0)|0,S=B+(h>>>26|0)|0,I=q+(S>>>26|0)|0,D=(g&67108863)+(I>>>26|0)|0,A=D-67108864|0,s=A>>31,w=h,h=(A>>>31|0)-1|0,A=h&67108863,e=e&s|w&A,a=e<<26|(r&A|s&a),r=a+t[i+40>>2]|0,f[n|0]=r,f[n+1|0]=r>>>8,f[n+2|0]=r>>>16,f[n+3|0]=r>>>24,a=r>>>0<a>>>0,r=0,B=s&B|A&S,e=B<<20|e>>>6,w=e,e=e+_|0,r=w>>>0>e>>>0?1:r,_=e,e=e+a|0,r=_>>>0>e>>>0?r+1|0:r,f[n+4|0]=e,f[n+5|0]=e>>>8,f[n+6|0]=e>>>16,f[n+7|0]=e>>>24,e=0,A=s&q|A&I,_=A<<14|B>>>12,u=_+u|0,_=_>>>0>u>>>0?1:e,e=u,u=r,e=e+r|0,r=_,r=e>>>0<u>>>0?r+1|0:r,f[n+8|0]=e,f[n+9|0]=e>>>8,f[n+10|0]=e>>>16,f[n+11|0]=e>>>24,e=(h&D|s&g)<<8|A>>>18,e=e+v|0,r=e+r|0,f[n+12|0]=r,f[n+13|0]=r>>>8,f[n+14|0]=r>>>16,f[n+15|0]=r>>>24,N0(i,88)}function _4(i,n,e){var r=0,A=0;return r=X-160|0,X=r,f[i|0]=o[n|0],f[i+1|0]=o[n+1|0],f[i+2|0]=o[n+2|0],f[i+3|0]=o[n+3|0],f[i+4|0]=o[n+4|0],f[i+5|0]=o[n+5|0],f[i+6|0]=o[n+6|0],f[i+7|0]=o[n+7|0],f[i+8|0]=o[n+8|0],f[i+9|0]=o[n+9|0],f[i+10|0]=o[n+10|0],f[i+11|0]=o[n+11|0],f[i+12|0]=o[n+12|0],f[i+13|0]=o[n+13|0],f[i+14|0]=o[n+14|0],f[i+15|0]=o[n+15|0],f[i+16|0]=o[n+16|0],f[i+17|0]=o[n+17|0],f[i+18|0]=o[n+18|0],f[i+19|0]=o[n+19|0],f[i+20|0]=o[n+20|0],f[i+21|0]=o[n+21|0],f[i+22|0]=o[n+22|0],f[i+23|0]=o[n+23|0],f[i+24|0]=o[n+24|0],f[i+25|0]=o[n+25|0],f[i+26|0]=o[n+26|0],f[i+27|0]=o[n+27|0],f[i+28|0]=o[n+28|0],f[i+29|0]=o[n+29|0],f[i+30|0]=o[n+30|0],A=o[n+31|0],e&&(f[i|0]=o[i|0]&248,A=A|64),f[i+31|0]=A&127,Qr(r,i),be(i,r),e=-1,(o[i+31|0]&127|(o[i+30|0]|(o[i+29|0]|(o[i+28|0]|(o[i+27|0]|(o[i+26|0]|(o[i+25|0]|(o[i+24|0]|(o[i+23|0]|(o[i+22|0]|(o[i+21|0]|(o[i+20|0]|(o[i+19|0]|(o[i+18|0]|(o[i+17|0]|(o[i+16|0]|(o[i+15|0]|(o[i+14|0]|(o[i+13|0]|(o[i+12|0]|(o[i+11|0]|(o[i+10|0]|(o[i+9|0]|(o[i+8|0]|(o[i+7|0]|(o[i+6|0]|(o[i+5|0]|(o[i+4|0]|(o[i+3|0]|(o[i+2|0]|(o[i+1|0]|o[i|0]^1)))))))))))))))))))))))))))))))-1&256||(e=j1(n,32)?-1:0),X=r+160|0,e}function b1(i,n,e){i=i|0,n=n|0,e=e|0;var r=0,A=0;return r=X-16|0,X=r,f[r+15|0]=0,A=-1,_1[t[9954]](i,n,e)|0||(f[r+15|0]=o[i|0]|o[r+15|0],f[r+15|0]=o[i+1|0]|o[r+15|0],f[r+15|0]=o[i+2|0]|o[r+15|0],f[r+15|0]=o[i+3|0]|o[r+15|0],f[r+15|0]=o[i+4|0]|o[r+15|0],f[r+15|0]=o[i+5|0]|o[r+15|0],f[r+15|0]=o[i+6|0]|o[r+15|0],f[r+15|0]=o[i+7|0]|o[r+15|0],f[r+15|0]=o[i+8|0]|o[r+15|0],f[r+15|0]=o[i+9|0]|o[r+15|0],f[r+15|0]=o[i+10|0]|o[r+15|0],f[r+15|0]=o[i+11|0]|o[r+15|0],f[r+15|0]=o[i+12|0]|o[r+15|0],f[r+15|0]=o[i+13|0]|o[r+15|0],f[r+15|0]=o[i+14|0]|o[r+15|0],f[r+15|0]=o[i+15|0]|o[r+15|0],f[r+15|0]=o[i+16|0]|o[r+15|0],f[r+15|0]=o[i+17|0]|o[r+15|0],f[r+15|0]=o[i+18|0]|o[r+15|0],f[r+15|0]=o[i+19|0]|o[r+15|0],f[r+15|0]=o[i+20|0]|o[r+15|0],f[r+15|0]=o[i+21|0]|o[r+15|0],f[r+15|0]=o[i+22|0]|o[r+15|0],f[r+15|0]=o[i+23|0]|o[r+15|0],f[r+15|0]=o[i+24|0]|o[r+15|0],f[r+15|0]=o[i+25|0]|o[r+15|0],f[r+15|0]=o[i+26|0]|o[r+15|0],f[r+15|0]=o[i+27|0]|o[r+15|0],f[r+15|0]=o[i+28|0]|o[r+15|0],f[r+15|0]=o[i+29|0]|o[r+15|0],f[r+15|0]=o[i+30|0]|o[r+15|0],f[r+15|0]=o[i+31|0]|o[r+15|0],A=(o[r+15|0]<<23)-8388608>>31),X=r+16|0,A|0}function o4(i,n,e,r,A){var _=0,s=0,h=0,a=0,u=0,B=0,v=0;e:{r:{if((r|0)==1|r>>>0>1){t[10172]=22;break r}r=X-128|0,X=r,t[r+64>>2]=0,t[r+56>>2]=0,t[r+60>>2]=0,t[r+48>>2]=0,t[r+52>>2]=0,t[r+40>>2]=0,t[r+44>>2]=0,t[r+32>>2]=0,t[r+36>>2]=0,t[r+24>>2]=0,t[r+28>>2]=0,t[r+16>>2]=0,t[r+20>>2]=0,_=ee(i),t[r+28>>2]=_,t[r+44>>2]=_,t[r+12>>2]=_,s=U1(_),t[r+40>>2]=s,h=U1(_),t[r+24>>2]=h,a=U1(_),t[r+8>>2]=a;t:{n:{if(!a|(!s|!h)||(_=U1(_),!_))break n;if(i=t4(r+8|0,i,A),i){l1(t[r+40>>2]),l1(t[r+24>>2]),l1(t[r+8>>2]),l1(_);break t}a=t[r+28>>2],u=t[r+24>>2],i=t[r+60>>2],B=t[r+52>>2],v=t[r+48>>2],s=t[r+12>>2],q1(_,s),h=U1(s);A:{if(!h){i=-22;break A}t[r+92>>2]=0,t[r+96>>2]=0,t[r+88>>2]=a,t[r+84>>2]=u,t[r+80>>2]=e,t[r+76>>2]=n,t[r+72>>2]=s,t[r+68>>2]=h,t[r+100>>2]=0,t[r+104>>2]=0,t[r+124>>2]=0,t[r+120>>2]=i,t[r+116>>2]=i,t[r+112>>2]=B,t[r+108>>2]=v,i=kn(r+68|0,A),i|!s||_2(_,h,s),N0(h,s),l1(h)}l1(t[r+40>>2]),l1(t[r+24>>2]),i||(i=kr(_,t[r+8>>2],t[r+12>>2])?-35:0),l1(_),l1(t[r+8>>2]);break t}l1(s),l1(h),l1(a),i=-22}if(X=r+128|0,n=i,!i)break e;if((i|0)!=-35)break r;t[10172]=28}n=-1}return n}function cr(i,n){i=i|0,n=n|0;var e=0;return e=X-16|0,t[e+12>>2]=i,t[e+8>>2]=n,z2[e+6>>1]=0,z2[e+6>>1]=F2[e+6>>1]|o[t[e+12>>2]]^o[t[e+8>>2]],z2[e+6>>1]=F2[e+6>>1]|o[t[e+12>>2]+1|0]^o[t[e+8>>2]+1|0],z2[e+6>>1]=F2[e+6>>1]|o[t[e+12>>2]+2|0]^o[t[e+8>>2]+2|0],z2[e+6>>1]=F2[e+6>>1]|o[t[e+12>>2]+3|0]^o[t[e+8>>2]+3|0],z2[e+6>>1]=F2[e+6>>1]|o[t[e+12>>2]+4|0]^o[t[e+8>>2]+4|0],z2[e+6>>1]=F2[e+6>>1]|o[t[e+12>>2]+5|0]^o[t[e+8>>2]+5|0],z2[e+6>>1]=F2[e+6>>1]|o[t[e+12>>2]+6|0]^o[t[e+8>>2]+6|0],z2[e+6>>1]=F2[e+6>>1]|o[t[e+12>>2]+7|0]^o[t[e+8>>2]+7|0],z2[e+6>>1]=F2[e+6>>1]|o[t[e+12>>2]+8|0]^o[t[e+8>>2]+8|0],z2[e+6>>1]=F2[e+6>>1]|o[t[e+12>>2]+9|0]^o[t[e+8>>2]+9|0],z2[e+6>>1]=F2[e+6>>1]|o[t[e+12>>2]+10|0]^o[t[e+8>>2]+10|0],z2[e+6>>1]=F2[e+6>>1]|o[t[e+12>>2]+11|0]^o[t[e+8>>2]+11|0],z2[e+6>>1]=F2[e+6>>1]|o[t[e+12>>2]+12|0]^o[t[e+8>>2]+12|0],z2[e+6>>1]=F2[e+6>>1]|o[t[e+12>>2]+13|0]^o[t[e+8>>2]+13|0],z2[e+6>>1]=F2[e+6>>1]|o[t[e+12>>2]+14|0]^o[t[e+8>>2]+14|0],z2[e+6>>1]=F2[e+6>>1]|o[t[e+12>>2]+15|0]^o[t[e+8>>2]+15|0],z2[e+6>>1]=F2[e+6>>1],z2[e+6>>1]=F2[e+6>>1]-1,z2[e+6>>1]=F2[20608]>>>2^F2[e+6>>1]>>>15,F2[e+6>>1]-1|0}function V2(i,n){var e=0,r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0;_=t[n+32>>2],s=t[n+28>>2],h=t[n+24>>2],a=t[n+20>>2],u=t[n+16>>2],B=t[n+12>>2],e=t[n+4>>2],r=t[n>>2],A=t[n+36>>2],n=t[n+8>>2],r=i2((_+(s+(h+(a+(u+(B+((e+(r+(i2(A,19)+16777216>>>25|0)>>26)>>25)+n>>26)>>25)>>26)>>25)>>26)>>25)>>26)+A>>25,19)+r|0,f[i|0]=r,f[i+2|0]=r>>>16,f[i+1|0]=r>>>8,e=e+(r>>26)|0,f[i+5|0]=e>>>14,f[i+4|0]=e>>>6,f[i+3|0]=r>>>24&3|e<<2,n=n+(e>>25)|0,f[i+8|0]=n>>>13,f[i+7|0]=n>>>5,f[i+6|0]=n<<3|(e&29360128)>>>22,r=(n>>26)+B|0,f[i+11|0]=r>>>11,f[i+10|0]=r>>>3,f[i+9|0]=r<<5|(n&65011712)>>>21,e=(r>>25)+u|0,f[i+15|0]=e>>>18,f[i+14|0]=e>>>10,f[i+13|0]=e>>>2,n=(e>>26)+a|0,f[i+16|0]=n,f[i+12|0]=e<<6|(r&33030144)>>>19,f[i+18|0]=n>>>16,f[i+17|0]=n>>>8,e=(n>>25)+h|0,f[i+21|0]=e>>>15,f[i+20|0]=e>>>7,f[i+19|0]=n>>>24&1|e<<1,n=(e>>26)+s|0,f[i+24|0]=n>>>13,f[i+23|0]=n>>>5,f[i+22|0]=n<<3|(e&58720256)>>>23,e=(n>>25)+_|0,f[i+27|0]=e>>>12,f[i+26|0]=e>>>4,f[i+25|0]=e<<4|(n&31457280)>>>21,n=A+(e>>26)|0,f[i+30|0]=n>>>10,f[i+29|0]=n>>>2,f[i+31|0]=(n&33292288)>>>18,f[i+28|0]=n<<6|(e&66060288)>>>20}function Ye(i,n,e){i=i|0,n=n|0,e=e|0;var r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0,v=0;s=X-192|0,X=s,e>>>0>=129&&(Je(i),a1(i,n,e,0),N1(i,s),e=64,n=s),Je(i),k2(s- -64|0,54,128);e:{if(!e)break e;if(B=e&3,e>>>0>=4){for(_=e&252;h=s- -64|0,A=h+r|0,f[A|0]=o[A|0]^o[n+r|0],A=r|1,v=A+h|0,f[v|0]=o[v|0]^o[n+A|0],A=r|2,v=A+h|0,f[v|0]=o[v|0]^o[n+A|0],A=h,h=r|3,A=A+h|0,f[A|0]=o[A|0]^o[n+h|0],r=r+4|0,a=a+4|0,(_|0)!=(a|0););if(!B)break e}for(;a=(s- -64|0)+r|0,f[a|0]=o[a|0]^o[n+r|0],r=r+1|0,u=u+1|0,(B|0)!=(u|0););}r=s- -64|0,a1(i,r,128,0),B=i+208|0,Je(B),k2(r,92,128);e:{if(!e)break e;if(h=e&3,u=0,r=0,e>>>0>=4){for(e=e&252,a=0;i=s- -64|0,_=i+r|0,f[_|0]=o[_|0]^o[n+r|0],_=r|1,A=_+i|0,f[A|0]=o[A|0]^o[n+_|0],_=r|2,A=_+i|0,f[A|0]=o[A|0]^o[n+_|0],A=i,i=r|3,_=A+i|0,f[_|0]=o[_|0]^o[i+n|0],r=r+4|0,a=a+4|0,(e|0)!=(a|0););if(!h)break e}for(;i=(s- -64|0)+r|0,f[i|0]=o[i|0]^o[n+r|0],r=r+1|0,u=u+1|0,(h|0)!=(u|0););}return i=s- -64|0,a1(B,i,128,0),N0(i,128),N0(s,64),X=s+192|0,0}function i3(i,n){i=i|0,n=n|0;var e=0,r=0,A=0,_=0,s=0,h=0,a=0;return e=n,r=o[e+32|0]|o[e+33|0]<<8|(o[e+34|0]<<16|o[e+35|0]<<24),A=o[e+36|0]|o[e+37|0]<<8|(o[e+38|0]<<16|o[e+39|0]<<24),_=o[e+40|0]|o[e+41|0]<<8|(o[e+42|0]<<16|o[e+43|0]<<24),s=o[e+44|0]|o[e+45|0]<<8|(o[e+46|0]<<16|o[e+47|0]<<24),h=o[e+48|0]|o[e+49|0]<<8|(o[e+50|0]<<16|o[e+51|0]<<24),n=o[e+52|0]|o[e+53|0]<<8|(o[e+54|0]<<16|o[e+55|0]<<24),a=o[e+60|0]|o[e+61|0]<<8|(o[e+62|0]<<16|o[e+63|0]<<24),e=o[e+56|0]|o[e+57|0]<<8|(o[e+58|0]<<16|o[e+59|0]<<24),f[i+24|0]=e,f[i+25|0]=e>>>8,f[i+26|0]=e>>>16,f[i+27|0]=e>>>24,f[i+28|0]=a,f[i+29|0]=a>>>8,f[i+30|0]=a>>>16,f[i+31|0]=a>>>24,f[i+16|0]=h,f[i+17|0]=h>>>8,f[i+18|0]=h>>>16,f[i+19|0]=h>>>24,f[i+20|0]=n,f[i+21|0]=n>>>8,f[i+22|0]=n>>>16,f[i+23|0]=n>>>24,f[i+8|0]=_,f[i+9|0]=_>>>8,f[i+10|0]=_>>>16,f[i+11|0]=_>>>24,f[i+12|0]=s,f[i+13|0]=s>>>8,f[i+14|0]=s>>>16,f[i+15|0]=s>>>24,f[i|0]=r,f[i+1|0]=r>>>8,f[i+2|0]=r>>>16,f[i+3|0]=r>>>24,f[i+4|0]=A,f[i+5|0]=A>>>8,f[i+6|0]=A>>>16,f[i+7|0]=A>>>24,0}function _3(i,n){i=i|0,n=n|0;var e=0,r=0,A=0,_=0,s=0,h=0,a=0;return e=n,r=o[e|0]|o[e+1|0]<<8|(o[e+2|0]<<16|o[e+3|0]<<24),A=o[e+4|0]|o[e+5|0]<<8|(o[e+6|0]<<16|o[e+7|0]<<24),_=o[e+8|0]|o[e+9|0]<<8|(o[e+10|0]<<16|o[e+11|0]<<24),s=o[e+12|0]|o[e+13|0]<<8|(o[e+14|0]<<16|o[e+15|0]<<24),h=o[e+16|0]|o[e+17|0]<<8|(o[e+18|0]<<16|o[e+19|0]<<24),n=o[e+20|0]|o[e+21|0]<<8|(o[e+22|0]<<16|o[e+23|0]<<24),a=o[e+28|0]|o[e+29|0]<<8|(o[e+30|0]<<16|o[e+31|0]<<24),e=o[e+24|0]|o[e+25|0]<<8|(o[e+26|0]<<16|o[e+27|0]<<24),f[i+24|0]=e,f[i+25|0]=e>>>8,f[i+26|0]=e>>>16,f[i+27|0]=e>>>24,f[i+28|0]=a,f[i+29|0]=a>>>8,f[i+30|0]=a>>>16,f[i+31|0]=a>>>24,f[i+16|0]=h,f[i+17|0]=h>>>8,f[i+18|0]=h>>>16,f[i+19|0]=h>>>24,f[i+20|0]=n,f[i+21|0]=n>>>8,f[i+22|0]=n>>>16,f[i+23|0]=n>>>24,f[i+8|0]=_,f[i+9|0]=_>>>8,f[i+10|0]=_>>>16,f[i+11|0]=_>>>24,f[i+12|0]=s,f[i+13|0]=s>>>8,f[i+14|0]=s>>>16,f[i+15|0]=s>>>24,f[i|0]=r,f[i+1|0]=r>>>8,f[i+2|0]=r>>>16,f[i+3|0]=r>>>24,f[i+4|0]=A,f[i+5|0]=A>>>8,f[i+6|0]=A>>>16,f[i+7|0]=A>>>24,0}function o3(i,n,e,r,A,_,s){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0,_=_|0,s=s|0;var h=0;return h=X+-64|0,X=h,e|r&&(t[h+8>>2]=2036477234,t[h+12>>2]=1797285236,t[h>>2]=1634760805,t[h+4>>2]=857760878,t[h+16>>2]=o[s|0]|o[s+1|0]<<8|(o[s+2|0]<<16|o[s+3|0]<<24),t[h+20>>2]=o[s+4|0]|o[s+5|0]<<8|(o[s+6|0]<<16|o[s+7|0]<<24),t[h+24>>2]=o[s+8|0]|o[s+9|0]<<8|(o[s+10|0]<<16|o[s+11|0]<<24),t[h+28>>2]=o[s+12|0]|o[s+13|0]<<8|(o[s+14|0]<<16|o[s+15|0]<<24),t[h+32>>2]=o[s+16|0]|o[s+17|0]<<8|(o[s+18|0]<<16|o[s+19|0]<<24),t[h+36>>2]=o[s+20|0]|o[s+21|0]<<8|(o[s+22|0]<<16|o[s+23|0]<<24),t[h+40>>2]=o[s+24|0]|o[s+25|0]<<8|(o[s+26|0]<<16|o[s+27|0]<<24),s=o[s+28|0]|o[s+29|0]<<8|(o[s+30|0]<<16|o[s+31|0]<<24),t[h+48>>2]=_,t[h+44>>2]=s,t[h+52>>2]=o[A|0]|o[A+1|0]<<8|(o[A+2|0]<<16|o[A+3|0]<<24),t[h+56>>2]=o[A+4|0]|o[A+5|0]<<8|(o[A+6|0]<<16|o[A+7|0]<<24),t[h+60>>2]=o[A+8|0]|o[A+9|0]<<8|(o[A+10|0]<<16|o[A+11|0]<<24),vn(h,n,i,e,r),N0(h,64)),X=h- -64|0,0}function s3(i,n,e,r,A){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0;var _=0;return _=X+-64|0,X=_,n|e&&(t[_+8>>2]=2036477234,t[_+12>>2]=1797285236,t[_>>2]=1634760805,t[_+4>>2]=857760878,t[_+16>>2]=o[A|0]|o[A+1|0]<<8|(o[A+2|0]<<16|o[A+3|0]<<24),t[_+20>>2]=o[A+4|0]|o[A+5|0]<<8|(o[A+6|0]<<16|o[A+7|0]<<24),t[_+24>>2]=o[A+8|0]|o[A+9|0]<<8|(o[A+10|0]<<16|o[A+11|0]<<24),t[_+28>>2]=o[A+12|0]|o[A+13|0]<<8|(o[A+14|0]<<16|o[A+15|0]<<24),t[_+32>>2]=o[A+16|0]|o[A+17|0]<<8|(o[A+18|0]<<16|o[A+19|0]<<24),t[_+36>>2]=o[A+20|0]|o[A+21|0]<<8|(o[A+22|0]<<16|o[A+23|0]<<24),t[_+40>>2]=o[A+24|0]|o[A+25|0]<<8|(o[A+26|0]<<16|o[A+27|0]<<24),A=o[A+28|0]|o[A+29|0]<<8|(o[A+30|0]<<16|o[A+31|0]<<24),t[_+48>>2]=0,t[_+44>>2]=A,t[_+52>>2]=o[r|0]|o[r+1|0]<<8|(o[r+2|0]<<16|o[r+3|0]<<24),t[_+56>>2]=o[r+4|0]|o[r+5|0]<<8|(o[r+6|0]<<16|o[r+7|0]<<24),t[_+60>>2]=o[r+8|0]|o[r+9|0]<<8|(o[r+10|0]<<16|o[r+11|0]<<24),n&&k2(i,0,n),vn(_,i,i,n,e),N0(_,64)),X=_- -64|0,0}function h3(i,n,e,r,A){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0;var _=0,s=0,h=0;return s=X,_=s-192&-64,X=_,t[_+64>>2]=(o[A|0]|o[A+1|0]<<8|(o[A+2|0]<<16|o[A+3|0]<<24))&67108863,t[_+68>>2]=(o[A+3|0]|o[A+4|0]<<8|(o[A+5|0]<<16|o[A+6|0]<<24))>>>2&67108611,t[_+72>>2]=(o[A+6|0]|o[A+7|0]<<8|(o[A+8|0]<<16|o[A+9|0]<<24))>>>4&67092735,t[_+76>>2]=(o[A+9|0]|o[A+10|0]<<8|(o[A+11|0]<<16|o[A+12|0]<<24))>>>6&66076671,h=o[A+12|0]|o[A+13|0]<<8|(o[A+14|0]<<16|o[A+15|0]<<24),t[_+84>>2]=0,t[_+88>>2]=0,t[_+92>>2]=0,t[_+96>>2]=0,t[_+100>>2]=0,t[_+80>>2]=h>>>8&1048575,t[_+104>>2]=o[A+16|0]|o[A+17|0]<<8|(o[A+18|0]<<16|o[A+19|0]<<24),t[_+108>>2]=o[A+20|0]|o[A+21|0]<<8|(o[A+22|0]<<16|o[A+23|0]<<24),t[_+112>>2]=o[A+24|0]|o[A+25|0]<<8|(o[A+26|0]<<16|o[A+27|0]<<24),A=o[A+28|0]|o[A+29|0]<<8|(o[A+30|0]<<16|o[A+31|0]<<24),f[_+144|0]=0,t[_+120>>2]=0,t[_+124>>2]=0,t[_+116>>2]=A,A=_- -64|0,S6(A,n,e,r),n=_+48|0,x6(A,n),i=cr(i,n),X=s,i|0}function l3(i,n,e,r,A){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0;var _=0,s=0,h=0,a=0,u=0,B=0;return s=e,e=r,B=s|0,r=X,s=r,_=r-512&-64,X=_,r=-1,h=_- -64|0,a=_+32|0,$r(h,a)||(r=_+128|0,oe(r,0,0,24),G2(r,h,32,0),G2(r,A,32,0),u=_+96|0,he(r,u,24),r=Y4(i+32|0,n,B,e,u,A,a),n=t[_+92>>2],e=t[_+88>>2],f[i+24|0]=e,f[i+25|0]=e>>>8,f[i+26|0]=e>>>16,f[i+27|0]=e>>>24,f[i+28|0]=n,f[i+29|0]=n>>>8,f[i+30|0]=n>>>16,f[i+31|0]=n>>>24,n=t[_+84>>2],e=t[_+80>>2],f[i+16|0]=e,f[i+17|0]=e>>>8,f[i+18|0]=e>>>16,f[i+19|0]=e>>>24,f[i+20|0]=n,f[i+21|0]=n>>>8,f[i+22|0]=n>>>16,f[i+23|0]=n>>>24,n=t[_+76>>2],e=t[_+72>>2],f[i+8|0]=e,f[i+9|0]=e>>>8,f[i+10|0]=e>>>16,f[i+11|0]=e>>>24,f[i+12|0]=n,f[i+13|0]=n>>>8,f[i+14|0]=n>>>16,f[i+15|0]=n>>>24,n=t[_+68>>2],e=t[_+64>>2],f[i|0]=e,f[i+1|0]=e>>>8,f[i+2|0]=e>>>16,f[i+3|0]=e>>>24,f[i+4|0]=n,f[i+5|0]=n>>>8,f[i+6|0]=n>>>16,f[i+7|0]=n>>>24,N0(a,32),N0(h,32),N0(u,24)),X=s,r|0}function u3(i,n,e,r,A){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0;var _=0,s=0,h=0,a=0,u=0,B=0;return s=e,e=r,B=s|0,r=X,s=r,_=r-512&-64,X=_,r=-1,h=_- -64|0,a=_+32|0,$r(h,a)||(r=_+128|0,oe(r,0,0,24),G2(r,h,32,0),G2(r,A,32,0),u=_+96|0,he(r,u,24),r=X4(i+32|0,n,B,e,u,A,a),n=t[_+92>>2],e=t[_+88>>2],f[i+24|0]=e,f[i+25|0]=e>>>8,f[i+26|0]=e>>>16,f[i+27|0]=e>>>24,f[i+28|0]=n,f[i+29|0]=n>>>8,f[i+30|0]=n>>>16,f[i+31|0]=n>>>24,n=t[_+84>>2],e=t[_+80>>2],f[i+16|0]=e,f[i+17|0]=e>>>8,f[i+18|0]=e>>>16,f[i+19|0]=e>>>24,f[i+20|0]=n,f[i+21|0]=n>>>8,f[i+22|0]=n>>>16,f[i+23|0]=n>>>24,n=t[_+76>>2],e=t[_+72>>2],f[i+8|0]=e,f[i+9|0]=e>>>8,f[i+10|0]=e>>>16,f[i+11|0]=e>>>24,f[i+12|0]=n,f[i+13|0]=n>>>8,f[i+14|0]=n>>>16,f[i+15|0]=n>>>24,n=t[_+68>>2],e=t[_+64>>2],f[i|0]=e,f[i+1|0]=e>>>8,f[i+2|0]=e>>>16,f[i+3|0]=e>>>24,f[i+4|0]=n,f[i+5|0]=n>>>8,f[i+6|0]=n>>>16,f[i+7|0]=n>>>24,N0(a,32),N0(h,32),N0(u,24)),X=s,r|0}function y3(i,n,e,r,A,_,s,h){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0,_=_|0,s=s|0,h=h|0;var a=0;return a=X+-64|0,X=a,e|r&&(t[a+8>>2]=2036477234,t[a+12>>2]=1797285236,t[a>>2]=1634760805,t[a+4>>2]=857760878,t[a+16>>2]=o[h|0]|o[h+1|0]<<8|(o[h+2|0]<<16|o[h+3|0]<<24),t[a+20>>2]=o[h+4|0]|o[h+5|0]<<8|(o[h+6|0]<<16|o[h+7|0]<<24),t[a+24>>2]=o[h+8|0]|o[h+9|0]<<8|(o[h+10|0]<<16|o[h+11|0]<<24),t[a+28>>2]=o[h+12|0]|o[h+13|0]<<8|(o[h+14|0]<<16|o[h+15|0]<<24),t[a+32>>2]=o[h+16|0]|o[h+17|0]<<8|(o[h+18|0]<<16|o[h+19|0]<<24),t[a+36>>2]=o[h+20|0]|o[h+21|0]<<8|(o[h+22|0]<<16|o[h+23|0]<<24),t[a+40>>2]=o[h+24|0]|o[h+25|0]<<8|(o[h+26|0]<<16|o[h+27|0]<<24),h=o[h+28|0]|o[h+29|0]<<8|(o[h+30|0]<<16|o[h+31|0]<<24),t[a+48>>2]=_,t[a+52>>2]=s,t[a+44>>2]=h,t[a+56>>2]=o[A|0]|o[A+1|0]<<8|(o[A+2|0]<<16|o[A+3|0]<<24),t[a+60>>2]=o[A+4|0]|o[A+5|0]<<8|(o[A+6|0]<<16|o[A+7|0]<<24),vn(a,n,i,e,r),N0(a,64)),X=a- -64|0,0}function f3(i,n,e,r,A){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0;var _=0;return _=X+-64|0,X=_,n|e&&(t[_+8>>2]=2036477234,t[_+12>>2]=1797285236,t[_>>2]=1634760805,t[_+4>>2]=857760878,t[_+16>>2]=o[A|0]|o[A+1|0]<<8|(o[A+2|0]<<16|o[A+3|0]<<24),t[_+20>>2]=o[A+4|0]|o[A+5|0]<<8|(o[A+6|0]<<16|o[A+7|0]<<24),t[_+24>>2]=o[A+8|0]|o[A+9|0]<<8|(o[A+10|0]<<16|o[A+11|0]<<24),t[_+28>>2]=o[A+12|0]|o[A+13|0]<<8|(o[A+14|0]<<16|o[A+15|0]<<24),t[_+32>>2]=o[A+16|0]|o[A+17|0]<<8|(o[A+18|0]<<16|o[A+19|0]<<24),t[_+36>>2]=o[A+20|0]|o[A+21|0]<<8|(o[A+22|0]<<16|o[A+23|0]<<24),t[_+40>>2]=o[A+24|0]|o[A+25|0]<<8|(o[A+26|0]<<16|o[A+27|0]<<24),A=o[A+28|0]|o[A+29|0]<<8|(o[A+30|0]<<16|o[A+31|0]<<24),t[_+48>>2]=0,t[_+52>>2]=0,t[_+44>>2]=A,t[_+56>>2]=o[r|0]|o[r+1|0]<<8|(o[r+2|0]<<16|o[r+3|0]<<24),t[_+60>>2]=o[r+4|0]|o[r+5|0]<<8|(o[r+6|0]<<16|o[r+7|0]<<24),n&&k2(i,0,n),vn(_,i,i,n,e),N0(_,64)),X=_- -64|0,0}function a3(i,n,e,r,A){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0;var _=0,s=0,h=0;return s=X,_=s-128&-64,X=_,t[_>>2]=(o[A|0]|o[A+1|0]<<8|(o[A+2|0]<<16|o[A+3|0]<<24))&67108863,t[_+4>>2]=(o[A+3|0]|o[A+4|0]<<8|(o[A+5|0]<<16|o[A+6|0]<<24))>>>2&67108611,t[_+8>>2]=(o[A+6|0]|o[A+7|0]<<8|(o[A+8|0]<<16|o[A+9|0]<<24))>>>4&67092735,t[_+12>>2]=(o[A+9|0]|o[A+10|0]<<8|(o[A+11|0]<<16|o[A+12|0]<<24))>>>6&66076671,h=o[A+12|0]|o[A+13|0]<<8|(o[A+14|0]<<16|o[A+15|0]<<24),t[_+20>>2]=0,t[_+24>>2]=0,t[_+28>>2]=0,t[_+32>>2]=0,t[_+36>>2]=0,t[_+16>>2]=h>>>8&1048575,t[_+40>>2]=o[A+16|0]|o[A+17|0]<<8|(o[A+18|0]<<16|o[A+19|0]<<24),t[_+44>>2]=o[A+20|0]|o[A+21|0]<<8|(o[A+22|0]<<16|o[A+23|0]<<24),t[_+48>>2]=o[A+24|0]|o[A+25|0]<<8|(o[A+26|0]<<16|o[A+27|0]<<24),A=o[A+28|0]|o[A+29|0]<<8|(o[A+30|0]<<16|o[A+31|0]<<24),f[_+80|0]=0,t[_+56>>2]=0,t[_+60>>2]=0,t[_+52>>2]=A,S6(_,n,e,r),x6(_,i),X=s,0}function wt(i,n,e,r,A,_,s){var h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0;h=X-352|0,X=h,L1(h,_,s,0);e:{r:{if(!(!((!A&i-e>>>0<r>>>0|(A|0)!=0)&i>>>0>e>>>0)&(!A&e-i>>>0>=r>>>0|i>>>0>=e>>>0))){r&&_2(i,e,r),t[h+56>>2]=0,t[h+60>>2]=0,t[h+48>>2]=0,t[h+52>>2]=0,t[h+40>>2]=0,t[h+44>>2]=0,t[h+32>>2]=0,t[h+36>>2]=0,s=(A|0)!=0,e=s|!A&r>>>0>=32,a=e?32:r,B=e?0:A,s=s|!A&r>>>0>32,e=i;break r}if(t[h+56>>2]=0,t[h+60>>2]=0,t[h+48>>2]=0,t[h+52>>2]=0,t[h+40>>2]=0,t[h+44>>2]=0,t[h+32>>2]=0,t[h+36>>2]=0,u=(A|0)!=0,s=u|!A&r>>>0>=32,a=s?32:r,B=s?0:A,s=u|!A&r>>>0>32,r|A)break r;g=1;break e}a&&_2(h- -64|0,e,a),g=0}return v=h+32|0,u=B,w=a+32|0,u=w>>>0<32?u+1|0:u,q=u,u=_+16|0,In(v,v,w,q,u,h),re(h+96|0,v),!a|g||_2(i,h- -64|0,a),N0(h+32|0,64),s&&gr(i+a|0,e+a|0,r-a|0,A-(B+(r>>>0<a>>>0)|0)|0,u,1,0,h),N0(h,32),e=h+96|0,m2(e,i,r,A),te(e,n),N0(e,256),X=h+352|0,0}function mt(i,n,e,r,A,_,s){var h=0,a=0,u=0,B=0,v=0,g=0,w=0,q=0;h=X-352|0,X=h,Ee(h,_,s,0);e:{r:{if(!(!((!A&i-e>>>0<r>>>0|(A|0)!=0)&i>>>0>e>>>0)&(!A&e-i>>>0>=r>>>0|i>>>0>=e>>>0))){r&&_2(i,e,r),t[h+56>>2]=0,t[h+60>>2]=0,t[h+48>>2]=0,t[h+52>>2]=0,t[h+40>>2]=0,t[h+44>>2]=0,t[h+32>>2]=0,t[h+36>>2]=0,s=(A|0)!=0,e=s|!A&r>>>0>=32,a=e?32:r,B=e?0:A,s=s|!A&r>>>0>32,e=i;break r}if(t[h+56>>2]=0,t[h+60>>2]=0,t[h+48>>2]=0,t[h+52>>2]=0,t[h+40>>2]=0,t[h+44>>2]=0,t[h+32>>2]=0,t[h+36>>2]=0,u=(A|0)!=0,s=u|!A&r>>>0>=32,a=s?32:r,B=s?0:A,s=u|!A&r>>>0>32,r|A)break r;g=1;break e}a&&_2(h- -64|0,e,a),g=0}return v=h+32|0,u=B,w=a+32|0,u=w>>>0<32?u+1|0:u,q=u,u=_+16|0,En(v,v,w,q,u,h),re(h+96|0,v),!a|g||_2(i,h- -64|0,a),N0(h+32|0,64),s&&xt(i+a|0,e+a|0,r-a|0,A-(B+(r>>>0<a>>>0)|0)|0,u,1,0,h),N0(h,32),e=h+96|0,m2(e,i,r,A),te(e,n),N0(e,256),X=h+352|0,0}function B3(i,n){i=i|0,n=n|0;var e=0;return t[i>>2]=(o[n|0]|o[n+1|0]<<8|(o[n+2|0]<<16|o[n+3|0]<<24))&67108863,t[i+4>>2]=(o[n+3|0]|o[n+4|0]<<8|(o[n+5|0]<<16|o[n+6|0]<<24))>>>2&67108611,t[i+8>>2]=(o[n+6|0]|o[n+7|0]<<8|(o[n+8|0]<<16|o[n+9|0]<<24))>>>4&67092735,t[i+12>>2]=(o[n+9|0]|o[n+10|0]<<8|(o[n+11|0]<<16|o[n+12|0]<<24))>>>6&66076671,e=o[n+12|0]|o[n+13|0]<<8|(o[n+14|0]<<16|o[n+15|0]<<24),t[i+20>>2]=0,t[i+24>>2]=0,t[i+28>>2]=0,t[i+32>>2]=0,t[i+36>>2]=0,t[i+16>>2]=e>>>8&1048575,t[i+40>>2]=o[n+16|0]|o[n+17|0]<<8|(o[n+18|0]<<16|o[n+19|0]<<24),t[i+44>>2]=o[n+20|0]|o[n+21|0]<<8|(o[n+22|0]<<16|o[n+23|0]<<24),t[i+48>>2]=o[n+24|0]|o[n+25|0]<<8|(o[n+26|0]<<16|o[n+27|0]<<24),n=o[n+28|0]|o[n+29|0]<<8|(o[n+30|0]<<16|o[n+31|0]<<24),f[i+80|0]=0,t[i+56>>2]=0,t[i+60>>2]=0,t[i+52>>2]=n,0}function p3(i,n,e){i=i|0,n=n|0,e=e|0;var r=0,A=0;return r=X-320|0,X=r,A=-1,Or(r,e)||(f[i|0]=o[n|0],f[i+1|0]=o[n+1|0],f[i+2|0]=o[n+2|0],f[i+3|0]=o[n+3|0],f[i+4|0]=o[n+4|0],f[i+5|0]=o[n+5|0],f[i+6|0]=o[n+6|0],f[i+7|0]=o[n+7|0],f[i+8|0]=o[n+8|0],f[i+9|0]=o[n+9|0],f[i+10|0]=o[n+10|0],f[i+11|0]=o[n+11|0],f[i+12|0]=o[n+12|0],f[i+13|0]=o[n+13|0],f[i+14|0]=o[n+14|0],f[i+15|0]=o[n+15|0],f[i+16|0]=o[n+16|0],f[i+17|0]=o[n+17|0],f[i+18|0]=o[n+18|0],f[i+19|0]=o[n+19|0],f[i+20|0]=o[n+20|0],f[i+21|0]=o[n+21|0],f[i+22|0]=o[n+22|0],f[i+23|0]=o[n+23|0],f[i+24|0]=o[n+24|0],f[i+25|0]=o[n+25|0],f[i+26|0]=o[n+26|0],f[i+27|0]=o[n+27|0],f[i+28|0]=o[n+28|0],f[i+29|0]=o[n+29|0],f[i+30|0]=o[n+30|0],f[i+31|0]=o[n+31|0]&127,n=r+160|0,Pi(n,i,r),gt(i,n),A=j1(i,32)?-1:0),X=r+320|0,A|0}function s4(i,n,e,r,A){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0;var _=0;return _=X-480|0,X=_,Ye(_,A,32),le(_,n,e,r),er(_,_+416|0),n=t[_+444>>2],e=t[_+440>>2],f[i+24|0]=e,f[i+25|0]=e>>>8,f[i+26|0]=e>>>16,f[i+27|0]=e>>>24,f[i+28|0]=n,f[i+29|0]=n>>>8,f[i+30|0]=n>>>16,f[i+31|0]=n>>>24,n=t[_+436>>2],e=t[_+432>>2],f[i+16|0]=e,f[i+17|0]=e>>>8,f[i+18|0]=e>>>16,f[i+19|0]=e>>>24,f[i+20|0]=n,f[i+21|0]=n>>>8,f[i+22|0]=n>>>16,f[i+23|0]=n>>>24,n=t[_+428>>2],e=t[_+424>>2],f[i+8|0]=e,f[i+9|0]=e>>>8,f[i+10|0]=e>>>16,f[i+11|0]=e>>>24,f[i+12|0]=n,f[i+13|0]=n>>>8,f[i+14|0]=n>>>16,f[i+15|0]=n>>>24,n=t[_+420>>2],e=t[_+416>>2],f[i|0]=e,f[i+1|0]=e>>>8,f[i+2|0]=e>>>16,f[i+3|0]=e>>>24,f[i+4|0]=n,f[i+5|0]=n>>>8,f[i+6|0]=n>>>16,f[i+7|0]=n>>>24,X=_+480|0,0}function c3(i,n){i=i|0,n=n|0;var e=0;return e=X-160|0,X=e,f[i|0]=o[n|0],f[i+1|0]=o[n+1|0],f[i+2|0]=o[n+2|0],f[i+3|0]=o[n+3|0],f[i+4|0]=o[n+4|0],f[i+5|0]=o[n+5|0],f[i+6|0]=o[n+6|0],f[i+7|0]=o[n+7|0],f[i+8|0]=o[n+8|0],f[i+9|0]=o[n+9|0],f[i+10|0]=o[n+10|0],f[i+11|0]=o[n+11|0],f[i+12|0]=o[n+12|0],f[i+13|0]=o[n+13|0],f[i+14|0]=o[n+14|0],f[i+15|0]=o[n+15|0],f[i+16|0]=o[n+16|0],f[i+17|0]=o[n+17|0],f[i+18|0]=o[n+18|0],f[i+19|0]=o[n+19|0],f[i+20|0]=o[n+20|0],f[i+21|0]=o[n+21|0],f[i+22|0]=o[n+22|0],f[i+23|0]=o[n+23|0],f[i+24|0]=o[n+24|0],f[i+25|0]=o[n+25|0],f[i+26|0]=o[n+26|0],f[i+27|0]=o[n+27|0],f[i+28|0]=o[n+28|0],f[i+29|0]=o[n+29|0],f[i+30|0]=o[n+30|0],f[i+31|0]=o[n+31|0]&127,Qr(e,i),gt(i,e),i=j1(i,32),X=e+160|0,(i?-1:0)|0}function k3(i,n){i=i|0,n=n|0;var e=0,r=0;return r=X+-64|0,X=r,Gr(r,n,32,0),f[r|0]=o[r|0]&248,f[r+31|0]=o[r+31|0]&63|64,n=t[r+20>>2],e=t[r+16>>2],f[i+16|0]=e,f[i+17|0]=e>>>8,f[i+18|0]=e>>>16,f[i+19|0]=e>>>24,f[i+20|0]=n,f[i+21|0]=n>>>8,f[i+22|0]=n>>>16,f[i+23|0]=n>>>24,n=t[r+12>>2],e=t[r+8>>2],f[i+8|0]=e,f[i+9|0]=e>>>8,f[i+10|0]=e>>>16,f[i+11|0]=e>>>24,f[i+12|0]=n,f[i+13|0]=n>>>8,f[i+14|0]=n>>>16,f[i+15|0]=n>>>24,n=t[r+4>>2],e=t[r>>2],f[i|0]=e,f[i+1|0]=e>>>8,f[i+2|0]=e>>>16,f[i+3|0]=e>>>24,f[i+4|0]=n,f[i+5|0]=n>>>8,f[i+6|0]=n>>>16,f[i+7|0]=n>>>24,n=t[r+28>>2],e=t[r+24>>2],f[i+24|0]=e,f[i+25|0]=e>>>8,f[i+26|0]=e>>>16,f[i+27|0]=e>>>24,f[i+28|0]=n,f[i+29|0]=n>>>8,f[i+30|0]=n>>>16,f[i+31|0]=n>>>24,N0(r,64),X=r- -64|0,0}function D6(i,n,e){i=i|0,n=n|0,e=e|0;var r=0,A=0;return A=X+-64|0,X=A,Gr(A,e,32,0),e=t[A+28>>2],r=t[A+24>>2],f[n+24|0]=r,f[n+25|0]=r>>>8,f[n+26|0]=r>>>16,f[n+27|0]=r>>>24,f[n+28|0]=e,f[n+29|0]=e>>>8,f[n+30|0]=e>>>16,f[n+31|0]=e>>>24,e=t[A+20>>2],r=t[A+16>>2],f[n+16|0]=r,f[n+17|0]=r>>>8,f[n+18|0]=r>>>16,f[n+19|0]=r>>>24,f[n+20|0]=e,f[n+21|0]=e>>>8,f[n+22|0]=e>>>16,f[n+23|0]=e>>>24,e=t[A+12>>2],r=t[A+8>>2],f[n+8|0]=r,f[n+9|0]=r>>>8,f[n+10|0]=r>>>16,f[n+11|0]=r>>>24,f[n+12|0]=e,f[n+13|0]=e>>>8,f[n+14|0]=e>>>16,f[n+15|0]=e>>>24,e=t[A+4>>2],r=t[A>>2],f[n|0]=r,f[n+1|0]=r>>>8,f[n+2|0]=r>>>16,f[n+3|0]=r>>>24,f[n+4|0]=e,f[n+5|0]=e>>>8,f[n+6|0]=e>>>16,f[n+7|0]=e>>>24,N0(A,64),i=Dt(i,n),X=A- -64|0,i|0}function v3(i,n,e,r,A,_,s,h,a){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0,_=_|0,s=s|0,h=h|0,a=a|0;var u=0,B=0,v=0;if(u=X,v=u,u=u-192&-32,X=u,Hi(a,h,u- -64|0),h=0,s>>>0>63)for(a=64;Ii(_+h|0,u- -64|0),h=a,a=a- -64|0,a>>>0<=s>>>0;);if(a=h|32,a>>>0<=s>>>0)for(;jn(_+h|0,u- -64|0),h=a,a=a+32|0,a>>>0<=s>>>0;);if(a=s&31,a&&(B=32-a|0,B&&k2(a|u+32,0,B),a&&_2(u+32|0,_+h|0,a),jn(u+32|0,u- -64|0)),_=32,h=0,A>>>0>=32)for(;Ei(i+h|0,r+h|0,u- -64|0),h=_,_=_+32|0,_>>>0<=A>>>0;);_=A&31;e:{if(!_||(a=32-_|0,a&&k2(_|u+32,0,a),a=!_,a||_2(u+32|0,r+h|0,_),Ei(u,u+32|0,u- -64|0),a))break e;_2(i+h|0,u,_)}return Di(n,e,s,A,u- -64|0),X=v,0}function j3(i,n){i=i|0,n=n|0;var e=0,r=0;return r=X+-64|0,X=r,er(i,r),e=t[r+28>>2],i=t[r+24>>2],f[n+24|0]=i,f[n+25|0]=i>>>8,f[n+26|0]=i>>>16,f[n+27|0]=i>>>24,f[n+28|0]=e,f[n+29|0]=e>>>8,f[n+30|0]=e>>>16,f[n+31|0]=e>>>24,e=t[r+20>>2],i=t[r+16>>2],f[n+16|0]=i,f[n+17|0]=i>>>8,f[n+18|0]=i>>>16,f[n+19|0]=i>>>24,f[n+20|0]=e,f[n+21|0]=e>>>8,f[n+22|0]=e>>>16,f[n+23|0]=e>>>24,e=t[r+12>>2],i=t[r+8>>2],f[n+8|0]=i,f[n+9|0]=i>>>8,f[n+10|0]=i>>>16,f[n+11|0]=i>>>24,f[n+12|0]=e,f[n+13|0]=e>>>8,f[n+14|0]=e>>>16,f[n+15|0]=e>>>24,e=t[r+4>>2],i=t[r>>2],f[n|0]=i,f[n+1|0]=i>>>8,f[n+2|0]=i>>>16,f[n+3|0]=i>>>24,f[n+4|0]=e,f[n+5|0]=e>>>8,f[n+6|0]=e>>>16,f[n+7|0]=e>>>24,X=r- -64|0,0}function h4(i,n){var e=0,r=0,A=0,_=0,s=0,h=0;if(n>>>0>4294967168)return 48;e:{if(n>>>0>=4294967168){t[10172]=48,e=0;break e}if(_=n>>>0<11?16:n+11&-8,n=U1(_+76|0),e=0,!n)break e;e=n-8|0;r:{if(!(n&63)){n=e;break r}if(s=n-4|0,h=t[s>>2],n=(n+63&-64)-8|0,n=(n-e>>>0<=15?64:0)+n|0,r=n-e|0,A=(h&-8)-r|0,!(h&3)){e=t[e>>2],t[n+4>>2]=A,t[n>>2]=e+r;break r}t[n+4>>2]=A|t[n+4>>2]&1|2,A=n+A|0,t[A+4>>2]=t[A+4>>2]|1,t[s>>2]=r|t[s>>2]&1|2,A=e+r|0,t[A+4>>2]=t[A+4>>2]|1,Xi(e,r)}e=t[n+4>>2];r:{if(!(e&3)||(r=e&-8,r>>>0<=_+16>>>0))break r;t[n+4>>2]=_|e&1|2,e=n+_|0,_=r-_|0,t[e+4>>2]=_|3,r=n+r|0,t[r+4>>2]=t[r+4>>2]|1,Xi(e,_)}e=n+8|0}return e?(t[i>>2]=e,0):48}function l4(i,n,e,r,A,_,s,h,a,u,B){if(n&&k2(i,0,n),(e|0)==1|e>>>0>1)return t[10172]=22,-1;e:{if(!e&n>>>0<=15)break e;if(!(!(_|a)&u>>>0<2147483649))return t[10172]=22,-1;if(!((!a&h>>>0>=3|(a|0)!=0)&u>>>0>8191)|(i|0)==(r|0))break e;if((B|0)==1){e=X+-64|0,X=e,i&&q1(i,n),a=u>>>10|0,_=U1(n);r:{if(!_){r=-22;break r}t[e+28>>2]=0,t[e+32>>2]=0,t[e+24>>2]=16,t[e+20>>2]=s,t[e+16>>2]=A,t[e+12>>2]=r,t[e+8>>2]=n,t[e+4>>2]=_,t[e+36>>2]=0,t[e+40>>2]=0,t[e+60>>2]=0,t[e+56>>2]=1,t[e+52>>2]=1,t[e+48>>2]=a,t[e+44>>2]=h,r=kn(e+4|0,1),!n|(r|!i)||_2(i,_,n),N0(_,n),l1(_)}return X=e- -64|0,r?-1:0}return t[10172]=28,-1}return t[10172]=28,-1}function g3(i,n,e,r){i=i|0,n=n|0,e=e|0,r=r|0;var A=0,_=0;_=i,A=X-32|0,X=A,T6(n,e,r,A+28|0,A+20|0,A+12|0),i=0;e:{r:{t:{for(;;){n:{if(!o[i+_|0]){n=i;break n}if(n=i+1|0,!o[_+n|0]||(n=i+2|0,!o[_+n|0]))break n;if(i=i+3|0,(i|0)!=102)continue;break t}break}if((n|0)!=101)break t;e=A+8|0,r=A+16|0,i=0;n:{if(o[_|0]!=36|o[_+1|0]!=55|o[_+2|0]!=36||(n=vr(o[_+3|0]),t[A+24>>2]=n?n-1024|0:0,!n)||(n=Tn(e,_+4|0),!n))break n;i=Tn(r,n)}if(i)break r;t[10172]=28,i=-1;break e}t[10172]=28,i=-1;break e}if(i=1,t[A+28>>2]!=t[A+24>>2]|t[A+12>>2]!=t[A+8>>2])break e;i=t[A+20>>2]!=t[A+16>>2]}return X=A+32|0,i|0}function mn(i,n,e,r,A,_,s){var h=0,a=0,u=0,B=0,v=0,g=0;h=X-96|0,X=h,Ee(h,_,s,0),s=h+32|0,a=_+16|0,N6(s,32,0,a,h),_=-1;e:{r:{if(Hn(e,n,r,A,s))break r;if(_=0,!i)break e;t:{n:{if(!(!((!A&n-i>>>0<r>>>0|(A|0)!=0)&i>>>0<n>>>0)&(!A&i-n>>>0>=r>>>0|i>>>0<=n>>>0))){r&&_2(i,n,r),n=i;break n}if(!(r|A))break t}if(u=h- -64|0,_=!A&r>>>0>=32|(A|0)!=0,e=_?32:r,s=_?0:A,B=!e,B||_2(u,n,e),_=h+32|0,v=_,_=s,g=e+32|0,_=g>>>0<32?_+1|0:_,En(v,v,g,_,a,h),B||_2(i,u,e),N0(h+32|0,64),_=0,!A&r>>>0<33)break r;xt(i+e|0,n+e|0,r-e|0,A-(s+(e>>>0>r>>>0)|0)|0,a,1,0,h);break r}i=h+32|0,En(i,i,32,0,a,h),N0(i,64)}N0(h,32)}return X=h+96|0,_}function u4(i,n,e,r,A,_,s,h,a,u,B){if(n&&k2(i,0,n),(e|0)==1|e>>>0>1)return t[10172]=22,-1;e:{if(!e&n>>>0<=15)break e;if(!(!(_|a)&u>>>0<2147483649))return t[10172]=22,-1;if(!(!!(h|a)&u>>>0>8191)|(i|0)==(r|0))break e;if((B|0)==2){e=X+-64|0,X=e,i&&q1(i,n),a=u>>>10|0,_=U1(n);r:{if(!_){r=-22;break r}t[e+28>>2]=0,t[e+32>>2]=0,t[e+24>>2]=16,t[e+20>>2]=s,t[e+16>>2]=A,t[e+12>>2]=r,t[e+8>>2]=n,t[e+4>>2]=_,t[e+36>>2]=0,t[e+40>>2]=0,t[e+60>>2]=0,t[e+56>>2]=1,t[e+52>>2]=1,t[e+48>>2]=a,t[e+44>>2]=h,r=kn(e+4|0,2),!n|(r|!i)||_2(i,_,n),N0(_,n),l1(_)}return X=e- -64|0,r?-1:0}return t[10172]=28,-1}return t[10172]=28,-1}function qn(i,n,e,r,A,_,s){var h=0,a=0,u=0,B=0,v=0,g=0;h=X-96|0,X=h,L1(h,_,s,0),s=h+32|0,a=_+16|0,Tt(s,32,0,a,h),_=-1;e:{r:{if(Hn(e,n,r,A,s))break r;if(_=0,!i)break e;t:{n:{if(!(!((!A&n-i>>>0<r>>>0|(A|0)!=0)&i>>>0<n>>>0)&(!A&i-n>>>0>=r>>>0|i>>>0<=n>>>0))){r&&_2(i,n,r),n=i;break n}if(!(r|A))break t}if(u=h- -64|0,_=!A&r>>>0>=32|(A|0)!=0,e=_?32:r,s=_?0:A,B=!e,B||_2(u,n,e),_=h+32|0,v=_,_=s,g=e+32|0,_=g>>>0<32?_+1|0:_,In(v,v,g,_,a,h),B||_2(i,u,e),_=0,!A&r>>>0<33)break r;gr(i+e|0,n+e|0,r-e|0,A-(s+(e>>>0>r>>>0)|0)|0,a,1,0,h);break r}i=h+32|0,In(i,i,32,0,a,h)}N0(h,32)}return X=h+96|0,_}function H0(i,n,e){var r=0,A=0,_=0;r=t[n+12>>2],A=t[n+8>>2],_=t[n+4>>2],n=t[n>>2],t[i>>2]=t[e>>2]^(t[(r>>>22&1020)+37408>>2]^(t[(A>>>14&1020)+36384>>2]^(t[(_>>>6&1020)+35360>>2]^t[((n&255)<<2)+34336>>2]))),t[i+4>>2]=t[e+4>>2]^(t[(n>>>22&1020)+37408>>2]^(t[(r>>>14&1020)+36384>>2]^(t[(A>>>6&1020)+35360>>2]^t[((_&255)<<2)+34336>>2]))),t[i+8>>2]=t[e+8>>2]^(t[(_>>>22&1020)+37408>>2]^(t[(n>>>14&1020)+36384>>2]^(t[(r>>>6&1020)+35360>>2]^t[((A&255)<<2)+34336>>2]))),t[i+12>>2]=t[e+12>>2]^(t[(A>>>22&1020)+37408>>2]^(t[(_>>>14&1020)+36384>>2]^(t[(n>>>6&1020)+35360>>2]^t[((r&255)<<2)+34336>>2])))}function y4(i,n,e,r,A,_,s,h,a,u){var B=0,v=0;B=X-400|0,X=B,t[B+4>>2]=0,v=B+16|0,L1(v,a,u,0),u=o[a+20|0]|o[a+21|0]<<8|(o[a+22|0]<<16|o[a+23|0]<<24),t[B+8>>2]=o[a+16|0]|o[a+17|0]<<8|(o[a+18|0]<<16|o[a+19|0]<<24),t[B+12>>2]=u,u=B+80|0,rr(u,64,0,B+4|0,v),a=B+144|0,re(a,u),N0(u,64),m2(a,_,s,h),m2(a,39776,0-s&15,0),m2(a,n,e,r),m2(a,39776,0-e&15,0),t[B+72>>2]=s,t[B+76>>2]=h,_=B+72|0,m2(a,_,8,0),t[B+72>>2]=e,t[B+76>>2]=r,m2(a,_,8,0),_=B+48|0,te(a,_),N0(a,256),a=cr(_,A),N0(_,16);e:{if(!i)break e;if(a){e&&k2(i,0,e),a=-1;break e}i_(i,n,e,r,B+4|0,B+16|0),a=0}return N0(B+16|0,32),X=B+400|0,a}function f4(i,n,e,r,A,_){var s=0,h=0;if(s=X-496|0,X=s,h=s+288|0,We(h,i,n),ue(h,e,r,0),_)for(i=0,n=0;n=n+1|0,e=w2(n&16711935,8)|w2(n,24)&16711935,f[s+76|0]=e,f[s+77|0]=e>>>8,f[s+78|0]=e>>>16,f[s+79|0]=e>>>24,e=s+80|0,_2(e,s+288|0,208),ue(e,s+76|0,4,0),Zr(e,s+32|0),e=t[s+60>>2],t[s+24>>2]=t[s+56>>2],t[s+28>>2]=e,e=t[s+52>>2],t[s+16>>2]=t[s+48>>2],t[s+20>>2]=e,e=t[s+44>>2],t[s+8>>2]=t[s+40>>2],t[s+12>>2]=e,e=t[s+36>>2],t[s>>2]=t[s+32>>2],t[s+4>>2]=e,e=_-i|0,e=e>>>0>=32?32:e,e&&_2(i+A|0,s,e),i=n<<5,_>>>0>i>>>0;);N0(s+288|0,208),X=s+496|0}function a4(i,n,e,r,A,_){var s=0,h=0,a=0;s=X-32|0,X=s,h=-1,a=e>>>0<32;e:{if(a&!r||(W4(s,32,0,A,_),Hn(n+16|0,n+32|0,e-32|0,r-a|0,s)))break e;R6(i,n,e,r,A,_),f[i+24|0]=0,f[i+25|0]=0,f[i+26|0]=0,f[i+27|0]=0,f[i+28|0]=0,f[i+29|0]=0,f[i+30|0]=0,f[i+31|0]=0,f[i+16|0]=0,f[i+17|0]=0,f[i+18|0]=0,f[i+19|0]=0,f[i+20|0]=0,f[i+21|0]=0,f[i+22|0]=0,f[i+23|0]=0,f[i+8|0]=0,f[i+9|0]=0,f[i+10|0]=0,f[i+11|0]=0,f[i+12|0]=0,f[i+13|0]=0,f[i+14|0]=0,f[i+15|0]=0,f[i|0]=0,f[i+1|0]=0,f[i+2|0]=0,f[i+3|0]=0,f[i+4|0]=0,f[i+5|0]=0,f[i+6|0]=0,f[i+7|0]=0,h=0}return X=s+32|0,h}function d3(i,n,e,r,A){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0;var _=0,s=0,h=0,a=0;_=X-496|0,X=_,f[_+15|0]=1;e:{if(n>>>0<=16320){if(n>>>0>=64)for(s=64;a=s,s=_+80|0,Ye(s,A,64),h&&le(s,(i+h|0)+-64|0,64,0),s=_+80|0,le(s,e,r,0),le(s,_+15|0,1,0),er(s,i+h|0),f[_+15|0]=o[_+15|0]+1,h=a,s=h- -64|0,s>>>0<=n>>>0;);n=n&63,n&&(h=_+80|0,Ye(h,A,64),a&&le(h,(i+a|0)+-64|0,64,0),A=_+80|0,le(A,e,r,0),le(A,_+15|0,1,0),e=_+16|0,er(A,e),n&&_2(i+a|0,e,n),N0(_+16|0,64)),N0(_+80|0,416),i=0;break e}t[10172]=28,i=-1}return X=_+496|0,i|0}function B4(i,n,e,r,A,_,s,h,a,u,B){var v=0,g=0,w=0;return v=X-384|0,X=v,t[v+4>>2]=0,g=v+16|0,L1(g,u,B,0),B=o[u+20|0]|o[u+21|0]<<8|(o[u+22|0]<<16|o[u+23|0]<<24),t[v+8>>2]=o[u+16|0]|o[u+17|0]<<8|(o[u+18|0]<<16|o[u+19|0]<<24),t[v+12>>2]=B,B=v- -64|0,w=v+4|0,rr(B,64,0,w,g),u=v+128|0,re(u,B),N0(B,64),m2(u,s,h,a),m2(u,39776,0-h&15,0),i_(i,r,A,_,w,g),m2(u,i,A,_),m2(u,39776,0-A&15,0),t[v+56>>2]=h,t[v+60>>2]=a,i=v+56|0,m2(u,i,8,0),t[v+56>>2]=A,t[v+60>>2]=_,m2(u,i,8,0),te(u,n),N0(u,256),e&&(t[e>>2]=16,t[e+4>>2]=0),N0(v+16|0,32),X=v+384|0,0}function w3(i,n,e,r,A){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0;var _=0,s=0,h=0,a=0;_=X-256|0,X=_,f[_+15|0]=1;e:{if(n>>>0<=8160){if(n>>>0>=32)for(s=32;a=s,s=_+48|0,We(s,A,32),h&&ue(s,(i+h|0)-32|0,32,0),s=_+48|0,ue(s,e,r,0),ue(s,_+15|0,1,0),Zr(s,i+h|0),f[_+15|0]=o[_+15|0]+1,h=a,s=h+32|0,s>>>0<=n>>>0;);n=n&31,n&&(h=_+48|0,We(h,A,32),a&&ue(h,(i+a|0)-32|0,32,0),A=_+48|0,ue(A,e,r,0),ue(A,_+15|0,1,0),e=_+16|0,Zr(A,e),n&&_2(i+a|0,e,n),N0(_+16|0,32)),N0(_+48|0,208),i=0;break e}t[10172]=28,i=-1}return X=_+256|0,i|0}function C6(i){var n=0,e=0,r=0;if(!i)return-25;if(!t[i>>2])return-1;if(R1[i+4>>2]<16)return-2;if(!(t[i+8>>2]|!t[i+12>>2]))return-18;if(n=t[i+20>>2],!t[i+16>>2])return n?-19:-6;if(n>>>0<8)return-6;if(!(t[i+24>>2]|!t[i+28>>2]))return-20;if(!(t[i+32>>2]|!t[i+36>>2]))return-21;if(n=t[i+48>>2],!n)return-16;if(n>>>0>16777215)return-17;r=-14,e=t[i+44>>2];e:{if(e>>>0<8)break e;if(e>>>0>2097152)return-15;if(n<<3>>>0>e>>>0)break e;if(!t[i+40>>2])return-12;if(i=t[i+52>>2],!i)return-28;r=i>>>0>16777215?-29:0}return r}function Xr(i,n){var e=0,r=0,A=0;r=n;e:{r:{t:{if(n=n&255,n){if(i&3)for(;;){if(e=o[i|0],!e|(n|0)==(e|0))break e;if(i=i+1|0,!(i&3))break}if(e=t[i>>2],((e|16843008-e)&-2139062144)!=-2139062144)break t;for(A=i2(n,16843009);;){if(n=e^A,((16843008-n|n)&-2139062144)!=-2139062144)break t;if(e=t[i+4>>2],n=i+4|0,i=n,((16843008-e|e)&-2139062144)!=-2139062144)break}break r}i=ee(i)+i|0;break e}n=i}for(;;){if(i=n,e=o[i|0],!e)break e;if(n=i+1|0,(e|0)==(r&255))break}}return o[i|0]==(r&255)?i:0}function p4(i,n,e,r,A){var _=0,s=0,h=0;_=X+-64|0,X=_,h=ee(i);e:{if(!(!e&h>>>0<128)){t[10172]=28,i=-1;break e}t[_+60>>2]=0,t[_+52>>2]=0,t[_+56>>2]=0,t[_+44>>2]=0,t[_+48>>2]=0,e=0;r:{if(!h)break r;e=h}if(s=U1(e),!s|!(o[s-4|0]&3)||N0(s,e),!s){i=-1;break e}t[_+12>>2]=s,t[_+20>>2]=s,t[_+24>>2]=h,t[_+4>>2]=s,t[_+16>>2]=h,t[_+28>>2]=0,t[_+32>>2]=0,t[_+8>>2]=h,t[_+36>>2]=0,t[_+40>>2]=0;r:{if(t4(_+4|0,i,A)){t[10172]=28,i=-1;break r}i=t[_+44>>2]!=(n|0)|t[_+48>>2]!=(r>>>10|0)}l1(s)}return X=_- -64|0,i}function Gr(i,n,e,r){var A=0,_=0;return A=X-208|0,X=A,t[A+72>>2]=0,t[A+76>>2]=0,t[A+64>>2]=0,t[A+68>>2]=0,_=t[9613],t[A>>2]=t[9612],t[A+4>>2]=_,_=t[9615],t[A+8>>2]=t[9614],t[A+12>>2]=_,_=t[9617],t[A+16>>2]=t[9616],t[A+20>>2]=_,_=t[9619],t[A+24>>2]=t[9618],t[A+28>>2]=_,_=t[9621],t[A+32>>2]=t[9620],t[A+36>>2]=_,_=t[9623],t[A+40>>2]=t[9622],t[A+44>>2]=_,_=t[9625],t[A+48>>2]=t[9624],t[A+52>>2]=_,_=t[9627],t[A+56>>2]=t[9626],t[A+60>>2]=_,a1(A,n,e,r),N1(A,i),X=A+208|0,0}function m3(i,n,e,r,A,_,s,h,a,u){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0,_=_|0,s=s|0,h=h|0,a=a|0,u=u|0;var B=0,v=0;B=0|A,h=h|v,A=X-16|0,X=A,n=n|v,n&&k2(i,0,n),_=e|_;e:{if((_|0)==1|_>>>0>1){t[10172]=22,i=-1;break e}if(!e&n>>>0>=16|e){if(T6(h,a,u,A+12|0,A+8|0,A+4|0),(i|0)==(r|0)){t[10172]=28,i=-1;break e}h=r,r=t[A+12>>2],e=r&31,(r&63)>>>0>=32?(r=1<<e,_=0):(_=1<<e,r=_-1&1>>>32-e),i=Q4(h,B,s,32,_,r,t[A+4>>2],t[A+8>>2],i,n);break e}t[10172]=28,i=-1}return X=A+16|0,i|0}function q3(i,n,e,r,A){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0;var _=0,s=0,h=0,a=0;s=X-16|0,X=s;e:{r:{if(!r){n=-1;break r}_=r-1|0;t:{if(!(_&r)){h=e^-1,_=_&h;break t}h=e^-1,_=_-((e>>>0)%(r>>>0)|0)|0}if(_>>>0>=h>>>0)break e;if(e=e+_|0,e>>>0>=A>>>0){n=-1;break r}for(i&&(t[i>>2]=e+1),i=n+e|0,n=0,f[s+15|0]=0,e=0;A=i-e|0,h=A,a=o[A|0]&o[s+15|0],A=(e^_)-1>>>24|0,f[h|0]=a|A&128,f[s+15|0]=A|o[s+15|0],e=e+1|0,(r|0)!=(e|0););}return X=s+16|0,n|0}Q2(),C2()}function T3(i,n,e){return i=i|0,n=n|0,e=e|0,q1(n,24),L1(i,n,e,0),f[i+32|0]=1,f[i+33|0]=0,f[i+34|0]=0,f[i+35|0]=0,e=o[n+16|0]|o[n+17|0]<<8|(o[n+18|0]<<16|o[n+19|0]<<24),n=o[n+20|0]|o[n+21|0]<<8|(o[n+22|0]<<16|o[n+23|0]<<24),f[i+44|0]=0,f[i+45|0]=0,f[i+46|0]=0,f[i+47|0]=0,f[i+48|0]=0,f[i+49|0]=0,f[i+50|0]=0,f[i+51|0]=0,f[i+36|0]=e,f[i+37|0]=e>>>8,f[i+38|0]=e>>>16,f[i+39|0]=e>>>24,f[i+40|0]=n,f[i+41|0]=n>>>8,f[i+42|0]=n>>>16,f[i+43|0]=n>>>24,0}function S3(i,n,e){return i=i|0,n=n|0,e=e|0,L1(i,n,e,0),f[i+32|0]=1,f[i+33|0]=0,f[i+34|0]=0,f[i+35|0]=0,e=o[n+16|0]|o[n+17|0]<<8|(o[n+18|0]<<16|o[n+19|0]<<24),n=o[n+20|0]|o[n+21|0]<<8|(o[n+22|0]<<16|o[n+23|0]<<24),f[i+44|0]=0,f[i+45|0]=0,f[i+46|0]=0,f[i+47|0]=0,f[i+48|0]=0,f[i+49|0]=0,f[i+50|0]=0,f[i+51|0]=0,f[i+36|0]=e,f[i+37|0]=e>>>8,f[i+38|0]=e>>>16,f[i+39|0]=e>>>24,f[i+40|0]=n,f[i+41|0]=n>>>8,f[i+42|0]=n>>>16,f[i+43|0]=n>>>24,0}function Je(i){i=i|0;var n=0;return t[i+72>>2]=0,t[i+76>>2]=0,n=i- -64|0,t[n>>2]=0,t[n+4>>2]=0,n=t[9613],t[i>>2]=t[9612],t[i+4>>2]=n,n=t[9615],t[i+8>>2]=t[9614],t[i+12>>2]=n,n=t[9617],t[i+16>>2]=t[9616],t[i+20>>2]=n,n=t[9619],t[i+24>>2]=t[9618],t[i+28>>2]=n,n=t[9621],t[i+32>>2]=t[9620],t[i+36>>2]=n,n=t[9623],t[i+40>>2]=t[9622],t[i+44>>2]=n,n=t[9625],t[i+48>>2]=t[9624],t[i+52>>2]=n,n=t[9627],t[i+56>>2]=t[9626],t[i+60>>2]=n,0}function j1(i,n){var e=0,r=0,A=0,_=0,s=0;e=X-16|0,f[e+15|0]=0;e:{if(!n)break e;if(A=n&3,n>>>0>=4){for(s=n&-4;n=i+r|0,f[e+15|0]=o[n|0]|o[e+15|0],f[e+15|0]=o[n+1|0]|o[e+15|0],f[e+15|0]=o[n+2|0]|o[e+15|0],f[e+15|0]=o[n+3|0]|o[e+15|0],r=r+4|0,_=_+4|0,(s|0)!=(_|0););if(!A)break e}for(n=0;f[e+15|0]=o[i+r|0]|o[e+15|0],r=r+1|0,n=n+1|0,(A|0)!=(n|0););}return o[e+15|0]-1>>>31|0}function M6(i){return(((o[i+31|0]^-1)&127|o[i+1|0]&(o[i+2|0]&(o[i+3|0]&(o[i+4|0]&(o[i+5|0]&(o[i+6|0]&(o[i+7|0]&(o[i+8|0]&(o[i+9|0]&(o[i+10|0]&(o[i+11|0]&(o[i+12|0]&(o[i+13|0]&(o[i+14|0]&(o[i+15|0]&(o[i+16|0]&(o[i+17|0]&(o[i+18|0]&(o[i+19|0]&(o[i+20|0]&(o[i+21|0]&(o[i+22|0]&(o[i+23|0]&(o[i+24|0]&(o[i+25|0]&(o[i+26|0]&(o[i+27|0]&(o[i+28|0]&(o[i+30|0]&o[i+29|0]))))))))))))))))))))))))))))^255)-1&236-o[i|0]^-1)>>>8&1}function kr(i,n,e){var r=0,A=0,_=0;r=X-16|0,t[r+12>>2]=i,t[r+8>>2]=n,i=0,f[r+7|0]=0;e:{if(!e)break e;if((e|0)!=1){for(n=e&1,_=e&-2,e=0;f[r+7|0]=o[r+7|0]|o[t[r+12>>2]+i|0]^o[t[r+8>>2]+i|0],A=i|1,f[r+7|0]=o[r+7|0]|o[A+t[r+12>>2]|0]^o[t[r+8>>2]+A|0],i=i+2|0,e=e+2|0,(_|0)!=(e|0););if(!n)break e}f[r+7|0]=o[r+7|0]|o[t[r+12>>2]+i|0]^o[t[r+8>>2]+i|0]}return(o[r+7|0]-1>>>31|0)-1|0}function P3(i,n,e,r){i=i|0,n=n|0,e=e|0,r=r|0;var A=0,_=0,s=0;A=i,s=e,e=0,r=X-128|0,X=r;e:{r:{for(;;){if(!o[e+A|0]){i=e;break r}if(i=e+1|0,!o[A+i|0]||(i=e+2|0,!o[A+i|0]))break r;if(e=e+3|0,(e|0)==102)break}e=-1;break e}if(e=-1,(i|0)!=101||(_=r+4|0,Y6(_),i=r+16|0,k2(i,0,102),n=i4(_,n,s,A,i),Dn(_),!n))break e;e=kr(i,A,102),N0(i,102)}return X=r+128|0,e|0}function c4(i,n,e,r,A,_,s,h,a,u){var B=0,v=0,g=0;B=X-352|0,X=B,g=B+32|0,rr(g,64,0,a,u),v=B+96|0,re(v,g),N0(g,64),m2(v,_,s,h),m2(v,39744,0-s&15,0),m2(v,n,e,r),m2(v,39744,0-e&15,0),t[B+24>>2]=s,t[B+28>>2]=h,_=B+24|0,m2(v,_,8,0),t[B+24>>2]=e,t[B+28>>2]=r,m2(v,_,8,0),te(v,B),N0(v,256),_=cr(B,A),N0(B,16);e:{if(!i)break e;if(_){e&&k2(i,0,e),_=-1;break e}jr(i,n,e,r,a,1,u),_=0}return X=B+352|0,_}function qt(i){for(var n=0,e=0,r=0,A=0,_=0,s=0,h=0,a=0,u=0,B=0;e=o[i+r|0],n=r+2688|0,A=e^o[n|0]|A,_=e^o[n+192|0]|_,s=e^o[n+160|0]|s,h=e^o[n+128|0]|h,a=e^o[n+96|0]|a,u=e^o[n- -64|0]|u,B=e^o[n+32|0]|B,r=r+1|0,(r|0)!=31;);return i=o[i+31|0]&127,n=i^127,(((n|_)&255)-1|(((n|s)&255)-1|(((n|h)&255)-1|(((i^122|a)&255)-1|(((i^5|u)&255)-1|(((i|B)&255)-1|((i|A)&255)-1))))))>>>8&1}function k4(i,n,e,r,A,_){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0,_=_|0;var s=0,h=0;e:r:{t:{n:{if(!A&r>>>0<64||(A=A-1|0,h=A+1|0,s=A,A=r+-64|0,r=A>>>0<4294967232?h:s,!r&A>>>0>4294967231|r))break n;if(s=e,e=e- -64|0,!c6(s,e,A,r,_,0))break t;if(!i|!A)break n;k2(i,0,A)}if(r=-1,!n)break r;t[n>>2]=0,t[n+4>>2]=0,r=-1;break e}if(n&&(t[n>>2]=A,t[n+4>>2]=r),r=0,!i|!A)break r;_2(i,e,A)}return r|0}function x(i,n,e){var r=0,A=0,_=0,s=0;return s=e&63,_=s,A=_&31,_>>>0>=32?_=-1>>>A|0:(r=-1>>>A|0,_=r|(1<<A)-1<<32-A),_=_&i,r=n&r,A=s&31,s>>>0>=32?(r=_<<A,s=0):(r=(1<<A)-1&_>>>32-A|r<<A,s=_<<A),_=r,A=0-e&63,r=A&31,A>>>0>=32?(r=-1<<r,e=0):(e=-1<<r,r=e|(1<<r)-1&-1>>>32-r),i=e&i,n=n&r,r=A&31,A>>>0>=32?(e=0,i=n>>>r|0):(e=n>>>r|0,i=((1<<r)-1&n)<<32-r|i>>>r),i=i|s,c=e|_,i}function v4(i,n,e,r,A,_){i=i|0,n=n|0,e=e|0,r=r|0,A=A|0,_=_|0;var 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p=[];m0(l);var y=new g0(0|F._crypto_aead_aegis128l_keybytes()),k=y.address;p.push(k),F._crypto_aead_aegis128l_keygen(k);var j=D0(y,l);return v0(p),j}function M7(l,p,y,k,j,d){var m=[];m0(d);var P=null;l!=null&&(P=J(l=b(m,l,"secret_nonce")),l.length,m.push(P)),p=b(m,p,"ciphertext");var R,L=F._crypto_aead_aegis256_abytes(),O=p.length;O<L&&l0(m,"ciphertext is too short"),R=J(p),m.push(R);var n0=null,Z=0;y!=null&&(n0=J(y=b(m,y,"additional_data")),Z=y.length,m.push(n0)),k=b(m,k,"public_nonce");var r0,_0=0|F._crypto_aead_aegis256_npubbytes();k.length!==_0&&l0(m,"invalid public_nonce length"),r0=J(k),m.push(r0),j=b(m,j,"key");var p0,q0=0|F._crypto_aead_aegis256_keybytes();j.length!==q0&&l0(m,"invalid key length"),p0=J(j),m.push(p0);var a0=new g0(O-F._crypto_aead_aegis256_abytes()|0),k0=a0.address;if(m.push(k0),F._crypto_aead_aegis256_decrypt(k0,null,P,R,O,0,n0,Z,0,r0,p0)===0){var S0=D0(a0,d);return v0(m),S0}Y0(m,"ciphertext cannot be decrypted using that key")}function E7(l,p,y,k,j,d,m){var P=[];m0(m);var R=null;l!=null&&(R=J(l=b(P,l,"secret_nonce")),l.length,P.push(R));var L=J(p=b(P,p,"ciphertext")),O=p.length;P.push(L),y=b(P,y,"mac");var n0,Z=0|F._crypto_box_macbytes();y.length!==Z&&l0(P,"invalid mac length"),n0=J(y),P.push(n0);var r0=null,_0=0;k!=null&&(r0=J(k=b(P,k,"additional_data")),_0=k.length,P.push(r0)),j=b(P,j,"public_nonce");var p0,q0=0|F._crypto_aead_aegis256_npubbytes();j.length!==q0&&l0(P,"invalid public_nonce length"),p0=J(j),P.push(p0),d=b(P,d,"key");var a0,k0=0|F._crypto_aead_aegis256_keybytes();d.length!==k0&&l0(P,"invalid key length"),a0=J(d),P.push(a0);var S0=new g0(0|O),C0=S0.address;if(P.push(C0),F._crypto_aead_aegis256_decrypt_detached(C0,R,L,O,0,n0,r0,_0,0,p0,a0)===0){var A2=D0(S0,m);return v0(P),A2}Y0(P,"ciphertext cannot be decrypted using that key")}function H7(l,p,y,k,j,d){var m=[];m0(d);var P=J(l=b(m,l,"message")),R=l.length;m.push(P);var L=null,O=0;p!=null&&(L=J(p=b(m,p,"additional_data")),O=p.length,m.push(L));var n0=null;y!=null&&(n0=J(y=b(m,y,"secret_nonce")),y.length,m.push(n0)),k=b(m,k,"public_nonce");var Z,r0=0|F._crypto_aead_aegis256_npubbytes();k.length!==r0&&l0(m,"invalid public_nonce length"),Z=J(k),m.push(Z),j=b(m,j,"key");var _0,p0=0|F._crypto_aead_aegis256_keybytes();j.length!==p0&&l0(m,"invalid key length"),_0=J(j),m.push(_0);var q0=new g0(R+F._crypto_aead_aegis256_abytes()|0),a0=q0.address;if(m.push(a0),F._crypto_aead_aegis256_encrypt(a0,null,P,R,0,L,O,0,n0,Z,_0)===0){var k0=D0(q0,d);return v0(m),k0}Y0(m,"invalid usage")}function R7(l,p,y,k,j,d){var m=[];m0(d);var P=J(l=b(m,l,"message")),R=l.length;m.push(P);var L=null,O=0;p!=null&&(L=J(p=b(m,p,"additional_data")),O=p.length,m.push(L));var n0=null;y!=null&&(n0=J(y=b(m,y,"secret_nonce")),y.length,m.push(n0)),k=b(m,k,"public_nonce");var Z,r0=0|F._crypto_aead_aegis256_npubbytes();k.length!==r0&&l0(m,"invalid public_nonce length"),Z=J(k),m.push(Z),j=b(m,j,"key");var _0,p0=0|F._crypto_aead_aegis256_keybytes();j.length!==p0&&l0(m,"invalid key length"),_0=J(j),m.push(_0);var q0=new g0(0|R),a0=q0.address;m.push(a0);var k0=new g0(0|F._crypto_aead_aegis256_abytes()),S0=k0.address;if(m.push(S0),F._crypto_aead_aegis256_encrypt_detached(a0,S0,null,P,R,0,L,O,0,n0,Z,_0)===0){var C0=D0({ciphertext:q0,mac:k0},d);return v0(m),C0}Y0(m,"invalid usage")}function L7(l){var p=[];m0(l);var y=new g0(0|F._crypto_aead_aegis256_keybytes()),k=y.address;p.push(k),F._crypto_aead_aegis256_keygen(k);var j=D0(y,l);return v0(p),j}function Y7(l,p,y,k,j,d){var m=[];m0(d);var P=null;l!=null&&(P=J(l=b(m,l,"secret_nonce")),l.length,m.push(P)),p=b(m,p,"ciphertext");var R,L=F._crypto_aead_chacha20poly1305_abytes(),O=p.length;O<L&&l0(m,"ciphertext is too short"),R=J(p),m.push(R);var n0=null,Z=0;y!=null&&(n0=J(y=b(m,y,"additional_data")),Z=y.length,m.push(n0)),k=b(m,k,"public_nonce");var r0,_0=0|F._crypto_aead_chacha20poly1305_npubbytes();k.length!==_0&&l0(m,"invalid public_nonce 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a0,k0=0|F._crypto_aead_chacha20poly1305_keybytes();d.length!==k0&&l0(P,"invalid key length"),a0=J(d),P.push(a0);var S0=new g0(0|O),C0=S0.address;if(P.push(C0),F._crypto_aead_chacha20poly1305_decrypt_detached(C0,R,L,O,0,n0,r0,_0,0,p0,a0)===0){var A2=D0(S0,m);return v0(P),A2}Y0(P,"ciphertext cannot be decrypted using that key")}function F7(l,p,y,k,j,d){var m=[];m0(d);var P=J(l=b(m,l,"message")),R=l.length;m.push(P);var L=null,O=0;p!=null&&(L=J(p=b(m,p,"additional_data")),O=p.length,m.push(L));var n0=null;y!=null&&(n0=J(y=b(m,y,"secret_nonce")),y.length,m.push(n0)),k=b(m,k,"public_nonce");var Z,r0=0|F._crypto_aead_chacha20poly1305_npubbytes();k.length!==r0&&l0(m,"invalid public_nonce length"),Z=J(k),m.push(Z),j=b(m,j,"key");var _0,p0=0|F._crypto_aead_chacha20poly1305_keybytes();j.length!==p0&&l0(m,"invalid key length"),_0=J(j),m.push(_0);var q0=new g0(R+F._crypto_aead_chacha20poly1305_abytes()|0),a0=q0.address;if(m.push(a0),F._crypto_aead_chacha20poly1305_encrypt(a0,null,P,R,0,L,O,0,n0,Z,_0)===0){var k0=D0(q0,d);return v0(m),k0}Y0(m,"invalid usage")}function Q7(l,p,y,k,j,d){var m=[];m0(d);var P=J(l=b(m,l,"message")),R=l.length;m.push(P);var L=null,O=0;p!=null&&(L=J(p=b(m,p,"additional_data")),O=p.length,m.push(L));var n0=null;y!=null&&(n0=J(y=b(m,y,"secret_nonce")),y.length,m.push(n0)),k=b(m,k,"public_nonce");var Z,r0=0|F._crypto_aead_chacha20poly1305_npubbytes();k.length!==r0&&l0(m,"invalid public_nonce length"),Z=J(k),m.push(Z),j=b(m,j,"key");var _0,p0=0|F._crypto_aead_chacha20poly1305_keybytes();j.length!==p0&&l0(m,"invalid key length"),_0=J(j),m.push(_0);var q0=new g0(0|R),a0=q0.address;m.push(a0);var k0=new g0(0|F._crypto_aead_chacha20poly1305_abytes()),S0=k0.address;if(m.push(S0),F._crypto_aead_chacha20poly1305_encrypt_detached(a0,S0,null,P,R,0,L,O,0,n0,Z,_0)===0){var C0=D0({ciphertext:q0,mac:k0},d);return v0(m),C0}Y0(m,"invalid usage")}function O7(l,p,y,k,j,d){var m=[];m0(d);var P=null;l!=null&&(P=J(l=b(m,l,"secret_nonce")),l.length,m.push(P)),p=b(m,p,"ciphertext");var R,L=F._crypto_aead_chacha20poly1305_ietf_abytes(),O=p.length;O<L&&l0(m,"ciphertext is too short"),R=J(p),m.push(R);var n0=null,Z=0;y!=null&&(n0=J(y=b(m,y,"additional_data")),Z=y.length,m.push(n0)),k=b(m,k,"public_nonce");var r0,_0=0|F._crypto_aead_chacha20poly1305_ietf_npubbytes();k.length!==_0&&l0(m,"invalid public_nonce length"),r0=J(k),m.push(r0),j=b(m,j,"key");var p0,q0=0|F._crypto_aead_chacha20poly1305_ietf_keybytes();j.length!==q0&&l0(m,"invalid key length"),p0=J(j),m.push(p0);var a0=new g0(O-F._crypto_aead_chacha20poly1305_ietf_abytes()|0),k0=a0.address;if(m.push(k0),F._crypto_aead_chacha20poly1305_ietf_decrypt(k0,null,P,R,O,0,n0,Z,0,r0,p0)===0){var S0=D0(a0,d);return v0(m),S0}Y0(m,"ciphertext cannot be decrypted using that key")}function X7(l,p,y,k,j,d,m){var P=[];m0(m);var R=null;l!=null&&(R=J(l=b(P,l,"secret_nonce")),l.length,P.push(R));var L=J(p=b(P,p,"ciphertext")),O=p.length;P.push(L),y=b(P,y,"mac");var n0,Z=0|F._crypto_box_macbytes();y.length!==Z&&l0(P,"invalid mac length"),n0=J(y),P.push(n0);var r0=null,_0=0;k!=null&&(r0=J(k=b(P,k,"additional_data")),_0=k.length,P.push(r0)),j=b(P,j,"public_nonce");var p0,q0=0|F._crypto_aead_chacha20poly1305_ietf_npubbytes();j.length!==q0&&l0(P,"invalid public_nonce length"),p0=J(j),P.push(p0),d=b(P,d,"key");var a0,k0=0|F._crypto_aead_chacha20poly1305_ietf_keybytes();d.length!==k0&&l0(P,"invalid key length"),a0=J(d),P.push(a0);var S0=new g0(0|O),C0=S0.address;if(P.push(C0),F._crypto_aead_chacha20poly1305_ietf_decrypt_detached(C0,R,L,O,0,n0,r0,_0,0,p0,a0)===0){var A2=D0(S0,m);return v0(P),A2}Y0(P,"ciphertext cannot be decrypted using that key")}function G7(l,p,y,k,j,d){var m=[];m0(d);var P=J(l=b(m,l,"message")),R=l.length;m.push(P);var L=null,O=0;p!=null&&(L=J(p=b(m,p,"additional_data")),O=p.length,m.push(L));var n0=null;y!=null&&(n0=J(y=b(m,y,"secret_nonce")),y.length,m.push(n0)),k=b(m,k,"public_nonce");var Z,r0=0|F._crypto_aead_chacha20poly1305_ietf_npubbytes();k.length!==r0&&l0(m,"invalid public_nonce length"),Z=J(k),m.push(Z),j=b(m,j,"key");var _0,p0=0|F._crypto_aead_chacha20poly1305_ietf_keybytes();j.length!==p0&&l0(m,"invalid key length"),_0=J(j),m.push(_0);var q0=new g0(R+F._crypto_aead_chacha20poly1305_ietf_abytes()|0),a0=q0.address;if(m.push(a0),F._crypto_aead_chacha20poly1305_ietf_encrypt(a0,null,P,R,0,L,O,0,n0,Z,_0)===0){var k0=D0(q0,d);return v0(m),k0}Y0(m,"invalid usage")}function U7(l,p,y,k,j,d){var m=[];m0(d);var P=J(l=b(m,l,"message")),R=l.length;m.push(P);var L=null,O=0;p!=null&&(L=J(p=b(m,p,"additional_data")),O=p.length,m.push(L));var n0=null;y!=null&&(n0=J(y=b(m,y,"secret_nonce")),y.length,m.push(n0)),k=b(m,k,"public_nonce");var Z,r0=0|F._crypto_aead_chacha20poly1305_ietf_npubbytes();k.length!==r0&&l0(m,"invalid public_nonce length"),Z=J(k),m.push(Z),j=b(m,j,"key");var _0,p0=0|F._crypto_aead_chacha20poly1305_ietf_keybytes();j.length!==p0&&l0(m,"invalid key length"),_0=J(j),m.push(_0);var q0=new g0(0|R),a0=q0.address;m.push(a0);var k0=new g0(0|F._crypto_aead_chacha20poly1305_ietf_abytes()),S0=k0.address;if(m.push(S0),F._crypto_aead_chacha20poly1305_ietf_encrypt_detached(a0,S0,null,P,R,0,L,O,0,n0,Z,_0)===0){var C0=D0({ciphertext:q0,mac:k0},d);return v0(m),C0}Y0(m,"invalid usage")}function K7(l){var p=[];m0(l);var y=new g0(0|F._crypto_aead_chacha20poly1305_ietf_keybytes()),k=y.address;p.push(k),F._crypto_aead_chacha20poly1305_ietf_keygen(k);var j=D0(y,l);return v0(p),j}function z7(l){var p=[];m0(l);var y=new g0(0|F._crypto_aead_chacha20poly1305_keybytes()),k=y.address;p.push(k),F._crypto_aead_chacha20poly1305_keygen(k);var j=D0(y,l);return v0(p),j}function Z7(l,p,y,k,j,d){var m=[];m0(d);var P=null;l!=null&&(P=J(l=b(m,l,"secret_nonce")),l.length,m.push(P)),p=b(m,p,"ciphertext");var 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g0(0|F._crypto_box_curve25519xchacha20poly1305_beforenmbytes()),L=R.address;if(k.push(L),!(0|F._crypto_box_curve25519xchacha20poly1305_beforenm(L,j,m))){var O=D0(R,y);return v0(k),O}Y0(k,"invalid usage")}function du(l,p,y,k,j){var d=[];m0(j);var m=J(l=b(d,l,"message")),P=l.length;d.push(m),p=b(d,p,"nonce");var R,L=0|F._crypto_box_curve25519xchacha20poly1305_noncebytes();p.length!==L&&l0(d,"invalid nonce length"),R=J(p),d.push(R),y=b(d,y,"publicKey");var O,n0=0|F._crypto_box_curve25519xchacha20poly1305_publickeybytes();y.length!==n0&&l0(d,"invalid publicKey length"),O=J(y),d.push(O),k=b(d,k,"privateKey");var Z,r0=0|F._crypto_box_curve25519xchacha20poly1305_secretkeybytes();k.length!==r0&&l0(d,"invalid privateKey length"),Z=J(k),d.push(Z);var _0=new g0(0|P),p0=_0.address;d.push(p0);var q0=new g0(0|F._crypto_box_curve25519xchacha20poly1305_macbytes()),a0=q0.address;if(d.push(a0),!(0|F._crypto_box_curve25519xchacha20poly1305_detached(p0,a0,m,P,0,R,O,Z))){var k0=D0({ciphertext:_0,mac:q0},j);return v0(d),k0}Y0(d,"invalid usage")}function wu(l,p,y,k){var j=[];m0(k);var d=J(l=b(j,l,"message")),m=l.length;j.push(d),p=b(j,p,"nonce");var P,R=0|F._crypto_box_curve25519xchacha20poly1305_noncebytes();p.length!==R&&l0(j,"invalid nonce length"),P=J(p),j.push(P),y=b(j,y,"sharedKey");var L,O=0|F._crypto_box_curve25519xchacha20poly1305_beforenmbytes();y.length!==O&&l0(j,"invalid sharedKey length"),L=J(y),j.push(L);var n0=new g0(0|m),Z=n0.address;j.push(Z);var r0=new g0(0|F._crypto_box_curve25519xchacha20poly1305_macbytes()),_0=r0.address;if(j.push(_0),!(0|F._crypto_box_curve25519xchacha20poly1305_detached_afternm(Z,_0,d,m,0,P,L))){var p0=D0({ciphertext:n0,mac:r0},k);return v0(j),p0}Y0(j,"invalid usage")}function mu(l,p,y,k,j){var d=[];m0(j);var m=J(l=b(d,l,"message")),P=l.length;d.push(m),p=b(d,p,"nonce");var R,L=0|F._crypto_box_curve25519xchacha20poly1305_noncebytes();p.length!==L&&l0(d,"invalid nonce length"),R=J(p),d.push(R),y=b(d,y,"publicKey");var O,n0=0|F._crypto_box_curve25519xchacha20poly1305_publickeybytes();y.length!==n0&&l0(d,"invalid publicKey length"),O=J(y),d.push(O),k=b(d,k,"privateKey");var Z,r0=0|F._crypto_box_curve25519xchacha20poly1305_secretkeybytes();k.length!==r0&&l0(d,"invalid privateKey length"),Z=J(k),d.push(Z);var _0=new g0(P+F._crypto_box_curve25519xchacha20poly1305_macbytes()|0),p0=_0.address;if(d.push(p0),!(0|F._crypto_box_curve25519xchacha20poly1305_easy(p0,m,P,0,R,O,Z))){var q0=D0(_0,j);return v0(d),q0}Y0(d,"invalid usage")}function qu(l,p,y,k){var j=[];m0(k);var d=J(l=b(j,l,"message")),m=l.length;j.push(d),p=b(j,p,"nonce");var P,R=0|F._crypto_box_curve25519xchacha20poly1305_noncebytes();p.length!==R&&l0(j,"invalid nonce length"),P=J(p),j.push(P),y=b(j,y,"sharedKey");var L,O=0|F._crypto_box_curve25519xchacha20poly1305_beforenmbytes();y.length!==O&&l0(j,"invalid sharedKey length"),L=J(y),j.push(L);var n0=new g0(m+F._crypto_box_curve25519xchacha20poly1305_macbytes()|0),Z=n0.address;if(j.push(Z),!(0|F._crypto_box_curve25519xchacha20poly1305_easy_afternm(Z,d,m,0,P,L))){var r0=D0(n0,k);return v0(j),r0}Y0(j,"invalid usage")}function Tu(l){var p=[];m0(l);var y=new g0(0|F._crypto_box_curve25519xchacha20poly1305_publickeybytes()),k=y.address;p.push(k);var j=new g0(0|F._crypto_box_curve25519xchacha20poly1305_secretkeybytes()),d=j.address;p.push(d),F._crypto_box_curve25519xchacha20poly1305_keypair(k,d);var m=D0({publicKey:y,privateKey:j,keyType:"curve25519"},l);return v0(p),m}function Su(l,p,y,k,j,d){var m=[];m0(d);var P=J(l=b(m,l,"ciphertext")),R=l.length;m.push(P),p=b(m,p,"mac");var L,O=0|F._crypto_box_curve25519xchacha20poly1305_macbytes();p.length!==O&&l0(m,"invalid mac length"),L=J(p),m.push(L),y=b(m,y,"nonce");var n0,Z=0|F._crypto_box_curve25519xchacha20poly1305_noncebytes();y.length!==Z&&l0(m,"invalid nonce length"),n0=J(y),m.push(n0),k=b(m,k,"publicKey");var 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g0(R-F._crypto_box_curve25519xchacha20poly1305_macbytes()|0),q0=p0.address;if(d.push(q0),!(0|F._crypto_box_curve25519xchacha20poly1305_open_easy(q0,m,R,0,L,n0,r0))){var a0=D0(p0,j);return v0(d),a0}Y0(d,"incorrect key pair for the given ciphertext")}function xu(l,p,y,k){var j=[];m0(k);var d=J(l=b(j,l,"ciphertext")),m=l.length;j.push(d),p=b(j,p,"nonce");var P,R=0|F._crypto_box_curve25519xchacha20poly1305_noncebytes();p.length!==R&&l0(j,"invalid nonce length"),P=J(p),j.push(P),y=b(j,y,"sharedKey");var L,O=0|F._crypto_box_curve25519xchacha20poly1305_beforenmbytes();y.length!==O&&l0(j,"invalid sharedKey length"),L=J(y),j.push(L);var n0=new g0(m-F._crypto_box_curve25519xchacha20poly1305_macbytes()|0),Z=n0.address;if(j.push(Z),!(0|F._crypto_box_curve25519xchacha20poly1305_open_easy_afternm(Z,d,m,0,P,L))){var r0=D0(n0,k);return v0(j),r0}Y0(j,"incorrect secret key for the given ciphertext")}function Du(l,p,y){var k=[];m0(y);var j=J(l=b(k,l,"message")),d=l.length;k.push(j),p=b(k,p,"publicKey");var m,P=0|F._crypto_box_curve25519xchacha20poly1305_publickeybytes();p.length!==P&&l0(k,"invalid publicKey length"),m=J(p),k.push(m);var R=new g0(d+F._crypto_box_curve25519xchacha20poly1305_sealbytes()|0),L=R.address;k.push(L),F._crypto_box_curve25519xchacha20poly1305_seal(L,j,d,0,m);var O=D0(R,y);return v0(k),O}function Cu(l,p,y,k){var j=[];m0(k),l=b(j,l,"ciphertext");var d,m=F._crypto_box_curve25519xchacha20poly1305_sealbytes(),P=l.length;P<m&&l0(j,"ciphertext is too short"),d=J(l),j.push(d),p=b(j,p,"publicKey");var R,L=0|F._crypto_box_curve25519xchacha20poly1305_publickeybytes();p.length!==L&&l0(j,"invalid publicKey length"),R=J(p),j.push(R),y=b(j,y,"secretKey");var O,n0=0|F._crypto_box_curve25519xchacha20poly1305_secretkeybytes();y.length!==n0&&l0(j,"invalid secretKey length"),O=J(y),j.push(O);var Z=new g0(P-F._crypto_box_curve25519xchacha20poly1305_sealbytes()|0),r0=Z.address;j.push(r0),F._crypto_box_curve25519xchacha20poly1305_seal_open(r0,d,P,0,R,O);var _0=D0(Z,k);return v0(j),_0}function Mu(l,p){var y=[];m0(p),l=b(y,l,"seed");var k,j=0|F._crypto_box_curve25519xchacha20poly1305_seedbytes();l.length!==j&&l0(y,"invalid seed length"),k=J(l),y.push(k);var d=new g0(0|F._crypto_box_curve25519xchacha20poly1305_publickeybytes()),m=d.address;y.push(m);var P=new g0(0|F._crypto_box_curve25519xchacha20poly1305_secretkeybytes()),R=P.address;if(y.push(R),!(0|F._crypto_box_curve25519xchacha20poly1305_seed_keypair(m,R,k))){var L={publicKey:D0(d,p),privateKey:D0(P,p),keyType:"x25519"};return v0(y),L}Y0(y,"invalid usage")}function Eu(l,p,y,k,j){var d=[];m0(j);var m=J(l=b(d,l,"message")),P=l.length;d.push(m),p=b(d,p,"nonce");var R,L=0|F._crypto_box_noncebytes();p.length!==L&&l0(d,"invalid nonce length"),R=J(p),d.push(R),y=b(d,y,"publicKey");var O,n0=0|F._crypto_box_publickeybytes();y.length!==n0&&l0(d,"invalid publicKey length"),O=J(y),d.push(O),k=b(d,k,"privateKey");var Z,r0=0|F._crypto_box_secretkeybytes();k.length!==r0&&l0(d,"invalid privateKey length"),Z=J(k),d.push(Z);var _0=new g0(0|P),p0=_0.address;d.push(p0);var q0=new g0(0|F._crypto_box_macbytes()),a0=q0.address;if(d.push(a0),!(0|F._crypto_box_detached(p0,a0,m,P,0,R,O,Z))){var k0=D0({ciphertext:_0,mac:q0},j);return v0(d),k0}Y0(d,"invalid usage")}function Hu(l,p,y,k,j){var d=[];m0(j);var m=J(l=b(d,l,"message")),P=l.length;d.push(m),p=b(d,p,"nonce");var R,L=0|F._crypto_box_noncebytes();p.length!==L&&l0(d,"invalid nonce length"),R=J(p),d.push(R),y=b(d,y,"publicKey");var O,n0=0|F._crypto_box_publickeybytes();y.length!==n0&&l0(d,"invalid publicKey length"),O=J(y),d.push(O),k=b(d,k,"privateKey");var Z,r0=0|F._crypto_box_secretkeybytes();k.length!==r0&&l0(d,"invalid privateKey length"),Z=J(k),d.push(Z);var _0=new g0(P+F._crypto_box_macbytes()|0),p0=_0.address;if(d.push(p0),!(0|F._crypto_box_easy(p0,m,P,0,R,O,Z))){var q0=D0(_0,j);return v0(d),q0}Y0(d,"invalid usage")}function Ru(l,p,y,k){var j=[];m0(k);var d=J(l=b(j,l,"message")),m=l.length;j.push(d),p=b(j,p,"nonce");var P,R=0|F._crypto_box_noncebytes();p.length!==R&&l0(j,"invalid nonce length"),P=J(p),j.push(P),y=b(j,y,"sharedKey");var L,O=0|F._crypto_box_beforenmbytes();y.length!==O&&l0(j,"invalid sharedKey length"),L=J(y),j.push(L);var n0=new g0(m+F._crypto_box_macbytes()|0),Z=n0.address;if(j.push(Z),!(0|F._crypto_box_easy_afternm(Z,d,m,0,P,L))){var r0=D0(n0,k);return v0(j),r0}Y0(j,"invalid usage")}function Lu(l){var p=[];m0(l);var y=new g0(0|F._crypto_box_publickeybytes()),k=y.address;p.push(k);var j=new g0(0|F._crypto_box_secretkeybytes()),d=j.address;if(p.push(d),!(0|F._crypto_box_keypair(k,d))){var m={publicKey:D0(y,l),privateKey:D0(j,l),keyType:"x25519"};return v0(p),m}Y0(p,"internal error")}function Yu(l,p,y,k,j,d){var m=[];m0(d);var P=J(l=b(m,l,"ciphertext")),R=l.length;m.push(P),p=b(m,p,"mac");var L,O=0|F._crypto_box_macbytes();p.length!==O&&l0(m,"invalid mac length"),L=J(p),m.push(L),y=b(m,y,"nonce");var n0,Z=0|F._crypto_box_noncebytes();y.length!==Z&&l0(m,"invalid nonce length"),n0=J(y),m.push(n0),k=b(m,k,"publicKey");var r0,_0=0|F._crypto_box_publickeybytes();k.length!==_0&&l0(m,"invalid publicKey length"),r0=J(k),m.push(r0),j=b(m,j,"privateKey");var p0,q0=0|F._crypto_box_secretkeybytes();j.length!==q0&&l0(m,"invalid privateKey length"),p0=J(j),m.push(p0);var a0=new g0(0|R),k0=a0.address;if(m.push(k0),!(0|F._crypto_box_open_detached(k0,P,L,R,0,n0,r0,p0))){var S0=D0(a0,d);return v0(m),S0}Y0(m,"incorrect key pair for the given ciphertext")}function Nu(l,p,y,k,j){var d=[];m0(j),l=b(d,l,"ciphertext");var m,P=F._crypto_box_macbytes(),R=l.length;R<P&&l0(d,"ciphertext is too short"),m=J(l),d.push(m),p=b(d,p,"nonce");var L,O=0|F._crypto_box_noncebytes();p.length!==O&&l0(d,"invalid nonce 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m,P=0|F._crypto_core_ed25519_scalarbytes();p.length!==P&&l0(k,"invalid y length"),m=J(p),k.push(m);var R=new g0(0|F._crypto_core_ed25519_scalarbytes()),L=R.address;k.push(L),F._crypto_core_ed25519_scalar_add(L,j,m);var O=D0(R,y);return v0(k),O}function Vu(l,p){var y=[];m0(p),l=b(y,l,"s");var k,j=0|F._crypto_core_ed25519_scalarbytes();l.length!==j&&l0(y,"invalid s length"),k=J(l),y.push(k);var d=new g0(0|F._crypto_core_ed25519_scalarbytes()),m=d.address;y.push(m),F._crypto_core_ed25519_scalar_complement(m,k);var P=D0(d,p);return v0(y),P}function Wu(l,p){var y=[];m0(p),l=b(y,l,"s");var k,j=0|F._crypto_core_ed25519_scalarbytes();l.length!==j&&l0(y,"invalid s length"),k=J(l),y.push(k);var d=new g0(0|F._crypto_core_ed25519_scalarbytes()),m=d.address;if(y.push(m),!(0|F._crypto_core_ed25519_scalar_invert(m,k))){var P=D0(d,p);return v0(y),P}Y0(y,"invalid reciprocate")}function Ju(l,p,y){var k=[];m0(y),l=b(k,l,"x");var j,d=0|F._crypto_core_ed25519_scalarbytes();l.length!==d&&l0(k,"invalid x 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g0(0|F._crypto_core_ed25519_scalarbytes()),m=d.address;y.push(m),F._crypto_core_ed25519_scalar_reduce(m,k);var P=D0(d,p);return v0(y),P}function ty(l,p,y){var k=[];m0(y),l=b(k,l,"x");var j,d=0|F._crypto_core_ed25519_scalarbytes();l.length!==d&&l0(k,"invalid x length"),j=J(l),k.push(j),p=b(k,p,"y");var m,P=0|F._crypto_core_ed25519_scalarbytes();p.length!==P&&l0(k,"invalid y length"),m=J(p),k.push(m);var R=new g0(0|F._crypto_core_ed25519_scalarbytes()),L=R.address;k.push(L),F._crypto_core_ed25519_scalar_sub(L,j,m);var O=D0(R,y);return v0(k),O}function ny(l,p,y){var k=[];m0(y),l=b(k,l,"p");var j,d=0|F._crypto_core_ed25519_bytes();l.length!==d&&l0(k,"invalid p length"),j=J(l),k.push(j),p=b(k,p,"q");var m,P=0|F._crypto_core_ed25519_bytes();p.length!==P&&l0(k,"invalid q length"),m=J(p),k.push(m);var R=new g0(0|F._crypto_core_ed25519_bytes()),L=R.address;if(k.push(L),!(0|F._crypto_core_ed25519_sub(L,j,m))){var O=D0(R,y);return v0(k),O}Y0(k,"input is an invalid element")}function 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y,k,j;do{if(k=l.window_size-l.lookahead-l.strstart,l.strstart>=p+(p-Ie)&&(l.window.set(l.window.subarray(p,p+p-k),0),l.match_start-=p,l.strstart-=p,l.block_start-=p,l.insert>l.strstart&&(l.insert=l.strstart),uB(l),k+=p),l.strm.avail_in===0)break;if(y=xA(l.strm,l.window,l.strstart+l.lookahead,k),l.lookahead+=y,l.lookahead+l.insert>=O2)for(j=l.strstart-l.insert,l.ins_h=l.window[j],l.ins_h=lr(l,l.ins_h,l.window[j+1]);l.insert&&(l.ins_h=lr(l,l.ins_h,l.window[j+O2-1]),l.prev[j&l.w_mask]=l.head[l.ins_h],l.head[l.ins_h]=j,j++,l.insert--,!(l.lookahead+l.insert<O2)););}while(l.lookahead<Ie&&l.strm.avail_in!==0)},Xs=(l,p)=>{let y=l.pending_buf_size-5>l.w_size?l.w_size:l.pending_buf_size-5,k,j,d,m=0,P=l.strm.avail_in;do{if(k=65535,d=l.bi_valid+42>>3,l.strm.avail_out<d||(d=l.strm.avail_out-d,j=l.strstart-l.block_start,k>j+l.strm.avail_in&&(k=j+l.strm.avail_in),k>d&&(k=d),k<y&&(k===0&&p!==ne||p===hr||k!==j+l.strm.avail_in)))break;m=p===ne&&k===j+l.strm.avail_in?1:0,mA(l,0,0,m),l.pending_buf[l.pending-4]=k,l.pending_buf[l.pending-3]=k>>8,l.pending_buf[l.pending-2]=~k,l.pending_buf[l.pending-1]=~k>>8,$1(l.strm),j&&(j>k&&(j=k),l.strm.output.set(l.window.subarray(l.block_start,l.block_start+j),l.strm.next_out),l.strm.next_out+=j,l.strm.avail_out-=j,l.strm.total_out+=j,l.block_start+=j,k-=j),k&&(xA(l.strm,l.strm.output,l.strm.next_out,k),l.strm.next_out+=k,l.strm.avail_out-=k,l.strm.total_out+=k)}while(m===0);return 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y,k;for(;;){if(l.lookahead<Ie){if(ot(l),l.lookahead<Ie&&p===hr)return Y1;if(l.lookahead===0)break}if(y=0,l.lookahead>=O2&&(l.ins_h=lr(l,l.ins_h,l.window[l.strstart+O2-1]),y=l.prev[l.strstart&l.w_mask]=l.head[l.ins_h],l.head[l.ins_h]=l.strstart),y!==0&&l.strstart-y<=l.w_size-Ie&&(l.match_length=Os(l,y)),l.match_length>=O2)if(k=sr(l,l.strstart-l.match_start,l.match_length-O2),l.lookahead-=l.match_length,l.match_length<=l.max_lazy_match&&l.lookahead>=O2){l.match_length--;do l.strstart++,l.ins_h=lr(l,l.ins_h,l.window[l.strstart+O2-1]),y=l.prev[l.strstart&l.w_mask]=l.head[l.ins_h],l.head[l.ins_h]=l.strstart;while(--l.match_length!==0);l.strstart++}else l.strstart+=l.match_length,l.match_length=0,l.ins_h=l.window[l.strstart],l.ins_h=lr(l,l.ins_h,l.window[l.strstart+1]);else k=sr(l,0,l.window[l.strstart]),l.lookahead--,l.strstart++;if(k&&(V1(l,!1),l.strm.avail_out===0))return Y1}return 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Y1;if(l.lookahead===0)break}if(l.match_length=0,l.lookahead>=O2&&l.strstart>0&&(j=l.strstart-1,k=m[j],k===m[++j]&&k===m[++j]&&k===m[++j])){d=l.strstart+or;do;while(k===m[++j]&&k===m[++j]&&k===m[++j]&&k===m[++j]&&k===m[++j]&&k===m[++j]&&k===m[++j]&&k===m[++j]&&j<d);l.match_length=or-(d-j),l.match_length>l.lookahead&&(l.match_length=l.lookahead)}if(l.match_length>=O2?(y=sr(l,1,l.match_length-O2),l.lookahead-=l.match_length,l.strstart+=l.match_length,l.match_length=0):(y=sr(l,0,l.window[l.strstart]),l.lookahead--,l.strstart++),y&&(V1(l,!1),l.strm.avail_out===0))return Y1}return l.insert=0,p===ne?(V1(l,!0),l.strm.avail_out===0?Er:yt):l.sym_next&&(V1(l,!1),l.strm.avail_out===0)?Y1:ut},aB=(l,p)=>{let y;for(;;){if(l.lookahead===0&&(ot(l),l.lookahead===0)){if(p===hr)return Y1;break}if(l.match_length=0,y=sr(l,0,l.window[l.strstart]),l.lookahead--,l.strstart++,y&&(V1(l,!1),l.strm.avail_out===0))return Y1}return l.insert=0,p===ne?(V1(l,!0),l.strm.avail_out===0?Er:yt):l.sym_next&&(V1(l,!1),l.strm.avail_out===0)?Y1:ut};function me(l,p,y,k,j){this.good_length=l,this.max_lazy=p,this.nice_length=y,this.max_chain=k,this.func=j}const Yt=[new me(0,0,0,0,Xs),new me(4,4,8,4,eA),new me(4,5,16,8,eA),new me(4,6,32,32,eA),new me(4,4,16,16,Jr),new me(8,16,32,32,Jr),new me(8,16,128,128,Jr),new me(8,32,128,256,Jr),new me(32,128,258,1024,Jr),new me(32,258,258,4096,Jr)],BB=l=>{l.window_size=2*l.w_size,ir(l.head),l.max_lazy_match=Yt[l.level].max_lazy,l.good_match=Yt[l.level].good_length,l.nice_match=Yt[l.level].nice_length,l.max_chain_length=Yt[l.level].max_chain,l.strstart=0,l.block_start=0,l.lookahead=0,l.insert=0,l.match_length=l.prev_length=O2-1,l.match_available=0,l.ins_h=0};function pB(){this.strm=null,this.status=0,this.pending_buf=null,this.pending_buf_size=0,this.pending_out=0,this.pending=0,this.wrap=0,this.gzhead=null,this.gzindex=0,this.method=A6,this.last_flush=-1,this.w_size=0,this.w_bits=0,this.w_mask=0,this.window=null,this.window_size=0,this.prev=null,this.head=null,this.ins_h=0,this.hash_size=0,this.hash_bits=0,this.hash_mask=0,this.hash_shift=0,this.block_start=0,this.match_length=0,this.prev_match=0,this.match_available=0,this.strstart=0,this.match_start=0,this.lookahead=0,this.prev_length=0,this.max_chain_length=0,this.max_lazy_match=0,this.level=0,this.strategy=0,this.good_match=0,this.nice_match=0,this.dyn_ltree=new Uint16Array(oB*2),this.dyn_dtree=new Uint16Array((2*iB+1)*2),this.bl_tree=new Uint16Array((2*_B+1)*2),ir(this.dyn_ltree),ir(this.dyn_dtree),ir(this.bl_tree),this.l_desc=null,this.d_desc=null,this.bl_desc=null,this.bl_count=new Uint16Array(sB+1),this.heap=new 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j[d++]=1<<24|64<<16|0,j[d++]=1<<24|64<<16|0,P.bits=1,0;for(n0=1;n0<Z&&U0[n0]===0;n0++);for(r0<n0&&(r0=n0),q0=1,L=1;L<=br;L++)if(q0<<=1,q0-=U0[L],q0<0)return-1;if(q0>0&&(l===oo||Z!==1))return-1;for(J0[1]=0,L=1;L<br;L++)J0[L+1]=J0[L]+U0[L];for(O=0;O<k;O++)p[y+O]!==0&&(m[J0[p[y+O]]++]=O);if(l===oo?(u2=g2=m,G0=20):l===rA?(u2=tp,g2=np,G0=257):(u2=Ap,g2=ip,G0=0),k0=0,O=0,L=n0,t2=d,_0=r0,p0=0,A2=-1,a0=1<<r0,p2=a0-1,l===rA&&a0>io||l===so&&a0>_o)return 1;for(;;){M2=L-p0,m[O]+1<G0?(T2=0,D2=m[O]):m[O]>=G0?(T2=g2[m[O]-G0],D2=u2[m[O]-G0]):(T2=96,D2=0),S0=1<<L-p0,C0=1<<_0,n0=C0;do C0-=S0,j[t2+(k0>>p0)+C0]=M2<<24|T2<<16|D2|0;while(C0!==0);for(S0=1<<L-1;k0&S0;)S0>>=1;if(S0!==0?(k0&=S0-1,k0+=S0):k0=0,O++,--U0[L]===0){if(L===Z)break;L=p[y+m[O]]}if(L>r0&&(k0&p2)!==A2){for(p0===0&&(p0=r0),t2+=n0,_0=L-p0,q0=1<<_0;_0+p0<Z&&(q0-=U0[_0+p0],!(q0<=0));)_0++,q0<<=1;if(a0+=1<<_0,l===rA&&a0>io||l===so&&a0>_o)return 1;A2=k0&p2,j[A2]=r0<<24|_0<<16|t2-d|0}}return k0!==0&&(j[t2+k0]=L-p0<<24|64<<16|0),P.bits=r0,0};var Ot=_p;const op=0,Vs=1,Ws=2,{Z_FINISH:ho,Z_BLOCK:sp,Z_TREES:Fn,Z_OK:Hr,Z_STREAM_END:hp,Z_NEED_DICT:lp,Z_STREAM_ERROR:_e,Z_DATA_ERROR:Js,Z_MEM_ERROR:bs,Z_BUF_ERROR:up,Z_DEFLATED:lo}=Jt,_6=16180,uo=16181,yo=16182,fo=16183,ao=16184,Bo=16185,po=16186,co=16187,ko=16188,vo=16189,Vn=16190,Qe=16191,tA=16192,jo=16193,nA=16194,go=16195,wo=16196,mo=16197,qo=16198,Qn=16199,On=16200,To=16201,So=16202,Po=16203,Io=16204,xo=16205,AA=16206,Do=16207,Co=16208,i1=16209,e8=16210,r8=16211,yp=852,fp=592,ap=15,Bp=ap,Mo=l=>(l>>>24&255)+(l>>>8&65280)+((l&65280)<<8)+((l&255)<<24);function pp(){this.strm=null,this.mode=0,this.last=!1,this.wrap=0,this.havedict=!1,this.flags=0,this.dmax=0,this.check=0,this.total=0,this.head=null,this.wbits=0,this.wsize=0,this.whave=0,this.wnext=0,this.window=null,this.hold=0,this.bits=0,this.length=0,this.offset=0,this.extra=0,this.lencode=null,this.distcode=null,this.lenbits=0,this.distbits=0,this.ncode=0,this.nlen=0,this.ndist=0,this.have=0,this.next=null,this.lens=new Uint16Array(320),this.work=new Uint16Array(288),this.lendyn=null,this.distdyn=null,this.sane=0,this.back=0,this.was=0}const Lr=l=>{if(!l)return 1;const p=l.state;return!p||p.strm!==l||p.mode<_6||p.mode>r8?1:0},t8=l=>{if(Lr(l))return _e;const p=l.state;return l.total_in=l.total_out=p.total=0,l.msg="",p.wrap&&(l.adler=p.wrap&1),p.mode=_6,p.last=0,p.havedict=0,p.flags=-1,p.dmax=32768,p.head=null,p.hold=0,p.bits=0,p.lencode=p.lendyn=new Int32Array(yp),p.distcode=p.distdyn=new Int32Array(fp),p.sane=1,p.back=-1,Hr},n8=l=>{if(Lr(l))return _e;const p=l.state;return p.wsize=0,p.whave=0,p.wnext=0,t8(l)},A8=(l,p)=>{let y;if(Lr(l))return _e;const k=l.state;return p<0?(y=0,p=-p):(y=(p>>4)+5,p<48&&(p&=15)),p&&(p<8||p>15)?_e:(k.window!==null&&k.wbits!==p&&(k.window=null),k.wrap=y,k.wbits=p,n8(l))},i8=(l,p)=>{if(!l)return _e;const y=new pp;l.state=y,y.strm=l,y.window=null,y.mode=_6;const k=A8(l,p);return k!==Hr&&(l.state=null),k},cp=l=>i8(l,Bp);let Eo=!0,iA,_A;const kp=l=>{if(Eo){iA=new Int32Array(512),_A=new Int32Array(32);let p=0;for(;p<144;)l.lens[p++]=8;for(;p<256;)l.lens[p++]=9;for(;p<280;)l.lens[p++]=7;for(;p<288;)l.lens[p++]=8;for(Ot(Vs,l.lens,0,288,iA,0,l.work,{bits:9}),p=0;p<32;)l.lens[p++]=5;Ot(Ws,l.lens,0,32,_A,0,l.work,{bits:5}),Eo=!1}l.lencode=iA,l.lenbits=9,l.distcode=_A,l.distbits=5},_8=(l,p,y,k)=>{let j;const d=l.state;return d.window===null&&(d.wsize=1<<d.wbits,d.wnext=0,d.whave=0,d.window=new Uint8Array(d.wsize)),k>=d.wsize?(d.window.set(p.subarray(y-d.wsize,y),0),d.wnext=0,d.whave=d.wsize):(j=d.wsize-d.wnext,j>k&&(j=k),d.window.set(p.subarray(y-k,y-k+j),d.wnext),k-=j,k?(d.window.set(p.subarray(y-k,y),0),d.wnext=k,d.whave=d.wsize):(d.wnext+=j,d.wnext===d.wsize&&(d.wnext=0),d.whave<d.wsize&&(d.whave+=j))),0},vp=(l,p)=>{let y,k,j,d,m,P,R,L,O,n0,Z,r0,_0,p0,q0=0,a0,k0,S0,C0,A2,p2,t2,u2;const G0=new Uint8Array(4);let U0,J0;const g2=new Uint8Array([16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15]);if(Lr(l)||!l.output||!l.input&&l.avail_in!==0)return _e;y=l.state,y.mode===Qe&&(y.mode=tA),m=l.next_out,j=l.output,R=l.avail_out,d=l.next_in,k=l.input,P=l.avail_in,L=y.hold,O=y.bits,n0=P,Z=R,u2=Hr;e:for(;;)switch(y.mode){case _6:if(y.wrap===0){y.mode=tA;break}for(;O<16;){if(P===0)break e;P--,L+=k[d++]<<O,O+=8}if(y.wrap&2&&L===35615){y.wbits===0&&(y.wbits=15),y.check=0,G0[0]=L&255,G0[1]=L>>>8&255,y.check=S1(y.check,G0,2,0),L=0,O=0,y.mode=uo;break}if(y.head&&(y.head.done=!1),!(y.wrap&1)||(((L&255)<<8)+(L>>8))%31){l.msg="incorrect header check",y.mode=i1;break}if((L&15)!==lo){l.msg="unknown compression method",y.mode=i1;break}if(L>>>=4,O-=4,t2=(L&15)+8,y.wbits===0&&(y.wbits=t2),t2>15||t2>y.wbits){l.msg="invalid window size",y.mode=i1;break}y.dmax=1<<y.wbits,y.flags=0,l.adler=y.check=1,y.mode=L&512?vo:Qe,L=0,O=0;break;case uo:for(;O<16;){if(P===0)break e;P--,L+=k[d++]<<O,O+=8}if(y.flags=L,(y.flags&255)!==lo){l.msg="unknown compression method",y.mode=i1;break}if(y.flags&57344){l.msg="unknown header flags set",y.mode=i1;break}y.head&&(y.head.text=L>>8&1),y.flags&512&&y.wrap&4&&(G0[0]=L&255,G0[1]=L>>>8&255,y.check=S1(y.check,G0,2,0)),L=0,O=0,y.mode=yo;case yo:for(;O<32;){if(P===0)break e;P--,L+=k[d++]<<O,O+=8}y.head&&(y.head.time=L),y.flags&512&&y.wrap&4&&(G0[0]=L&255,G0[1]=L>>>8&255,G0[2]=L>>>16&255,G0[3]=L>>>24&255,y.check=S1(y.check,G0,4,0)),L=0,O=0,y.mode=fo;case fo:for(;O<16;){if(P===0)break e;P--,L+=k[d++]<<O,O+=8}y.head&&(y.head.xflags=L&255,y.head.os=L>>8),y.flags&512&&y.wrap&4&&(G0[0]=L&255,G0[1]=L>>>8&255,y.check=S1(y.check,G0,2,0)),L=0,O=0,y.mode=ao;case ao:if(y.flags&1024){for(;O<16;){if(P===0)break e;P--,L+=k[d++]<<O,O+=8}y.length=L,y.head&&(y.head.extra_len=L),y.flags&512&&y.wrap&4&&(G0[0]=L&255,G0[1]=L>>>8&255,y.check=S1(y.check,G0,2,0)),L=0,O=0}else y.head&&(y.head.extra=null);y.mode=Bo;case Bo:if(y.flags&1024&&(r0=y.length,r0>P&&(r0=P),r0&&(y.head&&(t2=y.head.extra_len-y.length,y.head.extra||(y.head.extra=new Uint8Array(y.head.extra_len)),y.head.extra.set(k.subarray(d,d+r0),t2)),y.flags&512&&y.wrap&4&&(y.check=S1(y.check,k,r0,d)),P-=r0,d+=r0,y.length-=r0),y.length))break e;y.length=0,y.mode=po;case po:if(y.flags&2048){if(P===0)break e;r0=0;do t2=k[d+r0++],y.head&&t2&&y.length<65536&&(y.head.name+=String.fromCharCode(t2));while(t2&&r0<P);if(y.flags&512&&y.wrap&4&&(y.check=S1(y.check,k,r0,d)),P-=r0,d+=r0,t2)break e}else y.head&&(y.head.name=null);y.length=0,y.mode=co;case co:if(y.flags&4096){if(P===0)break e;r0=0;do t2=k[d+r0++],y.head&&t2&&y.length<65536&&(y.head.comment+=String.fromCharCode(t2));while(t2&&r0<P);if(y.flags&512&&y.wrap&4&&(y.check=S1(y.check,k,r0,d)),P-=r0,d+=r0,t2)break e}else y.head&&(y.head.comment=null);y.mode=ko;case ko:if(y.flags&512){for(;O<16;){if(P===0)break e;P--,L+=k[d++]<<O,O+=8}if(y.wrap&4&&L!==(y.check&65535)){l.msg="header crc mismatch",y.mode=i1;break}L=0,O=0}y.head&&(y.head.hcrc=y.flags>>9&1,y.head.done=!0),l.adler=y.check=0,y.mode=Qe;break;case vo:for(;O<32;){if(P===0)break e;P--,L+=k[d++]<<O,O+=8}l.adler=y.check=Mo(L),L=0,O=0,y.mode=Vn;case Vn:if(y.havedict===0)return l.next_out=m,l.avail_out=R,l.next_in=d,l.avail_in=P,y.hold=L,y.bits=O,lp;l.adler=y.check=1,y.mode=Qe;case Qe:if(p===sp||p===Fn)break e;case tA:if(y.last){L>>>=O&7,O-=O&7,y.mode=AA;break}for(;O<3;){if(P===0)break e;P--,L+=k[d++]<<O,O+=8}switch(y.last=L&1,L>>>=1,O-=1,L&3){case 0:y.mode=jo;break;case 1:if(kp(y),y.mode=Qn,p===Fn){L>>>=2,O-=2;break e}break;case 2:y.mode=wo;break;case 3:l.msg="invalid block type",y.mode=i1}L>>>=2,O-=2;break;case jo:for(L>>>=O&7,O-=O&7;O<32;){if(P===0)break e;P--,L+=k[d++]<<O,O+=8}if((L&65535)!==(L>>>16^65535)){l.msg="invalid stored block lengths",y.mode=i1;break}if(y.length=L&65535,L=0,O=0,y.mode=nA,p===Fn)break e;case nA:y.mode=go;case go:if(r0=y.length,r0){if(r0>P&&(r0=P),r0>R&&(r0=R),r0===0)break e;j.set(k.subarray(d,d+r0),m),P-=r0,d+=r0,R-=r0,m+=r0,y.length-=r0;break}y.mode=Qe;break;case wo:for(;O<14;){if(P===0)break e;P--,L+=k[d++]<<O,O+=8}if(y.nlen=(L&31)+257,L>>>=5,O-=5,y.ndist=(L&31)+1,L>>>=5,O-=5,y.ncode=(L&15)+4,L>>>=4,O-=4,y.nlen>286||y.ndist>30){l.msg="too many length or distance symbols",y.mode=i1;break}y.have=0,y.mode=mo;case mo:for(;y.have<y.ncode;){for(;O<3;){if(P===0)break e;P--,L+=k[d++]<<O,O+=8}y.lens[g2[y.have++]]=L&7,L>>>=3,O-=3}for(;y.have<19;)y.lens[g2[y.have++]]=0;if(y.lencode=y.lendyn,y.lenbits=7,U0={bits:y.lenbits},u2=Ot(op,y.lens,0,19,y.lencode,0,y.work,U0),y.lenbits=U0.bits,u2){l.msg="invalid code lengths set",y.mode=i1;break}y.have=0,y.mode=qo;case qo:for(;y.have<y.nlen+y.ndist;){for(;q0=y.lencode[L&(1<<y.lenbits)-1],a0=q0>>>24,k0=q0>>>16&255,S0=q0&65535,!(a0<=O);){if(P===0)break e;P--,L+=k[d++]<<O,O+=8}if(S0<16)L>>>=a0,O-=a0,y.lens[y.have++]=S0;else{if(S0===16){for(J0=a0+2;O<J0;){if(P===0)break e;P--,L+=k[d++]<<O,O+=8}if(L>>>=a0,O-=a0,y.have===0){l.msg="invalid bit length repeat",y.mode=i1;break}t2=y.lens[y.have-1],r0=3+(L&3),L>>>=2,O-=2}else if(S0===17){for(J0=a0+3;O<J0;){if(P===0)break e;P--,L+=k[d++]<<O,O+=8}L>>>=a0,O-=a0,t2=0,r0=3+(L&7),L>>>=3,O-=3}else{for(J0=a0+7;O<J0;){if(P===0)break e;P--,L+=k[d++]<<O,O+=8}L>>>=a0,O-=a0,t2=0,r0=11+(L&127),L>>>=7,O-=7}if(y.have+r0>y.nlen+y.ndist){l.msg="invalid bit length repeat",y.mode=i1;break}for(;r0--;)y.lens[y.have++]=t2}}if(y.mode===i1)break;if(y.lens[256]===0){l.msg="invalid code -- missing end-of-block",y.mode=i1;break}if(y.lenbits=9,U0={bits:y.lenbits},u2=Ot(Vs,y.lens,0,y.nlen,y.lencode,0,y.work,U0),y.lenbits=U0.bits,u2){l.msg="invalid literal/lengths set",y.mode=i1;break}if(y.distbits=6,y.distcode=y.distdyn,U0={bits:y.distbits},u2=Ot(Ws,y.lens,y.nlen,y.ndist,y.distcode,0,y.work,U0),y.distbits=U0.bits,u2){l.msg="invalid distances set",y.mode=i1;break}if(y.mode=Qn,p===Fn)break e;case Qn:y.mode=On;case On:if(P>=6&&R>=258){l.next_out=m,l.avail_out=R,l.next_in=d,l.avail_in=P,y.hold=L,y.bits=O,rp(l,Z),m=l.next_out,j=l.output,R=l.avail_out,d=l.next_in,k=l.input,P=l.avail_in,L=y.hold,O=y.bits,y.mode===Qe&&(y.back=-1);break}for(y.back=0;q0=y.lencode[L&(1<<y.lenbits)-1],a0=q0>>>24,k0=q0>>>16&255,S0=q0&65535,!(a0<=O);){if(P===0)break e;P--,L+=k[d++]<<O,O+=8}if(k0&&(k0&240)===0){for(C0=a0,A2=k0,p2=S0;q0=y.lencode[p2+((L&(1<<C0+A2)-1)>>C0)],a0=q0>>>24,k0=q0>>>16&255,S0=q0&65535,!(C0+a0<=O);){if(P===0)break e;P--,L+=k[d++]<<O,O+=8}L>>>=C0,O-=C0,y.back+=C0}if(L>>>=a0,O-=a0,y.back+=a0,y.length=S0,k0===0){y.mode=xo;break}if(k0&32){y.back=-1,y.mode=Qe;break}if(k0&64){l.msg="invalid literal/length code",y.mode=i1;break}y.extra=k0&15,y.mode=To;case To:if(y.extra){for(J0=y.extra;O<J0;){if(P===0)break e;P--,L+=k[d++]<<O,O+=8}y.length+=L&(1<<y.extra)-1,L>>>=y.extra,O-=y.extra,y.back+=y.extra}y.was=y.length,y.mode=So;case So:for(;q0=y.distcode[L&(1<<y.distbits)-1],a0=q0>>>24,k0=q0>>>16&255,S0=q0&65535,!(a0<=O);){if(P===0)break e;P--,L+=k[d++]<<O,O+=8}if((k0&240)===0){for(C0=a0,A2=k0,p2=S0;q0=y.distcode[p2+((L&(1<<C0+A2)-1)>>C0)],a0=q0>>>24,k0=q0>>>16&255,S0=q0&65535,!(C0+a0<=O);){if(P===0)break e;P--,L+=k[d++]<<O,O+=8}L>>>=C0,O-=C0,y.back+=C0}if(L>>>=a0,O-=a0,y.back+=a0,k0&64){l.msg="invalid distance code",y.mode=i1;break}y.offset=S0,y.extra=k0&15,y.mode=Po;case Po:if(y.extra){for(J0=y.extra;O<J0;){if(P===0)break e;P--,L+=k[d++]<<O,O+=8}y.offset+=L&(1<<y.extra)-1,L>>>=y.extra,O-=y.extra,y.back+=y.extra}if(y.offset>y.dmax){l.msg="invalid distance too far back",y.mode=i1;break}y.mode=Io;case Io:if(R===0)break e;if(r0=Z-R,y.offset>r0){if(r0=y.offset-r0,r0>y.whave&&y.sane){l.msg="invalid distance too far back",y.mode=i1;break}r0>y.wnext?(r0-=y.wnext,_0=y.wsize-r0):_0=y.wnext-r0,r0>y.length&&(r0=y.length),p0=y.window}else p0=j,_0=m-y.offset,r0=y.length;r0>R&&(r0=R),R-=r0,y.length-=r0;do 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Qc{constructor(p,y,k,j=!1,d=24){if(super(),this.pos=0,this.posOut=0,this.finished=!1,this.destroyed=!1,this.enableXOF=!1,this.blockLen=p,this.suffix=y,this.outputLen=k,this.enableXOF=j,this.rounds=d,HA(k),!(0<p&&p<200))throw new Error("only keccak-f1600 function is supported");this.state=new Uint8Array(200),this.state32=Hc(this.state)}clone(){return this._cloneInto()}keccak(){Xo(this.state32),Jc(this.state32,this.rounds),Xo(this.state32),this.posOut=0,this.pos=0}update(p){Oo(this),p=oi(p),Rr(p);const{blockLen:y,state:k}=this,j=p.length;for(let d=0;d<j;){const m=Math.min(y-this.pos,j-d);for(let P=0;P<m;P++)k[this.pos++]^=p[d++];this.pos===y&&this.keccak()}return this}finish(){if(this.finished)return;this.finished=!0;const{state:p,suffix:y,pos:k,blockLen:j}=this;p[k]^=y,(y&128)!==0&&k===j-1&&this.keccak(),p[j-1]^=128,this.keccak()}writeInto(p){Oo(this,!1),Rr(p),this.finish();const y=this.state,{blockLen:k}=this;for(let j=0,d=p.length;j<d;){this.posOut>=k&&this.keccak();const 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YA(l,p=""){if(typeof l!="boolean"){const y=p&&`"${p}"`;throw new Error(y+"expected boolean, got type="+typeof l)}return l}function zn(l,p,y=""){const k=o6(l),j=l?.length,d=p!==void 0;if(!k||d&&j!==p){const m=y&&`"${y}" `,P=d?` of length ${p}`:"",R=k?`length=${j}`:`type=${typeof l}`;throw new Error(m+"expected Uint8Array"+P+", got "+R)}return l}function w8(l){if(typeof l!="string")throw new Error("hex string expected, got "+typeof l);return l===""?hi:BigInt("0x"+l)}function r9(l){return w8(_i(l))}function Wn(l){return Rr(l),w8(_i(Uint8Array.from(l).reverse()))}function m8(l,p){return k8(l.toString(16).padStart(p*2,"0"))}function t9(l,p){return m8(l,p).reverse()}function nr(l,p,y){let k;if(typeof p=="string")try{k=k8(p)}catch(d){throw new Error(l+" must be hex string or Uint8Array, cause: "+d)}else if(o6(p))k=Uint8Array.from(p);else throw new Error(l+" must be hex string or Uint8Array");const j=k.length;if(typeof y=="number"&&j!==y)throw new Error(l+" of length "+y+" expected, got "+j);return k}function zo(l){return Uint8Array.from(l)}function n9(l){return Uint8Array.from(l,(p,y)=>{const k=p.charCodeAt(0);if(p.length!==1||k>127)throw new Error(`string contains non-ASCII character "${l[y]}" with code ${k} at position ${y}`);return k})}const lA=l=>typeof l=="bigint"&&hi<=l;function A9(l,p,y){return lA(l)&&lA(p)&&lA(y)&&p<=l&&l<y}function Zo(l,p,y,k){if(!A9(p,y,k))throw new Error("expected valid "+l+": "+y+" <= n < "+k+", got "+p)}function i9(l){let p;for(p=0;l>hi;l>>=LA,p+=1);return p}const li=l=>(LA<<BigInt(l))-LA;function ui(l,p,y={}){if(!l||typeof l!="object")throw new Error("expected valid options object");function k(j,d,m){const P=l[j];if(m&&P===void 0)return;const R=typeof P;if(R!==d||P===null)throw new Error(`param "${j}" is invalid: expected ${d}, got ${R}`)}Object.entries(p).forEach(([j,d])=>k(j,d,!1)),Object.entries(y).forEach(([j,d])=>k(j,d,!0))}function $o(l){const p=new WeakMap;return(y,...k)=>{const j=p.get(y);if(j!==void 0)return j;const d=l(y,...k);return p.set(y,d),d}}/*! noble-curves - MIT License (c) 2022 Paul Miller (paulmillr.com) */const X1=BigInt(0),W1=BigInt(1),Dr=BigInt(2),q8=BigInt(3),T8=BigInt(4),S8=BigInt(5),_9=BigInt(7),P8=BigInt(8),o9=BigInt(9),I8=BigInt(16);function E1(l,p){const y=l%p;return y>=X1?y:p+y}function ke(l,p,y){let k=l;for(;p-- >X1;)k*=k,k%=y;return k}function Vo(l,p){if(l===X1)throw new Error("invert: expected non-zero number");if(p<=X1)throw new Error("invert: expected positive modulus, got "+p);let y=E1(l,p),k=p,j=X1,d=W1;for(;y!==X1;){const P=k/y,R=k%y,L=j-d*P;k=y,y=R,j=d,d=L}if(k!==W1)throw new Error("invert: does not exist");return E1(j,p)}function yi(l,p,y){if(!l.eql(l.sqr(p),y))throw new Error("Cannot find square root")}function x8(l,p){const y=(l.ORDER+W1)/T8,k=l.pow(p,y);return yi(l,k,p),k}function s9(l,p){const y=(l.ORDER-S8)/P8,k=l.mul(p,Dr),j=l.pow(k,y),d=l.mul(p,j),m=l.mul(l.mul(d,Dr),j),P=l.mul(d,l.sub(m,l.ONE));return yi(l,P,p),P}function h9(l){const p=ft(l),y=D8(l),k=y(p,p.neg(p.ONE)),j=y(p,k),d=y(p,p.neg(k)),m=(l+_9)/I8;return(P,R)=>{let L=P.pow(R,m),O=P.mul(L,k);const n0=P.mul(L,j),Z=P.mul(L,d),r0=P.eql(P.sqr(O),R),_0=P.eql(P.sqr(n0),R);L=P.cmov(L,O,r0),O=P.cmov(Z,n0,_0);const p0=P.eql(P.sqr(O),R),q0=P.cmov(L,O,p0);return yi(P,q0,R),q0}}function D8(l){if(l<q8)throw new Error("sqrt is not defined for small field");let p=l-W1,y=0;for(;p%Dr===X1;)p/=Dr,y++;let k=Dr;const j=ft(l);for(;Wo(j,k)===1;)if(k++>1e3)throw new Error("Cannot find square root: probably non-prime P");if(y===1)return x8;let d=j.pow(k,p);const m=(p+W1)/Dr;return function(R,L){if(R.is0(L))return L;if(Wo(R,L)!==1)throw new Error("Cannot find square root");let O=y,n0=R.mul(R.ONE,d),Z=R.pow(L,p),r0=R.pow(L,m);for(;!R.eql(Z,R.ONE);){if(R.is0(Z))return R.ZERO;let _0=1,p0=R.sqr(Z);for(;!R.eql(p0,R.ONE);)if(_0++,p0=R.sqr(p0),_0===O)throw new Error("Cannot find square root");const q0=W1<<BigInt(O-_0-1),a0=R.pow(n0,q0);O=_0,n0=R.sqr(a0),Z=R.mul(Z,n0),r0=R.mul(r0,a0)}return r0}}function l9(l){return l%T8===q8?x8:l%P8===S8?s9:l%I8===o9?h9(l):D8(l)}const u9=["create","isValid","is0","neg","inv","sqrt","sqr","eql","add","sub","mul","pow","div","addN","subN","mulN","sqrN"];function y9(l){const p={ORDER:"bigint",MASK:"bigint",BYTES:"number",BITS:"number"},y=u9.reduce((k,j)=>(k[j]="function",k),p);return ui(l,y),l}function f9(l,p,y){if(y<X1)throw new Error("invalid exponent, negatives unsupported");if(y===X1)return l.ONE;if(y===W1)return p;let k=l.ONE,j=p;for(;y>X1;)y&W1&&(k=l.mul(k,j)),j=l.sqr(j),y>>=W1;return k}function C8(l,p,y=!1){const k=new Array(p.length).fill(y?l.ZERO:void 0),j=p.reduce((m,P,R)=>l.is0(P)?m:(k[R]=m,l.mul(m,P)),l.ONE),d=l.inv(j);return p.reduceRight((m,P,R)=>l.is0(P)?m:(k[R]=l.mul(m,k[R]),l.mul(m,P)),d),k}function Wo(l,p){const y=(l.ORDER-W1)/Dr,k=l.pow(p,y),j=l.eql(k,l.ONE),d=l.eql(k,l.ZERO),m=l.eql(k,l.neg(l.ONE));if(!j&&!d&&!m)throw new Error("invalid Legendre symbol result");return j?1:d?0:-1}function a9(l,p){p!==void 0&&HA(p);const y=p!==void 0?p:l.toString(2).length,k=Math.ceil(y/8);return{nBitLength:y,nByteLength:k}}function ft(l,p,y=!1,k={}){if(l<=X1)throw new Error("invalid field: expected ORDER > 0, got "+l);let j,d,m=!1,P;if(typeof p=="object"&&p!=null){if(k.sqrt||y)throw new Error("cannot specify opts in two arguments");const Z=p;Z.BITS&&(j=Z.BITS),Z.sqrt&&(d=Z.sqrt),typeof Z.isLE=="boolean"&&(y=Z.isLE),typeof Z.modFromBytes=="boolean"&&(m=Z.modFromBytes),P=Z.allowedLengths}else typeof p=="number"&&(j=p),k.sqrt&&(d=k.sqrt);const{nBitLength:R,nByteLength:L}=a9(l,j);if(L>2048)throw new Error("invalid field: expected ORDER of <= 2048 bytes");let O;const n0=Object.freeze({ORDER:l,isLE:y,BITS:R,BYTES:L,MASK:li(R),ZERO:X1,ONE:W1,allowedLengths:P,create:Z=>E1(Z,l),isValid:Z=>{if(typeof Z!="bigint")throw new Error("invalid field element: expected bigint, got "+typeof Z);return X1<=Z&&Z<l},is0:Z=>Z===X1,isValidNot0:Z=>!n0.is0(Z)&&n0.isValid(Z),isOdd:Z=>(Z&W1)===W1,neg:Z=>E1(-Z,l),eql:(Z,r0)=>Z===r0,sqr:Z=>E1(Z*Z,l),add:(Z,r0)=>E1(Z+r0,l),sub:(Z,r0)=>E1(Z-r0,l),mul:(Z,r0)=>E1(Z*r0,l),pow:(Z,r0)=>f9(n0,Z,r0),div:(Z,r0)=>E1(Z*Vo(r0,l),l),sqrN:Z=>Z*Z,addN:(Z,r0)=>Z+r0,subN:(Z,r0)=>Z-r0,mulN:(Z,r0)=>Z*r0,inv:Z=>Vo(Z,l),sqrt:d||(Z=>(O||(O=l9(l)),O(n0,Z))),toBytes:Z=>y?t9(Z,L):m8(Z,L),fromBytes:(Z,r0=!0)=>{if(P){if(!P.includes(Z.length)||Z.length>L)throw new Error("Field.fromBytes: expected "+P+" bytes, got "+Z.length);const p0=new Uint8Array(L);p0.set(Z,y?0:p0.length-Z.length),Z=p0}if(Z.length!==L)throw new Error("Field.fromBytes: expected "+L+" bytes, got "+Z.length);let _0=y?Wn(Z):r9(Z);if(m&&(_0=E1(_0,l)),!r0&&!n0.isValid(_0))throw new Error("invalid field element: outside of range 0..ORDER");return _0},invertBatch:Z=>C8(n0,Z),cmov:(Z,r0,_0)=>_0?r0:Z});return Object.freeze(n0)}/*! noble-curves - MIT License (c) 2022 Paul Miller (paulmillr.com) */const Jn=BigInt(0),NA=BigInt(1);function Jo(l,p){const y=p.negate();return l?y:p}function Gn(l,p){const y=C8(l.Fp,p.map(k=>k.Z));return p.map((k,j)=>l.fromAffine(k.toAffine(y[j])))}function M8(l,p){if(!Number.isSafeInteger(l)||l<=0||l>p)throw new Error("invalid window size, expected [1.."+p+"], got W="+l)}function uA(l,p){M8(l,p);const y=Math.ceil(p/l)+1,k=2**(l-1),j=2**l,d=li(l),m=BigInt(l);return{windows:y,windowSize:k,mask:d,maxNumber:j,shiftBy:m}}function bo(l,p,y){const{windowSize:k,mask:j,maxNumber:d,shiftBy:m}=y;let P=Number(l&j),R=l>>m;P>k&&(P-=d,R+=NA);const L=p*k,O=L+Math.abs(P)-1,n0=P===0,Z=P<0,r0=p%2!==0;return{nextN:R,offset:O,isZero:n0,isNeg:Z,isNegF:r0,offsetF:L}}function B9(l,p){if(!Array.isArray(l))throw new Error("array expected");l.forEach((y,k)=>{if(!(y instanceof p))throw new Error("invalid point at index "+k)})}function p9(l,p){if(!Array.isArray(l))throw new Error("array of scalars expected");l.forEach((y,k)=>{if(!p.isValid(y))throw new Error("invalid scalar at index "+k)})}const yA=new WeakMap,E8=new WeakMap;function fA(l){return E8.get(l)||1}function es(l){if(l!==Jn)throw new Error("invalid wNAF")}class c9{constructor(p,y){this.BASE=p.BASE,this.ZERO=p.ZERO,this.Fn=p.Fn,this.bits=y}_unsafeLadder(p,y,k=this.ZERO){let j=p;for(;y>Jn;)y&NA&&(k=k.add(j)),j=j.double(),y>>=NA;return k}precomputeWindow(p,y){const{windows:k,windowSize:j}=uA(y,this.bits),d=[];let m=p,P=m;for(let R=0;R<k;R++){P=m,d.push(P);for(let L=1;L<j;L++)P=P.add(m),d.push(P);m=P.double()}return d}wNAF(p,y,k){if(!this.Fn.isValid(k))throw new Error("invalid scalar");let j=this.ZERO,d=this.BASE;const m=uA(p,this.bits);for(let P=0;P<m.windows;P++){const{nextN:R,offset:L,isZero:O,isNeg:n0,isNegF:Z,offsetF:r0}=bo(k,P,m);k=R,O?d=d.add(Jo(Z,y[r0])):j=j.add(Jo(n0,y[L]))}return es(k),{p:j,f:d}}wNAFUnsafe(p,y,k,j=this.ZERO){const d=uA(p,this.bits);for(let m=0;m<d.windows&&k!==Jn;m++){const{nextN:P,offset:R,isZero:L,isNeg:O}=bo(k,m,d);if(k=P,!L){const n0=y[R];j=j.add(O?n0.negate():n0)}}return es(k),j}getPrecomputes(p,y,k){let j=yA.get(y);return j||(j=this.precomputeWindow(y,p),p!==1&&(typeof k=="function"&&(j=k(j)),yA.set(y,j))),j}cached(p,y,k){const j=fA(p);return this.wNAF(j,this.getPrecomputes(j,p,k),y)}unsafe(p,y,k,j){const d=fA(p);return d===1?this._unsafeLadder(p,y,j):this.wNAFUnsafe(d,this.getPrecomputes(d,p,k),y,j)}createCache(p,y){M8(y,this.bits),E8.set(p,y),yA.delete(p)}hasCache(p){return fA(p)!==1}}function k9(l,p,y,k){B9(y,l),p9(k,p);const j=y.length,d=k.length;if(j!==d)throw new Error("arrays of points and scalars must have equal length");const m=l.ZERO,P=i9(BigInt(j));let R=1;P>12?R=P-3:P>4?R=P-2:P>0&&(R=2);const L=li(R),O=new Array(Number(L)+1).fill(m),n0=Math.floor((p.BITS-1)/R)*R;let Z=m;for(let r0=n0;r0>=0;r0-=R){O.fill(m);for(let p0=0;p0<d;p0++){const q0=k[p0],a0=Number(q0>>BigInt(r0)&L);O[a0]=O[a0].add(y[p0])}let _0=m;for(let p0=O.length-1,q0=m;p0>0;p0--)q0=q0.add(O[p0]),_0=_0.add(q0);if(Z=Z.add(_0),r0!==0)for(let p0=0;p0<R;p0++)Z=Z.double()}return Z}function rs(l,p,y){if(p){if(p.ORDER!==l)throw new Error("Field.ORDER must match order: Fp == p, Fn == n");return y9(p),p}else return ft(l,{isLE:y})}function v9(l,p,y={},k){if(k===void 0&&(k=l==="edwards"),!p||typeof p!="object")throw new Error(`expected valid ${l} CURVE object`);for(const R of["p","n","h"]){const L=p[R];if(!(typeof L=="bigint"&&L>Jn))throw new Error(`CURVE.${R} must be positive bigint`)}const j=rs(p.p,y.Fp,k),d=rs(p.n,y.Fn,k),P=["Gx","Gy","a","d"];for(const R of P)if(!j.isValid(p[R]))throw new Error(`CURVE.${R} must be valid field element of CURVE.Fp`);return p=Object.freeze(Object.assign({},p)),{CURVE:p,Fp:j,Fn:d}}/*! noble-curves - MIT License (c) 2022 Paul Miller (paulmillr.com) */const tr=BigInt(0),T1=BigInt(1),aA=BigInt(2),j9=BigInt(8);function g9(l,p,y,k){const j=l.sqr(y),d=l.sqr(k),m=l.add(l.mul(p.a,j),d),P=l.add(l.ONE,l.mul(p.d,l.mul(j,d)));return l.eql(m,P)}function H8(l,p={}){const y=v9("edwards",l,p,p.FpFnLE),{Fp:k,Fn:j}=y;let d=y.CURVE;const{h:m}=d;ui(p,{},{uvRatio:"function"});const P=aA<<BigInt(j.BYTES*8)-T1,R=q0=>k.create(q0),L=p.uvRatio||((q0,a0)=>{try{return{isValid:!0,value:k.sqrt(k.div(q0,a0))}}catch{return{isValid:!1,value:tr}}});if(!g9(k,d,d.Gx,d.Gy))throw new Error("bad curve params: generator point");function O(q0,a0,k0=!1){const S0=k0?T1:tr;return Zo("coordinate "+q0,a0,S0,P),a0}function n0(q0){if(!(q0 instanceof _0))throw new Error("ExtendedPoint expected")}const Z=$o((q0,a0)=>{const{X:k0,Y:S0,Z:C0}=q0,A2=q0.is0();a0==null&&(a0=A2?j9:k.inv(C0));const p2=R(k0*a0),t2=R(S0*a0),u2=k.mul(C0,a0);if(A2)return{x:tr,y:T1};if(u2!==T1)throw new Error("invZ was invalid");return{x:p2,y:t2}}),r0=$o(q0=>{const{a:a0,d:k0}=d;if(q0.is0())throw new Error("bad point: ZERO");const{X:S0,Y:C0,Z:A2,T:p2}=q0,t2=R(S0*S0),u2=R(C0*C0),G0=R(A2*A2),U0=R(G0*G0),J0=R(t2*a0),g2=R(G0*R(J0+u2)),M2=R(U0+R(k0*R(t2*u2)));if(g2!==M2)throw new Error("bad point: equation left != right (1)");const 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p={a:l.a,d:l.d,p:l.Fp.ORDER,n:l.n,h:l.h,Gx:l.Gx,Gy:l.Gy},y=l.Fp,k=ft(p.n,l.nBitLength,!0),j={Fp:y,Fn:k,uvRatio:l.uvRatio},d={randomBytes:l.randomBytes,adjustScalarBytes:l.adjustScalarBytes,domain:l.domain,prehash:l.prehash,mapToCurve:l.mapToCurve};return{CURVE:p,curveOpts:j,hash:l.hash,eddsaOpts:d}}function m9(l,p){const y=p.Point;return Object.assign({},p,{ExtendedPoint:y,CURVE:l,nBitLength:y.Fn.BITS,nByteLength:y.Fn.BYTES})}function q9(l){const{CURVE:p,curveOpts:y,hash:k,eddsaOpts:j}=w9(l),d=H8(p,y),m=d9(d,k,j);return m9(l,m)}/*! noble-curves - MIT License (c) 2022 Paul Miller (paulmillr.com) */const at={p:BigInt("0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffeffffffffffffffffffffffffffffffffffffffffffffffffffffffff"),n:BigInt("0x3fffffffffffffffffffffffffffffffffffffffffffffffffffffff7cca23e9c44edb49aed63690216cc2728dc58f552378c292ab5844f3"),h:BigInt(4),a:BigInt(1),d:BigInt("0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffeffffffffffffffffffffffffffffffffffffffffffffffffffff6756"),Gx:BigInt("0x4f1970c66bed0ded221d15a622bf36da9e146570470f1767ea6de324a3d3a46412ae1af72ab66511433b80e18b00938e2626a82bc70cc05e"),Gy:BigInt("0x693f46716eb6bc248876203756c9c7624bea73736ca3984087789c1e05a0c2d73ad3ff1ce67c39c4fdbd132c4ed7c8ad9808795bf230fa14")},T9=Object.assign({},at,{d:BigInt("0xd78b4bdc7f0daf19f24f38c29373a2ccad46157242a50f37809b1da3412a12e79ccc9c81264cfe9ad080997058fb61c4243cc32dbaa156b9"),Gx:BigInt("0x79a70b2b70400553ae7c9df416c792c61128751ac92969240c25a07d728bdc93e21f7787ed6972249de732f38496cd11698713093e9c04fc"),Gy:BigInt("0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffff80000000000000000000000000000000000000000000000000000001")}),S9=Oc(()=>e9.create({dkLen:114})),P9=BigInt(1),ts=BigInt(2),ns=BigInt(3);BigInt(4);const 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p=Bi(l);if(p.length<20){const R=String.fromCharCode(...p);if(/^[A-Z_]+$/.test(R))throw console.error("[XFTP] Server handshake error: %s",R),new Error("Server handshake error: "+R)}const y=new Ze(p),k=tk(y),j=ve(y),d=EA(MA,y),m=MA(y);let P=null;if(y.remaining()>0){const R=ve(y);P=R.length===0?null:R}return{xftpVersionRange:k,sessionId:j,certChainDer:d,signedKeyDer:m,webIdentityProof:P}}function ok(l){switch(l.length){case 0:return{type:"empty"};case 1:return{type:"self",cert:l[0]};case 2:return{type:"valid",leafCert:l[0],idCert:l[1],caCert:l[1]};case 3:return{type:"valid",leafCert:l[0],idCert:l[1],caCert:l[2]};case 4:return{type:"valid",leafCert:l[0],idCert:l[1],caCert:l[3]};default:return{type:"long"}}}function r6(l){const p=l.anyByte();if(p<128)return p;const y=p&127;if(y===0||y>4)throw new Error("DER: unsupported length encoding");let k=0;for(let j=0;j<y;j++)k=k<<8|l.anyByte();return k}function GA(l){const p=l.offset();l.anyByte();const y=r6(l);return l.take(y),l.buf.subarray(p,l.offset())}function sk(l){const p=new Ze(l),y=p.anyByte();if(y!==48)throw new Error("SignedExact: expected SEQUENCE tag 0x30, got 0x"+y.toString(16));r6(p);const k=GA(p),j=GA(p),d=p.anyByte();if(d!==3)throw new Error("SignedExact: expected BIT STRING tag 0x03, got 0x"+d.toString(16));const m=r6(p);if(p.anyByte()!==0)throw new Error("SignedExact: expected 0 unused bits in signature");const R=p.take(m-1),L=hk(k);return{objectDer:k,dhKey:L,algorithm:j,signature:R}}function hk(l){if(l.length===44)return OA(l);if(l[0]!==48)throw new Error("decodeX25519Key: expected SEQUENCE");const p=new Ze(l);p.anyByte(),r6(p);const y=GA(p);return OA(y)}function t6(l){const p=l.anyByte();if(p<128)return p;const y=p&127;if(y===0||y>4)throw new Error("DER: unsupported length encoding");let k=0;for(let j=0;j<y;j++)k=k<<8|l.anyByte();return k}function rt(l){l.anyByte(),l.take(t6(l))}function lk(l){const p=l.offset();return l.anyByte(),l.take(t6(l)),l.buf.subarray(p,l.offset())}function uk(l){const p=new Ze(l);if(p.anyByte()!==48)throw new Error("X.509: expected Certificate SEQUENCE");if(t6(p),p.anyByte()!==48)throw new Error("X.509: expected TBSCertificate SEQUENCE");return t6(p),p.buf[p.offset()]===160&&rt(p),rt(p),rt(p),rt(p),rt(p),rt(p),lk(p)}function yk(l){if(l.length===44&&l[8]===112)return"ed25519";if(l.length===69&&l[8]===113)return"ed448";throw new Error("unsupported certificate key algorithm")}function fk(l){const p=yk(l);return{key:p==="ed25519"?G9(l):K9(l),alg:p}}function hs(l,p,y,k){return l==="ed25519"?O9(p,y,k):z9(p,y,k)}function ak(l){const p=ok(l.certChainDer);if(p.type!=="valid")return!1;const y=fi(p.idCert);if(!Bk(y,l.keyHash))return!1;const k=uk(p.leafCert),{key:j,alg:d}=fk(k);if(!hs(d,j,l.sigBytes,p1(l.challenge,l.sessionId)))return!1;const m=sk(l.signedKeyDer);return hs(d,j,m.signature,m.objectDer)}function Bk(l,p){if(l.length!==p.length)return!1;let y=0;for(let k=0;k<l.length;k++)y|=l[k]^p[k];return y===0}function pk(l){return p1(Ae(l.sndKey),CA(l.size),Ae(l.digest))}const O8=new Uint8Array([32]);function pi(l){const p=new Uint8Array(l.length);for(let y=0;y<l.length;y++)p[y]=l.charCodeAt(y);return p}function ck(l,p,y){return p1(pi("FNEW"),O8,pk(l),ac(Ae,p),ni(Ae,y))}function kk(){return pi("FPUT")}function vk(l){return p1(pi("FGET"),O8,Ae(l))}function UA(l){const p=l.offset();for(;l.remaining()>0&&!(l.buf[l.offset()]===32||l.buf[l.offset()]===10);)l.anyByte();let y="";for(let k=p;k<l.offset();k++)y+=String.fromCharCode(l.buf[k]);return y}function nt(l){if(l.anyByte()!==32)throw new Error("expected space")}function jk(l){if(l==="UNKNOWN"||l==="SYNTAX"||l==="PROHIBITED"||l==="NO_AUTH"||l==="HAS_AUTH"||l==="NO_ENTITY")return l;if(l==="NO_QUEUE")return"NO_ENTITY";throw new Error("bad CommandError: "+l)}function gk(l){const p=UA(l);switch(p){case"BLOCK":return{type:"BLOCK"};case"SESSION":return{type:"SESSION"};case"HANDSHAKE":return{type:"HANDSHAKE"};case"CMD":return nt(l),{type:"CMD",cmdErr:jk(UA(l))};case"AUTH":return{type:"AUTH"};case"BLOCKED":{nt(l);const y=l.takeAll();let k="";for(let j=0;j<y.length;j++)k+=String.fromCharCode(y[j]);return{type:"BLOCKED",blockInfo:k}}case"SIZE":return{type:"SIZE"};case"QUOTA":return{type:"QUOTA"};case"DIGEST":return{type:"DIGEST"};case"CRYPTO":return{type:"CRYPTO"};case"NO_FILE":return{type:"NO_FILE"};case"HAS_FILE":return{type:"HAS_FILE"};case"FILE_IO":return{type:"FILE_IO"};case"TIMEOUT":return{type:"TIMEOUT"};case"INTERNAL":return{type:"INTERNAL"};default:throw new Error("bad XFTPErrorType: "+p)}}function dk(l){const p=new Ze(l),y=UA(p);switch(y){case"SIDS":return nt(p),{type:"FRSndIds",senderId:ve(p),recipientIds:EA(ve,p)};case"RIDS":return nt(p),{type:"FRRcvIds",recipientIds:EA(ve,p)};case"FILE":{nt(p);const k=OA(ve(p)),j=p.take(24);return{type:"FRFile",rcvDhKey:k,nonce:j}}case"OK":return{type:"FROk"};case"ERR":return nt(p),{type:"FRErr",err:gk(p)};case"PONG":return{type:"FRPong"};default:throw new Error("unknown response: "+y)}}function wk(l,p,y){if(y.length<16)return{valid:!1,content:new Uint8Array(0),computedTag:new Uint8Array(0)};const k=y.subarray(0,y.length-16),j=y.subarray(y.length-16),d=gc(l,p),m=f8(d,k),P=ii(d);return{valid:mk(j,P),content:m,computedTag:P}}function mk(l,p){if(l.length!==p.length)return!1;let y=0;for(let k=0;k<l.length;k++)y|=l[k]^p[k];return y===0}function qk(l,p,y,k){y.slice(y.length-16);const{valid:j,content:d}=wk(l,p,y);if(!j)throw new Error("transport auth tag verification failed");if(k!==null){const m=fi(d);if(!Sk(m,k))throw new Error("chunk digest mismatch")}return d}function Tk(l,p){return Sc(BigInt(l.size),p,l.key,l.nonce)}function Sk(l,p){if(l.length!==p.length)return!1;let y=0;for(let k=0;k<l.length;k++)y|=l[k]^p[k];return y===0}class it extends Error{constructor(p){super(X8(p)),this.errorType=p,this.name="XFTPRetriableError"}}class tn extends Error{constructor(p,y){super(y),this.errorType=p,this.name="XFTPPermanentError"}}function ls(l){return l instanceof it?!0:l instanceof tn?!1:l instanceof TypeError||l instanceof Error&&l.name==="AbortError"}function us(l){return l instanceof it||l instanceof tn?l:l instanceof TypeError?new it("NETWORK"):l instanceof Error&&l.name==="AbortError"?new it("TIMEOUT"):l instanceof Error?l:new Error(String(l))}function X8(l){const p=typeof l=="string"?l:l.type;switch(p){case"SESSION":return"Session expired, reconnecting...";case"HANDSHAKE":return"Connection interrupted, reconnecting...";case"NETWORK":return"Network error, retrying...";case"TIMEOUT":return"Server timeout, retrying...";case"AUTH":return"File is invalid, expired, or has been removed";case"NO_FILE":return"File not found — it may have expired";case"SIZE":return"File size exceeds server limit";case"QUOTA":return"Server storage quota exceeded";case"BLOCKED":return"File has been blocked by server";case"DIGEST":return"File integrity check failed";case"INTERNAL":return"Server internal error";case"CMD":return"Protocol error";default:return"Server error: "+p}}const Pk={timeoutMs:3e4},Ik=typeof globalThis.process<"u"&&globalThis.process.versions?.node;async function xk(l,p){return Ik?Dk(l,p):Ck(l,p)}async function Dk(l,p){const k=(await cA(()=>import("node:http2"),[],import.meta.url)).connect(l,{rejectUnauthorized:!1});return{async post(j,d){return new Promise((m,P)=>{const R=k.request({":method":"POST",":path":"/",...d});R.setTimeout(p.timeoutMs,()=>{R.close(),P(Object.assign(new Error("Request timeout"),{name:"AbortError"}))});const L=[];R.on("data",O=>L.push(O)),R.on("end",()=>{const O=globalThis.Buffer;m(new Uint8Array(O.concat(L)))}),R.on("error",P),R.end(j)})},close(){k.close()}}}function Ck(l,p){const y=l;return{async post(k,j){const d=new AbortController,m=setTimeout(()=>d.abort(),p.timeoutMs);try{const P=await fetch(y,{method:"POST",headers:j,body:k,signal:d.signal});if(!P.ok)throw console.error("[XFTP] fetch %s failed: %d %s",y,P.status,P.statusText),new Error(`Server request failed: ${P.status} ${P.statusText}`);return new Uint8Array(await P.arrayBuffer())}finally{clearTimeout(m)}},close(){}}}function G8(){return{connections:new Map,_connectFn:Rk}}function Mk(l,p){const y=ht(p);let k=l.connections.get(y);if(!k){const j=l._connectFn(p);k={client:j,queue:Promise.resolve()},l.connections.set(y,k),j.catch(()=>{const d=l.connections.get(y);d&&d.client===j&&l.connections.delete(y)})}return k.client}function Ek(l,p){const y=ht(p),k=l.connections.get(y);k?.client.then(m=>m.transport.close(),()=>{});const j=l._connectFn(p),d={client:j,queue:k?.queue??Promise.resolve()};return l.connections.set(y,d),j.catch(()=>{const m=l.connections.get(y);m&&m.client===j&&l.connections.delete(y)}),j}function Hk(l,p,y){const k=ht(p),j=l.connections.get(k);j&&j.client===y&&(l.connections.delete(k),y.then(d=>d.transport.close(),()=>{}))}function KA(l){for(const p of l.connections.values())p.client.then(y=>y.transport.close(),()=>{});l.connections.clear()}async function Rk(l,p){const y={...Pk,...p},k="https://"+l.host+":"+l.port,j=await xk(k,y);try{const d=new Uint8Array(32);crypto.getRandomValues(d);const m=Ak({webChallenge:d}),P=await j.post(m,{"xftp-web-hello":"1"}),R=_k(P);if(!R.webIdentityProof)throw console.error("[XFTP] Server did not provide web identity proof"),new Error("Server did not provide web identity proof");if(!ak({certChainDer:R.certChainDer,signedKeyDer:R.signedKeyDer,sigBytes:R.webIdentityProof,challenge:d,sessionId:R.sessionId,keyHash:l.keyHash}))throw console.error("[XFTP] Server identity verification failed"),new Error("Server identity verification failed");const O=nk(R.xftpVersionRange,{minVersion:J9,maxVersion:b9});if(!O)throw console.error("[XFTP] Incompatible server version: %o",R.xftpVersionRange),new Error("Incompatible server version");const n0=O.maxVersion,Z=await j.post(ik({xftpVersion:n0,keyHash:l.keyHash}),{"xftp-handshake":"1"});if(Z.length!==0)throw console.error("[XFTP] Non-empty handshake ack (%d bytes)",Z.length),new Error("Server handshake failed");return{baseUrl:k,sessionId:R.sessionId,xftpVersion:n0,transport:j}}catch(d){throw console.error("[XFTP] Connection to %s failed:",k,d),j.close(),d}}async function Lk(l,p,y,k,j){const d=new Uint8Array(0),m=ek(l.sessionId,d,y,k,p),P=j?p1(m,j):m,R=await l.transport.post(P);if(console.log(`[XFTP-DBG] sendOnce: fullResp.length=${R.length} entityId=${Nt(y)} cmdTag=${k[0]}`),R.length<Cr)throw console.error("[XFTP] Response too short: %d bytes (expected >= %d)",R.length,Cr),new Error("Server response too short");const L=R.subarray(0,Cr),O=R.subarray(Cr);console.log(`[XFTP-DBG] sendOnce: body.length=${O.length} body.byteOffset=${O.byteOffset} body.buffer.byteLength=${O.buffer.byteLength}`);const n0=Bi(L);if(n0.length<20){const _0=new TextDecoder().decode(n0);if(/^[A-Z_]+$/.test(_0))throw new it(_0)}const{command:Z}=rk(l.sessionId,L),r0=dk(Z);if(r0.type==="FRErr"){const _0=r0.err;throw _0.type==="SESSION"||_0.type==="HANDSHAKE"?new it(_0.type):new tn(_0.type,X8(_0))}return{response:r0,body:O}}function Nt(l,p=8){return Array.from(l.slice(0,p)).map(y=>y.toString(16).padStart(2,"0")).join("")}async function ci(l,p,y,k,j,d,m=3){let P=Mk(l,p),R=await P;for(let L=1;L<=m;L++)try{return L>1&&console.log(`[XFTP-DBG] sendCmd: retry attempt=${L}/${m}`),await Lk(R,y,k,j,d)}catch(O){if(console.log(`[XFTP-DBG] sendCmd: attempt=${L} failed: ${O instanceof Error?O.message:String(O)} retriable=${ls(O)}`),!ls(O))throw us(O);if(L===m)throw Hk(l,p,P),us(O);P=Ek(l,p),R=await P}throw new Error("unreachable")}async function U8(l,p,y,k,j,d=null){const{response:m}=await ci(l,p,y,new Uint8Array(0),ck(k,j,d));if(m.type!=="FRSndIds")throw new Error("unexpected response: "+m.type);return{senderId:m.senderId,recipientIds:m.recipientIds}}async function K8(l,p,y,k,j){const{response:d}=await ci(l,p,y,k,kk(),j);if(d.type!=="FROk")throw new Error("unexpected response: "+d.type)}async function z8(l,p,y,k){const{publicKey:j,privateKey:d}=F9(),m=vk(U9(j)),{response:P,body:R}=await ci(l,p,y,k,m);if(P.type!=="FRFile")throw new Error("unexpected response: "+P.type);const L=X9(P.rcvDhKey,d);return console.log(`[XFTP-DBG] dlChunkRaw: body.length=${R.length} nonce=${Nt(P.nonce,24)} dhSecret=${Nt(L)} body[0..8]=${Nt(R)} body[-8..]=${Nt(R.slice(-8))}`),{dhSecret:L,nonce:P.nonce,body:R}}async function Yk(l,p,y,k,j){const{dhSecret:d,nonce:m,body:P}=await z8(l,p,y,k);return qk(d,m,P,j??null)}function ys(l){const p=ms(l),y=s8.deflateRaw(new TextEncoder().encode(p));return ze(y)}function Nk(l){const p=_r(l),y=new TextDecoder().decode(s8.inflateRaw(p)),k=qs(y),j=ZA(k);if(j)throw new Error("decodeDescriptionURI: "+j);return k}function Fk(l,p){const y=new Uint8Array(32),k=new Uint8Array(24);crypto.getRandomValues(y),crypto.getRandomValues(k);const j=mc({fileName:p,fileExtra:null}),d=BigInt(j.length+l.length),m=Number(d)+$9+V9,P=W9(m),R=BigInt(P.reduce((n0,Z)=>n0+Z,0)),L=Tc(l,j,y,k,d,R),O=R8([L]);return console.log(`[AGENT-DBG] encrypt: encData.len=${L.length} digest=${Z8(O,64)} chunkSizes=[${P.join(",")}]`),{encData:L,digest:O,key:y,nonce:k,chunkSizes:P}}const Qk=400;async function Ok(l,p,y,k){if(p.length===0)throw new Error("uploadFile: servers list is empty");const{onProgress:j,redirectThreshold:d,readChunk:m}=k??{},P=m||("encData"in y?(S0,C0)=>Promise.resolve(y.encData.subarray(S0,S0+C0)):()=>{throw new Error("uploadFile: readChunk required when encData is absent")}),R=y.chunkSizes.reduce((S0,C0)=>S0+C0,0),L=F8(y.chunkSizes),O=L.map((S0,C0)=>({index:C0,spec:S0,server:p[Math.floor(Math.random()*p.length)]})),n0=new Map;for(const S0 of O){const C0=ht(S0.server);n0.has(C0)||n0.set(C0,[]),n0.get(C0).push(S0)}const Z=new Array(L.length);let r0=0;await Promise.all([...n0.values()].map(async S0=>{for(const{index:C0,spec:A2,server:p2}of S0){const t2=C0+1,u2=bn(),G0=bn(),U0=await P(A2.chunkOffset,A2.chunkSize),J0=Q8(U0),g2={sndKey:e6(u2.publicKey),size:A2.chunkSize,digest:J0},M2=[e6(G0.publicKey)],{senderId:T2,recipientIds:D2}=await U8(l,p2,u2.privateKey,g2,M2);await K8(l,p2,u2.privateKey,T2,U0),Z[C0]={chunkNo:t2,senderId:T2,senderKey:u2.privateKey,recipientId:D2[0],recipientKey:G0.privateKey,chunkSize:A2.chunkSize,digest:J0,server:p2},r0+=A2.chunkSize,j?.(r0,R)}}));const _0=fs("recipient",y,Z),p0=fs("sender",y,Z);let q0=ys(_0),a0=_0;const k0=d??Qk;return q0.length>k0&&Z.length>1&&(a0=await Xk(l,p,_0),q0=ys(a0)),{rcvDescription:a0,sndDescription:p0,uri:q0}}function fs(l,p,y){const k=p.chunkSizes[0];return{party:l,size:p.chunkSizes.reduce((j,d)=>j+d,0),digest:p.digest,key:p.key,nonce:p.nonce,chunkSize:k,chunks:y.map(j=>({chunkNo:j.chunkNo,chunkSize:j.chunkSize,digest:j.digest,replicas:[{server:ht(j.server),replicaId:l==="recipient"?j.recipientId:j.senderId,replicaKey:Y8(l==="recipient"?j.recipientKey:j.senderKey)}]})),redirect:null}}async function Xk(l,p,y){const k=ms(y),j=new TextEncoder().encode(k),d=Fk(j,""),m=F8(d.chunkSizes),P=[];for(let R=0;R<m.length;R++){const L=m[R],O=R+1,n0=p[Math.floor(Math.random()*p.length)],Z=bn(),r0=bn(),_0=d.encData.subarray(L.chunkOffset,L.chunkOffset+L.chunkSize),p0=Q8(_0),q0={sndKey:e6(Z.publicKey),size:L.chunkSize,digest:p0},a0=[e6(r0.publicKey)],{senderId:k0,recipientIds:S0}=await U8(l,n0,Z.privateKey,q0,a0);await K8(l,n0,Z.privateKey,k0,_0),P.push({chunkNo:O,senderId:k0,senderKey:Z.privateKey,recipientId:S0[0],recipientKey:r0.privateKey,chunkSize:L.chunkSize,digest:p0,server:n0})}return{party:"recipient",size:d.chunkSizes.reduce((R,L)=>R+L,0),digest:d.digest,key:d.key,nonce:d.nonce,chunkSize:d.chunkSizes[0],chunks:P.map(R=>({chunkNo:R.chunkNo,chunkSize:R.chunkSize,digest:R.digest,replicas:[{server:ht(R.server),replicaId:R.recipientId,replicaKey:Y8(R.recipientKey)}]})),redirect:{size:y.size,digest:y.digest}}}async function Gk(l,p,y,k){const j=ZA(p);if(j)throw new Error("downloadFileRaw: "+j);const{onProgress:d}=k??{};p.redirect!==null&&(console.log(`[AGENT-DBG] resolving redirect: outer size=${p.size} chunks=${p.chunks.length}`),p=await Uk(l,p),console.log(`[AGENT-DBG] resolved: size=${p.size} chunks=${p.chunks.length} digest=${Array.from(p.digest.slice(0,16)).map(L=>L.toString(16).padStart(2,"0")).join("")}…`));const m=p;let P=0;const R=new Map;for(const L of m.chunks){const O=L.replicas[0]?.server??"";R.has(O)||R.set(O,[]),R.get(O).push(L)}return await Promise.all([...R.entries()].map(async([L,O])=>{const n0=$A(L);for(const Z of O){const r0=Z.replicas[0];if(!r0)throw new Error("downloadFileRaw: chunk has no replicas");const _0=N8(r0.replicaKey),p0=L8(_0),q0=await z8(l,n0,p0.privateKey,r0.replicaId);console.log(`[AGENT-DBG] chunk=${Z.chunkNo} body.len=${q0.body.length} expectedChunkSize=${Z.chunkSize} digest=${Z8(Z.digest,32)} body.byteOffset=${q0.body.byteOffset} body.buffer.byteLength=${q0.body.buffer.byteLength}`),await y({chunkNo:Z.chunkNo,dhSecret:q0.dhSecret,nonce:q0.nonce,body:q0.body,digest:Z.digest}),P+=Z.chunkSize,d?.(P,m.size)}})),m}async function Uk(l,p){const y=new Array(p.chunks.length);for(const L of p.chunks){const O=L.replicas[0];if(!O)throw new Error("resolveRedirect: chunk has no replicas");const n0=$A(O.server),Z=N8(O.replicaKey),r0=L8(Z),_0=await Yk(l,n0,r0.privateKey,O.replicaId,L.digest);y[L.chunkNo-1]=_0}if(y.reduce((L,O)=>L+O.length,0)!==p.size)throw new Error("resolveRedirect: redirect file size mismatch");const j=R8(y);if(!as(j,p.digest))throw new Error("resolveRedirect: redirect file digest mismatch");const{content:d}=Tk(p,y),m=new TextDecoder().decode(d),P=qs(m),R=ZA(P);if(R)throw new Error("resolveRedirect: inner description invalid: "+R);if(P.size!==p.redirect.size)throw new Error("resolveRedirect: redirect size mismatch");if(!as(P.digest,p.redirect.digest))throw new Error("resolveRedirect: redirect digest mismatch");return P}function Z8(l,p=8){return Array.from(l.slice(0,p)).map(y=>y.toString(16).padStart(2,"0")).join("")}function as(l,p){if(l.length!==p.length)return!1;let y=0;for(let k=0;k<l.length;k++)y|=l[k]^p[k];return y===0}const Kk=100*1024*1024,zk=.15,Zk=100*1024,Bs=1e3;function $k(l){l.innerHTML=`
+    <div class="card">
+      <h1>${Y2("title","SimpleX File Transfer")}</h1>
+      <div id="drop-zone" class="drop-zone">
+        <p>${Y2("dropZone","Drag & drop a file here")}</p>
+        <p class="hint">${Y2("dropZoneHint","or")}</p>
+        <label class="btn" for="file-input">${Y2("chooseFile","Choose file")}</label>
+        <input id="file-input" type="file" hidden>
+        <p class="hint">${Y2("maxSizeHint","Max 100 MB")}</p>
+      </div>
+      <div id="upload-progress" class="stage" hidden>
+        <div id="progress-container"></div>
+        <p id="upload-status">${Y2("encrypting","Encrypting…")}</p>
+        <button id="cancel-btn" class="btn btn-secondary">${Y2("cancel","Cancel")}</button>
+      </div>
+      <div id="upload-complete" class="stage" hidden>
+        <p class="success">${Y2("fileUploaded","File uploaded")}</p>
+        <div class="link-row">
+          <input id="share-link" data-testid="share-link" readonly>
+          <button id="copy-btn" class="btn">${Y2("copy","Copy")}</button>
+        </div>
+        <p class="hint expiry">${Y2("expiryHint","Files are typically available for 48 hours.")}</p>
+        <div class="security-note">
+          <p>${Y2("securityNote1","Your file was encrypted in the browser before upload — the server never sees file contents.")}</p>
+          <p>${Y2("securityNote2","The link contains the decryption key in the hash fragment, which the browser never sends to any server.")}</p>
+          <p>${Y2("securityNote3",'For maximum security, use the <a href="https://simplex.chat" target="_blank" rel="noopener">SimpleX app</a>.')}</p>
+        </div>
+      </div>
+      <div id="upload-error" class="stage" hidden>
+        <p class="error" id="error-msg"></p>
+        <button id="retry-btn" class="btn">${Y2("retry","Retry")}</button>
+      </div>
+    </div>`;const p=document.getElementById("drop-zone"),y=document.getElementById("file-input"),k=document.getElementById("upload-progress"),j=document.getElementById("upload-complete"),d=document.getElementById("upload-error"),m=document.getElementById("progress-container"),P=document.getElementById("upload-status"),R=document.getElementById("cancel-btn"),L=document.getElementById("share-link"),O=document.getElementById("copy-btn"),n0=document.getElementById("error-msg"),Z=document.getElementById("retry-btn"),r0=typeof navigator.share=="function"?(()=>{const k0=document.createElement("button");return k0.className="btn btn-secondary",k0.textContent=Y2("share","Share"),L.parentElement.appendChild(k0),k0})():null;let _0=!1;p.addEventListener("dragover",k0=>{k0.preventDefault(),p.classList.add("drag-over")}),p.addEventListener("dragleave",()=>p.classList.remove("drag-over")),p.addEventListener("drop",k0=>{k0.preventDefault(),p.classList.remove("drag-over");const S0=k0.dataTransfer?.files[0];S0&&a0(S0)}),y.addEventListener("change",()=>{y.files?.[0]&&a0(y.files[0])}),Z.addEventListener("click",()=>{y.value="",p0(p)});function p0(k0){for(const S0 of[p,k,j,d])S0.hidden=!0;k0.hidden=!1}function q0(k0){n0.innerHTML=k0,p0(d)}async function a0(k0){if(_0=!1,k0.size>Kk){q0(Y2("fileTooLarge","File too large (%size%). Maximum is 100 MB. The SimpleX app supports files up to 1 GB.").replace("%size%",Vk(k0.size)));return}if(k0.size===0){q0(Y2("fileEmpty","File is empty."));return}p0(k);const S0=Ts();m.innerHTML="",m.appendChild(S0.canvas);const C0=k0.size>=Zk,A2=C0?zk:0;P.textContent=C0?Y2("encrypting","Encrypting…"):Y2("uploading","Uploading…");const p2=gs(),t2=G8();R.onclick=()=>{_0=!0,S0.destroy(),p2.cleanup().catch(()=>{}),KA(t2),p0(p)};try{const u2=performance.now(),G0=new Uint8Array(await k0.arrayBuffer());if(_0)return;const U0=await p2.encrypt(G0,k0.name,(D2,$2)=>{S0.update(D2/$2*A2)});if(_0)return;if(C0){const D2=performance.now()-u2;if(D2<Bs&&(await S0.fillTo(A2,Bs-D2),_0))return;P.textContent=Y2("uploading","Uploading…")}const J0={digest:U0.digest,key:U0.key,nonce:U0.nonce,chunkSizes:U0.chunkSizes},g2=ua(),M2=await Ok(t2,g2,J0,{readChunk:(D2,$2)=>p2.readChunk(D2,$2),onProgress:(D2,$2)=>{S0.update(A2+D2/$2*(1-A2))}});if(_0)return;const T2=window.location.origin+window.location.pathname+"#"+M2.uri;L.value=T2,p0(j),l.dispatchEvent(new CustomEvent("xftp:upload-complete",{detail:{url:T2},bubbles:!0})),O.onclick=()=>{navigator.clipboard.writeText(T2).then(()=>{O.textContent=Y2("copied","Copied!"),setTimeout(()=>{O.textContent=Y2("copy","Copy")},2e3)})},r0&&(r0.onclick=()=>navigator.share({url:T2}).catch(()=>{}))}catch(u2){if(!_0){const G0=u2?.message??String(u2);q0(G0),u2 instanceof tn?Z.hidden=!0:Z.hidden=!1}}finally{S0.destroy(),await p2.cleanup().catch(()=>{}),KA(t2)}}}function Vk(l){return l<1024?l+" B":l<1024*1024?(l/1024).toFixed(1)+" KB":(l/(1024*1024)).toFixed(1)+" MB"}const Wk=.15,Jk=100*1024,ps=1e3;function bk(l,p){let y;try{y=Nk(p)}catch{l.innerHTML=`<div class="card"><p class="error">${Y2("invalidLink","Invalid or corrupted link.")}</p></div>`;return}const k=y.redirect?y.redirect.size:y.size;l.innerHTML=`
+    <div class="card">
+      <h1>${Y2("title","SimpleX File Transfer")}</h1>
+      <div id="dl-ready" class="stage">
+        <p>${Y2("fileAvailable","File available (~%size%)").replace("%size%",rv(k))}</p>
+        <button id="dl-btn" class="btn">${Y2("download","Download")}</button>
+        <div class="security-note">
+          <p>${Y2("dlSecurityNote1","This file is encrypted — the server never sees file contents.")}</p>
+          <p>${Y2("dlSecurityNote2","The decryption key is in the link’s hash fragment, which your browser never sends to any server.")}</p>
+          <p>${Y2("dlSecurityNote3",'For maximum security, use the <a href="https://simplex.chat" target="_blank" rel="noopener">SimpleX app</a>.')}</p>
+        </div>
+      </div>
+      <div id="dl-progress" class="stage" hidden>
+        <div id="dl-progress-container"></div>
+        <p id="dl-status">${Y2("downloading","Downloading…")}</p>
+      </div>
+      <div id="dl-error" class="stage" hidden>
+        <p class="error" id="dl-error-msg"></p>
+        <button id="dl-retry-btn" class="btn">${Y2("retry","Retry")}</button>
+      </div>
+    </div>`;const j=document.getElementById("dl-ready"),d=document.getElementById("dl-progress"),m=document.getElementById("dl-error"),P=document.getElementById("dl-progress-container"),R=document.getElementById("dl-status"),L=document.getElementById("dl-btn"),O=document.getElementById("dl-error-msg"),n0=document.getElementById("dl-retry-btn");function Z(p0){for(const q0 of[j,d,m])q0.hidden=!0;p0.hidden=!1}function r0(p0){O.innerHTML=p0,Z(m)}L.addEventListener("click",_0),n0.addEventListener("click",()=>Z(j));async function _0(){Z(d);const p0=Ts();P.innerHTML="",P.appendChild(p0.canvas);const q0=k>=Jk,a0=q0?Wk:0;R.textContent=Y2("downloading","Downloading…");const k0=gs(),S0=G8();try{const C0=await Gk(S0,y,async g2=>{await k0.decryptAndStoreChunk(g2.dhSecret,g2.nonce,g2.body,g2.digest,g2.chunkNo)},{onProgress:(g2,M2)=>{p0.update(g2/M2*(1-a0))}});q0&&(R.textContent=Y2("decrypting","Decrypting…"));const A2=performance.now(),{header:p2,content:t2}=await k0.verifyAndDecrypt({size:C0.size,digest:C0.digest,key:C0.key,nonce:C0.nonce},(g2,M2)=>{p0.update(Math.min(.99,1-a0+g2/M2*a0))});if(q0){const g2=performance.now()-A2;g2<ps&&await p0.fillTo(.99,ps-g2)}const u2=ev(p2.fileName),G0=new Blob([t2.buffer]),U0=URL.createObjectURL(G0),J0=document.createElement("a");J0.href=U0,J0.download=encodeURIComponent(u2),J0.style.display="none",document.body.appendChild(J0),J0.click(),document.body.removeChild(J0),setTimeout(()=>URL.revokeObjectURL(U0),1e3),p0.update(1),R.textContent=Y2("downloadComplete","Download complete"),l.dispatchEvent(new CustomEvent("xftp:download-complete",{detail:{fileName:u2},bubbles:!0}))}catch(C0){const A2=C0?.message??String(C0);r0(A2),C0 instanceof tn?n0.hidden=!0:n0.hidden=!1}finally{p0.destroy(),await k0.cleanup().catch(()=>{}),KA(S0)}}}function ev(l){let p=l;return p=p.replace(/[/\\]/g,""),p=p.replace(/[\x00-\x1f\x7f]/g,"_"),p=p.replace(/[\u202a-\u202e\u2066-\u2069]/g,""),p.length>255&&(p=p.slice(0,255)),p||"download"}function rv(l){return l<1024?l+" B":l<1024*1024?(l/1024).toFixed(1)+" KB":(l/(1024*1024)).toFixed(1)+" MB"}function ki(){return document.querySelector("[data-xftp-app]")??document.getElementById("app")}const $8=P2.ready;async function tv(){const l=ki();l?.hasAttribute("data-defer-init")||zA(),l?.hasAttribute("data-no-hashchange")||window.addEventListener("hashchange",()=>{const p=window.location.hash.slice(1);(!p||V8(p))&&zA()}),await $8,l?.dispatchEvent(new CustomEvent("xftp:ready",{bubbles:!0}))}function V8(l){return l.length>50&&/^[A-Za-z0-9_=-]+$/.test(l)}function zA(){const l=ki(),p=window.location.hash.slice(1);p&&V8(p)?bk(l,p):$k(l)}window.__xftp_initApp=async()=>{await $8,zA()};tv().catch(l=>{const p=ki();p&&(p.innerHTML=`<div class="error"><p>${Y2("initError","Failed to initialize: %error%").replace("%error%",l.message)}</p></div>`),console.error(l)});
diff --git a/file/index.html b/file/index.html
new file mode 100644
index 0000000000..753f1883a0
--- /dev/null
+++ b/file/index.html
@@ -0,0 +1,888 @@
+<!DOCTYPE html>
+<html lang="en"
+    
+        
+            dir="ltr"
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    >
+    <head>
+        <meta charset="UTF-8">
+        <meta http-equiv="X-UA-Compatible" content="IE=edge">
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        <title>SimpleX File Transfer</title>
+        <meta name="description" content="Send files securely with end-to-end encryption"/>
+        <meta name="Content-Type" content="text/html;charset=utf-8"/>
+        
+        <meta http-equiv="onion-location" content="http://isdb4l77sjqoy2qq7ipum6x3at6hyn3jmxfx4zdhc72ufbmuq4ilwkqd.onion/" />
+        <meta property="og:url" content="https://simplex.chat/" />
+        
+        <meta property="og:type" content="website"/>
+        <meta property="og:title" content="SimpleX File Transfer"/>
+        <meta property="og:description" content="Send files securely with end-to-end encryption"/>
+        <meta property="og:image" content="https://simplex.chat/img/share_simplex.jpg"/>
+        <meta name="twitter:card" content="summary"/>
+        <link rel="icon" type="image/png" sizes="96x96" href="/img/favicon.ico"/>
+
+        <link rel="stylesheet" href="/css/swiper-bundle.min.css">
+        <link rel="stylesheet" href="/css/blog.css">
+        <link href="/css/tailwind.css" rel="stylesheet"/>
+        <link rel="stylesheet" href="/css/style.css">
+        <link rel="stylesheet" href="/css/design3-nav.css">
+        <script async defer src="https://buttons.github.io/buttons.js"></script>
+        <script src="/js/flag-anchor.js"></script>
+        
+    </head>
+    <body class="bg-[#F3FAFF] dark:bg-[#000832]">
+        
+
+
+    
+        
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+
+<header id="navbar">
+    <a href="/" class="logo logo-light ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-light.png" alt="logo"></a>
+    <a href="/" class="logo logo-dark ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-dark.png" alt="logo"></a>
+
+    <nav id="menu">
+        <ul>
+            <li class="nav-link ">
+                <a href="/">
+                    <span class="nav-link-text">Home</span>
+                </a>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/directory/">
+                    <span class="nav-link-text">Directory</span>
+                </a>
+            </li>
+
+            
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">Guide</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    
+                        <li><a href="/docs/guide/readme.html" class="">Quick start</a></li>
+                    
+                        <li><a href="/docs/guide/send-messages.html" class="">Sending messages</a></li>
+                    
+                        <li><a href="/docs/guide/secret-groups.html" class="">Secret groups</a></li>
+                    
+                        <li><a href="/docs/guide/chat-profiles.html" class="">Chat profiles</a></li>
+                    
+                        <li><a href="/docs/guide/managing-data.html" class="">Managing data</a></li>
+                    
+                        <li><a href="/docs/guide/audio-video-calls.html" class="">Audio & video Calls</a></li>
+                    
+                        <li><a href="/docs/guide/privacy-security.html" class="">Privacy & security</a></li>
+                    
+                        <li><a href="/docs/guide/app-settings.html" class="">App settings</a></li>
+                    
+                        <li><a href="/docs/guide/making-connections.html" class="">Making connections</a></li>
+                    
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">Reference</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md"
+                        target="_blank">Whitepaper
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/privacy">Privacy Policy</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/simplex-messaging.md"
+                        target="_blank">SMP protocol
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/protocol/simplex-chat.html">Chat protocol</a></li>
+                    <li><a href="/docs/glossary.html">Glossary</a></li>
+
+                    <hr>
+
+                    
+                        <li><a href="/docs/simplex.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX network</a></li>
+                    
+                        <li><a href="/docs/business.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX for business</a></li>
+                    
+                        <li><a href="/docs/directory.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX Directory</a></li>
+                    
+                        <li><a href="/docs/android.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Accessing Android files</a></li>
+                    
+                        <li><a href="/docs/server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Host SMP Server</a></li>
+                    
+                        <li><a href="/docs/xftp-server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Host XFTP Server</a></li>
+                    
+                        <li><a href="/docs/webrtc.html" class=" lg:px-[20px] inline-block whitespace-nowrap">WebRTC servers</a></li>
+                    
+                        <li><a href="/downloads/" class=" lg:px-[20px] inline-block whitespace-nowrap">Downloads</a></li>
+                    
+                        <li><a href="/reproduce/" class=" lg:px-[20px] inline-block whitespace-nowrap">Verify & reproduce builds</a></li>
+                    
+                        <li><a href="/transparency/" class=" lg:px-[20px] inline-block whitespace-nowrap">Transparency</a></li>
+                    
+                        <li><a href="/security/" class=" lg:px-[20px] inline-block whitespace-nowrap">Security</a></li>
+                    
+                        <li><a href="/faq/" class=" lg:px-[20px] inline-block whitespace-nowrap">FAQ</a></li>
+                    
+
+                    <hr>
+
+                    <li><a href="/docs/translations.html"
+                    >Translate SimpleX Chat
+                    </a></li>
+                    <li><a href="/docs/android.html"
+                    >Accessing Android files
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/blob/stable/apps/simplex-bot-advanced/Main.hs"
+                        target="_blank">Chat bot example
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/tree/stable/packages/simplex-chat-client/typescript"
+                        target="_blank">TypeScript SDK
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/cli.html">Terminal CLI</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq"
+                        target="_blank">SimpleXMQ
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/blog">
+                    <span class="nav-link-text">Blog</span>
+                </a>
+            </li>
+        </ul>
+    </nav>
+
+    <div class="right-links">
+        
+            <a class="box-btn token md:hidden" href="/donate">
+                Donate
+            </a>
+        
+        <button href="#" class="theme-switch-btn">
+            <svg class="sun" width="469" height="469" viewBox="0 0 469 469" fill="none" xmlns="http://www.w3.org/2000/svg">
+            <path d="M225.768 1.44594C220.301 3.84594 214.701 10.6459 213.768 15.9793C213.234 18.3793 213.101 31.7126 213.368 45.7126L213.768 71.1793L217.634 76.1126C226.701 88.1126 242.968 87.5793 252.301 75.0459C254.968 71.5793 255.101 69.5793 255.101 42.2459C255.101 14.9126 254.968 12.9126 252.301 9.44594C250.834 7.44594 248.034 4.51261 246.168 3.17928C241.768 -0.154057 231.101 -1.08739 225.768 1.44594Z"/>
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+            </svg>
+
+            <svg class="moon" width="469" height="469" viewBox="5 5 20 23" xmlns="http://www.w3.org/2000/svg">
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+            </svg>
+        </button>
+
+        
+
+        <button id="cross-btn" class="nav-toggle-btn">
+            <svg id="cross" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+            <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z" />
+        </svg>
+        </button>
+    </div>
+</header>
+<div id="mobile-header">
+    <a href="/" class="logo flex dark:hidden ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-light.svg" alt="" srcset=""></a>
+    <a href="/" class="logo hidden dark:flex ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-dark.svg" alt="" srcset=""></a>
+
+    <button id="hamburger" class="nav-toggle-btn">
+        <svg viewBox="0 0 100 80" width="36" height="36">
+            <rect width="100" height="15"></rect>
+            <rect y="30" width="100" height="15"></rect>
+            <rect y="60" width="100" height="15"></rect>
+        </svg>
+    </button>
+</div>
+
+
+<script>
+// switch theme
+const sunIcon = document.querySelector('.sun');
+const moonIcon = document.querySelector('.moon');
+
+const userTheme = localStorage.getItem('theme');
+const systemTheme = window.matchMedia('(prefers-color-scheme: dark)').matches;
+const prismThemeLink = document.getElementById('prism-theme')
+
+function iconToggle () {
+    sunIcon.classList.toggle('hidden');
+    moonIcon.classList.toggle('hidden');
+}
+
+function themeCheck() {
+    if (userTheme === 'dark' || (!userTheme && systemTheme)) {
+        document.documentElement.classList.add('dark');
+        moonIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+    }
+    else{
+        sunIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+    }
+}
+themeCheck();
+
+function themeSwitch () {
+    if (document.documentElement.classList.contains('dark')) {
+        document.documentElement.classList.remove('dark');
+        localStorage.setItem('theme', 'light');
+        if(prismThemeLink){
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+        iconToggle();
+    } else {
+        document.documentElement.classList.add('dark');
+        localStorage.setItem('theme', 'dark');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+        iconToggle();
+    }
+}
+
+const nav = document.querySelector('header#navbar');
+
+window.addEventListener('click',(e)=>{
+    if(e.target.closest('.nav-link')){
+        if(e.target.closest('.nav-link').classList.contains('active')){
+            e.target.closest('.nav-link').classList.remove('active');
+        }
+        else{
+            document.querySelectorAll('.nav-link').forEach(el => el.classList.remove('active'))
+            e.target.closest('.nav-link').classList.add('active');
+        }
+    }
+    else if(e.target.closest('.nav-toggle-btn')){
+        if(nav.classList.contains('open')){
+            nav.classList.remove('open');
+            document.getElementById('mobile-header').classList.remove('nav-open');
+            document.documentElement.classList.remove('lock-scroll');
+        }
+        else{
+            document.documentElement.classList.add('lock-scroll');
+            document.getElementById('mobile-header').classList.add('nav-open');
+            nav.classList.add('open');
+        }
+    }
+    else if(e.target.closest('.theme-switch-btn')){
+        themeSwitch();
+    }
+});
+</script>
+
+        <html><head><link rel="stylesheet" href="/file-assets/index.css">
+<style>
+  /* Reset website .card styles that conflict with xftp bundle */
+  #app .card { cursor: default; }
+  #app .card,
+  #app .card > div { transition: unset; height: auto; }
+  #app .card > div > * { opacity: unset; max-height: unset; transform: unset; transition: unset; }
+
+  /* Align xftp bundle with website design */
+  #app { font-family: inherit; color: #3F484B; max-width: 600px; width: 100%; margin: 0 auto; padding: 0; }
+  #app .card { background: transparent; box-shadow: none; padding: 0; border-radius: 0; }
+  #app .card > h1 { display: none; }
+  .dark #app h1 { color: #fff; }
+  #app .drop-zone { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; }
+  #app .drop-zone.drag-over { border-color: #0053D0; background: #DBEEFF; }
+  #app .btn { background: #0053D0; border-radius: 34px; padding: 12px 32px; font-size: .9rem; font-weight: 600; }
+  #app .btn:hover { background: #1661D1; }
+  #app .btn-secondary { background: #6b7280; border-radius: 34px; }
+  #app .hint { color: #6b7280; }
+  #app .link-row input { border-radius: 8px; border-color: #c5d3de; }
+  #app .security-note { background: #ffffff; border-radius: 12px; color: #3F484B; }
+  #app .security-note a { color: #0197FF; }
+  #app .success { color: #0053D0; }
+
+  .dark #app { color: #e5e7eb; }
+  .dark #app .card { background: transparent; box-shadow: none; }
+  .dark #app .drop-zone { border-color: #374151; }
+  .dark #app .drop-zone.drag-over { border-color: #70F0F9; background: #1B325C; }
+  .dark #app .btn { background: #70F0F9; color: #000832; }
+  .dark #app .btn:hover { background: #66D9E2; }
+  .dark #app .link-row input { border-color: #374151; background: #071C46; color: #e5e7eb; }
+  .dark #app .security-note { background: #0B2A59; color: #d1d5db; }
+  .dark #app .security-note a { color: #70F0F9; }
+  .dark #app .success { color: #70F0F9; }
+
+  #app #upload-error { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; text-align: center; }
+  .dark #app #upload-error { border-color: #374151; }
+
+  #app .stage > .btn { margin-top: 20px; }
+  #app .security-note { margin-top: 20px; }
+  #app .drop-zone .btn { margin: 10px 0 16px; }
+
+  /* Protocol overlay: image fixed, text scrolls natively */
+  /* Push popup below navbar at all widths */
+  #xftp-protocol { padding-top: 70px; }
+  #xftp-protocol .overlay-card {
+    display: flex;
+    flex-direction: column;
+    position: relative;
+    overflow: hidden;
+  }
+  @media (min-width: 768px) {
+    #xftp-protocol .overlay-card { max-height: min(660px, 100%); }
+  }
+  #xftp-protocol .overlay-card > h1 {
+    flex-shrink: 0;
+    padding-bottom: 16px;
+    margin-bottom: 0;
+    z-index: 1;
+  }
+  @media (min-width: 1024px) and (max-height: 750px) {
+    #xftp-protocol .overlay-card > h1 {
+      font-size: 22px;
+    }
+  }
+  /* .flex is the full-width scroll container */
+  #xftp-protocol .overlay-card > .flex {
+    flex: 1;
+    min-height: 0;
+    overflow-y: auto;
+    scrollbar-width: thin;
+    scrollbar-color: #c5d3de transparent;
+  }
+  .dark #xftp-protocol .overlay-card > .flex {
+    scrollbar-color: #374151 transparent;
+  }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar { width: 6px; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-track { background: transparent; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #c5d3de; border-radius: 3px; }
+  .dark #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #374151; }
+  /* Desktop: text stays left, image fixed on right */
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card > .flex > div:first-child {
+      max-width: 50%;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child {
+      position: absolute;
+      right: 56px;
+      top: 0;
+      bottom: 0;
+      left: 55%;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      pointer-events: none;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child > div {
+      height: 100%;
+      padding: 40px 0;
+      box-sizing: border-box;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child img {
+      height: 100%;
+    }
+  }
+  #xftp-protocol .close-overlay-btn {
+    position: absolute;
+    top: 24px;
+    right: 24px;
+    cursor: pointer;
+    z-index: 3;
+    fill: #606C71;
+  }
+  .dark #xftp-protocol .close-overlay-btn { fill: #e5e7eb; }
+  /* Scroll fade: gradient over text area only, hidden at bottom */
+  #xftp-protocol .overlay-card::after {
+    content: '';
+    position: absolute;
+    bottom: 40px;
+    left: 24px;
+    right: 24px;
+    height: 48px;
+    background: linear-gradient(rgba(255,255,255,0), #fff);
+    pointer-events: none;
+    z-index: 2;
+    transition: opacity 0.2s;
+  }
+  .dark #xftp-protocol .overlay-card::after {
+    background: linear-gradient(rgba(7,28,70,0), #071C46);
+  }
+  @media (min-width: 640px) {
+    #xftp-protocol .overlay-card::after { bottom: 56px; left: 56px; right: 56px; }
+  }
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card::after { right: 55%; }
+  }
+  #xftp-protocol.scrolled-bottom .overlay-card::after { opacity: 0; }
+  #xftp-protocol .overlay-card.flex,
+  #xftp-protocol.flex .overlay-card { animation: overlaySlideIn 0.25s ease-out; }
+  @keyframes overlaySlideIn {
+    from { opacity: 0; transform: scale(0.95) translateY(10px); }
+    to { opacity: 1; transform: scale(1) translateY(0); }
+  }
+  #xftp-protocol.overlay-closing { animation: overlayFadeOut 0.2s ease-in forwards; }
+  #xftp-protocol.overlay-closing .overlay-card { animation: overlaySlideOut 0.2s ease-in forwards; }
+  @keyframes overlayFadeOut {
+    from { opacity: 1; }
+    to { opacity: 0; }
+  }
+  @keyframes overlaySlideOut {
+    from { opacity: 1; transform: scale(1) translateY(0); }
+    to { opacity: 0; transform: scale(0.95) translateY(10px); }
+  }
+
+  .file-proto-link {
+    font-size: 1.25rem;
+    font-weight: 600;
+    background: linear-gradient(90deg, #001aa7 0%, #0095e7 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+    text-decoration: none;
+  }
+  .dark .file-proto-link {
+    background: linear-gradient(90deg, #019bfe 0%, #64fdff 58%, #c8feff 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+  }
+
+</style>
+
+</head><body><section class="bg-secondary-bg-light dark:bg-primary-bg-dark py-10 mt-[66px] px-5">
+  <div class="container flex flex-col items-center mx-auto">
+    <noscript>
+      <p class="text-center text-grey-black dark:text-white py-10">
+        JavaScript is required for file transfer.
+      </p>
+    </noscript>
+    <h1 class="text-[38px] text-center font-bold text-active-blue mb-8">SimpleX File Transfer</h1>
+    <div id="app" data-xftp-app="" data-no-hashchange="" class="w-full">
+      <div class="card">
+        <div class="drop-zone">
+          <p>Drag &amp; drop a file here</p>
+          <p class="hint">or</p>
+          <span class="btn">Choose file</span>
+          <p class="hint">Max 100 MB - <a href="#join-simplex">SimpleX Chat app</a> supports files up to 1 GB</p>
+        </div>
+      </div>
+    </div>
+    <template id="dl-placeholder">
+      <div class="card">
+        <h1>SimpleX File Transfer</h1>
+        <div class="stage">
+          <p>File available</p>
+          <button class="btn">Download</button>
+          <div class="security-note">
+            <p>This file is encrypted - data routers never see file contents, name or size.</p>
+            <p>The encryption key is in the link’s hash fragment - it is never sent to any server.</p>
+            <p>For better security, use <a href="https://simplex.chat/download">SimpleX Chat</a> app.</p>
+          </div>
+        </div>
+      </div>
+    </template>
+    <script>if(location.hash.length>50){var a=document.getElementById("app"),t=document.getElementById("dl-placeholder");if(a&&t)a.replaceChildren(t.content.cloneNode(true))}</script>
+    <script type="module" src="/file-assets/index.js"></script>
+
+    <p class="text-base text-center text-grey-black dark:text-white mt-10 max-w-[600px]">Send files securely with <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span> — no accounts, no tracking.</p>
+    <a href="javascript:void(0)" data-show-overlay="xftp-protocol" class="open-overlay-btn file-proto-link mt-3 block text-center">Learn more about XFTP protocol</a>
+  </div>
+</section>
+
+<section class="bg-primary-bg-light dark:bg-secondary-bg-dark py-[90px] px-5">
+  <div class="container flex flex-col items-center mx-auto text-center">
+    <h2 class="text-[35px] leading-[45px] md:text-[45px] md:leading-[55px] text-grey-black dark:text-white font-bold mb-5">
+      Get SimpleX Chat — the most secure &amp; private messenger
+    </h2>
+    <p class="text-base text-grey-black dark:text-white mb-14 max-w-[600px]">
+      The file transfer you just used uses the same data routing protocol as SimpleX Chat. The app has end-to-end encrypted messaging, voice and video calls, groups, and sending files. No account. No phone. No email. No user profile IDs.
+    </p>
+    <div class="flex items-center justify-center gap-4 flex-wrap">
+      <a href="https://apps.apple.com/us/app/simplex-chat/id1605771084" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apple_store.svg"></a>
+      <a href="https://play.google.com/store/apps/details?id=chat.simplex.app" target="_blank"><img class="h-[40px] w-auto" src="/img/new/google_play.svg"></a>
+      <a href="/fdroid"><img class="h-[40px] w-auto" src="/img/new/f_droid.svg"></a>
+      <a href="https://testflight.apple.com/join/DWuT2LQu" target="_blank"><img class="h-[40px] w-auto" src="/img/new/testflight.png"></a>
+      <a href="https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-aarch64.apk" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apk_icon.png"></a>
+    </div>
+  </div>
+</section>
+
+
+  
+    
+    <div id="xftp-protocol" data-scroll-to="" class="overlay hidden fixed top-0 left-0 bottom-0 right-0 before:absolute before:w-full before:h-full bg-transparent before:bg-secondary-bg-light dark:before:bg-primary-bg-dark before:opacity-90 items-center justify-center p-3 md:p-10 z-[10000]">
+        <div class="overlay-card w-full md:w-fit md:max-w-[1276px] bg-white dark:bg-card-bg-dark opacity-100 h-full md:h-fit md:max-h-[660px] z-[10001] rounded-md shadow-[0px_3px_12px_rgba(0,0,0,0.2)] p-6 py-10 sm:p-14 overflow-auto scale-100">
+            <h1 class="text-3xl font-bold text-active-blue mb-6 ">XFTP protocol: the most secure file transfer</h1>
+            <div class="flex flex-col-reverse lg:flex-row gap-10 justify-between">
+                
+                    <div class="lg:max-w-[448px]">
+                        <div class="text-grey-black dark:text-white flex flex-col gap-6 text-base">
+                            <div>
+  <h3 class="font-bold text-lg mb-2">No account required</h3>
+  <p>Each file fragment uses a new random key. Data routers have no "users" or "files" - they transfer encrypted file fragments of fixed sizes.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Triple-encrypted in your browser</h3>
+  <p>File encryption key is present only in the URL hash fragment - your browser never sends it to a server. There are 3 encryption layers: TLS transport, per-recipient encryption (unique ephemeral key per transfer), and file <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span>.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Independent data routers</h3>
+  <p>When file is split to fragments, it is sent via network routers operated by independent parties. No operator can see the actual file size or name. Even if a router is compromised, it can only see encrypted fragments of fixed size. File fragments are cached by network routers for approximately 48 hours.</p>
+</div>
+<p class="mt-4">
+  <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/xftp.md" target="_blank" rel="noopener" class="text-active-blue hover:underline">
+    Read the XFTP protocol specification →
+  </a>
+</p>
+
+                        </div>
+                    </div>
+                
+
+                
+                    <div class="max-w-[448px]">
+                        <div class="flex items-center justify-center">
+                            <img class="w-full max-w-[448px] min-w-[300px] dark:hidden" src="/img/new/xftp-protocol.svg" alt="">
+                            <img class="w-full max-w-[448px] min-w-[300px] hidden dark:block" src="/img/new/xftp-protocol-dark.svg" alt="">
+                        </div>
+                    </div>
+                
+            </div>
+
+            <svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
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+            </svg>
+        </div>
+    </div>
+
+
+
+<script>
+  window.__XFTP_I18N__ = {
+    "title": "SimpleX File Transfer",
+    "dropZone": "Drag & drop a file here",
+    "dropZoneHint": "or",
+    "chooseFile": "Choose file",
+    "maxSizeHint": "Max 100 MB - <a href=\"#join-simplex\">SimpleX Chat app</a> supports files up to 1 GB",
+    "encrypting": "Encrypting…",
+    "uploading": "Uploading…",
+    "cancel": "Cancel",
+    "fileUploaded": "File uploaded",
+    "copy": "Copy",
+    "copied": "Copied!",
+    "share": "Share",
+    "expiryHint": "Files are typically available for 48 hours.",
+    "securityNote1": "Your file was encrypted in the browser - data routers never see file contents, name or size.",
+    "securityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "securityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "retry": "Retry",
+    "downloading": "Downloading…",
+    "decrypting": "Decrypting…",
+    "downloadComplete": "Download complete",
+    "download": "Download",
+    "fileTooLarge": "File too large (%size%). Maximum is 100 MB. The <a href=\"#join-simplex\">SimpleX app</a> supports files up to 1 GB.",
+    "fileEmpty": "File is empty.",
+    "invalidLink": "Invalid or corrupted link.",
+    "initError": "Failed to initialize: %error%",
+    "fileAvailable": "File available (~%size%)",
+    "dlSecurityNote1": "This file is encrypted - data routers never see file contents, name or size.",
+    "dlSecurityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "dlSecurityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "workersRequired": "Web Workers required — update your browser"
+  }
+</script>
+
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+
+<div id="address-portability" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Address portability</h1><div class="overlay-content"><p>Similarly to <a href="https://en.wikipedia.org/wiki/Local_number_portability">phone number portability</a> (the ability of the customer to transfer the service to another provider without changing the number), the address portability means the ability of a communication service customer to change the service provider without changing the service address. Many <a href="#federated-network">federated networks</a> support SRV records to provide address portability, but allowing service users to set up their own domains for the addresses is not as commonly supported by the available server and client software as for email.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="federated-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Federated network</h1><div class="overlay-content"><p>Federated network is provided by several entities that agree upon the standards and operate the network collectively. This allows the users to choose their provider, that will hold their account, their messaging history and contacts, and communicate with other providers' servers on behalf of the user. The examples are email, XMPP, Matrix and Mastodon.</p><p>The advantage of that design is that there is no single organization that all users depend on, and the standards are more difficult to change, unless it benefits all users. There are several disadvantages: 1) the innovation is slower, 2) each user account still depends on a single organization, and in most cases can't move to another provider without changing their network address – there is no <a href="#address-portability">address portability</a>, 3) the security and privacy are inevitably worse than with the centralized networks.</p><p><a href="https://en.wikipedia.org/wiki/Federation_(information_technology)">Federation on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="anonymous-credentials" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Anonymous credentials</h1><div class="overlay-content"><p>The credential that allows proving something, e.g. the right to access some resource, without identifying the user. This credential can either be generated by a trusted party or by the user themselves and provided together with the request to create the resource. The first approach creates some centralized dependency in most cases. The second approach does not require any trust - this is used in SimpleX network to authorize access to the messaging queues.</p><p><a href="https://en.wikipedia.org/wiki/Digital_credential">Digital credential on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="blockchain" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Blockchain</h1><div class="overlay-content"><p>In a wide sense, blockchain means a sequence of blocks of data, where each block contains a cryptographic hash of the previous block, thus providing integrity to the whole chain. Blockchains are used in many communication and information storage systems to provide integrity and immutability of the data. For example, BluRay disks use blockchain. SimpleX messaging queues also use blockchain - each message includes the hash of the previous message, to ensure the integrity – if any message is modified it will be detected by the recipient when the next message is received. Blockchains are a subset of <a href="#merkle-directed-acyclic-graph">Merkle directed acyclic graphs</a>.</p><p>In a more narrow sense, particularly in media, blockchain is used to refer specifically to distributed ledger, where each record also includes the hash of the previous record, but the blocks have to be agreed by the participating peers using some <a href="https://en.wikipedia.org/wiki/Consensus_(computer_science)">consensus protocol</a>.</p><p><a href="https://en.wikipedia.org/wiki/Blockchain">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="merkle-directed-acyclic-graph" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Merkle directed acyclic graph</h1><div class="overlay-content"><p>Also known as Merkle DAG, a data structure based on a general graph structure where node contains the cryptographic hashes of the previous nodes that point to it. Merkle trees are a subset of Merkle DAGs - in this case each leaf contains a cryptographic hash of the parent.</p><p>This structure by design allows to verify the integrity of the whole structure by computing its hashes and comparing with the hashes included in the nodes, in the same way as with <a href="#blockchain">blockchain</a>.</p><p>The motivation to use DAG in distributed environments instead of a simpler linear blockchain is to allow concurrent additions, when there is no requirement for a single order of added items. Merkle DAG is used, for example, in <a href="https://en.wikipedia.org/wiki/InterPlanetary_File_System">IPFS</a> and will be used in decentralized SimpleX groups.</p><p><a href="https://en.wikipedia.org/wiki/Merkle_tree">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="break-in-recovery" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Break-in recovery</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="double-ratchet-algorithm" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Double ratchet algorithm</h1><div class="overlay-content"><p>It is used by two parties to exchange <a href="#end-to-end-encryption">end-to-end encrypted</a> messages. The parties will use some <a href="#key-agreement-protocol">key agreement protocol</a> to agree on the initial shared secret key.</p><p>Double Ratchet algorithm provides <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>. It is <a href="https://signal.org/docs/specifications/doubleratchet">designed by Signal</a>, and used in SimpleX Chat and many other secure messengers. Most experts consider it the state-of-the-art encryption protocol in message encryption.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="centralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Centralized network</h1><div class="overlay-content"><p>Centralized networks are provided or controlled by a single entity. The examples are Threema, Signal, WhatsApp and Telegram. The advantage of that design is that the provider can innovate faster, and has a centralized approach to security. But the disadvantage is that the provider can change or discontinue the service, and leak, sell or disclose in some other way all users' data, including who they are connected with.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="content-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Content padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="decentralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Decentralized network</h1><div class="overlay-content"><p>Decentralized network is often used to mean "the network based on decentralized blockchain". In its original meaning, decentralized network means that there is no central authority or any other point of centralization in the network, other than network protocols specification. The advantage of decentralized networks is that they are resilient to censorship and to the provider going out of business. The disadvantage is that they are often slower to innovate, and the security may be worse than with the centralized network.</p><p>The examples of decentralized networks are email, web, DNS, XMPP, Matrix, BitTorrent, etc. All these examples have a shared global application-level address space. Cryptocurrency blockchains not only have a shared address space, but also a shared state, so they are more centralized than email. Tor network also has a shared global address space, but also a central authority. SimpleX network does not have a shared application-level address space (it relies on the shared transport-level addresses - SMP relay hostnames or IP addresses), and it does not have any central authority or any shared state.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="defense-in-depth" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Defense in depth</h1><div class="overlay-content"><p>Originally, it is a military strategy that seeks to delay rather than prevent the advance of an attacker, buying time and causing additional casualties by yielding space.</p><p>In information security, defense in depth represents the use of multiple computer security techniques to help mitigate the risk of one component of the defense being compromised or circumvented. An example could be anti-virus software installed on individual workstations when there is already virus protection on the firewalls and servers within the same environment.</p><p>SimpleX network applies defense in depth approach to security by having multiple layers for the communication security and privacy:</p><ul>
+<li>double ratchet algorithm for <a href="#end-to-end-encryption">end-to-end encryption</a> with <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>,</li>
+<li>additional layer of end-to-end encryption for each messaging queue and another encryption layer of encryption from the server to the recipient inside TLS to prevent correlation by ciphertext,</li>
+<li>TLS with only strong ciphers allowed,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-server connection via server offline certificate verification,</li>
+<li>mitigation of replay attacks via signing over transport channel binding,</li>
+<li>multiple layers of <a href="#message-padding">message padding</a> to reduce efficiency of traffic analysis,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-client out-of-band channel when sending the invitation,</li>
+<li>rotation of delivery queues to reduce efficiency of traffic analysis,</li>
+<li>etc.</li>
+</ul><p><a href="https://en.wikipedia.org/wiki/Defence_in_depth">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="end-to-end-encryption" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">End-to-end encryption</h1><div class="overlay-content"><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><p>End-to-end encryption requires agreeing cryptographic keys between the sender and the recipient in a way that no eavesdroppers can access the agreed keys. See <a href="#key-agreement-protocol">key agreement protocol</a>. This key exchange can be compromised via <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>, particularly if key exchange happens via the same communication provider and no out-of-band channel is used to verify key exchange.</p><p><a href="https://en.wikipedia.org/wiki/End-to-end_encryption">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-compromise-security" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-compromise security</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="man-in-the-middle-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Man-in-the-middle attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="message-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Message padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="key-agreement-protocol" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key agreement protocol</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="tooltip-end-to-end-encryption" class="glossary-tooltip"><div class="tooltip-content"><h4 class="tooltip-title">End-to-end encryption</h4><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><button class="read-more-btn open-overlay-btn" data-show-overlay="end-to-end-encryption">Read more</button></div></div><div id="key-exchange" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key exchange</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="mitm-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">MITM attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="non-repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Non-repudiation</h1><div class="overlay-content">Non-repudiation</div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="onion-routing" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Onion routing</h1><div class="overlay-content"><p>A technique for anonymous communication over a computer network that uses multiple layers of message encryption, analogous to the layers of an onion. The encrypted data is transmitted through a series of network nodes called "onion routers," each of which "peels" away a single layer, revealing the data's next destination. The sender remains anonymous because each intermediary knows only the location of the immediately preceding and following nodes.</p><p>The most widely used onion network is <a href="https://en.wikipedia.org/wiki/Tor_(network)">Tor</a>.</p><p>Some elements of SimpleX network use similar ideas in their design - different addresses for the same resource used by different parties, and additional encryption layers. Currently though, SimpleX messaging protocol does not protect sender network address, as the relay server is chosen by the recipient. The delivery relays chosen by sender that are planned for the future would make SimpleX design closer to onion routing.</p><p><a href="https://en.wikipedia.org/wiki/Onion_routing">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="overlay-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Overlay network</h1><div class="overlay-content"><p>Nodes in the overlay network can be thought of as being connected by virtual or logical links, each of which corresponds to a path, perhaps through many physical links, in the underlying network. Tor, for example, is an overlay network on top of IP network, which in its turn is also an overlay network over some underlying physical network.</p><p>SimpleX Clients also form a network using SMP relays and IP or some other overlay network (e.g., Tor), to communicate with each other. SMP relays, on another hand, do not form a network.</p><p><a href="https://en.wikipedia.org/wiki/Overlay_network">Wikipedia</a></p><h1>Non-repudiation</h1><p>The property of the cryptographic or communication system that allows the recipient of the message to prove to any third party that the sender identified by some cryptographic key sent the message. It is the opposite to <a href="#repudiation">repudiation</a>. While in some context non-repudiation may be desirable (e.g., for contractually binding messages), in the context of private communications it may be undesirable.</p><p><a href="https://en.wikipedia.org/wiki/Non-repudiation">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Repudiation</h1><div class="overlay-content"><p>The property of the cryptographic or communication system that allows the sender of the message to plausibly deny having sent the message, because while the recipient can verify that the message was sent by the sender, they cannot prove it to any third party - the recipient has a technical ability to forge the same encrypted message. This is an important quality of private communications, as it allows to have the conversation that can later be denied, similarly to having a private face-to-face conversation.</p><p>See also <a href="#non-repudiation">non-repudiation</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="pairwise-pseudonymous-identifier" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Pairwise pseudonymous identifier</h1><div class="overlay-content"><p>Generalizing <a href="https://csrc.nist.gov/glossary/term/pairwise_pseudonymous_identifier">the definition</a> from NIST Digital Identity Guidelines, it is an opaque unguessable identifier generated by a service used to access a resource by only one party.</p><p>In the context of SimpleX network, these are the identifiers generated by SMP relays to access anonymous messaging queues, with a separate identifier (and access credential) for each accessing party: recipient, sender and and optional notifications subscriber. The same approach is used by XFTP relays to access file chunks, with separate identifiers (and access credentials) for sender and each recipient.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Peer-to-peer</h1><div class="overlay-content"><p>Peer-to-peer (P2P) is the network architecture when participants have equal rights and communicate directly via a general purpose transport or overlay network. Unlike client-server architecture, all peers in a P2P network both provide and consume the resources. In the context of messaging, P2P architecture usually means that the messages are sent between peers, without user accounts or messages being stored on any servers. Examples are Tox, Briar, Cwtch and many others.</p><p>The advantage is that the participants do not depend on any servers. There are <a href="./SIMPLEX.md#comparison-with-p2p9-messaging-protocols">multiple downsides</a> to that architecture, such as no asynchronous message delivery, the need for network-wide peer addresses, possibility of network-wide attacks, that are usually mitigated only by using a centralized authority. These disadvantages are avoided with <a href="#proxied-peer-to-peer">proxied P2P</a> architecture.</p><p><a href="https://en.wikipedia.org/wiki/Peer-to-peer">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="proxied-peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Proxied peer-to-peer</h1><div class="overlay-content"><p>Network topology of the communication system when peers communicate via proxies that do not form the network themselves. Such design is used in Pond, that has a fixed home server for each user, and in SimpleX, that uses multiple relays providing temporary connections.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="perfect-forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Perfect forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-cryptography" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum cryptography</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-hybrid-crypto" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum hybrid crypto</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="recovery-from-compromise" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Recovery from compromise</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="user-identity" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">User identity</h1><div class="overlay-content"><p>In a communication system it refers to anything that uniquely identifies the users to the network. Depending on the communication network, it can be a phone number, email address, username, public key or a random opaque identifier. Most messaging networks rely on some form of user identity. SimpleX appears to be the only messaging network that does not rely on any kind of user identity - see <a href="https://en.wikipedia.org/wiki/Comparison_of_instant_messaging_protocols">this comparison</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div></body></html>
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+                            </svg>
+                        </a>
+                        <a href="https://twitter.com/simplexchat" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 41 41" fill="none" xmlns="http://www.w3.org/2000/svg">
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+                            </svg>
+                        </a>
+                        <a href="https://www.linkedin.com/company/simplex-chat/" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 41 41" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M20.0408 0.926758C8.9951 0.926758 0.0407715 9.88109 0.0407715 20.9268C0.0407715 31.9724 8.9951 40.9268 20.0408 40.9268C31.0864 40.9268 40.0408 31.9724 40.0408 20.9268C40.0408 9.88109 31.0864 0.926758 20.0408 0.926758ZM9.6421 17.4916H14.1745V31.1098H9.6421V17.4916ZM14.4731 13.279C14.4437 11.9438 13.4889 10.9268 11.9383 10.9268C10.3878 10.9268 9.3741 11.9438 9.3741 13.279C9.3741 14.5866 10.3579 15.6328 11.8794 15.6328H11.9084C13.4889 15.6328 14.4731 14.5866 14.4731 13.279ZM25.3017 17.1718C28.2843 17.1718 30.5203 19.1187 30.5203 23.3015L30.5201 31.1098H25.9879V23.824C25.9879 21.994 25.3319 20.7453 23.6912 20.7453C22.439 20.7453 21.6932 21.5871 21.3656 22.4003C21.2458 22.6916 21.2164 23.0976 21.2164 23.5046V31.1101H16.6834C16.6834 31.1101 16.7431 18.7698 16.6834 17.492H21.2164V19.4208C21.8179 18.4936 22.8953 17.1718 25.3017 17.1718Z" />
+                            </svg>
+                        </a>
+                        <a href="https://simplex.chat/feed.rss" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 512 512" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M256 512C397.385 512 512 397.385 512 256C512 114.615 397.385 0 256 0C114.615 0 0 114.615 0 256C0 397.385 114.615 512 256 512ZM132.791 157.572C215.586 161.137 279.503 196.841 323.612 267.517C344.138 302.436 354.186 339.959 354.57 380.122H406.814C409.639 231.301 280.977 103.1 132.791 106.05V157.572ZM309.994 343.843C311.593 356.035 313.096 367.877 314.65 380.116H261.161C260.496 344.968 248.303 314.452 223.472 289.485C198.613 264.491 168.097 252.282 132.755 251.38V199.743C198.318 196.346 288.694 244.344 309.994 343.843ZM132.766 336.706C129.293 354.261 137.796 370.323 154.848 378.004L155.461 378.242C156.267 378.558 156.912 378.81 157.577 378.985C173.012 383.066 186.298 379.318 196.604 367.168C206.463 355.544 208.397 342.145 201.87 328.354C195.205 314.271 183.419 307.215 167.834 307.356C151.188 307.509 135.971 320.504 132.766 336.706Z" />
+                            </svg>
+                        </a>
+                    </div>
+                </div>
+            </article>
+        </div>
+        <a href="#" class="text-grey-black dark:text-white text-[16px] text-center lg:ltr:text-left lg:rtl:text-right font-medium leading-[28px] tracking-[0.01em] block mt-[60px]">© 2020-2025 SimpleX Chat | Open-Source Project</a>
+    </div>
+</section>
+
+
+        <script src="/js/swiper-bundle.min.js"></script>
+        <script src="/js/script.js"></script>
+    </body>
+</html>
diff --git a/fr/contact/index.html b/fr/contact/index.html
index 0fa2319bcf..9fef354bfb 100644
--- a/fr/contact/index.html
+++ b/fr/contact/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/fr/fdroid/index.html b/fr/fdroid/index.html
index 4ea4229c1a..c4ce4723ef 100644
--- a/fr/fdroid/index.html
+++ b/fr/fdroid/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/fr/file/index.html b/fr/file/index.html
new file mode 100644
index 0000000000..dbe432457b
--- /dev/null
+++ b/fr/file/index.html
@@ -0,0 +1,888 @@
+<!DOCTYPE html>
+<html lang="fr"
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+            dir="ltr"
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    >
+    <head>
+        <meta charset="UTF-8">
+        <meta http-equiv="X-UA-Compatible" content="IE=edge">
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        <title>SimpleX File Transfer</title>
+        <meta name="description" content="Send files securely with end-to-end encryption"/>
+        <meta name="Content-Type" content="text/html;charset=utf-8"/>
+        
+        <meta http-equiv="onion-location" content="http://isdb4l77sjqoy2qq7ipum6x3at6hyn3jmxfx4zdhc72ufbmuq4ilwkqd.onion/" />
+        <meta property="og:url" content="https://simplex.chat/" />
+        
+        <meta property="og:type" content="website"/>
+        <meta property="og:title" content="SimpleX File Transfer"/>
+        <meta property="og:description" content="Send files securely with end-to-end encryption"/>
+        <meta property="og:image" content="https://simplex.chat/img/share_simplex.jpg"/>
+        <meta name="twitter:card" content="summary"/>
+        <link rel="icon" type="image/png" sizes="96x96" href="/img/favicon.ico"/>
+
+        <link rel="stylesheet" href="/css/swiper-bundle.min.css">
+        <link rel="stylesheet" href="/css/blog.css">
+        <link href="/css/tailwind.css" rel="stylesheet"/>
+        <link rel="stylesheet" href="/css/style.css">
+        <link rel="stylesheet" href="/css/design3-nav.css">
+        <script async defer src="https://buttons.github.io/buttons.js"></script>
+        <script src="/js/flag-anchor.js"></script>
+        
+    </head>
+    <body class="bg-[#F3FAFF] dark:bg-[#000832]">
+        
+
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+        
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+
+<header id="navbar">
+    <a href="/fr" class="logo logo-light ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-light.png" alt="logo"></a>
+    <a href="/fr" class="logo logo-dark ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-dark.png" alt="logo"></a>
+
+    <nav id="menu">
+        <ul>
+            <li class="nav-link ">
+                <a href="/fr">
+                    <span class="nav-link-text">Accueil</span>
+                </a>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/directory/">
+                    <span class="nav-link-text">Dossier</span>
+                </a>
+            </li>
+
+            
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">Guide</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    
+                        <li><a href="/docs/guide/readme.html" class="">Prise en main</a></li>
+                    
+                        <li><a href="/docs/guide/send-messages.html" class="">Envoi de messages</a></li>
+                    
+                        <li><a href="/docs/guide/secret-groups.html" class="">Groupes secrets</a></li>
+                    
+                        <li><a href="/docs/guide/chat-profiles.html" class="">Profils de chat</a></li>
+                    
+                        <li><a href="/docs/guide/managing-data.html" class="">Gestion des données</a></li>
+                    
+                        <li><a href="/docs/guide/audio-video-calls.html" class="">Appels audio et vidéo</a></li>
+                    
+                        <li><a href="/docs/guide/privacy-security.html" class="">Protection de la vie privée et sécurité</a></li>
+                    
+                        <li><a href="/docs/guide/app-settings.html" class="">Paramètres de l'app</a></li>
+                    
+                        <li><a href="/docs/guide/making-connections.html" class="">Établir des connexions</a></li>
+                    
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">Référence</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md"
+                        target="_blank">Whitepaper
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/privacy">Politique de confidentialité</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/simplex-messaging.md"
+                        target="_blank">Protocole SMP
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/protocol/simplex-chat.html">Protocole de chat</a></li>
+                    <li><a href="/docs/glossary.html">Glossaire</a></li>
+
+                    <hr>
+
+                    
+                        <li><a href="/docs/simplex.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Plateforme SimpleX</a></li>
+                    
+                        <li><a href="/docs/business.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX pour les entreprises</a></li>
+                    
+                        <li><a href="/docs/directory.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Service de répertoire SimpleX</a></li>
+                    
+                        <li><a href="/docs/android.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Accéder aux fichiers Android</a></li>
+                    
+                        <li><a href="/docs/server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Hébergement d'un serveur SMP</a></li>
+                    
+                        <li><a href="/docs/xftp-server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Hébergement d'un serveur XFTP</a></li>
+                    
+                        <li><a href="/docs/webrtc.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Serveurs WebRTC</a></li>
+                    
+                        <li><a href="/downloads/" class=" lg:px-[20px] inline-block whitespace-nowrap">Téléchargements</a></li>
+                    
+                        <li><a href="/reproduce/" class=" lg:px-[20px] inline-block whitespace-nowrap">Verify & reproduce builds</a></li>
+                    
+                        <li><a href="/transparency/" class=" lg:px-[20px] inline-block whitespace-nowrap">Transparence</a></li>
+                    
+                        <li><a href="/security/" class=" lg:px-[20px] inline-block whitespace-nowrap">Sécurité</a></li>
+                    
+                        <li><a href="/faq/" class=" lg:px-[20px] inline-block whitespace-nowrap">FAQ</a></li>
+                    
+
+                    <hr>
+
+                    <li><a href="/docs/translations.html"
+                    >Traduire SimpleX Chat
+                    </a></li>
+                    <li><a href="/docs/android.html"
+                    >Accéder aux fichiers Android
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/blob/stable/apps/simplex-bot-advanced/Main.hs"
+                        target="_blank">Exemple de chatbot
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/tree/stable/packages/simplex-chat-client/typescript"
+                        target="_blank">TypeScript SDK
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/cli.html">Terminal CLI</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq"
+                        target="_blank">SimpleXMQ
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/blog">
+                    <span class="nav-link-text">Blog</span>
+                </a>
+            </li>
+        </ul>
+    </nav>
+
+    <div class="right-links">
+        
+            <a class="box-btn token md:hidden" href="/donate">
+                Faire un don
+            </a>
+        
+        <button href="#" class="theme-switch-btn">
+            <svg class="sun" width="469" height="469" viewBox="0 0 469 469" fill="none" xmlns="http://www.w3.org/2000/svg">
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+            </svg>
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+        <button id="cross-btn" class="nav-toggle-btn">
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+</header>
+<div id="mobile-header">
+    <a href="/fr" class="logo flex dark:hidden ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-light.svg" alt="" srcset=""></a>
+    <a href="/fr" class="logo hidden dark:flex ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-dark.svg" alt="" srcset=""></a>
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+    <button id="hamburger" class="nav-toggle-btn">
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+        </svg>
+    </button>
+</div>
+
+
+<script>
+// switch theme
+const sunIcon = document.querySelector('.sun');
+const moonIcon = document.querySelector('.moon');
+
+const userTheme = localStorage.getItem('theme');
+const systemTheme = window.matchMedia('(prefers-color-scheme: dark)').matches;
+const prismThemeLink = document.getElementById('prism-theme')
+
+function iconToggle () {
+    sunIcon.classList.toggle('hidden');
+    moonIcon.classList.toggle('hidden');
+}
+
+function themeCheck() {
+    if (userTheme === 'dark' || (!userTheme && systemTheme)) {
+        document.documentElement.classList.add('dark');
+        moonIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+    }
+    else{
+        sunIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+    }
+}
+themeCheck();
+
+function themeSwitch () {
+    if (document.documentElement.classList.contains('dark')) {
+        document.documentElement.classList.remove('dark');
+        localStorage.setItem('theme', 'light');
+        if(prismThemeLink){
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
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+        document.documentElement.classList.add('dark');
+        localStorage.setItem('theme', 'dark');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+        iconToggle();
+    }
+}
+
+const nav = document.querySelector('header#navbar');
+
+window.addEventListener('click',(e)=>{
+    if(e.target.closest('.nav-link')){
+        if(e.target.closest('.nav-link').classList.contains('active')){
+            e.target.closest('.nav-link').classList.remove('active');
+        }
+        else{
+            document.querySelectorAll('.nav-link').forEach(el => el.classList.remove('active'))
+            e.target.closest('.nav-link').classList.add('active');
+        }
+    }
+    else if(e.target.closest('.nav-toggle-btn')){
+        if(nav.classList.contains('open')){
+            nav.classList.remove('open');
+            document.getElementById('mobile-header').classList.remove('nav-open');
+            document.documentElement.classList.remove('lock-scroll');
+        }
+        else{
+            document.documentElement.classList.add('lock-scroll');
+            document.getElementById('mobile-header').classList.add('nav-open');
+            nav.classList.add('open');
+        }
+    }
+    else if(e.target.closest('.theme-switch-btn')){
+        themeSwitch();
+    }
+});
+</script>
+
+        <html><head><link rel="stylesheet" href="/file-assets/index.css">
+<style>
+  /* Reset website .card styles that conflict with xftp bundle */
+  #app .card { cursor: default; }
+  #app .card,
+  #app .card > div { transition: unset; height: auto; }
+  #app .card > div > * { opacity: unset; max-height: unset; transform: unset; transition: unset; }
+
+  /* Align xftp bundle with website design */
+  #app { font-family: inherit; color: #3F484B; max-width: 600px; width: 100%; margin: 0 auto; padding: 0; }
+  #app .card { background: transparent; box-shadow: none; padding: 0; border-radius: 0; }
+  #app .card > h1 { display: none; }
+  .dark #app h1 { color: #fff; }
+  #app .drop-zone { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; }
+  #app .drop-zone.drag-over { border-color: #0053D0; background: #DBEEFF; }
+  #app .btn { background: #0053D0; border-radius: 34px; padding: 12px 32px; font-size: .9rem; font-weight: 600; }
+  #app .btn:hover { background: #1661D1; }
+  #app .btn-secondary { background: #6b7280; border-radius: 34px; }
+  #app .hint { color: #6b7280; }
+  #app .link-row input { border-radius: 8px; border-color: #c5d3de; }
+  #app .security-note { background: #ffffff; border-radius: 12px; color: #3F484B; }
+  #app .security-note a { color: #0197FF; }
+  #app .success { color: #0053D0; }
+
+  .dark #app { color: #e5e7eb; }
+  .dark #app .card { background: transparent; box-shadow: none; }
+  .dark #app .drop-zone { border-color: #374151; }
+  .dark #app .drop-zone.drag-over { border-color: #70F0F9; background: #1B325C; }
+  .dark #app .btn { background: #70F0F9; color: #000832; }
+  .dark #app .btn:hover { background: #66D9E2; }
+  .dark #app .link-row input { border-color: #374151; background: #071C46; color: #e5e7eb; }
+  .dark #app .security-note { background: #0B2A59; color: #d1d5db; }
+  .dark #app .security-note a { color: #70F0F9; }
+  .dark #app .success { color: #70F0F9; }
+
+  #app #upload-error { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; text-align: center; }
+  .dark #app #upload-error { border-color: #374151; }
+
+  #app .stage > .btn { margin-top: 20px; }
+  #app .security-note { margin-top: 20px; }
+  #app .drop-zone .btn { margin: 10px 0 16px; }
+
+  /* Protocol overlay: image fixed, text scrolls natively */
+  /* Push popup below navbar at all widths */
+  #xftp-protocol { padding-top: 70px; }
+  #xftp-protocol .overlay-card {
+    display: flex;
+    flex-direction: column;
+    position: relative;
+    overflow: hidden;
+  }
+  @media (min-width: 768px) {
+    #xftp-protocol .overlay-card { max-height: min(660px, 100%); }
+  }
+  #xftp-protocol .overlay-card > h1 {
+    flex-shrink: 0;
+    padding-bottom: 16px;
+    margin-bottom: 0;
+    z-index: 1;
+  }
+  @media (min-width: 1024px) and (max-height: 750px) {
+    #xftp-protocol .overlay-card > h1 {
+      font-size: 22px;
+    }
+  }
+  /* .flex is the full-width scroll container */
+  #xftp-protocol .overlay-card > .flex {
+    flex: 1;
+    min-height: 0;
+    overflow-y: auto;
+    scrollbar-width: thin;
+    scrollbar-color: #c5d3de transparent;
+  }
+  .dark #xftp-protocol .overlay-card > .flex {
+    scrollbar-color: #374151 transparent;
+  }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar { width: 6px; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-track { background: transparent; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #c5d3de; border-radius: 3px; }
+  .dark #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #374151; }
+  /* Desktop: text stays left, image fixed on right */
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card > .flex > div:first-child {
+      max-width: 50%;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child {
+      position: absolute;
+      right: 56px;
+      top: 0;
+      bottom: 0;
+      left: 55%;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      pointer-events: none;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child > div {
+      height: 100%;
+      padding: 40px 0;
+      box-sizing: border-box;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child img {
+      height: 100%;
+    }
+  }
+  #xftp-protocol .close-overlay-btn {
+    position: absolute;
+    top: 24px;
+    right: 24px;
+    cursor: pointer;
+    z-index: 3;
+    fill: #606C71;
+  }
+  .dark #xftp-protocol .close-overlay-btn { fill: #e5e7eb; }
+  /* Scroll fade: gradient over text area only, hidden at bottom */
+  #xftp-protocol .overlay-card::after {
+    content: '';
+    position: absolute;
+    bottom: 40px;
+    left: 24px;
+    right: 24px;
+    height: 48px;
+    background: linear-gradient(rgba(255,255,255,0), #fff);
+    pointer-events: none;
+    z-index: 2;
+    transition: opacity 0.2s;
+  }
+  .dark #xftp-protocol .overlay-card::after {
+    background: linear-gradient(rgba(7,28,70,0), #071C46);
+  }
+  @media (min-width: 640px) {
+    #xftp-protocol .overlay-card::after { bottom: 56px; left: 56px; right: 56px; }
+  }
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card::after { right: 55%; }
+  }
+  #xftp-protocol.scrolled-bottom .overlay-card::after { opacity: 0; }
+  #xftp-protocol .overlay-card.flex,
+  #xftp-protocol.flex .overlay-card { animation: overlaySlideIn 0.25s ease-out; }
+  @keyframes overlaySlideIn {
+    from { opacity: 0; transform: scale(0.95) translateY(10px); }
+    to { opacity: 1; transform: scale(1) translateY(0); }
+  }
+  #xftp-protocol.overlay-closing { animation: overlayFadeOut 0.2s ease-in forwards; }
+  #xftp-protocol.overlay-closing .overlay-card { animation: overlaySlideOut 0.2s ease-in forwards; }
+  @keyframes overlayFadeOut {
+    from { opacity: 1; }
+    to { opacity: 0; }
+  }
+  @keyframes overlaySlideOut {
+    from { opacity: 1; transform: scale(1) translateY(0); }
+    to { opacity: 0; transform: scale(0.95) translateY(10px); }
+  }
+
+  .file-proto-link {
+    font-size: 1.25rem;
+    font-weight: 600;
+    background: linear-gradient(90deg, #001aa7 0%, #0095e7 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+    text-decoration: none;
+  }
+  .dark .file-proto-link {
+    background: linear-gradient(90deg, #019bfe 0%, #64fdff 58%, #c8feff 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+  }
+
+</style>
+
+</head><body><section class="bg-secondary-bg-light dark:bg-primary-bg-dark py-10 mt-[66px] px-5">
+  <div class="container flex flex-col items-center mx-auto">
+    <noscript>
+      <p class="text-center text-grey-black dark:text-white py-10">
+        JavaScript is required for file transfer.
+      </p>
+    </noscript>
+    <h1 class="text-[38px] text-center font-bold text-active-blue mb-8">SimpleX File Transfer</h1>
+    <div id="app" data-xftp-app="" data-no-hashchange="" class="w-full">
+      <div class="card">
+        <div class="drop-zone">
+          <p>Drag &amp; drop a file here</p>
+          <p class="hint">or</p>
+          <span class="btn">Choose file</span>
+          <p class="hint">Max 100 MB - <a href="#join-simplex">SimpleX Chat app</a> supports files up to 1 GB</p>
+        </div>
+      </div>
+    </div>
+    <template id="dl-placeholder">
+      <div class="card">
+        <h1>SimpleX File Transfer</h1>
+        <div class="stage">
+          <p>File available</p>
+          <button class="btn">Download</button>
+          <div class="security-note">
+            <p>This file is encrypted - data routers never see file contents, name or size.</p>
+            <p>The encryption key is in the link’s hash fragment - it is never sent to any server.</p>
+            <p>For better security, use <a href="https://simplex.chat/download">SimpleX Chat</a> app.</p>
+          </div>
+        </div>
+      </div>
+    </template>
+    <script>if(location.hash.length>50){var a=document.getElementById("app"),t=document.getElementById("dl-placeholder");if(a&&t)a.replaceChildren(t.content.cloneNode(true))}</script>
+    <script type="module" src="/file-assets/index.js"></script>
+
+    <p class="text-base text-center text-grey-black dark:text-white mt-10 max-w-[600px]">Send files securely with <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span> — no accounts, no tracking.</p>
+    <a href="javascript:void(0)" data-show-overlay="xftp-protocol" class="open-overlay-btn file-proto-link mt-3 block text-center">Learn more about XFTP protocol</a>
+  </div>
+</section>
+
+<section class="bg-primary-bg-light dark:bg-secondary-bg-dark py-[90px] px-5">
+  <div class="container flex flex-col items-center mx-auto text-center">
+    <h2 class="text-[35px] leading-[45px] md:text-[45px] md:leading-[55px] text-grey-black dark:text-white font-bold mb-5">
+      Get SimpleX Chat — the most secure &amp; private messenger
+    </h2>
+    <p class="text-base text-grey-black dark:text-white mb-14 max-w-[600px]">
+      The file transfer you just used uses the same data routing protocol as SimpleX Chat. The app has end-to-end encrypted messaging, voice and video calls, groups, and sending files. No account. No phone. No email. No user profile IDs.
+    </p>
+    <div class="flex items-center justify-center gap-4 flex-wrap">
+      <a href="https://apps.apple.com/us/app/simplex-chat/id1605771084" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apple_store.svg"></a>
+      <a href="https://play.google.com/store/apps/details?id=chat.simplex.app" target="_blank"><img class="h-[40px] w-auto" src="/img/new/google_play.svg"></a>
+      <a href="/fr/fdroid"><img class="h-[40px] w-auto" src="/img/new/f_droid.svg"></a>
+      <a href="https://testflight.apple.com/join/DWuT2LQu" target="_blank"><img class="h-[40px] w-auto" src="/img/new/testflight.png"></a>
+      <a href="https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-aarch64.apk" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apk_icon.png"></a>
+    </div>
+  </div>
+</section>
+
+
+  
+    
+    <div id="xftp-protocol" data-scroll-to="" class="overlay hidden fixed top-0 left-0 bottom-0 right-0 before:absolute before:w-full before:h-full bg-transparent before:bg-secondary-bg-light dark:before:bg-primary-bg-dark before:opacity-90 items-center justify-center p-3 md:p-10 z-[10000]">
+        <div class="overlay-card w-full md:w-fit md:max-w-[1276px] bg-white dark:bg-card-bg-dark opacity-100 h-full md:h-fit md:max-h-[660px] z-[10001] rounded-md shadow-[0px_3px_12px_rgba(0,0,0,0.2)] p-6 py-10 sm:p-14 overflow-auto scale-100">
+            <h1 class="text-3xl font-bold text-active-blue mb-6 ">XFTP protocol: the most secure file transfer</h1>
+            <div class="flex flex-col-reverse lg:flex-row gap-10 justify-between">
+                
+                    <div class="lg:max-w-[448px]">
+                        <div class="text-grey-black dark:text-white flex flex-col gap-6 text-base">
+                            <div>
+  <h3 class="font-bold text-lg mb-2">No account required</h3>
+  <p>Each file fragment uses a new random key. Data routers have no "users" or "files" - they transfer encrypted file fragments of fixed sizes.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Triple-encrypted in your browser</h3>
+  <p>File encryption key is present only in the URL hash fragment - your browser never sends it to a server. There are 3 encryption layers: TLS transport, per-recipient encryption (unique ephemeral key per transfer), and file <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span>.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Independent data routers</h3>
+  <p>When file is split to fragments, it is sent via network routers operated by independent parties. No operator can see the actual file size or name. Even if a router is compromised, it can only see encrypted fragments of fixed size. File fragments are cached by network routers for approximately 48 hours.</p>
+</div>
+<p class="mt-4">
+  <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/xftp.md" target="_blank" rel="noopener" class="text-active-blue hover:underline">
+    Read the XFTP protocol specification →
+  </a>
+</p>
+
+                        </div>
+                    </div>
+                
+
+                
+                    <div class="max-w-[448px]">
+                        <div class="flex items-center justify-center">
+                            <img class="w-full max-w-[448px] min-w-[300px] dark:hidden" src="/img/new/xftp-protocol.svg" alt="">
+                            <img class="w-full max-w-[448px] min-w-[300px] hidden dark:block" src="/img/new/xftp-protocol-dark.svg" alt="">
+                        </div>
+                    </div>
+                
+            </div>
+
+            <svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+                <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z"></path>
+            </svg>
+        </div>
+    </div>
+
+
+
+<script>
+  window.__XFTP_I18N__ = {
+    "title": "SimpleX File Transfer",
+    "dropZone": "Drag & drop a file here",
+    "dropZoneHint": "or",
+    "chooseFile": "Choose file",
+    "maxSizeHint": "Max 100 MB - <a href=\"#join-simplex\">SimpleX Chat app</a> supports files up to 1 GB",
+    "encrypting": "Encrypting…",
+    "uploading": "Uploading…",
+    "cancel": "Cancel",
+    "fileUploaded": "File uploaded",
+    "copy": "Copy",
+    "copied": "Copied!",
+    "share": "Share",
+    "expiryHint": "Files are typically available for 48 hours.",
+    "securityNote1": "Your file was encrypted in the browser - data routers never see file contents, name or size.",
+    "securityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "securityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "retry": "Retry",
+    "downloading": "Downloading…",
+    "decrypting": "Decrypting…",
+    "downloadComplete": "Download complete",
+    "download": "Download",
+    "fileTooLarge": "File too large (%size%). Maximum is 100 MB. The <a href=\"#join-simplex\">SimpleX app</a> supports files up to 1 GB.",
+    "fileEmpty": "File is empty.",
+    "invalidLink": "Invalid or corrupted link.",
+    "initError": "Failed to initialize: %error%",
+    "fileAvailable": "File available (~%size%)",
+    "dlSecurityNote1": "This file is encrypted - data routers never see file contents, name or size.",
+    "dlSecurityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "dlSecurityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "workersRequired": "Web Workers required — update your browser"
+  }
+</script>
+
+<script>
+  // Intercept close for #xftp-protocol to add fade-out animation
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+  // Hide scroll fade gradient when text bottom is visible (works with column-reverse)
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+
+<div id="address-portability" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Address portability</h1><div class="overlay-content"><p>Similarly to <a href="https://en.wikipedia.org/wiki/Local_number_portability">phone number portability</a> (the ability of the customer to transfer the service to another provider without changing the number), the address portability means the ability of a communication service customer to change the service provider without changing the service address. Many <a href="#federated-network">federated networks</a> support SRV records to provide address portability, but allowing service users to set up their own domains for the addresses is not as commonly supported by the available server and client software as for email.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="federated-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Federated network</h1><div class="overlay-content"><p>Federated network is provided by several entities that agree upon the standards and operate the network collectively. This allows the users to choose their provider, that will hold their account, their messaging history and contacts, and communicate with other providers' servers on behalf of the user. The examples are email, XMPP, Matrix and Mastodon.</p><p>The advantage of that design is that there is no single organization that all users depend on, and the standards are more difficult to change, unless it benefits all users. There are several disadvantages: 1) the innovation is slower, 2) each user account still depends on a single organization, and in most cases can't move to another provider without changing their network address – there is no <a href="#address-portability">address portability</a>, 3) the security and privacy are inevitably worse than with the centralized networks.</p><p><a href="https://en.wikipedia.org/wiki/Federation_(information_technology)">Federation on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="anonymous-credentials" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Anonymous credentials</h1><div class="overlay-content"><p>The credential that allows proving something, e.g. the right to access some resource, without identifying the user. This credential can either be generated by a trusted party or by the user themselves and provided together with the request to create the resource. The first approach creates some centralized dependency in most cases. The second approach does not require any trust - this is used in SimpleX network to authorize access to the messaging queues.</p><p><a href="https://en.wikipedia.org/wiki/Digital_credential">Digital credential on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="blockchain" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Blockchain</h1><div class="overlay-content"><p>In a wide sense, blockchain means a sequence of blocks of data, where each block contains a cryptographic hash of the previous block, thus providing integrity to the whole chain. Blockchains are used in many communication and information storage systems to provide integrity and immutability of the data. For example, BluRay disks use blockchain. SimpleX messaging queues also use blockchain - each message includes the hash of the previous message, to ensure the integrity – if any message is modified it will be detected by the recipient when the next message is received. Blockchains are a subset of <a href="#merkle-directed-acyclic-graph">Merkle directed acyclic graphs</a>.</p><p>In a more narrow sense, particularly in media, blockchain is used to refer specifically to distributed ledger, where each record also includes the hash of the previous record, but the blocks have to be agreed by the participating peers using some <a href="https://en.wikipedia.org/wiki/Consensus_(computer_science)">consensus protocol</a>.</p><p><a href="https://en.wikipedia.org/wiki/Blockchain">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="merkle-directed-acyclic-graph" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Merkle directed acyclic graph</h1><div class="overlay-content"><p>Also known as Merkle DAG, a data structure based on a general graph structure where node contains the cryptographic hashes of the previous nodes that point to it. Merkle trees are a subset of Merkle DAGs - in this case each leaf contains a cryptographic hash of the parent.</p><p>This structure by design allows to verify the integrity of the whole structure by computing its hashes and comparing with the hashes included in the nodes, in the same way as with <a href="#blockchain">blockchain</a>.</p><p>The motivation to use DAG in distributed environments instead of a simpler linear blockchain is to allow concurrent additions, when there is no requirement for a single order of added items. Merkle DAG is used, for example, in <a href="https://en.wikipedia.org/wiki/InterPlanetary_File_System">IPFS</a> and will be used in decentralized SimpleX groups.</p><p><a href="https://en.wikipedia.org/wiki/Merkle_tree">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="break-in-recovery" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Break-in recovery</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="double-ratchet-algorithm" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Double ratchet algorithm</h1><div class="overlay-content"><p>It is used by two parties to exchange <a href="#end-to-end-encryption">end-to-end encrypted</a> messages. The parties will use some <a href="#key-agreement-protocol">key agreement protocol</a> to agree on the initial shared secret key.</p><p>Double Ratchet algorithm provides <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>. It is <a href="https://signal.org/docs/specifications/doubleratchet">designed by Signal</a>, and used in SimpleX Chat and many other secure messengers. Most experts consider it the state-of-the-art encryption protocol in message encryption.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="centralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Centralized network</h1><div class="overlay-content"><p>Centralized networks are provided or controlled by a single entity. The examples are Threema, Signal, WhatsApp and Telegram. The advantage of that design is that the provider can innovate faster, and has a centralized approach to security. But the disadvantage is that the provider can change or discontinue the service, and leak, sell or disclose in some other way all users' data, including who they are connected with.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="content-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Content padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="decentralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Decentralized network</h1><div class="overlay-content"><p>Decentralized network is often used to mean "the network based on decentralized blockchain". In its original meaning, decentralized network means that there is no central authority or any other point of centralization in the network, other than network protocols specification. The advantage of decentralized networks is that they are resilient to censorship and to the provider going out of business. The disadvantage is that they are often slower to innovate, and the security may be worse than with the centralized network.</p><p>The examples of decentralized networks are email, web, DNS, XMPP, Matrix, BitTorrent, etc. All these examples have a shared global application-level address space. Cryptocurrency blockchains not only have a shared address space, but also a shared state, so they are more centralized than email. Tor network also has a shared global address space, but also a central authority. SimpleX network does not have a shared application-level address space (it relies on the shared transport-level addresses - SMP relay hostnames or IP addresses), and it does not have any central authority or any shared state.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="defense-in-depth" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Defense in depth</h1><div class="overlay-content"><p>Originally, it is a military strategy that seeks to delay rather than prevent the advance of an attacker, buying time and causing additional casualties by yielding space.</p><p>In information security, defense in depth represents the use of multiple computer security techniques to help mitigate the risk of one component of the defense being compromised or circumvented. An example could be anti-virus software installed on individual workstations when there is already virus protection on the firewalls and servers within the same environment.</p><p>SimpleX network applies defense in depth approach to security by having multiple layers for the communication security and privacy:</p><ul>
+<li>double ratchet algorithm for <a href="#end-to-end-encryption">end-to-end encryption</a> with <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>,</li>
+<li>additional layer of end-to-end encryption for each messaging queue and another encryption layer of encryption from the server to the recipient inside TLS to prevent correlation by ciphertext,</li>
+<li>TLS with only strong ciphers allowed,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-server connection via server offline certificate verification,</li>
+<li>mitigation of replay attacks via signing over transport channel binding,</li>
+<li>multiple layers of <a href="#message-padding">message padding</a> to reduce efficiency of traffic analysis,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-client out-of-band channel when sending the invitation,</li>
+<li>rotation of delivery queues to reduce efficiency of traffic analysis,</li>
+<li>etc.</li>
+</ul><p><a href="https://en.wikipedia.org/wiki/Defence_in_depth">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="end-to-end-encryption" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">End-to-end encryption</h1><div class="overlay-content"><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><p>End-to-end encryption requires agreeing cryptographic keys between the sender and the recipient in a way that no eavesdroppers can access the agreed keys. See <a href="#key-agreement-protocol">key agreement protocol</a>. This key exchange can be compromised via <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>, particularly if key exchange happens via the same communication provider and no out-of-band channel is used to verify key exchange.</p><p><a href="https://en.wikipedia.org/wiki/End-to-end_encryption">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-compromise-security" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-compromise security</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="man-in-the-middle-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Man-in-the-middle attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="message-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Message padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="key-agreement-protocol" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key agreement protocol</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="tooltip-end-to-end-encryption" class="glossary-tooltip"><div class="tooltip-content"><h4 class="tooltip-title">End-to-end encryption</h4><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><button class="read-more-btn open-overlay-btn" data-show-overlay="end-to-end-encryption">Read more</button></div></div><div id="key-exchange" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key exchange</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="mitm-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">MITM attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="non-repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Non-repudiation</h1><div class="overlay-content">Non-repudiation</div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="onion-routing" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Onion routing</h1><div class="overlay-content"><p>A technique for anonymous communication over a computer network that uses multiple layers of message encryption, analogous to the layers of an onion. The encrypted data is transmitted through a series of network nodes called "onion routers," each of which "peels" away a single layer, revealing the data's next destination. The sender remains anonymous because each intermediary knows only the location of the immediately preceding and following nodes.</p><p>The most widely used onion network is <a href="https://en.wikipedia.org/wiki/Tor_(network)">Tor</a>.</p><p>Some elements of SimpleX network use similar ideas in their design - different addresses for the same resource used by different parties, and additional encryption layers. Currently though, SimpleX messaging protocol does not protect sender network address, as the relay server is chosen by the recipient. The delivery relays chosen by sender that are planned for the future would make SimpleX design closer to onion routing.</p><p><a href="https://en.wikipedia.org/wiki/Onion_routing">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="overlay-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Overlay network</h1><div class="overlay-content"><p>Nodes in the overlay network can be thought of as being connected by virtual or logical links, each of which corresponds to a path, perhaps through many physical links, in the underlying network. Tor, for example, is an overlay network on top of IP network, which in its turn is also an overlay network over some underlying physical network.</p><p>SimpleX Clients also form a network using SMP relays and IP or some other overlay network (e.g., Tor), to communicate with each other. SMP relays, on another hand, do not form a network.</p><p><a href="https://en.wikipedia.org/wiki/Overlay_network">Wikipedia</a></p><h1>Non-repudiation</h1><p>The property of the cryptographic or communication system that allows the recipient of the message to prove to any third party that the sender identified by some cryptographic key sent the message. It is the opposite to <a href="#repudiation">repudiation</a>. While in some context non-repudiation may be desirable (e.g., for contractually binding messages), in the context of private communications it may be undesirable.</p><p><a href="https://en.wikipedia.org/wiki/Non-repudiation">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Repudiation</h1><div class="overlay-content"><p>The property of the cryptographic or communication system that allows the sender of the message to plausibly deny having sent the message, because while the recipient can verify that the message was sent by the sender, they cannot prove it to any third party - the recipient has a technical ability to forge the same encrypted message. This is an important quality of private communications, as it allows to have the conversation that can later be denied, similarly to having a private face-to-face conversation.</p><p>See also <a href="#non-repudiation">non-repudiation</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="pairwise-pseudonymous-identifier" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Pairwise pseudonymous identifier</h1><div class="overlay-content"><p>Generalizing <a href="https://csrc.nist.gov/glossary/term/pairwise_pseudonymous_identifier">the definition</a> from NIST Digital Identity Guidelines, it is an opaque unguessable identifier generated by a service used to access a resource by only one party.</p><p>In the context of SimpleX network, these are the identifiers generated by SMP relays to access anonymous messaging queues, with a separate identifier (and access credential) for each accessing party: recipient, sender and and optional notifications subscriber. The same approach is used by XFTP relays to access file chunks, with separate identifiers (and access credentials) for sender and each recipient.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Peer-to-peer</h1><div class="overlay-content"><p>Peer-to-peer (P2P) is the network architecture when participants have equal rights and communicate directly via a general purpose transport or overlay network. Unlike client-server architecture, all peers in a P2P network both provide and consume the resources. In the context of messaging, P2P architecture usually means that the messages are sent between peers, without user accounts or messages being stored on any servers. Examples are Tox, Briar, Cwtch and many others.</p><p>The advantage is that the participants do not depend on any servers. There are <a href="./SIMPLEX.md#comparison-with-p2p9-messaging-protocols">multiple downsides</a> to that architecture, such as no asynchronous message delivery, the need for network-wide peer addresses, possibility of network-wide attacks, that are usually mitigated only by using a centralized authority. These disadvantages are avoided with <a href="#proxied-peer-to-peer">proxied P2P</a> architecture.</p><p><a href="https://en.wikipedia.org/wiki/Peer-to-peer">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="proxied-peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Proxied peer-to-peer</h1><div class="overlay-content"><p>Network topology of the communication system when peers communicate via proxies that do not form the network themselves. Such design is used in Pond, that has a fixed home server for each user, and in SimpleX, that uses multiple relays providing temporary connections.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="perfect-forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Perfect forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-cryptography" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum cryptography</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-hybrid-crypto" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum hybrid crypto</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="recovery-from-compromise" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Recovery from compromise</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="user-identity" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">User identity</h1><div class="overlay-content"><p>In a communication system it refers to anything that uniquely identifies the users to the network. Depending on the communication network, it can be a phone number, email address, username, public key or a random opaque identifier. Most messaging networks rely on some form of user identity. SimpleX appears to be the only messaging network that does not rely on any kind of user identity - see <a href="https://en.wikipedia.org/wiki/Comparison_of_instant_messaging_protocols">this comparison</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div></body></html>
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+                            </svg>
+                        </a>
+                        <a href="https://twitter.com/simplexchat" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 41 41" fill="none" xmlns="http://www.w3.org/2000/svg">
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+                            </svg>
+                        </a>
+                        <a href="https://www.linkedin.com/company/simplex-chat/" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 41 41" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M20.0408 0.926758C8.9951 0.926758 0.0407715 9.88109 0.0407715 20.9268C0.0407715 31.9724 8.9951 40.9268 20.0408 40.9268C31.0864 40.9268 40.0408 31.9724 40.0408 20.9268C40.0408 9.88109 31.0864 0.926758 20.0408 0.926758ZM9.6421 17.4916H14.1745V31.1098H9.6421V17.4916ZM14.4731 13.279C14.4437 11.9438 13.4889 10.9268 11.9383 10.9268C10.3878 10.9268 9.3741 11.9438 9.3741 13.279C9.3741 14.5866 10.3579 15.6328 11.8794 15.6328H11.9084C13.4889 15.6328 14.4731 14.5866 14.4731 13.279ZM25.3017 17.1718C28.2843 17.1718 30.5203 19.1187 30.5203 23.3015L30.5201 31.1098H25.9879V23.824C25.9879 21.994 25.3319 20.7453 23.6912 20.7453C22.439 20.7453 21.6932 21.5871 21.3656 22.4003C21.2458 22.6916 21.2164 23.0976 21.2164 23.5046V31.1101H16.6834C16.6834 31.1101 16.7431 18.7698 16.6834 17.492H21.2164V19.4208C21.8179 18.4936 22.8953 17.1718 25.3017 17.1718Z" />
+                            </svg>
+                        </a>
+                        <a href="https://simplex.chat/feed.rss" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 512 512" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M256 512C397.385 512 512 397.385 512 256C512 114.615 397.385 0 256 0C114.615 0 0 114.615 0 256C0 397.385 114.615 512 256 512ZM132.791 157.572C215.586 161.137 279.503 196.841 323.612 267.517C344.138 302.436 354.186 339.959 354.57 380.122H406.814C409.639 231.301 280.977 103.1 132.791 106.05V157.572ZM309.994 343.843C311.593 356.035 313.096 367.877 314.65 380.116H261.161C260.496 344.968 248.303 314.452 223.472 289.485C198.613 264.491 168.097 252.282 132.755 251.38V199.743C198.318 196.346 288.694 244.344 309.994 343.843ZM132.766 336.706C129.293 354.261 137.796 370.323 154.848 378.004L155.461 378.242C156.267 378.558 156.912 378.81 157.577 378.985C173.012 383.066 186.298 379.318 196.604 367.168C206.463 355.544 208.397 342.145 201.87 328.354C195.205 314.271 183.419 307.215 167.834 307.356C151.188 307.509 135.971 320.504 132.766 336.706Z" />
+                            </svg>
+                        </a>
+                    </div>
+                </div>
+            </article>
+        </div>
+        <a href="#" class="text-grey-black dark:text-white text-[16px] text-center lg:ltr:text-left lg:rtl:text-right font-medium leading-[28px] tracking-[0.01em] block mt-[60px]">© 2020-2025 SimpleX Chat | Projet Open-Source</a>
+    </div>
+</section>
+
+
+        <script src="/js/swiper-bundle.min.js"></script>
+        <script src="/js/script.js"></script>
+    </body>
+</html>
diff --git a/fr/index.html b/fr/index.html
index f217f9f1f4..1919c5ea1c 100644
--- a/fr/index.html
+++ b/fr/index.html
@@ -153,6 +153,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/fr/invitation/index.html b/fr/invitation/index.html
index a970711f40..cfd82d47d8 100644
--- a/fr/invitation/index.html
+++ b/fr/invitation/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/fr/messaging/index.html b/fr/messaging/index.html
index c4520f4300..b0705ec967 100644
--- a/fr/messaging/index.html
+++ b/fr/messaging/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/fr/old/index.html b/fr/old/index.html
index 34ecb608d8..2e9a9b044a 100644
--- a/fr/old/index.html
+++ b/fr/old/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/fr/why/index.html b/fr/why/index.html
index 6c2c37b49a..f64934ccec 100644
--- a/fr/why/index.html
+++ b/fr/why/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/he/contact/index.html b/he/contact/index.html
index fcc7dcae34..4fe12ca062 100644
--- a/he/contact/index.html
+++ b/he/contact/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/he/fdroid/index.html b/he/fdroid/index.html
index 893a0cd439..96741e91cc 100644
--- a/he/fdroid/index.html
+++ b/he/fdroid/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/he/file/index.html b/he/file/index.html
new file mode 100644
index 0000000000..d7f50cf696
--- /dev/null
+++ b/he/file/index.html
@@ -0,0 +1,888 @@
+<!DOCTYPE html>
+<html lang="he"
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+            dir="rtl"
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    >
+    <head>
+        <meta charset="UTF-8">
+        <meta http-equiv="X-UA-Compatible" content="IE=edge">
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        <title>SimpleX File Transfer</title>
+        <meta name="description" content="Send files securely with end-to-end encryption"/>
+        <meta name="Content-Type" content="text/html;charset=utf-8"/>
+        
+        <meta http-equiv="onion-location" content="http://isdb4l77sjqoy2qq7ipum6x3at6hyn3jmxfx4zdhc72ufbmuq4ilwkqd.onion/" />
+        <meta property="og:url" content="https://simplex.chat/" />
+        
+        <meta property="og:type" content="website"/>
+        <meta property="og:title" content="SimpleX File Transfer"/>
+        <meta property="og:description" content="Send files securely with end-to-end encryption"/>
+        <meta property="og:image" content="https://simplex.chat/img/share_simplex.jpg"/>
+        <meta name="twitter:card" content="summary"/>
+        <link rel="icon" type="image/png" sizes="96x96" href="/img/favicon.ico"/>
+
+        <link rel="stylesheet" href="/css/swiper-bundle.min.css">
+        <link rel="stylesheet" href="/css/blog.css">
+        <link href="/css/tailwind.css" rel="stylesheet"/>
+        <link rel="stylesheet" href="/css/style.css">
+        <link rel="stylesheet" href="/css/design3-nav.css">
+        <script async defer src="https://buttons.github.io/buttons.js"></script>
+        <script src="/js/flag-anchor.js"></script>
+        
+    </head>
+    <body class="bg-[#F3FAFF] dark:bg-[#000832]">
+        
+
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+        
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+
+<header id="navbar">
+    <a href="/he" class="logo logo-light ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-light.png" alt="logo"></a>
+    <a href="/he" class="logo logo-dark ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-dark.png" alt="logo"></a>
+
+    <nav id="menu">
+        <ul>
+            <li class="nav-link ">
+                <a href="/he">
+                    <span class="nav-link-text">מסך הבית</span>
+                </a>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/directory/">
+                    <span class="nav-link-text">Directory</span>
+                </a>
+            </li>
+
+            
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">מדריך</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    
+                        <li><a href="/docs/guide/readme.html" class="">התחלה מהירה</a></li>
+                    
+                        <li><a href="/docs/guide/send-messages.html" class="">שליחת הודעות</a></li>
+                    
+                        <li><a href="/docs/guide/secret-groups.html" class="">קבוצות סודיות</a></li>
+                    
+                        <li><a href="/docs/guide/chat-profiles.html" class="">פרופילי צ'אט</a></li>
+                    
+                        <li><a href="/docs/guide/managing-data.html" class="">ניהול נתונים</a></li>
+                    
+                        <li><a href="/docs/guide/audio-video-calls.html" class="">שיחות שמע ווידאו</a></li>
+                    
+                        <li><a href="/docs/guide/privacy-security.html" class="">פרטיות ואבטחה</a></li>
+                    
+                        <li><a href="/docs/guide/app-settings.html" class="">הגדרות אפליקציה</a></li>
+                    
+                        <li><a href="/docs/guide/making-connections.html" class="">יצירת קשרים</a></li>
+                    
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">הפניה</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md"
+                        target="_blank">Whitepaper
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/privacy">מדיניות הפרטיות</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/simplex-messaging.md"
+                        target="_blank">פרוטוקול SMP
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/protocol/simplex-chat.html">פרוטוקול צ'אט</a></li>
+                    <li><a href="/docs/glossary.html">מילון מונחים</a></li>
+
+                    <hr>
+
+                    
+                        <li><a href="/docs/simplex.html" class=" lg:px-[20px] inline-block whitespace-nowrap">רשת SimpleX</a></li>
+                    
+                        <li><a href="/docs/business.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX לעסקים</a></li>
+                    
+                        <li><a href="/docs/directory.html" class=" lg:px-[20px] inline-block whitespace-nowrap">שירות מדריך כתובות SimpleX</a></li>
+                    
+                        <li><a href="/docs/android.html" class=" lg:px-[20px] inline-block whitespace-nowrap">כיצד לגשת לקבצי אנדרואיד</a></li>
+                    
+                        <li><a href="/docs/server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">כיצד לארח שרת SMP</a></li>
+                    
+                        <li><a href="/docs/xftp-server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">כיצד לארח שרת XFTP</a></li>
+                    
+                        <li><a href="/docs/webrtc.html" class=" lg:px-[20px] inline-block whitespace-nowrap">שרתי WebRTC</a></li>
+                    
+                        <li><a href="/downloads/" class=" lg:px-[20px] inline-block whitespace-nowrap">הורדות</a></li>
+                    
+                        <li><a href="/reproduce/" class=" lg:px-[20px] inline-block whitespace-nowrap">Verify & reproduce builds</a></li>
+                    
+                        <li><a href="/transparency/" class=" lg:px-[20px] inline-block whitespace-nowrap">שקיפות</a></li>
+                    
+                        <li><a href="/security/" class=" lg:px-[20px] inline-block whitespace-nowrap">אבטחה</a></li>
+                    
+                        <li><a href="/faq/" class=" lg:px-[20px] inline-block whitespace-nowrap">שאלות ותשובות</a></li>
+                    
+
+                    <hr>
+
+                    <li><a href="/docs/translations.html"
+                    >תרגמו את SimpleX Chat
+                    </a></li>
+                    <li><a href="/docs/android.html"
+                    >כיצד לגשת לקבצי אנדרואיד
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/blob/stable/apps/simplex-bot-advanced/Main.hs"
+                        target="_blank">דוגמה לצ'אט בוט
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/tree/stable/packages/simplex-chat-client/typescript"
+                        target="_blank">TypeScript SDK
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/cli.html">ממשק שורת פקודה</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq"
+                        target="_blank">SimpleXMQ
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/blog">
+                    <span class="nav-link-text">בלוג</span>
+                </a>
+            </li>
+        </ul>
+    </nav>
+
+    <div class="right-links">
+        
+            <a class="box-btn token md:hidden" href="/donate">
+                תרומה
+            </a>
+        
+        <button href="#" class="theme-switch-btn">
+            <svg class="sun" width="469" height="469" viewBox="0 0 469 469" fill="none" xmlns="http://www.w3.org/2000/svg">
+            <path d="M225.768 1.44594C220.301 3.84594 214.701 10.6459 213.768 15.9793C213.234 18.3793 213.101 31.7126 213.368 45.7126L213.768 71.1793L217.634 76.1126C226.701 88.1126 242.968 87.5793 252.301 75.0459C254.968 71.5793 255.101 69.5793 255.101 42.2459C255.101 14.9126 254.968 12.9126 252.301 9.44594C250.834 7.44594 248.034 4.51261 246.168 3.17928C241.768 -0.154057 231.101 -1.08739 225.768 1.44594Z"/>
+            <path d="M72.9687 65.3128C63.7687 71.5794 60.1687 81.4461 63.7687 91.1794C65.502 95.4461 98.702 129.446 104.035 132.379C106.035 133.446 110.569 134.246 114.035 134.246C126.035 134.246 134.435 125.846 134.435 113.846C134.435 110.379 133.635 105.846 132.569 103.846C129.635 98.5128 95.6353 65.3128 91.3687 63.5794C85.102 61.3128 77.902 61.9794 72.9687 65.3128Z"/>
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+            <path d="M12.4349 214.779C-0.498477 220.379 -4.09848 237.579 5.23486 248.246C11.2349 255.046 15.6349 255.846 45.3682 255.313C74.0349 254.913 75.1015 254.646 81.6349 245.713C85.9015 239.979 85.5015 228.113 80.8349 221.979C74.4349 213.713 71.2349 212.913 42.1682 212.913C23.7682 213.046 15.2349 213.579 12.4349 214.779Z"/>
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+            <path d="M103.101 336.779C96.7013 340.779 65.368 373.179 63.768 377.313C57.368 394.513 74.168 411.313 91.368 404.913C95.6347 403.179 129.635 369.979 132.568 364.646C135.368 359.446 134.968 349.046 131.768 343.846C126.168 334.646 112.035 331.179 103.101 336.779Z"/>
+            <path d="M344.035 336.912C341.635 338.379 338.569 341.445 337.102 343.845C333.902 349.045 333.502 359.445 336.302 364.645C339.235 369.979 373.235 403.179 377.502 404.912C387.235 408.512 397.102 404.912 403.369 395.712C406.702 390.779 407.369 383.579 405.102 377.312C403.369 373.045 370.169 339.045 364.835 336.112C359.635 333.312 349.235 333.712 344.035 336.912Z"/>
+            <path d="M225.368 385.712C222.968 387.046 219.368 390.112 217.368 392.646L213.768 397.312V426.379C213.768 458.246 213.901 458.779 222.968 465.446C228.168 469.312 240.701 469.312 245.901 465.446C254.834 458.779 255.101 457.979 255.501 428.246C256.034 397.579 255.234 394.379 246.834 387.979C241.101 383.579 231.634 382.512 225.368 385.712Z"/>
+            </svg>
+
+            <svg class="moon" width="469" height="469" viewBox="5 5 20 23" xmlns="http://www.w3.org/2000/svg">
+                <path d="M10.895 7.574c0 7.55 5.179 13.67 11.567 13.67 1.588 0 3.101-0.38 4.479-1.063-1.695 4.46-5.996 7.636-11.051 7.636-6.533 0-11.83-5.297-11.83-11.83 0-4.82 2.888-8.959 7.023-10.803-0.116 0.778-0.188 1.573-0.188 2.39z"></path>
+            </svg>
+        </button>
+
+        
+
+        <button id="cross-btn" class="nav-toggle-btn">
+            <svg id="cross" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+            <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z" />
+        </svg>
+        </button>
+    </div>
+</header>
+<div id="mobile-header">
+    <a href="/he" class="logo flex dark:hidden ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-light.svg" alt="" srcset=""></a>
+    <a href="/he" class="logo hidden dark:flex ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-dark.svg" alt="" srcset=""></a>
+
+    <button id="hamburger" class="nav-toggle-btn">
+        <svg viewBox="0 0 100 80" width="36" height="36">
+            <rect width="100" height="15"></rect>
+            <rect y="30" width="100" height="15"></rect>
+            <rect y="60" width="100" height="15"></rect>
+        </svg>
+    </button>
+</div>
+
+
+<script>
+// switch theme
+const sunIcon = document.querySelector('.sun');
+const moonIcon = document.querySelector('.moon');
+
+const userTheme = localStorage.getItem('theme');
+const systemTheme = window.matchMedia('(prefers-color-scheme: dark)').matches;
+const prismThemeLink = document.getElementById('prism-theme')
+
+function iconToggle () {
+    sunIcon.classList.toggle('hidden');
+    moonIcon.classList.toggle('hidden');
+}
+
+function themeCheck() {
+    if (userTheme === 'dark' || (!userTheme && systemTheme)) {
+        document.documentElement.classList.add('dark');
+        moonIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+    }
+    else{
+        sunIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+    }
+}
+themeCheck();
+
+function themeSwitch () {
+    if (document.documentElement.classList.contains('dark')) {
+        document.documentElement.classList.remove('dark');
+        localStorage.setItem('theme', 'light');
+        if(prismThemeLink){
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+        iconToggle();
+    } else {
+        document.documentElement.classList.add('dark');
+        localStorage.setItem('theme', 'dark');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+        iconToggle();
+    }
+}
+
+const nav = document.querySelector('header#navbar');
+
+window.addEventListener('click',(e)=>{
+    if(e.target.closest('.nav-link')){
+        if(e.target.closest('.nav-link').classList.contains('active')){
+            e.target.closest('.nav-link').classList.remove('active');
+        }
+        else{
+            document.querySelectorAll('.nav-link').forEach(el => el.classList.remove('active'))
+            e.target.closest('.nav-link').classList.add('active');
+        }
+    }
+    else if(e.target.closest('.nav-toggle-btn')){
+        if(nav.classList.contains('open')){
+            nav.classList.remove('open');
+            document.getElementById('mobile-header').classList.remove('nav-open');
+            document.documentElement.classList.remove('lock-scroll');
+        }
+        else{
+            document.documentElement.classList.add('lock-scroll');
+            document.getElementById('mobile-header').classList.add('nav-open');
+            nav.classList.add('open');
+        }
+    }
+    else if(e.target.closest('.theme-switch-btn')){
+        themeSwitch();
+    }
+});
+</script>
+
+        <html><head><link rel="stylesheet" href="/file-assets/index.css">
+<style>
+  /* Reset website .card styles that conflict with xftp bundle */
+  #app .card { cursor: default; }
+  #app .card,
+  #app .card > div { transition: unset; height: auto; }
+  #app .card > div > * { opacity: unset; max-height: unset; transform: unset; transition: unset; }
+
+  /* Align xftp bundle with website design */
+  #app { font-family: inherit; color: #3F484B; max-width: 600px; width: 100%; margin: 0 auto; padding: 0; }
+  #app .card { background: transparent; box-shadow: none; padding: 0; border-radius: 0; }
+  #app .card > h1 { display: none; }
+  .dark #app h1 { color: #fff; }
+  #app .drop-zone { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; }
+  #app .drop-zone.drag-over { border-color: #0053D0; background: #DBEEFF; }
+  #app .btn { background: #0053D0; border-radius: 34px; padding: 12px 32px; font-size: .9rem; font-weight: 600; }
+  #app .btn:hover { background: #1661D1; }
+  #app .btn-secondary { background: #6b7280; border-radius: 34px; }
+  #app .hint { color: #6b7280; }
+  #app .link-row input { border-radius: 8px; border-color: #c5d3de; }
+  #app .security-note { background: #ffffff; border-radius: 12px; color: #3F484B; }
+  #app .security-note a { color: #0197FF; }
+  #app .success { color: #0053D0; }
+
+  .dark #app { color: #e5e7eb; }
+  .dark #app .card { background: transparent; box-shadow: none; }
+  .dark #app .drop-zone { border-color: #374151; }
+  .dark #app .drop-zone.drag-over { border-color: #70F0F9; background: #1B325C; }
+  .dark #app .btn { background: #70F0F9; color: #000832; }
+  .dark #app .btn:hover { background: #66D9E2; }
+  .dark #app .link-row input { border-color: #374151; background: #071C46; color: #e5e7eb; }
+  .dark #app .security-note { background: #0B2A59; color: #d1d5db; }
+  .dark #app .security-note a { color: #70F0F9; }
+  .dark #app .success { color: #70F0F9; }
+
+  #app #upload-error { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; text-align: center; }
+  .dark #app #upload-error { border-color: #374151; }
+
+  #app .stage > .btn { margin-top: 20px; }
+  #app .security-note { margin-top: 20px; }
+  #app .drop-zone .btn { margin: 10px 0 16px; }
+
+  /* Protocol overlay: image fixed, text scrolls natively */
+  /* Push popup below navbar at all widths */
+  #xftp-protocol { padding-top: 70px; }
+  #xftp-protocol .overlay-card {
+    display: flex;
+    flex-direction: column;
+    position: relative;
+    overflow: hidden;
+  }
+  @media (min-width: 768px) {
+    #xftp-protocol .overlay-card { max-height: min(660px, 100%); }
+  }
+  #xftp-protocol .overlay-card > h1 {
+    flex-shrink: 0;
+    padding-bottom: 16px;
+    margin-bottom: 0;
+    z-index: 1;
+  }
+  @media (min-width: 1024px) and (max-height: 750px) {
+    #xftp-protocol .overlay-card > h1 {
+      font-size: 22px;
+    }
+  }
+  /* .flex is the full-width scroll container */
+  #xftp-protocol .overlay-card > .flex {
+    flex: 1;
+    min-height: 0;
+    overflow-y: auto;
+    scrollbar-width: thin;
+    scrollbar-color: #c5d3de transparent;
+  }
+  .dark #xftp-protocol .overlay-card > .flex {
+    scrollbar-color: #374151 transparent;
+  }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar { width: 6px; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-track { background: transparent; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #c5d3de; border-radius: 3px; }
+  .dark #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #374151; }
+  /* Desktop: text stays left, image fixed on right */
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card > .flex > div:first-child {
+      max-width: 50%;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child {
+      position: absolute;
+      right: 56px;
+      top: 0;
+      bottom: 0;
+      left: 55%;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      pointer-events: none;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child > div {
+      height: 100%;
+      padding: 40px 0;
+      box-sizing: border-box;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child img {
+      height: 100%;
+    }
+  }
+  #xftp-protocol .close-overlay-btn {
+    position: absolute;
+    top: 24px;
+    right: 24px;
+    cursor: pointer;
+    z-index: 3;
+    fill: #606C71;
+  }
+  .dark #xftp-protocol .close-overlay-btn { fill: #e5e7eb; }
+  /* Scroll fade: gradient over text area only, hidden at bottom */
+  #xftp-protocol .overlay-card::after {
+    content: '';
+    position: absolute;
+    bottom: 40px;
+    left: 24px;
+    right: 24px;
+    height: 48px;
+    background: linear-gradient(rgba(255,255,255,0), #fff);
+    pointer-events: none;
+    z-index: 2;
+    transition: opacity 0.2s;
+  }
+  .dark #xftp-protocol .overlay-card::after {
+    background: linear-gradient(rgba(7,28,70,0), #071C46);
+  }
+  @media (min-width: 640px) {
+    #xftp-protocol .overlay-card::after { bottom: 56px; left: 56px; right: 56px; }
+  }
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card::after { right: 55%; }
+  }
+  #xftp-protocol.scrolled-bottom .overlay-card::after { opacity: 0; }
+  #xftp-protocol .overlay-card.flex,
+  #xftp-protocol.flex .overlay-card { animation: overlaySlideIn 0.25s ease-out; }
+  @keyframes overlaySlideIn {
+    from { opacity: 0; transform: scale(0.95) translateY(10px); }
+    to { opacity: 1; transform: scale(1) translateY(0); }
+  }
+  #xftp-protocol.overlay-closing { animation: overlayFadeOut 0.2s ease-in forwards; }
+  #xftp-protocol.overlay-closing .overlay-card { animation: overlaySlideOut 0.2s ease-in forwards; }
+  @keyframes overlayFadeOut {
+    from { opacity: 1; }
+    to { opacity: 0; }
+  }
+  @keyframes overlaySlideOut {
+    from { opacity: 1; transform: scale(1) translateY(0); }
+    to { opacity: 0; transform: scale(0.95) translateY(10px); }
+  }
+
+  .file-proto-link {
+    font-size: 1.25rem;
+    font-weight: 600;
+    background: linear-gradient(90deg, #001aa7 0%, #0095e7 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+    text-decoration: none;
+  }
+  .dark .file-proto-link {
+    background: linear-gradient(90deg, #019bfe 0%, #64fdff 58%, #c8feff 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+  }
+
+</style>
+
+</head><body><section class="bg-secondary-bg-light dark:bg-primary-bg-dark py-10 mt-[66px] px-5">
+  <div class="container flex flex-col items-center mx-auto">
+    <noscript>
+      <p class="text-center text-grey-black dark:text-white py-10">
+        JavaScript is required for file transfer.
+      </p>
+    </noscript>
+    <h1 class="text-[38px] text-center font-bold text-active-blue mb-8">SimpleX File Transfer</h1>
+    <div id="app" data-xftp-app="" data-no-hashchange="" class="w-full">
+      <div class="card">
+        <div class="drop-zone">
+          <p>Drag &amp; drop a file here</p>
+          <p class="hint">or</p>
+          <span class="btn">Choose file</span>
+          <p class="hint">Max 100 MB - <a href="#join-simplex">SimpleX Chat app</a> supports files up to 1 GB</p>
+        </div>
+      </div>
+    </div>
+    <template id="dl-placeholder">
+      <div class="card">
+        <h1>SimpleX File Transfer</h1>
+        <div class="stage">
+          <p>File available</p>
+          <button class="btn">Download</button>
+          <div class="security-note">
+            <p>This file is encrypted - data routers never see file contents, name or size.</p>
+            <p>The encryption key is in the link’s hash fragment - it is never sent to any server.</p>
+            <p>For better security, use <a href="https://simplex.chat/download">SimpleX Chat</a> app.</p>
+          </div>
+        </div>
+      </div>
+    </template>
+    <script>if(location.hash.length>50){var a=document.getElementById("app"),t=document.getElementById("dl-placeholder");if(a&&t)a.replaceChildren(t.content.cloneNode(true))}</script>
+    <script type="module" src="/file-assets/index.js"></script>
+
+    <p class="text-base text-center text-grey-black dark:text-white mt-10 max-w-[600px]">Send files securely with <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span> — no accounts, no tracking.</p>
+    <a href="javascript:void(0)" data-show-overlay="xftp-protocol" class="open-overlay-btn file-proto-link mt-3 block text-center">Learn more about XFTP protocol</a>
+  </div>
+</section>
+
+<section class="bg-primary-bg-light dark:bg-secondary-bg-dark py-[90px] px-5">
+  <div class="container flex flex-col items-center mx-auto text-center">
+    <h2 class="text-[35px] leading-[45px] md:text-[45px] md:leading-[55px] text-grey-black dark:text-white font-bold mb-5">
+      Get SimpleX Chat — the most secure &amp; private messenger
+    </h2>
+    <p class="text-base text-grey-black dark:text-white mb-14 max-w-[600px]">
+      The file transfer you just used uses the same data routing protocol as SimpleX Chat. The app has end-to-end encrypted messaging, voice and video calls, groups, and sending files. No account. No phone. No email. No user profile IDs.
+    </p>
+    <div class="flex items-center justify-center gap-4 flex-wrap">
+      <a href="https://apps.apple.com/us/app/simplex-chat/id1605771084" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apple_store.svg"></a>
+      <a href="https://play.google.com/store/apps/details?id=chat.simplex.app" target="_blank"><img class="h-[40px] w-auto" src="/img/new/google_play.svg"></a>
+      <a href="/he/fdroid"><img class="h-[40px] w-auto" src="/img/new/f_droid.svg"></a>
+      <a href="https://testflight.apple.com/join/DWuT2LQu" target="_blank"><img class="h-[40px] w-auto" src="/img/new/testflight.png"></a>
+      <a href="https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-aarch64.apk" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apk_icon.png"></a>
+    </div>
+  </div>
+</section>
+
+
+  
+    
+    <div id="xftp-protocol" data-scroll-to="" class="overlay hidden fixed top-0 left-0 bottom-0 right-0 before:absolute before:w-full before:h-full bg-transparent before:bg-secondary-bg-light dark:before:bg-primary-bg-dark before:opacity-90 items-center justify-center p-3 md:p-10 z-[10000]">
+        <div class="overlay-card w-full md:w-fit md:max-w-[1276px] bg-white dark:bg-card-bg-dark opacity-100 h-full md:h-fit md:max-h-[660px] z-[10001] rounded-md shadow-[0px_3px_12px_rgba(0,0,0,0.2)] p-6 py-10 sm:p-14 overflow-auto scale-100">
+            <h1 class="text-3xl font-bold text-active-blue mb-6 ">XFTP protocol: the most secure file transfer</h1>
+            <div class="flex flex-col-reverse lg:flex-row gap-10 justify-between">
+                
+                    <div class="lg:max-w-[448px]">
+                        <div class="text-grey-black dark:text-white flex flex-col gap-6 text-base">
+                            <div>
+  <h3 class="font-bold text-lg mb-2">No account required</h3>
+  <p>Each file fragment uses a new random key. Data routers have no "users" or "files" - they transfer encrypted file fragments of fixed sizes.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Triple-encrypted in your browser</h3>
+  <p>File encryption key is present only in the URL hash fragment - your browser never sends it to a server. There are 3 encryption layers: TLS transport, per-recipient encryption (unique ephemeral key per transfer), and file <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span>.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Independent data routers</h3>
+  <p>When file is split to fragments, it is sent via network routers operated by independent parties. No operator can see the actual file size or name. Even if a router is compromised, it can only see encrypted fragments of fixed size. File fragments are cached by network routers for approximately 48 hours.</p>
+</div>
+<p class="mt-4">
+  <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/xftp.md" target="_blank" rel="noopener" class="text-active-blue hover:underline">
+    Read the XFTP protocol specification →
+  </a>
+</p>
+
+                        </div>
+                    </div>
+                
+
+                
+                    <div class="max-w-[448px]">
+                        <div class="flex items-center justify-center">
+                            <img class="w-full max-w-[448px] min-w-[300px] dark:hidden" src="/img/new/xftp-protocol.svg" alt="">
+                            <img class="w-full max-w-[448px] min-w-[300px] hidden dark:block" src="/img/new/xftp-protocol-dark.svg" alt="">
+                        </div>
+                    </div>
+                
+            </div>
+
+            <svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+                <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z"></path>
+            </svg>
+        </div>
+    </div>
+
+
+
+<script>
+  window.__XFTP_I18N__ = {
+    "title": "SimpleX File Transfer",
+    "dropZone": "Drag & drop a file here",
+    "dropZoneHint": "or",
+    "chooseFile": "Choose file",
+    "maxSizeHint": "Max 100 MB - <a href=\"#join-simplex\">SimpleX Chat app</a> supports files up to 1 GB",
+    "encrypting": "Encrypting…",
+    "uploading": "Uploading…",
+    "cancel": "Cancel",
+    "fileUploaded": "File uploaded",
+    "copy": "Copy",
+    "copied": "Copied!",
+    "share": "Share",
+    "expiryHint": "Files are typically available for 48 hours.",
+    "securityNote1": "Your file was encrypted in the browser - data routers never see file contents, name or size.",
+    "securityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "securityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "retry": "Retry",
+    "downloading": "Downloading…",
+    "decrypting": "Decrypting…",
+    "downloadComplete": "Download complete",
+    "download": "Download",
+    "fileTooLarge": "File too large (%size%). Maximum is 100 MB. The <a href=\"#join-simplex\">SimpleX app</a> supports files up to 1 GB.",
+    "fileEmpty": "File is empty.",
+    "invalidLink": "Invalid or corrupted link.",
+    "initError": "Failed to initialize: %error%",
+    "fileAvailable": "File available (~%size%)",
+    "dlSecurityNote1": "This file is encrypted - data routers never see file contents, name or size.",
+    "dlSecurityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "dlSecurityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "workersRequired": "Web Workers required — update your browser"
+  }
+</script>
+
+<script>
+  // Intercept close for #xftp-protocol to add fade-out animation
+  document.getElementById('xftp-protocol')?.addEventListener('click', function(e) {
+    if (e.target.closest('.close-overlay-btn') || (e.target.closest('.overlay') && !e.target.closest('.overlay-card'))) {
+      e.stopPropagation();
+      var el = document.getElementById('xftp-protocol');
+      el.classList.add('overlay-closing');
+      el.addEventListener('animationend', function handler() {
+        el.removeEventListener('animationend', handler);
+        el.classList.remove('flex', 'overlay-closing');
+        el.classList.add('hidden');
+        document.body.classList.remove('lock-scroll');
+        history.replaceState(null, null, ' ');
+      });
+    }
+  }, true);
+
+  // Hide scroll fade gradient when text bottom is visible (works with column-reverse)
+  var scrollArea = document.querySelector('#xftp-protocol .overlay-card > .flex');
+  if (scrollArea) {
+    var textCol = scrollArea.querySelector(':scope > div:first-child > div');
+    function checkScrollBottom() {
+      if (!textCol) return;
+      var scrollRect = scrollArea.getBoundingClientRect();
+      if (scrollRect.height === 0) return; // not laid out yet
+      var textBottom = textCol.getBoundingClientRect().bottom;
+      document.getElementById('xftp-protocol').classList.toggle('scrolled-bottom', textBottom <= scrollRect.bottom + 10);
+    }
+    scrollArea.addEventListener('scroll', checkScrollBottom);
+    new MutationObserver(function() {
+      if (!document.getElementById('xftp-protocol').classList.contains('hidden')) {
+        requestAnimationFrame(checkScrollBottom);
+      }
+    }).observe(document.getElementById('xftp-protocol'), { attributes: true, attributeFilter: ['class'] });
+  }
+</script>
+
+<div id="address-portability" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Address portability</h1><div class="overlay-content"><p>Similarly to <a href="https://en.wikipedia.org/wiki/Local_number_portability">phone number portability</a> (the ability of the customer to transfer the service to another provider without changing the number), the address portability means the ability of a communication service customer to change the service provider without changing the service address. Many <a href="#federated-network">federated networks</a> support SRV records to provide address portability, but allowing service users to set up their own domains for the addresses is not as commonly supported by the available server and client software as for email.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="federated-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Federated network</h1><div class="overlay-content"><p>Federated network is provided by several entities that agree upon the standards and operate the network collectively. This allows the users to choose their provider, that will hold their account, their messaging history and contacts, and communicate with other providers' servers on behalf of the user. The examples are email, XMPP, Matrix and Mastodon.</p><p>The advantage of that design is that there is no single organization that all users depend on, and the standards are more difficult to change, unless it benefits all users. There are several disadvantages: 1) the innovation is slower, 2) each user account still depends on a single organization, and in most cases can't move to another provider without changing their network address – there is no <a href="#address-portability">address portability</a>, 3) the security and privacy are inevitably worse than with the centralized networks.</p><p><a href="https://en.wikipedia.org/wiki/Federation_(information_technology)">Federation on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="anonymous-credentials" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Anonymous credentials</h1><div class="overlay-content"><p>The credential that allows proving something, e.g. the right to access some resource, without identifying the user. This credential can either be generated by a trusted party or by the user themselves and provided together with the request to create the resource. The first approach creates some centralized dependency in most cases. The second approach does not require any trust - this is used in SimpleX network to authorize access to the messaging queues.</p><p><a href="https://en.wikipedia.org/wiki/Digital_credential">Digital credential on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="blockchain" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Blockchain</h1><div class="overlay-content"><p>In a wide sense, blockchain means a sequence of blocks of data, where each block contains a cryptographic hash of the previous block, thus providing integrity to the whole chain. Blockchains are used in many communication and information storage systems to provide integrity and immutability of the data. For example, BluRay disks use blockchain. SimpleX messaging queues also use blockchain - each message includes the hash of the previous message, to ensure the integrity – if any message is modified it will be detected by the recipient when the next message is received. Blockchains are a subset of <a href="#merkle-directed-acyclic-graph">Merkle directed acyclic graphs</a>.</p><p>In a more narrow sense, particularly in media, blockchain is used to refer specifically to distributed ledger, where each record also includes the hash of the previous record, but the blocks have to be agreed by the participating peers using some <a href="https://en.wikipedia.org/wiki/Consensus_(computer_science)">consensus protocol</a>.</p><p><a href="https://en.wikipedia.org/wiki/Blockchain">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="merkle-directed-acyclic-graph" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Merkle directed acyclic graph</h1><div class="overlay-content"><p>Also known as Merkle DAG, a data structure based on a general graph structure where node contains the cryptographic hashes of the previous nodes that point to it. Merkle trees are a subset of Merkle DAGs - in this case each leaf contains a cryptographic hash of the parent.</p><p>This structure by design allows to verify the integrity of the whole structure by computing its hashes and comparing with the hashes included in the nodes, in the same way as with <a href="#blockchain">blockchain</a>.</p><p>The motivation to use DAG in distributed environments instead of a simpler linear blockchain is to allow concurrent additions, when there is no requirement for a single order of added items. Merkle DAG is used, for example, in <a href="https://en.wikipedia.org/wiki/InterPlanetary_File_System">IPFS</a> and will be used in decentralized SimpleX groups.</p><p><a href="https://en.wikipedia.org/wiki/Merkle_tree">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="break-in-recovery" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Break-in recovery</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="double-ratchet-algorithm" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Double ratchet algorithm</h1><div class="overlay-content"><p>It is used by two parties to exchange <a href="#end-to-end-encryption">end-to-end encrypted</a> messages. The parties will use some <a href="#key-agreement-protocol">key agreement protocol</a> to agree on the initial shared secret key.</p><p>Double Ratchet algorithm provides <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>. It is <a href="https://signal.org/docs/specifications/doubleratchet">designed by Signal</a>, and used in SimpleX Chat and many other secure messengers. Most experts consider it the state-of-the-art encryption protocol in message encryption.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="centralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Centralized network</h1><div class="overlay-content"><p>Centralized networks are provided or controlled by a single entity. The examples are Threema, Signal, WhatsApp and Telegram. The advantage of that design is that the provider can innovate faster, and has a centralized approach to security. But the disadvantage is that the provider can change or discontinue the service, and leak, sell or disclose in some other way all users' data, including who they are connected with.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="content-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Content padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="decentralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Decentralized network</h1><div class="overlay-content"><p>Decentralized network is often used to mean "the network based on decentralized blockchain". In its original meaning, decentralized network means that there is no central authority or any other point of centralization in the network, other than network protocols specification. The advantage of decentralized networks is that they are resilient to censorship and to the provider going out of business. The disadvantage is that they are often slower to innovate, and the security may be worse than with the centralized network.</p><p>The examples of decentralized networks are email, web, DNS, XMPP, Matrix, BitTorrent, etc. All these examples have a shared global application-level address space. Cryptocurrency blockchains not only have a shared address space, but also a shared state, so they are more centralized than email. Tor network also has a shared global address space, but also a central authority. SimpleX network does not have a shared application-level address space (it relies on the shared transport-level addresses - SMP relay hostnames or IP addresses), and it does not have any central authority or any shared state.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="defense-in-depth" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Defense in depth</h1><div class="overlay-content"><p>Originally, it is a military strategy that seeks to delay rather than prevent the advance of an attacker, buying time and causing additional casualties by yielding space.</p><p>In information security, defense in depth represents the use of multiple computer security techniques to help mitigate the risk of one component of the defense being compromised or circumvented. An example could be anti-virus software installed on individual workstations when there is already virus protection on the firewalls and servers within the same environment.</p><p>SimpleX network applies defense in depth approach to security by having multiple layers for the communication security and privacy:</p><ul>
+<li>double ratchet algorithm for <a href="#end-to-end-encryption">end-to-end encryption</a> with <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>,</li>
+<li>additional layer of end-to-end encryption for each messaging queue and another encryption layer of encryption from the server to the recipient inside TLS to prevent correlation by ciphertext,</li>
+<li>TLS with only strong ciphers allowed,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-server connection via server offline certificate verification,</li>
+<li>mitigation of replay attacks via signing over transport channel binding,</li>
+<li>multiple layers of <a href="#message-padding">message padding</a> to reduce efficiency of traffic analysis,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-client out-of-band channel when sending the invitation,</li>
+<li>rotation of delivery queues to reduce efficiency of traffic analysis,</li>
+<li>etc.</li>
+</ul><p><a href="https://en.wikipedia.org/wiki/Defence_in_depth">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="end-to-end-encryption" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">End-to-end encryption</h1><div class="overlay-content"><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><p>End-to-end encryption requires agreeing cryptographic keys between the sender and the recipient in a way that no eavesdroppers can access the agreed keys. See <a href="#key-agreement-protocol">key agreement protocol</a>. This key exchange can be compromised via <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>, particularly if key exchange happens via the same communication provider and no out-of-band channel is used to verify key exchange.</p><p><a href="https://en.wikipedia.org/wiki/End-to-end_encryption">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-compromise-security" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-compromise security</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="man-in-the-middle-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Man-in-the-middle attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="message-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Message padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="key-agreement-protocol" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key agreement protocol</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="tooltip-end-to-end-encryption" class="glossary-tooltip"><div class="tooltip-content"><h4 class="tooltip-title">End-to-end encryption</h4><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><button class="read-more-btn open-overlay-btn" data-show-overlay="end-to-end-encryption">Read more</button></div></div><div id="key-exchange" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key exchange</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="mitm-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">MITM attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="non-repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Non-repudiation</h1><div class="overlay-content">Non-repudiation</div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="onion-routing" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Onion routing</h1><div class="overlay-content"><p>A technique for anonymous communication over a computer network that uses multiple layers of message encryption, analogous to the layers of an onion. The encrypted data is transmitted through a series of network nodes called "onion routers," each of which "peels" away a single layer, revealing the data's next destination. The sender remains anonymous because each intermediary knows only the location of the immediately preceding and following nodes.</p><p>The most widely used onion network is <a href="https://en.wikipedia.org/wiki/Tor_(network)">Tor</a>.</p><p>Some elements of SimpleX network use similar ideas in their design - different addresses for the same resource used by different parties, and additional encryption layers. Currently though, SimpleX messaging protocol does not protect sender network address, as the relay server is chosen by the recipient. The delivery relays chosen by sender that are planned for the future would make SimpleX design closer to onion routing.</p><p><a href="https://en.wikipedia.org/wiki/Onion_routing">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="overlay-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Overlay network</h1><div class="overlay-content"><p>Nodes in the overlay network can be thought of as being connected by virtual or logical links, each of which corresponds to a path, perhaps through many physical links, in the underlying network. Tor, for example, is an overlay network on top of IP network, which in its turn is also an overlay network over some underlying physical network.</p><p>SimpleX Clients also form a network using SMP relays and IP or some other overlay network (e.g., Tor), to communicate with each other. SMP relays, on another hand, do not form a network.</p><p><a href="https://en.wikipedia.org/wiki/Overlay_network">Wikipedia</a></p><h1>Non-repudiation</h1><p>The property of the cryptographic or communication system that allows the recipient of the message to prove to any third party that the sender identified by some cryptographic key sent the message. It is the opposite to <a href="#repudiation">repudiation</a>. While in some context non-repudiation may be desirable (e.g., for contractually binding messages), in the context of private communications it may be undesirable.</p><p><a href="https://en.wikipedia.org/wiki/Non-repudiation">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Repudiation</h1><div class="overlay-content"><p>The property of the cryptographic or communication system that allows the sender of the message to plausibly deny having sent the message, because while the recipient can verify that the message was sent by the sender, they cannot prove it to any third party - the recipient has a technical ability to forge the same encrypted message. This is an important quality of private communications, as it allows to have the conversation that can later be denied, similarly to having a private face-to-face conversation.</p><p>See also <a href="#non-repudiation">non-repudiation</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="pairwise-pseudonymous-identifier" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Pairwise pseudonymous identifier</h1><div class="overlay-content"><p>Generalizing <a href="https://csrc.nist.gov/glossary/term/pairwise_pseudonymous_identifier">the definition</a> from NIST Digital Identity Guidelines, it is an opaque unguessable identifier generated by a service used to access a resource by only one party.</p><p>In the context of SimpleX network, these are the identifiers generated by SMP relays to access anonymous messaging queues, with a separate identifier (and access credential) for each accessing party: recipient, sender and and optional notifications subscriber. The same approach is used by XFTP relays to access file chunks, with separate identifiers (and access credentials) for sender and each recipient.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Peer-to-peer</h1><div class="overlay-content"><p>Peer-to-peer (P2P) is the network architecture when participants have equal rights and communicate directly via a general purpose transport or overlay network. Unlike client-server architecture, all peers in a P2P network both provide and consume the resources. In the context of messaging, P2P architecture usually means that the messages are sent between peers, without user accounts or messages being stored on any servers. Examples are Tox, Briar, Cwtch and many others.</p><p>The advantage is that the participants do not depend on any servers. There are <a href="./SIMPLEX.md#comparison-with-p2p9-messaging-protocols">multiple downsides</a> to that architecture, such as no asynchronous message delivery, the need for network-wide peer addresses, possibility of network-wide attacks, that are usually mitigated only by using a centralized authority. These disadvantages are avoided with <a href="#proxied-peer-to-peer">proxied P2P</a> architecture.</p><p><a href="https://en.wikipedia.org/wiki/Peer-to-peer">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="proxied-peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Proxied peer-to-peer</h1><div class="overlay-content"><p>Network topology of the communication system when peers communicate via proxies that do not form the network themselves. Such design is used in Pond, that has a fixed home server for each user, and in SimpleX, that uses multiple relays providing temporary connections.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="perfect-forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Perfect forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-cryptography" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum cryptography</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-hybrid-crypto" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum hybrid crypto</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="recovery-from-compromise" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Recovery from compromise</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="user-identity" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">User identity</h1><div class="overlay-content"><p>In a communication system it refers to anything that uniquely identifies the users to the network. Depending on the communication network, it can be a phone number, email address, username, public key or a random opaque identifier. Most messaging networks rely on some form of user identity. SimpleX appears to be the only messaging network that does not rely on any kind of user identity - see <a href="https://en.wikipedia.org/wiki/Comparison_of_instant_messaging_protocols">this comparison</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div></body></html>
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+                            SimpleX bots API
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+                            </svg>
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+                    <div class="flex gap-2 justify-center">
+                        <a href="https://github.com/simplex-chat" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 41 41" fill="none" xmlns="http://www.w3.org/2000/svg">
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+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M20.0408 0.926758C8.9951 0.926758 0.0407715 9.88109 0.0407715 20.9268C0.0407715 31.9724 8.9951 40.9268 20.0408 40.9268C31.0864 40.9268 40.0408 31.9724 40.0408 20.9268C40.0408 9.88109 31.0864 0.926758 20.0408 0.926758ZM9.6421 17.4916H14.1745V31.1098H9.6421V17.4916ZM14.4731 13.279C14.4437 11.9438 13.4889 10.9268 11.9383 10.9268C10.3878 10.9268 9.3741 11.9438 9.3741 13.279C9.3741 14.5866 10.3579 15.6328 11.8794 15.6328H11.9084C13.4889 15.6328 14.4731 14.5866 14.4731 13.279ZM25.3017 17.1718C28.2843 17.1718 30.5203 19.1187 30.5203 23.3015L30.5201 31.1098H25.9879V23.824C25.9879 21.994 25.3319 20.7453 23.6912 20.7453C22.439 20.7453 21.6932 21.5871 21.3656 22.4003C21.2458 22.6916 21.2164 23.0976 21.2164 23.5046V31.1101H16.6834C16.6834 31.1101 16.7431 18.7698 16.6834 17.492H21.2164V19.4208C21.8179 18.4936 22.8953 17.1718 25.3017 17.1718Z" />
+                            </svg>
+                        </a>
+                        <a href="https://simplex.chat/feed.rss" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 512 512" fill="none" xmlns="http://www.w3.org/2000/svg">
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+                            </svg>
+                        </a>
+                    </div>
+                </div>
+            </article>
+        </div>
+        <a href="#" class="text-grey-black dark:text-white text-[16px] text-center lg:ltr:text-left lg:rtl:text-right font-medium leading-[28px] tracking-[0.01em] block mt-[60px]">© 2020-2025 SimpleX Chat | פרויקט קוד פתוח</a>
+    </div>
+</section>
+
+
+        <script src="/js/swiper-bundle.min.js"></script>
+        <script src="/js/script.js"></script>
+    </body>
+</html>
diff --git a/he/index.html b/he/index.html
index 3ed59d2432..2f5c894859 100644
--- a/he/index.html
+++ b/he/index.html
@@ -153,6 +153,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/he/invitation/index.html b/he/invitation/index.html
index c29dbdd105..a7012250f9 100644
--- a/he/invitation/index.html
+++ b/he/invitation/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/he/messaging/index.html b/he/messaging/index.html
index 4d97911fde..4d58d707b0 100644
--- a/he/messaging/index.html
+++ b/he/messaging/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/he/old/index.html b/he/old/index.html
index 571a7dfc23..cf2f17bfe8 100644
--- a/he/old/index.html
+++ b/he/old/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/he/why/index.html b/he/why/index.html
index d3723ff7fd..72662ffb3b 100644
--- a/he/why/index.html
+++ b/he/why/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
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diff --git a/hu/contact/index.html b/hu/contact/index.html
index 6b761bb3ec..5f80c9b02b 100644
--- a/hu/contact/index.html
+++ b/hu/contact/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/hu/fdroid/index.html b/hu/fdroid/index.html
index 65879eec13..dde1fa3080 100644
--- a/hu/fdroid/index.html
+++ b/hu/fdroid/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
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diff --git a/hu/file/index.html b/hu/file/index.html
new file mode 100644
index 0000000000..366e10bfc1
--- /dev/null
+++ b/hu/file/index.html
@@ -0,0 +1,888 @@
+<!DOCTYPE html>
+<html lang="hu"
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+            dir="ltr"
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
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+        
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+    <head>
+        <meta charset="UTF-8">
+        <meta http-equiv="X-UA-Compatible" content="IE=edge">
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        <title>SimpleX File Transfer</title>
+        <meta name="description" content="Send files securely with end-to-end encryption"/>
+        <meta name="Content-Type" content="text/html;charset=utf-8"/>
+        
+        <meta http-equiv="onion-location" content="http://isdb4l77sjqoy2qq7ipum6x3at6hyn3jmxfx4zdhc72ufbmuq4ilwkqd.onion/" />
+        <meta property="og:url" content="https://simplex.chat/" />
+        
+        <meta property="og:type" content="website"/>
+        <meta property="og:title" content="SimpleX File Transfer"/>
+        <meta property="og:description" content="Send files securely with end-to-end encryption"/>
+        <meta property="og:image" content="https://simplex.chat/img/share_simplex.jpg"/>
+        <meta name="twitter:card" content="summary"/>
+        <link rel="icon" type="image/png" sizes="96x96" href="/img/favicon.ico"/>
+
+        <link rel="stylesheet" href="/css/swiper-bundle.min.css">
+        <link rel="stylesheet" href="/css/blog.css">
+        <link href="/css/tailwind.css" rel="stylesheet"/>
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+        <link rel="stylesheet" href="/css/design3-nav.css">
+        <script async defer src="https://buttons.github.io/buttons.js"></script>
+        <script src="/js/flag-anchor.js"></script>
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+    <body class="bg-[#F3FAFF] dark:bg-[#000832]">
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+<header id="navbar">
+    <a href="/hu" class="logo logo-light ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-light.png" alt="logo"></a>
+    <a href="/hu" class="logo logo-dark ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-dark.png" alt="logo"></a>
+
+    <nav id="menu">
+        <ul>
+            <li class="nav-link ">
+                <a href="/hu">
+                    <span class="nav-link-text">Kezdőoldal</span>
+                </a>
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+
+            <li class="nav-link ">
+                <a href="/directory/">
+                    <span class="nav-link-text">Csoportjegyzék</span>
+                </a>
+            </li>
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+            
+
+            <hr>
+
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+                <a href="javascript:void(0);">
+                    <span class="">Útmutató</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
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+                <ul class="sub-menu">
+                    
+                        <li><a href="/docs/guide/readme.html" class="">Gyors indítás</a></li>
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+                        <li><a href="/docs/guide/send-messages.html" class="">Üzenetek küldése</a></li>
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+                        <li><a href="/docs/guide/secret-groups.html" class="">Titkos csoportok</a></li>
+                    
+                        <li><a href="/docs/guide/chat-profiles.html" class="">Csevegési profilok</a></li>
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+                        <li><a href="/docs/guide/managing-data.html" class="">Adatkezelés</a></li>
+                    
+                        <li><a href="/docs/guide/audio-video-calls.html" class="">Hang- és videóhívások</a></li>
+                    
+                        <li><a href="/docs/guide/privacy-security.html" class="">Adatvédelem és biztonság</a></li>
+                    
+                        <li><a href="/docs/guide/app-settings.html" class="">Alkalmazásbeállítások</a></li>
+                    
+                        <li><a href="/docs/guide/making-connections.html" class="">Kapcsolatok létrehozása</a></li>
+                    
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+                <a href="javascript:void(0);">
+                    <span class="">Hivatkozás</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md"
+                        target="_blank">Whitepaper
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/privacy">Adatvédelmi irányelvek</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/simplex-messaging.md"
+                        target="_blank">SMP-protokoll
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/protocol/simplex-chat.html">Csevegési protokoll</a></li>
+                    <li><a href="/docs/glossary.html">Fogalomtár</a></li>
+
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+
+                    
+                        <li><a href="/docs/simplex.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX hálózat</a></li>
+                    
+                        <li><a href="/docs/business.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX üzleti célra</a></li>
+                    
+                        <li><a href="/docs/directory.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX csoportjegyzék</a></li>
+                    
+                        <li><a href="/docs/android.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Android fájlok elérése</a></li>
+                    
+                        <li><a href="/docs/server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SMP-kiszolgáló üzemeltetése</a></li>
+                    
+                        <li><a href="/docs/xftp-server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">XFTP-kiszolgáló üzemeltetése</a></li>
+                    
+                        <li><a href="/docs/webrtc.html" class=" lg:px-[20px] inline-block whitespace-nowrap">WebRTC-kiszolgálók</a></li>
+                    
+                        <li><a href="/downloads/" class=" lg:px-[20px] inline-block whitespace-nowrap">Letöltések</a></li>
+                    
+                        <li><a href="/reproduce/" class=" lg:px-[20px] inline-block whitespace-nowrap">Verify & reproduce builds</a></li>
+                    
+                        <li><a href="/transparency/" class=" lg:px-[20px] inline-block whitespace-nowrap">Átláthatóság</a></li>
+                    
+                        <li><a href="/security/" class=" lg:px-[20px] inline-block whitespace-nowrap">Biztonság</a></li>
+                    
+                        <li><a href="/faq/" class=" lg:px-[20px] inline-block whitespace-nowrap">GYIK</a></li>
+                    
+
+                    <hr>
+
+                    <li><a href="/docs/translations.html"
+                    >SimpleX Chat honosítása
+                    </a></li>
+                    <li><a href="/docs/android.html"
+                    >Android fájlok elérése
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/blob/stable/apps/simplex-bot-advanced/Main.hs"
+                        target="_blank">Példa egy csevegési botra
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/tree/stable/packages/simplex-chat-client/typescript"
+                        target="_blank">TypeScript SDK
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/cli.html">Terminál CLI</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq"
+                        target="_blank">SimpleXMQ
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/blog">
+                    <span class="nav-link-text">Blog</span>
+                </a>
+            </li>
+        </ul>
+    </nav>
+
+    <div class="right-links">
+        
+            <a class="box-btn token md:hidden" href="/donate">
+                Adományozás
+            </a>
+        
+        <button href="#" class="theme-switch-btn">
+            <svg class="sun" width="469" height="469" viewBox="0 0 469 469" fill="none" xmlns="http://www.w3.org/2000/svg">
+            <path d="M225.768 1.44594C220.301 3.84594 214.701 10.6459 213.768 15.9793C213.234 18.3793 213.101 31.7126 213.368 45.7126L213.768 71.1793L217.634 76.1126C226.701 88.1126 242.968 87.5793 252.301 75.0459C254.968 71.5793 255.101 69.5793 255.101 42.2459C255.101 14.9126 254.968 12.9126 252.301 9.44594C250.834 7.44594 248.034 4.51261 246.168 3.17928C241.768 -0.154057 231.101 -1.08739 225.768 1.44594Z"/>
+            <path d="M72.9687 65.3128C63.7687 71.5794 60.1687 81.4461 63.7687 91.1794C65.502 95.4461 98.702 129.446 104.035 132.379C106.035 133.446 110.569 134.246 114.035 134.246C126.035 134.246 134.435 125.846 134.435 113.846C134.435 110.379 133.635 105.846 132.569 103.846C129.635 98.5128 95.6353 65.3128 91.3687 63.5794C85.102 61.3128 77.902 61.9794 72.9687 65.3128Z"/>
+            <path d="M377.102 63.7128C373.102 65.3128 338.969 98.7794 336.302 103.846C335.236 105.846 334.436 110.379 334.436 113.846C334.436 125.846 342.836 134.246 354.836 134.246C358.302 134.246 362.836 133.446 364.836 132.379C370.169 129.446 403.369 95.4461 405.102 91.1794C408.702 81.4461 405.102 71.5794 395.902 65.3128C391.102 61.9794 383.102 61.3128 377.102 63.7128Z"/>
+            <path d="M211.635 108.246C185.635 113.179 163.502 125.046 144.302 144.112C117.902 170.512 104.968 203.579 106.835 240.246C109.768 297.712 149.102 344.912 205.902 359.179C218.568 362.379 250.302 362.379 262.968 359.179C310.435 347.312 345.768 312.646 358.702 265.046C362.435 251.446 362.835 219.446 359.368 205.712C347.368 158.112 312.302 122.379 265.235 110.112C251.768 106.512 225.502 105.579 211.635 108.246Z"/>
+            <path d="M12.4349 214.779C-0.498477 220.379 -4.09848 237.579 5.23486 248.246C11.2349 255.046 15.6349 255.846 45.3682 255.313C74.0349 254.913 75.1015 254.646 81.6349 245.713C85.9015 239.979 85.5015 228.113 80.8349 221.979C74.4349 213.713 71.2349 212.913 42.1682 212.913C23.7682 213.046 15.2349 213.579 12.4349 214.779Z"/>
+            <path d="M396.035 215.179C393.635 216.379 390.035 219.445 388.035 221.979C383.368 228.112 382.968 239.979 387.235 245.712C394.035 254.779 394.301 254.912 426.435 254.912C458.568 254.912 458.835 254.779 465.635 245.712C469.501 240.512 469.501 227.979 465.635 222.779C458.968 213.845 458.301 213.579 428.035 213.179C404.435 212.912 399.768 213.179 396.035 215.179Z"/>
+            <path d="M103.101 336.779C96.7013 340.779 65.368 373.179 63.768 377.313C57.368 394.513 74.168 411.313 91.368 404.913C95.6347 403.179 129.635 369.979 132.568 364.646C135.368 359.446 134.968 349.046 131.768 343.846C126.168 334.646 112.035 331.179 103.101 336.779Z"/>
+            <path d="M344.035 336.912C341.635 338.379 338.569 341.445 337.102 343.845C333.902 349.045 333.502 359.445 336.302 364.645C339.235 369.979 373.235 403.179 377.502 404.912C387.235 408.512 397.102 404.912 403.369 395.712C406.702 390.779 407.369 383.579 405.102 377.312C403.369 373.045 370.169 339.045 364.835 336.112C359.635 333.312 349.235 333.712 344.035 336.912Z"/>
+            <path d="M225.368 385.712C222.968 387.046 219.368 390.112 217.368 392.646L213.768 397.312V426.379C213.768 458.246 213.901 458.779 222.968 465.446C228.168 469.312 240.701 469.312 245.901 465.446C254.834 458.779 255.101 457.979 255.501 428.246C256.034 397.579 255.234 394.379 246.834 387.979C241.101 383.579 231.634 382.512 225.368 385.712Z"/>
+            </svg>
+
+            <svg class="moon" width="469" height="469" viewBox="5 5 20 23" xmlns="http://www.w3.org/2000/svg">
+                <path d="M10.895 7.574c0 7.55 5.179 13.67 11.567 13.67 1.588 0 3.101-0.38 4.479-1.063-1.695 4.46-5.996 7.636-11.051 7.636-6.533 0-11.83-5.297-11.83-11.83 0-4.82 2.888-8.959 7.023-10.803-0.116 0.778-0.188 1.573-0.188 2.39z"></path>
+            </svg>
+        </button>
+
+        
+
+        <button id="cross-btn" class="nav-toggle-btn">
+            <svg id="cross" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+            <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z" />
+        </svg>
+        </button>
+    </div>
+</header>
+<div id="mobile-header">
+    <a href="/hu" class="logo flex dark:hidden ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-light.svg" alt="" srcset=""></a>
+    <a href="/hu" class="logo hidden dark:flex ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-dark.svg" alt="" srcset=""></a>
+
+    <button id="hamburger" class="nav-toggle-btn">
+        <svg viewBox="0 0 100 80" width="36" height="36">
+            <rect width="100" height="15"></rect>
+            <rect y="30" width="100" height="15"></rect>
+            <rect y="60" width="100" height="15"></rect>
+        </svg>
+    </button>
+</div>
+
+
+<script>
+// switch theme
+const sunIcon = document.querySelector('.sun');
+const moonIcon = document.querySelector('.moon');
+
+const userTheme = localStorage.getItem('theme');
+const systemTheme = window.matchMedia('(prefers-color-scheme: dark)').matches;
+const prismThemeLink = document.getElementById('prism-theme')
+
+function iconToggle () {
+    sunIcon.classList.toggle('hidden');
+    moonIcon.classList.toggle('hidden');
+}
+
+function themeCheck() {
+    if (userTheme === 'dark' || (!userTheme && systemTheme)) {
+        document.documentElement.classList.add('dark');
+        moonIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+    }
+    else{
+        sunIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+    }
+}
+themeCheck();
+
+function themeSwitch () {
+    if (document.documentElement.classList.contains('dark')) {
+        document.documentElement.classList.remove('dark');
+        localStorage.setItem('theme', 'light');
+        if(prismThemeLink){
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+        iconToggle();
+    } else {
+        document.documentElement.classList.add('dark');
+        localStorage.setItem('theme', 'dark');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+        iconToggle();
+    }
+}
+
+const nav = document.querySelector('header#navbar');
+
+window.addEventListener('click',(e)=>{
+    if(e.target.closest('.nav-link')){
+        if(e.target.closest('.nav-link').classList.contains('active')){
+            e.target.closest('.nav-link').classList.remove('active');
+        }
+        else{
+            document.querySelectorAll('.nav-link').forEach(el => el.classList.remove('active'))
+            e.target.closest('.nav-link').classList.add('active');
+        }
+    }
+    else if(e.target.closest('.nav-toggle-btn')){
+        if(nav.classList.contains('open')){
+            nav.classList.remove('open');
+            document.getElementById('mobile-header').classList.remove('nav-open');
+            document.documentElement.classList.remove('lock-scroll');
+        }
+        else{
+            document.documentElement.classList.add('lock-scroll');
+            document.getElementById('mobile-header').classList.add('nav-open');
+            nav.classList.add('open');
+        }
+    }
+    else if(e.target.closest('.theme-switch-btn')){
+        themeSwitch();
+    }
+});
+</script>
+
+        <html><head><link rel="stylesheet" href="/file-assets/index.css">
+<style>
+  /* Reset website .card styles that conflict with xftp bundle */
+  #app .card { cursor: default; }
+  #app .card,
+  #app .card > div { transition: unset; height: auto; }
+  #app .card > div > * { opacity: unset; max-height: unset; transform: unset; transition: unset; }
+
+  /* Align xftp bundle with website design */
+  #app { font-family: inherit; color: #3F484B; max-width: 600px; width: 100%; margin: 0 auto; padding: 0; }
+  #app .card { background: transparent; box-shadow: none; padding: 0; border-radius: 0; }
+  #app .card > h1 { display: none; }
+  .dark #app h1 { color: #fff; }
+  #app .drop-zone { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; }
+  #app .drop-zone.drag-over { border-color: #0053D0; background: #DBEEFF; }
+  #app .btn { background: #0053D0; border-radius: 34px; padding: 12px 32px; font-size: .9rem; font-weight: 600; }
+  #app .btn:hover { background: #1661D1; }
+  #app .btn-secondary { background: #6b7280; border-radius: 34px; }
+  #app .hint { color: #6b7280; }
+  #app .link-row input { border-radius: 8px; border-color: #c5d3de; }
+  #app .security-note { background: #ffffff; border-radius: 12px; color: #3F484B; }
+  #app .security-note a { color: #0197FF; }
+  #app .success { color: #0053D0; }
+
+  .dark #app { color: #e5e7eb; }
+  .dark #app .card { background: transparent; box-shadow: none; }
+  .dark #app .drop-zone { border-color: #374151; }
+  .dark #app .drop-zone.drag-over { border-color: #70F0F9; background: #1B325C; }
+  .dark #app .btn { background: #70F0F9; color: #000832; }
+  .dark #app .btn:hover { background: #66D9E2; }
+  .dark #app .link-row input { border-color: #374151; background: #071C46; color: #e5e7eb; }
+  .dark #app .security-note { background: #0B2A59; color: #d1d5db; }
+  .dark #app .security-note a { color: #70F0F9; }
+  .dark #app .success { color: #70F0F9; }
+
+  #app #upload-error { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; text-align: center; }
+  .dark #app #upload-error { border-color: #374151; }
+
+  #app .stage > .btn { margin-top: 20px; }
+  #app .security-note { margin-top: 20px; }
+  #app .drop-zone .btn { margin: 10px 0 16px; }
+
+  /* Protocol overlay: image fixed, text scrolls natively */
+  /* Push popup below navbar at all widths */
+  #xftp-protocol { padding-top: 70px; }
+  #xftp-protocol .overlay-card {
+    display: flex;
+    flex-direction: column;
+    position: relative;
+    overflow: hidden;
+  }
+  @media (min-width: 768px) {
+    #xftp-protocol .overlay-card { max-height: min(660px, 100%); }
+  }
+  #xftp-protocol .overlay-card > h1 {
+    flex-shrink: 0;
+    padding-bottom: 16px;
+    margin-bottom: 0;
+    z-index: 1;
+  }
+  @media (min-width: 1024px) and (max-height: 750px) {
+    #xftp-protocol .overlay-card > h1 {
+      font-size: 22px;
+    }
+  }
+  /* .flex is the full-width scroll container */
+  #xftp-protocol .overlay-card > .flex {
+    flex: 1;
+    min-height: 0;
+    overflow-y: auto;
+    scrollbar-width: thin;
+    scrollbar-color: #c5d3de transparent;
+  }
+  .dark #xftp-protocol .overlay-card > .flex {
+    scrollbar-color: #374151 transparent;
+  }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar { width: 6px; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-track { background: transparent; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #c5d3de; border-radius: 3px; }
+  .dark #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #374151; }
+  /* Desktop: text stays left, image fixed on right */
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card > .flex > div:first-child {
+      max-width: 50%;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child {
+      position: absolute;
+      right: 56px;
+      top: 0;
+      bottom: 0;
+      left: 55%;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      pointer-events: none;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child > div {
+      height: 100%;
+      padding: 40px 0;
+      box-sizing: border-box;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child img {
+      height: 100%;
+    }
+  }
+  #xftp-protocol .close-overlay-btn {
+    position: absolute;
+    top: 24px;
+    right: 24px;
+    cursor: pointer;
+    z-index: 3;
+    fill: #606C71;
+  }
+  .dark #xftp-protocol .close-overlay-btn { fill: #e5e7eb; }
+  /* Scroll fade: gradient over text area only, hidden at bottom */
+  #xftp-protocol .overlay-card::after {
+    content: '';
+    position: absolute;
+    bottom: 40px;
+    left: 24px;
+    right: 24px;
+    height: 48px;
+    background: linear-gradient(rgba(255,255,255,0), #fff);
+    pointer-events: none;
+    z-index: 2;
+    transition: opacity 0.2s;
+  }
+  .dark #xftp-protocol .overlay-card::after {
+    background: linear-gradient(rgba(7,28,70,0), #071C46);
+  }
+  @media (min-width: 640px) {
+    #xftp-protocol .overlay-card::after { bottom: 56px; left: 56px; right: 56px; }
+  }
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card::after { right: 55%; }
+  }
+  #xftp-protocol.scrolled-bottom .overlay-card::after { opacity: 0; }
+  #xftp-protocol .overlay-card.flex,
+  #xftp-protocol.flex .overlay-card { animation: overlaySlideIn 0.25s ease-out; }
+  @keyframes overlaySlideIn {
+    from { opacity: 0; transform: scale(0.95) translateY(10px); }
+    to { opacity: 1; transform: scale(1) translateY(0); }
+  }
+  #xftp-protocol.overlay-closing { animation: overlayFadeOut 0.2s ease-in forwards; }
+  #xftp-protocol.overlay-closing .overlay-card { animation: overlaySlideOut 0.2s ease-in forwards; }
+  @keyframes overlayFadeOut {
+    from { opacity: 1; }
+    to { opacity: 0; }
+  }
+  @keyframes overlaySlideOut {
+    from { opacity: 1; transform: scale(1) translateY(0); }
+    to { opacity: 0; transform: scale(0.95) translateY(10px); }
+  }
+
+  .file-proto-link {
+    font-size: 1.25rem;
+    font-weight: 600;
+    background: linear-gradient(90deg, #001aa7 0%, #0095e7 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+    text-decoration: none;
+  }
+  .dark .file-proto-link {
+    background: linear-gradient(90deg, #019bfe 0%, #64fdff 58%, #c8feff 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+  }
+
+</style>
+
+</head><body><section class="bg-secondary-bg-light dark:bg-primary-bg-dark py-10 mt-[66px] px-5">
+  <div class="container flex flex-col items-center mx-auto">
+    <noscript>
+      <p class="text-center text-grey-black dark:text-white py-10">
+        JavaScript is required for file transfer.
+      </p>
+    </noscript>
+    <h1 class="text-[38px] text-center font-bold text-active-blue mb-8">SimpleX File Transfer</h1>
+    <div id="app" data-xftp-app="" data-no-hashchange="" class="w-full">
+      <div class="card">
+        <div class="drop-zone">
+          <p>Drag &amp; drop a file here</p>
+          <p class="hint">or</p>
+          <span class="btn">Choose file</span>
+          <p class="hint">Max 100 MB - <a href="#join-simplex">SimpleX Chat app</a> supports files up to 1 GB</p>
+        </div>
+      </div>
+    </div>
+    <template id="dl-placeholder">
+      <div class="card">
+        <h1>SimpleX File Transfer</h1>
+        <div class="stage">
+          <p>File available</p>
+          <button class="btn">Download</button>
+          <div class="security-note">
+            <p>This file is encrypted - data routers never see file contents, name or size.</p>
+            <p>The encryption key is in the link’s hash fragment - it is never sent to any server.</p>
+            <p>For better security, use <a href="https://simplex.chat/download">SimpleX Chat</a> app.</p>
+          </div>
+        </div>
+      </div>
+    </template>
+    <script>if(location.hash.length>50){var a=document.getElementById("app"),t=document.getElementById("dl-placeholder");if(a&&t)a.replaceChildren(t.content.cloneNode(true))}</script>
+    <script type="module" src="/file-assets/index.js"></script>
+
+    <p class="text-base text-center text-grey-black dark:text-white mt-10 max-w-[600px]">Send files securely with <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span> — no accounts, no tracking.</p>
+    <a href="javascript:void(0)" data-show-overlay="xftp-protocol" class="open-overlay-btn file-proto-link mt-3 block text-center">Learn more about XFTP protocol</a>
+  </div>
+</section>
+
+<section class="bg-primary-bg-light dark:bg-secondary-bg-dark py-[90px] px-5">
+  <div class="container flex flex-col items-center mx-auto text-center">
+    <h2 class="text-[35px] leading-[45px] md:text-[45px] md:leading-[55px] text-grey-black dark:text-white font-bold mb-5">
+      Get SimpleX Chat — the most secure &amp; private messenger
+    </h2>
+    <p class="text-base text-grey-black dark:text-white mb-14 max-w-[600px]">
+      The file transfer you just used uses the same data routing protocol as SimpleX Chat. The app has end-to-end encrypted messaging, voice and video calls, groups, and sending files. No account. No phone. No email. No user profile IDs.
+    </p>
+    <div class="flex items-center justify-center gap-4 flex-wrap">
+      <a href="https://apps.apple.com/us/app/simplex-chat/id1605771084" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apple_store.svg"></a>
+      <a href="https://play.google.com/store/apps/details?id=chat.simplex.app" target="_blank"><img class="h-[40px] w-auto" src="/img/new/google_play.svg"></a>
+      <a href="/hu/fdroid"><img class="h-[40px] w-auto" src="/img/new/f_droid.svg"></a>
+      <a href="https://testflight.apple.com/join/DWuT2LQu" target="_blank"><img class="h-[40px] w-auto" src="/img/new/testflight.png"></a>
+      <a href="https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-aarch64.apk" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apk_icon.png"></a>
+    </div>
+  </div>
+</section>
+
+
+  
+    
+    <div id="xftp-protocol" data-scroll-to="" class="overlay hidden fixed top-0 left-0 bottom-0 right-0 before:absolute before:w-full before:h-full bg-transparent before:bg-secondary-bg-light dark:before:bg-primary-bg-dark before:opacity-90 items-center justify-center p-3 md:p-10 z-[10000]">
+        <div class="overlay-card w-full md:w-fit md:max-w-[1276px] bg-white dark:bg-card-bg-dark opacity-100 h-full md:h-fit md:max-h-[660px] z-[10001] rounded-md shadow-[0px_3px_12px_rgba(0,0,0,0.2)] p-6 py-10 sm:p-14 overflow-auto scale-100">
+            <h1 class="text-3xl font-bold text-active-blue mb-6 ">XFTP protocol: the most secure file transfer</h1>
+            <div class="flex flex-col-reverse lg:flex-row gap-10 justify-between">
+                
+                    <div class="lg:max-w-[448px]">
+                        <div class="text-grey-black dark:text-white flex flex-col gap-6 text-base">
+                            <div>
+  <h3 class="font-bold text-lg mb-2">No account required</h3>
+  <p>Each file fragment uses a new random key. Data routers have no "users" or "files" - they transfer encrypted file fragments of fixed sizes.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Triple-encrypted in your browser</h3>
+  <p>File encryption key is present only in the URL hash fragment - your browser never sends it to a server. There are 3 encryption layers: TLS transport, per-recipient encryption (unique ephemeral key per transfer), and file <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span>.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Independent data routers</h3>
+  <p>When file is split to fragments, it is sent via network routers operated by independent parties. No operator can see the actual file size or name. Even if a router is compromised, it can only see encrypted fragments of fixed size. File fragments are cached by network routers for approximately 48 hours.</p>
+</div>
+<p class="mt-4">
+  <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/xftp.md" target="_blank" rel="noopener" class="text-active-blue hover:underline">
+    Read the XFTP protocol specification →
+  </a>
+</p>
+
+                        </div>
+                    </div>
+                
+
+                
+                    <div class="max-w-[448px]">
+                        <div class="flex items-center justify-center">
+                            <img class="w-full max-w-[448px] min-w-[300px] dark:hidden" src="/img/new/xftp-protocol.svg" alt="">
+                            <img class="w-full max-w-[448px] min-w-[300px] hidden dark:block" src="/img/new/xftp-protocol-dark.svg" alt="">
+                        </div>
+                    </div>
+                
+            </div>
+
+            <svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+                <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z"></path>
+            </svg>
+        </div>
+    </div>
+
+
+
+<script>
+  window.__XFTP_I18N__ = {
+    "title": "SimpleX File Transfer",
+    "dropZone": "Drag & drop a file here",
+    "dropZoneHint": "or",
+    "chooseFile": "Choose file",
+    "maxSizeHint": "Max 100 MB - <a href=\"#join-simplex\">SimpleX Chat app</a> supports files up to 1 GB",
+    "encrypting": "Encrypting…",
+    "uploading": "Uploading…",
+    "cancel": "Cancel",
+    "fileUploaded": "File uploaded",
+    "copy": "Copy",
+    "copied": "Copied!",
+    "share": "Share",
+    "expiryHint": "Files are typically available for 48 hours.",
+    "securityNote1": "Your file was encrypted in the browser - data routers never see file contents, name or size.",
+    "securityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "securityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "retry": "Retry",
+    "downloading": "Downloading…",
+    "decrypting": "Decrypting…",
+    "downloadComplete": "Download complete",
+    "download": "Download",
+    "fileTooLarge": "File too large (%size%). Maximum is 100 MB. The <a href=\"#join-simplex\">SimpleX app</a> supports files up to 1 GB.",
+    "fileEmpty": "File is empty.",
+    "invalidLink": "Invalid or corrupted link.",
+    "initError": "Failed to initialize: %error%",
+    "fileAvailable": "File available (~%size%)",
+    "dlSecurityNote1": "This file is encrypted - data routers never see file contents, name or size.",
+    "dlSecurityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "dlSecurityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "workersRequired": "Web Workers required — update your browser"
+  }
+</script>
+
+<script>
+  // Intercept close for #xftp-protocol to add fade-out animation
+  document.getElementById('xftp-protocol')?.addEventListener('click', function(e) {
+    if (e.target.closest('.close-overlay-btn') || (e.target.closest('.overlay') && !e.target.closest('.overlay-card'))) {
+      e.stopPropagation();
+      var el = document.getElementById('xftp-protocol');
+      el.classList.add('overlay-closing');
+      el.addEventListener('animationend', function handler() {
+        el.removeEventListener('animationend', handler);
+        el.classList.remove('flex', 'overlay-closing');
+        el.classList.add('hidden');
+        document.body.classList.remove('lock-scroll');
+        history.replaceState(null, null, ' ');
+      });
+    }
+  }, true);
+
+  // Hide scroll fade gradient when text bottom is visible (works with column-reverse)
+  var scrollArea = document.querySelector('#xftp-protocol .overlay-card > .flex');
+  if (scrollArea) {
+    var textCol = scrollArea.querySelector(':scope > div:first-child > div');
+    function checkScrollBottom() {
+      if (!textCol) return;
+      var scrollRect = scrollArea.getBoundingClientRect();
+      if (scrollRect.height === 0) return; // not laid out yet
+      var textBottom = textCol.getBoundingClientRect().bottom;
+      document.getElementById('xftp-protocol').classList.toggle('scrolled-bottom', textBottom <= scrollRect.bottom + 10);
+    }
+    scrollArea.addEventListener('scroll', checkScrollBottom);
+    new MutationObserver(function() {
+      if (!document.getElementById('xftp-protocol').classList.contains('hidden')) {
+        requestAnimationFrame(checkScrollBottom);
+      }
+    }).observe(document.getElementById('xftp-protocol'), { attributes: true, attributeFilter: ['class'] });
+  }
+</script>
+
+<div id="address-portability" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Address portability</h1><div class="overlay-content"><p>Similarly to <a href="https://en.wikipedia.org/wiki/Local_number_portability">phone number portability</a> (the ability of the customer to transfer the service to another provider without changing the number), the address portability means the ability of a communication service customer to change the service provider without changing the service address. Many <a href="#federated-network">federated networks</a> support SRV records to provide address portability, but allowing service users to set up their own domains for the addresses is not as commonly supported by the available server and client software as for email.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="federated-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Federated network</h1><div class="overlay-content"><p>Federated network is provided by several entities that agree upon the standards and operate the network collectively. This allows the users to choose their provider, that will hold their account, their messaging history and contacts, and communicate with other providers' servers on behalf of the user. The examples are email, XMPP, Matrix and Mastodon.</p><p>The advantage of that design is that there is no single organization that all users depend on, and the standards are more difficult to change, unless it benefits all users. There are several disadvantages: 1) the innovation is slower, 2) each user account still depends on a single organization, and in most cases can't move to another provider without changing their network address – there is no <a href="#address-portability">address portability</a>, 3) the security and privacy are inevitably worse than with the centralized networks.</p><p><a href="https://en.wikipedia.org/wiki/Federation_(information_technology)">Federation on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="anonymous-credentials" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Anonymous credentials</h1><div class="overlay-content"><p>The credential that allows proving something, e.g. the right to access some resource, without identifying the user. This credential can either be generated by a trusted party or by the user themselves and provided together with the request to create the resource. The first approach creates some centralized dependency in most cases. The second approach does not require any trust - this is used in SimpleX network to authorize access to the messaging queues.</p><p><a href="https://en.wikipedia.org/wiki/Digital_credential">Digital credential on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="blockchain" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Blockchain</h1><div class="overlay-content"><p>In a wide sense, blockchain means a sequence of blocks of data, where each block contains a cryptographic hash of the previous block, thus providing integrity to the whole chain. Blockchains are used in many communication and information storage systems to provide integrity and immutability of the data. For example, BluRay disks use blockchain. SimpleX messaging queues also use blockchain - each message includes the hash of the previous message, to ensure the integrity – if any message is modified it will be detected by the recipient when the next message is received. Blockchains are a subset of <a href="#merkle-directed-acyclic-graph">Merkle directed acyclic graphs</a>.</p><p>In a more narrow sense, particularly in media, blockchain is used to refer specifically to distributed ledger, where each record also includes the hash of the previous record, but the blocks have to be agreed by the participating peers using some <a href="https://en.wikipedia.org/wiki/Consensus_(computer_science)">consensus protocol</a>.</p><p><a href="https://en.wikipedia.org/wiki/Blockchain">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="merkle-directed-acyclic-graph" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Merkle directed acyclic graph</h1><div class="overlay-content"><p>Also known as Merkle DAG, a data structure based on a general graph structure where node contains the cryptographic hashes of the previous nodes that point to it. Merkle trees are a subset of Merkle DAGs - in this case each leaf contains a cryptographic hash of the parent.</p><p>This structure by design allows to verify the integrity of the whole structure by computing its hashes and comparing with the hashes included in the nodes, in the same way as with <a href="#blockchain">blockchain</a>.</p><p>The motivation to use DAG in distributed environments instead of a simpler linear blockchain is to allow concurrent additions, when there is no requirement for a single order of added items. Merkle DAG is used, for example, in <a href="https://en.wikipedia.org/wiki/InterPlanetary_File_System">IPFS</a> and will be used in decentralized SimpleX groups.</p><p><a href="https://en.wikipedia.org/wiki/Merkle_tree">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="break-in-recovery" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Break-in recovery</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="double-ratchet-algorithm" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Double ratchet algorithm</h1><div class="overlay-content"><p>It is used by two parties to exchange <a href="#end-to-end-encryption">end-to-end encrypted</a> messages. The parties will use some <a href="#key-agreement-protocol">key agreement protocol</a> to agree on the initial shared secret key.</p><p>Double Ratchet algorithm provides <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>. It is <a href="https://signal.org/docs/specifications/doubleratchet">designed by Signal</a>, and used in SimpleX Chat and many other secure messengers. Most experts consider it the state-of-the-art encryption protocol in message encryption.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="centralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Centralized network</h1><div class="overlay-content"><p>Centralized networks are provided or controlled by a single entity. The examples are Threema, Signal, WhatsApp and Telegram. The advantage of that design is that the provider can innovate faster, and has a centralized approach to security. But the disadvantage is that the provider can change or discontinue the service, and leak, sell or disclose in some other way all users' data, including who they are connected with.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="content-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Content padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="decentralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Decentralized network</h1><div class="overlay-content"><p>Decentralized network is often used to mean "the network based on decentralized blockchain". In its original meaning, decentralized network means that there is no central authority or any other point of centralization in the network, other than network protocols specification. The advantage of decentralized networks is that they are resilient to censorship and to the provider going out of business. The disadvantage is that they are often slower to innovate, and the security may be worse than with the centralized network.</p><p>The examples of decentralized networks are email, web, DNS, XMPP, Matrix, BitTorrent, etc. All these examples have a shared global application-level address space. Cryptocurrency blockchains not only have a shared address space, but also a shared state, so they are more centralized than email. Tor network also has a shared global address space, but also a central authority. SimpleX network does not have a shared application-level address space (it relies on the shared transport-level addresses - SMP relay hostnames or IP addresses), and it does not have any central authority or any shared state.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="defense-in-depth" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Defense in depth</h1><div class="overlay-content"><p>Originally, it is a military strategy that seeks to delay rather than prevent the advance of an attacker, buying time and causing additional casualties by yielding space.</p><p>In information security, defense in depth represents the use of multiple computer security techniques to help mitigate the risk of one component of the defense being compromised or circumvented. An example could be anti-virus software installed on individual workstations when there is already virus protection on the firewalls and servers within the same environment.</p><p>SimpleX network applies defense in depth approach to security by having multiple layers for the communication security and privacy:</p><ul>
+<li>double ratchet algorithm for <a href="#end-to-end-encryption">end-to-end encryption</a> with <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>,</li>
+<li>additional layer of end-to-end encryption for each messaging queue and another encryption layer of encryption from the server to the recipient inside TLS to prevent correlation by ciphertext,</li>
+<li>TLS with only strong ciphers allowed,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-server connection via server offline certificate verification,</li>
+<li>mitigation of replay attacks via signing over transport channel binding,</li>
+<li>multiple layers of <a href="#message-padding">message padding</a> to reduce efficiency of traffic analysis,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-client out-of-band channel when sending the invitation,</li>
+<li>rotation of delivery queues to reduce efficiency of traffic analysis,</li>
+<li>etc.</li>
+</ul><p><a href="https://en.wikipedia.org/wiki/Defence_in_depth">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="end-to-end-encryption" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">End-to-end encryption</h1><div class="overlay-content"><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><p>End-to-end encryption requires agreeing cryptographic keys between the sender and the recipient in a way that no eavesdroppers can access the agreed keys. See <a href="#key-agreement-protocol">key agreement protocol</a>. This key exchange can be compromised via <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>, particularly if key exchange happens via the same communication provider and no out-of-band channel is used to verify key exchange.</p><p><a href="https://en.wikipedia.org/wiki/End-to-end_encryption">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-compromise-security" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-compromise security</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="man-in-the-middle-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Man-in-the-middle attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="message-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Message padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="key-agreement-protocol" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key agreement protocol</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="tooltip-end-to-end-encryption" class="glossary-tooltip"><div class="tooltip-content"><h4 class="tooltip-title">End-to-end encryption</h4><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><button class="read-more-btn open-overlay-btn" data-show-overlay="end-to-end-encryption">Read more</button></div></div><div id="key-exchange" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key exchange</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="mitm-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">MITM attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="non-repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Non-repudiation</h1><div class="overlay-content">Non-repudiation</div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="onion-routing" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Onion routing</h1><div class="overlay-content"><p>A technique for anonymous communication over a computer network that uses multiple layers of message encryption, analogous to the layers of an onion. The encrypted data is transmitted through a series of network nodes called "onion routers," each of which "peels" away a single layer, revealing the data's next destination. The sender remains anonymous because each intermediary knows only the location of the immediately preceding and following nodes.</p><p>The most widely used onion network is <a href="https://en.wikipedia.org/wiki/Tor_(network)">Tor</a>.</p><p>Some elements of SimpleX network use similar ideas in their design - different addresses for the same resource used by different parties, and additional encryption layers. Currently though, SimpleX messaging protocol does not protect sender network address, as the relay server is chosen by the recipient. The delivery relays chosen by sender that are planned for the future would make SimpleX design closer to onion routing.</p><p><a href="https://en.wikipedia.org/wiki/Onion_routing">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="overlay-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Overlay network</h1><div class="overlay-content"><p>Nodes in the overlay network can be thought of as being connected by virtual or logical links, each of which corresponds to a path, perhaps through many physical links, in the underlying network. Tor, for example, is an overlay network on top of IP network, which in its turn is also an overlay network over some underlying physical network.</p><p>SimpleX Clients also form a network using SMP relays and IP or some other overlay network (e.g., Tor), to communicate with each other. SMP relays, on another hand, do not form a network.</p><p><a href="https://en.wikipedia.org/wiki/Overlay_network">Wikipedia</a></p><h1>Non-repudiation</h1><p>The property of the cryptographic or communication system that allows the recipient of the message to prove to any third party that the sender identified by some cryptographic key sent the message. It is the opposite to <a href="#repudiation">repudiation</a>. While in some context non-repudiation may be desirable (e.g., for contractually binding messages), in the context of private communications it may be undesirable.</p><p><a href="https://en.wikipedia.org/wiki/Non-repudiation">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Repudiation</h1><div class="overlay-content"><p>The property of the cryptographic or communication system that allows the sender of the message to plausibly deny having sent the message, because while the recipient can verify that the message was sent by the sender, they cannot prove it to any third party - the recipient has a technical ability to forge the same encrypted message. This is an important quality of private communications, as it allows to have the conversation that can later be denied, similarly to having a private face-to-face conversation.</p><p>See also <a href="#non-repudiation">non-repudiation</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="pairwise-pseudonymous-identifier" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Pairwise pseudonymous identifier</h1><div class="overlay-content"><p>Generalizing <a href="https://csrc.nist.gov/glossary/term/pairwise_pseudonymous_identifier">the definition</a> from NIST Digital Identity Guidelines, it is an opaque unguessable identifier generated by a service used to access a resource by only one party.</p><p>In the context of SimpleX network, these are the identifiers generated by SMP relays to access anonymous messaging queues, with a separate identifier (and access credential) for each accessing party: recipient, sender and and optional notifications subscriber. The same approach is used by XFTP relays to access file chunks, with separate identifiers (and access credentials) for sender and each recipient.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Peer-to-peer</h1><div class="overlay-content"><p>Peer-to-peer (P2P) is the network architecture when participants have equal rights and communicate directly via a general purpose transport or overlay network. Unlike client-server architecture, all peers in a P2P network both provide and consume the resources. In the context of messaging, P2P architecture usually means that the messages are sent between peers, without user accounts or messages being stored on any servers. Examples are Tox, Briar, Cwtch and many others.</p><p>The advantage is that the participants do not depend on any servers. There are <a href="./SIMPLEX.md#comparison-with-p2p9-messaging-protocols">multiple downsides</a> to that architecture, such as no asynchronous message delivery, the need for network-wide peer addresses, possibility of network-wide attacks, that are usually mitigated only by using a centralized authority. These disadvantages are avoided with <a href="#proxied-peer-to-peer">proxied P2P</a> architecture.</p><p><a href="https://en.wikipedia.org/wiki/Peer-to-peer">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="proxied-peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Proxied peer-to-peer</h1><div class="overlay-content"><p>Network topology of the communication system when peers communicate via proxies that do not form the network themselves. Such design is used in Pond, that has a fixed home server for each user, and in SimpleX, that uses multiple relays providing temporary connections.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="perfect-forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Perfect forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-cryptography" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum cryptography</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-hybrid-crypto" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum hybrid crypto</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="recovery-from-compromise" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Recovery from compromise</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="user-identity" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">User identity</h1><div class="overlay-content"><p>In a communication system it refers to anything that uniquely identifies the users to the network. Depending on the communication network, it can be a phone number, email address, username, public key or a random opaque identifier. Most messaging networks rely on some form of user identity. SimpleX appears to be the only messaging network that does not rely on any kind of user identity - see <a href="https://en.wikipedia.org/wiki/Comparison_of_instant_messaging_protocols">this comparison</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div></body></html>
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+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            SimpleX Whitepaper
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                        <a href="https://github.com/simplex-chat/simplex-chat/blob/stable/docs/protocol/simplex-chat.md"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            A SimpleX Chat protokoll
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                        <a href="https://github.com/simplex-chat/simplex-chat/blob/stable/docs/CLI.md"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            Terminál CLI
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                        <a href="https://github.com/simplex-chat/simplex-chat/tree/stable/bots"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            SimpleX bots API
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                    </div>
+                </div>
+            </div>
+
+            <article class="mt-10 lg:mt-0">
+                <div class="h-[40px] flex flex-col gap-2 justify-center">
+                    <div class="flex gap-2 justify-center">
+                        <a href="https://simplex.chat/contact#/?v=1&smp=smp%3A%2F%2FPQUV2eL0t7OStZOoAsPEV2QYWt4-xilbakvGUGOItUo%3D%40smp6.simplex.im%2FK1rslx-m5bpXVIdMZg9NLUZ_8JBm8xTt%23%2F%3Fv%3D1%26dh%3DMCowBQYDK2VuAyEALDeVe-sG8mRY22LsXlPgiwTNs9dbiLrNuA7f3ZMAJ2w%253D%26srv%3Dbylepyau3ty4czmn77q4fglvperknl4bi2eb2fdy2bh4jxtf32kf73yd.onion">
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+                            </svg>
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+                        <a href="mailto:chat@simplex.chat" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 512 512" fill="none" xmlns="http://www.w3.org/2000/svg">
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+                            </svg>
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+                    <div class="flex gap-2 justify-center">
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+                            </svg>
+                        </a>
+                        <a href="https://simplex.chat/feed.rss" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 512 512" fill="none" xmlns="http://www.w3.org/2000/svg">
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+                            </svg>
+                        </a>
+                    </div>
+                </div>
+            </article>
+        </div>
+        <a href="#" class="text-grey-black dark:text-white text-[16px] text-center lg:ltr:text-left lg:rtl:text-right font-medium leading-[28px] tracking-[0.01em] block mt-[60px]">© 2020-2025 SimpleX Chat | Nyílt forráskódú projekt</a>
+    </div>
+</section>
+
+
+        <script src="/js/swiper-bundle.min.js"></script>
+        <script src="/js/script.js"></script>
+    </body>
+</html>
diff --git a/hu/index.html b/hu/index.html
index 3e9338fc8c..ac880815a5 100644
--- a/hu/index.html
+++ b/hu/index.html
@@ -153,6 +153,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/hu/invitation/index.html b/hu/invitation/index.html
index be2ab8beb2..cef7975f8d 100644
--- a/hu/invitation/index.html
+++ b/hu/invitation/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/hu/messaging/index.html b/hu/messaging/index.html
index 6f68cd36ff..f452b6d0ea 100644
--- a/hu/messaging/index.html
+++ b/hu/messaging/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/hu/old/index.html b/hu/old/index.html
index 4d8204f6db..39c853bb61 100644
--- a/hu/old/index.html
+++ b/hu/old/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/hu/why/index.html b/hu/why/index.html
index 388034741f..e67261c659 100644
--- a/hu/why/index.html
+++ b/hu/why/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/id/contact/index.html b/id/contact/index.html
index 87de46725f..04c6e7f465 100644
--- a/id/contact/index.html
+++ b/id/contact/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/id/fdroid/index.html b/id/fdroid/index.html
index 943195250d..140e69e6ff 100644
--- a/id/fdroid/index.html
+++ b/id/fdroid/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/id/file/index.html b/id/file/index.html
new file mode 100644
index 0000000000..d2ef9c151b
--- /dev/null
+++ b/id/file/index.html
@@ -0,0 +1,888 @@
+<!DOCTYPE html>
+<html lang="id"
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+            dir="ltr"
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    >
+    <head>
+        <meta charset="UTF-8">
+        <meta http-equiv="X-UA-Compatible" content="IE=edge">
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        <title>SimpleX File Transfer</title>
+        <meta name="description" content="Send files securely with end-to-end encryption"/>
+        <meta name="Content-Type" content="text/html;charset=utf-8"/>
+        
+        <meta http-equiv="onion-location" content="http://isdb4l77sjqoy2qq7ipum6x3at6hyn3jmxfx4zdhc72ufbmuq4ilwkqd.onion/" />
+        <meta property="og:url" content="https://simplex.chat/" />
+        
+        <meta property="og:type" content="website"/>
+        <meta property="og:title" content="SimpleX File Transfer"/>
+        <meta property="og:description" content="Send files securely with end-to-end encryption"/>
+        <meta property="og:image" content="https://simplex.chat/img/share_simplex.jpg"/>
+        <meta name="twitter:card" content="summary"/>
+        <link rel="icon" type="image/png" sizes="96x96" href="/img/favicon.ico"/>
+
+        <link rel="stylesheet" href="/css/swiper-bundle.min.css">
+        <link rel="stylesheet" href="/css/blog.css">
+        <link href="/css/tailwind.css" rel="stylesheet"/>
+        <link rel="stylesheet" href="/css/style.css">
+        <link rel="stylesheet" href="/css/design3-nav.css">
+        <script async defer src="https://buttons.github.io/buttons.js"></script>
+        <script src="/js/flag-anchor.js"></script>
+        
+    </head>
+    <body class="bg-[#F3FAFF] dark:bg-[#000832]">
+        
+
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+        
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+
+<header id="navbar">
+    <a href="/id" class="logo logo-light ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-light.png" alt="logo"></a>
+    <a href="/id" class="logo logo-dark ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-dark.png" alt="logo"></a>
+
+    <nav id="menu">
+        <ul>
+            <li class="nav-link ">
+                <a href="/id">
+                    <span class="nav-link-text">Beranda</span>
+                </a>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/directory/">
+                    <span class="nav-link-text">Direktori</span>
+                </a>
+            </li>
+
+            
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">Panduan</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    
+                        <li><a href="/docs/guide/readme.html" class="">Mulai cepat</a></li>
+                    
+                        <li><a href="/docs/guide/send-messages.html" class="">Mengirim pesan</a></li>
+                    
+                        <li><a href="/docs/guide/secret-groups.html" class="">Grup rahasia</a></li>
+                    
+                        <li><a href="/docs/guide/chat-profiles.html" class="">Profil obrolan</a></li>
+                    
+                        <li><a href="/docs/guide/managing-data.html" class="">Mengelola data</a></li>
+                    
+                        <li><a href="/docs/guide/audio-video-calls.html" class="">Panggilan Suara & Video</a></li>
+                    
+                        <li><a href="/docs/guide/privacy-security.html" class="">Privasi & keamanan</a></li>
+                    
+                        <li><a href="/docs/guide/app-settings.html" class="">Pengaturan aplikasi</a></li>
+                    
+                        <li><a href="/docs/guide/making-connections.html" class="">Membuat koneksi</a></li>
+                    
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">Referensi</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md"
+                        target="_blank">Whitepaper
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/privacy">Kebijakan Privasi</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/simplex-messaging.md"
+                        target="_blank">Protokol SMP
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/protocol/simplex-chat.html">Protokol obrolan</a></li>
+                    <li><a href="/docs/glossary.html">Glosarium</a></li>
+
+                    <hr>
+
+                    
+                        <li><a href="/docs/simplex.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Jaringan SimpleX</a></li>
+                    
+                        <li><a href="/docs/business.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX untuk bisnis</a></li>
+                    
+                        <li><a href="/docs/directory.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Direktori SimpleX</a></li>
+                    
+                        <li><a href="/docs/android.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Mengakses berkas Android</a></li>
+                    
+                        <li><a href="/docs/server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Host Server SMP</a></li>
+                    
+                        <li><a href="/docs/xftp-server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Host Server XFTP</a></li>
+                    
+                        <li><a href="/docs/webrtc.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Server WebRTC</a></li>
+                    
+                        <li><a href="/downloads/" class=" lg:px-[20px] inline-block whitespace-nowrap">Unduhan</a></li>
+                    
+                        <li><a href="/reproduce/" class=" lg:px-[20px] inline-block whitespace-nowrap">Verify & reproduce builds</a></li>
+                    
+                        <li><a href="/transparency/" class=" lg:px-[20px] inline-block whitespace-nowrap">Transparansi</a></li>
+                    
+                        <li><a href="/security/" class=" lg:px-[20px] inline-block whitespace-nowrap">Keamanan</a></li>
+                    
+                        <li><a href="/faq/" class=" lg:px-[20px] inline-block whitespace-nowrap">FAQ</a></li>
+                    
+
+                    <hr>
+
+                    <li><a href="/docs/translations.html"
+                    >Terjemahkan SimpleX Chat
+                    </a></li>
+                    <li><a href="/docs/android.html"
+                    >Mengakses berkas Android
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/blob/stable/apps/simplex-bot-advanced/Main.hs"
+                        target="_blank">Contoh chat bot
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/tree/stable/packages/simplex-chat-client/typescript"
+                        target="_blank">TypeScript SDK
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/cli.html">Terminal CLI</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq"
+                        target="_blank">SimpleXMQ
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/blog">
+                    <span class="nav-link-text">Blog</span>
+                </a>
+            </li>
+        </ul>
+    </nav>
+
+    <div class="right-links">
+        
+            <a class="box-btn token md:hidden" href="/donate">
+                Donasi
+            </a>
+        
+        <button href="#" class="theme-switch-btn">
+            <svg class="sun" width="469" height="469" viewBox="0 0 469 469" fill="none" xmlns="http://www.w3.org/2000/svg">
+            <path d="M225.768 1.44594C220.301 3.84594 214.701 10.6459 213.768 15.9793C213.234 18.3793 213.101 31.7126 213.368 45.7126L213.768 71.1793L217.634 76.1126C226.701 88.1126 242.968 87.5793 252.301 75.0459C254.968 71.5793 255.101 69.5793 255.101 42.2459C255.101 14.9126 254.968 12.9126 252.301 9.44594C250.834 7.44594 248.034 4.51261 246.168 3.17928C241.768 -0.154057 231.101 -1.08739 225.768 1.44594Z"/>
+            <path d="M72.9687 65.3128C63.7687 71.5794 60.1687 81.4461 63.7687 91.1794C65.502 95.4461 98.702 129.446 104.035 132.379C106.035 133.446 110.569 134.246 114.035 134.246C126.035 134.246 134.435 125.846 134.435 113.846C134.435 110.379 133.635 105.846 132.569 103.846C129.635 98.5128 95.6353 65.3128 91.3687 63.5794C85.102 61.3128 77.902 61.9794 72.9687 65.3128Z"/>
+            <path d="M377.102 63.7128C373.102 65.3128 338.969 98.7794 336.302 103.846C335.236 105.846 334.436 110.379 334.436 113.846C334.436 125.846 342.836 134.246 354.836 134.246C358.302 134.246 362.836 133.446 364.836 132.379C370.169 129.446 403.369 95.4461 405.102 91.1794C408.702 81.4461 405.102 71.5794 395.902 65.3128C391.102 61.9794 383.102 61.3128 377.102 63.7128Z"/>
+            <path d="M211.635 108.246C185.635 113.179 163.502 125.046 144.302 144.112C117.902 170.512 104.968 203.579 106.835 240.246C109.768 297.712 149.102 344.912 205.902 359.179C218.568 362.379 250.302 362.379 262.968 359.179C310.435 347.312 345.768 312.646 358.702 265.046C362.435 251.446 362.835 219.446 359.368 205.712C347.368 158.112 312.302 122.379 265.235 110.112C251.768 106.512 225.502 105.579 211.635 108.246Z"/>
+            <path d="M12.4349 214.779C-0.498477 220.379 -4.09848 237.579 5.23486 248.246C11.2349 255.046 15.6349 255.846 45.3682 255.313C74.0349 254.913 75.1015 254.646 81.6349 245.713C85.9015 239.979 85.5015 228.113 80.8349 221.979C74.4349 213.713 71.2349 212.913 42.1682 212.913C23.7682 213.046 15.2349 213.579 12.4349 214.779Z"/>
+            <path d="M396.035 215.179C393.635 216.379 390.035 219.445 388.035 221.979C383.368 228.112 382.968 239.979 387.235 245.712C394.035 254.779 394.301 254.912 426.435 254.912C458.568 254.912 458.835 254.779 465.635 245.712C469.501 240.512 469.501 227.979 465.635 222.779C458.968 213.845 458.301 213.579 428.035 213.179C404.435 212.912 399.768 213.179 396.035 215.179Z"/>
+            <path d="M103.101 336.779C96.7013 340.779 65.368 373.179 63.768 377.313C57.368 394.513 74.168 411.313 91.368 404.913C95.6347 403.179 129.635 369.979 132.568 364.646C135.368 359.446 134.968 349.046 131.768 343.846C126.168 334.646 112.035 331.179 103.101 336.779Z"/>
+            <path d="M344.035 336.912C341.635 338.379 338.569 341.445 337.102 343.845C333.902 349.045 333.502 359.445 336.302 364.645C339.235 369.979 373.235 403.179 377.502 404.912C387.235 408.512 397.102 404.912 403.369 395.712C406.702 390.779 407.369 383.579 405.102 377.312C403.369 373.045 370.169 339.045 364.835 336.112C359.635 333.312 349.235 333.712 344.035 336.912Z"/>
+            <path d="M225.368 385.712C222.968 387.046 219.368 390.112 217.368 392.646L213.768 397.312V426.379C213.768 458.246 213.901 458.779 222.968 465.446C228.168 469.312 240.701 469.312 245.901 465.446C254.834 458.779 255.101 457.979 255.501 428.246C256.034 397.579 255.234 394.379 246.834 387.979C241.101 383.579 231.634 382.512 225.368 385.712Z"/>
+            </svg>
+
+            <svg class="moon" width="469" height="469" viewBox="5 5 20 23" xmlns="http://www.w3.org/2000/svg">
+                <path d="M10.895 7.574c0 7.55 5.179 13.67 11.567 13.67 1.588 0 3.101-0.38 4.479-1.063-1.695 4.46-5.996 7.636-11.051 7.636-6.533 0-11.83-5.297-11.83-11.83 0-4.82 2.888-8.959 7.023-10.803-0.116 0.778-0.188 1.573-0.188 2.39z"></path>
+            </svg>
+        </button>
+
+        
+
+        <button id="cross-btn" class="nav-toggle-btn">
+            <svg id="cross" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+            <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z" />
+        </svg>
+        </button>
+    </div>
+</header>
+<div id="mobile-header">
+    <a href="/id" class="logo flex dark:hidden ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-light.svg" alt="" srcset=""></a>
+    <a href="/id" class="logo hidden dark:flex ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-dark.svg" alt="" srcset=""></a>
+
+    <button id="hamburger" class="nav-toggle-btn">
+        <svg viewBox="0 0 100 80" width="36" height="36">
+            <rect width="100" height="15"></rect>
+            <rect y="30" width="100" height="15"></rect>
+            <rect y="60" width="100" height="15"></rect>
+        </svg>
+    </button>
+</div>
+
+
+<script>
+// switch theme
+const sunIcon = document.querySelector('.sun');
+const moonIcon = document.querySelector('.moon');
+
+const userTheme = localStorage.getItem('theme');
+const systemTheme = window.matchMedia('(prefers-color-scheme: dark)').matches;
+const prismThemeLink = document.getElementById('prism-theme')
+
+function iconToggle () {
+    sunIcon.classList.toggle('hidden');
+    moonIcon.classList.toggle('hidden');
+}
+
+function themeCheck() {
+    if (userTheme === 'dark' || (!userTheme && systemTheme)) {
+        document.documentElement.classList.add('dark');
+        moonIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+    }
+    else{
+        sunIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+    }
+}
+themeCheck();
+
+function themeSwitch () {
+    if (document.documentElement.classList.contains('dark')) {
+        document.documentElement.classList.remove('dark');
+        localStorage.setItem('theme', 'light');
+        if(prismThemeLink){
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+        iconToggle();
+    } else {
+        document.documentElement.classList.add('dark');
+        localStorage.setItem('theme', 'dark');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+        iconToggle();
+    }
+}
+
+const nav = document.querySelector('header#navbar');
+
+window.addEventListener('click',(e)=>{
+    if(e.target.closest('.nav-link')){
+        if(e.target.closest('.nav-link').classList.contains('active')){
+            e.target.closest('.nav-link').classList.remove('active');
+        }
+        else{
+            document.querySelectorAll('.nav-link').forEach(el => el.classList.remove('active'))
+            e.target.closest('.nav-link').classList.add('active');
+        }
+    }
+    else if(e.target.closest('.nav-toggle-btn')){
+        if(nav.classList.contains('open')){
+            nav.classList.remove('open');
+            document.getElementById('mobile-header').classList.remove('nav-open');
+            document.documentElement.classList.remove('lock-scroll');
+        }
+        else{
+            document.documentElement.classList.add('lock-scroll');
+            document.getElementById('mobile-header').classList.add('nav-open');
+            nav.classList.add('open');
+        }
+    }
+    else if(e.target.closest('.theme-switch-btn')){
+        themeSwitch();
+    }
+});
+</script>
+
+        <html><head><link rel="stylesheet" href="/file-assets/index.css">
+<style>
+  /* Reset website .card styles that conflict with xftp bundle */
+  #app .card { cursor: default; }
+  #app .card,
+  #app .card > div { transition: unset; height: auto; }
+  #app .card > div > * { opacity: unset; max-height: unset; transform: unset; transition: unset; }
+
+  /* Align xftp bundle with website design */
+  #app { font-family: inherit; color: #3F484B; max-width: 600px; width: 100%; margin: 0 auto; padding: 0; }
+  #app .card { background: transparent; box-shadow: none; padding: 0; border-radius: 0; }
+  #app .card > h1 { display: none; }
+  .dark #app h1 { color: #fff; }
+  #app .drop-zone { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; }
+  #app .drop-zone.drag-over { border-color: #0053D0; background: #DBEEFF; }
+  #app .btn { background: #0053D0; border-radius: 34px; padding: 12px 32px; font-size: .9rem; font-weight: 600; }
+  #app .btn:hover { background: #1661D1; }
+  #app .btn-secondary { background: #6b7280; border-radius: 34px; }
+  #app .hint { color: #6b7280; }
+  #app .link-row input { border-radius: 8px; border-color: #c5d3de; }
+  #app .security-note { background: #ffffff; border-radius: 12px; color: #3F484B; }
+  #app .security-note a { color: #0197FF; }
+  #app .success { color: #0053D0; }
+
+  .dark #app { color: #e5e7eb; }
+  .dark #app .card { background: transparent; box-shadow: none; }
+  .dark #app .drop-zone { border-color: #374151; }
+  .dark #app .drop-zone.drag-over { border-color: #70F0F9; background: #1B325C; }
+  .dark #app .btn { background: #70F0F9; color: #000832; }
+  .dark #app .btn:hover { background: #66D9E2; }
+  .dark #app .link-row input { border-color: #374151; background: #071C46; color: #e5e7eb; }
+  .dark #app .security-note { background: #0B2A59; color: #d1d5db; }
+  .dark #app .security-note a { color: #70F0F9; }
+  .dark #app .success { color: #70F0F9; }
+
+  #app #upload-error { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; text-align: center; }
+  .dark #app #upload-error { border-color: #374151; }
+
+  #app .stage > .btn { margin-top: 20px; }
+  #app .security-note { margin-top: 20px; }
+  #app .drop-zone .btn { margin: 10px 0 16px; }
+
+  /* Protocol overlay: image fixed, text scrolls natively */
+  /* Push popup below navbar at all widths */
+  #xftp-protocol { padding-top: 70px; }
+  #xftp-protocol .overlay-card {
+    display: flex;
+    flex-direction: column;
+    position: relative;
+    overflow: hidden;
+  }
+  @media (min-width: 768px) {
+    #xftp-protocol .overlay-card { max-height: min(660px, 100%); }
+  }
+  #xftp-protocol .overlay-card > h1 {
+    flex-shrink: 0;
+    padding-bottom: 16px;
+    margin-bottom: 0;
+    z-index: 1;
+  }
+  @media (min-width: 1024px) and (max-height: 750px) {
+    #xftp-protocol .overlay-card > h1 {
+      font-size: 22px;
+    }
+  }
+  /* .flex is the full-width scroll container */
+  #xftp-protocol .overlay-card > .flex {
+    flex: 1;
+    min-height: 0;
+    overflow-y: auto;
+    scrollbar-width: thin;
+    scrollbar-color: #c5d3de transparent;
+  }
+  .dark #xftp-protocol .overlay-card > .flex {
+    scrollbar-color: #374151 transparent;
+  }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar { width: 6px; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-track { background: transparent; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #c5d3de; border-radius: 3px; }
+  .dark #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #374151; }
+  /* Desktop: text stays left, image fixed on right */
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card > .flex > div:first-child {
+      max-width: 50%;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child {
+      position: absolute;
+      right: 56px;
+      top: 0;
+      bottom: 0;
+      left: 55%;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      pointer-events: none;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child > div {
+      height: 100%;
+      padding: 40px 0;
+      box-sizing: border-box;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child img {
+      height: 100%;
+    }
+  }
+  #xftp-protocol .close-overlay-btn {
+    position: absolute;
+    top: 24px;
+    right: 24px;
+    cursor: pointer;
+    z-index: 3;
+    fill: #606C71;
+  }
+  .dark #xftp-protocol .close-overlay-btn { fill: #e5e7eb; }
+  /* Scroll fade: gradient over text area only, hidden at bottom */
+  #xftp-protocol .overlay-card::after {
+    content: '';
+    position: absolute;
+    bottom: 40px;
+    left: 24px;
+    right: 24px;
+    height: 48px;
+    background: linear-gradient(rgba(255,255,255,0), #fff);
+    pointer-events: none;
+    z-index: 2;
+    transition: opacity 0.2s;
+  }
+  .dark #xftp-protocol .overlay-card::after {
+    background: linear-gradient(rgba(7,28,70,0), #071C46);
+  }
+  @media (min-width: 640px) {
+    #xftp-protocol .overlay-card::after { bottom: 56px; left: 56px; right: 56px; }
+  }
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card::after { right: 55%; }
+  }
+  #xftp-protocol.scrolled-bottom .overlay-card::after { opacity: 0; }
+  #xftp-protocol .overlay-card.flex,
+  #xftp-protocol.flex .overlay-card { animation: overlaySlideIn 0.25s ease-out; }
+  @keyframes overlaySlideIn {
+    from { opacity: 0; transform: scale(0.95) translateY(10px); }
+    to { opacity: 1; transform: scale(1) translateY(0); }
+  }
+  #xftp-protocol.overlay-closing { animation: overlayFadeOut 0.2s ease-in forwards; }
+  #xftp-protocol.overlay-closing .overlay-card { animation: overlaySlideOut 0.2s ease-in forwards; }
+  @keyframes overlayFadeOut {
+    from { opacity: 1; }
+    to { opacity: 0; }
+  }
+  @keyframes overlaySlideOut {
+    from { opacity: 1; transform: scale(1) translateY(0); }
+    to { opacity: 0; transform: scale(0.95) translateY(10px); }
+  }
+
+  .file-proto-link {
+    font-size: 1.25rem;
+    font-weight: 600;
+    background: linear-gradient(90deg, #001aa7 0%, #0095e7 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+    text-decoration: none;
+  }
+  .dark .file-proto-link {
+    background: linear-gradient(90deg, #019bfe 0%, #64fdff 58%, #c8feff 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+  }
+
+</style>
+
+</head><body><section class="bg-secondary-bg-light dark:bg-primary-bg-dark py-10 mt-[66px] px-5">
+  <div class="container flex flex-col items-center mx-auto">
+    <noscript>
+      <p class="text-center text-grey-black dark:text-white py-10">
+        JavaScript is required for file transfer.
+      </p>
+    </noscript>
+    <h1 class="text-[38px] text-center font-bold text-active-blue mb-8">SimpleX File Transfer</h1>
+    <div id="app" data-xftp-app="" data-no-hashchange="" class="w-full">
+      <div class="card">
+        <div class="drop-zone">
+          <p>Drag &amp; drop a file here</p>
+          <p class="hint">or</p>
+          <span class="btn">Choose file</span>
+          <p class="hint">Max 100 MB - <a href="#join-simplex">SimpleX Chat app</a> supports files up to 1 GB</p>
+        </div>
+      </div>
+    </div>
+    <template id="dl-placeholder">
+      <div class="card">
+        <h1>SimpleX File Transfer</h1>
+        <div class="stage">
+          <p>File available</p>
+          <button class="btn">Download</button>
+          <div class="security-note">
+            <p>This file is encrypted - data routers never see file contents, name or size.</p>
+            <p>The encryption key is in the link’s hash fragment - it is never sent to any server.</p>
+            <p>For better security, use <a href="https://simplex.chat/download">SimpleX Chat</a> app.</p>
+          </div>
+        </div>
+      </div>
+    </template>
+    <script>if(location.hash.length>50){var a=document.getElementById("app"),t=document.getElementById("dl-placeholder");if(a&&t)a.replaceChildren(t.content.cloneNode(true))}</script>
+    <script type="module" src="/file-assets/index.js"></script>
+
+    <p class="text-base text-center text-grey-black dark:text-white mt-10 max-w-[600px]">Send files securely with <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span> — no accounts, no tracking.</p>
+    <a href="javascript:void(0)" data-show-overlay="xftp-protocol" class="open-overlay-btn file-proto-link mt-3 block text-center">Learn more about XFTP protocol</a>
+  </div>
+</section>
+
+<section class="bg-primary-bg-light dark:bg-secondary-bg-dark py-[90px] px-5">
+  <div class="container flex flex-col items-center mx-auto text-center">
+    <h2 class="text-[35px] leading-[45px] md:text-[45px] md:leading-[55px] text-grey-black dark:text-white font-bold mb-5">
+      Get SimpleX Chat — the most secure &amp; private messenger
+    </h2>
+    <p class="text-base text-grey-black dark:text-white mb-14 max-w-[600px]">
+      The file transfer you just used uses the same data routing protocol as SimpleX Chat. The app has end-to-end encrypted messaging, voice and video calls, groups, and sending files. No account. No phone. No email. No user profile IDs.
+    </p>
+    <div class="flex items-center justify-center gap-4 flex-wrap">
+      <a href="https://apps.apple.com/us/app/simplex-chat/id1605771084" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apple_store.svg"></a>
+      <a href="https://play.google.com/store/apps/details?id=chat.simplex.app" target="_blank"><img class="h-[40px] w-auto" src="/img/new/google_play.svg"></a>
+      <a href="/id/fdroid"><img class="h-[40px] w-auto" src="/img/new/f_droid.svg"></a>
+      <a href="https://testflight.apple.com/join/DWuT2LQu" target="_blank"><img class="h-[40px] w-auto" src="/img/new/testflight.png"></a>
+      <a href="https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-aarch64.apk" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apk_icon.png"></a>
+    </div>
+  </div>
+</section>
+
+
+  
+    
+    <div id="xftp-protocol" data-scroll-to="" class="overlay hidden fixed top-0 left-0 bottom-0 right-0 before:absolute before:w-full before:h-full bg-transparent before:bg-secondary-bg-light dark:before:bg-primary-bg-dark before:opacity-90 items-center justify-center p-3 md:p-10 z-[10000]">
+        <div class="overlay-card w-full md:w-fit md:max-w-[1276px] bg-white dark:bg-card-bg-dark opacity-100 h-full md:h-fit md:max-h-[660px] z-[10001] rounded-md shadow-[0px_3px_12px_rgba(0,0,0,0.2)] p-6 py-10 sm:p-14 overflow-auto scale-100">
+            <h1 class="text-3xl font-bold text-active-blue mb-6 ">XFTP protocol: the most secure file transfer</h1>
+            <div class="flex flex-col-reverse lg:flex-row gap-10 justify-between">
+                
+                    <div class="lg:max-w-[448px]">
+                        <div class="text-grey-black dark:text-white flex flex-col gap-6 text-base">
+                            <div>
+  <h3 class="font-bold text-lg mb-2">No account required</h3>
+  <p>Each file fragment uses a new random key. Data routers have no "users" or "files" - they transfer encrypted file fragments of fixed sizes.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Triple-encrypted in your browser</h3>
+  <p>File encryption key is present only in the URL hash fragment - your browser never sends it to a server. There are 3 encryption layers: TLS transport, per-recipient encryption (unique ephemeral key per transfer), and file <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span>.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Independent data routers</h3>
+  <p>When file is split to fragments, it is sent via network routers operated by independent parties. No operator can see the actual file size or name. Even if a router is compromised, it can only see encrypted fragments of fixed size. File fragments are cached by network routers for approximately 48 hours.</p>
+</div>
+<p class="mt-4">
+  <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/xftp.md" target="_blank" rel="noopener" class="text-active-blue hover:underline">
+    Read the XFTP protocol specification →
+  </a>
+</p>
+
+                        </div>
+                    </div>
+                
+
+                
+                    <div class="max-w-[448px]">
+                        <div class="flex items-center justify-center">
+                            <img class="w-full max-w-[448px] min-w-[300px] dark:hidden" src="/img/new/xftp-protocol.svg" alt="">
+                            <img class="w-full max-w-[448px] min-w-[300px] hidden dark:block" src="/img/new/xftp-protocol-dark.svg" alt="">
+                        </div>
+                    </div>
+                
+            </div>
+
+            <svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+                <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z"></path>
+            </svg>
+        </div>
+    </div>
+
+
+
+<script>
+  window.__XFTP_I18N__ = {
+    "title": "SimpleX File Transfer",
+    "dropZone": "Drag & drop a file here",
+    "dropZoneHint": "or",
+    "chooseFile": "Choose file",
+    "maxSizeHint": "Max 100 MB - <a href=\"#join-simplex\">SimpleX Chat app</a> supports files up to 1 GB",
+    "encrypting": "Encrypting…",
+    "uploading": "Uploading…",
+    "cancel": "Cancel",
+    "fileUploaded": "File uploaded",
+    "copy": "Copy",
+    "copied": "Copied!",
+    "share": "Share",
+    "expiryHint": "Files are typically available for 48 hours.",
+    "securityNote1": "Your file was encrypted in the browser - data routers never see file contents, name or size.",
+    "securityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "securityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "retry": "Retry",
+    "downloading": "Downloading…",
+    "decrypting": "Decrypting…",
+    "downloadComplete": "Download complete",
+    "download": "Download",
+    "fileTooLarge": "File too large (%size%). Maximum is 100 MB. The <a href=\"#join-simplex\">SimpleX app</a> supports files up to 1 GB.",
+    "fileEmpty": "File is empty.",
+    "invalidLink": "Invalid or corrupted link.",
+    "initError": "Failed to initialize: %error%",
+    "fileAvailable": "File available (~%size%)",
+    "dlSecurityNote1": "This file is encrypted - data routers never see file contents, name or size.",
+    "dlSecurityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "dlSecurityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "workersRequired": "Web Workers required — update your browser"
+  }
+</script>
+
+<script>
+  // Intercept close for #xftp-protocol to add fade-out animation
+  document.getElementById('xftp-protocol')?.addEventListener('click', function(e) {
+    if (e.target.closest('.close-overlay-btn') || (e.target.closest('.overlay') && !e.target.closest('.overlay-card'))) {
+      e.stopPropagation();
+      var el = document.getElementById('xftp-protocol');
+      el.classList.add('overlay-closing');
+      el.addEventListener('animationend', function handler() {
+        el.removeEventListener('animationend', handler);
+        el.classList.remove('flex', 'overlay-closing');
+        el.classList.add('hidden');
+        document.body.classList.remove('lock-scroll');
+        history.replaceState(null, null, ' ');
+      });
+    }
+  }, true);
+
+  // Hide scroll fade gradient when text bottom is visible (works with column-reverse)
+  var scrollArea = document.querySelector('#xftp-protocol .overlay-card > .flex');
+  if (scrollArea) {
+    var textCol = scrollArea.querySelector(':scope > div:first-child > div');
+    function checkScrollBottom() {
+      if (!textCol) return;
+      var scrollRect = scrollArea.getBoundingClientRect();
+      if (scrollRect.height === 0) return; // not laid out yet
+      var textBottom = textCol.getBoundingClientRect().bottom;
+      document.getElementById('xftp-protocol').classList.toggle('scrolled-bottom', textBottom <= scrollRect.bottom + 10);
+    }
+    scrollArea.addEventListener('scroll', checkScrollBottom);
+    new MutationObserver(function() {
+      if (!document.getElementById('xftp-protocol').classList.contains('hidden')) {
+        requestAnimationFrame(checkScrollBottom);
+      }
+    }).observe(document.getElementById('xftp-protocol'), { attributes: true, attributeFilter: ['class'] });
+  }
+</script>
+
+<div id="address-portability" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Address portability</h1><div class="overlay-content"><p>Similarly to <a href="https://en.wikipedia.org/wiki/Local_number_portability">phone number portability</a> (the ability of the customer to transfer the service to another provider without changing the number), the address portability means the ability of a communication service customer to change the service provider without changing the service address. Many <a href="#federated-network">federated networks</a> support SRV records to provide address portability, but allowing service users to set up their own domains for the addresses is not as commonly supported by the available server and client software as for email.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="federated-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Federated network</h1><div class="overlay-content"><p>Federated network is provided by several entities that agree upon the standards and operate the network collectively. This allows the users to choose their provider, that will hold their account, their messaging history and contacts, and communicate with other providers' servers on behalf of the user. The examples are email, XMPP, Matrix and Mastodon.</p><p>The advantage of that design is that there is no single organization that all users depend on, and the standards are more difficult to change, unless it benefits all users. There are several disadvantages: 1) the innovation is slower, 2) each user account still depends on a single organization, and in most cases can't move to another provider without changing their network address – there is no <a href="#address-portability">address portability</a>, 3) the security and privacy are inevitably worse than with the centralized networks.</p><p><a href="https://en.wikipedia.org/wiki/Federation_(information_technology)">Federation on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="anonymous-credentials" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Anonymous credentials</h1><div class="overlay-content"><p>The credential that allows proving something, e.g. the right to access some resource, without identifying the user. This credential can either be generated by a trusted party or by the user themselves and provided together with the request to create the resource. The first approach creates some centralized dependency in most cases. The second approach does not require any trust - this is used in SimpleX network to authorize access to the messaging queues.</p><p><a href="https://en.wikipedia.org/wiki/Digital_credential">Digital credential on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="blockchain" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Blockchain</h1><div class="overlay-content"><p>In a wide sense, blockchain means a sequence of blocks of data, where each block contains a cryptographic hash of the previous block, thus providing integrity to the whole chain. Blockchains are used in many communication and information storage systems to provide integrity and immutability of the data. For example, BluRay disks use blockchain. SimpleX messaging queues also use blockchain - each message includes the hash of the previous message, to ensure the integrity – if any message is modified it will be detected by the recipient when the next message is received. Blockchains are a subset of <a href="#merkle-directed-acyclic-graph">Merkle directed acyclic graphs</a>.</p><p>In a more narrow sense, particularly in media, blockchain is used to refer specifically to distributed ledger, where each record also includes the hash of the previous record, but the blocks have to be agreed by the participating peers using some <a href="https://en.wikipedia.org/wiki/Consensus_(computer_science)">consensus protocol</a>.</p><p><a href="https://en.wikipedia.org/wiki/Blockchain">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="merkle-directed-acyclic-graph" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Merkle directed acyclic graph</h1><div class="overlay-content"><p>Also known as Merkle DAG, a data structure based on a general graph structure where node contains the cryptographic hashes of the previous nodes that point to it. Merkle trees are a subset of Merkle DAGs - in this case each leaf contains a cryptographic hash of the parent.</p><p>This structure by design allows to verify the integrity of the whole structure by computing its hashes and comparing with the hashes included in the nodes, in the same way as with <a href="#blockchain">blockchain</a>.</p><p>The motivation to use DAG in distributed environments instead of a simpler linear blockchain is to allow concurrent additions, when there is no requirement for a single order of added items. Merkle DAG is used, for example, in <a href="https://en.wikipedia.org/wiki/InterPlanetary_File_System">IPFS</a> and will be used in decentralized SimpleX groups.</p><p><a href="https://en.wikipedia.org/wiki/Merkle_tree">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="break-in-recovery" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Break-in recovery</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="double-ratchet-algorithm" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Double ratchet algorithm</h1><div class="overlay-content"><p>It is used by two parties to exchange <a href="#end-to-end-encryption">end-to-end encrypted</a> messages. The parties will use some <a href="#key-agreement-protocol">key agreement protocol</a> to agree on the initial shared secret key.</p><p>Double Ratchet algorithm provides <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>. It is <a href="https://signal.org/docs/specifications/doubleratchet">designed by Signal</a>, and used in SimpleX Chat and many other secure messengers. Most experts consider it the state-of-the-art encryption protocol in message encryption.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="centralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Centralized network</h1><div class="overlay-content"><p>Centralized networks are provided or controlled by a single entity. The examples are Threema, Signal, WhatsApp and Telegram. The advantage of that design is that the provider can innovate faster, and has a centralized approach to security. But the disadvantage is that the provider can change or discontinue the service, and leak, sell or disclose in some other way all users' data, including who they are connected with.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="content-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Content padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="decentralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Decentralized network</h1><div class="overlay-content"><p>Decentralized network is often used to mean "the network based on decentralized blockchain". In its original meaning, decentralized network means that there is no central authority or any other point of centralization in the network, other than network protocols specification. The advantage of decentralized networks is that they are resilient to censorship and to the provider going out of business. The disadvantage is that they are often slower to innovate, and the security may be worse than with the centralized network.</p><p>The examples of decentralized networks are email, web, DNS, XMPP, Matrix, BitTorrent, etc. All these examples have a shared global application-level address space. Cryptocurrency blockchains not only have a shared address space, but also a shared state, so they are more centralized than email. Tor network also has a shared global address space, but also a central authority. SimpleX network does not have a shared application-level address space (it relies on the shared transport-level addresses - SMP relay hostnames or IP addresses), and it does not have any central authority or any shared state.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="defense-in-depth" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Defense in depth</h1><div class="overlay-content"><p>Originally, it is a military strategy that seeks to delay rather than prevent the advance of an attacker, buying time and causing additional casualties by yielding space.</p><p>In information security, defense in depth represents the use of multiple computer security techniques to help mitigate the risk of one component of the defense being compromised or circumvented. An example could be anti-virus software installed on individual workstations when there is already virus protection on the firewalls and servers within the same environment.</p><p>SimpleX network applies defense in depth approach to security by having multiple layers for the communication security and privacy:</p><ul>
+<li>double ratchet algorithm for <a href="#end-to-end-encryption">end-to-end encryption</a> with <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>,</li>
+<li>additional layer of end-to-end encryption for each messaging queue and another encryption layer of encryption from the server to the recipient inside TLS to prevent correlation by ciphertext,</li>
+<li>TLS with only strong ciphers allowed,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-server connection via server offline certificate verification,</li>
+<li>mitigation of replay attacks via signing over transport channel binding,</li>
+<li>multiple layers of <a href="#message-padding">message padding</a> to reduce efficiency of traffic analysis,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-client out-of-band channel when sending the invitation,</li>
+<li>rotation of delivery queues to reduce efficiency of traffic analysis,</li>
+<li>etc.</li>
+</ul><p><a href="https://en.wikipedia.org/wiki/Defence_in_depth">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="end-to-end-encryption" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">End-to-end encryption</h1><div class="overlay-content"><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><p>End-to-end encryption requires agreeing cryptographic keys between the sender and the recipient in a way that no eavesdroppers can access the agreed keys. See <a href="#key-agreement-protocol">key agreement protocol</a>. This key exchange can be compromised via <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>, particularly if key exchange happens via the same communication provider and no out-of-band channel is used to verify key exchange.</p><p><a href="https://en.wikipedia.org/wiki/End-to-end_encryption">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-compromise-security" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-compromise security</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="man-in-the-middle-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Man-in-the-middle attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="message-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Message padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="key-agreement-protocol" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key agreement protocol</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="tooltip-end-to-end-encryption" class="glossary-tooltip"><div class="tooltip-content"><h4 class="tooltip-title">End-to-end encryption</h4><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><button class="read-more-btn open-overlay-btn" data-show-overlay="end-to-end-encryption">Read more</button></div></div><div id="key-exchange" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key exchange</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="mitm-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">MITM attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="non-repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Non-repudiation</h1><div class="overlay-content">Non-repudiation</div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="onion-routing" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Onion routing</h1><div class="overlay-content"><p>A technique for anonymous communication over a computer network that uses multiple layers of message encryption, analogous to the layers of an onion. The encrypted data is transmitted through a series of network nodes called "onion routers," each of which "peels" away a single layer, revealing the data's next destination. The sender remains anonymous because each intermediary knows only the location of the immediately preceding and following nodes.</p><p>The most widely used onion network is <a href="https://en.wikipedia.org/wiki/Tor_(network)">Tor</a>.</p><p>Some elements of SimpleX network use similar ideas in their design - different addresses for the same resource used by different parties, and additional encryption layers. Currently though, SimpleX messaging protocol does not protect sender network address, as the relay server is chosen by the recipient. The delivery relays chosen by sender that are planned for the future would make SimpleX design closer to onion routing.</p><p><a href="https://en.wikipedia.org/wiki/Onion_routing">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="overlay-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Overlay network</h1><div class="overlay-content"><p>Nodes in the overlay network can be thought of as being connected by virtual or logical links, each of which corresponds to a path, perhaps through many physical links, in the underlying network. Tor, for example, is an overlay network on top of IP network, which in its turn is also an overlay network over some underlying physical network.</p><p>SimpleX Clients also form a network using SMP relays and IP or some other overlay network (e.g., Tor), to communicate with each other. SMP relays, on another hand, do not form a network.</p><p><a href="https://en.wikipedia.org/wiki/Overlay_network">Wikipedia</a></p><h1>Non-repudiation</h1><p>The property of the cryptographic or communication system that allows the recipient of the message to prove to any third party that the sender identified by some cryptographic key sent the message. It is the opposite to <a href="#repudiation">repudiation</a>. While in some context non-repudiation may be desirable (e.g., for contractually binding messages), in the context of private communications it may be undesirable.</p><p><a href="https://en.wikipedia.org/wiki/Non-repudiation">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Repudiation</h1><div class="overlay-content"><p>The property of the cryptographic or communication system that allows the sender of the message to plausibly deny having sent the message, because while the recipient can verify that the message was sent by the sender, they cannot prove it to any third party - the recipient has a technical ability to forge the same encrypted message. This is an important quality of private communications, as it allows to have the conversation that can later be denied, similarly to having a private face-to-face conversation.</p><p>See also <a href="#non-repudiation">non-repudiation</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="pairwise-pseudonymous-identifier" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Pairwise pseudonymous identifier</h1><div class="overlay-content"><p>Generalizing <a href="https://csrc.nist.gov/glossary/term/pairwise_pseudonymous_identifier">the definition</a> from NIST Digital Identity Guidelines, it is an opaque unguessable identifier generated by a service used to access a resource by only one party.</p><p>In the context of SimpleX network, these are the identifiers generated by SMP relays to access anonymous messaging queues, with a separate identifier (and access credential) for each accessing party: recipient, sender and and optional notifications subscriber. The same approach is used by XFTP relays to access file chunks, with separate identifiers (and access credentials) for sender and each recipient.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Peer-to-peer</h1><div class="overlay-content"><p>Peer-to-peer (P2P) is the network architecture when participants have equal rights and communicate directly via a general purpose transport or overlay network. Unlike client-server architecture, all peers in a P2P network both provide and consume the resources. In the context of messaging, P2P architecture usually means that the messages are sent between peers, without user accounts or messages being stored on any servers. Examples are Tox, Briar, Cwtch and many others.</p><p>The advantage is that the participants do not depend on any servers. There are <a href="./SIMPLEX.md#comparison-with-p2p9-messaging-protocols">multiple downsides</a> to that architecture, such as no asynchronous message delivery, the need for network-wide peer addresses, possibility of network-wide attacks, that are usually mitigated only by using a centralized authority. These disadvantages are avoided with <a href="#proxied-peer-to-peer">proxied P2P</a> architecture.</p><p><a href="https://en.wikipedia.org/wiki/Peer-to-peer">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="proxied-peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Proxied peer-to-peer</h1><div class="overlay-content"><p>Network topology of the communication system when peers communicate via proxies that do not form the network themselves. Such design is used in Pond, that has a fixed home server for each user, and in SimpleX, that uses multiple relays providing temporary connections.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="perfect-forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Perfect forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-cryptography" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum cryptography</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-hybrid-crypto" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum hybrid crypto</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="recovery-from-compromise" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Recovery from compromise</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="user-identity" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">User identity</h1><div class="overlay-content"><p>In a communication system it refers to anything that uniquely identifies the users to the network. Depending on the communication network, it can be a phone number, email address, username, public key or a random opaque identifier. Most messaging networks rely on some form of user identity. SimpleX appears to be the only messaging network that does not rely on any kind of user identity - see <a href="https://en.wikipedia.org/wiki/Comparison_of_instant_messaging_protocols">this comparison</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div></body></html>
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+                        <a href="https://github.com/simplex-chat/simplex-chat#please-support-us-with-your-donations"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
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+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
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+                        <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            SimpleX Whitepaper
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+                        </a>
+                        <a href="https://github.com/simplex-chat/simplex-chat/blob/stable/docs/protocol/simplex-chat.md"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            Protokol SimpleX Chat
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                        <a href="https://github.com/simplex-chat/simplex-chat/blob/stable/docs/CLI.md"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            Terminal CLI
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                        <a href="https://github.com/simplex-chat/simplex-chat/tree/stable/bots"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            SimpleX bots API
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
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+                        <a href="https://www.linkedin.com/company/simplex-chat/" target="_blank">
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+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M20.0408 0.926758C8.9951 0.926758 0.0407715 9.88109 0.0407715 20.9268C0.0407715 31.9724 8.9951 40.9268 20.0408 40.9268C31.0864 40.9268 40.0408 31.9724 40.0408 20.9268C40.0408 9.88109 31.0864 0.926758 20.0408 0.926758ZM9.6421 17.4916H14.1745V31.1098H9.6421V17.4916ZM14.4731 13.279C14.4437 11.9438 13.4889 10.9268 11.9383 10.9268C10.3878 10.9268 9.3741 11.9438 9.3741 13.279C9.3741 14.5866 10.3579 15.6328 11.8794 15.6328H11.9084C13.4889 15.6328 14.4731 14.5866 14.4731 13.279ZM25.3017 17.1718C28.2843 17.1718 30.5203 19.1187 30.5203 23.3015L30.5201 31.1098H25.9879V23.824C25.9879 21.994 25.3319 20.7453 23.6912 20.7453C22.439 20.7453 21.6932 21.5871 21.3656 22.4003C21.2458 22.6916 21.2164 23.0976 21.2164 23.5046V31.1101H16.6834C16.6834 31.1101 16.7431 18.7698 16.6834 17.492H21.2164V19.4208C21.8179 18.4936 22.8953 17.1718 25.3017 17.1718Z" />
+                            </svg>
+                        </a>
+                        <a href="https://simplex.chat/feed.rss" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 512 512" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M256 512C397.385 512 512 397.385 512 256C512 114.615 397.385 0 256 0C114.615 0 0 114.615 0 256C0 397.385 114.615 512 256 512ZM132.791 157.572C215.586 161.137 279.503 196.841 323.612 267.517C344.138 302.436 354.186 339.959 354.57 380.122H406.814C409.639 231.301 280.977 103.1 132.791 106.05V157.572ZM309.994 343.843C311.593 356.035 313.096 367.877 314.65 380.116H261.161C260.496 344.968 248.303 314.452 223.472 289.485C198.613 264.491 168.097 252.282 132.755 251.38V199.743C198.318 196.346 288.694 244.344 309.994 343.843ZM132.766 336.706C129.293 354.261 137.796 370.323 154.848 378.004L155.461 378.242C156.267 378.558 156.912 378.81 157.577 378.985C173.012 383.066 186.298 379.318 196.604 367.168C206.463 355.544 208.397 342.145 201.87 328.354C195.205 314.271 183.419 307.215 167.834 307.356C151.188 307.509 135.971 320.504 132.766 336.706Z" />
+                            </svg>
+                        </a>
+                    </div>
+                </div>
+            </article>
+        </div>
+        <a href="#" class="text-grey-black dark:text-white text-[16px] text-center lg:ltr:text-left lg:rtl:text-right font-medium leading-[28px] tracking-[0.01em] block mt-[60px]">© 2020-2025 SimpleX Chat | Open-Source Project</a>
+    </div>
+</section>
+
+
+        <script src="/js/swiper-bundle.min.js"></script>
+        <script src="/js/script.js"></script>
+    </body>
+</html>
diff --git a/id/index.html b/id/index.html
index f40587f93d..ef97aa517e 100644
--- a/id/index.html
+++ b/id/index.html
@@ -153,6 +153,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/id/invitation/index.html b/id/invitation/index.html
index 5a2af66510..c5272d3cae 100644
--- a/id/invitation/index.html
+++ b/id/invitation/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/id/messaging/index.html b/id/messaging/index.html
index 7cb7dc097b..a7735e32e1 100644
--- a/id/messaging/index.html
+++ b/id/messaging/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/id/old/index.html b/id/old/index.html
index 06fba46153..e2d625af4f 100644
--- a/id/old/index.html
+++ b/id/old/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/id/why/index.html b/id/why/index.html
index be062c4068..99f1cc74f2 100644
--- a/id/why/index.html
+++ b/id/why/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/img/new/xftp-protocol-dark.svg b/img/new/xftp-protocol-dark.svg
new file mode 100644
index 0000000000..f154fdeb6a
--- /dev/null
+++ b/img/new/xftp-protocol-dark.svg
@@ -0,0 +1,115 @@
+<svg width="440" height="520" viewBox="-20 0 440 520" fill="none" xmlns="http://www.w3.org/2000/svg">
+  <!-- Sender browser -->
+  <rect x="120" y="16" width="160" height="56" rx="10" stroke="#70F0F9" stroke-width="1.5"/>
+  <text x="200" y="40" text-anchor="middle" font-family="system-ui, sans-serif" font-size="13" font-weight="600" fill="#70F0F9">Sender's browser</text>
+  <text x="200" y="56" text-anchor="middle" font-family="system-ui, sans-serif" font-size="11" fill="rgba(112,240,249,0.7)">encrypts file</text>
+
+  <!-- Arrow down from sender to chunks -->
+  <line x1="200" y1="72" x2="200" y2="120" stroke="#70F0F9" stroke-width="1.5" marker-end="url(#arrowC)"/>
+
+  <!-- Chunks row -->
+  <rect x="112" y="120" width="176" height="40" rx="8" fill="none" stroke="#70F0F9" stroke-width="1" stroke-dasharray="4 3"/>
+  <text x="200" y="145" text-anchor="middle" font-family="system-ui, sans-serif" font-size="12" fill="#70F0F9">encrypted chunks</text>
+
+  <!-- Arrows from chunks to servers -->
+  <line x1="152" y1="160" x2="80" y2="220" stroke="#70F0F9" stroke-width="1.5" marker-end="url(#arrowC)"/>
+  <line x1="200" y1="160" x2="200" y2="220" stroke="#70F0F9" stroke-width="1.5" marker-end="url(#arrowC)"/>
+  <line x1="248" y1="160" x2="320" y2="220" stroke="#70F0F9" stroke-width="1.5" marker-end="url(#arrowC)"/>
+
+  <!-- Server 1 (SimpleX) -->
+  <rect x="20" y="220" width="120" height="56" rx="6" fill="none" stroke="#70F0F9" stroke-width="1.5"/>
+  <g transform="translate(28, 227)">
+    <rect width="14" height="4" rx="1" fill="rgba(112,240,249,0.5)"/>
+    <rect y="6" width="14" height="4" rx="1" fill="rgba(112,240,249,0.5)"/>
+    <rect y="12" width="14" height="4" rx="1" fill="rgba(112,240,249,0.5)"/>
+    <circle cx="11" cy="2" r="1" fill="#70F0F9"/>
+    <circle cx="11" cy="8" r="1" fill="#70F0F9"/>
+    <circle cx="11" cy="14" r="1" fill="#70F0F9"/>
+  </g>
+  <text x="80" y="244" text-anchor="middle" font-family="system-ui, sans-serif" font-size="11" font-weight="600" fill="#70F0F9">SimpleX</text>
+  <text x="80" y="258" text-anchor="middle" font-family="system-ui, sans-serif" font-size="9" fill="rgba(112,240,249,0.7)">XFTP server</text>
+
+  <!-- Server 2 (Flux) -->
+  <rect x="155" y="220" width="90" height="56" rx="6" fill="none" stroke="#70F0F9" stroke-width="1.5"/>
+  <g transform="translate(163, 227)">
+    <rect width="14" height="4" rx="1" fill="rgba(112,240,249,0.5)"/>
+    <rect y="6" width="14" height="4" rx="1" fill="rgba(112,240,249,0.5)"/>
+    <rect y="12" width="14" height="4" rx="1" fill="rgba(112,240,249,0.5)"/>
+    <circle cx="11" cy="2" r="1" fill="#70F0F9"/>
+    <circle cx="11" cy="8" r="1" fill="#70F0F9"/>
+    <circle cx="11" cy="14" r="1" fill="#70F0F9"/>
+  </g>
+  <text x="200" y="244" text-anchor="middle" font-family="system-ui, sans-serif" font-size="11" font-weight="600" fill="#70F0F9">Flux</text>
+  <text x="200" y="258" text-anchor="middle" font-family="system-ui, sans-serif" font-size="9" fill="rgba(112,240,249,0.7)">XFTP server</text>
+
+  <!-- Server 3 (SimpleX) -->
+  <rect x="260" y="220" width="120" height="56" rx="6" fill="none" stroke="#70F0F9" stroke-width="1.5"/>
+  <g transform="translate(268, 227)">
+    <rect width="14" height="4" rx="1" fill="rgba(112,240,249,0.5)"/>
+    <rect y="6" width="14" height="4" rx="1" fill="rgba(112,240,249,0.5)"/>
+    <rect y="12" width="14" height="4" rx="1" fill="rgba(112,240,249,0.5)"/>
+    <circle cx="11" cy="2" r="1" fill="#70F0F9"/>
+    <circle cx="11" cy="8" r="1" fill="#70F0F9"/>
+    <circle cx="11" cy="14" r="1" fill="#70F0F9"/>
+  </g>
+  <text x="320" y="244" text-anchor="middle" font-family="system-ui, sans-serif" font-size="11" font-weight="600" fill="#70F0F9">SimpleX</text>
+  <text x="320" y="258" text-anchor="middle" font-family="system-ui, sans-serif" font-size="9" fill="rgba(112,240,249,0.7)">XFTP server</text>
+
+  <!-- Arrows from servers down -->
+  <line x1="80" y1="276" x2="152" y2="336" stroke="#70F0F9" stroke-width="1.5" marker-end="url(#arrowC)"/>
+  <line x1="200" y1="276" x2="200" y2="336" stroke="#70F0F9" stroke-width="1.5" marker-end="url(#arrowC)"/>
+  <line x1="320" y1="276" x2="248" y2="336" stroke="#70F0F9" stroke-width="1.5" marker-end="url(#arrowC)"/>
+
+  <!-- Re-encrypt label -->
+  <text x="330" y="310" text-anchor="start" font-family="system-ui, sans-serif" font-size="10" fill="rgba(112,240,249,0.7)">re-encrypted</text>
+  <text x="330" y="322" text-anchor="start" font-family="system-ui, sans-serif" font-size="10" fill="rgba(112,240,249,0.7)">per recipient</text>
+
+  <!-- Chunks row (download) -->
+  <rect x="112" y="336" width="176" height="40" rx="8" fill="none" stroke="#70F0F9" stroke-width="1" stroke-dasharray="4 3"/>
+  <text x="200" y="361" text-anchor="middle" font-family="system-ui, sans-serif" font-size="12" fill="#70F0F9">encrypted chunks</text>
+
+  <!-- Arrow down to recipient -->
+  <line x1="200" y1="376" x2="200" y2="424" stroke="#70F0F9" stroke-width="1.5" marker-end="url(#arrowC)"/>
+
+  <!-- Recipient browser -->
+  <rect x="120" y="424" width="160" height="56" rx="10" stroke="#70F0F9" stroke-width="1.5"/>
+  <text x="200" y="448" text-anchor="middle" font-family="system-ui, sans-serif" font-size="13" font-weight="600" fill="#70F0F9">Recipient's browser</text>
+  <text x="200" y="464" text-anchor="middle" font-family="system-ui, sans-serif" font-size="11" fill="rgba(112,240,249,0.7)">decrypts file</text>
+
+  <!-- Key path (dashed, side) -->
+  <path d="M120 44 L8 44 L8 452 L120 452" stroke="#70F0F9" stroke-width="1.5" stroke-dasharray="6 4" fill="none" marker-end="url(#arrowC)"/>
+  <text x="-6" y="240" text-anchor="middle" font-family="system-ui, sans-serif" font-size="10" fill="#70F0F9" transform="rotate(-90 -6 240)">key in URL fragment — never sent to server</text>
+
+
+  <!-- Closed padlock: encryption (between sender and chunks) -->
+  <g transform="translate(192, 88)">
+    <path d="M4,7 V4 C4,1.2 12,1.2 12,4 V7" stroke="#60a5fa" stroke-width="1.5" fill="none" stroke-linecap="round"/>
+    <rect x="2" y="7" width="12" height="9" rx="2" fill="#60a5fa"/>
+    <circle cx="8" cy="12" r="1.2" fill="#0B2A59"/>
+  </g>
+
+  <!-- Open padlock: decryption (between chunks and recipient) -->
+  <g transform="translate(192, 392)">
+    <path d="M4,7 V4 C4,1.2 12,1.2 12,4 V2" stroke="#60a5fa" stroke-width="1.5" fill="none" stroke-linecap="round"/>
+    <rect x="2" y="7" width="12" height="9" rx="2" fill="#60a5fa"/>
+    <circle cx="8" cy="12" r="1.2" fill="#0B2A59"/>
+  </g>
+
+  <!-- Key icon on dashed line -->
+  <g transform="translate(8, 410)">
+    <circle cx="0" cy="0" r="6" stroke="#FBBF24" stroke-width="2" fill="#FBBF24"/>
+    <circle cx="0" cy="0" r="2" fill="#0B2A59"/>
+    <line x1="6" y1="0" x2="16" y2="0" stroke="#FBBF24" stroke-width="2"/>
+    <line x1="14" y1="0" x2="14" y2="4" stroke="#FBBF24" stroke-width="2"/>
+    <line x1="11" y1="0" x2="11" y2="3.5" stroke="#FBBF24" stroke-width="2"/>
+  </g>
+
+  <!-- Annotation: no shared IDs -->
+  <text x="200" y="510" text-anchor="middle" font-family="system-ui, sans-serif" font-size="10" fill="rgba(112,240,249,0.7)">Each chunk uses unique anonymous credentials — no shared identifiers</text>
+
+  <defs>
+    <marker id="arrowC" viewBox="0 0 10 10" refX="9" refY="5" markerWidth="6" markerHeight="6" orient="auto-start-reverse">
+      <path d="M 0 0 L 10 5 L 0 10 z" fill="#70F0F9"/>
+    </marker>
+  </defs>
+</svg>
diff --git a/img/new/xftp-protocol.svg b/img/new/xftp-protocol.svg
new file mode 100644
index 0000000000..b4cdb11838
--- /dev/null
+++ b/img/new/xftp-protocol.svg
@@ -0,0 +1,130 @@
+<svg width="440" height="520" viewBox="-20 0 440 520" fill="none" xmlns="http://www.w3.org/2000/svg">
+  <!-- Sender browser -->
+  <rect x="120" y="16" width="160" height="56" rx="10" fill="url(#gBox)" stroke="#606C71" stroke-width="1.5"/>
+  <text x="200" y="40" text-anchor="middle" font-family="system-ui, sans-serif" font-size="13" font-weight="600" fill="#fff">Sender's browser</text>
+  <text x="200" y="56" text-anchor="middle" font-family="system-ui, sans-serif" font-size="11" fill="rgba(255,255,255,0.8)">encrypts file</text>
+
+  <!-- Arrow down from sender to chunks -->
+  <line x1="200" y1="72" x2="200" y2="120" stroke="#606C71" stroke-width="1.5" marker-end="url(#arrowG)"/>
+
+  <!-- Chunks row -->
+  <rect x="112" y="120" width="176" height="40" rx="8" fill="#f0f7ff" stroke="#0053D0" stroke-width="1" stroke-dasharray="4 3"/>
+  <text x="200" y="145" text-anchor="middle" font-family="system-ui, sans-serif" font-size="12" fill="#0053D0">encrypted chunks</text>
+
+  <!-- Arrows from chunks to routers -->
+  <line x1="152" y1="160" x2="80" y2="220" stroke="#606C71" stroke-width="1.5" marker-end="url(#arrowG)"/>
+  <line x1="200" y1="160" x2="200" y2="220" stroke="#606C71" stroke-width="1.5" marker-end="url(#arrowG)"/>
+  <line x1="248" y1="160" x2="320" y2="220" stroke="#606C71" stroke-width="1.5" marker-end="url(#arrowG)"/>
+
+  <!-- Router 1 (SimpleX) -->
+  <rect x="20" y="220" width="120" height="56" rx="6" fill="#f0f4f8" stroke="#606C71" stroke-width="1.5"/>
+  <g transform="translate(28, 227)">
+    <rect width="14" height="4" rx="1" fill="#606C71"/>
+    <rect y="6" width="14" height="4" rx="1" fill="#606C71"/>
+    <rect y="12" width="14" height="4" rx="1" fill="#606C71"/>
+    <circle cx="11" cy="2" r="1" fill="#53C1FF"/>
+    <circle cx="11" cy="8" r="1" fill="#53C1FF"/>
+    <circle cx="11" cy="14" r="1" fill="#53C1FF"/>
+  </g>
+  <text x="80" y="244" text-anchor="middle" font-family="system-ui, sans-serif" font-size="11" font-weight="600" fill="#3F484B">SimpleX</text>
+  <text x="80" y="258" text-anchor="middle" font-family="system-ui, sans-serif" font-size="9" fill="#606C71">XFTP router</text>
+
+  <!-- Router 2 (Flux) -->
+  <rect x="155" y="220" width="90" height="56" rx="6" fill="#f0f4f8" stroke="#606C71" stroke-width="1.5"/>
+  <g transform="translate(163, 227)">
+    <rect width="14" height="4" rx="1" fill="#606C71"/>
+    <rect y="6" width="14" height="4" rx="1" fill="#606C71"/>
+    <rect y="12" width="14" height="4" rx="1" fill="#606C71"/>
+    <circle cx="11" cy="2" r="1" fill="#53C1FF"/>
+    <circle cx="11" cy="8" r="1" fill="#53C1FF"/>
+    <circle cx="11" cy="14" r="1" fill="#53C1FF"/>
+  </g>
+  <text x="200" y="244" text-anchor="middle" font-family="system-ui, sans-serif" font-size="11" font-weight="600" fill="#3F484B">Flux</text>
+  <text x="200" y="258" text-anchor="middle" font-family="system-ui, sans-serif" font-size="9" fill="#606C71">XFTP router</text>
+
+  <!-- Router 3 (SimpleX) -->
+  <rect x="260" y="220" width="120" height="56" rx="6" fill="#f0f4f8" stroke="#606C71" stroke-width="1.5"/>
+  <g transform="translate(268, 227)">
+    <rect width="14" height="4" rx="1" fill="#606C71"/>
+    <rect y="6" width="14" height="4" rx="1" fill="#606C71"/>
+    <rect y="12" width="14" height="4" rx="1" fill="#606C71"/>
+    <circle cx="11" cy="2" r="1" fill="#53C1FF"/>
+    <circle cx="11" cy="8" r="1" fill="#53C1FF"/>
+    <circle cx="11" cy="14" r="1" fill="#53C1FF"/>
+  </g>
+  <text x="320" y="244" text-anchor="middle" font-family="system-ui, sans-serif" font-size="11" font-weight="600" fill="#3F484B">SimpleX</text>
+  <text x="320" y="258" text-anchor="middle" font-family="system-ui, sans-serif" font-size="9" fill="#606C71">XFTP router</text>
+
+  <!-- Arrows from routers down -->
+  <line x1="80" y1="276" x2="152" y2="336" stroke="#606C71" stroke-width="1.5" marker-end="url(#arrowG)"/>
+  <line x1="200" y1="276" x2="200" y2="336" stroke="#606C71" stroke-width="1.5" marker-end="url(#arrowG)"/>
+  <line x1="320" y1="276" x2="248" y2="336" stroke="#606C71" stroke-width="1.5" marker-end="url(#arrowG)"/>
+
+  <!-- Re-encrypt label -->
+  <text x="330" y="310" text-anchor="start" font-family="system-ui, sans-serif" font-size="10" fill="#606C71">re-encrypted</text>
+  <text x="330" y="322" text-anchor="start" font-family="system-ui, sans-serif" font-size="10" fill="#606C71">per recipient</text>
+
+  <!-- Chunks row (download) -->
+  <rect x="112" y="336" width="176" height="40" rx="8" fill="#f0f7ff" stroke="#0053D0" stroke-width="1" stroke-dasharray="4 3"/>
+  <text x="200" y="361" text-anchor="middle" font-family="system-ui, sans-serif" font-size="12" fill="#0053D0">encrypted chunks</text>
+
+  <!-- Arrow down to recipient -->
+  <line x1="200" y1="376" x2="200" y2="424" stroke="#606C71" stroke-width="1.5" marker-end="url(#arrowG)"/>
+
+  <!-- Recipient browser -->
+  <rect x="120" y="424" width="160" height="56" rx="10" fill="url(#gBox)" stroke="#606C71" stroke-width="1.5"/>
+  <text x="200" y="448" text-anchor="middle" font-family="system-ui, sans-serif" font-size="13" font-weight="600" fill="#fff">Recipient's browser</text>
+  <text x="200" y="464" text-anchor="middle" font-family="system-ui, sans-serif" font-size="11" fill="rgba(255,255,255,0.8)">decrypts file</text>
+
+  <!-- Key path (dashed, side) -->
+  <path d="M120 44 L8 44 L8 452 L120 452" stroke="#0053D0" stroke-width="1.5" stroke-dasharray="6 4" fill="none" marker-end="url(#arrowB)"/>
+  <text x="-6" y="240" text-anchor="middle" font-family="system-ui, sans-serif" font-size="10" fill="#0053D0" transform="rotate(-90 -6 240)">key in URL fragment - never sent to page server or data router</text>
+
+
+  <!-- Closed padlock: encryption (between sender and chunks) -->
+  <g transform="translate(192, 88)">
+    <path d="M4,7 V4 C4,1.2 12,1.2 12,4 V7" stroke="#0053D0" stroke-width="1.5" fill="none" stroke-linecap="round"/>
+    <rect x="2" y="7" width="12" height="9" rx="2" fill="#0053D0"/>
+    <circle cx="8" cy="12" r="1.2" fill="#fff"/>
+  </g>
+
+  <!-- Open padlock: decryption (between chunks and recipient) -->
+  <g transform="translate(192, 392)">
+    <path d="M4,7 V4 C4,1.2 12,1.2 12,4 V2" stroke="#0053D0" stroke-width="1.5" fill="none" stroke-linecap="round"/>
+    <rect x="2" y="7" width="12" height="9" rx="2" fill="#0053D0"/>
+    <circle cx="8" cy="12" r="1.2" fill="#fff"/>
+  </g>
+
+  <!-- Key icon on dashed line -->
+  <g transform="translate(8, 410)">
+    <circle cx="0" cy="0" r="6" stroke="#D97706" stroke-width="2" fill="#D97706"/>
+    <circle cx="0" cy="0" r="2" fill="#fff"/>
+    <line x1="6" y1="0" x2="16" y2="0" stroke="#D97706" stroke-width="2"/>
+    <line x1="14" y1="0" x2="14" y2="4" stroke="#D97706" stroke-width="2"/>
+    <line x1="11" y1="0" x2="11" y2="3.5" stroke="#D97706" stroke-width="2"/>
+  </g>
+
+  <!-- Annotation: no shared IDs -->
+  <text x="200" y="510" text-anchor="middle" font-family="system-ui, sans-serif" font-size="10" fill="#606C71">Each file fragment uses unique anonymous credentials - no shared identifiers</text>
+
+  <defs>
+    <linearGradient id="gBox" x1="120" y1="16" x2="280" y2="72" gradientUnits="userSpaceOnUse">
+      <stop stop-color="#0053D0"/>
+      <stop offset="1" stop-color="#53C1FF"/>
+    </linearGradient>
+    <linearGradient id="gSrv1" x1="20" y1="220" x2="140" y2="276" gradientUnits="userSpaceOnUse">
+      <stop stop-color="#0053D0"/>
+      <stop offset="1" stop-color="#53C1FF"/>
+    </linearGradient>
+    <linearGradient id="gSrv2" x1="155" y1="220" x2="245" y2="276" gradientUnits="userSpaceOnUse">
+      <stop stop-color="#0053D0"/>
+      <stop offset="1" stop-color="#53C1FF"/>
+    </linearGradient>
+    <marker id="arrowG" viewBox="0 0 10 10" refX="9" refY="5" markerWidth="6" markerHeight="6" orient="auto-start-reverse">
+      <path d="M 0 0 L 10 5 L 0 10 z" fill="#606C71"/>
+    </marker>
+    <marker id="arrowB" viewBox="0 0 10 10" refX="9" refY="5" markerWidth="6" markerHeight="6" orient="auto-start-reverse">
+      <path d="M 0 0 L 10 5 L 0 10 z" fill="#0053D0"/>
+    </marker>
+  </defs>
+</svg>
diff --git a/index.html b/index.html
index e24d20f726..e6c85aaf11 100644
--- a/index.html
+++ b/index.html
@@ -153,6 +153,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/invitation/index.html b/invitation/index.html
index ca6ae2fa81..6de0034f2f 100644
--- a/invitation/index.html
+++ b/invitation/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/it/contact/index.html b/it/contact/index.html
index 1968b023f2..4b6d8d8220 100644
--- a/it/contact/index.html
+++ b/it/contact/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/it/fdroid/index.html b/it/fdroid/index.html
index 0fab45a1eb..7e30f7828c 100644
--- a/it/fdroid/index.html
+++ b/it/fdroid/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/it/file/index.html b/it/file/index.html
new file mode 100644
index 0000000000..2ef1847bc3
--- /dev/null
+++ b/it/file/index.html
@@ -0,0 +1,888 @@
+<!DOCTYPE html>
+<html lang="it"
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+            dir="ltr"
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    >
+    <head>
+        <meta charset="UTF-8">
+        <meta http-equiv="X-UA-Compatible" content="IE=edge">
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        <title>SimpleX File Transfer</title>
+        <meta name="description" content="Send files securely with end-to-end encryption"/>
+        <meta name="Content-Type" content="text/html;charset=utf-8"/>
+        
+        <meta http-equiv="onion-location" content="http://isdb4l77sjqoy2qq7ipum6x3at6hyn3jmxfx4zdhc72ufbmuq4ilwkqd.onion/" />
+        <meta property="og:url" content="https://simplex.chat/" />
+        
+        <meta property="og:type" content="website"/>
+        <meta property="og:title" content="SimpleX File Transfer"/>
+        <meta property="og:description" content="Send files securely with end-to-end encryption"/>
+        <meta property="og:image" content="https://simplex.chat/img/share_simplex.jpg"/>
+        <meta name="twitter:card" content="summary"/>
+        <link rel="icon" type="image/png" sizes="96x96" href="/img/favicon.ico"/>
+
+        <link rel="stylesheet" href="/css/swiper-bundle.min.css">
+        <link rel="stylesheet" href="/css/blog.css">
+        <link href="/css/tailwind.css" rel="stylesheet"/>
+        <link rel="stylesheet" href="/css/style.css">
+        <link rel="stylesheet" href="/css/design3-nav.css">
+        <script async defer src="https://buttons.github.io/buttons.js"></script>
+        <script src="/js/flag-anchor.js"></script>
+        
+    </head>
+    <body class="bg-[#F3FAFF] dark:bg-[#000832]">
+        
+
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+        
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+
+<header id="navbar">
+    <a href="/it" class="logo logo-light ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-light.png" alt="logo"></a>
+    <a href="/it" class="logo logo-dark ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-dark.png" alt="logo"></a>
+
+    <nav id="menu">
+        <ul>
+            <li class="nav-link ">
+                <a href="/it">
+                    <span class="nav-link-text">Home</span>
+                </a>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/directory/">
+                    <span class="nav-link-text">Directory</span>
+                </a>
+            </li>
+
+            
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">Guida</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    
+                        <li><a href="/docs/guide/readme.html" class="">Avvio rapido</a></li>
+                    
+                        <li><a href="/docs/guide/send-messages.html" class="">Inviare messaggi</a></li>
+                    
+                        <li><a href="/docs/guide/secret-groups.html" class="">Gruppi segreti</a></li>
+                    
+                        <li><a href="/docs/guide/chat-profiles.html" class="">Profili di chat</a></li>
+                    
+                        <li><a href="/docs/guide/managing-data.html" class="">Gestione dei dati</a></li>
+                    
+                        <li><a href="/docs/guide/audio-video-calls.html" class="">Chiamate audio e video</a></li>
+                    
+                        <li><a href="/docs/guide/privacy-security.html" class="">Privacy e sicurezza</a></li>
+                    
+                        <li><a href="/docs/guide/app-settings.html" class="">Impostazioni dell'app</a></li>
+                    
+                        <li><a href="/docs/guide/making-connections.html" class="">Creare connessioni</a></li>
+                    
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">Riferimenti</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md"
+                        target="_blank">Whitepaper
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/privacy">Informativa sulla privacy</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/simplex-messaging.md"
+                        target="_blank">Protocollo SMP
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/protocol/simplex-chat.html">Protocollo di chat</a></li>
+                    <li><a href="/docs/glossary.html">Glossario</a></li>
+
+                    <hr>
+
+                    
+                        <li><a href="/docs/simplex.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Rete di SimpleX</a></li>
+                    
+                        <li><a href="/docs/business.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX per il lavoro</a></li>
+                    
+                        <li><a href="/docs/directory.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Directory di SimpleX</a></li>
+                    
+                        <li><a href="/docs/android.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Accesso ai file Android</a></li>
+                    
+                        <li><a href="/docs/server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Ospita un server SMP</a></li>
+                    
+                        <li><a href="/docs/xftp-server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Ospita un server XFTP</a></li>
+                    
+                        <li><a href="/docs/webrtc.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Server WebRTC</a></li>
+                    
+                        <li><a href="/downloads/" class=" lg:px-[20px] inline-block whitespace-nowrap">Download</a></li>
+                    
+                        <li><a href="/reproduce/" class=" lg:px-[20px] inline-block whitespace-nowrap">Verify & reproduce builds</a></li>
+                    
+                        <li><a href="/transparency/" class=" lg:px-[20px] inline-block whitespace-nowrap">Trasparenza</a></li>
+                    
+                        <li><a href="/security/" class=" lg:px-[20px] inline-block whitespace-nowrap">Sicurezza</a></li>
+                    
+                        <li><a href="/faq/" class=" lg:px-[20px] inline-block whitespace-nowrap">Domande frequenti</a></li>
+                    
+
+                    <hr>
+
+                    <li><a href="/docs/translations.html"
+                    >Traduci SimpleX Chat
+                    </a></li>
+                    <li><a href="/docs/android.html"
+                    >Accesso ai file Android
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/blob/stable/apps/simplex-bot-advanced/Main.hs"
+                        target="_blank">Esempio di chat bot
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/tree/stable/packages/simplex-chat-client/typescript"
+                        target="_blank">TypeScript SDK
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/cli.html">Terminale CLI</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq"
+                        target="_blank">SimpleXMQ
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/blog">
+                    <span class="nav-link-text">Blog</span>
+                </a>
+            </li>
+        </ul>
+    </nav>
+
+    <div class="right-links">
+        
+            <a class="box-btn token md:hidden" href="/donate">
+                Dona
+            </a>
+        
+        <button href="#" class="theme-switch-btn">
+            <svg class="sun" width="469" height="469" viewBox="0 0 469 469" fill="none" xmlns="http://www.w3.org/2000/svg">
+            <path d="M225.768 1.44594C220.301 3.84594 214.701 10.6459 213.768 15.9793C213.234 18.3793 213.101 31.7126 213.368 45.7126L213.768 71.1793L217.634 76.1126C226.701 88.1126 242.968 87.5793 252.301 75.0459C254.968 71.5793 255.101 69.5793 255.101 42.2459C255.101 14.9126 254.968 12.9126 252.301 9.44594C250.834 7.44594 248.034 4.51261 246.168 3.17928C241.768 -0.154057 231.101 -1.08739 225.768 1.44594Z"/>
+            <path d="M72.9687 65.3128C63.7687 71.5794 60.1687 81.4461 63.7687 91.1794C65.502 95.4461 98.702 129.446 104.035 132.379C106.035 133.446 110.569 134.246 114.035 134.246C126.035 134.246 134.435 125.846 134.435 113.846C134.435 110.379 133.635 105.846 132.569 103.846C129.635 98.5128 95.6353 65.3128 91.3687 63.5794C85.102 61.3128 77.902 61.9794 72.9687 65.3128Z"/>
+            <path d="M377.102 63.7128C373.102 65.3128 338.969 98.7794 336.302 103.846C335.236 105.846 334.436 110.379 334.436 113.846C334.436 125.846 342.836 134.246 354.836 134.246C358.302 134.246 362.836 133.446 364.836 132.379C370.169 129.446 403.369 95.4461 405.102 91.1794C408.702 81.4461 405.102 71.5794 395.902 65.3128C391.102 61.9794 383.102 61.3128 377.102 63.7128Z"/>
+            <path d="M211.635 108.246C185.635 113.179 163.502 125.046 144.302 144.112C117.902 170.512 104.968 203.579 106.835 240.246C109.768 297.712 149.102 344.912 205.902 359.179C218.568 362.379 250.302 362.379 262.968 359.179C310.435 347.312 345.768 312.646 358.702 265.046C362.435 251.446 362.835 219.446 359.368 205.712C347.368 158.112 312.302 122.379 265.235 110.112C251.768 106.512 225.502 105.579 211.635 108.246Z"/>
+            <path d="M12.4349 214.779C-0.498477 220.379 -4.09848 237.579 5.23486 248.246C11.2349 255.046 15.6349 255.846 45.3682 255.313C74.0349 254.913 75.1015 254.646 81.6349 245.713C85.9015 239.979 85.5015 228.113 80.8349 221.979C74.4349 213.713 71.2349 212.913 42.1682 212.913C23.7682 213.046 15.2349 213.579 12.4349 214.779Z"/>
+            <path d="M396.035 215.179C393.635 216.379 390.035 219.445 388.035 221.979C383.368 228.112 382.968 239.979 387.235 245.712C394.035 254.779 394.301 254.912 426.435 254.912C458.568 254.912 458.835 254.779 465.635 245.712C469.501 240.512 469.501 227.979 465.635 222.779C458.968 213.845 458.301 213.579 428.035 213.179C404.435 212.912 399.768 213.179 396.035 215.179Z"/>
+            <path d="M103.101 336.779C96.7013 340.779 65.368 373.179 63.768 377.313C57.368 394.513 74.168 411.313 91.368 404.913C95.6347 403.179 129.635 369.979 132.568 364.646C135.368 359.446 134.968 349.046 131.768 343.846C126.168 334.646 112.035 331.179 103.101 336.779Z"/>
+            <path d="M344.035 336.912C341.635 338.379 338.569 341.445 337.102 343.845C333.902 349.045 333.502 359.445 336.302 364.645C339.235 369.979 373.235 403.179 377.502 404.912C387.235 408.512 397.102 404.912 403.369 395.712C406.702 390.779 407.369 383.579 405.102 377.312C403.369 373.045 370.169 339.045 364.835 336.112C359.635 333.312 349.235 333.712 344.035 336.912Z"/>
+            <path d="M225.368 385.712C222.968 387.046 219.368 390.112 217.368 392.646L213.768 397.312V426.379C213.768 458.246 213.901 458.779 222.968 465.446C228.168 469.312 240.701 469.312 245.901 465.446C254.834 458.779 255.101 457.979 255.501 428.246C256.034 397.579 255.234 394.379 246.834 387.979C241.101 383.579 231.634 382.512 225.368 385.712Z"/>
+            </svg>
+
+            <svg class="moon" width="469" height="469" viewBox="5 5 20 23" xmlns="http://www.w3.org/2000/svg">
+                <path d="M10.895 7.574c0 7.55 5.179 13.67 11.567 13.67 1.588 0 3.101-0.38 4.479-1.063-1.695 4.46-5.996 7.636-11.051 7.636-6.533 0-11.83-5.297-11.83-11.83 0-4.82 2.888-8.959 7.023-10.803-0.116 0.778-0.188 1.573-0.188 2.39z"></path>
+            </svg>
+        </button>
+
+        
+
+        <button id="cross-btn" class="nav-toggle-btn">
+            <svg id="cross" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+            <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z" />
+        </svg>
+        </button>
+    </div>
+</header>
+<div id="mobile-header">
+    <a href="/it" class="logo flex dark:hidden ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-light.svg" alt="" srcset=""></a>
+    <a href="/it" class="logo hidden dark:flex ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-dark.svg" alt="" srcset=""></a>
+
+    <button id="hamburger" class="nav-toggle-btn">
+        <svg viewBox="0 0 100 80" width="36" height="36">
+            <rect width="100" height="15"></rect>
+            <rect y="30" width="100" height="15"></rect>
+            <rect y="60" width="100" height="15"></rect>
+        </svg>
+    </button>
+</div>
+
+
+<script>
+// switch theme
+const sunIcon = document.querySelector('.sun');
+const moonIcon = document.querySelector('.moon');
+
+const userTheme = localStorage.getItem('theme');
+const systemTheme = window.matchMedia('(prefers-color-scheme: dark)').matches;
+const prismThemeLink = document.getElementById('prism-theme')
+
+function iconToggle () {
+    sunIcon.classList.toggle('hidden');
+    moonIcon.classList.toggle('hidden');
+}
+
+function themeCheck() {
+    if (userTheme === 'dark' || (!userTheme && systemTheme)) {
+        document.documentElement.classList.add('dark');
+        moonIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+    }
+    else{
+        sunIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+    }
+}
+themeCheck();
+
+function themeSwitch () {
+    if (document.documentElement.classList.contains('dark')) {
+        document.documentElement.classList.remove('dark');
+        localStorage.setItem('theme', 'light');
+        if(prismThemeLink){
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+        iconToggle();
+    } else {
+        document.documentElement.classList.add('dark');
+        localStorage.setItem('theme', 'dark');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+        iconToggle();
+    }
+}
+
+const nav = document.querySelector('header#navbar');
+
+window.addEventListener('click',(e)=>{
+    if(e.target.closest('.nav-link')){
+        if(e.target.closest('.nav-link').classList.contains('active')){
+            e.target.closest('.nav-link').classList.remove('active');
+        }
+        else{
+            document.querySelectorAll('.nav-link').forEach(el => el.classList.remove('active'))
+            e.target.closest('.nav-link').classList.add('active');
+        }
+    }
+    else if(e.target.closest('.nav-toggle-btn')){
+        if(nav.classList.contains('open')){
+            nav.classList.remove('open');
+            document.getElementById('mobile-header').classList.remove('nav-open');
+            document.documentElement.classList.remove('lock-scroll');
+        }
+        else{
+            document.documentElement.classList.add('lock-scroll');
+            document.getElementById('mobile-header').classList.add('nav-open');
+            nav.classList.add('open');
+        }
+    }
+    else if(e.target.closest('.theme-switch-btn')){
+        themeSwitch();
+    }
+});
+</script>
+
+        <html><head><link rel="stylesheet" href="/file-assets/index.css">
+<style>
+  /* Reset website .card styles that conflict with xftp bundle */
+  #app .card { cursor: default; }
+  #app .card,
+  #app .card > div { transition: unset; height: auto; }
+  #app .card > div > * { opacity: unset; max-height: unset; transform: unset; transition: unset; }
+
+  /* Align xftp bundle with website design */
+  #app { font-family: inherit; color: #3F484B; max-width: 600px; width: 100%; margin: 0 auto; padding: 0; }
+  #app .card { background: transparent; box-shadow: none; padding: 0; border-radius: 0; }
+  #app .card > h1 { display: none; }
+  .dark #app h1 { color: #fff; }
+  #app .drop-zone { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; }
+  #app .drop-zone.drag-over { border-color: #0053D0; background: #DBEEFF; }
+  #app .btn { background: #0053D0; border-radius: 34px; padding: 12px 32px; font-size: .9rem; font-weight: 600; }
+  #app .btn:hover { background: #1661D1; }
+  #app .btn-secondary { background: #6b7280; border-radius: 34px; }
+  #app .hint { color: #6b7280; }
+  #app .link-row input { border-radius: 8px; border-color: #c5d3de; }
+  #app .security-note { background: #ffffff; border-radius: 12px; color: #3F484B; }
+  #app .security-note a { color: #0197FF; }
+  #app .success { color: #0053D0; }
+
+  .dark #app { color: #e5e7eb; }
+  .dark #app .card { background: transparent; box-shadow: none; }
+  .dark #app .drop-zone { border-color: #374151; }
+  .dark #app .drop-zone.drag-over { border-color: #70F0F9; background: #1B325C; }
+  .dark #app .btn { background: #70F0F9; color: #000832; }
+  .dark #app .btn:hover { background: #66D9E2; }
+  .dark #app .link-row input { border-color: #374151; background: #071C46; color: #e5e7eb; }
+  .dark #app .security-note { background: #0B2A59; color: #d1d5db; }
+  .dark #app .security-note a { color: #70F0F9; }
+  .dark #app .success { color: #70F0F9; }
+
+  #app #upload-error { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; text-align: center; }
+  .dark #app #upload-error { border-color: #374151; }
+
+  #app .stage > .btn { margin-top: 20px; }
+  #app .security-note { margin-top: 20px; }
+  #app .drop-zone .btn { margin: 10px 0 16px; }
+
+  /* Protocol overlay: image fixed, text scrolls natively */
+  /* Push popup below navbar at all widths */
+  #xftp-protocol { padding-top: 70px; }
+  #xftp-protocol .overlay-card {
+    display: flex;
+    flex-direction: column;
+    position: relative;
+    overflow: hidden;
+  }
+  @media (min-width: 768px) {
+    #xftp-protocol .overlay-card { max-height: min(660px, 100%); }
+  }
+  #xftp-protocol .overlay-card > h1 {
+    flex-shrink: 0;
+    padding-bottom: 16px;
+    margin-bottom: 0;
+    z-index: 1;
+  }
+  @media (min-width: 1024px) and (max-height: 750px) {
+    #xftp-protocol .overlay-card > h1 {
+      font-size: 22px;
+    }
+  }
+  /* .flex is the full-width scroll container */
+  #xftp-protocol .overlay-card > .flex {
+    flex: 1;
+    min-height: 0;
+    overflow-y: auto;
+    scrollbar-width: thin;
+    scrollbar-color: #c5d3de transparent;
+  }
+  .dark #xftp-protocol .overlay-card > .flex {
+    scrollbar-color: #374151 transparent;
+  }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar { width: 6px; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-track { background: transparent; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #c5d3de; border-radius: 3px; }
+  .dark #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #374151; }
+  /* Desktop: text stays left, image fixed on right */
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card > .flex > div:first-child {
+      max-width: 50%;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child {
+      position: absolute;
+      right: 56px;
+      top: 0;
+      bottom: 0;
+      left: 55%;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      pointer-events: none;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child > div {
+      height: 100%;
+      padding: 40px 0;
+      box-sizing: border-box;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child img {
+      height: 100%;
+    }
+  }
+  #xftp-protocol .close-overlay-btn {
+    position: absolute;
+    top: 24px;
+    right: 24px;
+    cursor: pointer;
+    z-index: 3;
+    fill: #606C71;
+  }
+  .dark #xftp-protocol .close-overlay-btn { fill: #e5e7eb; }
+  /* Scroll fade: gradient over text area only, hidden at bottom */
+  #xftp-protocol .overlay-card::after {
+    content: '';
+    position: absolute;
+    bottom: 40px;
+    left: 24px;
+    right: 24px;
+    height: 48px;
+    background: linear-gradient(rgba(255,255,255,0), #fff);
+    pointer-events: none;
+    z-index: 2;
+    transition: opacity 0.2s;
+  }
+  .dark #xftp-protocol .overlay-card::after {
+    background: linear-gradient(rgba(7,28,70,0), #071C46);
+  }
+  @media (min-width: 640px) {
+    #xftp-protocol .overlay-card::after { bottom: 56px; left: 56px; right: 56px; }
+  }
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card::after { right: 55%; }
+  }
+  #xftp-protocol.scrolled-bottom .overlay-card::after { opacity: 0; }
+  #xftp-protocol .overlay-card.flex,
+  #xftp-protocol.flex .overlay-card { animation: overlaySlideIn 0.25s ease-out; }
+  @keyframes overlaySlideIn {
+    from { opacity: 0; transform: scale(0.95) translateY(10px); }
+    to { opacity: 1; transform: scale(1) translateY(0); }
+  }
+  #xftp-protocol.overlay-closing { animation: overlayFadeOut 0.2s ease-in forwards; }
+  #xftp-protocol.overlay-closing .overlay-card { animation: overlaySlideOut 0.2s ease-in forwards; }
+  @keyframes overlayFadeOut {
+    from { opacity: 1; }
+    to { opacity: 0; }
+  }
+  @keyframes overlaySlideOut {
+    from { opacity: 1; transform: scale(1) translateY(0); }
+    to { opacity: 0; transform: scale(0.95) translateY(10px); }
+  }
+
+  .file-proto-link {
+    font-size: 1.25rem;
+    font-weight: 600;
+    background: linear-gradient(90deg, #001aa7 0%, #0095e7 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+    text-decoration: none;
+  }
+  .dark .file-proto-link {
+    background: linear-gradient(90deg, #019bfe 0%, #64fdff 58%, #c8feff 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+  }
+
+</style>
+
+</head><body><section class="bg-secondary-bg-light dark:bg-primary-bg-dark py-10 mt-[66px] px-5">
+  <div class="container flex flex-col items-center mx-auto">
+    <noscript>
+      <p class="text-center text-grey-black dark:text-white py-10">
+        JavaScript is required for file transfer.
+      </p>
+    </noscript>
+    <h1 class="text-[38px] text-center font-bold text-active-blue mb-8">SimpleX File Transfer</h1>
+    <div id="app" data-xftp-app="" data-no-hashchange="" class="w-full">
+      <div class="card">
+        <div class="drop-zone">
+          <p>Drag &amp; drop a file here</p>
+          <p class="hint">or</p>
+          <span class="btn">Choose file</span>
+          <p class="hint">Max 100 MB - <a href="#join-simplex">SimpleX Chat app</a> supports files up to 1 GB</p>
+        </div>
+      </div>
+    </div>
+    <template id="dl-placeholder">
+      <div class="card">
+        <h1>SimpleX File Transfer</h1>
+        <div class="stage">
+          <p>File available</p>
+          <button class="btn">Download</button>
+          <div class="security-note">
+            <p>This file is encrypted - data routers never see file contents, name or size.</p>
+            <p>The encryption key is in the link’s hash fragment - it is never sent to any server.</p>
+            <p>For better security, use <a href="https://simplex.chat/download">SimpleX Chat</a> app.</p>
+          </div>
+        </div>
+      </div>
+    </template>
+    <script>if(location.hash.length>50){var a=document.getElementById("app"),t=document.getElementById("dl-placeholder");if(a&&t)a.replaceChildren(t.content.cloneNode(true))}</script>
+    <script type="module" src="/file-assets/index.js"></script>
+
+    <p class="text-base text-center text-grey-black dark:text-white mt-10 max-w-[600px]">Send files securely with <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span> — no accounts, no tracking.</p>
+    <a href="javascript:void(0)" data-show-overlay="xftp-protocol" class="open-overlay-btn file-proto-link mt-3 block text-center">Learn more about XFTP protocol</a>
+  </div>
+</section>
+
+<section class="bg-primary-bg-light dark:bg-secondary-bg-dark py-[90px] px-5">
+  <div class="container flex flex-col items-center mx-auto text-center">
+    <h2 class="text-[35px] leading-[45px] md:text-[45px] md:leading-[55px] text-grey-black dark:text-white font-bold mb-5">
+      Get SimpleX Chat — the most secure &amp; private messenger
+    </h2>
+    <p class="text-base text-grey-black dark:text-white mb-14 max-w-[600px]">
+      The file transfer you just used uses the same data routing protocol as SimpleX Chat. The app has end-to-end encrypted messaging, voice and video calls, groups, and sending files. No account. No phone. No email. No user profile IDs.
+    </p>
+    <div class="flex items-center justify-center gap-4 flex-wrap">
+      <a href="https://apps.apple.com/us/app/simplex-chat/id1605771084" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apple_store.svg"></a>
+      <a href="https://play.google.com/store/apps/details?id=chat.simplex.app" target="_blank"><img class="h-[40px] w-auto" src="/img/new/google_play.svg"></a>
+      <a href="/it/fdroid"><img class="h-[40px] w-auto" src="/img/new/f_droid.svg"></a>
+      <a href="https://testflight.apple.com/join/DWuT2LQu" target="_blank"><img class="h-[40px] w-auto" src="/img/new/testflight.png"></a>
+      <a href="https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-aarch64.apk" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apk_icon.png"></a>
+    </div>
+  </div>
+</section>
+
+
+  
+    
+    <div id="xftp-protocol" data-scroll-to="" class="overlay hidden fixed top-0 left-0 bottom-0 right-0 before:absolute before:w-full before:h-full bg-transparent before:bg-secondary-bg-light dark:before:bg-primary-bg-dark before:opacity-90 items-center justify-center p-3 md:p-10 z-[10000]">
+        <div class="overlay-card w-full md:w-fit md:max-w-[1276px] bg-white dark:bg-card-bg-dark opacity-100 h-full md:h-fit md:max-h-[660px] z-[10001] rounded-md shadow-[0px_3px_12px_rgba(0,0,0,0.2)] p-6 py-10 sm:p-14 overflow-auto scale-100">
+            <h1 class="text-3xl font-bold text-active-blue mb-6 ">XFTP protocol: the most secure file transfer</h1>
+            <div class="flex flex-col-reverse lg:flex-row gap-10 justify-between">
+                
+                    <div class="lg:max-w-[448px]">
+                        <div class="text-grey-black dark:text-white flex flex-col gap-6 text-base">
+                            <div>
+  <h3 class="font-bold text-lg mb-2">No account required</h3>
+  <p>Each file fragment uses a new random key. Data routers have no "users" or "files" - they transfer encrypted file fragments of fixed sizes.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Triple-encrypted in your browser</h3>
+  <p>File encryption key is present only in the URL hash fragment - your browser never sends it to a server. There are 3 encryption layers: TLS transport, per-recipient encryption (unique ephemeral key per transfer), and file <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span>.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Independent data routers</h3>
+  <p>When file is split to fragments, it is sent via network routers operated by independent parties. No operator can see the actual file size or name. Even if a router is compromised, it can only see encrypted fragments of fixed size. File fragments are cached by network routers for approximately 48 hours.</p>
+</div>
+<p class="mt-4">
+  <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/xftp.md" target="_blank" rel="noopener" class="text-active-blue hover:underline">
+    Read the XFTP protocol specification →
+  </a>
+</p>
+
+                        </div>
+                    </div>
+                
+
+                
+                    <div class="max-w-[448px]">
+                        <div class="flex items-center justify-center">
+                            <img class="w-full max-w-[448px] min-w-[300px] dark:hidden" src="/img/new/xftp-protocol.svg" alt="">
+                            <img class="w-full max-w-[448px] min-w-[300px] hidden dark:block" src="/img/new/xftp-protocol-dark.svg" alt="">
+                        </div>
+                    </div>
+                
+            </div>
+
+            <svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+                <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z"></path>
+            </svg>
+        </div>
+    </div>
+
+
+
+<script>
+  window.__XFTP_I18N__ = {
+    "title": "SimpleX File Transfer",
+    "dropZone": "Drag & drop a file here",
+    "dropZoneHint": "or",
+    "chooseFile": "Choose file",
+    "maxSizeHint": "Max 100 MB - <a href=\"#join-simplex\">SimpleX Chat app</a> supports files up to 1 GB",
+    "encrypting": "Encrypting…",
+    "uploading": "Uploading…",
+    "cancel": "Cancel",
+    "fileUploaded": "File uploaded",
+    "copy": "Copy",
+    "copied": "Copied!",
+    "share": "Share",
+    "expiryHint": "Files are typically available for 48 hours.",
+    "securityNote1": "Your file was encrypted in the browser - data routers never see file contents, name or size.",
+    "securityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "securityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "retry": "Retry",
+    "downloading": "Downloading…",
+    "decrypting": "Decrypting…",
+    "downloadComplete": "Download complete",
+    "download": "Download",
+    "fileTooLarge": "File too large (%size%). Maximum is 100 MB. The <a href=\"#join-simplex\">SimpleX app</a> supports files up to 1 GB.",
+    "fileEmpty": "File is empty.",
+    "invalidLink": "Invalid or corrupted link.",
+    "initError": "Failed to initialize: %error%",
+    "fileAvailable": "File available (~%size%)",
+    "dlSecurityNote1": "This file is encrypted - data routers never see file contents, name or size.",
+    "dlSecurityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "dlSecurityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "workersRequired": "Web Workers required — update your browser"
+  }
+</script>
+
+<script>
+  // Intercept close for #xftp-protocol to add fade-out animation
+  document.getElementById('xftp-protocol')?.addEventListener('click', function(e) {
+    if (e.target.closest('.close-overlay-btn') || (e.target.closest('.overlay') && !e.target.closest('.overlay-card'))) {
+      e.stopPropagation();
+      var el = document.getElementById('xftp-protocol');
+      el.classList.add('overlay-closing');
+      el.addEventListener('animationend', function handler() {
+        el.removeEventListener('animationend', handler);
+        el.classList.remove('flex', 'overlay-closing');
+        el.classList.add('hidden');
+        document.body.classList.remove('lock-scroll');
+        history.replaceState(null, null, ' ');
+      });
+    }
+  }, true);
+
+  // Hide scroll fade gradient when text bottom is visible (works with column-reverse)
+  var scrollArea = document.querySelector('#xftp-protocol .overlay-card > .flex');
+  if (scrollArea) {
+    var textCol = scrollArea.querySelector(':scope > div:first-child > div');
+    function checkScrollBottom() {
+      if (!textCol) return;
+      var scrollRect = scrollArea.getBoundingClientRect();
+      if (scrollRect.height === 0) return; // not laid out yet
+      var textBottom = textCol.getBoundingClientRect().bottom;
+      document.getElementById('xftp-protocol').classList.toggle('scrolled-bottom', textBottom <= scrollRect.bottom + 10);
+    }
+    scrollArea.addEventListener('scroll', checkScrollBottom);
+    new MutationObserver(function() {
+      if (!document.getElementById('xftp-protocol').classList.contains('hidden')) {
+        requestAnimationFrame(checkScrollBottom);
+      }
+    }).observe(document.getElementById('xftp-protocol'), { attributes: true, attributeFilter: ['class'] });
+  }
+</script>
+
+<div id="address-portability" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Address portability</h1><div class="overlay-content"><p>Similarly to <a href="https://en.wikipedia.org/wiki/Local_number_portability">phone number portability</a> (the ability of the customer to transfer the service to another provider without changing the number), the address portability means the ability of a communication service customer to change the service provider without changing the service address. Many <a href="#federated-network">federated networks</a> support SRV records to provide address portability, but allowing service users to set up their own domains for the addresses is not as commonly supported by the available server and client software as for email.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="federated-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Federated network</h1><div class="overlay-content"><p>Federated network is provided by several entities that agree upon the standards and operate the network collectively. This allows the users to choose their provider, that will hold their account, their messaging history and contacts, and communicate with other providers' servers on behalf of the user. The examples are email, XMPP, Matrix and Mastodon.</p><p>The advantage of that design is that there is no single organization that all users depend on, and the standards are more difficult to change, unless it benefits all users. There are several disadvantages: 1) the innovation is slower, 2) each user account still depends on a single organization, and in most cases can't move to another provider without changing their network address – there is no <a href="#address-portability">address portability</a>, 3) the security and privacy are inevitably worse than with the centralized networks.</p><p><a href="https://en.wikipedia.org/wiki/Federation_(information_technology)">Federation on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="anonymous-credentials" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Anonymous credentials</h1><div class="overlay-content"><p>The credential that allows proving something, e.g. the right to access some resource, without identifying the user. This credential can either be generated by a trusted party or by the user themselves and provided together with the request to create the resource. The first approach creates some centralized dependency in most cases. The second approach does not require any trust - this is used in SimpleX network to authorize access to the messaging queues.</p><p><a href="https://en.wikipedia.org/wiki/Digital_credential">Digital credential on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="blockchain" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Blockchain</h1><div class="overlay-content"><p>In a wide sense, blockchain means a sequence of blocks of data, where each block contains a cryptographic hash of the previous block, thus providing integrity to the whole chain. Blockchains are used in many communication and information storage systems to provide integrity and immutability of the data. For example, BluRay disks use blockchain. SimpleX messaging queues also use blockchain - each message includes the hash of the previous message, to ensure the integrity – if any message is modified it will be detected by the recipient when the next message is received. Blockchains are a subset of <a href="#merkle-directed-acyclic-graph">Merkle directed acyclic graphs</a>.</p><p>In a more narrow sense, particularly in media, blockchain is used to refer specifically to distributed ledger, where each record also includes the hash of the previous record, but the blocks have to be agreed by the participating peers using some <a href="https://en.wikipedia.org/wiki/Consensus_(computer_science)">consensus protocol</a>.</p><p><a href="https://en.wikipedia.org/wiki/Blockchain">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="merkle-directed-acyclic-graph" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Merkle directed acyclic graph</h1><div class="overlay-content"><p>Also known as Merkle DAG, a data structure based on a general graph structure where node contains the cryptographic hashes of the previous nodes that point to it. Merkle trees are a subset of Merkle DAGs - in this case each leaf contains a cryptographic hash of the parent.</p><p>This structure by design allows to verify the integrity of the whole structure by computing its hashes and comparing with the hashes included in the nodes, in the same way as with <a href="#blockchain">blockchain</a>.</p><p>The motivation to use DAG in distributed environments instead of a simpler linear blockchain is to allow concurrent additions, when there is no requirement for a single order of added items. Merkle DAG is used, for example, in <a href="https://en.wikipedia.org/wiki/InterPlanetary_File_System">IPFS</a> and will be used in decentralized SimpleX groups.</p><p><a href="https://en.wikipedia.org/wiki/Merkle_tree">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="break-in-recovery" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Break-in recovery</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="double-ratchet-algorithm" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Double ratchet algorithm</h1><div class="overlay-content"><p>It is used by two parties to exchange <a href="#end-to-end-encryption">end-to-end encrypted</a> messages. The parties will use some <a href="#key-agreement-protocol">key agreement protocol</a> to agree on the initial shared secret key.</p><p>Double Ratchet algorithm provides <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>. It is <a href="https://signal.org/docs/specifications/doubleratchet">designed by Signal</a>, and used in SimpleX Chat and many other secure messengers. Most experts consider it the state-of-the-art encryption protocol in message encryption.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="centralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Centralized network</h1><div class="overlay-content"><p>Centralized networks are provided or controlled by a single entity. The examples are Threema, Signal, WhatsApp and Telegram. The advantage of that design is that the provider can innovate faster, and has a centralized approach to security. But the disadvantage is that the provider can change or discontinue the service, and leak, sell or disclose in some other way all users' data, including who they are connected with.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="content-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Content padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="decentralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Decentralized network</h1><div class="overlay-content"><p>Decentralized network is often used to mean "the network based on decentralized blockchain". In its original meaning, decentralized network means that there is no central authority or any other point of centralization in the network, other than network protocols specification. The advantage of decentralized networks is that they are resilient to censorship and to the provider going out of business. The disadvantage is that they are often slower to innovate, and the security may be worse than with the centralized network.</p><p>The examples of decentralized networks are email, web, DNS, XMPP, Matrix, BitTorrent, etc. All these examples have a shared global application-level address space. Cryptocurrency blockchains not only have a shared address space, but also a shared state, so they are more centralized than email. Tor network also has a shared global address space, but also a central authority. SimpleX network does not have a shared application-level address space (it relies on the shared transport-level addresses - SMP relay hostnames or IP addresses), and it does not have any central authority or any shared state.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="defense-in-depth" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Defense in depth</h1><div class="overlay-content"><p>Originally, it is a military strategy that seeks to delay rather than prevent the advance of an attacker, buying time and causing additional casualties by yielding space.</p><p>In information security, defense in depth represents the use of multiple computer security techniques to help mitigate the risk of one component of the defense being compromised or circumvented. An example could be anti-virus software installed on individual workstations when there is already virus protection on the firewalls and servers within the same environment.</p><p>SimpleX network applies defense in depth approach to security by having multiple layers for the communication security and privacy:</p><ul>
+<li>double ratchet algorithm for <a href="#end-to-end-encryption">end-to-end encryption</a> with <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>,</li>
+<li>additional layer of end-to-end encryption for each messaging queue and another encryption layer of encryption from the server to the recipient inside TLS to prevent correlation by ciphertext,</li>
+<li>TLS with only strong ciphers allowed,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-server connection via server offline certificate verification,</li>
+<li>mitigation of replay attacks via signing over transport channel binding,</li>
+<li>multiple layers of <a href="#message-padding">message padding</a> to reduce efficiency of traffic analysis,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-client out-of-band channel when sending the invitation,</li>
+<li>rotation of delivery queues to reduce efficiency of traffic analysis,</li>
+<li>etc.</li>
+</ul><p><a href="https://en.wikipedia.org/wiki/Defence_in_depth">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="end-to-end-encryption" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">End-to-end encryption</h1><div class="overlay-content"><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><p>End-to-end encryption requires agreeing cryptographic keys between the sender and the recipient in a way that no eavesdroppers can access the agreed keys. See <a href="#key-agreement-protocol">key agreement protocol</a>. This key exchange can be compromised via <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>, particularly if key exchange happens via the same communication provider and no out-of-band channel is used to verify key exchange.</p><p><a href="https://en.wikipedia.org/wiki/End-to-end_encryption">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-compromise-security" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-compromise security</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="man-in-the-middle-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Man-in-the-middle attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="message-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Message padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="key-agreement-protocol" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key agreement protocol</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="tooltip-end-to-end-encryption" class="glossary-tooltip"><div class="tooltip-content"><h4 class="tooltip-title">End-to-end encryption</h4><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><button class="read-more-btn open-overlay-btn" data-show-overlay="end-to-end-encryption">Read more</button></div></div><div id="key-exchange" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key exchange</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="mitm-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">MITM attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="non-repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Non-repudiation</h1><div class="overlay-content">Non-repudiation</div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="onion-routing" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Onion routing</h1><div class="overlay-content"><p>A technique for anonymous communication over a computer network that uses multiple layers of message encryption, analogous to the layers of an onion. The encrypted data is transmitted through a series of network nodes called "onion routers," each of which "peels" away a single layer, revealing the data's next destination. The sender remains anonymous because each intermediary knows only the location of the immediately preceding and following nodes.</p><p>The most widely used onion network is <a href="https://en.wikipedia.org/wiki/Tor_(network)">Tor</a>.</p><p>Some elements of SimpleX network use similar ideas in their design - different addresses for the same resource used by different parties, and additional encryption layers. Currently though, SimpleX messaging protocol does not protect sender network address, as the relay server is chosen by the recipient. The delivery relays chosen by sender that are planned for the future would make SimpleX design closer to onion routing.</p><p><a href="https://en.wikipedia.org/wiki/Onion_routing">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="overlay-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Overlay network</h1><div class="overlay-content"><p>Nodes in the overlay network can be thought of as being connected by virtual or logical links, each of which corresponds to a path, perhaps through many physical links, in the underlying network. Tor, for example, is an overlay network on top of IP network, which in its turn is also an overlay network over some underlying physical network.</p><p>SimpleX Clients also form a network using SMP relays and IP or some other overlay network (e.g., Tor), to communicate with each other. SMP relays, on another hand, do not form a network.</p><p><a href="https://en.wikipedia.org/wiki/Overlay_network">Wikipedia</a></p><h1>Non-repudiation</h1><p>The property of the cryptographic or communication system that allows the recipient of the message to prove to any third party that the sender identified by some cryptographic key sent the message. It is the opposite to <a href="#repudiation">repudiation</a>. While in some context non-repudiation may be desirable (e.g., for contractually binding messages), in the context of private communications it may be undesirable.</p><p><a href="https://en.wikipedia.org/wiki/Non-repudiation">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Repudiation</h1><div class="overlay-content"><p>The property of the cryptographic or communication system that allows the sender of the message to plausibly deny having sent the message, because while the recipient can verify that the message was sent by the sender, they cannot prove it to any third party - the recipient has a technical ability to forge the same encrypted message. This is an important quality of private communications, as it allows to have the conversation that can later be denied, similarly to having a private face-to-face conversation.</p><p>See also <a href="#non-repudiation">non-repudiation</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="pairwise-pseudonymous-identifier" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Pairwise pseudonymous identifier</h1><div class="overlay-content"><p>Generalizing <a href="https://csrc.nist.gov/glossary/term/pairwise_pseudonymous_identifier">the definition</a> from NIST Digital Identity Guidelines, it is an opaque unguessable identifier generated by a service used to access a resource by only one party.</p><p>In the context of SimpleX network, these are the identifiers generated by SMP relays to access anonymous messaging queues, with a separate identifier (and access credential) for each accessing party: recipient, sender and and optional notifications subscriber. The same approach is used by XFTP relays to access file chunks, with separate identifiers (and access credentials) for sender and each recipient.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Peer-to-peer</h1><div class="overlay-content"><p>Peer-to-peer (P2P) is the network architecture when participants have equal rights and communicate directly via a general purpose transport or overlay network. Unlike client-server architecture, all peers in a P2P network both provide and consume the resources. In the context of messaging, P2P architecture usually means that the messages are sent between peers, without user accounts or messages being stored on any servers. Examples are Tox, Briar, Cwtch and many others.</p><p>The advantage is that the participants do not depend on any servers. There are <a href="./SIMPLEX.md#comparison-with-p2p9-messaging-protocols">multiple downsides</a> to that architecture, such as no asynchronous message delivery, the need for network-wide peer addresses, possibility of network-wide attacks, that are usually mitigated only by using a centralized authority. These disadvantages are avoided with <a href="#proxied-peer-to-peer">proxied P2P</a> architecture.</p><p><a href="https://en.wikipedia.org/wiki/Peer-to-peer">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="proxied-peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Proxied peer-to-peer</h1><div class="overlay-content"><p>Network topology of the communication system when peers communicate via proxies that do not form the network themselves. Such design is used in Pond, that has a fixed home server for each user, and in SimpleX, that uses multiple relays providing temporary connections.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="perfect-forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Perfect forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-cryptography" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum cryptography</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-hybrid-crypto" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum hybrid crypto</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="recovery-from-compromise" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Recovery from compromise</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="user-identity" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">User identity</h1><div class="overlay-content"><p>In a communication system it refers to anything that uniquely identifies the users to the network. Depending on the communication network, it can be a phone number, email address, username, public key or a random opaque identifier. Most messaging networks rely on some form of user identity. SimpleX appears to be the only messaging network that does not rely on any kind of user identity - see <a href="https://en.wikipedia.org/wiki/Comparison_of_instant_messaging_protocols">this comparison</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div></body></html>
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+                            </svg>
+                        </a>
+                        <a href="https://twitter.com/simplexchat" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 41 41" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M20.4575 40.9268C31.5032 40.9268 40.4575 31.9725 40.4575 20.9268C40.4575 9.88106 31.5032 0.926758 20.4575 0.926758C9.41182 0.926758 0.45752 9.88106 0.45752 20.9268C0.45752 31.9725 9.41182 40.9268 20.4575 40.9268ZM29.916 16.7766C29.916 23.1157 25.014 30.4265 16.0519 30.4265V30.423C13.4038 30.4265 10.8115 29.6795 8.58252 28.2719C8.96846 28.3174 9.35558 28.3397 9.74271 28.3409C11.9372 28.3432 14.0688 27.6182 15.7942 26.283C13.7101 26.2444 11.8802 24.9055 11.2425 22.9507C11.9716 23.0898 12.7245 23.0619 13.4418 22.869C11.1689 22.4165 9.53371 20.4504 9.53252 18.1671V18.1062C10.2106 18.478 10.9694 18.6835 11.7448 18.7057C9.60377 17.2981 8.94233 14.4948 10.2355 12.3026C12.7103 15.2992 16.3606 17.1207 20.2782 17.3147C19.8851 15.6487 20.4231 13.902 21.6878 12.7306C23.6507 10.9137 26.737 11.0073 28.5824 12.9387C29.6737 12.7271 30.7199 12.3327 31.677 11.7738C31.3125 12.8857 30.5513 13.828 29.5348 14.4277C30.5002
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+                            </svg>
+                        </a>
+                        <a href="https://www.linkedin.com/company/simplex-chat/" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 41 41" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M20.0408 0.926758C8.9951 0.926758 0.0407715 9.88109 0.0407715 20.9268C0.0407715 31.9724 8.9951 40.9268 20.0408 40.9268C31.0864 40.9268 40.0408 31.9724 40.0408 20.9268C40.0408 9.88109 31.0864 0.926758 20.0408 0.926758ZM9.6421 17.4916H14.1745V31.1098H9.6421V17.4916ZM14.4731 13.279C14.4437 11.9438 13.4889 10.9268 11.9383 10.9268C10.3878 10.9268 9.3741 11.9438 9.3741 13.279C9.3741 14.5866 10.3579 15.6328 11.8794 15.6328H11.9084C13.4889 15.6328 14.4731 14.5866 14.4731 13.279ZM25.3017 17.1718C28.2843 17.1718 30.5203 19.1187 30.5203 23.3015L30.5201 31.1098H25.9879V23.824C25.9879 21.994 25.3319 20.7453 23.6912 20.7453C22.439 20.7453 21.6932 21.5871 21.3656 22.4003C21.2458 22.6916 21.2164 23.0976 21.2164 23.5046V31.1101H16.6834C16.6834 31.1101 16.7431 18.7698 16.6834 17.492H21.2164V19.4208C21.8179 18.4936 22.8953 17.1718 25.3017 17.1718Z" />
+                            </svg>
+                        </a>
+                        <a href="https://simplex.chat/feed.rss" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 512 512" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M256 512C397.385 512 512 397.385 512 256C512 114.615 397.385 0 256 0C114.615 0 0 114.615 0 256C0 397.385 114.615 512 256 512ZM132.791 157.572C215.586 161.137 279.503 196.841 323.612 267.517C344.138 302.436 354.186 339.959 354.57 380.122H406.814C409.639 231.301 280.977 103.1 132.791 106.05V157.572ZM309.994 343.843C311.593 356.035 313.096 367.877 314.65 380.116H261.161C260.496 344.968 248.303 314.452 223.472 289.485C198.613 264.491 168.097 252.282 132.755 251.38V199.743C198.318 196.346 288.694 244.344 309.994 343.843ZM132.766 336.706C129.293 354.261 137.796 370.323 154.848 378.004L155.461 378.242C156.267 378.558 156.912 378.81 157.577 378.985C173.012 383.066 186.298 379.318 196.604 367.168C206.463 355.544 208.397 342.145 201.87 328.354C195.205 314.271 183.419 307.215 167.834 307.356C151.188 307.509 135.971 320.504 132.766 336.706Z" />
+                            </svg>
+                        </a>
+                    </div>
+                </div>
+            </article>
+        </div>
+        <a href="#" class="text-grey-black dark:text-white text-[16px] text-center lg:ltr:text-left lg:rtl:text-right font-medium leading-[28px] tracking-[0.01em] block mt-[60px]">© 2020-2025 SimpleX Chat | Progetto Open-Source</a>
+    </div>
+</section>
+
+
+        <script src="/js/swiper-bundle.min.js"></script>
+        <script src="/js/script.js"></script>
+    </body>
+</html>
diff --git a/it/index.html b/it/index.html
index fd68a7e896..8be2dcdd4e 100644
--- a/it/index.html
+++ b/it/index.html
@@ -153,6 +153,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/it/invitation/index.html b/it/invitation/index.html
index e118d15912..e1fa60f50a 100644
--- a/it/invitation/index.html
+++ b/it/invitation/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/it/messaging/index.html b/it/messaging/index.html
index 54e6bd31b3..a44e88612b 100644
--- a/it/messaging/index.html
+++ b/it/messaging/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/it/old/index.html b/it/old/index.html
index 341a498c73..396b132e5a 100644
--- a/it/old/index.html
+++ b/it/old/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/it/why/index.html b/it/why/index.html
index 415a82a449..0f03226ddb 100644
--- a/it/why/index.html
+++ b/it/why/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/ja/contact/index.html b/ja/contact/index.html
index ae0ffdd8a3..7d6a6afc30 100644
--- a/ja/contact/index.html
+++ b/ja/contact/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/ja/fdroid/index.html b/ja/fdroid/index.html
index 63288441b0..8ca3e709cb 100644
--- a/ja/fdroid/index.html
+++ b/ja/fdroid/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/ja/file/index.html b/ja/file/index.html
new file mode 100644
index 0000000000..1a83f3f8b3
--- /dev/null
+++ b/ja/file/index.html
@@ -0,0 +1,888 @@
+<!DOCTYPE html>
+<html lang="ja"
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+            dir="ltr"
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    >
+    <head>
+        <meta charset="UTF-8">
+        <meta http-equiv="X-UA-Compatible" content="IE=edge">
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        <title>SimpleX File Transfer</title>
+        <meta name="description" content="Send files securely with end-to-end encryption"/>
+        <meta name="Content-Type" content="text/html;charset=utf-8"/>
+        
+        <meta http-equiv="onion-location" content="http://isdb4l77sjqoy2qq7ipum6x3at6hyn3jmxfx4zdhc72ufbmuq4ilwkqd.onion/" />
+        <meta property="og:url" content="https://simplex.chat/" />
+        
+        <meta property="og:type" content="website"/>
+        <meta property="og:title" content="SimpleX File Transfer"/>
+        <meta property="og:description" content="Send files securely with end-to-end encryption"/>
+        <meta property="og:image" content="https://simplex.chat/img/share_simplex.jpg"/>
+        <meta name="twitter:card" content="summary"/>
+        <link rel="icon" type="image/png" sizes="96x96" href="/img/favicon.ico"/>
+
+        <link rel="stylesheet" href="/css/swiper-bundle.min.css">
+        <link rel="stylesheet" href="/css/blog.css">
+        <link href="/css/tailwind.css" rel="stylesheet"/>
+        <link rel="stylesheet" href="/css/style.css">
+        <link rel="stylesheet" href="/css/design3-nav.css">
+        <script async defer src="https://buttons.github.io/buttons.js"></script>
+        <script src="/js/flag-anchor.js"></script>
+        
+    </head>
+    <body class="bg-[#F3FAFF] dark:bg-[#000832]">
+        
+
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+        
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+
+<header id="navbar">
+    <a href="/ja" class="logo logo-light ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-light.png" alt="logo"></a>
+    <a href="/ja" class="logo logo-dark ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-dark.png" alt="logo"></a>
+
+    <nav id="menu">
+        <ul>
+            <li class="nav-link ">
+                <a href="/ja">
+                    <span class="nav-link-text">ホーム</span>
+                </a>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/directory/">
+                    <span class="nav-link-text">ディレクトリ</span>
+                </a>
+            </li>
+
+            
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">ガイド</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    
+                        <li><a href="/docs/guide/readme.html" class="">クイックスタート</a></li>
+                    
+                        <li><a href="/docs/guide/send-messages.html" class="">メッセージを送る</a></li>
+                    
+                        <li><a href="/docs/guide/secret-groups.html" class="">シークレットグループ</a></li>
+                    
+                        <li><a href="/docs/guide/chat-profiles.html" class="">チャットプロフィール</a></li>
+                    
+                        <li><a href="/docs/guide/managing-data.html" class="">データ管理</a></li>
+                    
+                        <li><a href="/docs/guide/audio-video-calls.html" class="">音声とビデオ通話</a></li>
+                    
+                        <li><a href="/docs/guide/privacy-security.html" class="">プライバシーとセキュリティ</a></li>
+                    
+                        <li><a href="/docs/guide/app-settings.html" class="">アプリ設定</a></li>
+                    
+                        <li><a href="/docs/guide/making-connections.html" class="">コネクションを作る</a></li>
+                    
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">リファレンス</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md"
+                        target="_blank">Whitepaper
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/privacy">プライバシーポリシー</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/simplex-messaging.md"
+                        target="_blank">SMPプロトコル
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/protocol/simplex-chat.html">チャットプロトコル</a></li>
+                    <li><a href="/docs/glossary.html">用語集</a></li>
+
+                    <hr>
+
+                    
+                        <li><a href="/docs/simplex.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleXネットワーク</a></li>
+                    
+                        <li><a href="/docs/business.html" class=" lg:px-[20px] inline-block whitespace-nowrap">ビジネス向けSimpleX</a></li>
+                    
+                        <li><a href="/docs/directory.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX ディレクトリ サービス</a></li>
+                    
+                        <li><a href="/docs/android.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Android ファイルへのアクセス</a></li>
+                    
+                        <li><a href="/docs/server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">ホストSMPサーバー</a></li>
+                    
+                        <li><a href="/docs/xftp-server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">ホストXFTPサーバー</a></li>
+                    
+                        <li><a href="/docs/webrtc.html" class=" lg:px-[20px] inline-block whitespace-nowrap">WebRTC サーバー</a></li>
+                    
+                        <li><a href="/downloads/" class=" lg:px-[20px] inline-block whitespace-nowrap">ダウンロード</a></li>
+                    
+                        <li><a href="/reproduce/" class=" lg:px-[20px] inline-block whitespace-nowrap">Verify & reproduce builds</a></li>
+                    
+                        <li><a href="/transparency/" class=" lg:px-[20px] inline-block whitespace-nowrap">透明性</a></li>
+                    
+                        <li><a href="/security/" class=" lg:px-[20px] inline-block whitespace-nowrap">セキュリティ</a></li>
+                    
+                        <li><a href="/faq/" class=" lg:px-[20px] inline-block whitespace-nowrap">よくある質問</a></li>
+                    
+
+                    <hr>
+
+                    <li><a href="/docs/translations.html"
+                    >SimpleX チャットを翻訳する
+                    </a></li>
+                    <li><a href="/docs/android.html"
+                    >Android ファイルへのアクセス
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/blob/stable/apps/simplex-bot-advanced/Main.hs"
+                        target="_blank">チャットボットの例
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/tree/stable/packages/simplex-chat-client/typescript"
+                        target="_blank">TypeScript SDK
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/cli.html">ターミナル CLI</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq"
+                        target="_blank">SimpleXMQ
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/blog">
+                    <span class="nav-link-text">ブログ</span>
+                </a>
+            </li>
+        </ul>
+    </nav>
+
+    <div class="right-links">
+        
+            <a class="box-btn token md:hidden" href="/donate">
+                寄付
+            </a>
+        
+        <button href="#" class="theme-switch-btn">
+            <svg class="sun" width="469" height="469" viewBox="0 0 469 469" fill="none" xmlns="http://www.w3.org/2000/svg">
+            <path d="M225.768 1.44594C220.301 3.84594 214.701 10.6459 213.768 15.9793C213.234 18.3793 213.101 31.7126 213.368 45.7126L213.768 71.1793L217.634 76.1126C226.701 88.1126 242.968 87.5793 252.301 75.0459C254.968 71.5793 255.101 69.5793 255.101 42.2459C255.101 14.9126 254.968 12.9126 252.301 9.44594C250.834 7.44594 248.034 4.51261 246.168 3.17928C241.768 -0.154057 231.101 -1.08739 225.768 1.44594Z"/>
+            <path d="M72.9687 65.3128C63.7687 71.5794 60.1687 81.4461 63.7687 91.1794C65.502 95.4461 98.702 129.446 104.035 132.379C106.035 133.446 110.569 134.246 114.035 134.246C126.035 134.246 134.435 125.846 134.435 113.846C134.435 110.379 133.635 105.846 132.569 103.846C129.635 98.5128 95.6353 65.3128 91.3687 63.5794C85.102 61.3128 77.902 61.9794 72.9687 65.3128Z"/>
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+            <path d="M211.635 108.246C185.635 113.179 163.502 125.046 144.302 144.112C117.902 170.512 104.968 203.579 106.835 240.246C109.768 297.712 149.102 344.912 205.902 359.179C218.568 362.379 250.302 362.379 262.968 359.179C310.435 347.312 345.768 312.646 358.702 265.046C362.435 251.446 362.835 219.446 359.368 205.712C347.368 158.112 312.302 122.379 265.235 110.112C251.768 106.512 225.502 105.579 211.635 108.246Z"/>
+            <path d="M12.4349 214.779C-0.498477 220.379 -4.09848 237.579 5.23486 248.246C11.2349 255.046 15.6349 255.846 45.3682 255.313C74.0349 254.913 75.1015 254.646 81.6349 245.713C85.9015 239.979 85.5015 228.113 80.8349 221.979C74.4349 213.713 71.2349 212.913 42.1682 212.913C23.7682 213.046 15.2349 213.579 12.4349 214.779Z"/>
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+            <path d="M103.101 336.779C96.7013 340.779 65.368 373.179 63.768 377.313C57.368 394.513 74.168 411.313 91.368 404.913C95.6347 403.179 129.635 369.979 132.568 364.646C135.368 359.446 134.968 349.046 131.768 343.846C126.168 334.646 112.035 331.179 103.101 336.779Z"/>
+            <path d="M344.035 336.912C341.635 338.379 338.569 341.445 337.102 343.845C333.902 349.045 333.502 359.445 336.302 364.645C339.235 369.979 373.235 403.179 377.502 404.912C387.235 408.512 397.102 404.912 403.369 395.712C406.702 390.779 407.369 383.579 405.102 377.312C403.369 373.045 370.169 339.045 364.835 336.112C359.635 333.312 349.235 333.712 344.035 336.912Z"/>
+            <path d="M225.368 385.712C222.968 387.046 219.368 390.112 217.368 392.646L213.768 397.312V426.379C213.768 458.246 213.901 458.779 222.968 465.446C228.168 469.312 240.701 469.312 245.901 465.446C254.834 458.779 255.101 457.979 255.501 428.246C256.034 397.579 255.234 394.379 246.834 387.979C241.101 383.579 231.634 382.512 225.368 385.712Z"/>
+            </svg>
+
+            <svg class="moon" width="469" height="469" viewBox="5 5 20 23" xmlns="http://www.w3.org/2000/svg">
+                <path d="M10.895 7.574c0 7.55 5.179 13.67 11.567 13.67 1.588 0 3.101-0.38 4.479-1.063-1.695 4.46-5.996 7.636-11.051 7.636-6.533 0-11.83-5.297-11.83-11.83 0-4.82 2.888-8.959 7.023-10.803-0.116 0.778-0.188 1.573-0.188 2.39z"></path>
+            </svg>
+        </button>
+
+        
+
+        <button id="cross-btn" class="nav-toggle-btn">
+            <svg id="cross" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+            <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z" />
+        </svg>
+        </button>
+    </div>
+</header>
+<div id="mobile-header">
+    <a href="/ja" class="logo flex dark:hidden ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-light.svg" alt="" srcset=""></a>
+    <a href="/ja" class="logo hidden dark:flex ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-dark.svg" alt="" srcset=""></a>
+
+    <button id="hamburger" class="nav-toggle-btn">
+        <svg viewBox="0 0 100 80" width="36" height="36">
+            <rect width="100" height="15"></rect>
+            <rect y="30" width="100" height="15"></rect>
+            <rect y="60" width="100" height="15"></rect>
+        </svg>
+    </button>
+</div>
+
+
+<script>
+// switch theme
+const sunIcon = document.querySelector('.sun');
+const moonIcon = document.querySelector('.moon');
+
+const userTheme = localStorage.getItem('theme');
+const systemTheme = window.matchMedia('(prefers-color-scheme: dark)').matches;
+const prismThemeLink = document.getElementById('prism-theme')
+
+function iconToggle () {
+    sunIcon.classList.toggle('hidden');
+    moonIcon.classList.toggle('hidden');
+}
+
+function themeCheck() {
+    if (userTheme === 'dark' || (!userTheme && systemTheme)) {
+        document.documentElement.classList.add('dark');
+        moonIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+    }
+    else{
+        sunIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+    }
+}
+themeCheck();
+
+function themeSwitch () {
+    if (document.documentElement.classList.contains('dark')) {
+        document.documentElement.classList.remove('dark');
+        localStorage.setItem('theme', 'light');
+        if(prismThemeLink){
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+        iconToggle();
+    } else {
+        document.documentElement.classList.add('dark');
+        localStorage.setItem('theme', 'dark');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+        iconToggle();
+    }
+}
+
+const nav = document.querySelector('header#navbar');
+
+window.addEventListener('click',(e)=>{
+    if(e.target.closest('.nav-link')){
+        if(e.target.closest('.nav-link').classList.contains('active')){
+            e.target.closest('.nav-link').classList.remove('active');
+        }
+        else{
+            document.querySelectorAll('.nav-link').forEach(el => el.classList.remove('active'))
+            e.target.closest('.nav-link').classList.add('active');
+        }
+    }
+    else if(e.target.closest('.nav-toggle-btn')){
+        if(nav.classList.contains('open')){
+            nav.classList.remove('open');
+            document.getElementById('mobile-header').classList.remove('nav-open');
+            document.documentElement.classList.remove('lock-scroll');
+        }
+        else{
+            document.documentElement.classList.add('lock-scroll');
+            document.getElementById('mobile-header').classList.add('nav-open');
+            nav.classList.add('open');
+        }
+    }
+    else if(e.target.closest('.theme-switch-btn')){
+        themeSwitch();
+    }
+});
+</script>
+
+        <html><head><link rel="stylesheet" href="/file-assets/index.css">
+<style>
+  /* Reset website .card styles that conflict with xftp bundle */
+  #app .card { cursor: default; }
+  #app .card,
+  #app .card > div { transition: unset; height: auto; }
+  #app .card > div > * { opacity: unset; max-height: unset; transform: unset; transition: unset; }
+
+  /* Align xftp bundle with website design */
+  #app { font-family: inherit; color: #3F484B; max-width: 600px; width: 100%; margin: 0 auto; padding: 0; }
+  #app .card { background: transparent; box-shadow: none; padding: 0; border-radius: 0; }
+  #app .card > h1 { display: none; }
+  .dark #app h1 { color: #fff; }
+  #app .drop-zone { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; }
+  #app .drop-zone.drag-over { border-color: #0053D0; background: #DBEEFF; }
+  #app .btn { background: #0053D0; border-radius: 34px; padding: 12px 32px; font-size: .9rem; font-weight: 600; }
+  #app .btn:hover { background: #1661D1; }
+  #app .btn-secondary { background: #6b7280; border-radius: 34px; }
+  #app .hint { color: #6b7280; }
+  #app .link-row input { border-radius: 8px; border-color: #c5d3de; }
+  #app .security-note { background: #ffffff; border-radius: 12px; color: #3F484B; }
+  #app .security-note a { color: #0197FF; }
+  #app .success { color: #0053D0; }
+
+  .dark #app { color: #e5e7eb; }
+  .dark #app .card { background: transparent; box-shadow: none; }
+  .dark #app .drop-zone { border-color: #374151; }
+  .dark #app .drop-zone.drag-over { border-color: #70F0F9; background: #1B325C; }
+  .dark #app .btn { background: #70F0F9; color: #000832; }
+  .dark #app .btn:hover { background: #66D9E2; }
+  .dark #app .link-row input { border-color: #374151; background: #071C46; color: #e5e7eb; }
+  .dark #app .security-note { background: #0B2A59; color: #d1d5db; }
+  .dark #app .security-note a { color: #70F0F9; }
+  .dark #app .success { color: #70F0F9; }
+
+  #app #upload-error { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; text-align: center; }
+  .dark #app #upload-error { border-color: #374151; }
+
+  #app .stage > .btn { margin-top: 20px; }
+  #app .security-note { margin-top: 20px; }
+  #app .drop-zone .btn { margin: 10px 0 16px; }
+
+  /* Protocol overlay: image fixed, text scrolls natively */
+  /* Push popup below navbar at all widths */
+  #xftp-protocol { padding-top: 70px; }
+  #xftp-protocol .overlay-card {
+    display: flex;
+    flex-direction: column;
+    position: relative;
+    overflow: hidden;
+  }
+  @media (min-width: 768px) {
+    #xftp-protocol .overlay-card { max-height: min(660px, 100%); }
+  }
+  #xftp-protocol .overlay-card > h1 {
+    flex-shrink: 0;
+    padding-bottom: 16px;
+    margin-bottom: 0;
+    z-index: 1;
+  }
+  @media (min-width: 1024px) and (max-height: 750px) {
+    #xftp-protocol .overlay-card > h1 {
+      font-size: 22px;
+    }
+  }
+  /* .flex is the full-width scroll container */
+  #xftp-protocol .overlay-card > .flex {
+    flex: 1;
+    min-height: 0;
+    overflow-y: auto;
+    scrollbar-width: thin;
+    scrollbar-color: #c5d3de transparent;
+  }
+  .dark #xftp-protocol .overlay-card > .flex {
+    scrollbar-color: #374151 transparent;
+  }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar { width: 6px; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-track { background: transparent; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #c5d3de; border-radius: 3px; }
+  .dark #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #374151; }
+  /* Desktop: text stays left, image fixed on right */
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card > .flex > div:first-child {
+      max-width: 50%;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child {
+      position: absolute;
+      right: 56px;
+      top: 0;
+      bottom: 0;
+      left: 55%;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      pointer-events: none;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child > div {
+      height: 100%;
+      padding: 40px 0;
+      box-sizing: border-box;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child img {
+      height: 100%;
+    }
+  }
+  #xftp-protocol .close-overlay-btn {
+    position: absolute;
+    top: 24px;
+    right: 24px;
+    cursor: pointer;
+    z-index: 3;
+    fill: #606C71;
+  }
+  .dark #xftp-protocol .close-overlay-btn { fill: #e5e7eb; }
+  /* Scroll fade: gradient over text area only, hidden at bottom */
+  #xftp-protocol .overlay-card::after {
+    content: '';
+    position: absolute;
+    bottom: 40px;
+    left: 24px;
+    right: 24px;
+    height: 48px;
+    background: linear-gradient(rgba(255,255,255,0), #fff);
+    pointer-events: none;
+    z-index: 2;
+    transition: opacity 0.2s;
+  }
+  .dark #xftp-protocol .overlay-card::after {
+    background: linear-gradient(rgba(7,28,70,0), #071C46);
+  }
+  @media (min-width: 640px) {
+    #xftp-protocol .overlay-card::after { bottom: 56px; left: 56px; right: 56px; }
+  }
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card::after { right: 55%; }
+  }
+  #xftp-protocol.scrolled-bottom .overlay-card::after { opacity: 0; }
+  #xftp-protocol .overlay-card.flex,
+  #xftp-protocol.flex .overlay-card { animation: overlaySlideIn 0.25s ease-out; }
+  @keyframes overlaySlideIn {
+    from { opacity: 0; transform: scale(0.95) translateY(10px); }
+    to { opacity: 1; transform: scale(1) translateY(0); }
+  }
+  #xftp-protocol.overlay-closing { animation: overlayFadeOut 0.2s ease-in forwards; }
+  #xftp-protocol.overlay-closing .overlay-card { animation: overlaySlideOut 0.2s ease-in forwards; }
+  @keyframes overlayFadeOut {
+    from { opacity: 1; }
+    to { opacity: 0; }
+  }
+  @keyframes overlaySlideOut {
+    from { opacity: 1; transform: scale(1) translateY(0); }
+    to { opacity: 0; transform: scale(0.95) translateY(10px); }
+  }
+
+  .file-proto-link {
+    font-size: 1.25rem;
+    font-weight: 600;
+    background: linear-gradient(90deg, #001aa7 0%, #0095e7 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+    text-decoration: none;
+  }
+  .dark .file-proto-link {
+    background: linear-gradient(90deg, #019bfe 0%, #64fdff 58%, #c8feff 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+  }
+
+</style>
+
+</head><body><section class="bg-secondary-bg-light dark:bg-primary-bg-dark py-10 mt-[66px] px-5">
+  <div class="container flex flex-col items-center mx-auto">
+    <noscript>
+      <p class="text-center text-grey-black dark:text-white py-10">
+        JavaScript is required for file transfer.
+      </p>
+    </noscript>
+    <h1 class="text-[38px] text-center font-bold text-active-blue mb-8">SimpleX File Transfer</h1>
+    <div id="app" data-xftp-app="" data-no-hashchange="" class="w-full">
+      <div class="card">
+        <div class="drop-zone">
+          <p>Drag &amp; drop a file here</p>
+          <p class="hint">or</p>
+          <span class="btn">Choose file</span>
+          <p class="hint">Max 100 MB - <a href="#join-simplex">SimpleX Chat app</a> supports files up to 1 GB</p>
+        </div>
+      </div>
+    </div>
+    <template id="dl-placeholder">
+      <div class="card">
+        <h1>SimpleX File Transfer</h1>
+        <div class="stage">
+          <p>File available</p>
+          <button class="btn">Download</button>
+          <div class="security-note">
+            <p>This file is encrypted - data routers never see file contents, name or size.</p>
+            <p>The encryption key is in the link’s hash fragment - it is never sent to any server.</p>
+            <p>For better security, use <a href="https://simplex.chat/download">SimpleX Chat</a> app.</p>
+          </div>
+        </div>
+      </div>
+    </template>
+    <script>if(location.hash.length>50){var a=document.getElementById("app"),t=document.getElementById("dl-placeholder");if(a&&t)a.replaceChildren(t.content.cloneNode(true))}</script>
+    <script type="module" src="/file-assets/index.js"></script>
+
+    <p class="text-base text-center text-grey-black dark:text-white mt-10 max-w-[600px]">Send files securely with <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span> — no accounts, no tracking.</p>
+    <a href="javascript:void(0)" data-show-overlay="xftp-protocol" class="open-overlay-btn file-proto-link mt-3 block text-center">Learn more about XFTP protocol</a>
+  </div>
+</section>
+
+<section class="bg-primary-bg-light dark:bg-secondary-bg-dark py-[90px] px-5">
+  <div class="container flex flex-col items-center mx-auto text-center">
+    <h2 class="text-[35px] leading-[45px] md:text-[45px] md:leading-[55px] text-grey-black dark:text-white font-bold mb-5">
+      Get SimpleX Chat — the most secure &amp; private messenger
+    </h2>
+    <p class="text-base text-grey-black dark:text-white mb-14 max-w-[600px]">
+      The file transfer you just used uses the same data routing protocol as SimpleX Chat. The app has end-to-end encrypted messaging, voice and video calls, groups, and sending files. No account. No phone. No email. No user profile IDs.
+    </p>
+    <div class="flex items-center justify-center gap-4 flex-wrap">
+      <a href="https://apps.apple.com/us/app/simplex-chat/id1605771084" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apple_store.svg"></a>
+      <a href="https://play.google.com/store/apps/details?id=chat.simplex.app" target="_blank"><img class="h-[40px] w-auto" src="/img/new/google_play.svg"></a>
+      <a href="/ja/fdroid"><img class="h-[40px] w-auto" src="/img/new/f_droid.svg"></a>
+      <a href="https://testflight.apple.com/join/DWuT2LQu" target="_blank"><img class="h-[40px] w-auto" src="/img/new/testflight.png"></a>
+      <a href="https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-aarch64.apk" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apk_icon.png"></a>
+    </div>
+  </div>
+</section>
+
+
+  
+    
+    <div id="xftp-protocol" data-scroll-to="" class="overlay hidden fixed top-0 left-0 bottom-0 right-0 before:absolute before:w-full before:h-full bg-transparent before:bg-secondary-bg-light dark:before:bg-primary-bg-dark before:opacity-90 items-center justify-center p-3 md:p-10 z-[10000]">
+        <div class="overlay-card w-full md:w-fit md:max-w-[1276px] bg-white dark:bg-card-bg-dark opacity-100 h-full md:h-fit md:max-h-[660px] z-[10001] rounded-md shadow-[0px_3px_12px_rgba(0,0,0,0.2)] p-6 py-10 sm:p-14 overflow-auto scale-100">
+            <h1 class="text-3xl font-bold text-active-blue mb-6 ">XFTP protocol: the most secure file transfer</h1>
+            <div class="flex flex-col-reverse lg:flex-row gap-10 justify-between">
+                
+                    <div class="lg:max-w-[448px]">
+                        <div class="text-grey-black dark:text-white flex flex-col gap-6 text-base">
+                            <div>
+  <h3 class="font-bold text-lg mb-2">No account required</h3>
+  <p>Each file fragment uses a new random key. Data routers have no "users" or "files" - they transfer encrypted file fragments of fixed sizes.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Triple-encrypted in your browser</h3>
+  <p>File encryption key is present only in the URL hash fragment - your browser never sends it to a server. There are 3 encryption layers: TLS transport, per-recipient encryption (unique ephemeral key per transfer), and file <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span>.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Independent data routers</h3>
+  <p>When file is split to fragments, it is sent via network routers operated by independent parties. No operator can see the actual file size or name. Even if a router is compromised, it can only see encrypted fragments of fixed size. File fragments are cached by network routers for approximately 48 hours.</p>
+</div>
+<p class="mt-4">
+  <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/xftp.md" target="_blank" rel="noopener" class="text-active-blue hover:underline">
+    Read the XFTP protocol specification →
+  </a>
+</p>
+
+                        </div>
+                    </div>
+                
+
+                
+                    <div class="max-w-[448px]">
+                        <div class="flex items-center justify-center">
+                            <img class="w-full max-w-[448px] min-w-[300px] dark:hidden" src="/img/new/xftp-protocol.svg" alt="">
+                            <img class="w-full max-w-[448px] min-w-[300px] hidden dark:block" src="/img/new/xftp-protocol-dark.svg" alt="">
+                        </div>
+                    </div>
+                
+            </div>
+
+            <svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+                <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z"></path>
+            </svg>
+        </div>
+    </div>
+
+
+
+<script>
+  window.__XFTP_I18N__ = {
+    "title": "SimpleX File Transfer",
+    "dropZone": "Drag & drop a file here",
+    "dropZoneHint": "or",
+    "chooseFile": "Choose file",
+    "maxSizeHint": "Max 100 MB - <a href=\"#join-simplex\">SimpleX Chat app</a> supports files up to 1 GB",
+    "encrypting": "Encrypting…",
+    "uploading": "Uploading…",
+    "cancel": "Cancel",
+    "fileUploaded": "File uploaded",
+    "copy": "Copy",
+    "copied": "Copied!",
+    "share": "Share",
+    "expiryHint": "Files are typically available for 48 hours.",
+    "securityNote1": "Your file was encrypted in the browser - data routers never see file contents, name or size.",
+    "securityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "securityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "retry": "Retry",
+    "downloading": "Downloading…",
+    "decrypting": "Decrypting…",
+    "downloadComplete": "Download complete",
+    "download": "Download",
+    "fileTooLarge": "File too large (%size%). Maximum is 100 MB. The <a href=\"#join-simplex\">SimpleX app</a> supports files up to 1 GB.",
+    "fileEmpty": "File is empty.",
+    "invalidLink": "Invalid or corrupted link.",
+    "initError": "Failed to initialize: %error%",
+    "fileAvailable": "File available (~%size%)",
+    "dlSecurityNote1": "This file is encrypted - data routers never see file contents, name or size.",
+    "dlSecurityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "dlSecurityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "workersRequired": "Web Workers required — update your browser"
+  }
+</script>
+
+<script>
+  // Intercept close for #xftp-protocol to add fade-out animation
+  document.getElementById('xftp-protocol')?.addEventListener('click', function(e) {
+    if (e.target.closest('.close-overlay-btn') || (e.target.closest('.overlay') && !e.target.closest('.overlay-card'))) {
+      e.stopPropagation();
+      var el = document.getElementById('xftp-protocol');
+      el.classList.add('overlay-closing');
+      el.addEventListener('animationend', function handler() {
+        el.removeEventListener('animationend', handler);
+        el.classList.remove('flex', 'overlay-closing');
+        el.classList.add('hidden');
+        document.body.classList.remove('lock-scroll');
+        history.replaceState(null, null, ' ');
+      });
+    }
+  }, true);
+
+  // Hide scroll fade gradient when text bottom is visible (works with column-reverse)
+  var scrollArea = document.querySelector('#xftp-protocol .overlay-card > .flex');
+  if (scrollArea) {
+    var textCol = scrollArea.querySelector(':scope > div:first-child > div');
+    function checkScrollBottom() {
+      if (!textCol) return;
+      var scrollRect = scrollArea.getBoundingClientRect();
+      if (scrollRect.height === 0) return; // not laid out yet
+      var textBottom = textCol.getBoundingClientRect().bottom;
+      document.getElementById('xftp-protocol').classList.toggle('scrolled-bottom', textBottom <= scrollRect.bottom + 10);
+    }
+    scrollArea.addEventListener('scroll', checkScrollBottom);
+    new MutationObserver(function() {
+      if (!document.getElementById('xftp-protocol').classList.contains('hidden')) {
+        requestAnimationFrame(checkScrollBottom);
+      }
+    }).observe(document.getElementById('xftp-protocol'), { attributes: true, attributeFilter: ['class'] });
+  }
+</script>
+
+<div id="address-portability" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Address portability</h1><div class="overlay-content"><p>Similarly to <a href="https://en.wikipedia.org/wiki/Local_number_portability">phone number portability</a> (the ability of the customer to transfer the service to another provider without changing the number), the address portability means the ability of a communication service customer to change the service provider without changing the service address. Many <a href="#federated-network">federated networks</a> support SRV records to provide address portability, but allowing service users to set up their own domains for the addresses is not as commonly supported by the available server and client software as for email.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="federated-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Federated network</h1><div class="overlay-content"><p>Federated network is provided by several entities that agree upon the standards and operate the network collectively. This allows the users to choose their provider, that will hold their account, their messaging history and contacts, and communicate with other providers' servers on behalf of the user. The examples are email, XMPP, Matrix and Mastodon.</p><p>The advantage of that design is that there is no single organization that all users depend on, and the standards are more difficult to change, unless it benefits all users. There are several disadvantages: 1) the innovation is slower, 2) each user account still depends on a single organization, and in most cases can't move to another provider without changing their network address – there is no <a href="#address-portability">address portability</a>, 3) the security and privacy are inevitably worse than with the centralized networks.</p><p><a href="https://en.wikipedia.org/wiki/Federation_(information_technology)">Federation on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="anonymous-credentials" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Anonymous credentials</h1><div class="overlay-content"><p>The credential that allows proving something, e.g. the right to access some resource, without identifying the user. This credential can either be generated by a trusted party or by the user themselves and provided together with the request to create the resource. The first approach creates some centralized dependency in most cases. The second approach does not require any trust - this is used in SimpleX network to authorize access to the messaging queues.</p><p><a href="https://en.wikipedia.org/wiki/Digital_credential">Digital credential on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="blockchain" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Blockchain</h1><div class="overlay-content"><p>In a wide sense, blockchain means a sequence of blocks of data, where each block contains a cryptographic hash of the previous block, thus providing integrity to the whole chain. Blockchains are used in many communication and information storage systems to provide integrity and immutability of the data. For example, BluRay disks use blockchain. SimpleX messaging queues also use blockchain - each message includes the hash of the previous message, to ensure the integrity – if any message is modified it will be detected by the recipient when the next message is received. Blockchains are a subset of <a href="#merkle-directed-acyclic-graph">Merkle directed acyclic graphs</a>.</p><p>In a more narrow sense, particularly in media, blockchain is used to refer specifically to distributed ledger, where each record also includes the hash of the previous record, but the blocks have to be agreed by the participating peers using some <a href="https://en.wikipedia.org/wiki/Consensus_(computer_science)">consensus protocol</a>.</p><p><a href="https://en.wikipedia.org/wiki/Blockchain">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="merkle-directed-acyclic-graph" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Merkle directed acyclic graph</h1><div class="overlay-content"><p>Also known as Merkle DAG, a data structure based on a general graph structure where node contains the cryptographic hashes of the previous nodes that point to it. Merkle trees are a subset of Merkle DAGs - in this case each leaf contains a cryptographic hash of the parent.</p><p>This structure by design allows to verify the integrity of the whole structure by computing its hashes and comparing with the hashes included in the nodes, in the same way as with <a href="#blockchain">blockchain</a>.</p><p>The motivation to use DAG in distributed environments instead of a simpler linear blockchain is to allow concurrent additions, when there is no requirement for a single order of added items. Merkle DAG is used, for example, in <a href="https://en.wikipedia.org/wiki/InterPlanetary_File_System">IPFS</a> and will be used in decentralized SimpleX groups.</p><p><a href="https://en.wikipedia.org/wiki/Merkle_tree">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="break-in-recovery" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Break-in recovery</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="double-ratchet-algorithm" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Double ratchet algorithm</h1><div class="overlay-content"><p>It is used by two parties to exchange <a href="#end-to-end-encryption">end-to-end encrypted</a> messages. The parties will use some <a href="#key-agreement-protocol">key agreement protocol</a> to agree on the initial shared secret key.</p><p>Double Ratchet algorithm provides <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>. It is <a href="https://signal.org/docs/specifications/doubleratchet">designed by Signal</a>, and used in SimpleX Chat and many other secure messengers. Most experts consider it the state-of-the-art encryption protocol in message encryption.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="centralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Centralized network</h1><div class="overlay-content"><p>Centralized networks are provided or controlled by a single entity. The examples are Threema, Signal, WhatsApp and Telegram. The advantage of that design is that the provider can innovate faster, and has a centralized approach to security. But the disadvantage is that the provider can change or discontinue the service, and leak, sell or disclose in some other way all users' data, including who they are connected with.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="content-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Content padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="decentralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Decentralized network</h1><div class="overlay-content"><p>Decentralized network is often used to mean "the network based on decentralized blockchain". In its original meaning, decentralized network means that there is no central authority or any other point of centralization in the network, other than network protocols specification. The advantage of decentralized networks is that they are resilient to censorship and to the provider going out of business. The disadvantage is that they are often slower to innovate, and the security may be worse than with the centralized network.</p><p>The examples of decentralized networks are email, web, DNS, XMPP, Matrix, BitTorrent, etc. All these examples have a shared global application-level address space. Cryptocurrency blockchains not only have a shared address space, but also a shared state, so they are more centralized than email. Tor network also has a shared global address space, but also a central authority. SimpleX network does not have a shared application-level address space (it relies on the shared transport-level addresses - SMP relay hostnames or IP addresses), and it does not have any central authority or any shared state.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="defense-in-depth" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Defense in depth</h1><div class="overlay-content"><p>Originally, it is a military strategy that seeks to delay rather than prevent the advance of an attacker, buying time and causing additional casualties by yielding space.</p><p>In information security, defense in depth represents the use of multiple computer security techniques to help mitigate the risk of one component of the defense being compromised or circumvented. An example could be anti-virus software installed on individual workstations when there is already virus protection on the firewalls and servers within the same environment.</p><p>SimpleX network applies defense in depth approach to security by having multiple layers for the communication security and privacy:</p><ul>
+<li>double ratchet algorithm for <a href="#end-to-end-encryption">end-to-end encryption</a> with <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>,</li>
+<li>additional layer of end-to-end encryption for each messaging queue and another encryption layer of encryption from the server to the recipient inside TLS to prevent correlation by ciphertext,</li>
+<li>TLS with only strong ciphers allowed,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-server connection via server offline certificate verification,</li>
+<li>mitigation of replay attacks via signing over transport channel binding,</li>
+<li>multiple layers of <a href="#message-padding">message padding</a> to reduce efficiency of traffic analysis,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-client out-of-band channel when sending the invitation,</li>
+<li>rotation of delivery queues to reduce efficiency of traffic analysis,</li>
+<li>etc.</li>
+</ul><p><a href="https://en.wikipedia.org/wiki/Defence_in_depth">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="end-to-end-encryption" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">End-to-end encryption</h1><div class="overlay-content"><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><p>End-to-end encryption requires agreeing cryptographic keys between the sender and the recipient in a way that no eavesdroppers can access the agreed keys. See <a href="#key-agreement-protocol">key agreement protocol</a>. This key exchange can be compromised via <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>, particularly if key exchange happens via the same communication provider and no out-of-band channel is used to verify key exchange.</p><p><a href="https://en.wikipedia.org/wiki/End-to-end_encryption">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-compromise-security" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-compromise security</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="man-in-the-middle-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Man-in-the-middle attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="message-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Message padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="key-agreement-protocol" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key agreement protocol</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="tooltip-end-to-end-encryption" class="glossary-tooltip"><div class="tooltip-content"><h4 class="tooltip-title">End-to-end encryption</h4><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><button class="read-more-btn open-overlay-btn" data-show-overlay="end-to-end-encryption">Read more</button></div></div><div id="key-exchange" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key exchange</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="mitm-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">MITM attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="non-repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Non-repudiation</h1><div class="overlay-content">Non-repudiation</div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="onion-routing" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Onion routing</h1><div class="overlay-content"><p>A technique for anonymous communication over a computer network that uses multiple layers of message encryption, analogous to the layers of an onion. The encrypted data is transmitted through a series of network nodes called "onion routers," each of which "peels" away a single layer, revealing the data's next destination. The sender remains anonymous because each intermediary knows only the location of the immediately preceding and following nodes.</p><p>The most widely used onion network is <a href="https://en.wikipedia.org/wiki/Tor_(network)">Tor</a>.</p><p>Some elements of SimpleX network use similar ideas in their design - different addresses for the same resource used by different parties, and additional encryption layers. Currently though, SimpleX messaging protocol does not protect sender network address, as the relay server is chosen by the recipient. The delivery relays chosen by sender that are planned for the future would make SimpleX design closer to onion routing.</p><p><a href="https://en.wikipedia.org/wiki/Onion_routing">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="overlay-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Overlay network</h1><div class="overlay-content"><p>Nodes in the overlay network can be thought of as being connected by virtual or logical links, each of which corresponds to a path, perhaps through many physical links, in the underlying network. Tor, for example, is an overlay network on top of IP network, which in its turn is also an overlay network over some underlying physical network.</p><p>SimpleX Clients also form a network using SMP relays and IP or some other overlay network (e.g., Tor), to communicate with each other. SMP relays, on another hand, do not form a network.</p><p><a href="https://en.wikipedia.org/wiki/Overlay_network">Wikipedia</a></p><h1>Non-repudiation</h1><p>The property of the cryptographic or communication system that allows the recipient of the message to prove to any third party that the sender identified by some cryptographic key sent the message. It is the opposite to <a href="#repudiation">repudiation</a>. While in some context non-repudiation may be desirable (e.g., for contractually binding messages), in the context of private communications it may be undesirable.</p><p><a href="https://en.wikipedia.org/wiki/Non-repudiation">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Repudiation</h1><div class="overlay-content"><p>The property of the cryptographic or communication system that allows the sender of the message to plausibly deny having sent the message, because while the recipient can verify that the message was sent by the sender, they cannot prove it to any third party - the recipient has a technical ability to forge the same encrypted message. This is an important quality of private communications, as it allows to have the conversation that can later be denied, similarly to having a private face-to-face conversation.</p><p>See also <a href="#non-repudiation">non-repudiation</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="pairwise-pseudonymous-identifier" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Pairwise pseudonymous identifier</h1><div class="overlay-content"><p>Generalizing <a href="https://csrc.nist.gov/glossary/term/pairwise_pseudonymous_identifier">the definition</a> from NIST Digital Identity Guidelines, it is an opaque unguessable identifier generated by a service used to access a resource by only one party.</p><p>In the context of SimpleX network, these are the identifiers generated by SMP relays to access anonymous messaging queues, with a separate identifier (and access credential) for each accessing party: recipient, sender and and optional notifications subscriber. The same approach is used by XFTP relays to access file chunks, with separate identifiers (and access credentials) for sender and each recipient.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Peer-to-peer</h1><div class="overlay-content"><p>Peer-to-peer (P2P) is the network architecture when participants have equal rights and communicate directly via a general purpose transport or overlay network. Unlike client-server architecture, all peers in a P2P network both provide and consume the resources. In the context of messaging, P2P architecture usually means that the messages are sent between peers, without user accounts or messages being stored on any servers. Examples are Tox, Briar, Cwtch and many others.</p><p>The advantage is that the participants do not depend on any servers. There are <a href="./SIMPLEX.md#comparison-with-p2p9-messaging-protocols">multiple downsides</a> to that architecture, such as no asynchronous message delivery, the need for network-wide peer addresses, possibility of network-wide attacks, that are usually mitigated only by using a centralized authority. These disadvantages are avoided with <a href="#proxied-peer-to-peer">proxied P2P</a> architecture.</p><p><a href="https://en.wikipedia.org/wiki/Peer-to-peer">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="proxied-peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Proxied peer-to-peer</h1><div class="overlay-content"><p>Network topology of the communication system when peers communicate via proxies that do not form the network themselves. Such design is used in Pond, that has a fixed home server for each user, and in SimpleX, that uses multiple relays providing temporary connections.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="perfect-forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Perfect forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-cryptography" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum cryptography</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-hybrid-crypto" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum hybrid crypto</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="recovery-from-compromise" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Recovery from compromise</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="user-identity" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">User identity</h1><div class="overlay-content"><p>In a communication system it refers to anything that uniquely identifies the users to the network. Depending on the communication network, it can be a phone number, email address, username, public key or a random opaque identifier. Most messaging networks rely on some form of user identity. SimpleX appears to be the only messaging network that does not rely on any kind of user identity - see <a href="https://en.wikipedia.org/wiki/Comparison_of_instant_messaging_protocols">this comparison</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div></body></html>
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+                            SimpleX bots API
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+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M512 256C512 397.385 397.385 512 256 512C114.615 512 0 397.385 0 256C0 114.615 114.615 0 256 0C397.385 0 512 114.615 512 256ZM149.744 205.384L166.479 218.68C192.394 239.268 218.153 259.732 243.918 280.188C254.117 288.285 257.065 288.23 267.363 280.05C310.416 245.847 353.478 211.655 396.54 177.463L400.139 174.605L413.302 164.153C414.537 163.173 415.803 162.232 418.049 160.511V167.062L418.05 212.292C418.05 257.522 418.051 302.752 418.045 347.982C418.044 359.363 414.904 362.477 403.495 362.477L283.932 362.479C225.163 362.479 166.395 362.479 107.626 362.477C96.1521 362.477 93.0066 359.391 93.0051 348.06C92.9968 287.587 93.001 227.114 93.001 166.641V160.359C112.401 175.751 130.933 190.456 149.744 205.384ZM116.095 149C126.458 157.244 135.905 164.758 145.633 172.489C166.835 189.321 187.943 206.083 209.045 222.84L255.556 259.775L395.017 149H116.095Z" />
+                            </svg>
+                        </a>
+                    </div>
+
+                    <div class="flex gap-2 justify-center">
+                        <a href="https://github.com/simplex-chat" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 41 41" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path d="M20.2907 0.926758C9.24635 0.926758 0.290527 10.1075 0.290527 21.4331C0.290527 30.4933 6.02118 38.18 13.9679 40.8915C14.9674 41.0813 15.3344 40.4467 15.3344 39.905C15.3344 39.4161 15.3158 37.8007 15.3072 36.0872C9.74314 37.3277 8.56906 33.6677 8.56906 33.6677C7.65927 31.2975 6.3484 30.6672 6.3484 30.6672C4.53379 29.3945 6.48519 29.4206 6.48519 29.4206C8.49355 29.5653 9.55105 31.5338 9.55105 31.5338C11.3349 34.6688 14.2298 33.7624 15.3711 33.2385C15.5506 31.9131 16.069 31.0085 16.6409 30.4964C12.1986 29.9779 7.52878 28.2195 7.52878 20.3621C7.52878 18.1232 8.31007 16.294 9.58947 14.8579C9.38181 14.3414 8.69723 12.2557 9.78322 9.43111C9.78322 9.43111 11.4627 8.87998 15.2847 11.5331C16.8801 11.0787 18.591 10.8509 20.2907 10.8431C21.9904 10.8509 23.7027 11.0787 25.301 11.5331C29.1183 8.87998 30.7955 9.43111 30.7955 9.43111C31.8842 12.2557 31.1992 14.3414 30.9916 14.8579C32.274 16.294 33.05 18.1232 33.05 20.3621C33.05 28.2382 28.3712 29.9724 23.9176
+                                    30.4801C24.635 31.1165 25.2742 32.3644 25.2742 34.2776C25.2742 37.0214 25.251 39.2296 25.251 39.905C25.251 40.4507 25.611 41.0902 26.6248 40.8888C34.5672 38.1742 40.2905 30.4903 40.2905 21.4331C40.2905 10.1075 31.336 0.926758 20.2907 0.926758Z" />
+                            </svg>
+                        </a>
+                        <a href="https://www.reddit.com/r/SimpleXChat/" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 41 41" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M20.874 40.9268C31.9197 40.9268 40.874 31.9724 40.874 20.9268C40.874 9.88108 31.9197 0.926758 20.874 0.926758C9.82834 0.926758 0.874023 9.88108 0.874023 20.9268C0.874023 31.9724 9.82834 40.9268 20.874 40.9268ZM30.4091 16.615C31.9031 16.615 33.1157 17.8276 33.1157 19.3216C33.1157 20.426 32.4445 21.3787 31.5567 21.8118C31.6 22.0716 31.6217 22.3315 31.6217 22.613C31.6217 26.7705 26.7929 30.1268 20.8165 30.1268C14.8402 30.1268 10.0114 26.7705 10.0114 22.613C10.0114 22.3315 10.0331 22.05 10.0764 21.7902C9.12362 21.3571 8.47402 20.426 8.47402 19.3216C8.47402 17.8276 9.68662 16.615 11.1807 16.615C11.8953 16.615 12.5665 16.9181 13.0429 17.3728C14.9051 16.0086 17.4819 15.1642 20.3618 15.0776L21.726 8.6248C21.7693 8.49488 21.8343 8.3866 21.9425 8.32164C22.0508 8.25668 22.1807 8.23504 22.3106 8.25668L26.7929 9.20944C27.0961 8.55984 27.7457 8.12676 28.5035 8.12676C29.5646 8.12676 30.4307 8.99292 30.4307
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+                                    19.3216 25.0173 19.3216C23.9563 19.3216 23.0902 20.1878 23.0902 21.2488Z" />
+                            </svg>
+                        </a>
+                        <a href="https://twitter.com/simplexchat" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 41 41" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M20.4575 40.9268C31.5032 40.9268 40.4575 31.9725 40.4575 20.9268C40.4575 9.88106 31.5032 0.926758 20.4575 0.926758C9.41182 0.926758 0.45752 9.88106 0.45752 20.9268C0.45752 31.9725 9.41182 40.9268 20.4575 40.9268ZM29.916 16.7766C29.916 23.1157 25.014 30.4265 16.0519 30.4265V30.423C13.4038 30.4265 10.8115 29.6795 8.58252 28.2719C8.96846 28.3174 9.35558 28.3397 9.74271 28.3409C11.9372 28.3432 14.0688 27.6182 15.7942 26.283C13.7101 26.2444 11.8802 24.9055 11.2425 22.9507C11.9716 23.0898 12.7245 23.0619 13.4418 22.869C11.1689 22.4165 9.53371 20.4504 9.53252 18.1671V18.1062C10.2106 18.478 10.9694 18.6835 11.7448 18.7057C9.60377 17.2981 8.94233 14.4948 10.2355 12.3026C12.7103 15.2992 16.3606 17.1207 20.2782 17.3147C19.8851 15.6487 20.4231 13.902 21.6878 12.7306C23.6507 10.9137 26.737 11.0073 28.5824 12.9387C29.6737 12.7271 30.7199 12.3327 31.677 11.7738C31.3125 12.8857 30.5513 13.828 29.5348 14.4277C30.5002
+                                    14.3155 31.4443 14.0609 32.3325 13.6728C31.6782 14.6362 30.8553 15.4781 29.9017 16.1562C29.916 16.362 29.916 16.5685 29.916 16.7766Z" />
+                            </svg>
+                        </a>
+                        <a href="https://www.linkedin.com/company/simplex-chat/" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 41 41" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M20.0408 0.926758C8.9951 0.926758 0.0407715 9.88109 0.0407715 20.9268C0.0407715 31.9724 8.9951 40.9268 20.0408 40.9268C31.0864 40.9268 40.0408 31.9724 40.0408 20.9268C40.0408 9.88109 31.0864 0.926758 20.0408 0.926758ZM9.6421 17.4916H14.1745V31.1098H9.6421V17.4916ZM14.4731 13.279C14.4437 11.9438 13.4889 10.9268 11.9383 10.9268C10.3878 10.9268 9.3741 11.9438 9.3741 13.279C9.3741 14.5866 10.3579 15.6328 11.8794 15.6328H11.9084C13.4889 15.6328 14.4731 14.5866 14.4731 13.279ZM25.3017 17.1718C28.2843 17.1718 30.5203 19.1187 30.5203 23.3015L30.5201 31.1098H25.9879V23.824C25.9879 21.994 25.3319 20.7453 23.6912 20.7453C22.439 20.7453 21.6932 21.5871 21.3656 22.4003C21.2458 22.6916 21.2164 23.0976 21.2164 23.5046V31.1101H16.6834C16.6834 31.1101 16.7431 18.7698 16.6834 17.492H21.2164V19.4208C21.8179 18.4936 22.8953 17.1718 25.3017 17.1718Z" />
+                            </svg>
+                        </a>
+                        <a href="https://simplex.chat/feed.rss" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 512 512" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M256 512C397.385 512 512 397.385 512 256C512 114.615 397.385 0 256 0C114.615 0 0 114.615 0 256C0 397.385 114.615 512 256 512ZM132.791 157.572C215.586 161.137 279.503 196.841 323.612 267.517C344.138 302.436 354.186 339.959 354.57 380.122H406.814C409.639 231.301 280.977 103.1 132.791 106.05V157.572ZM309.994 343.843C311.593 356.035 313.096 367.877 314.65 380.116H261.161C260.496 344.968 248.303 314.452 223.472 289.485C198.613 264.491 168.097 252.282 132.755 251.38V199.743C198.318 196.346 288.694 244.344 309.994 343.843ZM132.766 336.706C129.293 354.261 137.796 370.323 154.848 378.004L155.461 378.242C156.267 378.558 156.912 378.81 157.577 378.985C173.012 383.066 186.298 379.318 196.604 367.168C206.463 355.544 208.397 342.145 201.87 328.354C195.205 314.271 183.419 307.215 167.834 307.356C151.188 307.509 135.971 320.504 132.766 336.706Z" />
+                            </svg>
+                        </a>
+                    </div>
+                </div>
+            </article>
+        </div>
+        <a href="#" class="text-grey-black dark:text-white text-[16px] text-center lg:ltr:text-left lg:rtl:text-right font-medium leading-[28px] tracking-[0.01em] block mt-[60px]">© 2020-2025 SimpleX Chat | Open-Source Project</a>
+    </div>
+</section>
+
+
+        <script src="/js/swiper-bundle.min.js"></script>
+        <script src="/js/script.js"></script>
+    </body>
+</html>
diff --git a/ja/index.html b/ja/index.html
index e6a786f568..f44d0609a0 100644
--- a/ja/index.html
+++ b/ja/index.html
@@ -153,6 +153,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/ja/invitation/index.html b/ja/invitation/index.html
index db53d5d277..2c4867456d 100644
--- a/ja/invitation/index.html
+++ b/ja/invitation/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/ja/messaging/index.html b/ja/messaging/index.html
index e784f48494..e57499fbe2 100644
--- a/ja/messaging/index.html
+++ b/ja/messaging/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/ja/old/index.html b/ja/old/index.html
index d8659c38dc..ea1c6ca1f3 100644
--- a/ja/old/index.html
+++ b/ja/old/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/ja/why/index.html b/ja/why/index.html
index 7472265342..3da9d03c08 100644
--- a/ja/why/index.html
+++ b/ja/why/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/jobs/index.html b/jobs/index.html
index 33ce0ca20a..a77520bee0 100644
--- a/jobs/index.html
+++ b/jobs/index.html
@@ -123,6 +123,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/js/script.js b/js/script.js
index cf240dd375..b26d8b0f7c 100644
--- a/js/script.js
+++ b/js/script.js
@@ -130,7 +130,7 @@ if (isMobile.iOS) {
 }
 
 function clickHandler(e) {
-    if (e.target.closest('.card')) {
+    if (e.target.closest('.card') && !e.target.closest('[data-xftp-app]')) {
         e.target.closest('.card').classList.toggle('card-active');
         e.target.closest('.card').classList.toggle('no-hover');
     }
@@ -182,7 +182,7 @@ function openOverlay() {
     if (hash) {
         const id = hash.split('#')[1];
         const el = document.getElementById(id)
-        if (el.classList.contains('overlay')) {
+        if (el && el.classList.contains('overlay')) {
             const scrollTo = el.getAttribute('data-scroll-to')
             if (scrollTo) {
                 const scrollToEl = document.getElementById(scrollTo)
diff --git a/messaging/index.html b/messaging/index.html
index 45cd7ec7ff..8dea1c648b 100644
--- a/messaging/index.html
+++ b/messaging/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/nl/contact/index.html b/nl/contact/index.html
index 1146b5d634..51cca2902c 100644
--- a/nl/contact/index.html
+++ b/nl/contact/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/nl/fdroid/index.html b/nl/fdroid/index.html
index fa49fa99f1..cfd151c5ee 100644
--- a/nl/fdroid/index.html
+++ b/nl/fdroid/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/nl/file/index.html b/nl/file/index.html
new file mode 100644
index 0000000000..1dc0802c85
--- /dev/null
+++ b/nl/file/index.html
@@ -0,0 +1,888 @@
+<!DOCTYPE html>
+<html lang="nl"
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+            dir="ltr"
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    >
+    <head>
+        <meta charset="UTF-8">
+        <meta http-equiv="X-UA-Compatible" content="IE=edge">
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        <title>SimpleX File Transfer</title>
+        <meta name="description" content="Send files securely with end-to-end encryption"/>
+        <meta name="Content-Type" content="text/html;charset=utf-8"/>
+        
+        <meta http-equiv="onion-location" content="http://isdb4l77sjqoy2qq7ipum6x3at6hyn3jmxfx4zdhc72ufbmuq4ilwkqd.onion/" />
+        <meta property="og:url" content="https://simplex.chat/" />
+        
+        <meta property="og:type" content="website"/>
+        <meta property="og:title" content="SimpleX File Transfer"/>
+        <meta property="og:description" content="Send files securely with end-to-end encryption"/>
+        <meta property="og:image" content="https://simplex.chat/img/share_simplex.jpg"/>
+        <meta name="twitter:card" content="summary"/>
+        <link rel="icon" type="image/png" sizes="96x96" href="/img/favicon.ico"/>
+
+        <link rel="stylesheet" href="/css/swiper-bundle.min.css">
+        <link rel="stylesheet" href="/css/blog.css">
+        <link href="/css/tailwind.css" rel="stylesheet"/>
+        <link rel="stylesheet" href="/css/style.css">
+        <link rel="stylesheet" href="/css/design3-nav.css">
+        <script async defer src="https://buttons.github.io/buttons.js"></script>
+        <script src="/js/flag-anchor.js"></script>
+        
+    </head>
+    <body class="bg-[#F3FAFF] dark:bg-[#000832]">
+        
+
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+        
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+
+<header id="navbar">
+    <a href="/nl" class="logo logo-light ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-light.png" alt="logo"></a>
+    <a href="/nl" class="logo logo-dark ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-dark.png" alt="logo"></a>
+
+    <nav id="menu">
+        <ul>
+            <li class="nav-link ">
+                <a href="/nl">
+                    <span class="nav-link-text">Begin pagina</span>
+                </a>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/directory/">
+                    <span class="nav-link-text">Directory</span>
+                </a>
+            </li>
+
+            
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">Handleiding</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    
+                        <li><a href="/docs/guide/readme.html" class="">Snel aan de slag</a></li>
+                    
+                        <li><a href="/docs/guide/send-messages.html" class="">Berichten versturen</a></li>
+                    
+                        <li><a href="/docs/guide/secret-groups.html" class="">Geheime groepen</a></li>
+                    
+                        <li><a href="/docs/guide/chat-profiles.html" class="">Chat profielen</a></li>
+                    
+                        <li><a href="/docs/guide/managing-data.html" class="">Gegevens beheren</a></li>
+                    
+                        <li><a href="/docs/guide/audio-video-calls.html" class="">Audio en video gesprekken</a></li>
+                    
+                        <li><a href="/docs/guide/privacy-security.html" class="">Privacy en beveiliging</a></li>
+                    
+                        <li><a href="/docs/guide/app-settings.html" class="">App instellingen</a></li>
+                    
+                        <li><a href="/docs/guide/making-connections.html" class="">Connecties maken</a></li>
+                    
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">Referentie</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md"
+                        target="_blank">Whitepaper
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/privacy">Privacybeleid</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/simplex-messaging.md"
+                        target="_blank">SMP protocol
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/protocol/simplex-chat.html">Chat protocol</a></li>
+                    <li><a href="/docs/glossary.html">Woordenlijst</a></li>
+
+                    <hr>
+
+                    
+                        <li><a href="/docs/simplex.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX-netwerk</a></li>
+                    
+                        <li><a href="/docs/business.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX voor bedrijven</a></li>
+                    
+                        <li><a href="/docs/directory.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX Directory</a></li>
+                    
+                        <li><a href="/docs/android.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Toegang tot Android bestanden</a></li>
+                    
+                        <li><a href="/docs/server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Host SMP Server</a></li>
+                    
+                        <li><a href="/docs/xftp-server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Host XFTP Server</a></li>
+                    
+                        <li><a href="/docs/webrtc.html" class=" lg:px-[20px] inline-block whitespace-nowrap">WebRTC servers</a></li>
+                    
+                        <li><a href="/downloads/" class=" lg:px-[20px] inline-block whitespace-nowrap">Downloads</a></li>
+                    
+                        <li><a href="/reproduce/" class=" lg:px-[20px] inline-block whitespace-nowrap">Verify & reproduce builds</a></li>
+                    
+                        <li><a href="/transparency/" class=" lg:px-[20px] inline-block whitespace-nowrap">Transparantie</a></li>
+                    
+                        <li><a href="/security/" class=" lg:px-[20px] inline-block whitespace-nowrap">Beveiliging</a></li>
+                    
+                        <li><a href="/faq/" class=" lg:px-[20px] inline-block whitespace-nowrap">FAQ</a></li>
+                    
+
+                    <hr>
+
+                    <li><a href="/docs/translations.html"
+                    >Vertaal SimpleX Chat
+                    </a></li>
+                    <li><a href="/docs/android.html"
+                    >Toegang tot Android bestanden
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/blob/stable/apps/simplex-bot-advanced/Main.hs"
+                        target="_blank">Chatbot voorbeeld
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/tree/stable/packages/simplex-chat-client/typescript"
+                        target="_blank">TypeScript SDK
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/cli.html">Terminal CLI</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq"
+                        target="_blank">SimpleXMQ
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/blog">
+                    <span class="nav-link-text">Blog</span>
+                </a>
+            </li>
+        </ul>
+    </nav>
+
+    <div class="right-links">
+        
+            <a class="box-btn token md:hidden" href="/donate">
+                Doneer
+            </a>
+        
+        <button href="#" class="theme-switch-btn">
+            <svg class="sun" width="469" height="469" viewBox="0 0 469 469" fill="none" xmlns="http://www.w3.org/2000/svg">
+            <path d="M225.768 1.44594C220.301 3.84594 214.701 10.6459 213.768 15.9793C213.234 18.3793 213.101 31.7126 213.368 45.7126L213.768 71.1793L217.634 76.1126C226.701 88.1126 242.968 87.5793 252.301 75.0459C254.968 71.5793 255.101 69.5793 255.101 42.2459C255.101 14.9126 254.968 12.9126 252.301 9.44594C250.834 7.44594 248.034 4.51261 246.168 3.17928C241.768 -0.154057 231.101 -1.08739 225.768 1.44594Z"/>
+            <path d="M72.9687 65.3128C63.7687 71.5794 60.1687 81.4461 63.7687 91.1794C65.502 95.4461 98.702 129.446 104.035 132.379C106.035 133.446 110.569 134.246 114.035 134.246C126.035 134.246 134.435 125.846 134.435 113.846C134.435 110.379 133.635 105.846 132.569 103.846C129.635 98.5128 95.6353 65.3128 91.3687 63.5794C85.102 61.3128 77.902 61.9794 72.9687 65.3128Z"/>
+            <path d="M377.102 63.7128C373.102 65.3128 338.969 98.7794 336.302 103.846C335.236 105.846 334.436 110.379 334.436 113.846C334.436 125.846 342.836 134.246 354.836 134.246C358.302 134.246 362.836 133.446 364.836 132.379C370.169 129.446 403.369 95.4461 405.102 91.1794C408.702 81.4461 405.102 71.5794 395.902 65.3128C391.102 61.9794 383.102 61.3128 377.102 63.7128Z"/>
+            <path d="M211.635 108.246C185.635 113.179 163.502 125.046 144.302 144.112C117.902 170.512 104.968 203.579 106.835 240.246C109.768 297.712 149.102 344.912 205.902 359.179C218.568 362.379 250.302 362.379 262.968 359.179C310.435 347.312 345.768 312.646 358.702 265.046C362.435 251.446 362.835 219.446 359.368 205.712C347.368 158.112 312.302 122.379 265.235 110.112C251.768 106.512 225.502 105.579 211.635 108.246Z"/>
+            <path d="M12.4349 214.779C-0.498477 220.379 -4.09848 237.579 5.23486 248.246C11.2349 255.046 15.6349 255.846 45.3682 255.313C74.0349 254.913 75.1015 254.646 81.6349 245.713C85.9015 239.979 85.5015 228.113 80.8349 221.979C74.4349 213.713 71.2349 212.913 42.1682 212.913C23.7682 213.046 15.2349 213.579 12.4349 214.779Z"/>
+            <path d="M396.035 215.179C393.635 216.379 390.035 219.445 388.035 221.979C383.368 228.112 382.968 239.979 387.235 245.712C394.035 254.779 394.301 254.912 426.435 254.912C458.568 254.912 458.835 254.779 465.635 245.712C469.501 240.512 469.501 227.979 465.635 222.779C458.968 213.845 458.301 213.579 428.035 213.179C404.435 212.912 399.768 213.179 396.035 215.179Z"/>
+            <path d="M103.101 336.779C96.7013 340.779 65.368 373.179 63.768 377.313C57.368 394.513 74.168 411.313 91.368 404.913C95.6347 403.179 129.635 369.979 132.568 364.646C135.368 359.446 134.968 349.046 131.768 343.846C126.168 334.646 112.035 331.179 103.101 336.779Z"/>
+            <path d="M344.035 336.912C341.635 338.379 338.569 341.445 337.102 343.845C333.902 349.045 333.502 359.445 336.302 364.645C339.235 369.979 373.235 403.179 377.502 404.912C387.235 408.512 397.102 404.912 403.369 395.712C406.702 390.779 407.369 383.579 405.102 377.312C403.369 373.045 370.169 339.045 364.835 336.112C359.635 333.312 349.235 333.712 344.035 336.912Z"/>
+            <path d="M225.368 385.712C222.968 387.046 219.368 390.112 217.368 392.646L213.768 397.312V426.379C213.768 458.246 213.901 458.779 222.968 465.446C228.168 469.312 240.701 469.312 245.901 465.446C254.834 458.779 255.101 457.979 255.501 428.246C256.034 397.579 255.234 394.379 246.834 387.979C241.101 383.579 231.634 382.512 225.368 385.712Z"/>
+            </svg>
+
+            <svg class="moon" width="469" height="469" viewBox="5 5 20 23" xmlns="http://www.w3.org/2000/svg">
+                <path d="M10.895 7.574c0 7.55 5.179 13.67 11.567 13.67 1.588 0 3.101-0.38 4.479-1.063-1.695 4.46-5.996 7.636-11.051 7.636-6.533 0-11.83-5.297-11.83-11.83 0-4.82 2.888-8.959 7.023-10.803-0.116 0.778-0.188 1.573-0.188 2.39z"></path>
+            </svg>
+        </button>
+
+        
+
+        <button id="cross-btn" class="nav-toggle-btn">
+            <svg id="cross" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+            <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z" />
+        </svg>
+        </button>
+    </div>
+</header>
+<div id="mobile-header">
+    <a href="/nl" class="logo flex dark:hidden ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-light.svg" alt="" srcset=""></a>
+    <a href="/nl" class="logo hidden dark:flex ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-dark.svg" alt="" srcset=""></a>
+
+    <button id="hamburger" class="nav-toggle-btn">
+        <svg viewBox="0 0 100 80" width="36" height="36">
+            <rect width="100" height="15"></rect>
+            <rect y="30" width="100" height="15"></rect>
+            <rect y="60" width="100" height="15"></rect>
+        </svg>
+    </button>
+</div>
+
+
+<script>
+// switch theme
+const sunIcon = document.querySelector('.sun');
+const moonIcon = document.querySelector('.moon');
+
+const userTheme = localStorage.getItem('theme');
+const systemTheme = window.matchMedia('(prefers-color-scheme: dark)').matches;
+const prismThemeLink = document.getElementById('prism-theme')
+
+function iconToggle () {
+    sunIcon.classList.toggle('hidden');
+    moonIcon.classList.toggle('hidden');
+}
+
+function themeCheck() {
+    if (userTheme === 'dark' || (!userTheme && systemTheme)) {
+        document.documentElement.classList.add('dark');
+        moonIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+    }
+    else{
+        sunIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+    }
+}
+themeCheck();
+
+function themeSwitch () {
+    if (document.documentElement.classList.contains('dark')) {
+        document.documentElement.classList.remove('dark');
+        localStorage.setItem('theme', 'light');
+        if(prismThemeLink){
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+        iconToggle();
+    } else {
+        document.documentElement.classList.add('dark');
+        localStorage.setItem('theme', 'dark');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+        iconToggle();
+    }
+}
+
+const nav = document.querySelector('header#navbar');
+
+window.addEventListener('click',(e)=>{
+    if(e.target.closest('.nav-link')){
+        if(e.target.closest('.nav-link').classList.contains('active')){
+            e.target.closest('.nav-link').classList.remove('active');
+        }
+        else{
+            document.querySelectorAll('.nav-link').forEach(el => el.classList.remove('active'))
+            e.target.closest('.nav-link').classList.add('active');
+        }
+    }
+    else if(e.target.closest('.nav-toggle-btn')){
+        if(nav.classList.contains('open')){
+            nav.classList.remove('open');
+            document.getElementById('mobile-header').classList.remove('nav-open');
+            document.documentElement.classList.remove('lock-scroll');
+        }
+        else{
+            document.documentElement.classList.add('lock-scroll');
+            document.getElementById('mobile-header').classList.add('nav-open');
+            nav.classList.add('open');
+        }
+    }
+    else if(e.target.closest('.theme-switch-btn')){
+        themeSwitch();
+    }
+});
+</script>
+
+        <html><head><link rel="stylesheet" href="/file-assets/index.css">
+<style>
+  /* Reset website .card styles that conflict with xftp bundle */
+  #app .card { cursor: default; }
+  #app .card,
+  #app .card > div { transition: unset; height: auto; }
+  #app .card > div > * { opacity: unset; max-height: unset; transform: unset; transition: unset; }
+
+  /* Align xftp bundle with website design */
+  #app { font-family: inherit; color: #3F484B; max-width: 600px; width: 100%; margin: 0 auto; padding: 0; }
+  #app .card { background: transparent; box-shadow: none; padding: 0; border-radius: 0; }
+  #app .card > h1 { display: none; }
+  .dark #app h1 { color: #fff; }
+  #app .drop-zone { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; }
+  #app .drop-zone.drag-over { border-color: #0053D0; background: #DBEEFF; }
+  #app .btn { background: #0053D0; border-radius: 34px; padding: 12px 32px; font-size: .9rem; font-weight: 600; }
+  #app .btn:hover { background: #1661D1; }
+  #app .btn-secondary { background: #6b7280; border-radius: 34px; }
+  #app .hint { color: #6b7280; }
+  #app .link-row input { border-radius: 8px; border-color: #c5d3de; }
+  #app .security-note { background: #ffffff; border-radius: 12px; color: #3F484B; }
+  #app .security-note a { color: #0197FF; }
+  #app .success { color: #0053D0; }
+
+  .dark #app { color: #e5e7eb; }
+  .dark #app .card { background: transparent; box-shadow: none; }
+  .dark #app .drop-zone { border-color: #374151; }
+  .dark #app .drop-zone.drag-over { border-color: #70F0F9; background: #1B325C; }
+  .dark #app .btn { background: #70F0F9; color: #000832; }
+  .dark #app .btn:hover { background: #66D9E2; }
+  .dark #app .link-row input { border-color: #374151; background: #071C46; color: #e5e7eb; }
+  .dark #app .security-note { background: #0B2A59; color: #d1d5db; }
+  .dark #app .security-note a { color: #70F0F9; }
+  .dark #app .success { color: #70F0F9; }
+
+  #app #upload-error { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; text-align: center; }
+  .dark #app #upload-error { border-color: #374151; }
+
+  #app .stage > .btn { margin-top: 20px; }
+  #app .security-note { margin-top: 20px; }
+  #app .drop-zone .btn { margin: 10px 0 16px; }
+
+  /* Protocol overlay: image fixed, text scrolls natively */
+  /* Push popup below navbar at all widths */
+  #xftp-protocol { padding-top: 70px; }
+  #xftp-protocol .overlay-card {
+    display: flex;
+    flex-direction: column;
+    position: relative;
+    overflow: hidden;
+  }
+  @media (min-width: 768px) {
+    #xftp-protocol .overlay-card { max-height: min(660px, 100%); }
+  }
+  #xftp-protocol .overlay-card > h1 {
+    flex-shrink: 0;
+    padding-bottom: 16px;
+    margin-bottom: 0;
+    z-index: 1;
+  }
+  @media (min-width: 1024px) and (max-height: 750px) {
+    #xftp-protocol .overlay-card > h1 {
+      font-size: 22px;
+    }
+  }
+  /* .flex is the full-width scroll container */
+  #xftp-protocol .overlay-card > .flex {
+    flex: 1;
+    min-height: 0;
+    overflow-y: auto;
+    scrollbar-width: thin;
+    scrollbar-color: #c5d3de transparent;
+  }
+  .dark #xftp-protocol .overlay-card > .flex {
+    scrollbar-color: #374151 transparent;
+  }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar { width: 6px; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-track { background: transparent; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #c5d3de; border-radius: 3px; }
+  .dark #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #374151; }
+  /* Desktop: text stays left, image fixed on right */
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card > .flex > div:first-child {
+      max-width: 50%;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child {
+      position: absolute;
+      right: 56px;
+      top: 0;
+      bottom: 0;
+      left: 55%;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      pointer-events: none;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child > div {
+      height: 100%;
+      padding: 40px 0;
+      box-sizing: border-box;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child img {
+      height: 100%;
+    }
+  }
+  #xftp-protocol .close-overlay-btn {
+    position: absolute;
+    top: 24px;
+    right: 24px;
+    cursor: pointer;
+    z-index: 3;
+    fill: #606C71;
+  }
+  .dark #xftp-protocol .close-overlay-btn { fill: #e5e7eb; }
+  /* Scroll fade: gradient over text area only, hidden at bottom */
+  #xftp-protocol .overlay-card::after {
+    content: '';
+    position: absolute;
+    bottom: 40px;
+    left: 24px;
+    right: 24px;
+    height: 48px;
+    background: linear-gradient(rgba(255,255,255,0), #fff);
+    pointer-events: none;
+    z-index: 2;
+    transition: opacity 0.2s;
+  }
+  .dark #xftp-protocol .overlay-card::after {
+    background: linear-gradient(rgba(7,28,70,0), #071C46);
+  }
+  @media (min-width: 640px) {
+    #xftp-protocol .overlay-card::after { bottom: 56px; left: 56px; right: 56px; }
+  }
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card::after { right: 55%; }
+  }
+  #xftp-protocol.scrolled-bottom .overlay-card::after { opacity: 0; }
+  #xftp-protocol .overlay-card.flex,
+  #xftp-protocol.flex .overlay-card { animation: overlaySlideIn 0.25s ease-out; }
+  @keyframes overlaySlideIn {
+    from { opacity: 0; transform: scale(0.95) translateY(10px); }
+    to { opacity: 1; transform: scale(1) translateY(0); }
+  }
+  #xftp-protocol.overlay-closing { animation: overlayFadeOut 0.2s ease-in forwards; }
+  #xftp-protocol.overlay-closing .overlay-card { animation: overlaySlideOut 0.2s ease-in forwards; }
+  @keyframes overlayFadeOut {
+    from { opacity: 1; }
+    to { opacity: 0; }
+  }
+  @keyframes overlaySlideOut {
+    from { opacity: 1; transform: scale(1) translateY(0); }
+    to { opacity: 0; transform: scale(0.95) translateY(10px); }
+  }
+
+  .file-proto-link {
+    font-size: 1.25rem;
+    font-weight: 600;
+    background: linear-gradient(90deg, #001aa7 0%, #0095e7 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+    text-decoration: none;
+  }
+  .dark .file-proto-link {
+    background: linear-gradient(90deg, #019bfe 0%, #64fdff 58%, #c8feff 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+  }
+
+</style>
+
+</head><body><section class="bg-secondary-bg-light dark:bg-primary-bg-dark py-10 mt-[66px] px-5">
+  <div class="container flex flex-col items-center mx-auto">
+    <noscript>
+      <p class="text-center text-grey-black dark:text-white py-10">
+        JavaScript is required for file transfer.
+      </p>
+    </noscript>
+    <h1 class="text-[38px] text-center font-bold text-active-blue mb-8">SimpleX File Transfer</h1>
+    <div id="app" data-xftp-app="" data-no-hashchange="" class="w-full">
+      <div class="card">
+        <div class="drop-zone">
+          <p>Drag &amp; drop a file here</p>
+          <p class="hint">or</p>
+          <span class="btn">Choose file</span>
+          <p class="hint">Max 100 MB - <a href="#join-simplex">SimpleX Chat app</a> supports files up to 1 GB</p>
+        </div>
+      </div>
+    </div>
+    <template id="dl-placeholder">
+      <div class="card">
+        <h1>SimpleX File Transfer</h1>
+        <div class="stage">
+          <p>File available</p>
+          <button class="btn">Download</button>
+          <div class="security-note">
+            <p>This file is encrypted - data routers never see file contents, name or size.</p>
+            <p>The encryption key is in the link’s hash fragment - it is never sent to any server.</p>
+            <p>For better security, use <a href="https://simplex.chat/download">SimpleX Chat</a> app.</p>
+          </div>
+        </div>
+      </div>
+    </template>
+    <script>if(location.hash.length>50){var a=document.getElementById("app"),t=document.getElementById("dl-placeholder");if(a&&t)a.replaceChildren(t.content.cloneNode(true))}</script>
+    <script type="module" src="/file-assets/index.js"></script>
+
+    <p class="text-base text-center text-grey-black dark:text-white mt-10 max-w-[600px]">Send files securely with <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span> — no accounts, no tracking.</p>
+    <a href="javascript:void(0)" data-show-overlay="xftp-protocol" class="open-overlay-btn file-proto-link mt-3 block text-center">Learn more about XFTP protocol</a>
+  </div>
+</section>
+
+<section class="bg-primary-bg-light dark:bg-secondary-bg-dark py-[90px] px-5">
+  <div class="container flex flex-col items-center mx-auto text-center">
+    <h2 class="text-[35px] leading-[45px] md:text-[45px] md:leading-[55px] text-grey-black dark:text-white font-bold mb-5">
+      Get SimpleX Chat — the most secure &amp; private messenger
+    </h2>
+    <p class="text-base text-grey-black dark:text-white mb-14 max-w-[600px]">
+      The file transfer you just used uses the same data routing protocol as SimpleX Chat. The app has end-to-end encrypted messaging, voice and video calls, groups, and sending files. No account. No phone. No email. No user profile IDs.
+    </p>
+    <div class="flex items-center justify-center gap-4 flex-wrap">
+      <a href="https://apps.apple.com/us/app/simplex-chat/id1605771084" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apple_store.svg"></a>
+      <a href="https://play.google.com/store/apps/details?id=chat.simplex.app" target="_blank"><img class="h-[40px] w-auto" src="/img/new/google_play.svg"></a>
+      <a href="/nl/fdroid"><img class="h-[40px] w-auto" src="/img/new/f_droid.svg"></a>
+      <a href="https://testflight.apple.com/join/DWuT2LQu" target="_blank"><img class="h-[40px] w-auto" src="/img/new/testflight.png"></a>
+      <a href="https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-aarch64.apk" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apk_icon.png"></a>
+    </div>
+  </div>
+</section>
+
+
+  
+    
+    <div id="xftp-protocol" data-scroll-to="" class="overlay hidden fixed top-0 left-0 bottom-0 right-0 before:absolute before:w-full before:h-full bg-transparent before:bg-secondary-bg-light dark:before:bg-primary-bg-dark before:opacity-90 items-center justify-center p-3 md:p-10 z-[10000]">
+        <div class="overlay-card w-full md:w-fit md:max-w-[1276px] bg-white dark:bg-card-bg-dark opacity-100 h-full md:h-fit md:max-h-[660px] z-[10001] rounded-md shadow-[0px_3px_12px_rgba(0,0,0,0.2)] p-6 py-10 sm:p-14 overflow-auto scale-100">
+            <h1 class="text-3xl font-bold text-active-blue mb-6 ">XFTP protocol: the most secure file transfer</h1>
+            <div class="flex flex-col-reverse lg:flex-row gap-10 justify-between">
+                
+                    <div class="lg:max-w-[448px]">
+                        <div class="text-grey-black dark:text-white flex flex-col gap-6 text-base">
+                            <div>
+  <h3 class="font-bold text-lg mb-2">No account required</h3>
+  <p>Each file fragment uses a new random key. Data routers have no "users" or "files" - they transfer encrypted file fragments of fixed sizes.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Triple-encrypted in your browser</h3>
+  <p>File encryption key is present only in the URL hash fragment - your browser never sends it to a server. There are 3 encryption layers: TLS transport, per-recipient encryption (unique ephemeral key per transfer), and file <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span>.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Independent data routers</h3>
+  <p>When file is split to fragments, it is sent via network routers operated by independent parties. No operator can see the actual file size or name. Even if a router is compromised, it can only see encrypted fragments of fixed size. File fragments are cached by network routers for approximately 48 hours.</p>
+</div>
+<p class="mt-4">
+  <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/xftp.md" target="_blank" rel="noopener" class="text-active-blue hover:underline">
+    Read the XFTP protocol specification →
+  </a>
+</p>
+
+                        </div>
+                    </div>
+                
+
+                
+                    <div class="max-w-[448px]">
+                        <div class="flex items-center justify-center">
+                            <img class="w-full max-w-[448px] min-w-[300px] dark:hidden" src="/img/new/xftp-protocol.svg" alt="">
+                            <img class="w-full max-w-[448px] min-w-[300px] hidden dark:block" src="/img/new/xftp-protocol-dark.svg" alt="">
+                        </div>
+                    </div>
+                
+            </div>
+
+            <svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+                <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z"></path>
+            </svg>
+        </div>
+    </div>
+
+
+
+<script>
+  window.__XFTP_I18N__ = {
+    "title": "SimpleX File Transfer",
+    "dropZone": "Drag & drop a file here",
+    "dropZoneHint": "or",
+    "chooseFile": "Choose file",
+    "maxSizeHint": "Max 100 MB - <a href=\"#join-simplex\">SimpleX Chat app</a> supports files up to 1 GB",
+    "encrypting": "Encrypting…",
+    "uploading": "Uploading…",
+    "cancel": "Cancel",
+    "fileUploaded": "File uploaded",
+    "copy": "Copy",
+    "copied": "Copied!",
+    "share": "Share",
+    "expiryHint": "Files are typically available for 48 hours.",
+    "securityNote1": "Your file was encrypted in the browser - data routers never see file contents, name or size.",
+    "securityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "securityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "retry": "Retry",
+    "downloading": "Downloading…",
+    "decrypting": "Decrypting…",
+    "downloadComplete": "Download complete",
+    "download": "Download",
+    "fileTooLarge": "File too large (%size%). Maximum is 100 MB. The <a href=\"#join-simplex\">SimpleX app</a> supports files up to 1 GB.",
+    "fileEmpty": "File is empty.",
+    "invalidLink": "Invalid or corrupted link.",
+    "initError": "Failed to initialize: %error%",
+    "fileAvailable": "File available (~%size%)",
+    "dlSecurityNote1": "This file is encrypted - data routers never see file contents, name or size.",
+    "dlSecurityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "dlSecurityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "workersRequired": "Web Workers required — update your browser"
+  }
+</script>
+
+<script>
+  // Intercept close for #xftp-protocol to add fade-out animation
+  document.getElementById('xftp-protocol')?.addEventListener('click', function(e) {
+    if (e.target.closest('.close-overlay-btn') || (e.target.closest('.overlay') && !e.target.closest('.overlay-card'))) {
+      e.stopPropagation();
+      var el = document.getElementById('xftp-protocol');
+      el.classList.add('overlay-closing');
+      el.addEventListener('animationend', function handler() {
+        el.removeEventListener('animationend', handler);
+        el.classList.remove('flex', 'overlay-closing');
+        el.classList.add('hidden');
+        document.body.classList.remove('lock-scroll');
+        history.replaceState(null, null, ' ');
+      });
+    }
+  }, true);
+
+  // Hide scroll fade gradient when text bottom is visible (works with column-reverse)
+  var scrollArea = document.querySelector('#xftp-protocol .overlay-card > .flex');
+  if (scrollArea) {
+    var textCol = scrollArea.querySelector(':scope > div:first-child > div');
+    function checkScrollBottom() {
+      if (!textCol) return;
+      var scrollRect = scrollArea.getBoundingClientRect();
+      if (scrollRect.height === 0) return; // not laid out yet
+      var textBottom = textCol.getBoundingClientRect().bottom;
+      document.getElementById('xftp-protocol').classList.toggle('scrolled-bottom', textBottom <= scrollRect.bottom + 10);
+    }
+    scrollArea.addEventListener('scroll', checkScrollBottom);
+    new MutationObserver(function() {
+      if (!document.getElementById('xftp-protocol').classList.contains('hidden')) {
+        requestAnimationFrame(checkScrollBottom);
+      }
+    }).observe(document.getElementById('xftp-protocol'), { attributes: true, attributeFilter: ['class'] });
+  }
+</script>
+
+<div id="address-portability" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Address portability</h1><div class="overlay-content"><p>Similarly to <a href="https://en.wikipedia.org/wiki/Local_number_portability">phone number portability</a> (the ability of the customer to transfer the service to another provider without changing the number), the address portability means the ability of a communication service customer to change the service provider without changing the service address. Many <a href="#federated-network">federated networks</a> support SRV records to provide address portability, but allowing service users to set up their own domains for the addresses is not as commonly supported by the available server and client software as for email.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="federated-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Federated network</h1><div class="overlay-content"><p>Federated network is provided by several entities that agree upon the standards and operate the network collectively. This allows the users to choose their provider, that will hold their account, their messaging history and contacts, and communicate with other providers' servers on behalf of the user. The examples are email, XMPP, Matrix and Mastodon.</p><p>The advantage of that design is that there is no single organization that all users depend on, and the standards are more difficult to change, unless it benefits all users. There are several disadvantages: 1) the innovation is slower, 2) each user account still depends on a single organization, and in most cases can't move to another provider without changing their network address – there is no <a href="#address-portability">address portability</a>, 3) the security and privacy are inevitably worse than with the centralized networks.</p><p><a href="https://en.wikipedia.org/wiki/Federation_(information_technology)">Federation on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="anonymous-credentials" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Anonymous credentials</h1><div class="overlay-content"><p>The credential that allows proving something, e.g. the right to access some resource, without identifying the user. This credential can either be generated by a trusted party or by the user themselves and provided together with the request to create the resource. The first approach creates some centralized dependency in most cases. The second approach does not require any trust - this is used in SimpleX network to authorize access to the messaging queues.</p><p><a href="https://en.wikipedia.org/wiki/Digital_credential">Digital credential on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="blockchain" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Blockchain</h1><div class="overlay-content"><p>In a wide sense, blockchain means a sequence of blocks of data, where each block contains a cryptographic hash of the previous block, thus providing integrity to the whole chain. Blockchains are used in many communication and information storage systems to provide integrity and immutability of the data. For example, BluRay disks use blockchain. SimpleX messaging queues also use blockchain - each message includes the hash of the previous message, to ensure the integrity – if any message is modified it will be detected by the recipient when the next message is received. Blockchains are a subset of <a href="#merkle-directed-acyclic-graph">Merkle directed acyclic graphs</a>.</p><p>In a more narrow sense, particularly in media, blockchain is used to refer specifically to distributed ledger, where each record also includes the hash of the previous record, but the blocks have to be agreed by the participating peers using some <a href="https://en.wikipedia.org/wiki/Consensus_(computer_science)">consensus protocol</a>.</p><p><a href="https://en.wikipedia.org/wiki/Blockchain">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="merkle-directed-acyclic-graph" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Merkle directed acyclic graph</h1><div class="overlay-content"><p>Also known as Merkle DAG, a data structure based on a general graph structure where node contains the cryptographic hashes of the previous nodes that point to it. Merkle trees are a subset of Merkle DAGs - in this case each leaf contains a cryptographic hash of the parent.</p><p>This structure by design allows to verify the integrity of the whole structure by computing its hashes and comparing with the hashes included in the nodes, in the same way as with <a href="#blockchain">blockchain</a>.</p><p>The motivation to use DAG in distributed environments instead of a simpler linear blockchain is to allow concurrent additions, when there is no requirement for a single order of added items. Merkle DAG is used, for example, in <a href="https://en.wikipedia.org/wiki/InterPlanetary_File_System">IPFS</a> and will be used in decentralized SimpleX groups.</p><p><a href="https://en.wikipedia.org/wiki/Merkle_tree">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="break-in-recovery" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Break-in recovery</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="double-ratchet-algorithm" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Double ratchet algorithm</h1><div class="overlay-content"><p>It is used by two parties to exchange <a href="#end-to-end-encryption">end-to-end encrypted</a> messages. The parties will use some <a href="#key-agreement-protocol">key agreement protocol</a> to agree on the initial shared secret key.</p><p>Double Ratchet algorithm provides <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>. It is <a href="https://signal.org/docs/specifications/doubleratchet">designed by Signal</a>, and used in SimpleX Chat and many other secure messengers. Most experts consider it the state-of-the-art encryption protocol in message encryption.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="centralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Centralized network</h1><div class="overlay-content"><p>Centralized networks are provided or controlled by a single entity. The examples are Threema, Signal, WhatsApp and Telegram. The advantage of that design is that the provider can innovate faster, and has a centralized approach to security. But the disadvantage is that the provider can change or discontinue the service, and leak, sell or disclose in some other way all users' data, including who they are connected with.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="content-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Content padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="decentralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Decentralized network</h1><div class="overlay-content"><p>Decentralized network is often used to mean "the network based on decentralized blockchain". In its original meaning, decentralized network means that there is no central authority or any other point of centralization in the network, other than network protocols specification. The advantage of decentralized networks is that they are resilient to censorship and to the provider going out of business. The disadvantage is that they are often slower to innovate, and the security may be worse than with the centralized network.</p><p>The examples of decentralized networks are email, web, DNS, XMPP, Matrix, BitTorrent, etc. All these examples have a shared global application-level address space. Cryptocurrency blockchains not only have a shared address space, but also a shared state, so they are more centralized than email. Tor network also has a shared global address space, but also a central authority. SimpleX network does not have a shared application-level address space (it relies on the shared transport-level addresses - SMP relay hostnames or IP addresses), and it does not have any central authority or any shared state.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="defense-in-depth" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Defense in depth</h1><div class="overlay-content"><p>Originally, it is a military strategy that seeks to delay rather than prevent the advance of an attacker, buying time and causing additional casualties by yielding space.</p><p>In information security, defense in depth represents the use of multiple computer security techniques to help mitigate the risk of one component of the defense being compromised or circumvented. An example could be anti-virus software installed on individual workstations when there is already virus protection on the firewalls and servers within the same environment.</p><p>SimpleX network applies defense in depth approach to security by having multiple layers for the communication security and privacy:</p><ul>
+<li>double ratchet algorithm for <a href="#end-to-end-encryption">end-to-end encryption</a> with <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>,</li>
+<li>additional layer of end-to-end encryption for each messaging queue and another encryption layer of encryption from the server to the recipient inside TLS to prevent correlation by ciphertext,</li>
+<li>TLS with only strong ciphers allowed,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-server connection via server offline certificate verification,</li>
+<li>mitigation of replay attacks via signing over transport channel binding,</li>
+<li>multiple layers of <a href="#message-padding">message padding</a> to reduce efficiency of traffic analysis,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-client out-of-band channel when sending the invitation,</li>
+<li>rotation of delivery queues to reduce efficiency of traffic analysis,</li>
+<li>etc.</li>
+</ul><p><a href="https://en.wikipedia.org/wiki/Defence_in_depth">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="end-to-end-encryption" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">End-to-end encryption</h1><div class="overlay-content"><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><p>End-to-end encryption requires agreeing cryptographic keys between the sender and the recipient in a way that no eavesdroppers can access the agreed keys. See <a href="#key-agreement-protocol">key agreement protocol</a>. This key exchange can be compromised via <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>, particularly if key exchange happens via the same communication provider and no out-of-band channel is used to verify key exchange.</p><p><a href="https://en.wikipedia.org/wiki/End-to-end_encryption">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-compromise-security" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-compromise security</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="man-in-the-middle-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Man-in-the-middle attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="message-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Message padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="key-agreement-protocol" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key agreement protocol</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="tooltip-end-to-end-encryption" class="glossary-tooltip"><div class="tooltip-content"><h4 class="tooltip-title">End-to-end encryption</h4><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><button class="read-more-btn open-overlay-btn" data-show-overlay="end-to-end-encryption">Read more</button></div></div><div id="key-exchange" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key exchange</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="mitm-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">MITM attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="non-repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Non-repudiation</h1><div class="overlay-content">Non-repudiation</div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="onion-routing" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Onion routing</h1><div class="overlay-content"><p>A technique for anonymous communication over a computer network that uses multiple layers of message encryption, analogous to the layers of an onion. The encrypted data is transmitted through a series of network nodes called "onion routers," each of which "peels" away a single layer, revealing the data's next destination. The sender remains anonymous because each intermediary knows only the location of the immediately preceding and following nodes.</p><p>The most widely used onion network is <a href="https://en.wikipedia.org/wiki/Tor_(network)">Tor</a>.</p><p>Some elements of SimpleX network use similar ideas in their design - different addresses for the same resource used by different parties, and additional encryption layers. Currently though, SimpleX messaging protocol does not protect sender network address, as the relay server is chosen by the recipient. The delivery relays chosen by sender that are planned for the future would make SimpleX design closer to onion routing.</p><p><a href="https://en.wikipedia.org/wiki/Onion_routing">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="overlay-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Overlay network</h1><div class="overlay-content"><p>Nodes in the overlay network can be thought of as being connected by virtual or logical links, each of which corresponds to a path, perhaps through many physical links, in the underlying network. Tor, for example, is an overlay network on top of IP network, which in its turn is also an overlay network over some underlying physical network.</p><p>SimpleX Clients also form a network using SMP relays and IP or some other overlay network (e.g., Tor), to communicate with each other. SMP relays, on another hand, do not form a network.</p><p><a href="https://en.wikipedia.org/wiki/Overlay_network">Wikipedia</a></p><h1>Non-repudiation</h1><p>The property of the cryptographic or communication system that allows the recipient of the message to prove to any third party that the sender identified by some cryptographic key sent the message. It is the opposite to <a href="#repudiation">repudiation</a>. While in some context non-repudiation may be desirable (e.g., for contractually binding messages), in the context of private communications it may be undesirable.</p><p><a href="https://en.wikipedia.org/wiki/Non-repudiation">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Repudiation</h1><div class="overlay-content"><p>The property of the cryptographic or communication system that allows the sender of the message to plausibly deny having sent the message, because while the recipient can verify that the message was sent by the sender, they cannot prove it to any third party - the recipient has a technical ability to forge the same encrypted message. This is an important quality of private communications, as it allows to have the conversation that can later be denied, similarly to having a private face-to-face conversation.</p><p>See also <a href="#non-repudiation">non-repudiation</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="pairwise-pseudonymous-identifier" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Pairwise pseudonymous identifier</h1><div class="overlay-content"><p>Generalizing <a href="https://csrc.nist.gov/glossary/term/pairwise_pseudonymous_identifier">the definition</a> from NIST Digital Identity Guidelines, it is an opaque unguessable identifier generated by a service used to access a resource by only one party.</p><p>In the context of SimpleX network, these are the identifiers generated by SMP relays to access anonymous messaging queues, with a separate identifier (and access credential) for each accessing party: recipient, sender and and optional notifications subscriber. The same approach is used by XFTP relays to access file chunks, with separate identifiers (and access credentials) for sender and each recipient.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Peer-to-peer</h1><div class="overlay-content"><p>Peer-to-peer (P2P) is the network architecture when participants have equal rights and communicate directly via a general purpose transport or overlay network. Unlike client-server architecture, all peers in a P2P network both provide and consume the resources. In the context of messaging, P2P architecture usually means that the messages are sent between peers, without user accounts or messages being stored on any servers. Examples are Tox, Briar, Cwtch and many others.</p><p>The advantage is that the participants do not depend on any servers. There are <a href="./SIMPLEX.md#comparison-with-p2p9-messaging-protocols">multiple downsides</a> to that architecture, such as no asynchronous message delivery, the need for network-wide peer addresses, possibility of network-wide attacks, that are usually mitigated only by using a centralized authority. These disadvantages are avoided with <a href="#proxied-peer-to-peer">proxied P2P</a> architecture.</p><p><a href="https://en.wikipedia.org/wiki/Peer-to-peer">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="proxied-peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Proxied peer-to-peer</h1><div class="overlay-content"><p>Network topology of the communication system when peers communicate via proxies that do not form the network themselves. Such design is used in Pond, that has a fixed home server for each user, and in SimpleX, that uses multiple relays providing temporary connections.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="perfect-forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Perfect forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-cryptography" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum cryptography</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-hybrid-crypto" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum hybrid crypto</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="recovery-from-compromise" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Recovery from compromise</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="user-identity" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">User identity</h1><div class="overlay-content"><p>In a communication system it refers to anything that uniquely identifies the users to the network. Depending on the communication network, it can be a phone number, email address, username, public key or a random opaque identifier. Most messaging networks rely on some form of user identity. SimpleX appears to be the only messaging network that does not rely on any kind of user identity - see <a href="https://en.wikipedia.org/wiki/Comparison_of_instant_messaging_protocols">this comparison</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div></body></html>
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+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            Privacybeleid
+                        </a>
+                        <a href="/jobs/"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            Sluit je aan bij het team
+                        </a>
+                        <a href="https://github.com/simplex-chat/simplex-chat#please-support-us-with-your-donations"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            Doneer
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                    </div>
+                    <div class="flex flex-col items-center lg:items-start">
+                        <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            SimpleX Whitepaper
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                        <a href="https://github.com/simplex-chat/simplex-chat/blob/stable/docs/protocol/simplex-chat.md"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            SimpleX Chat protocol
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                        <a href="https://github.com/simplex-chat/simplex-chat/blob/stable/docs/CLI.md"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            Terminal CLI
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                        <a href="https://github.com/simplex-chat/simplex-chat/tree/stable/bots"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            SimpleX bots API
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                    </div>
+                </div>
+            </div>
+
+            <article class="mt-10 lg:mt-0">
+                <div class="h-[40px] flex flex-col gap-2 justify-center">
+                    <div class="flex gap-2 justify-center">
+                        <a href="https://simplex.chat/contact#/?v=1&smp=smp%3A%2F%2FPQUV2eL0t7OStZOoAsPEV2QYWt4-xilbakvGUGOItUo%3D%40smp6.simplex.im%2FK1rslx-m5bpXVIdMZg9NLUZ_8JBm8xTt%23%2F%3Fv%3D1%26dh%3DMCowBQYDK2VuAyEALDeVe-sG8mRY22LsXlPgiwTNs9dbiLrNuA7f3ZMAJ2w%253D%26srv%3Dbylepyau3ty4czmn77q4fglvperknl4bi2eb2fdy2bh4jxtf32kf73yd.onion">
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+                            </svg>
+                        </a>
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+    </div>
+</section>
+
+
+        <script src="/js/swiper-bundle.min.js"></script>
+        <script src="/js/script.js"></script>
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diff --git a/nl/index.html b/nl/index.html
index 232e576f9c..925b443ec8 100644
--- a/nl/index.html
+++ b/nl/index.html
@@ -153,6 +153,8 @@
                 </a>
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diff --git a/nl/invitation/index.html b/nl/invitation/index.html
index 232bc4403f..a35cf0a1c4 100644
--- a/nl/invitation/index.html
+++ b/nl/invitation/index.html
@@ -133,6 +133,8 @@
                 </a>
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+            
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diff --git a/nl/messaging/index.html b/nl/messaging/index.html
index e5bd41927b..2ce4dafc42 100644
--- a/nl/messaging/index.html
+++ b/nl/messaging/index.html
@@ -133,6 +133,8 @@
                 </a>
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+            
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diff --git a/nl/old/index.html b/nl/old/index.html
index 6efad2a433..1d300efbc4 100644
--- a/nl/old/index.html
+++ b/nl/old/index.html
@@ -133,6 +133,8 @@
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diff --git a/nl/why/index.html b/nl/why/index.html
index d4119993be..27796a6635 100644
--- a/nl/why/index.html
+++ b/nl/why/index.html
@@ -133,6 +133,8 @@
                 </a>
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diff --git a/old/index.html b/old/index.html
index af9a8ac720..1b0608991b 100644
--- a/old/index.html
+++ b/old/index.html
@@ -133,6 +133,8 @@
                 </a>
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diff --git a/pl/contact/index.html b/pl/contact/index.html
index 32e8877280..41c00b53b8 100644
--- a/pl/contact/index.html
+++ b/pl/contact/index.html
@@ -133,6 +133,8 @@
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index e1beb5dcfc..48e71b8c06 100644
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+++ b/pl/fdroid/index.html
@@ -133,6 +133,8 @@
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diff --git a/pl/file/index.html b/pl/file/index.html
new file mode 100644
index 0000000000..3a674d7aef
--- /dev/null
+++ b/pl/file/index.html
@@ -0,0 +1,888 @@
+<!DOCTYPE html>
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+    
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+    >
+    <head>
+        <meta charset="UTF-8">
+        <meta http-equiv="X-UA-Compatible" content="IE=edge">
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        <title>SimpleX File Transfer</title>
+        <meta name="description" content="Send files securely with end-to-end encryption"/>
+        <meta name="Content-Type" content="text/html;charset=utf-8"/>
+        
+        <meta http-equiv="onion-location" content="http://isdb4l77sjqoy2qq7ipum6x3at6hyn3jmxfx4zdhc72ufbmuq4ilwkqd.onion/" />
+        <meta property="og:url" content="https://simplex.chat/" />
+        
+        <meta property="og:type" content="website"/>
+        <meta property="og:title" content="SimpleX File Transfer"/>
+        <meta property="og:description" content="Send files securely with end-to-end encryption"/>
+        <meta property="og:image" content="https://simplex.chat/img/share_simplex.jpg"/>
+        <meta name="twitter:card" content="summary"/>
+        <link rel="icon" type="image/png" sizes="96x96" href="/img/favicon.ico"/>
+
+        <link rel="stylesheet" href="/css/swiper-bundle.min.css">
+        <link rel="stylesheet" href="/css/blog.css">
+        <link href="/css/tailwind.css" rel="stylesheet"/>
+        <link rel="stylesheet" href="/css/style.css">
+        <link rel="stylesheet" href="/css/design3-nav.css">
+        <script async defer src="https://buttons.github.io/buttons.js"></script>
+        <script src="/js/flag-anchor.js"></script>
+        
+    </head>
+    <body class="bg-[#F3FAFF] dark:bg-[#000832]">
+        
+
+
+    
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+    
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+    
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+    
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+    
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+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+        
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+
+<header id="navbar">
+    <a href="/pl" class="logo logo-light ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-light.png" alt="logo"></a>
+    <a href="/pl" class="logo logo-dark ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-dark.png" alt="logo"></a>
+
+    <nav id="menu">
+        <ul>
+            <li class="nav-link ">
+                <a href="/pl">
+                    <span class="nav-link-text">Strona główna</span>
+                </a>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/directory/">
+                    <span class="nav-link-text">Katalog</span>
+                </a>
+            </li>
+
+            
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">Przewodnik</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    
+                        <li><a href="/docs/guide/readme.html" class="">Szybki start</a></li>
+                    
+                        <li><a href="/docs/guide/send-messages.html" class="">Wysyłanie wiadomości</a></li>
+                    
+                        <li><a href="/docs/guide/secret-groups.html" class="">Tajne grupy</a></li>
+                    
+                        <li><a href="/docs/guide/chat-profiles.html" class="">Profile czatu</a></li>
+                    
+                        <li><a href="/docs/guide/managing-data.html" class="">Zarządzanie danymi</a></li>
+                    
+                        <li><a href="/docs/guide/audio-video-calls.html" class="">Połączenia audio i wideo</a></li>
+                    
+                        <li><a href="/docs/guide/privacy-security.html" class="">Prywatność i bezpieczeństwo</a></li>
+                    
+                        <li><a href="/docs/guide/app-settings.html" class="">Ustawienia aplikacji</a></li>
+                    
+                        <li><a href="/docs/guide/making-connections.html" class="">Nawiązywanie połączeń</a></li>
+                    
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">Odnośniki</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md"
+                        target="_blank">Whitepaper
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/privacy">Polityka prywatności</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/simplex-messaging.md"
+                        target="_blank">Protokół SMP
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/protocol/simplex-chat.html">Protokół czatu</a></li>
+                    <li><a href="/docs/glossary.html">Słowniczek</a></li>
+
+                    <hr>
+
+                    
+                        <li><a href="/docs/simplex.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Sieć SimpleX</a></li>
+                    
+                        <li><a href="/docs/business.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX dla firm</a></li>
+                    
+                        <li><a href="/docs/directory.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Katalog SimpleX</a></li>
+                    
+                        <li><a href="/docs/android.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Dostęp do plików Androida</a></li>
+                    
+                        <li><a href="/docs/server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Hostuj serwer SMP</a></li>
+                    
+                        <li><a href="/docs/xftp-server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Hostuj serwer XFTP</a></li>
+                    
+                        <li><a href="/docs/webrtc.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Serwery WebRTC</a></li>
+                    
+                        <li><a href="/downloads/" class=" lg:px-[20px] inline-block whitespace-nowrap">Pliki do pobrania</a></li>
+                    
+                        <li><a href="/reproduce/" class=" lg:px-[20px] inline-block whitespace-nowrap">Verify & reproduce builds</a></li>
+                    
+                        <li><a href="/transparency/" class=" lg:px-[20px] inline-block whitespace-nowrap">Przezroczystość</a></li>
+                    
+                        <li><a href="/security/" class=" lg:px-[20px] inline-block whitespace-nowrap">Bezpieczeństwo</a></li>
+                    
+                        <li><a href="/faq/" class=" lg:px-[20px] inline-block whitespace-nowrap">Często zadawane pytania</a></li>
+                    
+
+                    <hr>
+
+                    <li><a href="/docs/translations.html"
+                    >Przetłumacz SimpleX Chat
+                    </a></li>
+                    <li><a href="/docs/android.html"
+                    >Dostęp do plików Androida
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/blob/stable/apps/simplex-bot-advanced/Main.hs"
+                        target="_blank">Przykładowy chatbot
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/tree/stable/packages/simplex-chat-client/typescript"
+                        target="_blank">TypeScript SDK
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/cli.html">Terminal CLI</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq"
+                        target="_blank">SimpleXMQ
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/blog">
+                    <span class="nav-link-text">Blog</span>
+                </a>
+            </li>
+        </ul>
+    </nav>
+
+    <div class="right-links">
+        
+            <a class="box-btn token md:hidden" href="/donate">
+                Darowizna
+            </a>
+        
+        <button href="#" class="theme-switch-btn">
+            <svg class="sun" width="469" height="469" viewBox="0 0 469 469" fill="none" xmlns="http://www.w3.org/2000/svg">
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+            </svg>
+
+            <svg class="moon" width="469" height="469" viewBox="5 5 20 23" xmlns="http://www.w3.org/2000/svg">
+                <path d="M10.895 7.574c0 7.55 5.179 13.67 11.567 13.67 1.588 0 3.101-0.38 4.479-1.063-1.695 4.46-5.996 7.636-11.051 7.636-6.533 0-11.83-5.297-11.83-11.83 0-4.82 2.888-8.959 7.023-10.803-0.116 0.778-0.188 1.573-0.188 2.39z"></path>
+            </svg>
+        </button>
+
+        
+
+        <button id="cross-btn" class="nav-toggle-btn">
+            <svg id="cross" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+            <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z" />
+        </svg>
+        </button>
+    </div>
+</header>
+<div id="mobile-header">
+    <a href="/pl" class="logo flex dark:hidden ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-light.svg" alt="" srcset=""></a>
+    <a href="/pl" class="logo hidden dark:flex ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-dark.svg" alt="" srcset=""></a>
+
+    <button id="hamburger" class="nav-toggle-btn">
+        <svg viewBox="0 0 100 80" width="36" height="36">
+            <rect width="100" height="15"></rect>
+            <rect y="30" width="100" height="15"></rect>
+            <rect y="60" width="100" height="15"></rect>
+        </svg>
+    </button>
+</div>
+
+
+<script>
+// switch theme
+const sunIcon = document.querySelector('.sun');
+const moonIcon = document.querySelector('.moon');
+
+const userTheme = localStorage.getItem('theme');
+const systemTheme = window.matchMedia('(prefers-color-scheme: dark)').matches;
+const prismThemeLink = document.getElementById('prism-theme')
+
+function iconToggle () {
+    sunIcon.classList.toggle('hidden');
+    moonIcon.classList.toggle('hidden');
+}
+
+function themeCheck() {
+    if (userTheme === 'dark' || (!userTheme && systemTheme)) {
+        document.documentElement.classList.add('dark');
+        moonIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+    }
+    else{
+        sunIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+    }
+}
+themeCheck();
+
+function themeSwitch () {
+    if (document.documentElement.classList.contains('dark')) {
+        document.documentElement.classList.remove('dark');
+        localStorage.setItem('theme', 'light');
+        if(prismThemeLink){
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+        iconToggle();
+    } else {
+        document.documentElement.classList.add('dark');
+        localStorage.setItem('theme', 'dark');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+        iconToggle();
+    }
+}
+
+const nav = document.querySelector('header#navbar');
+
+window.addEventListener('click',(e)=>{
+    if(e.target.closest('.nav-link')){
+        if(e.target.closest('.nav-link').classList.contains('active')){
+            e.target.closest('.nav-link').classList.remove('active');
+        }
+        else{
+            document.querySelectorAll('.nav-link').forEach(el => el.classList.remove('active'))
+            e.target.closest('.nav-link').classList.add('active');
+        }
+    }
+    else if(e.target.closest('.nav-toggle-btn')){
+        if(nav.classList.contains('open')){
+            nav.classList.remove('open');
+            document.getElementById('mobile-header').classList.remove('nav-open');
+            document.documentElement.classList.remove('lock-scroll');
+        }
+        else{
+            document.documentElement.classList.add('lock-scroll');
+            document.getElementById('mobile-header').classList.add('nav-open');
+            nav.classList.add('open');
+        }
+    }
+    else if(e.target.closest('.theme-switch-btn')){
+        themeSwitch();
+    }
+});
+</script>
+
+        <html><head><link rel="stylesheet" href="/file-assets/index.css">
+<style>
+  /* Reset website .card styles that conflict with xftp bundle */
+  #app .card { cursor: default; }
+  #app .card,
+  #app .card > div { transition: unset; height: auto; }
+  #app .card > div > * { opacity: unset; max-height: unset; transform: unset; transition: unset; }
+
+  /* Align xftp bundle with website design */
+  #app { font-family: inherit; color: #3F484B; max-width: 600px; width: 100%; margin: 0 auto; padding: 0; }
+  #app .card { background: transparent; box-shadow: none; padding: 0; border-radius: 0; }
+  #app .card > h1 { display: none; }
+  .dark #app h1 { color: #fff; }
+  #app .drop-zone { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; }
+  #app .drop-zone.drag-over { border-color: #0053D0; background: #DBEEFF; }
+  #app .btn { background: #0053D0; border-radius: 34px; padding: 12px 32px; font-size: .9rem; font-weight: 600; }
+  #app .btn:hover { background: #1661D1; }
+  #app .btn-secondary { background: #6b7280; border-radius: 34px; }
+  #app .hint { color: #6b7280; }
+  #app .link-row input { border-radius: 8px; border-color: #c5d3de; }
+  #app .security-note { background: #ffffff; border-radius: 12px; color: #3F484B; }
+  #app .security-note a { color: #0197FF; }
+  #app .success { color: #0053D0; }
+
+  .dark #app { color: #e5e7eb; }
+  .dark #app .card { background: transparent; box-shadow: none; }
+  .dark #app .drop-zone { border-color: #374151; }
+  .dark #app .drop-zone.drag-over { border-color: #70F0F9; background: #1B325C; }
+  .dark #app .btn { background: #70F0F9; color: #000832; }
+  .dark #app .btn:hover { background: #66D9E2; }
+  .dark #app .link-row input { border-color: #374151; background: #071C46; color: #e5e7eb; }
+  .dark #app .security-note { background: #0B2A59; color: #d1d5db; }
+  .dark #app .security-note a { color: #70F0F9; }
+  .dark #app .success { color: #70F0F9; }
+
+  #app #upload-error { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; text-align: center; }
+  .dark #app #upload-error { border-color: #374151; }
+
+  #app .stage > .btn { margin-top: 20px; }
+  #app .security-note { margin-top: 20px; }
+  #app .drop-zone .btn { margin: 10px 0 16px; }
+
+  /* Protocol overlay: image fixed, text scrolls natively */
+  /* Push popup below navbar at all widths */
+  #xftp-protocol { padding-top: 70px; }
+  #xftp-protocol .overlay-card {
+    display: flex;
+    flex-direction: column;
+    position: relative;
+    overflow: hidden;
+  }
+  @media (min-width: 768px) {
+    #xftp-protocol .overlay-card { max-height: min(660px, 100%); }
+  }
+  #xftp-protocol .overlay-card > h1 {
+    flex-shrink: 0;
+    padding-bottom: 16px;
+    margin-bottom: 0;
+    z-index: 1;
+  }
+  @media (min-width: 1024px) and (max-height: 750px) {
+    #xftp-protocol .overlay-card > h1 {
+      font-size: 22px;
+    }
+  }
+  /* .flex is the full-width scroll container */
+  #xftp-protocol .overlay-card > .flex {
+    flex: 1;
+    min-height: 0;
+    overflow-y: auto;
+    scrollbar-width: thin;
+    scrollbar-color: #c5d3de transparent;
+  }
+  .dark #xftp-protocol .overlay-card > .flex {
+    scrollbar-color: #374151 transparent;
+  }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar { width: 6px; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-track { background: transparent; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #c5d3de; border-radius: 3px; }
+  .dark #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #374151; }
+  /* Desktop: text stays left, image fixed on right */
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card > .flex > div:first-child {
+      max-width: 50%;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child {
+      position: absolute;
+      right: 56px;
+      top: 0;
+      bottom: 0;
+      left: 55%;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      pointer-events: none;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child > div {
+      height: 100%;
+      padding: 40px 0;
+      box-sizing: border-box;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child img {
+      height: 100%;
+    }
+  }
+  #xftp-protocol .close-overlay-btn {
+    position: absolute;
+    top: 24px;
+    right: 24px;
+    cursor: pointer;
+    z-index: 3;
+    fill: #606C71;
+  }
+  .dark #xftp-protocol .close-overlay-btn { fill: #e5e7eb; }
+  /* Scroll fade: gradient over text area only, hidden at bottom */
+  #xftp-protocol .overlay-card::after {
+    content: '';
+    position: absolute;
+    bottom: 40px;
+    left: 24px;
+    right: 24px;
+    height: 48px;
+    background: linear-gradient(rgba(255,255,255,0), #fff);
+    pointer-events: none;
+    z-index: 2;
+    transition: opacity 0.2s;
+  }
+  .dark #xftp-protocol .overlay-card::after {
+    background: linear-gradient(rgba(7,28,70,0), #071C46);
+  }
+  @media (min-width: 640px) {
+    #xftp-protocol .overlay-card::after { bottom: 56px; left: 56px; right: 56px; }
+  }
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card::after { right: 55%; }
+  }
+  #xftp-protocol.scrolled-bottom .overlay-card::after { opacity: 0; }
+  #xftp-protocol .overlay-card.flex,
+  #xftp-protocol.flex .overlay-card { animation: overlaySlideIn 0.25s ease-out; }
+  @keyframes overlaySlideIn {
+    from { opacity: 0; transform: scale(0.95) translateY(10px); }
+    to { opacity: 1; transform: scale(1) translateY(0); }
+  }
+  #xftp-protocol.overlay-closing { animation: overlayFadeOut 0.2s ease-in forwards; }
+  #xftp-protocol.overlay-closing .overlay-card { animation: overlaySlideOut 0.2s ease-in forwards; }
+  @keyframes overlayFadeOut {
+    from { opacity: 1; }
+    to { opacity: 0; }
+  }
+  @keyframes overlaySlideOut {
+    from { opacity: 1; transform: scale(1) translateY(0); }
+    to { opacity: 0; transform: scale(0.95) translateY(10px); }
+  }
+
+  .file-proto-link {
+    font-size: 1.25rem;
+    font-weight: 600;
+    background: linear-gradient(90deg, #001aa7 0%, #0095e7 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+    text-decoration: none;
+  }
+  .dark .file-proto-link {
+    background: linear-gradient(90deg, #019bfe 0%, #64fdff 58%, #c8feff 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+  }
+
+</style>
+
+</head><body><section class="bg-secondary-bg-light dark:bg-primary-bg-dark py-10 mt-[66px] px-5">
+  <div class="container flex flex-col items-center mx-auto">
+    <noscript>
+      <p class="text-center text-grey-black dark:text-white py-10">
+        JavaScript is required for file transfer.
+      </p>
+    </noscript>
+    <h1 class="text-[38px] text-center font-bold text-active-blue mb-8">SimpleX File Transfer</h1>
+    <div id="app" data-xftp-app="" data-no-hashchange="" class="w-full">
+      <div class="card">
+        <div class="drop-zone">
+          <p>Drag &amp; drop a file here</p>
+          <p class="hint">or</p>
+          <span class="btn">Choose file</span>
+          <p class="hint">Max 100 MB - <a href="#join-simplex">SimpleX Chat app</a> supports files up to 1 GB</p>
+        </div>
+      </div>
+    </div>
+    <template id="dl-placeholder">
+      <div class="card">
+        <h1>SimpleX File Transfer</h1>
+        <div class="stage">
+          <p>File available</p>
+          <button class="btn">Download</button>
+          <div class="security-note">
+            <p>This file is encrypted - data routers never see file contents, name or size.</p>
+            <p>The encryption key is in the link’s hash fragment - it is never sent to any server.</p>
+            <p>For better security, use <a href="https://simplex.chat/download">SimpleX Chat</a> app.</p>
+          </div>
+        </div>
+      </div>
+    </template>
+    <script>if(location.hash.length>50){var a=document.getElementById("app"),t=document.getElementById("dl-placeholder");if(a&&t)a.replaceChildren(t.content.cloneNode(true))}</script>
+    <script type="module" src="/file-assets/index.js"></script>
+
+    <p class="text-base text-center text-grey-black dark:text-white mt-10 max-w-[600px]">Send files securely with <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span> — no accounts, no tracking.</p>
+    <a href="javascript:void(0)" data-show-overlay="xftp-protocol" class="open-overlay-btn file-proto-link mt-3 block text-center">Learn more about XFTP protocol</a>
+  </div>
+</section>
+
+<section class="bg-primary-bg-light dark:bg-secondary-bg-dark py-[90px] px-5">
+  <div class="container flex flex-col items-center mx-auto text-center">
+    <h2 class="text-[35px] leading-[45px] md:text-[45px] md:leading-[55px] text-grey-black dark:text-white font-bold mb-5">
+      Get SimpleX Chat — the most secure &amp; private messenger
+    </h2>
+    <p class="text-base text-grey-black dark:text-white mb-14 max-w-[600px]">
+      The file transfer you just used uses the same data routing protocol as SimpleX Chat. The app has end-to-end encrypted messaging, voice and video calls, groups, and sending files. No account. No phone. No email. No user profile IDs.
+    </p>
+    <div class="flex items-center justify-center gap-4 flex-wrap">
+      <a href="https://apps.apple.com/us/app/simplex-chat/id1605771084" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apple_store.svg"></a>
+      <a href="https://play.google.com/store/apps/details?id=chat.simplex.app" target="_blank"><img class="h-[40px] w-auto" src="/img/new/google_play.svg"></a>
+      <a href="/pl/fdroid"><img class="h-[40px] w-auto" src="/img/new/f_droid.svg"></a>
+      <a href="https://testflight.apple.com/join/DWuT2LQu" target="_blank"><img class="h-[40px] w-auto" src="/img/new/testflight.png"></a>
+      <a href="https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-aarch64.apk" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apk_icon.png"></a>
+    </div>
+  </div>
+</section>
+
+
+  
+    
+    <div id="xftp-protocol" data-scroll-to="" class="overlay hidden fixed top-0 left-0 bottom-0 right-0 before:absolute before:w-full before:h-full bg-transparent before:bg-secondary-bg-light dark:before:bg-primary-bg-dark before:opacity-90 items-center justify-center p-3 md:p-10 z-[10000]">
+        <div class="overlay-card w-full md:w-fit md:max-w-[1276px] bg-white dark:bg-card-bg-dark opacity-100 h-full md:h-fit md:max-h-[660px] z-[10001] rounded-md shadow-[0px_3px_12px_rgba(0,0,0,0.2)] p-6 py-10 sm:p-14 overflow-auto scale-100">
+            <h1 class="text-3xl font-bold text-active-blue mb-6 ">XFTP protocol: the most secure file transfer</h1>
+            <div class="flex flex-col-reverse lg:flex-row gap-10 justify-between">
+                
+                    <div class="lg:max-w-[448px]">
+                        <div class="text-grey-black dark:text-white flex flex-col gap-6 text-base">
+                            <div>
+  <h3 class="font-bold text-lg mb-2">No account required</h3>
+  <p>Each file fragment uses a new random key. Data routers have no "users" or "files" - they transfer encrypted file fragments of fixed sizes.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Triple-encrypted in your browser</h3>
+  <p>File encryption key is present only in the URL hash fragment - your browser never sends it to a server. There are 3 encryption layers: TLS transport, per-recipient encryption (unique ephemeral key per transfer), and file <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span>.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Independent data routers</h3>
+  <p>When file is split to fragments, it is sent via network routers operated by independent parties. No operator can see the actual file size or name. Even if a router is compromised, it can only see encrypted fragments of fixed size. File fragments are cached by network routers for approximately 48 hours.</p>
+</div>
+<p class="mt-4">
+  <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/xftp.md" target="_blank" rel="noopener" class="text-active-blue hover:underline">
+    Read the XFTP protocol specification →
+  </a>
+</p>
+
+                        </div>
+                    </div>
+                
+
+                
+                    <div class="max-w-[448px]">
+                        <div class="flex items-center justify-center">
+                            <img class="w-full max-w-[448px] min-w-[300px] dark:hidden" src="/img/new/xftp-protocol.svg" alt="">
+                            <img class="w-full max-w-[448px] min-w-[300px] hidden dark:block" src="/img/new/xftp-protocol-dark.svg" alt="">
+                        </div>
+                    </div>
+                
+            </div>
+
+            <svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+                <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z"></path>
+            </svg>
+        </div>
+    </div>
+
+
+
+<script>
+  window.__XFTP_I18N__ = {
+    "title": "SimpleX File Transfer",
+    "dropZone": "Drag & drop a file here",
+    "dropZoneHint": "or",
+    "chooseFile": "Choose file",
+    "maxSizeHint": "Max 100 MB - <a href=\"#join-simplex\">SimpleX Chat app</a> supports files up to 1 GB",
+    "encrypting": "Encrypting…",
+    "uploading": "Uploading…",
+    "cancel": "Cancel",
+    "fileUploaded": "File uploaded",
+    "copy": "Copy",
+    "copied": "Copied!",
+    "share": "Share",
+    "expiryHint": "Files are typically available for 48 hours.",
+    "securityNote1": "Your file was encrypted in the browser - data routers never see file contents, name or size.",
+    "securityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "securityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "retry": "Retry",
+    "downloading": "Downloading…",
+    "decrypting": "Decrypting…",
+    "downloadComplete": "Download complete",
+    "download": "Download",
+    "fileTooLarge": "File too large (%size%). Maximum is 100 MB. The <a href=\"#join-simplex\">SimpleX app</a> supports files up to 1 GB.",
+    "fileEmpty": "File is empty.",
+    "invalidLink": "Invalid or corrupted link.",
+    "initError": "Failed to initialize: %error%",
+    "fileAvailable": "File available (~%size%)",
+    "dlSecurityNote1": "This file is encrypted - data routers never see file contents, name or size.",
+    "dlSecurityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "dlSecurityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "workersRequired": "Web Workers required — update your browser"
+  }
+</script>
+
+<script>
+  // Intercept close for #xftp-protocol to add fade-out animation
+  document.getElementById('xftp-protocol')?.addEventListener('click', function(e) {
+    if (e.target.closest('.close-overlay-btn') || (e.target.closest('.overlay') && !e.target.closest('.overlay-card'))) {
+      e.stopPropagation();
+      var el = document.getElementById('xftp-protocol');
+      el.classList.add('overlay-closing');
+      el.addEventListener('animationend', function handler() {
+        el.removeEventListener('animationend', handler);
+        el.classList.remove('flex', 'overlay-closing');
+        el.classList.add('hidden');
+        document.body.classList.remove('lock-scroll');
+        history.replaceState(null, null, ' ');
+      });
+    }
+  }, true);
+
+  // Hide scroll fade gradient when text bottom is visible (works with column-reverse)
+  var scrollArea = document.querySelector('#xftp-protocol .overlay-card > .flex');
+  if (scrollArea) {
+    var textCol = scrollArea.querySelector(':scope > div:first-child > div');
+    function checkScrollBottom() {
+      if (!textCol) return;
+      var scrollRect = scrollArea.getBoundingClientRect();
+      if (scrollRect.height === 0) return; // not laid out yet
+      var textBottom = textCol.getBoundingClientRect().bottom;
+      document.getElementById('xftp-protocol').classList.toggle('scrolled-bottom', textBottom <= scrollRect.bottom + 10);
+    }
+    scrollArea.addEventListener('scroll', checkScrollBottom);
+    new MutationObserver(function() {
+      if (!document.getElementById('xftp-protocol').classList.contains('hidden')) {
+        requestAnimationFrame(checkScrollBottom);
+      }
+    }).observe(document.getElementById('xftp-protocol'), { attributes: true, attributeFilter: ['class'] });
+  }
+</script>
+
+<div id="address-portability" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Address portability</h1><div class="overlay-content"><p>Similarly to <a href="https://en.wikipedia.org/wiki/Local_number_portability">phone number portability</a> (the ability of the customer to transfer the service to another provider without changing the number), the address portability means the ability of a communication service customer to change the service provider without changing the service address. Many <a href="#federated-network">federated networks</a> support SRV records to provide address portability, but allowing service users to set up their own domains for the addresses is not as commonly supported by the available server and client software as for email.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="federated-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Federated network</h1><div class="overlay-content"><p>Federated network is provided by several entities that agree upon the standards and operate the network collectively. This allows the users to choose their provider, that will hold their account, their messaging history and contacts, and communicate with other providers' servers on behalf of the user. The examples are email, XMPP, Matrix and Mastodon.</p><p>The advantage of that design is that there is no single organization that all users depend on, and the standards are more difficult to change, unless it benefits all users. There are several disadvantages: 1) the innovation is slower, 2) each user account still depends on a single organization, and in most cases can't move to another provider without changing their network address – there is no <a href="#address-portability">address portability</a>, 3) the security and privacy are inevitably worse than with the centralized networks.</p><p><a href="https://en.wikipedia.org/wiki/Federation_(information_technology)">Federation on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="anonymous-credentials" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Anonymous credentials</h1><div class="overlay-content"><p>The credential that allows proving something, e.g. the right to access some resource, without identifying the user. This credential can either be generated by a trusted party or by the user themselves and provided together with the request to create the resource. The first approach creates some centralized dependency in most cases. The second approach does not require any trust - this is used in SimpleX network to authorize access to the messaging queues.</p><p><a href="https://en.wikipedia.org/wiki/Digital_credential">Digital credential on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="blockchain" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Blockchain</h1><div class="overlay-content"><p>In a wide sense, blockchain means a sequence of blocks of data, where each block contains a cryptographic hash of the previous block, thus providing integrity to the whole chain. Blockchains are used in many communication and information storage systems to provide integrity and immutability of the data. For example, BluRay disks use blockchain. SimpleX messaging queues also use blockchain - each message includes the hash of the previous message, to ensure the integrity – if any message is modified it will be detected by the recipient when the next message is received. Blockchains are a subset of <a href="#merkle-directed-acyclic-graph">Merkle directed acyclic graphs</a>.</p><p>In a more narrow sense, particularly in media, blockchain is used to refer specifically to distributed ledger, where each record also includes the hash of the previous record, but the blocks have to be agreed by the participating peers using some <a href="https://en.wikipedia.org/wiki/Consensus_(computer_science)">consensus protocol</a>.</p><p><a href="https://en.wikipedia.org/wiki/Blockchain">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="merkle-directed-acyclic-graph" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Merkle directed acyclic graph</h1><div class="overlay-content"><p>Also known as Merkle DAG, a data structure based on a general graph structure where node contains the cryptographic hashes of the previous nodes that point to it. Merkle trees are a subset of Merkle DAGs - in this case each leaf contains a cryptographic hash of the parent.</p><p>This structure by design allows to verify the integrity of the whole structure by computing its hashes and comparing with the hashes included in the nodes, in the same way as with <a href="#blockchain">blockchain</a>.</p><p>The motivation to use DAG in distributed environments instead of a simpler linear blockchain is to allow concurrent additions, when there is no requirement for a single order of added items. Merkle DAG is used, for example, in <a href="https://en.wikipedia.org/wiki/InterPlanetary_File_System">IPFS</a> and will be used in decentralized SimpleX groups.</p><p><a href="https://en.wikipedia.org/wiki/Merkle_tree">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="break-in-recovery" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Break-in recovery</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="double-ratchet-algorithm" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Double ratchet algorithm</h1><div class="overlay-content"><p>It is used by two parties to exchange <a href="#end-to-end-encryption">end-to-end encrypted</a> messages. The parties will use some <a href="#key-agreement-protocol">key agreement protocol</a> to agree on the initial shared secret key.</p><p>Double Ratchet algorithm provides <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>. It is <a href="https://signal.org/docs/specifications/doubleratchet">designed by Signal</a>, and used in SimpleX Chat and many other secure messengers. Most experts consider it the state-of-the-art encryption protocol in message encryption.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="centralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Centralized network</h1><div class="overlay-content"><p>Centralized networks are provided or controlled by a single entity. The examples are Threema, Signal, WhatsApp and Telegram. The advantage of that design is that the provider can innovate faster, and has a centralized approach to security. But the disadvantage is that the provider can change or discontinue the service, and leak, sell or disclose in some other way all users' data, including who they are connected with.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="content-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Content padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="decentralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Decentralized network</h1><div class="overlay-content"><p>Decentralized network is often used to mean "the network based on decentralized blockchain". In its original meaning, decentralized network means that there is no central authority or any other point of centralization in the network, other than network protocols specification. The advantage of decentralized networks is that they are resilient to censorship and to the provider going out of business. The disadvantage is that they are often slower to innovate, and the security may be worse than with the centralized network.</p><p>The examples of decentralized networks are email, web, DNS, XMPP, Matrix, BitTorrent, etc. All these examples have a shared global application-level address space. Cryptocurrency blockchains not only have a shared address space, but also a shared state, so they are more centralized than email. Tor network also has a shared global address space, but also a central authority. SimpleX network does not have a shared application-level address space (it relies on the shared transport-level addresses - SMP relay hostnames or IP addresses), and it does not have any central authority or any shared state.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="defense-in-depth" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Defense in depth</h1><div class="overlay-content"><p>Originally, it is a military strategy that seeks to delay rather than prevent the advance of an attacker, buying time and causing additional casualties by yielding space.</p><p>In information security, defense in depth represents the use of multiple computer security techniques to help mitigate the risk of one component of the defense being compromised or circumvented. An example could be anti-virus software installed on individual workstations when there is already virus protection on the firewalls and servers within the same environment.</p><p>SimpleX network applies defense in depth approach to security by having multiple layers for the communication security and privacy:</p><ul>
+<li>double ratchet algorithm for <a href="#end-to-end-encryption">end-to-end encryption</a> with <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>,</li>
+<li>additional layer of end-to-end encryption for each messaging queue and another encryption layer of encryption from the server to the recipient inside TLS to prevent correlation by ciphertext,</li>
+<li>TLS with only strong ciphers allowed,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-server connection via server offline certificate verification,</li>
+<li>mitigation of replay attacks via signing over transport channel binding,</li>
+<li>multiple layers of <a href="#message-padding">message padding</a> to reduce efficiency of traffic analysis,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-client out-of-band channel when sending the invitation,</li>
+<li>rotation of delivery queues to reduce efficiency of traffic analysis,</li>
+<li>etc.</li>
+</ul><p><a href="https://en.wikipedia.org/wiki/Defence_in_depth">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="end-to-end-encryption" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">End-to-end encryption</h1><div class="overlay-content"><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><p>End-to-end encryption requires agreeing cryptographic keys between the sender and the recipient in a way that no eavesdroppers can access the agreed keys. See <a href="#key-agreement-protocol">key agreement protocol</a>. This key exchange can be compromised via <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>, particularly if key exchange happens via the same communication provider and no out-of-band channel is used to verify key exchange.</p><p><a href="https://en.wikipedia.org/wiki/End-to-end_encryption">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-compromise-security" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-compromise security</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="man-in-the-middle-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Man-in-the-middle attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="message-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Message padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="key-agreement-protocol" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key agreement protocol</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="tooltip-end-to-end-encryption" class="glossary-tooltip"><div class="tooltip-content"><h4 class="tooltip-title">End-to-end encryption</h4><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><button class="read-more-btn open-overlay-btn" data-show-overlay="end-to-end-encryption">Read more</button></div></div><div id="key-exchange" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key exchange</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="mitm-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">MITM attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="non-repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Non-repudiation</h1><div class="overlay-content">Non-repudiation</div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="onion-routing" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Onion routing</h1><div class="overlay-content"><p>A technique for anonymous communication over a computer network that uses multiple layers of message encryption, analogous to the layers of an onion. The encrypted data is transmitted through a series of network nodes called "onion routers," each of which "peels" away a single layer, revealing the data's next destination. The sender remains anonymous because each intermediary knows only the location of the immediately preceding and following nodes.</p><p>The most widely used onion network is <a href="https://en.wikipedia.org/wiki/Tor_(network)">Tor</a>.</p><p>Some elements of SimpleX network use similar ideas in their design - different addresses for the same resource used by different parties, and additional encryption layers. Currently though, SimpleX messaging protocol does not protect sender network address, as the relay server is chosen by the recipient. The delivery relays chosen by sender that are planned for the future would make SimpleX design closer to onion routing.</p><p><a href="https://en.wikipedia.org/wiki/Onion_routing">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="overlay-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Overlay network</h1><div class="overlay-content"><p>Nodes in the overlay network can be thought of as being connected by virtual or logical links, each of which corresponds to a path, perhaps through many physical links, in the underlying network. Tor, for example, is an overlay network on top of IP network, which in its turn is also an overlay network over some underlying physical network.</p><p>SimpleX Clients also form a network using SMP relays and IP or some other overlay network (e.g., Tor), to communicate with each other. SMP relays, on another hand, do not form a network.</p><p><a href="https://en.wikipedia.org/wiki/Overlay_network">Wikipedia</a></p><h1>Non-repudiation</h1><p>The property of the cryptographic or communication system that allows the recipient of the message to prove to any third party that the sender identified by some cryptographic key sent the message. It is the opposite to <a href="#repudiation">repudiation</a>. While in some context non-repudiation may be desirable (e.g., for contractually binding messages), in the context of private communications it may be undesirable.</p><p><a href="https://en.wikipedia.org/wiki/Non-repudiation">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Repudiation</h1><div class="overlay-content"><p>The property of the cryptographic or communication system that allows the sender of the message to plausibly deny having sent the message, because while the recipient can verify that the message was sent by the sender, they cannot prove it to any third party - the recipient has a technical ability to forge the same encrypted message. This is an important quality of private communications, as it allows to have the conversation that can later be denied, similarly to having a private face-to-face conversation.</p><p>See also <a href="#non-repudiation">non-repudiation</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="pairwise-pseudonymous-identifier" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Pairwise pseudonymous identifier</h1><div class="overlay-content"><p>Generalizing <a href="https://csrc.nist.gov/glossary/term/pairwise_pseudonymous_identifier">the definition</a> from NIST Digital Identity Guidelines, it is an opaque unguessable identifier generated by a service used to access a resource by only one party.</p><p>In the context of SimpleX network, these are the identifiers generated by SMP relays to access anonymous messaging queues, with a separate identifier (and access credential) for each accessing party: recipient, sender and and optional notifications subscriber. The same approach is used by XFTP relays to access file chunks, with separate identifiers (and access credentials) for sender and each recipient.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Peer-to-peer</h1><div class="overlay-content"><p>Peer-to-peer (P2P) is the network architecture when participants have equal rights and communicate directly via a general purpose transport or overlay network. Unlike client-server architecture, all peers in a P2P network both provide and consume the resources. In the context of messaging, P2P architecture usually means that the messages are sent between peers, without user accounts or messages being stored on any servers. Examples are Tox, Briar, Cwtch and many others.</p><p>The advantage is that the participants do not depend on any servers. There are <a href="./SIMPLEX.md#comparison-with-p2p9-messaging-protocols">multiple downsides</a> to that architecture, such as no asynchronous message delivery, the need for network-wide peer addresses, possibility of network-wide attacks, that are usually mitigated only by using a centralized authority. These disadvantages are avoided with <a href="#proxied-peer-to-peer">proxied P2P</a> architecture.</p><p><a href="https://en.wikipedia.org/wiki/Peer-to-peer">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="proxied-peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Proxied peer-to-peer</h1><div class="overlay-content"><p>Network topology of the communication system when peers communicate via proxies that do not form the network themselves. Such design is used in Pond, that has a fixed home server for each user, and in SimpleX, that uses multiple relays providing temporary connections.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="perfect-forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Perfect forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-cryptography" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum cryptography</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-hybrid-crypto" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum hybrid crypto</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="recovery-from-compromise" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Recovery from compromise</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="user-identity" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">User identity</h1><div class="overlay-content"><p>In a communication system it refers to anything that uniquely identifies the users to the network. Depending on the communication network, it can be a phone number, email address, username, public key or a random opaque identifier. Most messaging networks rely on some form of user identity. SimpleX appears to be the only messaging network that does not rely on any kind of user identity - see <a href="https://en.wikipedia.org/wiki/Comparison_of_instant_messaging_protocols">this comparison</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div></body></html>
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+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            O nas i Kontakt
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+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
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+                        </a>
+                        <a href="https://github.com/simplex-chat/simplex-chat#please-support-us-with-your-donations"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            Darowizna
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
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+                        <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            SimpleX Whitepaper
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                        <a href="https://github.com/simplex-chat/simplex-chat/blob/stable/docs/protocol/simplex-chat.md"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            Protokół SimpleX Chat
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                        <a href="https://github.com/simplex-chat/simplex-chat/blob/stable/docs/CLI.md"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            Terminal CLI
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                        <a href="https://github.com/simplex-chat/simplex-chat/tree/stable/bots"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            SimpleX bots API
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                    </div>
+                </div>
+            </div>
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+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M20.0408 0.926758C8.9951 0.926758 0.0407715 9.88109 0.0407715 20.9268C0.0407715 31.9724 8.9951 40.9268 20.0408 40.9268C31.0864 40.9268 40.0408 31.9724 40.0408 20.9268C40.0408 9.88109 31.0864 0.926758 20.0408 0.926758ZM9.6421 17.4916H14.1745V31.1098H9.6421V17.4916ZM14.4731 13.279C14.4437 11.9438 13.4889 10.9268 11.9383 10.9268C10.3878 10.9268 9.3741 11.9438 9.3741 13.279C9.3741 14.5866 10.3579 15.6328 11.8794 15.6328H11.9084C13.4889 15.6328 14.4731 14.5866 14.4731 13.279ZM25.3017 17.1718C28.2843 17.1718 30.5203 19.1187 30.5203 23.3015L30.5201 31.1098H25.9879V23.824C25.9879 21.994 25.3319 20.7453 23.6912 20.7453C22.439 20.7453 21.6932 21.5871 21.3656 22.4003C21.2458 22.6916 21.2164 23.0976 21.2164 23.5046V31.1101H16.6834C16.6834 31.1101 16.7431 18.7698 16.6834 17.492H21.2164V19.4208C21.8179 18.4936 22.8953 17.1718 25.3017 17.1718Z" />
+                            </svg>
+                        </a>
+                        <a href="https://simplex.chat/feed.rss" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 512 512" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M256 512C397.385 512 512 397.385 512 256C512 114.615 397.385 0 256 0C114.615 0 0 114.615 0 256C0 397.385 114.615 512 256 512ZM132.791 157.572C215.586 161.137 279.503 196.841 323.612 267.517C344.138 302.436 354.186 339.959 354.57 380.122H406.814C409.639 231.301 280.977 103.1 132.791 106.05V157.572ZM309.994 343.843C311.593 356.035 313.096 367.877 314.65 380.116H261.161C260.496 344.968 248.303 314.452 223.472 289.485C198.613 264.491 168.097 252.282 132.755 251.38V199.743C198.318 196.346 288.694 244.344 309.994 343.843ZM132.766 336.706C129.293 354.261 137.796 370.323 154.848 378.004L155.461 378.242C156.267 378.558 156.912 378.81 157.577 378.985C173.012 383.066 186.298 379.318 196.604 367.168C206.463 355.544 208.397 342.145 201.87 328.354C195.205 314.271 183.419 307.215 167.834 307.356C151.188 307.509 135.971 320.504 132.766 336.706Z" />
+                            </svg>
+                        </a>
+                    </div>
+                </div>
+            </article>
+        </div>
+        <a href="#" class="text-grey-black dark:text-white text-[16px] text-center lg:ltr:text-left lg:rtl:text-right font-medium leading-[28px] tracking-[0.01em] block mt-[60px]">© 2020-2025 SimpleX Chat | Projekt Open-Source</a>
+    </div>
+</section>
+
+
+        <script src="/js/swiper-bundle.min.js"></script>
+        <script src="/js/script.js"></script>
+    </body>
+</html>
diff --git a/pl/index.html b/pl/index.html
index 6b16f846c1..0eb70984be 100644
--- a/pl/index.html
+++ b/pl/index.html
@@ -153,6 +153,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/pl/invitation/index.html b/pl/invitation/index.html
index 06e44d6b3c..26b18d2b31 100644
--- a/pl/invitation/index.html
+++ b/pl/invitation/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/pl/messaging/index.html b/pl/messaging/index.html
index b128fdfb2d..bf5cfd6302 100644
--- a/pl/messaging/index.html
+++ b/pl/messaging/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/pl/old/index.html b/pl/old/index.html
index b75df99d5b..c5a3655ef3 100644
--- a/pl/old/index.html
+++ b/pl/old/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/pl/why/index.html b/pl/why/index.html
index 5f12f17e73..bd0f0e5e1c 100644
--- a/pl/why/index.html
+++ b/pl/why/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/privacy/index.html b/privacy/index.html
index 43490ce8aa..8c2255a55a 100644
--- a/privacy/index.html
+++ b/privacy/index.html
@@ -129,6 +129,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/pt_BR/contact/index.html b/pt_BR/contact/index.html
index 40fe9eea51..34bf719dee 100644
--- a/pt_BR/contact/index.html
+++ b/pt_BR/contact/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/pt_BR/fdroid/index.html b/pt_BR/fdroid/index.html
index 7db69b2291..3de8d96571 100644
--- a/pt_BR/fdroid/index.html
+++ b/pt_BR/fdroid/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/pt_BR/file/index.html b/pt_BR/file/index.html
new file mode 100644
index 0000000000..7646cc6a23
--- /dev/null
+++ b/pt_BR/file/index.html
@@ -0,0 +1,888 @@
+<!DOCTYPE html>
+<html lang="pt_BR"
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+            dir="ltr"
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    >
+    <head>
+        <meta charset="UTF-8">
+        <meta http-equiv="X-UA-Compatible" content="IE=edge">
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        <title>SimpleX File Transfer</title>
+        <meta name="description" content="Send files securely with end-to-end encryption"/>
+        <meta name="Content-Type" content="text/html;charset=utf-8"/>
+        
+        <meta http-equiv="onion-location" content="http://isdb4l77sjqoy2qq7ipum6x3at6hyn3jmxfx4zdhc72ufbmuq4ilwkqd.onion/" />
+        <meta property="og:url" content="https://simplex.chat/" />
+        
+        <meta property="og:type" content="website"/>
+        <meta property="og:title" content="SimpleX File Transfer"/>
+        <meta property="og:description" content="Send files securely with end-to-end encryption"/>
+        <meta property="og:image" content="https://simplex.chat/img/share_simplex.jpg"/>
+        <meta name="twitter:card" content="summary"/>
+        <link rel="icon" type="image/png" sizes="96x96" href="/img/favicon.ico"/>
+
+        <link rel="stylesheet" href="/css/swiper-bundle.min.css">
+        <link rel="stylesheet" href="/css/blog.css">
+        <link href="/css/tailwind.css" rel="stylesheet"/>
+        <link rel="stylesheet" href="/css/style.css">
+        <link rel="stylesheet" href="/css/design3-nav.css">
+        <script async defer src="https://buttons.github.io/buttons.js"></script>
+        <script src="/js/flag-anchor.js"></script>
+        
+    </head>
+    <body class="bg-[#F3FAFF] dark:bg-[#000832]">
+        
+
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+        
+    
+
+    
+
+    
+
+    
+
+    
+
+
+<header id="navbar">
+    <a href="/pt_BR" class="logo logo-light ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-light.png" alt="logo"></a>
+    <a href="/pt_BR" class="logo logo-dark ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-dark.png" alt="logo"></a>
+
+    <nav id="menu">
+        <ul>
+            <li class="nav-link ">
+                <a href="/pt_BR">
+                    <span class="nav-link-text">Início</span>
+                </a>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/directory/">
+                    <span class="nav-link-text">Diretório</span>
+                </a>
+            </li>
+
+            
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">Manual</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    
+                        <li><a href="/docs/guide/readme.html" class="">Início rápido</a></li>
+                    
+                        <li><a href="/docs/guide/send-messages.html" class="">Enviando mensagens</a></li>
+                    
+                        <li><a href="/docs/guide/secret-groups.html" class="">Grupos secretos</a></li>
+                    
+                        <li><a href="/docs/guide/chat-profiles.html" class="">Perfis de chat</a></li>
+                    
+                        <li><a href="/docs/guide/managing-data.html" class="">Gerenciando dados</a></li>
+                    
+                        <li><a href="/docs/guide/audio-video-calls.html" class="">Chamadas de áudio e vídeo</a></li>
+                    
+                        <li><a href="/docs/guide/privacy-security.html" class="">Privacidade e segurança</a></li>
+                    
+                        <li><a href="/docs/guide/app-settings.html" class="">Configurações do aplicativo</a></li>
+                    
+                        <li><a href="/docs/guide/making-connections.html" class="">Fazendo conexões</a></li>
+                    
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">Referência</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md"
+                        target="_blank">Whitepaper
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/privacy">Termos de serviço & Política de Privacidade</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/simplex-messaging.md"
+                        target="_blank">Protocolo SMP
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/protocol/simplex-chat.html">Protocolo de bate-papo</a></li>
+                    <li><a href="/docs/glossary.html">Glossário</a></li>
+
+                    <hr>
+
+                    
+                        <li><a href="/docs/simplex.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Rede SimpleX</a></li>
+                    
+                        <li><a href="/docs/business.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX para negócios</a></li>
+                    
+                        <li><a href="/docs/directory.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Diretório SimpleX</a></li>
+                    
+                        <li><a href="/docs/android.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Acessando arquivos do Android</a></li>
+                    
+                        <li><a href="/docs/server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Hospedar Servidor SMP</a></li>
+                    
+                        <li><a href="/docs/xftp-server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Hospedar Servidor XFTP</a></li>
+                    
+                        <li><a href="/docs/webrtc.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Servidores WebRTC</a></li>
+                    
+                        <li><a href="/downloads/" class=" lg:px-[20px] inline-block whitespace-nowrap">Baixar</a></li>
+                    
+                        <li><a href="/reproduce/" class=" lg:px-[20px] inline-block whitespace-nowrap">Verify & reproduce builds</a></li>
+                    
+                        <li><a href="/transparency/" class=" lg:px-[20px] inline-block whitespace-nowrap">Transparência</a></li>
+                    
+                        <li><a href="/security/" class=" lg:px-[20px] inline-block whitespace-nowrap">Segurança</a></li>
+                    
+                        <li><a href="/faq/" class=" lg:px-[20px] inline-block whitespace-nowrap">FAQ</a></li>
+                    
+
+                    <hr>
+
+                    <li><a href="/docs/translations.html"
+                    >Traduza o SimpleX Chat
+                    </a></li>
+                    <li><a href="/docs/android.html"
+                    >Acessando arquivos do Android
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/blob/stable/apps/simplex-bot-advanced/Main.hs"
+                        target="_blank">Exemplo de chat bot
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/tree/stable/packages/simplex-chat-client/typescript"
+                        target="_blank">TypeScript SDK
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/cli.html">CLI Terminal</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq"
+                        target="_blank">SimpleXMQ
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/blog">
+                    <span class="nav-link-text">Blog</span>
+                </a>
+            </li>
+        </ul>
+    </nav>
+
+    <div class="right-links">
+        
+            <a class="box-btn token md:hidden" href="/donate">
+                Doar
+            </a>
+        
+        <button href="#" class="theme-switch-btn">
+            <svg class="sun" width="469" height="469" viewBox="0 0 469 469" fill="none" xmlns="http://www.w3.org/2000/svg">
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+            <path d="M225.368 385.712C222.968 387.046 219.368 390.112 217.368 392.646L213.768 397.312V426.379C213.768 458.246 213.901 458.779 222.968 465.446C228.168 469.312 240.701 469.312 245.901 465.446C254.834 458.779 255.101 457.979 255.501 428.246C256.034 397.579 255.234 394.379 246.834 387.979C241.101 383.579 231.634 382.512 225.368 385.712Z"/>
+            </svg>
+
+            <svg class="moon" width="469" height="469" viewBox="5 5 20 23" xmlns="http://www.w3.org/2000/svg">
+                <path d="M10.895 7.574c0 7.55 5.179 13.67 11.567 13.67 1.588 0 3.101-0.38 4.479-1.063-1.695 4.46-5.996 7.636-11.051 7.636-6.533 0-11.83-5.297-11.83-11.83 0-4.82 2.888-8.959 7.023-10.803-0.116 0.778-0.188 1.573-0.188 2.39z"></path>
+            </svg>
+        </button>
+
+        
+
+        <button id="cross-btn" class="nav-toggle-btn">
+            <svg id="cross" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+            <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z" />
+        </svg>
+        </button>
+    </div>
+</header>
+<div id="mobile-header">
+    <a href="/pt_BR" class="logo flex dark:hidden ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-light.svg" alt="" srcset=""></a>
+    <a href="/pt_BR" class="logo hidden dark:flex ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-dark.svg" alt="" srcset=""></a>
+
+    <button id="hamburger" class="nav-toggle-btn">
+        <svg viewBox="0 0 100 80" width="36" height="36">
+            <rect width="100" height="15"></rect>
+            <rect y="30" width="100" height="15"></rect>
+            <rect y="60" width="100" height="15"></rect>
+        </svg>
+    </button>
+</div>
+
+
+<script>
+// switch theme
+const sunIcon = document.querySelector('.sun');
+const moonIcon = document.querySelector('.moon');
+
+const userTheme = localStorage.getItem('theme');
+const systemTheme = window.matchMedia('(prefers-color-scheme: dark)').matches;
+const prismThemeLink = document.getElementById('prism-theme')
+
+function iconToggle () {
+    sunIcon.classList.toggle('hidden');
+    moonIcon.classList.toggle('hidden');
+}
+
+function themeCheck() {
+    if (userTheme === 'dark' || (!userTheme && systemTheme)) {
+        document.documentElement.classList.add('dark');
+        moonIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+    }
+    else{
+        sunIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+    }
+}
+themeCheck();
+
+function themeSwitch () {
+    if (document.documentElement.classList.contains('dark')) {
+        document.documentElement.classList.remove('dark');
+        localStorage.setItem('theme', 'light');
+        if(prismThemeLink){
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+        iconToggle();
+    } else {
+        document.documentElement.classList.add('dark');
+        localStorage.setItem('theme', 'dark');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+        iconToggle();
+    }
+}
+
+const nav = document.querySelector('header#navbar');
+
+window.addEventListener('click',(e)=>{
+    if(e.target.closest('.nav-link')){
+        if(e.target.closest('.nav-link').classList.contains('active')){
+            e.target.closest('.nav-link').classList.remove('active');
+        }
+        else{
+            document.querySelectorAll('.nav-link').forEach(el => el.classList.remove('active'))
+            e.target.closest('.nav-link').classList.add('active');
+        }
+    }
+    else if(e.target.closest('.nav-toggle-btn')){
+        if(nav.classList.contains('open')){
+            nav.classList.remove('open');
+            document.getElementById('mobile-header').classList.remove('nav-open');
+            document.documentElement.classList.remove('lock-scroll');
+        }
+        else{
+            document.documentElement.classList.add('lock-scroll');
+            document.getElementById('mobile-header').classList.add('nav-open');
+            nav.classList.add('open');
+        }
+    }
+    else if(e.target.closest('.theme-switch-btn')){
+        themeSwitch();
+    }
+});
+</script>
+
+        <html><head><link rel="stylesheet" href="/file-assets/index.css">
+<style>
+  /* Reset website .card styles that conflict with xftp bundle */
+  #app .card { cursor: default; }
+  #app .card,
+  #app .card > div { transition: unset; height: auto; }
+  #app .card > div > * { opacity: unset; max-height: unset; transform: unset; transition: unset; }
+
+  /* Align xftp bundle with website design */
+  #app { font-family: inherit; color: #3F484B; max-width: 600px; width: 100%; margin: 0 auto; padding: 0; }
+  #app .card { background: transparent; box-shadow: none; padding: 0; border-radius: 0; }
+  #app .card > h1 { display: none; }
+  .dark #app h1 { color: #fff; }
+  #app .drop-zone { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; }
+  #app .drop-zone.drag-over { border-color: #0053D0; background: #DBEEFF; }
+  #app .btn { background: #0053D0; border-radius: 34px; padding: 12px 32px; font-size: .9rem; font-weight: 600; }
+  #app .btn:hover { background: #1661D1; }
+  #app .btn-secondary { background: #6b7280; border-radius: 34px; }
+  #app .hint { color: #6b7280; }
+  #app .link-row input { border-radius: 8px; border-color: #c5d3de; }
+  #app .security-note { background: #ffffff; border-radius: 12px; color: #3F484B; }
+  #app .security-note a { color: #0197FF; }
+  #app .success { color: #0053D0; }
+
+  .dark #app { color: #e5e7eb; }
+  .dark #app .card { background: transparent; box-shadow: none; }
+  .dark #app .drop-zone { border-color: #374151; }
+  .dark #app .drop-zone.drag-over { border-color: #70F0F9; background: #1B325C; }
+  .dark #app .btn { background: #70F0F9; color: #000832; }
+  .dark #app .btn:hover { background: #66D9E2; }
+  .dark #app .link-row input { border-color: #374151; background: #071C46; color: #e5e7eb; }
+  .dark #app .security-note { background: #0B2A59; color: #d1d5db; }
+  .dark #app .security-note a { color: #70F0F9; }
+  .dark #app .success { color: #70F0F9; }
+
+  #app #upload-error { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; text-align: center; }
+  .dark #app #upload-error { border-color: #374151; }
+
+  #app .stage > .btn { margin-top: 20px; }
+  #app .security-note { margin-top: 20px; }
+  #app .drop-zone .btn { margin: 10px 0 16px; }
+
+  /* Protocol overlay: image fixed, text scrolls natively */
+  /* Push popup below navbar at all widths */
+  #xftp-protocol { padding-top: 70px; }
+  #xftp-protocol .overlay-card {
+    display: flex;
+    flex-direction: column;
+    position: relative;
+    overflow: hidden;
+  }
+  @media (min-width: 768px) {
+    #xftp-protocol .overlay-card { max-height: min(660px, 100%); }
+  }
+  #xftp-protocol .overlay-card > h1 {
+    flex-shrink: 0;
+    padding-bottom: 16px;
+    margin-bottom: 0;
+    z-index: 1;
+  }
+  @media (min-width: 1024px) and (max-height: 750px) {
+    #xftp-protocol .overlay-card > h1 {
+      font-size: 22px;
+    }
+  }
+  /* .flex is the full-width scroll container */
+  #xftp-protocol .overlay-card > .flex {
+    flex: 1;
+    min-height: 0;
+    overflow-y: auto;
+    scrollbar-width: thin;
+    scrollbar-color: #c5d3de transparent;
+  }
+  .dark #xftp-protocol .overlay-card > .flex {
+    scrollbar-color: #374151 transparent;
+  }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar { width: 6px; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-track { background: transparent; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #c5d3de; border-radius: 3px; }
+  .dark #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #374151; }
+  /* Desktop: text stays left, image fixed on right */
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card > .flex > div:first-child {
+      max-width: 50%;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child {
+      position: absolute;
+      right: 56px;
+      top: 0;
+      bottom: 0;
+      left: 55%;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      pointer-events: none;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child > div {
+      height: 100%;
+      padding: 40px 0;
+      box-sizing: border-box;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child img {
+      height: 100%;
+    }
+  }
+  #xftp-protocol .close-overlay-btn {
+    position: absolute;
+    top: 24px;
+    right: 24px;
+    cursor: pointer;
+    z-index: 3;
+    fill: #606C71;
+  }
+  .dark #xftp-protocol .close-overlay-btn { fill: #e5e7eb; }
+  /* Scroll fade: gradient over text area only, hidden at bottom */
+  #xftp-protocol .overlay-card::after {
+    content: '';
+    position: absolute;
+    bottom: 40px;
+    left: 24px;
+    right: 24px;
+    height: 48px;
+    background: linear-gradient(rgba(255,255,255,0), #fff);
+    pointer-events: none;
+    z-index: 2;
+    transition: opacity 0.2s;
+  }
+  .dark #xftp-protocol .overlay-card::after {
+    background: linear-gradient(rgba(7,28,70,0), #071C46);
+  }
+  @media (min-width: 640px) {
+    #xftp-protocol .overlay-card::after { bottom: 56px; left: 56px; right: 56px; }
+  }
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card::after { right: 55%; }
+  }
+  #xftp-protocol.scrolled-bottom .overlay-card::after { opacity: 0; }
+  #xftp-protocol .overlay-card.flex,
+  #xftp-protocol.flex .overlay-card { animation: overlaySlideIn 0.25s ease-out; }
+  @keyframes overlaySlideIn {
+    from { opacity: 0; transform: scale(0.95) translateY(10px); }
+    to { opacity: 1; transform: scale(1) translateY(0); }
+  }
+  #xftp-protocol.overlay-closing { animation: overlayFadeOut 0.2s ease-in forwards; }
+  #xftp-protocol.overlay-closing .overlay-card { animation: overlaySlideOut 0.2s ease-in forwards; }
+  @keyframes overlayFadeOut {
+    from { opacity: 1; }
+    to { opacity: 0; }
+  }
+  @keyframes overlaySlideOut {
+    from { opacity: 1; transform: scale(1) translateY(0); }
+    to { opacity: 0; transform: scale(0.95) translateY(10px); }
+  }
+
+  .file-proto-link {
+    font-size: 1.25rem;
+    font-weight: 600;
+    background: linear-gradient(90deg, #001aa7 0%, #0095e7 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+    text-decoration: none;
+  }
+  .dark .file-proto-link {
+    background: linear-gradient(90deg, #019bfe 0%, #64fdff 58%, #c8feff 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+  }
+
+</style>
+
+</head><body><section class="bg-secondary-bg-light dark:bg-primary-bg-dark py-10 mt-[66px] px-5">
+  <div class="container flex flex-col items-center mx-auto">
+    <noscript>
+      <p class="text-center text-grey-black dark:text-white py-10">
+        JavaScript is required for file transfer.
+      </p>
+    </noscript>
+    <h1 class="text-[38px] text-center font-bold text-active-blue mb-8">SimpleX File Transfer</h1>
+    <div id="app" data-xftp-app="" data-no-hashchange="" class="w-full">
+      <div class="card">
+        <div class="drop-zone">
+          <p>Drag &amp; drop a file here</p>
+          <p class="hint">or</p>
+          <span class="btn">Choose file</span>
+          <p class="hint">Max 100 MB - <a href="#join-simplex">SimpleX Chat app</a> supports files up to 1 GB</p>
+        </div>
+      </div>
+    </div>
+    <template id="dl-placeholder">
+      <div class="card">
+        <h1>SimpleX File Transfer</h1>
+        <div class="stage">
+          <p>File available</p>
+          <button class="btn">Download</button>
+          <div class="security-note">
+            <p>This file is encrypted - data routers never see file contents, name or size.</p>
+            <p>The encryption key is in the link’s hash fragment - it is never sent to any server.</p>
+            <p>For better security, use <a href="https://simplex.chat/download">SimpleX Chat</a> app.</p>
+          </div>
+        </div>
+      </div>
+    </template>
+    <script>if(location.hash.length>50){var a=document.getElementById("app"),t=document.getElementById("dl-placeholder");if(a&&t)a.replaceChildren(t.content.cloneNode(true))}</script>
+    <script type="module" src="/file-assets/index.js"></script>
+
+    <p class="text-base text-center text-grey-black dark:text-white mt-10 max-w-[600px]">Send files securely with <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span> — no accounts, no tracking.</p>
+    <a href="javascript:void(0)" data-show-overlay="xftp-protocol" class="open-overlay-btn file-proto-link mt-3 block text-center">Learn more about XFTP protocol</a>
+  </div>
+</section>
+
+<section class="bg-primary-bg-light dark:bg-secondary-bg-dark py-[90px] px-5">
+  <div class="container flex flex-col items-center mx-auto text-center">
+    <h2 class="text-[35px] leading-[45px] md:text-[45px] md:leading-[55px] text-grey-black dark:text-white font-bold mb-5">
+      Get SimpleX Chat — the most secure &amp; private messenger
+    </h2>
+    <p class="text-base text-grey-black dark:text-white mb-14 max-w-[600px]">
+      The file transfer you just used uses the same data routing protocol as SimpleX Chat. The app has end-to-end encrypted messaging, voice and video calls, groups, and sending files. No account. No phone. No email. No user profile IDs.
+    </p>
+    <div class="flex items-center justify-center gap-4 flex-wrap">
+      <a href="https://apps.apple.com/us/app/simplex-chat/id1605771084" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apple_store.svg"></a>
+      <a href="https://play.google.com/store/apps/details?id=chat.simplex.app" target="_blank"><img class="h-[40px] w-auto" src="/img/new/google_play.svg"></a>
+      <a href="/pt_BR/fdroid"><img class="h-[40px] w-auto" src="/img/new/f_droid.svg"></a>
+      <a href="https://testflight.apple.com/join/DWuT2LQu" target="_blank"><img class="h-[40px] w-auto" src="/img/new/testflight.png"></a>
+      <a href="https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-aarch64.apk" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apk_icon.png"></a>
+    </div>
+  </div>
+</section>
+
+
+  
+    
+    <div id="xftp-protocol" data-scroll-to="" class="overlay hidden fixed top-0 left-0 bottom-0 right-0 before:absolute before:w-full before:h-full bg-transparent before:bg-secondary-bg-light dark:before:bg-primary-bg-dark before:opacity-90 items-center justify-center p-3 md:p-10 z-[10000]">
+        <div class="overlay-card w-full md:w-fit md:max-w-[1276px] bg-white dark:bg-card-bg-dark opacity-100 h-full md:h-fit md:max-h-[660px] z-[10001] rounded-md shadow-[0px_3px_12px_rgba(0,0,0,0.2)] p-6 py-10 sm:p-14 overflow-auto scale-100">
+            <h1 class="text-3xl font-bold text-active-blue mb-6 ">XFTP protocol: the most secure file transfer</h1>
+            <div class="flex flex-col-reverse lg:flex-row gap-10 justify-between">
+                
+                    <div class="lg:max-w-[448px]">
+                        <div class="text-grey-black dark:text-white flex flex-col gap-6 text-base">
+                            <div>
+  <h3 class="font-bold text-lg mb-2">No account required</h3>
+  <p>Each file fragment uses a new random key. Data routers have no "users" or "files" - they transfer encrypted file fragments of fixed sizes.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Triple-encrypted in your browser</h3>
+  <p>File encryption key is present only in the URL hash fragment - your browser never sends it to a server. There are 3 encryption layers: TLS transport, per-recipient encryption (unique ephemeral key per transfer), and file <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span>.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Independent data routers</h3>
+  <p>When file is split to fragments, it is sent via network routers operated by independent parties. No operator can see the actual file size or name. Even if a router is compromised, it can only see encrypted fragments of fixed size. File fragments are cached by network routers for approximately 48 hours.</p>
+</div>
+<p class="mt-4">
+  <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/xftp.md" target="_blank" rel="noopener" class="text-active-blue hover:underline">
+    Read the XFTP protocol specification →
+  </a>
+</p>
+
+                        </div>
+                    </div>
+                
+
+                
+                    <div class="max-w-[448px]">
+                        <div class="flex items-center justify-center">
+                            <img class="w-full max-w-[448px] min-w-[300px] dark:hidden" src="/img/new/xftp-protocol.svg" alt="">
+                            <img class="w-full max-w-[448px] min-w-[300px] hidden dark:block" src="/img/new/xftp-protocol-dark.svg" alt="">
+                        </div>
+                    </div>
+                
+            </div>
+
+            <svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+                <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z"></path>
+            </svg>
+        </div>
+    </div>
+
+
+
+<script>
+  window.__XFTP_I18N__ = {
+    "title": "SimpleX File Transfer",
+    "dropZone": "Drag & drop a file here",
+    "dropZoneHint": "or",
+    "chooseFile": "Choose file",
+    "maxSizeHint": "Max 100 MB - <a href=\"#join-simplex\">SimpleX Chat app</a> supports files up to 1 GB",
+    "encrypting": "Encrypting…",
+    "uploading": "Uploading…",
+    "cancel": "Cancel",
+    "fileUploaded": "File uploaded",
+    "copy": "Copy",
+    "copied": "Copied!",
+    "share": "Share",
+    "expiryHint": "Files are typically available for 48 hours.",
+    "securityNote1": "Your file was encrypted in the browser - data routers never see file contents, name or size.",
+    "securityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "securityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "retry": "Retry",
+    "downloading": "Downloading…",
+    "decrypting": "Decrypting…",
+    "downloadComplete": "Download complete",
+    "download": "Download",
+    "fileTooLarge": "File too large (%size%). Maximum is 100 MB. The <a href=\"#join-simplex\">SimpleX app</a> supports files up to 1 GB.",
+    "fileEmpty": "File is empty.",
+    "invalidLink": "Invalid or corrupted link.",
+    "initError": "Failed to initialize: %error%",
+    "fileAvailable": "File available (~%size%)",
+    "dlSecurityNote1": "This file is encrypted - data routers never see file contents, name or size.",
+    "dlSecurityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "dlSecurityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "workersRequired": "Web Workers required — update your browser"
+  }
+</script>
+
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+<div id="address-portability" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Address portability</h1><div class="overlay-content"><p>Similarly to <a href="https://en.wikipedia.org/wiki/Local_number_portability">phone number portability</a> (the ability of the customer to transfer the service to another provider without changing the number), the address portability means the ability of a communication service customer to change the service provider without changing the service address. Many <a href="#federated-network">federated networks</a> support SRV records to provide address portability, but allowing service users to set up their own domains for the addresses is not as commonly supported by the available server and client software as for email.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="federated-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Federated network</h1><div class="overlay-content"><p>Federated network is provided by several entities that agree upon the standards and operate the network collectively. This allows the users to choose their provider, that will hold their account, their messaging history and contacts, and communicate with other providers' servers on behalf of the user. The examples are email, XMPP, Matrix and Mastodon.</p><p>The advantage of that design is that there is no single organization that all users depend on, and the standards are more difficult to change, unless it benefits all users. There are several disadvantages: 1) the innovation is slower, 2) each user account still depends on a single organization, and in most cases can't move to another provider without changing their network address – there is no <a href="#address-portability">address portability</a>, 3) the security and privacy are inevitably worse than with the centralized networks.</p><p><a href="https://en.wikipedia.org/wiki/Federation_(information_technology)">Federation on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="anonymous-credentials" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Anonymous credentials</h1><div class="overlay-content"><p>The credential that allows proving something, e.g. the right to access some resource, without identifying the user. This credential can either be generated by a trusted party or by the user themselves and provided together with the request to create the resource. The first approach creates some centralized dependency in most cases. The second approach does not require any trust - this is used in SimpleX network to authorize access to the messaging queues.</p><p><a href="https://en.wikipedia.org/wiki/Digital_credential">Digital credential on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="blockchain" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Blockchain</h1><div class="overlay-content"><p>In a wide sense, blockchain means a sequence of blocks of data, where each block contains a cryptographic hash of the previous block, thus providing integrity to the whole chain. Blockchains are used in many communication and information storage systems to provide integrity and immutability of the data. For example, BluRay disks use blockchain. SimpleX messaging queues also use blockchain - each message includes the hash of the previous message, to ensure the integrity – if any message is modified it will be detected by the recipient when the next message is received. Blockchains are a subset of <a href="#merkle-directed-acyclic-graph">Merkle directed acyclic graphs</a>.</p><p>In a more narrow sense, particularly in media, blockchain is used to refer specifically to distributed ledger, where each record also includes the hash of the previous record, but the blocks have to be agreed by the participating peers using some <a href="https://en.wikipedia.org/wiki/Consensus_(computer_science)">consensus protocol</a>.</p><p><a href="https://en.wikipedia.org/wiki/Blockchain">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="merkle-directed-acyclic-graph" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Merkle directed acyclic graph</h1><div class="overlay-content"><p>Also known as Merkle DAG, a data structure based on a general graph structure where node contains the cryptographic hashes of the previous nodes that point to it. Merkle trees are a subset of Merkle DAGs - in this case each leaf contains a cryptographic hash of the parent.</p><p>This structure by design allows to verify the integrity of the whole structure by computing its hashes and comparing with the hashes included in the nodes, in the same way as with <a href="#blockchain">blockchain</a>.</p><p>The motivation to use DAG in distributed environments instead of a simpler linear blockchain is to allow concurrent additions, when there is no requirement for a single order of added items. Merkle DAG is used, for example, in <a href="https://en.wikipedia.org/wiki/InterPlanetary_File_System">IPFS</a> and will be used in decentralized SimpleX groups.</p><p><a href="https://en.wikipedia.org/wiki/Merkle_tree">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="break-in-recovery" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Break-in recovery</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="double-ratchet-algorithm" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Double ratchet algorithm</h1><div class="overlay-content"><p>It is used by two parties to exchange <a href="#end-to-end-encryption">end-to-end encrypted</a> messages. The parties will use some <a href="#key-agreement-protocol">key agreement protocol</a> to agree on the initial shared secret key.</p><p>Double Ratchet algorithm provides <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>. It is <a href="https://signal.org/docs/specifications/doubleratchet">designed by Signal</a>, and used in SimpleX Chat and many other secure messengers. Most experts consider it the state-of-the-art encryption protocol in message encryption.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="centralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Centralized network</h1><div class="overlay-content"><p>Centralized networks are provided or controlled by a single entity. The examples are Threema, Signal, WhatsApp and Telegram. The advantage of that design is that the provider can innovate faster, and has a centralized approach to security. But the disadvantage is that the provider can change or discontinue the service, and leak, sell or disclose in some other way all users' data, including who they are connected with.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="content-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Content padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="decentralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Decentralized network</h1><div class="overlay-content"><p>Decentralized network is often used to mean "the network based on decentralized blockchain". In its original meaning, decentralized network means that there is no central authority or any other point of centralization in the network, other than network protocols specification. The advantage of decentralized networks is that they are resilient to censorship and to the provider going out of business. The disadvantage is that they are often slower to innovate, and the security may be worse than with the centralized network.</p><p>The examples of decentralized networks are email, web, DNS, XMPP, Matrix, BitTorrent, etc. All these examples have a shared global application-level address space. Cryptocurrency blockchains not only have a shared address space, but also a shared state, so they are more centralized than email. Tor network also has a shared global address space, but also a central authority. SimpleX network does not have a shared application-level address space (it relies on the shared transport-level addresses - SMP relay hostnames or IP addresses), and it does not have any central authority or any shared state.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="defense-in-depth" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Defense in depth</h1><div class="overlay-content"><p>Originally, it is a military strategy that seeks to delay rather than prevent the advance of an attacker, buying time and causing additional casualties by yielding space.</p><p>In information security, defense in depth represents the use of multiple computer security techniques to help mitigate the risk of one component of the defense being compromised or circumvented. An example could be anti-virus software installed on individual workstations when there is already virus protection on the firewalls and servers within the same environment.</p><p>SimpleX network applies defense in depth approach to security by having multiple layers for the communication security and privacy:</p><ul>
+<li>double ratchet algorithm for <a href="#end-to-end-encryption">end-to-end encryption</a> with <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>,</li>
+<li>additional layer of end-to-end encryption for each messaging queue and another encryption layer of encryption from the server to the recipient inside TLS to prevent correlation by ciphertext,</li>
+<li>TLS with only strong ciphers allowed,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-server connection via server offline certificate verification,</li>
+<li>mitigation of replay attacks via signing over transport channel binding,</li>
+<li>multiple layers of <a href="#message-padding">message padding</a> to reduce efficiency of traffic analysis,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-client out-of-band channel when sending the invitation,</li>
+<li>rotation of delivery queues to reduce efficiency of traffic analysis,</li>
+<li>etc.</li>
+</ul><p><a href="https://en.wikipedia.org/wiki/Defence_in_depth">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="end-to-end-encryption" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">End-to-end encryption</h1><div class="overlay-content"><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><p>End-to-end encryption requires agreeing cryptographic keys between the sender and the recipient in a way that no eavesdroppers can access the agreed keys. See <a href="#key-agreement-protocol">key agreement protocol</a>. This key exchange can be compromised via <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>, particularly if key exchange happens via the same communication provider and no out-of-band channel is used to verify key exchange.</p><p><a href="https://en.wikipedia.org/wiki/End-to-end_encryption">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-compromise-security" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-compromise security</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="man-in-the-middle-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Man-in-the-middle attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="message-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Message padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="key-agreement-protocol" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key agreement protocol</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="tooltip-end-to-end-encryption" class="glossary-tooltip"><div class="tooltip-content"><h4 class="tooltip-title">End-to-end encryption</h4><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><button class="read-more-btn open-overlay-btn" data-show-overlay="end-to-end-encryption">Read more</button></div></div><div id="key-exchange" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key exchange</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="mitm-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">MITM attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="non-repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Non-repudiation</h1><div class="overlay-content">Non-repudiation</div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="onion-routing" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Onion routing</h1><div class="overlay-content"><p>A technique for anonymous communication over a computer network that uses multiple layers of message encryption, analogous to the layers of an onion. The encrypted data is transmitted through a series of network nodes called "onion routers," each of which "peels" away a single layer, revealing the data's next destination. The sender remains anonymous because each intermediary knows only the location of the immediately preceding and following nodes.</p><p>The most widely used onion network is <a href="https://en.wikipedia.org/wiki/Tor_(network)">Tor</a>.</p><p>Some elements of SimpleX network use similar ideas in their design - different addresses for the same resource used by different parties, and additional encryption layers. Currently though, SimpleX messaging protocol does not protect sender network address, as the relay server is chosen by the recipient. The delivery relays chosen by sender that are planned for the future would make SimpleX design closer to onion routing.</p><p><a href="https://en.wikipedia.org/wiki/Onion_routing">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="overlay-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Overlay network</h1><div class="overlay-content"><p>Nodes in the overlay network can be thought of as being connected by virtual or logical links, each of which corresponds to a path, perhaps through many physical links, in the underlying network. Tor, for example, is an overlay network on top of IP network, which in its turn is also an overlay network over some underlying physical network.</p><p>SimpleX Clients also form a network using SMP relays and IP or some other overlay network (e.g., Tor), to communicate with each other. SMP relays, on another hand, do not form a network.</p><p><a href="https://en.wikipedia.org/wiki/Overlay_network">Wikipedia</a></p><h1>Non-repudiation</h1><p>The property of the cryptographic or communication system that allows the recipient of the message to prove to any third party that the sender identified by some cryptographic key sent the message. It is the opposite to <a href="#repudiation">repudiation</a>. While in some context non-repudiation may be desirable (e.g., for contractually binding messages), in the context of private communications it may be undesirable.</p><p><a href="https://en.wikipedia.org/wiki/Non-repudiation">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Repudiation</h1><div class="overlay-content"><p>The property of the cryptographic or communication system that allows the sender of the message to plausibly deny having sent the message, because while the recipient can verify that the message was sent by the sender, they cannot prove it to any third party - the recipient has a technical ability to forge the same encrypted message. This is an important quality of private communications, as it allows to have the conversation that can later be denied, similarly to having a private face-to-face conversation.</p><p>See also <a href="#non-repudiation">non-repudiation</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="pairwise-pseudonymous-identifier" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Pairwise pseudonymous identifier</h1><div class="overlay-content"><p>Generalizing <a href="https://csrc.nist.gov/glossary/term/pairwise_pseudonymous_identifier">the definition</a> from NIST Digital Identity Guidelines, it is an opaque unguessable identifier generated by a service used to access a resource by only one party.</p><p>In the context of SimpleX network, these are the identifiers generated by SMP relays to access anonymous messaging queues, with a separate identifier (and access credential) for each accessing party: recipient, sender and and optional notifications subscriber. The same approach is used by XFTP relays to access file chunks, with separate identifiers (and access credentials) for sender and each recipient.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Peer-to-peer</h1><div class="overlay-content"><p>Peer-to-peer (P2P) is the network architecture when participants have equal rights and communicate directly via a general purpose transport or overlay network. Unlike client-server architecture, all peers in a P2P network both provide and consume the resources. In the context of messaging, P2P architecture usually means that the messages are sent between peers, without user accounts or messages being stored on any servers. Examples are Tox, Briar, Cwtch and many others.</p><p>The advantage is that the participants do not depend on any servers. There are <a href="./SIMPLEX.md#comparison-with-p2p9-messaging-protocols">multiple downsides</a> to that architecture, such as no asynchronous message delivery, the need for network-wide peer addresses, possibility of network-wide attacks, that are usually mitigated only by using a centralized authority. These disadvantages are avoided with <a href="#proxied-peer-to-peer">proxied P2P</a> architecture.</p><p><a href="https://en.wikipedia.org/wiki/Peer-to-peer">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="proxied-peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Proxied peer-to-peer</h1><div class="overlay-content"><p>Network topology of the communication system when peers communicate via proxies that do not form the network themselves. Such design is used in Pond, that has a fixed home server for each user, and in SimpleX, that uses multiple relays providing temporary connections.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="perfect-forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Perfect forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-cryptography" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum cryptography</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-hybrid-crypto" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum hybrid crypto</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="recovery-from-compromise" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Recovery from compromise</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="user-identity" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">User identity</h1><div class="overlay-content"><p>In a communication system it refers to anything that uniquely identifies the users to the network. Depending on the communication network, it can be a phone number, email address, username, public key or a random opaque identifier. Most messaging networks rely on some form of user identity. SimpleX appears to be the only messaging network that does not rely on any kind of user identity - see <a href="https://en.wikipedia.org/wiki/Comparison_of_instant_messaging_protocols">this comparison</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div></body></html>
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+                                    19.3216 25.0173 19.3216C23.9563 19.3216 23.0902 20.1878 23.0902 21.2488Z" />
+                            </svg>
+                        </a>
+                        <a href="https://twitter.com/simplexchat" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 41 41" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M20.4575 40.9268C31.5032 40.9268 40.4575 31.9725 40.4575 20.9268C40.4575 9.88106 31.5032 0.926758 20.4575 0.926758C9.41182 0.926758 0.45752 9.88106 0.45752 20.9268C0.45752 31.9725 9.41182 40.9268 20.4575 40.9268ZM29.916 16.7766C29.916 23.1157 25.014 30.4265 16.0519 30.4265V30.423C13.4038 30.4265 10.8115 29.6795 8.58252 28.2719C8.96846 28.3174 9.35558 28.3397 9.74271 28.3409C11.9372 28.3432 14.0688 27.6182 15.7942 26.283C13.7101 26.2444 11.8802 24.9055 11.2425 22.9507C11.9716 23.0898 12.7245 23.0619 13.4418 22.869C11.1689 22.4165 9.53371 20.4504 9.53252 18.1671V18.1062C10.2106 18.478 10.9694 18.6835 11.7448 18.7057C9.60377 17.2981 8.94233 14.4948 10.2355 12.3026C12.7103 15.2992 16.3606 17.1207 20.2782 17.3147C19.8851 15.6487 20.4231 13.902 21.6878 12.7306C23.6507 10.9137 26.737 11.0073 28.5824 12.9387C29.6737 12.7271 30.7199 12.3327 31.677 11.7738C31.3125 12.8857 30.5513 13.828 29.5348 14.4277C30.5002
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+                            </svg>
+                        </a>
+                        <a href="https://www.linkedin.com/company/simplex-chat/" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 41 41" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M20.0408 0.926758C8.9951 0.926758 0.0407715 9.88109 0.0407715 20.9268C0.0407715 31.9724 8.9951 40.9268 20.0408 40.9268C31.0864 40.9268 40.0408 31.9724 40.0408 20.9268C40.0408 9.88109 31.0864 0.926758 20.0408 0.926758ZM9.6421 17.4916H14.1745V31.1098H9.6421V17.4916ZM14.4731 13.279C14.4437 11.9438 13.4889 10.9268 11.9383 10.9268C10.3878 10.9268 9.3741 11.9438 9.3741 13.279C9.3741 14.5866 10.3579 15.6328 11.8794 15.6328H11.9084C13.4889 15.6328 14.4731 14.5866 14.4731 13.279ZM25.3017 17.1718C28.2843 17.1718 30.5203 19.1187 30.5203 23.3015L30.5201 31.1098H25.9879V23.824C25.9879 21.994 25.3319 20.7453 23.6912 20.7453C22.439 20.7453 21.6932 21.5871 21.3656 22.4003C21.2458 22.6916 21.2164 23.0976 21.2164 23.5046V31.1101H16.6834C16.6834 31.1101 16.7431 18.7698 16.6834 17.492H21.2164V19.4208C21.8179 18.4936 22.8953 17.1718 25.3017 17.1718Z" />
+                            </svg>
+                        </a>
+                        <a href="https://simplex.chat/feed.rss" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 512 512" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M256 512C397.385 512 512 397.385 512 256C512 114.615 397.385 0 256 0C114.615 0 0 114.615 0 256C0 397.385 114.615 512 256 512ZM132.791 157.572C215.586 161.137 279.503 196.841 323.612 267.517C344.138 302.436 354.186 339.959 354.57 380.122H406.814C409.639 231.301 280.977 103.1 132.791 106.05V157.572ZM309.994 343.843C311.593 356.035 313.096 367.877 314.65 380.116H261.161C260.496 344.968 248.303 314.452 223.472 289.485C198.613 264.491 168.097 252.282 132.755 251.38V199.743C198.318 196.346 288.694 244.344 309.994 343.843ZM132.766 336.706C129.293 354.261 137.796 370.323 154.848 378.004L155.461 378.242C156.267 378.558 156.912 378.81 157.577 378.985C173.012 383.066 186.298 379.318 196.604 367.168C206.463 355.544 208.397 342.145 201.87 328.354C195.205 314.271 183.419 307.215 167.834 307.356C151.188 307.509 135.971 320.504 132.766 336.706Z" />
+                            </svg>
+                        </a>
+                    </div>
+                </div>
+            </article>
+        </div>
+        <a href="#" class="text-grey-black dark:text-white text-[16px] text-center lg:ltr:text-left lg:rtl:text-right font-medium leading-[28px] tracking-[0.01em] block mt-[60px]">© 2020-2025 SimpleX Chat | Projeto de Código Livre</a>
+    </div>
+</section>
+
+
+        <script src="/js/swiper-bundle.min.js"></script>
+        <script src="/js/script.js"></script>
+    </body>
+</html>
diff --git a/pt_BR/index.html b/pt_BR/index.html
index 2f72531c5e..af860459cc 100644
--- a/pt_BR/index.html
+++ b/pt_BR/index.html
@@ -153,6 +153,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/pt_BR/invitation/index.html b/pt_BR/invitation/index.html
index 9fa0aca8ce..c0adc9d114 100644
--- a/pt_BR/invitation/index.html
+++ b/pt_BR/invitation/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/pt_BR/messaging/index.html b/pt_BR/messaging/index.html
index 04548b4376..e24facc208 100644
--- a/pt_BR/messaging/index.html
+++ b/pt_BR/messaging/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/pt_BR/old/index.html b/pt_BR/old/index.html
index 81397dcad9..0c51da7835 100644
--- a/pt_BR/old/index.html
+++ b/pt_BR/old/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/pt_BR/why/index.html b/pt_BR/why/index.html
index 5dacc333b3..c546b25be7 100644
--- a/pt_BR/why/index.html
+++ b/pt_BR/why/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/reproduce/index.html b/reproduce/index.html
index 0b9a050398..1786f090eb 100644
--- a/reproduce/index.html
+++ b/reproduce/index.html
@@ -124,6 +124,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/ro/contact/index.html b/ro/contact/index.html
index c353cde305..45617e64b2 100644
--- a/ro/contact/index.html
+++ b/ro/contact/index.html
@@ -129,6 +129,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/ro/fdroid/index.html b/ro/fdroid/index.html
index ed6f8dc0e1..f93f9a861a 100644
--- a/ro/fdroid/index.html
+++ b/ro/fdroid/index.html
@@ -129,6 +129,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/ro/file/index.html b/ro/file/index.html
new file mode 100644
index 0000000000..e2706a67df
--- /dev/null
+++ b/ro/file/index.html
@@ -0,0 +1,884 @@
+<!DOCTYPE html>
+<html lang="ro"
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    >
+    <head>
+        <meta charset="UTF-8">
+        <meta http-equiv="X-UA-Compatible" content="IE=edge">
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        <title>SimpleX File Transfer</title>
+        <meta name="description" content="Send files securely with end-to-end encryption"/>
+        <meta name="Content-Type" content="text/html;charset=utf-8"/>
+        
+        <meta http-equiv="onion-location" content="http://isdb4l77sjqoy2qq7ipum6x3at6hyn3jmxfx4zdhc72ufbmuq4ilwkqd.onion/" />
+        <meta property="og:url" content="https://simplex.chat/" />
+        
+        <meta property="og:type" content="website"/>
+        <meta property="og:title" content="SimpleX File Transfer"/>
+        <meta property="og:description" content="Send files securely with end-to-end encryption"/>
+        <meta property="og:image" content="https://simplex.chat/img/share_simplex.jpg"/>
+        <meta name="twitter:card" content="summary"/>
+        <link rel="icon" type="image/png" sizes="96x96" href="/img/favicon.ico"/>
+
+        <link rel="stylesheet" href="/css/swiper-bundle.min.css">
+        <link rel="stylesheet" href="/css/blog.css">
+        <link href="/css/tailwind.css" rel="stylesheet"/>
+        <link rel="stylesheet" href="/css/style.css">
+        <link rel="stylesheet" href="/css/design3-nav.css">
+        <script async defer src="https://buttons.github.io/buttons.js"></script>
+        <script src="/js/flag-anchor.js"></script>
+        
+    </head>
+    <body class="bg-[#F3FAFF] dark:bg-[#000832]">
+        
+
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+
+<header id="navbar">
+    <a href="/ro" class="logo logo-light ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-light.png" alt="logo"></a>
+    <a href="/ro" class="logo logo-dark ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-dark.png" alt="logo"></a>
+
+    <nav id="menu">
+        <ul>
+            <li class="nav-link ">
+                <a href="/ro">
+                    <span class="nav-link-text">Acasă</span>
+                </a>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/directory/">
+                    <span class="nav-link-text">Directory</span>
+                </a>
+            </li>
+
+            
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">Guide</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    
+                        <li><a href="/docs/guide/readme.html" class="">Quick start</a></li>
+                    
+                        <li><a href="/docs/guide/send-messages.html" class="">Sending messages</a></li>
+                    
+                        <li><a href="/docs/guide/secret-groups.html" class="">Secret groups</a></li>
+                    
+                        <li><a href="/docs/guide/chat-profiles.html" class="">Chat profiles</a></li>
+                    
+                        <li><a href="/docs/guide/managing-data.html" class="">Managing data</a></li>
+                    
+                        <li><a href="/docs/guide/audio-video-calls.html" class="">Audio & video Calls</a></li>
+                    
+                        <li><a href="/docs/guide/privacy-security.html" class="">Privacy & security</a></li>
+                    
+                        <li><a href="/docs/guide/app-settings.html" class="">App settings</a></li>
+                    
+                        <li><a href="/docs/guide/making-connections.html" class="">Making connections</a></li>
+                    
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">Referință</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md"
+                        target="_blank">Whitepaper
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/privacy">Politică de confidențialitate</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/simplex-messaging.md"
+                        target="_blank">Protocolul SMP
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/protocol/simplex-chat.html">Protocol de chat</a></li>
+                    <li><a href="/docs/glossary.html">Glossary</a></li>
+
+                    <hr>
+
+                    
+                        <li><a href="/docs/simplex.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX network</a></li>
+                    
+                        <li><a href="/docs/business.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX for business</a></li>
+                    
+                        <li><a href="/docs/directory.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX Directory</a></li>
+                    
+                        <li><a href="/docs/android.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Accessing Android files</a></li>
+                    
+                        <li><a href="/docs/server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Host SMP Server</a></li>
+                    
+                        <li><a href="/docs/xftp-server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Host XFTP Server</a></li>
+                    
+                        <li><a href="/docs/webrtc.html" class=" lg:px-[20px] inline-block whitespace-nowrap">WebRTC servers</a></li>
+                    
+                        <li><a href="/downloads/" class=" lg:px-[20px] inline-block whitespace-nowrap">Downloads</a></li>
+                    
+                        <li><a href="/reproduce/" class=" lg:px-[20px] inline-block whitespace-nowrap">Verify & reproduce builds</a></li>
+                    
+                        <li><a href="/transparency/" class=" lg:px-[20px] inline-block whitespace-nowrap">Transparency</a></li>
+                    
+                        <li><a href="/security/" class=" lg:px-[20px] inline-block whitespace-nowrap">Security</a></li>
+                    
+                        <li><a href="/faq/" class=" lg:px-[20px] inline-block whitespace-nowrap">FAQ</a></li>
+                    
+
+                    <hr>
+
+                    <li><a href="/docs/translations.html"
+                    >Translate SimpleX Chat
+                    </a></li>
+                    <li><a href="/docs/android.html"
+                    >Accessing Android files
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/blob/stable/apps/simplex-bot-advanced/Main.hs"
+                        target="_blank">Exemplu de bot de chat
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/tree/stable/packages/simplex-chat-client/typescript"
+                        target="_blank">TypeScript SDK
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/cli.html">Terminal CLI</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq"
+                        target="_blank">SimpleXMQ
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/blog">
+                    <span class="nav-link-text">Blog</span>
+                </a>
+            </li>
+        </ul>
+    </nav>
+
+    <div class="right-links">
+        
+            <a class="box-btn token md:hidden" href="/donate">
+                Donează
+            </a>
+        
+        <button href="#" class="theme-switch-btn">
+            <svg class="sun" width="469" height="469" viewBox="0 0 469 469" fill="none" xmlns="http://www.w3.org/2000/svg">
+            <path d="M225.768 1.44594C220.301 3.84594 214.701 10.6459 213.768 15.9793C213.234 18.3793 213.101 31.7126 213.368 45.7126L213.768 71.1793L217.634 76.1126C226.701 88.1126 242.968 87.5793 252.301 75.0459C254.968 71.5793 255.101 69.5793 255.101 42.2459C255.101 14.9126 254.968 12.9126 252.301 9.44594C250.834 7.44594 248.034 4.51261 246.168 3.17928C241.768 -0.154057 231.101 -1.08739 225.768 1.44594Z"/>
+            <path d="M72.9687 65.3128C63.7687 71.5794 60.1687 81.4461 63.7687 91.1794C65.502 95.4461 98.702 129.446 104.035 132.379C106.035 133.446 110.569 134.246 114.035 134.246C126.035 134.246 134.435 125.846 134.435 113.846C134.435 110.379 133.635 105.846 132.569 103.846C129.635 98.5128 95.6353 65.3128 91.3687 63.5794C85.102 61.3128 77.902 61.9794 72.9687 65.3128Z"/>
+            <path d="M377.102 63.7128C373.102 65.3128 338.969 98.7794 336.302 103.846C335.236 105.846 334.436 110.379 334.436 113.846C334.436 125.846 342.836 134.246 354.836 134.246C358.302 134.246 362.836 133.446 364.836 132.379C370.169 129.446 403.369 95.4461 405.102 91.1794C408.702 81.4461 405.102 71.5794 395.902 65.3128C391.102 61.9794 383.102 61.3128 377.102 63.7128Z"/>
+            <path d="M211.635 108.246C185.635 113.179 163.502 125.046 144.302 144.112C117.902 170.512 104.968 203.579 106.835 240.246C109.768 297.712 149.102 344.912 205.902 359.179C218.568 362.379 250.302 362.379 262.968 359.179C310.435 347.312 345.768 312.646 358.702 265.046C362.435 251.446 362.835 219.446 359.368 205.712C347.368 158.112 312.302 122.379 265.235 110.112C251.768 106.512 225.502 105.579 211.635 108.246Z"/>
+            <path d="M12.4349 214.779C-0.498477 220.379 -4.09848 237.579 5.23486 248.246C11.2349 255.046 15.6349 255.846 45.3682 255.313C74.0349 254.913 75.1015 254.646 81.6349 245.713C85.9015 239.979 85.5015 228.113 80.8349 221.979C74.4349 213.713 71.2349 212.913 42.1682 212.913C23.7682 213.046 15.2349 213.579 12.4349 214.779Z"/>
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+            <path d="M103.101 336.779C96.7013 340.779 65.368 373.179 63.768 377.313C57.368 394.513 74.168 411.313 91.368 404.913C95.6347 403.179 129.635 369.979 132.568 364.646C135.368 359.446 134.968 349.046 131.768 343.846C126.168 334.646 112.035 331.179 103.101 336.779Z"/>
+            <path d="M344.035 336.912C341.635 338.379 338.569 341.445 337.102 343.845C333.902 349.045 333.502 359.445 336.302 364.645C339.235 369.979 373.235 403.179 377.502 404.912C387.235 408.512 397.102 404.912 403.369 395.712C406.702 390.779 407.369 383.579 405.102 377.312C403.369 373.045 370.169 339.045 364.835 336.112C359.635 333.312 349.235 333.712 344.035 336.912Z"/>
+            <path d="M225.368 385.712C222.968 387.046 219.368 390.112 217.368 392.646L213.768 397.312V426.379C213.768 458.246 213.901 458.779 222.968 465.446C228.168 469.312 240.701 469.312 245.901 465.446C254.834 458.779 255.101 457.979 255.501 428.246C256.034 397.579 255.234 394.379 246.834 387.979C241.101 383.579 231.634 382.512 225.368 385.712Z"/>
+            </svg>
+
+            <svg class="moon" width="469" height="469" viewBox="5 5 20 23" xmlns="http://www.w3.org/2000/svg">
+                <path d="M10.895 7.574c0 7.55 5.179 13.67 11.567 13.67 1.588 0 3.101-0.38 4.479-1.063-1.695 4.46-5.996 7.636-11.051 7.636-6.533 0-11.83-5.297-11.83-11.83 0-4.82 2.888-8.959 7.023-10.803-0.116 0.778-0.188 1.573-0.188 2.39z"></path>
+            </svg>
+        </button>
+
+        
+
+        <button id="cross-btn" class="nav-toggle-btn">
+            <svg id="cross" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+            <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z" />
+        </svg>
+        </button>
+    </div>
+</header>
+<div id="mobile-header">
+    <a href="/ro" class="logo flex dark:hidden ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-light.svg" alt="" srcset=""></a>
+    <a href="/ro" class="logo hidden dark:flex ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-dark.svg" alt="" srcset=""></a>
+
+    <button id="hamburger" class="nav-toggle-btn">
+        <svg viewBox="0 0 100 80" width="36" height="36">
+            <rect width="100" height="15"></rect>
+            <rect y="30" width="100" height="15"></rect>
+            <rect y="60" width="100" height="15"></rect>
+        </svg>
+    </button>
+</div>
+
+
+<script>
+// switch theme
+const sunIcon = document.querySelector('.sun');
+const moonIcon = document.querySelector('.moon');
+
+const userTheme = localStorage.getItem('theme');
+const systemTheme = window.matchMedia('(prefers-color-scheme: dark)').matches;
+const prismThemeLink = document.getElementById('prism-theme')
+
+function iconToggle () {
+    sunIcon.classList.toggle('hidden');
+    moonIcon.classList.toggle('hidden');
+}
+
+function themeCheck() {
+    if (userTheme === 'dark' || (!userTheme && systemTheme)) {
+        document.documentElement.classList.add('dark');
+        moonIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+    }
+    else{
+        sunIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+    }
+}
+themeCheck();
+
+function themeSwitch () {
+    if (document.documentElement.classList.contains('dark')) {
+        document.documentElement.classList.remove('dark');
+        localStorage.setItem('theme', 'light');
+        if(prismThemeLink){
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+        iconToggle();
+    } else {
+        document.documentElement.classList.add('dark');
+        localStorage.setItem('theme', 'dark');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+        iconToggle();
+    }
+}
+
+const nav = document.querySelector('header#navbar');
+
+window.addEventListener('click',(e)=>{
+    if(e.target.closest('.nav-link')){
+        if(e.target.closest('.nav-link').classList.contains('active')){
+            e.target.closest('.nav-link').classList.remove('active');
+        }
+        else{
+            document.querySelectorAll('.nav-link').forEach(el => el.classList.remove('active'))
+            e.target.closest('.nav-link').classList.add('active');
+        }
+    }
+    else if(e.target.closest('.nav-toggle-btn')){
+        if(nav.classList.contains('open')){
+            nav.classList.remove('open');
+            document.getElementById('mobile-header').classList.remove('nav-open');
+            document.documentElement.classList.remove('lock-scroll');
+        }
+        else{
+            document.documentElement.classList.add('lock-scroll');
+            document.getElementById('mobile-header').classList.add('nav-open');
+            nav.classList.add('open');
+        }
+    }
+    else if(e.target.closest('.theme-switch-btn')){
+        themeSwitch();
+    }
+});
+</script>
+
+        <html><head><link rel="stylesheet" href="/file-assets/index.css">
+<style>
+  /* Reset website .card styles that conflict with xftp bundle */
+  #app .card { cursor: default; }
+  #app .card,
+  #app .card > div { transition: unset; height: auto; }
+  #app .card > div > * { opacity: unset; max-height: unset; transform: unset; transition: unset; }
+
+  /* Align xftp bundle with website design */
+  #app { font-family: inherit; color: #3F484B; max-width: 600px; width: 100%; margin: 0 auto; padding: 0; }
+  #app .card { background: transparent; box-shadow: none; padding: 0; border-radius: 0; }
+  #app .card > h1 { display: none; }
+  .dark #app h1 { color: #fff; }
+  #app .drop-zone { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; }
+  #app .drop-zone.drag-over { border-color: #0053D0; background: #DBEEFF; }
+  #app .btn { background: #0053D0; border-radius: 34px; padding: 12px 32px; font-size: .9rem; font-weight: 600; }
+  #app .btn:hover { background: #1661D1; }
+  #app .btn-secondary { background: #6b7280; border-radius: 34px; }
+  #app .hint { color: #6b7280; }
+  #app .link-row input { border-radius: 8px; border-color: #c5d3de; }
+  #app .security-note { background: #ffffff; border-radius: 12px; color: #3F484B; }
+  #app .security-note a { color: #0197FF; }
+  #app .success { color: #0053D0; }
+
+  .dark #app { color: #e5e7eb; }
+  .dark #app .card { background: transparent; box-shadow: none; }
+  .dark #app .drop-zone { border-color: #374151; }
+  .dark #app .drop-zone.drag-over { border-color: #70F0F9; background: #1B325C; }
+  .dark #app .btn { background: #70F0F9; color: #000832; }
+  .dark #app .btn:hover { background: #66D9E2; }
+  .dark #app .link-row input { border-color: #374151; background: #071C46; color: #e5e7eb; }
+  .dark #app .security-note { background: #0B2A59; color: #d1d5db; }
+  .dark #app .security-note a { color: #70F0F9; }
+  .dark #app .success { color: #70F0F9; }
+
+  #app #upload-error { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; text-align: center; }
+  .dark #app #upload-error { border-color: #374151; }
+
+  #app .stage > .btn { margin-top: 20px; }
+  #app .security-note { margin-top: 20px; }
+  #app .drop-zone .btn { margin: 10px 0 16px; }
+
+  /* Protocol overlay: image fixed, text scrolls natively */
+  /* Push popup below navbar at all widths */
+  #xftp-protocol { padding-top: 70px; }
+  #xftp-protocol .overlay-card {
+    display: flex;
+    flex-direction: column;
+    position: relative;
+    overflow: hidden;
+  }
+  @media (min-width: 768px) {
+    #xftp-protocol .overlay-card { max-height: min(660px, 100%); }
+  }
+  #xftp-protocol .overlay-card > h1 {
+    flex-shrink: 0;
+    padding-bottom: 16px;
+    margin-bottom: 0;
+    z-index: 1;
+  }
+  @media (min-width: 1024px) and (max-height: 750px) {
+    #xftp-protocol .overlay-card > h1 {
+      font-size: 22px;
+    }
+  }
+  /* .flex is the full-width scroll container */
+  #xftp-protocol .overlay-card > .flex {
+    flex: 1;
+    min-height: 0;
+    overflow-y: auto;
+    scrollbar-width: thin;
+    scrollbar-color: #c5d3de transparent;
+  }
+  .dark #xftp-protocol .overlay-card > .flex {
+    scrollbar-color: #374151 transparent;
+  }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar { width: 6px; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-track { background: transparent; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #c5d3de; border-radius: 3px; }
+  .dark #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #374151; }
+  /* Desktop: text stays left, image fixed on right */
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card > .flex > div:first-child {
+      max-width: 50%;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child {
+      position: absolute;
+      right: 56px;
+      top: 0;
+      bottom: 0;
+      left: 55%;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      pointer-events: none;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child > div {
+      height: 100%;
+      padding: 40px 0;
+      box-sizing: border-box;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child img {
+      height: 100%;
+    }
+  }
+  #xftp-protocol .close-overlay-btn {
+    position: absolute;
+    top: 24px;
+    right: 24px;
+    cursor: pointer;
+    z-index: 3;
+    fill: #606C71;
+  }
+  .dark #xftp-protocol .close-overlay-btn { fill: #e5e7eb; }
+  /* Scroll fade: gradient over text area only, hidden at bottom */
+  #xftp-protocol .overlay-card::after {
+    content: '';
+    position: absolute;
+    bottom: 40px;
+    left: 24px;
+    right: 24px;
+    height: 48px;
+    background: linear-gradient(rgba(255,255,255,0), #fff);
+    pointer-events: none;
+    z-index: 2;
+    transition: opacity 0.2s;
+  }
+  .dark #xftp-protocol .overlay-card::after {
+    background: linear-gradient(rgba(7,28,70,0), #071C46);
+  }
+  @media (min-width: 640px) {
+    #xftp-protocol .overlay-card::after { bottom: 56px; left: 56px; right: 56px; }
+  }
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card::after { right: 55%; }
+  }
+  #xftp-protocol.scrolled-bottom .overlay-card::after { opacity: 0; }
+  #xftp-protocol .overlay-card.flex,
+  #xftp-protocol.flex .overlay-card { animation: overlaySlideIn 0.25s ease-out; }
+  @keyframes overlaySlideIn {
+    from { opacity: 0; transform: scale(0.95) translateY(10px); }
+    to { opacity: 1; transform: scale(1) translateY(0); }
+  }
+  #xftp-protocol.overlay-closing { animation: overlayFadeOut 0.2s ease-in forwards; }
+  #xftp-protocol.overlay-closing .overlay-card { animation: overlaySlideOut 0.2s ease-in forwards; }
+  @keyframes overlayFadeOut {
+    from { opacity: 1; }
+    to { opacity: 0; }
+  }
+  @keyframes overlaySlideOut {
+    from { opacity: 1; transform: scale(1) translateY(0); }
+    to { opacity: 0; transform: scale(0.95) translateY(10px); }
+  }
+
+  .file-proto-link {
+    font-size: 1.25rem;
+    font-weight: 600;
+    background: linear-gradient(90deg, #001aa7 0%, #0095e7 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+    text-decoration: none;
+  }
+  .dark .file-proto-link {
+    background: linear-gradient(90deg, #019bfe 0%, #64fdff 58%, #c8feff 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+  }
+
+</style>
+
+</head><body><section class="bg-secondary-bg-light dark:bg-primary-bg-dark py-10 mt-[66px] px-5">
+  <div class="container flex flex-col items-center mx-auto">
+    <noscript>
+      <p class="text-center text-grey-black dark:text-white py-10">
+        JavaScript is required for file transfer.
+      </p>
+    </noscript>
+    <h1 class="text-[38px] text-center font-bold text-active-blue mb-8">SimpleX File Transfer</h1>
+    <div id="app" data-xftp-app="" data-no-hashchange="" class="w-full">
+      <div class="card">
+        <div class="drop-zone">
+          <p>Drag &amp; drop a file here</p>
+          <p class="hint">or</p>
+          <span class="btn">Choose file</span>
+          <p class="hint">Max 100 MB - <a href="#join-simplex">SimpleX Chat app</a> supports files up to 1 GB</p>
+        </div>
+      </div>
+    </div>
+    <template id="dl-placeholder">
+      <div class="card">
+        <h1>SimpleX File Transfer</h1>
+        <div class="stage">
+          <p>File available</p>
+          <button class="btn">Download</button>
+          <div class="security-note">
+            <p>This file is encrypted - data routers never see file contents, name or size.</p>
+            <p>The encryption key is in the link’s hash fragment - it is never sent to any server.</p>
+            <p>For better security, use <a href="https://simplex.chat/download">SimpleX Chat</a> app.</p>
+          </div>
+        </div>
+      </div>
+    </template>
+    <script>if(location.hash.length>50){var a=document.getElementById("app"),t=document.getElementById("dl-placeholder");if(a&&t)a.replaceChildren(t.content.cloneNode(true))}</script>
+    <script type="module" src="/file-assets/index.js"></script>
+
+    <p class="text-base text-center text-grey-black dark:text-white mt-10 max-w-[600px]">Send files securely with <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span> — no accounts, no tracking.</p>
+    <a href="javascript:void(0)" data-show-overlay="xftp-protocol" class="open-overlay-btn file-proto-link mt-3 block text-center">Learn more about XFTP protocol</a>
+  </div>
+</section>
+
+<section class="bg-primary-bg-light dark:bg-secondary-bg-dark py-[90px] px-5">
+  <div class="container flex flex-col items-center mx-auto text-center">
+    <h2 class="text-[35px] leading-[45px] md:text-[45px] md:leading-[55px] text-grey-black dark:text-white font-bold mb-5">
+      Get SimpleX Chat — the most secure &amp; private messenger
+    </h2>
+    <p class="text-base text-grey-black dark:text-white mb-14 max-w-[600px]">
+      The file transfer you just used uses the same data routing protocol as SimpleX Chat. The app has end-to-end encrypted messaging, voice and video calls, groups, and sending files. No account. No phone. No email. No user profile IDs.
+    </p>
+    <div class="flex items-center justify-center gap-4 flex-wrap">
+      <a href="https://apps.apple.com/us/app/simplex-chat/id1605771084" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apple_store.svg"></a>
+      <a href="https://play.google.com/store/apps/details?id=chat.simplex.app" target="_blank"><img class="h-[40px] w-auto" src="/img/new/google_play.svg"></a>
+      <a href="/ro/fdroid"><img class="h-[40px] w-auto" src="/img/new/f_droid.svg"></a>
+      <a href="https://testflight.apple.com/join/DWuT2LQu" target="_blank"><img class="h-[40px] w-auto" src="/img/new/testflight.png"></a>
+      <a href="https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-aarch64.apk" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apk_icon.png"></a>
+    </div>
+  </div>
+</section>
+
+
+  
+    
+    <div id="xftp-protocol" data-scroll-to="" class="overlay hidden fixed top-0 left-0 bottom-0 right-0 before:absolute before:w-full before:h-full bg-transparent before:bg-secondary-bg-light dark:before:bg-primary-bg-dark before:opacity-90 items-center justify-center p-3 md:p-10 z-[10000]">
+        <div class="overlay-card w-full md:w-fit md:max-w-[1276px] bg-white dark:bg-card-bg-dark opacity-100 h-full md:h-fit md:max-h-[660px] z-[10001] rounded-md shadow-[0px_3px_12px_rgba(0,0,0,0.2)] p-6 py-10 sm:p-14 overflow-auto scale-100">
+            <h1 class="text-3xl font-bold text-active-blue mb-6 ">XFTP protocol: the most secure file transfer</h1>
+            <div class="flex flex-col-reverse lg:flex-row gap-10 justify-between">
+                
+                    <div class="lg:max-w-[448px]">
+                        <div class="text-grey-black dark:text-white flex flex-col gap-6 text-base">
+                            <div>
+  <h3 class="font-bold text-lg mb-2">No account required</h3>
+  <p>Each file fragment uses a new random key. Data routers have no "users" or "files" - they transfer encrypted file fragments of fixed sizes.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Triple-encrypted in your browser</h3>
+  <p>File encryption key is present only in the URL hash fragment - your browser never sends it to a server. There are 3 encryption layers: TLS transport, per-recipient encryption (unique ephemeral key per transfer), and file <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span>.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Independent data routers</h3>
+  <p>When file is split to fragments, it is sent via network routers operated by independent parties. No operator can see the actual file size or name. Even if a router is compromised, it can only see encrypted fragments of fixed size. File fragments are cached by network routers for approximately 48 hours.</p>
+</div>
+<p class="mt-4">
+  <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/xftp.md" target="_blank" rel="noopener" class="text-active-blue hover:underline">
+    Read the XFTP protocol specification →
+  </a>
+</p>
+
+                        </div>
+                    </div>
+                
+
+                
+                    <div class="max-w-[448px]">
+                        <div class="flex items-center justify-center">
+                            <img class="w-full max-w-[448px] min-w-[300px] dark:hidden" src="/img/new/xftp-protocol.svg" alt="">
+                            <img class="w-full max-w-[448px] min-w-[300px] hidden dark:block" src="/img/new/xftp-protocol-dark.svg" alt="">
+                        </div>
+                    </div>
+                
+            </div>
+
+            <svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+                <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z"></path>
+            </svg>
+        </div>
+    </div>
+
+
+
+<script>
+  window.__XFTP_I18N__ = {
+    "title": "SimpleX File Transfer",
+    "dropZone": "Drag & drop a file here",
+    "dropZoneHint": "or",
+    "chooseFile": "Choose file",
+    "maxSizeHint": "Max 100 MB - <a href=\"#join-simplex\">SimpleX Chat app</a> supports files up to 1 GB",
+    "encrypting": "Encrypting…",
+    "uploading": "Uploading…",
+    "cancel": "Cancel",
+    "fileUploaded": "File uploaded",
+    "copy": "Copy",
+    "copied": "Copied!",
+    "share": "Share",
+    "expiryHint": "Files are typically available for 48 hours.",
+    "securityNote1": "Your file was encrypted in the browser - data routers never see file contents, name or size.",
+    "securityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "securityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "retry": "Retry",
+    "downloading": "Downloading…",
+    "decrypting": "Decrypting…",
+    "downloadComplete": "Download complete",
+    "download": "Download",
+    "fileTooLarge": "File too large (%size%). Maximum is 100 MB. The <a href=\"#join-simplex\">SimpleX app</a> supports files up to 1 GB.",
+    "fileEmpty": "File is empty.",
+    "invalidLink": "Invalid or corrupted link.",
+    "initError": "Failed to initialize: %error%",
+    "fileAvailable": "File available (~%size%)",
+    "dlSecurityNote1": "This file is encrypted - data routers never see file contents, name or size.",
+    "dlSecurityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "dlSecurityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "workersRequired": "Web Workers required — update your browser"
+  }
+</script>
+
+<script>
+  // Intercept close for #xftp-protocol to add fade-out animation
+  document.getElementById('xftp-protocol')?.addEventListener('click', function(e) {
+    if (e.target.closest('.close-overlay-btn') || (e.target.closest('.overlay') && !e.target.closest('.overlay-card'))) {
+      e.stopPropagation();
+      var el = document.getElementById('xftp-protocol');
+      el.classList.add('overlay-closing');
+      el.addEventListener('animationend', function handler() {
+        el.removeEventListener('animationend', handler);
+        el.classList.remove('flex', 'overlay-closing');
+        el.classList.add('hidden');
+        document.body.classList.remove('lock-scroll');
+        history.replaceState(null, null, ' ');
+      });
+    }
+  }, true);
+
+  // Hide scroll fade gradient when text bottom is visible (works with column-reverse)
+  var scrollArea = document.querySelector('#xftp-protocol .overlay-card > .flex');
+  if (scrollArea) {
+    var textCol = scrollArea.querySelector(':scope > div:first-child > div');
+    function checkScrollBottom() {
+      if (!textCol) return;
+      var scrollRect = scrollArea.getBoundingClientRect();
+      if (scrollRect.height === 0) return; // not laid out yet
+      var textBottom = textCol.getBoundingClientRect().bottom;
+      document.getElementById('xftp-protocol').classList.toggle('scrolled-bottom', textBottom <= scrollRect.bottom + 10);
+    }
+    scrollArea.addEventListener('scroll', checkScrollBottom);
+    new MutationObserver(function() {
+      if (!document.getElementById('xftp-protocol').classList.contains('hidden')) {
+        requestAnimationFrame(checkScrollBottom);
+      }
+    }).observe(document.getElementById('xftp-protocol'), { attributes: true, attributeFilter: ['class'] });
+  }
+</script>
+
+<div id="address-portability" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Address portability</h1><div class="overlay-content"><p>Similarly to <a href="https://en.wikipedia.org/wiki/Local_number_portability">phone number portability</a> (the ability of the customer to transfer the service to another provider without changing the number), the address portability means the ability of a communication service customer to change the service provider without changing the service address. Many <a href="#federated-network">federated networks</a> support SRV records to provide address portability, but allowing service users to set up their own domains for the addresses is not as commonly supported by the available server and client software as for email.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="federated-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Federated network</h1><div class="overlay-content"><p>Federated network is provided by several entities that agree upon the standards and operate the network collectively. This allows the users to choose their provider, that will hold their account, their messaging history and contacts, and communicate with other providers' servers on behalf of the user. The examples are email, XMPP, Matrix and Mastodon.</p><p>The advantage of that design is that there is no single organization that all users depend on, and the standards are more difficult to change, unless it benefits all users. There are several disadvantages: 1) the innovation is slower, 2) each user account still depends on a single organization, and in most cases can't move to another provider without changing their network address – there is no <a href="#address-portability">address portability</a>, 3) the security and privacy are inevitably worse than with the centralized networks.</p><p><a href="https://en.wikipedia.org/wiki/Federation_(information_technology)">Federation on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="anonymous-credentials" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Anonymous credentials</h1><div class="overlay-content"><p>The credential that allows proving something, e.g. the right to access some resource, without identifying the user. This credential can either be generated by a trusted party or by the user themselves and provided together with the request to create the resource. The first approach creates some centralized dependency in most cases. The second approach does not require any trust - this is used in SimpleX network to authorize access to the messaging queues.</p><p><a href="https://en.wikipedia.org/wiki/Digital_credential">Digital credential on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="blockchain" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Blockchain</h1><div class="overlay-content"><p>In a wide sense, blockchain means a sequence of blocks of data, where each block contains a cryptographic hash of the previous block, thus providing integrity to the whole chain. Blockchains are used in many communication and information storage systems to provide integrity and immutability of the data. For example, BluRay disks use blockchain. SimpleX messaging queues also use blockchain - each message includes the hash of the previous message, to ensure the integrity – if any message is modified it will be detected by the recipient when the next message is received. Blockchains are a subset of <a href="#merkle-directed-acyclic-graph">Merkle directed acyclic graphs</a>.</p><p>In a more narrow sense, particularly in media, blockchain is used to refer specifically to distributed ledger, where each record also includes the hash of the previous record, but the blocks have to be agreed by the participating peers using some <a href="https://en.wikipedia.org/wiki/Consensus_(computer_science)">consensus protocol</a>.</p><p><a href="https://en.wikipedia.org/wiki/Blockchain">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="merkle-directed-acyclic-graph" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Merkle directed acyclic graph</h1><div class="overlay-content"><p>Also known as Merkle DAG, a data structure based on a general graph structure where node contains the cryptographic hashes of the previous nodes that point to it. Merkle trees are a subset of Merkle DAGs - in this case each leaf contains a cryptographic hash of the parent.</p><p>This structure by design allows to verify the integrity of the whole structure by computing its hashes and comparing with the hashes included in the nodes, in the same way as with <a href="#blockchain">blockchain</a>.</p><p>The motivation to use DAG in distributed environments instead of a simpler linear blockchain is to allow concurrent additions, when there is no requirement for a single order of added items. Merkle DAG is used, for example, in <a href="https://en.wikipedia.org/wiki/InterPlanetary_File_System">IPFS</a> and will be used in decentralized SimpleX groups.</p><p><a href="https://en.wikipedia.org/wiki/Merkle_tree">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="break-in-recovery" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Break-in recovery</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="double-ratchet-algorithm" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Double ratchet algorithm</h1><div class="overlay-content"><p>It is used by two parties to exchange <a href="#end-to-end-encryption">end-to-end encrypted</a> messages. The parties will use some <a href="#key-agreement-protocol">key agreement protocol</a> to agree on the initial shared secret key.</p><p>Double Ratchet algorithm provides <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>. It is <a href="https://signal.org/docs/specifications/doubleratchet">designed by Signal</a>, and used in SimpleX Chat and many other secure messengers. Most experts consider it the state-of-the-art encryption protocol in message encryption.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="centralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Centralized network</h1><div class="overlay-content"><p>Centralized networks are provided or controlled by a single entity. The examples are Threema, Signal, WhatsApp and Telegram. The advantage of that design is that the provider can innovate faster, and has a centralized approach to security. But the disadvantage is that the provider can change or discontinue the service, and leak, sell or disclose in some other way all users' data, including who they are connected with.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="content-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Content padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="decentralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Decentralized network</h1><div class="overlay-content"><p>Decentralized network is often used to mean "the network based on decentralized blockchain". In its original meaning, decentralized network means that there is no central authority or any other point of centralization in the network, other than network protocols specification. The advantage of decentralized networks is that they are resilient to censorship and to the provider going out of business. The disadvantage is that they are often slower to innovate, and the security may be worse than with the centralized network.</p><p>The examples of decentralized networks are email, web, DNS, XMPP, Matrix, BitTorrent, etc. All these examples have a shared global application-level address space. Cryptocurrency blockchains not only have a shared address space, but also a shared state, so they are more centralized than email. Tor network also has a shared global address space, but also a central authority. SimpleX network does not have a shared application-level address space (it relies on the shared transport-level addresses - SMP relay hostnames or IP addresses), and it does not have any central authority or any shared state.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="defense-in-depth" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Defense in depth</h1><div class="overlay-content"><p>Originally, it is a military strategy that seeks to delay rather than prevent the advance of an attacker, buying time and causing additional casualties by yielding space.</p><p>In information security, defense in depth represents the use of multiple computer security techniques to help mitigate the risk of one component of the defense being compromised or circumvented. An example could be anti-virus software installed on individual workstations when there is already virus protection on the firewalls and servers within the same environment.</p><p>SimpleX network applies defense in depth approach to security by having multiple layers for the communication security and privacy:</p><ul>
+<li>double ratchet algorithm for <a href="#end-to-end-encryption">end-to-end encryption</a> with <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>,</li>
+<li>additional layer of end-to-end encryption for each messaging queue and another encryption layer of encryption from the server to the recipient inside TLS to prevent correlation by ciphertext,</li>
+<li>TLS with only strong ciphers allowed,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-server connection via server offline certificate verification,</li>
+<li>mitigation of replay attacks via signing over transport channel binding,</li>
+<li>multiple layers of <a href="#message-padding">message padding</a> to reduce efficiency of traffic analysis,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-client out-of-band channel when sending the invitation,</li>
+<li>rotation of delivery queues to reduce efficiency of traffic analysis,</li>
+<li>etc.</li>
+</ul><p><a href="https://en.wikipedia.org/wiki/Defence_in_depth">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="end-to-end-encryption" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">End-to-end encryption</h1><div class="overlay-content"><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><p>End-to-end encryption requires agreeing cryptographic keys between the sender and the recipient in a way that no eavesdroppers can access the agreed keys. See <a href="#key-agreement-protocol">key agreement protocol</a>. This key exchange can be compromised via <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>, particularly if key exchange happens via the same communication provider and no out-of-band channel is used to verify key exchange.</p><p><a href="https://en.wikipedia.org/wiki/End-to-end_encryption">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-compromise-security" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-compromise security</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="man-in-the-middle-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Man-in-the-middle attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="message-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Message padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="key-agreement-protocol" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key agreement protocol</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="tooltip-end-to-end-encryption" class="glossary-tooltip"><div class="tooltip-content"><h4 class="tooltip-title">End-to-end encryption</h4><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><button class="read-more-btn open-overlay-btn" data-show-overlay="end-to-end-encryption">Read more</button></div></div><div id="key-exchange" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key exchange</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="mitm-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">MITM attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="non-repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Non-repudiation</h1><div class="overlay-content">Non-repudiation</div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="onion-routing" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Onion routing</h1><div class="overlay-content"><p>A technique for anonymous communication over a computer network that uses multiple layers of message encryption, analogous to the layers of an onion. The encrypted data is transmitted through a series of network nodes called "onion routers," each of which "peels" away a single layer, revealing the data's next destination. The sender remains anonymous because each intermediary knows only the location of the immediately preceding and following nodes.</p><p>The most widely used onion network is <a href="https://en.wikipedia.org/wiki/Tor_(network)">Tor</a>.</p><p>Some elements of SimpleX network use similar ideas in their design - different addresses for the same resource used by different parties, and additional encryption layers. Currently though, SimpleX messaging protocol does not protect sender network address, as the relay server is chosen by the recipient. The delivery relays chosen by sender that are planned for the future would make SimpleX design closer to onion routing.</p><p><a href="https://en.wikipedia.org/wiki/Onion_routing">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="overlay-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Overlay network</h1><div class="overlay-content"><p>Nodes in the overlay network can be thought of as being connected by virtual or logical links, each of which corresponds to a path, perhaps through many physical links, in the underlying network. Tor, for example, is an overlay network on top of IP network, which in its turn is also an overlay network over some underlying physical network.</p><p>SimpleX Clients also form a network using SMP relays and IP or some other overlay network (e.g., Tor), to communicate with each other. SMP relays, on another hand, do not form a network.</p><p><a href="https://en.wikipedia.org/wiki/Overlay_network">Wikipedia</a></p><h1>Non-repudiation</h1><p>The property of the cryptographic or communication system that allows the recipient of the message to prove to any third party that the sender identified by some cryptographic key sent the message. It is the opposite to <a href="#repudiation">repudiation</a>. While in some context non-repudiation may be desirable (e.g., for contractually binding messages), in the context of private communications it may be undesirable.</p><p><a href="https://en.wikipedia.org/wiki/Non-repudiation">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Repudiation</h1><div class="overlay-content"><p>The property of the cryptographic or communication system that allows the sender of the message to plausibly deny having sent the message, because while the recipient can verify that the message was sent by the sender, they cannot prove it to any third party - the recipient has a technical ability to forge the same encrypted message. This is an important quality of private communications, as it allows to have the conversation that can later be denied, similarly to having a private face-to-face conversation.</p><p>See also <a href="#non-repudiation">non-repudiation</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="pairwise-pseudonymous-identifier" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Pairwise pseudonymous identifier</h1><div class="overlay-content"><p>Generalizing <a href="https://csrc.nist.gov/glossary/term/pairwise_pseudonymous_identifier">the definition</a> from NIST Digital Identity Guidelines, it is an opaque unguessable identifier generated by a service used to access a resource by only one party.</p><p>In the context of SimpleX network, these are the identifiers generated by SMP relays to access anonymous messaging queues, with a separate identifier (and access credential) for each accessing party: recipient, sender and and optional notifications subscriber. The same approach is used by XFTP relays to access file chunks, with separate identifiers (and access credentials) for sender and each recipient.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Peer-to-peer</h1><div class="overlay-content"><p>Peer-to-peer (P2P) is the network architecture when participants have equal rights and communicate directly via a general purpose transport or overlay network. Unlike client-server architecture, all peers in a P2P network both provide and consume the resources. In the context of messaging, P2P architecture usually means that the messages are sent between peers, without user accounts or messages being stored on any servers. Examples are Tox, Briar, Cwtch and many others.</p><p>The advantage is that the participants do not depend on any servers. There are <a href="./SIMPLEX.md#comparison-with-p2p9-messaging-protocols">multiple downsides</a> to that architecture, such as no asynchronous message delivery, the need for network-wide peer addresses, possibility of network-wide attacks, that are usually mitigated only by using a centralized authority. These disadvantages are avoided with <a href="#proxied-peer-to-peer">proxied P2P</a> architecture.</p><p><a href="https://en.wikipedia.org/wiki/Peer-to-peer">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="proxied-peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Proxied peer-to-peer</h1><div class="overlay-content"><p>Network topology of the communication system when peers communicate via proxies that do not form the network themselves. Such design is used in Pond, that has a fixed home server for each user, and in SimpleX, that uses multiple relays providing temporary connections.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="perfect-forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Perfect forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-cryptography" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum cryptography</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-hybrid-crypto" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum hybrid crypto</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="recovery-from-compromise" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Recovery from compromise</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="user-identity" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">User identity</h1><div class="overlay-content"><p>In a communication system it refers to anything that uniquely identifies the users to the network. Depending on the communication network, it can be a phone number, email address, username, public key or a random opaque identifier. Most messaging networks rely on some form of user identity. SimpleX appears to be the only messaging network that does not rely on any kind of user identity - see <a href="https://en.wikipedia.org/wiki/Comparison_of_instant_messaging_protocols">this comparison</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div></body></html>
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+                            SimpleX bots API
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+                            </svg>
+                        </a>
+                    </div>
+
+                    <div class="flex gap-2 justify-center">
+                        <a href="https://github.com/simplex-chat" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 41 41" fill="none" xmlns="http://www.w3.org/2000/svg">
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+                            </svg>
+                        </a>
+                        <a href="https://twitter.com/simplexchat" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 41 41" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M20.4575 40.9268C31.5032 40.9268 40.4575 31.9725 40.4575 20.9268C40.4575 9.88106 31.5032 0.926758 20.4575 0.926758C9.41182 0.926758 0.45752 9.88106 0.45752 20.9268C0.45752 31.9725 9.41182 40.9268 20.4575 40.9268ZM29.916 16.7766C29.916 23.1157 25.014 30.4265 16.0519 30.4265V30.423C13.4038 30.4265 10.8115 29.6795 8.58252 28.2719C8.96846 28.3174 9.35558 28.3397 9.74271 28.3409C11.9372 28.3432 14.0688 27.6182 15.7942 26.283C13.7101 26.2444 11.8802 24.9055 11.2425 22.9507C11.9716 23.0898 12.7245 23.0619 13.4418 22.869C11.1689 22.4165 9.53371 20.4504 9.53252 18.1671V18.1062C10.2106 18.478 10.9694 18.6835 11.7448 18.7057C9.60377 17.2981 8.94233 14.4948 10.2355 12.3026C12.7103 15.2992 16.3606 17.1207 20.2782 17.3147C19.8851 15.6487 20.4231 13.902 21.6878 12.7306C23.6507 10.9137 26.737 11.0073 28.5824 12.9387C29.6737 12.7271 30.7199 12.3327 31.677 11.7738C31.3125 12.8857 30.5513 13.828 29.5348 14.4277C30.5002
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+                            </svg>
+                        </a>
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+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 41 41" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M20.0408 0.926758C8.9951 0.926758 0.0407715 9.88109 0.0407715 20.9268C0.0407715 31.9724 8.9951 40.9268 20.0408 40.9268C31.0864 40.9268 40.0408 31.9724 40.0408 20.9268C40.0408 9.88109 31.0864 0.926758 20.0408 0.926758ZM9.6421 17.4916H14.1745V31.1098H9.6421V17.4916ZM14.4731 13.279C14.4437 11.9438 13.4889 10.9268 11.9383 10.9268C10.3878 10.9268 9.3741 11.9438 9.3741 13.279C9.3741 14.5866 10.3579 15.6328 11.8794 15.6328H11.9084C13.4889 15.6328 14.4731 14.5866 14.4731 13.279ZM25.3017 17.1718C28.2843 17.1718 30.5203 19.1187 30.5203 23.3015L30.5201 31.1098H25.9879V23.824C25.9879 21.994 25.3319 20.7453 23.6912 20.7453C22.439 20.7453 21.6932 21.5871 21.3656 22.4003C21.2458 22.6916 21.2164 23.0976 21.2164 23.5046V31.1101H16.6834C16.6834 31.1101 16.7431 18.7698 16.6834 17.492H21.2164V19.4208C21.8179 18.4936 22.8953 17.1718 25.3017 17.1718Z" />
+                            </svg>
+                        </a>
+                        <a href="https://simplex.chat/feed.rss" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 512 512" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M256 512C397.385 512 512 397.385 512 256C512 114.615 397.385 0 256 0C114.615 0 0 114.615 0 256C0 397.385 114.615 512 256 512ZM132.791 157.572C215.586 161.137 279.503 196.841 323.612 267.517C344.138 302.436 354.186 339.959 354.57 380.122H406.814C409.639 231.301 280.977 103.1 132.791 106.05V157.572ZM309.994 343.843C311.593 356.035 313.096 367.877 314.65 380.116H261.161C260.496 344.968 248.303 314.452 223.472 289.485C198.613 264.491 168.097 252.282 132.755 251.38V199.743C198.318 196.346 288.694 244.344 309.994 343.843ZM132.766 336.706C129.293 354.261 137.796 370.323 154.848 378.004L155.461 378.242C156.267 378.558 156.912 378.81 157.577 378.985C173.012 383.066 186.298 379.318 196.604 367.168C206.463 355.544 208.397 342.145 201.87 328.354C195.205 314.271 183.419 307.215 167.834 307.356C151.188 307.509 135.971 320.504 132.766 336.706Z" />
+                            </svg>
+                        </a>
+                    </div>
+                </div>
+            </article>
+        </div>
+        <a href="#" class="text-grey-black dark:text-white text-[16px] text-center lg:ltr:text-left lg:rtl:text-right font-medium leading-[28px] tracking-[0.01em] block mt-[60px]">© 2020-2025 SimpleX Chat | Proiect Open-Source</a>
+    </div>
+</section>
+
+
+        <script src="/js/swiper-bundle.min.js"></script>
+        <script src="/js/script.js"></script>
+    </body>
+</html>
diff --git a/ro/index.html b/ro/index.html
index a1c7769675..283b675f92 100644
--- a/ro/index.html
+++ b/ro/index.html
@@ -149,6 +149,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/ro/invitation/index.html b/ro/invitation/index.html
index 0205810b39..1addb120e0 100644
--- a/ro/invitation/index.html
+++ b/ro/invitation/index.html
@@ -129,6 +129,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/ro/messaging/index.html b/ro/messaging/index.html
index 3c9d23249a..516c53389b 100644
--- a/ro/messaging/index.html
+++ b/ro/messaging/index.html
@@ -129,6 +129,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/ro/old/index.html b/ro/old/index.html
index f1e590bd5c..e9928b3d1e 100644
--- a/ro/old/index.html
+++ b/ro/old/index.html
@@ -129,6 +129,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/ro/why/index.html b/ro/why/index.html
index 6eae906291..70370034c5 100644
--- a/ro/why/index.html
+++ b/ro/why/index.html
@@ -129,6 +129,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/ru/contact/index.html b/ru/contact/index.html
index 07ab258f61..80b73f7bd1 100644
--- a/ru/contact/index.html
+++ b/ru/contact/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/ru/fdroid/index.html b/ru/fdroid/index.html
index 3f377bdbf1..441a94d96f 100644
--- a/ru/fdroid/index.html
+++ b/ru/fdroid/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/ru/file/index.html b/ru/file/index.html
new file mode 100644
index 0000000000..976ec3243f
--- /dev/null
+++ b/ru/file/index.html
@@ -0,0 +1,888 @@
+<!DOCTYPE html>
+<html lang="ru"
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+            dir="ltr"
+        
+    >
+    <head>
+        <meta charset="UTF-8">
+        <meta http-equiv="X-UA-Compatible" content="IE=edge">
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        <title>SimpleX File Transfer</title>
+        <meta name="description" content="Send files securely with end-to-end encryption"/>
+        <meta name="Content-Type" content="text/html;charset=utf-8"/>
+        
+        <meta http-equiv="onion-location" content="http://isdb4l77sjqoy2qq7ipum6x3at6hyn3jmxfx4zdhc72ufbmuq4ilwkqd.onion/" />
+        <meta property="og:url" content="https://simplex.chat/" />
+        
+        <meta property="og:type" content="website"/>
+        <meta property="og:title" content="SimpleX File Transfer"/>
+        <meta property="og:description" content="Send files securely with end-to-end encryption"/>
+        <meta property="og:image" content="https://simplex.chat/img/share_simplex.jpg"/>
+        <meta name="twitter:card" content="summary"/>
+        <link rel="icon" type="image/png" sizes="96x96" href="/img/favicon.ico"/>
+
+        <link rel="stylesheet" href="/css/swiper-bundle.min.css">
+        <link rel="stylesheet" href="/css/blog.css">
+        <link href="/css/tailwind.css" rel="stylesheet"/>
+        <link rel="stylesheet" href="/css/style.css">
+        <link rel="stylesheet" href="/css/design3-nav.css">
+        <script async defer src="https://buttons.github.io/buttons.js"></script>
+        <script src="/js/flag-anchor.js"></script>
+        
+    </head>
+    <body class="bg-[#F3FAFF] dark:bg-[#000832]">
+        
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+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+        
+    
+
+
+<header id="navbar">
+    <a href="/ru" class="logo logo-light ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-light.png" alt="logo"></a>
+    <a href="/ru" class="logo logo-dark ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-dark.png" alt="logo"></a>
+
+    <nav id="menu">
+        <ul>
+            <li class="nav-link ">
+                <a href="/ru">
+                    <span class="nav-link-text">Главная</span>
+                </a>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/directory/">
+                    <span class="nav-link-text">Каталог</span>
+                </a>
+            </li>
+
+            
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">Руководство</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    
+                        <li><a href="/docs/guide/readme.html" class="">Быстрый старт</a></li>
+                    
+                        <li><a href="/docs/guide/send-messages.html" class="">Отправка сообщений</a></li>
+                    
+                        <li><a href="/docs/guide/secret-groups.html" class="">Секретные группы</a></li>
+                    
+                        <li><a href="/docs/guide/chat-profiles.html" class="">Профили чата</a></li>
+                    
+                        <li><a href="/docs/guide/managing-data.html" class="">Управление данными</a></li>
+                    
+                        <li><a href="/docs/guide/audio-video-calls.html" class="">Аудио и видео Звонки</a></li>
+                    
+                        <li><a href="/docs/guide/privacy-security.html" class="">Конфиденциальность и безопасность</a></li>
+                    
+                        <li><a href="/docs/guide/app-settings.html" class="">Настройки приложения</a></li>
+                    
+                        <li><a href="/docs/guide/making-connections.html" class="">Установление соединений</a></li>
+                    
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">Документы</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md"
+                        target="_blank">Whitepaper
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/privacy">Политика Конфиденциальности</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/simplex-messaging.md"
+                        target="_blank">Протокол SMP
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/protocol/simplex-chat.html">Протокол чата</a></li>
+                    <li><a href="/docs/glossary.html">Глоссарий</a></li>
+
+                    <hr>
+
+                    
+                        <li><a href="/docs/simplex.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Сеть SimpleX</a></li>
+                    
+                        <li><a href="/docs/business.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX для бизнеса</a></li>
+                    
+                        <li><a href="/docs/directory.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Каталог SimpleX</a></li>
+                    
+                        <li><a href="/docs/android.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Доступ к файлам в версии для Android</a></li>
+                    
+                        <li><a href="/docs/server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Свой SMP Сервер</a></li>
+                    
+                        <li><a href="/docs/xftp-server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Свой XFTP Сервер</a></li>
+                    
+                        <li><a href="/docs/webrtc.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Сервера WebRTC</a></li>
+                    
+                        <li><a href="/downloads/" class=" lg:px-[20px] inline-block whitespace-nowrap">Скачать</a></li>
+                    
+                        <li><a href="/reproduce/" class=" lg:px-[20px] inline-block whitespace-nowrap">Verify & reproduce builds</a></li>
+                    
+                        <li><a href="/transparency/" class=" lg:px-[20px] inline-block whitespace-nowrap">Запросы данных</a></li>
+                    
+                        <li><a href="/security/" class=" lg:px-[20px] inline-block whitespace-nowrap">Безопасность</a></li>
+                    
+                        <li><a href="/faq/" class=" lg:px-[20px] inline-block whitespace-nowrap">Часто задаваемые вопросы</a></li>
+                    
+
+                    <hr>
+
+                    <li><a href="/docs/translations.html"
+                    >Перевести SimpleX Chat
+                    </a></li>
+                    <li><a href="/docs/android.html"
+                    >Доступ к файлам в версии для Android
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/blob/stable/apps/simplex-bot-advanced/Main.hs"
+                        target="_blank">Пример Чат бота
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/tree/stable/packages/simplex-chat-client/typescript"
+                        target="_blank">TypeScript SDK
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/cli.html">Приложение для терминала (CLI)</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq"
+                        target="_blank">SimpleXMQ
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/blog">
+                    <span class="nav-link-text">Блог</span>
+                </a>
+            </li>
+        </ul>
+    </nav>
+
+    <div class="right-links">
+        
+            <a class="box-btn token md:hidden" href="/donate">
+                Пожертвовать
+            </a>
+        
+        <button href="#" class="theme-switch-btn">
+            <svg class="sun" width="469" height="469" viewBox="0 0 469 469" fill="none" xmlns="http://www.w3.org/2000/svg">
+            <path d="M225.768 1.44594C220.301 3.84594 214.701 10.6459 213.768 15.9793C213.234 18.3793 213.101 31.7126 213.368 45.7126L213.768 71.1793L217.634 76.1126C226.701 88.1126 242.968 87.5793 252.301 75.0459C254.968 71.5793 255.101 69.5793 255.101 42.2459C255.101 14.9126 254.968 12.9126 252.301 9.44594C250.834 7.44594 248.034 4.51261 246.168 3.17928C241.768 -0.154057 231.101 -1.08739 225.768 1.44594Z"/>
+            <path d="M72.9687 65.3128C63.7687 71.5794 60.1687 81.4461 63.7687 91.1794C65.502 95.4461 98.702 129.446 104.035 132.379C106.035 133.446 110.569 134.246 114.035 134.246C126.035 134.246 134.435 125.846 134.435 113.846C134.435 110.379 133.635 105.846 132.569 103.846C129.635 98.5128 95.6353 65.3128 91.3687 63.5794C85.102 61.3128 77.902 61.9794 72.9687 65.3128Z"/>
+            <path d="M377.102 63.7128C373.102 65.3128 338.969 98.7794 336.302 103.846C335.236 105.846 334.436 110.379 334.436 113.846C334.436 125.846 342.836 134.246 354.836 134.246C358.302 134.246 362.836 133.446 364.836 132.379C370.169 129.446 403.369 95.4461 405.102 91.1794C408.702 81.4461 405.102 71.5794 395.902 65.3128C391.102 61.9794 383.102 61.3128 377.102 63.7128Z"/>
+            <path d="M211.635 108.246C185.635 113.179 163.502 125.046 144.302 144.112C117.902 170.512 104.968 203.579 106.835 240.246C109.768 297.712 149.102 344.912 205.902 359.179C218.568 362.379 250.302 362.379 262.968 359.179C310.435 347.312 345.768 312.646 358.702 265.046C362.435 251.446 362.835 219.446 359.368 205.712C347.368 158.112 312.302 122.379 265.235 110.112C251.768 106.512 225.502 105.579 211.635 108.246Z"/>
+            <path d="M12.4349 214.779C-0.498477 220.379 -4.09848 237.579 5.23486 248.246C11.2349 255.046 15.6349 255.846 45.3682 255.313C74.0349 254.913 75.1015 254.646 81.6349 245.713C85.9015 239.979 85.5015 228.113 80.8349 221.979C74.4349 213.713 71.2349 212.913 42.1682 212.913C23.7682 213.046 15.2349 213.579 12.4349 214.779Z"/>
+            <path d="M396.035 215.179C393.635 216.379 390.035 219.445 388.035 221.979C383.368 228.112 382.968 239.979 387.235 245.712C394.035 254.779 394.301 254.912 426.435 254.912C458.568 254.912 458.835 254.779 465.635 245.712C469.501 240.512 469.501 227.979 465.635 222.779C458.968 213.845 458.301 213.579 428.035 213.179C404.435 212.912 399.768 213.179 396.035 215.179Z"/>
+            <path d="M103.101 336.779C96.7013 340.779 65.368 373.179 63.768 377.313C57.368 394.513 74.168 411.313 91.368 404.913C95.6347 403.179 129.635 369.979 132.568 364.646C135.368 359.446 134.968 349.046 131.768 343.846C126.168 334.646 112.035 331.179 103.101 336.779Z"/>
+            <path d="M344.035 336.912C341.635 338.379 338.569 341.445 337.102 343.845C333.902 349.045 333.502 359.445 336.302 364.645C339.235 369.979 373.235 403.179 377.502 404.912C387.235 408.512 397.102 404.912 403.369 395.712C406.702 390.779 407.369 383.579 405.102 377.312C403.369 373.045 370.169 339.045 364.835 336.112C359.635 333.312 349.235 333.712 344.035 336.912Z"/>
+            <path d="M225.368 385.712C222.968 387.046 219.368 390.112 217.368 392.646L213.768 397.312V426.379C213.768 458.246 213.901 458.779 222.968 465.446C228.168 469.312 240.701 469.312 245.901 465.446C254.834 458.779 255.101 457.979 255.501 428.246C256.034 397.579 255.234 394.379 246.834 387.979C241.101 383.579 231.634 382.512 225.368 385.712Z"/>
+            </svg>
+
+            <svg class="moon" width="469" height="469" viewBox="5 5 20 23" xmlns="http://www.w3.org/2000/svg">
+                <path d="M10.895 7.574c0 7.55 5.179 13.67 11.567 13.67 1.588 0 3.101-0.38 4.479-1.063-1.695 4.46-5.996 7.636-11.051 7.636-6.533 0-11.83-5.297-11.83-11.83 0-4.82 2.888-8.959 7.023-10.803-0.116 0.778-0.188 1.573-0.188 2.39z"></path>
+            </svg>
+        </button>
+
+        
+
+        <button id="cross-btn" class="nav-toggle-btn">
+            <svg id="cross" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+            <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z" />
+        </svg>
+        </button>
+    </div>
+</header>
+<div id="mobile-header">
+    <a href="/ru" class="logo flex dark:hidden ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-light.svg" alt="" srcset=""></a>
+    <a href="/ru" class="logo hidden dark:flex ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-dark.svg" alt="" srcset=""></a>
+
+    <button id="hamburger" class="nav-toggle-btn">
+        <svg viewBox="0 0 100 80" width="36" height="36">
+            <rect width="100" height="15"></rect>
+            <rect y="30" width="100" height="15"></rect>
+            <rect y="60" width="100" height="15"></rect>
+        </svg>
+    </button>
+</div>
+
+
+<script>
+// switch theme
+const sunIcon = document.querySelector('.sun');
+const moonIcon = document.querySelector('.moon');
+
+const userTheme = localStorage.getItem('theme');
+const systemTheme = window.matchMedia('(prefers-color-scheme: dark)').matches;
+const prismThemeLink = document.getElementById('prism-theme')
+
+function iconToggle () {
+    sunIcon.classList.toggle('hidden');
+    moonIcon.classList.toggle('hidden');
+}
+
+function themeCheck() {
+    if (userTheme === 'dark' || (!userTheme && systemTheme)) {
+        document.documentElement.classList.add('dark');
+        moonIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+    }
+    else{
+        sunIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+    }
+}
+themeCheck();
+
+function themeSwitch () {
+    if (document.documentElement.classList.contains('dark')) {
+        document.documentElement.classList.remove('dark');
+        localStorage.setItem('theme', 'light');
+        if(prismThemeLink){
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+        iconToggle();
+    } else {
+        document.documentElement.classList.add('dark');
+        localStorage.setItem('theme', 'dark');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+        iconToggle();
+    }
+}
+
+const nav = document.querySelector('header#navbar');
+
+window.addEventListener('click',(e)=>{
+    if(e.target.closest('.nav-link')){
+        if(e.target.closest('.nav-link').classList.contains('active')){
+            e.target.closest('.nav-link').classList.remove('active');
+        }
+        else{
+            document.querySelectorAll('.nav-link').forEach(el => el.classList.remove('active'))
+            e.target.closest('.nav-link').classList.add('active');
+        }
+    }
+    else if(e.target.closest('.nav-toggle-btn')){
+        if(nav.classList.contains('open')){
+            nav.classList.remove('open');
+            document.getElementById('mobile-header').classList.remove('nav-open');
+            document.documentElement.classList.remove('lock-scroll');
+        }
+        else{
+            document.documentElement.classList.add('lock-scroll');
+            document.getElementById('mobile-header').classList.add('nav-open');
+            nav.classList.add('open');
+        }
+    }
+    else if(e.target.closest('.theme-switch-btn')){
+        themeSwitch();
+    }
+});
+</script>
+
+        <html><head><link rel="stylesheet" href="/file-assets/index.css">
+<style>
+  /* Reset website .card styles that conflict with xftp bundle */
+  #app .card { cursor: default; }
+  #app .card,
+  #app .card > div { transition: unset; height: auto; }
+  #app .card > div > * { opacity: unset; max-height: unset; transform: unset; transition: unset; }
+
+  /* Align xftp bundle with website design */
+  #app { font-family: inherit; color: #3F484B; max-width: 600px; width: 100%; margin: 0 auto; padding: 0; }
+  #app .card { background: transparent; box-shadow: none; padding: 0; border-radius: 0; }
+  #app .card > h1 { display: none; }
+  .dark #app h1 { color: #fff; }
+  #app .drop-zone { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; }
+  #app .drop-zone.drag-over { border-color: #0053D0; background: #DBEEFF; }
+  #app .btn { background: #0053D0; border-radius: 34px; padding: 12px 32px; font-size: .9rem; font-weight: 600; }
+  #app .btn:hover { background: #1661D1; }
+  #app .btn-secondary { background: #6b7280; border-radius: 34px; }
+  #app .hint { color: #6b7280; }
+  #app .link-row input { border-radius: 8px; border-color: #c5d3de; }
+  #app .security-note { background: #ffffff; border-radius: 12px; color: #3F484B; }
+  #app .security-note a { color: #0197FF; }
+  #app .success { color: #0053D0; }
+
+  .dark #app { color: #e5e7eb; }
+  .dark #app .card { background: transparent; box-shadow: none; }
+  .dark #app .drop-zone { border-color: #374151; }
+  .dark #app .drop-zone.drag-over { border-color: #70F0F9; background: #1B325C; }
+  .dark #app .btn { background: #70F0F9; color: #000832; }
+  .dark #app .btn:hover { background: #66D9E2; }
+  .dark #app .link-row input { border-color: #374151; background: #071C46; color: #e5e7eb; }
+  .dark #app .security-note { background: #0B2A59; color: #d1d5db; }
+  .dark #app .security-note a { color: #70F0F9; }
+  .dark #app .success { color: #70F0F9; }
+
+  #app #upload-error { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; text-align: center; }
+  .dark #app #upload-error { border-color: #374151; }
+
+  #app .stage > .btn { margin-top: 20px; }
+  #app .security-note { margin-top: 20px; }
+  #app .drop-zone .btn { margin: 10px 0 16px; }
+
+  /* Protocol overlay: image fixed, text scrolls natively */
+  /* Push popup below navbar at all widths */
+  #xftp-protocol { padding-top: 70px; }
+  #xftp-protocol .overlay-card {
+    display: flex;
+    flex-direction: column;
+    position: relative;
+    overflow: hidden;
+  }
+  @media (min-width: 768px) {
+    #xftp-protocol .overlay-card { max-height: min(660px, 100%); }
+  }
+  #xftp-protocol .overlay-card > h1 {
+    flex-shrink: 0;
+    padding-bottom: 16px;
+    margin-bottom: 0;
+    z-index: 1;
+  }
+  @media (min-width: 1024px) and (max-height: 750px) {
+    #xftp-protocol .overlay-card > h1 {
+      font-size: 22px;
+    }
+  }
+  /* .flex is the full-width scroll container */
+  #xftp-protocol .overlay-card > .flex {
+    flex: 1;
+    min-height: 0;
+    overflow-y: auto;
+    scrollbar-width: thin;
+    scrollbar-color: #c5d3de transparent;
+  }
+  .dark #xftp-protocol .overlay-card > .flex {
+    scrollbar-color: #374151 transparent;
+  }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar { width: 6px; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-track { background: transparent; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #c5d3de; border-radius: 3px; }
+  .dark #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #374151; }
+  /* Desktop: text stays left, image fixed on right */
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card > .flex > div:first-child {
+      max-width: 50%;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child {
+      position: absolute;
+      right: 56px;
+      top: 0;
+      bottom: 0;
+      left: 55%;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      pointer-events: none;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child > div {
+      height: 100%;
+      padding: 40px 0;
+      box-sizing: border-box;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child img {
+      height: 100%;
+    }
+  }
+  #xftp-protocol .close-overlay-btn {
+    position: absolute;
+    top: 24px;
+    right: 24px;
+    cursor: pointer;
+    z-index: 3;
+    fill: #606C71;
+  }
+  .dark #xftp-protocol .close-overlay-btn { fill: #e5e7eb; }
+  /* Scroll fade: gradient over text area only, hidden at bottom */
+  #xftp-protocol .overlay-card::after {
+    content: '';
+    position: absolute;
+    bottom: 40px;
+    left: 24px;
+    right: 24px;
+    height: 48px;
+    background: linear-gradient(rgba(255,255,255,0), #fff);
+    pointer-events: none;
+    z-index: 2;
+    transition: opacity 0.2s;
+  }
+  .dark #xftp-protocol .overlay-card::after {
+    background: linear-gradient(rgba(7,28,70,0), #071C46);
+  }
+  @media (min-width: 640px) {
+    #xftp-protocol .overlay-card::after { bottom: 56px; left: 56px; right: 56px; }
+  }
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card::after { right: 55%; }
+  }
+  #xftp-protocol.scrolled-bottom .overlay-card::after { opacity: 0; }
+  #xftp-protocol .overlay-card.flex,
+  #xftp-protocol.flex .overlay-card { animation: overlaySlideIn 0.25s ease-out; }
+  @keyframes overlaySlideIn {
+    from { opacity: 0; transform: scale(0.95) translateY(10px); }
+    to { opacity: 1; transform: scale(1) translateY(0); }
+  }
+  #xftp-protocol.overlay-closing { animation: overlayFadeOut 0.2s ease-in forwards; }
+  #xftp-protocol.overlay-closing .overlay-card { animation: overlaySlideOut 0.2s ease-in forwards; }
+  @keyframes overlayFadeOut {
+    from { opacity: 1; }
+    to { opacity: 0; }
+  }
+  @keyframes overlaySlideOut {
+    from { opacity: 1; transform: scale(1) translateY(0); }
+    to { opacity: 0; transform: scale(0.95) translateY(10px); }
+  }
+
+  .file-proto-link {
+    font-size: 1.25rem;
+    font-weight: 600;
+    background: linear-gradient(90deg, #001aa7 0%, #0095e7 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+    text-decoration: none;
+  }
+  .dark .file-proto-link {
+    background: linear-gradient(90deg, #019bfe 0%, #64fdff 58%, #c8feff 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+  }
+
+</style>
+
+</head><body><section class="bg-secondary-bg-light dark:bg-primary-bg-dark py-10 mt-[66px] px-5">
+  <div class="container flex flex-col items-center mx-auto">
+    <noscript>
+      <p class="text-center text-grey-black dark:text-white py-10">
+        JavaScript is required for file transfer.
+      </p>
+    </noscript>
+    <h1 class="text-[38px] text-center font-bold text-active-blue mb-8">SimpleX File Transfer</h1>
+    <div id="app" data-xftp-app="" data-no-hashchange="" class="w-full">
+      <div class="card">
+        <div class="drop-zone">
+          <p>Drag &amp; drop a file here</p>
+          <p class="hint">or</p>
+          <span class="btn">Choose file</span>
+          <p class="hint">Max 100 MB - <a href="#join-simplex">SimpleX Chat app</a> supports files up to 1 GB</p>
+        </div>
+      </div>
+    </div>
+    <template id="dl-placeholder">
+      <div class="card">
+        <h1>SimpleX File Transfer</h1>
+        <div class="stage">
+          <p>File available</p>
+          <button class="btn">Download</button>
+          <div class="security-note">
+            <p>This file is encrypted - data routers never see file contents, name or size.</p>
+            <p>The encryption key is in the link’s hash fragment - it is never sent to any server.</p>
+            <p>For better security, use <a href="https://simplex.chat/download">SimpleX Chat</a> app.</p>
+          </div>
+        </div>
+      </div>
+    </template>
+    <script>if(location.hash.length>50){var a=document.getElementById("app"),t=document.getElementById("dl-placeholder");if(a&&t)a.replaceChildren(t.content.cloneNode(true))}</script>
+    <script type="module" src="/file-assets/index.js"></script>
+
+    <p class="text-base text-center text-grey-black dark:text-white mt-10 max-w-[600px]">Send files securely with <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span> — no accounts, no tracking.</p>
+    <a href="javascript:void(0)" data-show-overlay="xftp-protocol" class="open-overlay-btn file-proto-link mt-3 block text-center">Learn more about XFTP protocol</a>
+  </div>
+</section>
+
+<section class="bg-primary-bg-light dark:bg-secondary-bg-dark py-[90px] px-5">
+  <div class="container flex flex-col items-center mx-auto text-center">
+    <h2 class="text-[35px] leading-[45px] md:text-[45px] md:leading-[55px] text-grey-black dark:text-white font-bold mb-5">
+      Get SimpleX Chat — the most secure &amp; private messenger
+    </h2>
+    <p class="text-base text-grey-black dark:text-white mb-14 max-w-[600px]">
+      The file transfer you just used uses the same data routing protocol as SimpleX Chat. The app has end-to-end encrypted messaging, voice and video calls, groups, and sending files. No account. No phone. No email. No user profile IDs.
+    </p>
+    <div class="flex items-center justify-center gap-4 flex-wrap">
+      <a href="https://apps.apple.com/us/app/simplex-chat/id1605771084" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apple_store.svg"></a>
+      <a href="https://play.google.com/store/apps/details?id=chat.simplex.app" target="_blank"><img class="h-[40px] w-auto" src="/img/new/google_play.svg"></a>
+      <a href="/ru/fdroid"><img class="h-[40px] w-auto" src="/img/new/f_droid.svg"></a>
+      <a href="https://testflight.apple.com/join/DWuT2LQu" target="_blank"><img class="h-[40px] w-auto" src="/img/new/testflight.png"></a>
+      <a href="https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-aarch64.apk" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apk_icon.png"></a>
+    </div>
+  </div>
+</section>
+
+
+  
+    
+    <div id="xftp-protocol" data-scroll-to="" class="overlay hidden fixed top-0 left-0 bottom-0 right-0 before:absolute before:w-full before:h-full bg-transparent before:bg-secondary-bg-light dark:before:bg-primary-bg-dark before:opacity-90 items-center justify-center p-3 md:p-10 z-[10000]">
+        <div class="overlay-card w-full md:w-fit md:max-w-[1276px] bg-white dark:bg-card-bg-dark opacity-100 h-full md:h-fit md:max-h-[660px] z-[10001] rounded-md shadow-[0px_3px_12px_rgba(0,0,0,0.2)] p-6 py-10 sm:p-14 overflow-auto scale-100">
+            <h1 class="text-3xl font-bold text-active-blue mb-6 ">XFTP protocol: the most secure file transfer</h1>
+            <div class="flex flex-col-reverse lg:flex-row gap-10 justify-between">
+                
+                    <div class="lg:max-w-[448px]">
+                        <div class="text-grey-black dark:text-white flex flex-col gap-6 text-base">
+                            <div>
+  <h3 class="font-bold text-lg mb-2">No account required</h3>
+  <p>Each file fragment uses a new random key. Data routers have no "users" or "files" - they transfer encrypted file fragments of fixed sizes.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Triple-encrypted in your browser</h3>
+  <p>File encryption key is present only in the URL hash fragment - your browser never sends it to a server. There are 3 encryption layers: TLS transport, per-recipient encryption (unique ephemeral key per transfer), and file <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span>.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Independent data routers</h3>
+  <p>When file is split to fragments, it is sent via network routers operated by independent parties. No operator can see the actual file size or name. Even if a router is compromised, it can only see encrypted fragments of fixed size. File fragments are cached by network routers for approximately 48 hours.</p>
+</div>
+<p class="mt-4">
+  <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/xftp.md" target="_blank" rel="noopener" class="text-active-blue hover:underline">
+    Read the XFTP protocol specification →
+  </a>
+</p>
+
+                        </div>
+                    </div>
+                
+
+                
+                    <div class="max-w-[448px]">
+                        <div class="flex items-center justify-center">
+                            <img class="w-full max-w-[448px] min-w-[300px] dark:hidden" src="/img/new/xftp-protocol.svg" alt="">
+                            <img class="w-full max-w-[448px] min-w-[300px] hidden dark:block" src="/img/new/xftp-protocol-dark.svg" alt="">
+                        </div>
+                    </div>
+                
+            </div>
+
+            <svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+                <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z"></path>
+            </svg>
+        </div>
+    </div>
+
+
+
+<script>
+  window.__XFTP_I18N__ = {
+    "title": "SimpleX File Transfer",
+    "dropZone": "Drag & drop a file here",
+    "dropZoneHint": "or",
+    "chooseFile": "Choose file",
+    "maxSizeHint": "Max 100 MB - <a href=\"#join-simplex\">SimpleX Chat app</a> supports files up to 1 GB",
+    "encrypting": "Encrypting…",
+    "uploading": "Uploading…",
+    "cancel": "Cancel",
+    "fileUploaded": "File uploaded",
+    "copy": "Copy",
+    "copied": "Copied!",
+    "share": "Share",
+    "expiryHint": "Files are typically available for 48 hours.",
+    "securityNote1": "Your file was encrypted in the browser - data routers never see file contents, name or size.",
+    "securityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "securityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "retry": "Retry",
+    "downloading": "Downloading…",
+    "decrypting": "Decrypting…",
+    "downloadComplete": "Download complete",
+    "download": "Download",
+    "fileTooLarge": "File too large (%size%). Maximum is 100 MB. The <a href=\"#join-simplex\">SimpleX app</a> supports files up to 1 GB.",
+    "fileEmpty": "File is empty.",
+    "invalidLink": "Invalid or corrupted link.",
+    "initError": "Failed to initialize: %error%",
+    "fileAvailable": "File available (~%size%)",
+    "dlSecurityNote1": "This file is encrypted - data routers never see file contents, name or size.",
+    "dlSecurityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "dlSecurityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "workersRequired": "Web Workers required — update your browser"
+  }
+</script>
+
+<script>
+  // Intercept close for #xftp-protocol to add fade-out animation
+  document.getElementById('xftp-protocol')?.addEventListener('click', function(e) {
+    if (e.target.closest('.close-overlay-btn') || (e.target.closest('.overlay') && !e.target.closest('.overlay-card'))) {
+      e.stopPropagation();
+      var el = document.getElementById('xftp-protocol');
+      el.classList.add('overlay-closing');
+      el.addEventListener('animationend', function handler() {
+        el.removeEventListener('animationend', handler);
+        el.classList.remove('flex', 'overlay-closing');
+        el.classList.add('hidden');
+        document.body.classList.remove('lock-scroll');
+        history.replaceState(null, null, ' ');
+      });
+    }
+  }, true);
+
+  // Hide scroll fade gradient when text bottom is visible (works with column-reverse)
+  var scrollArea = document.querySelector('#xftp-protocol .overlay-card > .flex');
+  if (scrollArea) {
+    var textCol = scrollArea.querySelector(':scope > div:first-child > div');
+    function checkScrollBottom() {
+      if (!textCol) return;
+      var scrollRect = scrollArea.getBoundingClientRect();
+      if (scrollRect.height === 0) return; // not laid out yet
+      var textBottom = textCol.getBoundingClientRect().bottom;
+      document.getElementById('xftp-protocol').classList.toggle('scrolled-bottom', textBottom <= scrollRect.bottom + 10);
+    }
+    scrollArea.addEventListener('scroll', checkScrollBottom);
+    new MutationObserver(function() {
+      if (!document.getElementById('xftp-protocol').classList.contains('hidden')) {
+        requestAnimationFrame(checkScrollBottom);
+      }
+    }).observe(document.getElementById('xftp-protocol'), { attributes: true, attributeFilter: ['class'] });
+  }
+</script>
+
+<div id="address-portability" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Address portability</h1><div class="overlay-content"><p>Similarly to <a href="https://en.wikipedia.org/wiki/Local_number_portability">phone number portability</a> (the ability of the customer to transfer the service to another provider without changing the number), the address portability means the ability of a communication service customer to change the service provider without changing the service address. Many <a href="#federated-network">federated networks</a> support SRV records to provide address portability, but allowing service users to set up their own domains for the addresses is not as commonly supported by the available server and client software as for email.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="federated-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Federated network</h1><div class="overlay-content"><p>Federated network is provided by several entities that agree upon the standards and operate the network collectively. This allows the users to choose their provider, that will hold their account, their messaging history and contacts, and communicate with other providers' servers on behalf of the user. The examples are email, XMPP, Matrix and Mastodon.</p><p>The advantage of that design is that there is no single organization that all users depend on, and the standards are more difficult to change, unless it benefits all users. There are several disadvantages: 1) the innovation is slower, 2) each user account still depends on a single organization, and in most cases can't move to another provider without changing their network address – there is no <a href="#address-portability">address portability</a>, 3) the security and privacy are inevitably worse than with the centralized networks.</p><p><a href="https://en.wikipedia.org/wiki/Federation_(information_technology)">Federation on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="anonymous-credentials" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Anonymous credentials</h1><div class="overlay-content"><p>The credential that allows proving something, e.g. the right to access some resource, without identifying the user. This credential can either be generated by a trusted party or by the user themselves and provided together with the request to create the resource. The first approach creates some centralized dependency in most cases. The second approach does not require any trust - this is used in SimpleX network to authorize access to the messaging queues.</p><p><a href="https://en.wikipedia.org/wiki/Digital_credential">Digital credential on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="blockchain" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Blockchain</h1><div class="overlay-content"><p>In a wide sense, blockchain means a sequence of blocks of data, where each block contains a cryptographic hash of the previous block, thus providing integrity to the whole chain. Blockchains are used in many communication and information storage systems to provide integrity and immutability of the data. For example, BluRay disks use blockchain. SimpleX messaging queues also use blockchain - each message includes the hash of the previous message, to ensure the integrity – if any message is modified it will be detected by the recipient when the next message is received. Blockchains are a subset of <a href="#merkle-directed-acyclic-graph">Merkle directed acyclic graphs</a>.</p><p>In a more narrow sense, particularly in media, blockchain is used to refer specifically to distributed ledger, where each record also includes the hash of the previous record, but the blocks have to be agreed by the participating peers using some <a href="https://en.wikipedia.org/wiki/Consensus_(computer_science)">consensus protocol</a>.</p><p><a href="https://en.wikipedia.org/wiki/Blockchain">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="merkle-directed-acyclic-graph" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Merkle directed acyclic graph</h1><div class="overlay-content"><p>Also known as Merkle DAG, a data structure based on a general graph structure where node contains the cryptographic hashes of the previous nodes that point to it. Merkle trees are a subset of Merkle DAGs - in this case each leaf contains a cryptographic hash of the parent.</p><p>This structure by design allows to verify the integrity of the whole structure by computing its hashes and comparing with the hashes included in the nodes, in the same way as with <a href="#blockchain">blockchain</a>.</p><p>The motivation to use DAG in distributed environments instead of a simpler linear blockchain is to allow concurrent additions, when there is no requirement for a single order of added items. Merkle DAG is used, for example, in <a href="https://en.wikipedia.org/wiki/InterPlanetary_File_System">IPFS</a> and will be used in decentralized SimpleX groups.</p><p><a href="https://en.wikipedia.org/wiki/Merkle_tree">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="break-in-recovery" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Break-in recovery</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="double-ratchet-algorithm" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Double ratchet algorithm</h1><div class="overlay-content"><p>It is used by two parties to exchange <a href="#end-to-end-encryption">end-to-end encrypted</a> messages. The parties will use some <a href="#key-agreement-protocol">key agreement protocol</a> to agree on the initial shared secret key.</p><p>Double Ratchet algorithm provides <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>. It is <a href="https://signal.org/docs/specifications/doubleratchet">designed by Signal</a>, and used in SimpleX Chat and many other secure messengers. Most experts consider it the state-of-the-art encryption protocol in message encryption.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="centralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Centralized network</h1><div class="overlay-content"><p>Centralized networks are provided or controlled by a single entity. The examples are Threema, Signal, WhatsApp and Telegram. The advantage of that design is that the provider can innovate faster, and has a centralized approach to security. But the disadvantage is that the provider can change or discontinue the service, and leak, sell or disclose in some other way all users' data, including who they are connected with.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="content-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Content padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="decentralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Decentralized network</h1><div class="overlay-content"><p>Decentralized network is often used to mean "the network based on decentralized blockchain". In its original meaning, decentralized network means that there is no central authority or any other point of centralization in the network, other than network protocols specification. The advantage of decentralized networks is that they are resilient to censorship and to the provider going out of business. The disadvantage is that they are often slower to innovate, and the security may be worse than with the centralized network.</p><p>The examples of decentralized networks are email, web, DNS, XMPP, Matrix, BitTorrent, etc. All these examples have a shared global application-level address space. Cryptocurrency blockchains not only have a shared address space, but also a shared state, so they are more centralized than email. Tor network also has a shared global address space, but also a central authority. SimpleX network does not have a shared application-level address space (it relies on the shared transport-level addresses - SMP relay hostnames or IP addresses), and it does not have any central authority or any shared state.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="defense-in-depth" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Defense in depth</h1><div class="overlay-content"><p>Originally, it is a military strategy that seeks to delay rather than prevent the advance of an attacker, buying time and causing additional casualties by yielding space.</p><p>In information security, defense in depth represents the use of multiple computer security techniques to help mitigate the risk of one component of the defense being compromised or circumvented. An example could be anti-virus software installed on individual workstations when there is already virus protection on the firewalls and servers within the same environment.</p><p>SimpleX network applies defense in depth approach to security by having multiple layers for the communication security and privacy:</p><ul>
+<li>double ratchet algorithm for <a href="#end-to-end-encryption">end-to-end encryption</a> with <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>,</li>
+<li>additional layer of end-to-end encryption for each messaging queue and another encryption layer of encryption from the server to the recipient inside TLS to prevent correlation by ciphertext,</li>
+<li>TLS with only strong ciphers allowed,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-server connection via server offline certificate verification,</li>
+<li>mitigation of replay attacks via signing over transport channel binding,</li>
+<li>multiple layers of <a href="#message-padding">message padding</a> to reduce efficiency of traffic analysis,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-client out-of-band channel when sending the invitation,</li>
+<li>rotation of delivery queues to reduce efficiency of traffic analysis,</li>
+<li>etc.</li>
+</ul><p><a href="https://en.wikipedia.org/wiki/Defence_in_depth">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="end-to-end-encryption" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">End-to-end encryption</h1><div class="overlay-content"><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><p>End-to-end encryption requires agreeing cryptographic keys between the sender and the recipient in a way that no eavesdroppers can access the agreed keys. See <a href="#key-agreement-protocol">key agreement protocol</a>. This key exchange can be compromised via <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>, particularly if key exchange happens via the same communication provider and no out-of-band channel is used to verify key exchange.</p><p><a href="https://en.wikipedia.org/wiki/End-to-end_encryption">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-compromise-security" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-compromise security</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="man-in-the-middle-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Man-in-the-middle attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="message-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Message padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="key-agreement-protocol" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key agreement protocol</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="tooltip-end-to-end-encryption" class="glossary-tooltip"><div class="tooltip-content"><h4 class="tooltip-title">End-to-end encryption</h4><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><button class="read-more-btn open-overlay-btn" data-show-overlay="end-to-end-encryption">Read more</button></div></div><div id="key-exchange" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key exchange</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="mitm-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">MITM attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="non-repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Non-repudiation</h1><div class="overlay-content">Non-repudiation</div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="onion-routing" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Onion routing</h1><div class="overlay-content"><p>A technique for anonymous communication over a computer network that uses multiple layers of message encryption, analogous to the layers of an onion. The encrypted data is transmitted through a series of network nodes called "onion routers," each of which "peels" away a single layer, revealing the data's next destination. The sender remains anonymous because each intermediary knows only the location of the immediately preceding and following nodes.</p><p>The most widely used onion network is <a href="https://en.wikipedia.org/wiki/Tor_(network)">Tor</a>.</p><p>Some elements of SimpleX network use similar ideas in their design - different addresses for the same resource used by different parties, and additional encryption layers. Currently though, SimpleX messaging protocol does not protect sender network address, as the relay server is chosen by the recipient. The delivery relays chosen by sender that are planned for the future would make SimpleX design closer to onion routing.</p><p><a href="https://en.wikipedia.org/wiki/Onion_routing">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="overlay-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Overlay network</h1><div class="overlay-content"><p>Nodes in the overlay network can be thought of as being connected by virtual or logical links, each of which corresponds to a path, perhaps through many physical links, in the underlying network. Tor, for example, is an overlay network on top of IP network, which in its turn is also an overlay network over some underlying physical network.</p><p>SimpleX Clients also form a network using SMP relays and IP or some other overlay network (e.g., Tor), to communicate with each other. SMP relays, on another hand, do not form a network.</p><p><a href="https://en.wikipedia.org/wiki/Overlay_network">Wikipedia</a></p><h1>Non-repudiation</h1><p>The property of the cryptographic or communication system that allows the recipient of the message to prove to any third party that the sender identified by some cryptographic key sent the message. It is the opposite to <a href="#repudiation">repudiation</a>. While in some context non-repudiation may be desirable (e.g., for contractually binding messages), in the context of private communications it may be undesirable.</p><p><a href="https://en.wikipedia.org/wiki/Non-repudiation">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Repudiation</h1><div class="overlay-content"><p>The property of the cryptographic or communication system that allows the sender of the message to plausibly deny having sent the message, because while the recipient can verify that the message was sent by the sender, they cannot prove it to any third party - the recipient has a technical ability to forge the same encrypted message. This is an important quality of private communications, as it allows to have the conversation that can later be denied, similarly to having a private face-to-face conversation.</p><p>See also <a href="#non-repudiation">non-repudiation</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="pairwise-pseudonymous-identifier" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Pairwise pseudonymous identifier</h1><div class="overlay-content"><p>Generalizing <a href="https://csrc.nist.gov/glossary/term/pairwise_pseudonymous_identifier">the definition</a> from NIST Digital Identity Guidelines, it is an opaque unguessable identifier generated by a service used to access a resource by only one party.</p><p>In the context of SimpleX network, these are the identifiers generated by SMP relays to access anonymous messaging queues, with a separate identifier (and access credential) for each accessing party: recipient, sender and and optional notifications subscriber. The same approach is used by XFTP relays to access file chunks, with separate identifiers (and access credentials) for sender and each recipient.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Peer-to-peer</h1><div class="overlay-content"><p>Peer-to-peer (P2P) is the network architecture when participants have equal rights and communicate directly via a general purpose transport or overlay network. Unlike client-server architecture, all peers in a P2P network both provide and consume the resources. In the context of messaging, P2P architecture usually means that the messages are sent between peers, without user accounts or messages being stored on any servers. Examples are Tox, Briar, Cwtch and many others.</p><p>The advantage is that the participants do not depend on any servers. There are <a href="./SIMPLEX.md#comparison-with-p2p9-messaging-protocols">multiple downsides</a> to that architecture, such as no asynchronous message delivery, the need for network-wide peer addresses, possibility of network-wide attacks, that are usually mitigated only by using a centralized authority. These disadvantages are avoided with <a href="#proxied-peer-to-peer">proxied P2P</a> architecture.</p><p><a href="https://en.wikipedia.org/wiki/Peer-to-peer">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="proxied-peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Proxied peer-to-peer</h1><div class="overlay-content"><p>Network topology of the communication system when peers communicate via proxies that do not form the network themselves. Such design is used in Pond, that has a fixed home server for each user, and in SimpleX, that uses multiple relays providing temporary connections.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="perfect-forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Perfect forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-cryptography" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum cryptography</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-hybrid-crypto" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum hybrid crypto</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="recovery-from-compromise" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Recovery from compromise</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="user-identity" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">User identity</h1><div class="overlay-content"><p>In a communication system it refers to anything that uniquely identifies the users to the network. Depending on the communication network, it can be a phone number, email address, username, public key or a random opaque identifier. Most messaging networks rely on some form of user identity. SimpleX appears to be the only messaging network that does not rely on any kind of user identity - see <a href="https://en.wikipedia.org/wiki/Comparison_of_instant_messaging_protocols">this comparison</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div></body></html>
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+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            SimpleX Whitepaper
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                        <a href="https://github.com/simplex-chat/simplex-chat/blob/stable/docs/protocol/simplex-chat.md"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            Протокол SimpleX Chat
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                        <a href="https://github.com/simplex-chat/simplex-chat/blob/stable/docs/CLI.md"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            Приложение для терминала (CLI)
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                        <a href="https://github.com/simplex-chat/simplex-chat/tree/stable/bots"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            SimpleX bots API
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                    </div>
+                </div>
+            </div>
+
+            <article class="mt-10 lg:mt-0">
+                <div class="h-[40px] flex flex-col gap-2 justify-center">
+                    <div class="flex gap-2 justify-center">
+                        <a href="https://simplex.chat/contact#/?v=1&smp=smp%3A%2F%2FPQUV2eL0t7OStZOoAsPEV2QYWt4-xilbakvGUGOItUo%3D%40smp6.simplex.im%2FK1rslx-m5bpXVIdMZg9NLUZ_8JBm8xTt%23%2F%3Fv%3D1%26dh%3DMCowBQYDK2VuAyEALDeVe-sG8mRY22LsXlPgiwTNs9dbiLrNuA7f3ZMAJ2w%253D%26srv%3Dbylepyau3ty4czmn77q4fglvperknl4bi2eb2fdy2bh4jxtf32kf73yd.onion">
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+                            </svg>
+                        </a>
+                        <a href="mailto:chat@simplex.chat" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 512 512" fill="none" xmlns="http://www.w3.org/2000/svg">
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+                            </svg>
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+                    </div>
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+                        <a href="https://github.com/simplex-chat" target="_blank">
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+                            </svg>
+                        </a>
+                        <a href="https://simplex.chat/feed.rss" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 512 512" fill="none" xmlns="http://www.w3.org/2000/svg">
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+                            </svg>
+                        </a>
+                    </div>
+                </div>
+            </article>
+        </div>
+        <a href="#" class="text-grey-black dark:text-white text-[16px] text-center lg:ltr:text-left lg:rtl:text-right font-medium leading-[28px] tracking-[0.01em] block mt-[60px]">© 2020-2025 SimpleX Chat | Проект с открытым исходным кодом</a>
+    </div>
+</section>
+
+
+        <script src="/js/swiper-bundle.min.js"></script>
+        <script src="/js/script.js"></script>
+    </body>
+</html>
diff --git a/ru/index.html b/ru/index.html
index edad557885..47fbcbfead 100644
--- a/ru/index.html
+++ b/ru/index.html
@@ -153,6 +153,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/ru/invitation/index.html b/ru/invitation/index.html
index 46c5f77512..7ff8df3584 100644
--- a/ru/invitation/index.html
+++ b/ru/invitation/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/ru/messaging/index.html b/ru/messaging/index.html
index 3b4a4c110a..42d5f5f90a 100644
--- a/ru/messaging/index.html
+++ b/ru/messaging/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/ru/old/index.html b/ru/old/index.html
index 7602c5c11b..cf8ae0cc3c 100644
--- a/ru/old/index.html
+++ b/ru/old/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/ru/why/index.html b/ru/why/index.html
index 8fac239527..b37ee9a8bc 100644
--- a/ru/why/index.html
+++ b/ru/why/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/security/index.html b/security/index.html
index f79f691583..d824947444 100644
--- a/security/index.html
+++ b/security/index.html
@@ -124,6 +124,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/tr/contact/index.html b/tr/contact/index.html
index 048a2f35d8..d97fa4a6c2 100644
--- a/tr/contact/index.html
+++ b/tr/contact/index.html
@@ -129,6 +129,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/tr/fdroid/index.html b/tr/fdroid/index.html
index b750b72b94..f66e6ebd3d 100644
--- a/tr/fdroid/index.html
+++ b/tr/fdroid/index.html
@@ -129,6 +129,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/tr/file/index.html b/tr/file/index.html
new file mode 100644
index 0000000000..2ceea2a5eb
--- /dev/null
+++ b/tr/file/index.html
@@ -0,0 +1,884 @@
+<!DOCTYPE html>
+<html lang="tr"
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    >
+    <head>
+        <meta charset="UTF-8">
+        <meta http-equiv="X-UA-Compatible" content="IE=edge">
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        <title>SimpleX File Transfer</title>
+        <meta name="description" content="Send files securely with end-to-end encryption"/>
+        <meta name="Content-Type" content="text/html;charset=utf-8"/>
+        
+        <meta http-equiv="onion-location" content="http://isdb4l77sjqoy2qq7ipum6x3at6hyn3jmxfx4zdhc72ufbmuq4ilwkqd.onion/" />
+        <meta property="og:url" content="https://simplex.chat/" />
+        
+        <meta property="og:type" content="website"/>
+        <meta property="og:title" content="SimpleX File Transfer"/>
+        <meta property="og:description" content="Send files securely with end-to-end encryption"/>
+        <meta property="og:image" content="https://simplex.chat/img/share_simplex.jpg"/>
+        <meta name="twitter:card" content="summary"/>
+        <link rel="icon" type="image/png" sizes="96x96" href="/img/favicon.ico"/>
+
+        <link rel="stylesheet" href="/css/swiper-bundle.min.css">
+        <link rel="stylesheet" href="/css/blog.css">
+        <link href="/css/tailwind.css" rel="stylesheet"/>
+        <link rel="stylesheet" href="/css/style.css">
+        <link rel="stylesheet" href="/css/design3-nav.css">
+        <script async defer src="https://buttons.github.io/buttons.js"></script>
+        <script src="/js/flag-anchor.js"></script>
+        
+    </head>
+    <body class="bg-[#F3FAFF] dark:bg-[#000832]">
+        
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+    
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+    
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+    
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+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+
+<header id="navbar">
+    <a href="/tr" class="logo logo-light ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-light.png" alt="logo"></a>
+    <a href="/tr" class="logo logo-dark ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-dark.png" alt="logo"></a>
+
+    <nav id="menu">
+        <ul>
+            <li class="nav-link ">
+                <a href="/tr">
+                    <span class="nav-link-text">Anasayfa</span>
+                </a>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/directory/">
+                    <span class="nav-link-text">Dizin</span>
+                </a>
+            </li>
+
+            
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">Kılavuz</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    
+                        <li><a href="/docs/guide/readme.html" class="">Hızlı Başlangıç</a></li>
+                    
+                        <li><a href="/docs/guide/send-messages.html" class="">Mesaj gönderme</a></li>
+                    
+                        <li><a href="/docs/guide/secret-groups.html" class="">Gizli Gruplar</a></li>
+                    
+                        <li><a href="/docs/guide/chat-profiles.html" class="">Sohbet Profilleri</a></li>
+                    
+                        <li><a href="/docs/guide/managing-data.html" class="">Veri yönetimi</a></li>
+                    
+                        <li><a href="/docs/guide/audio-video-calls.html" class="">Sesli & Görüntülü Aramalar</a></li>
+                    
+                        <li><a href="/docs/guide/privacy-security.html" class="">Gizlilik & Güvenlik</a></li>
+                    
+                        <li><a href="/docs/guide/app-settings.html" class="">Uygulama Ayarları</a></li>
+                    
+                        <li><a href="/docs/guide/making-connections.html" class="">Bağlantı kurma</a></li>
+                    
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">Referans</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md"
+                        target="_blank">Whitepaper
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/privacy">Gizlilik Politikası</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/simplex-messaging.md"
+                        target="_blank">SMP Protokolü
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/protocol/simplex-chat.html">Sohbet Protokolü</a></li>
+                    <li><a href="/docs/glossary.html">Sözlük</a></li>
+
+                    <hr>
+
+                    
+                        <li><a href="/docs/simplex.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX Ağı</a></li>
+                    
+                        <li><a href="/docs/business.html" class=" lg:px-[20px] inline-block whitespace-nowrap">İşletmeler için SimpleX</a></li>
+                    
+                        <li><a href="/docs/directory.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX dizin servisi</a></li>
+                    
+                        <li><a href="/docs/android.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Android dosyalarına erişim</a></li>
+                    
+                        <li><a href="/docs/server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SMP sunucusunu barındırma</a></li>
+                    
+                        <li><a href="/docs/xftp-server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">XFTP sunucusunu barındırma</a></li>
+                    
+                        <li><a href="/docs/webrtc.html" class=" lg:px-[20px] inline-block whitespace-nowrap">WebRTC sunucusu</a></li>
+                    
+                        <li><a href="/downloads/" class=" lg:px-[20px] inline-block whitespace-nowrap">İndirilenler</a></li>
+                    
+                        <li><a href="/reproduce/" class=" lg:px-[20px] inline-block whitespace-nowrap">Verify & reproduce builds</a></li>
+                    
+                        <li><a href="/transparency/" class=" lg:px-[20px] inline-block whitespace-nowrap">Şeffaflık</a></li>
+                    
+                        <li><a href="/security/" class=" lg:px-[20px] inline-block whitespace-nowrap">Güvenlik</a></li>
+                    
+                        <li><a href="/faq/" class=" lg:px-[20px] inline-block whitespace-nowrap">SSS</a></li>
+                    
+
+                    <hr>
+
+                    <li><a href="/docs/translations.html"
+                    >SimpleX Chat'i çevir
+                    </a></li>
+                    <li><a href="/docs/android.html"
+                    >Android dosyalarına erişim
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/blob/stable/apps/simplex-bot-advanced/Main.hs"
+                        target="_blank">Sohbet Botu Örneği
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/tree/stable/packages/simplex-chat-client/typescript"
+                        target="_blank">TypeScript SDK
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/cli.html">Terminal Komut Satırı Arayüzü</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq"
+                        target="_blank">SimpleXMQ
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/blog">
+                    <span class="nav-link-text">Blog</span>
+                </a>
+            </li>
+        </ul>
+    </nav>
+
+    <div class="right-links">
+        
+            <a class="box-btn token md:hidden" href="/donate">
+                Bağış Yap
+            </a>
+        
+        <button href="#" class="theme-switch-btn">
+            <svg class="sun" width="469" height="469" viewBox="0 0 469 469" fill="none" xmlns="http://www.w3.org/2000/svg">
+            <path d="M225.768 1.44594C220.301 3.84594 214.701 10.6459 213.768 15.9793C213.234 18.3793 213.101 31.7126 213.368 45.7126L213.768 71.1793L217.634 76.1126C226.701 88.1126 242.968 87.5793 252.301 75.0459C254.968 71.5793 255.101 69.5793 255.101 42.2459C255.101 14.9126 254.968 12.9126 252.301 9.44594C250.834 7.44594 248.034 4.51261 246.168 3.17928C241.768 -0.154057 231.101 -1.08739 225.768 1.44594Z"/>
+            <path d="M72.9687 65.3128C63.7687 71.5794 60.1687 81.4461 63.7687 91.1794C65.502 95.4461 98.702 129.446 104.035 132.379C106.035 133.446 110.569 134.246 114.035 134.246C126.035 134.246 134.435 125.846 134.435 113.846C134.435 110.379 133.635 105.846 132.569 103.846C129.635 98.5128 95.6353 65.3128 91.3687 63.5794C85.102 61.3128 77.902 61.9794 72.9687 65.3128Z"/>
+            <path d="M377.102 63.7128C373.102 65.3128 338.969 98.7794 336.302 103.846C335.236 105.846 334.436 110.379 334.436 113.846C334.436 125.846 342.836 134.246 354.836 134.246C358.302 134.246 362.836 133.446 364.836 132.379C370.169 129.446 403.369 95.4461 405.102 91.1794C408.702 81.4461 405.102 71.5794 395.902 65.3128C391.102 61.9794 383.102 61.3128 377.102 63.7128Z"/>
+            <path d="M211.635 108.246C185.635 113.179 163.502 125.046 144.302 144.112C117.902 170.512 104.968 203.579 106.835 240.246C109.768 297.712 149.102 344.912 205.902 359.179C218.568 362.379 250.302 362.379 262.968 359.179C310.435 347.312 345.768 312.646 358.702 265.046C362.435 251.446 362.835 219.446 359.368 205.712C347.368 158.112 312.302 122.379 265.235 110.112C251.768 106.512 225.502 105.579 211.635 108.246Z"/>
+            <path d="M12.4349 214.779C-0.498477 220.379 -4.09848 237.579 5.23486 248.246C11.2349 255.046 15.6349 255.846 45.3682 255.313C74.0349 254.913 75.1015 254.646 81.6349 245.713C85.9015 239.979 85.5015 228.113 80.8349 221.979C74.4349 213.713 71.2349 212.913 42.1682 212.913C23.7682 213.046 15.2349 213.579 12.4349 214.779Z"/>
+            <path d="M396.035 215.179C393.635 216.379 390.035 219.445 388.035 221.979C383.368 228.112 382.968 239.979 387.235 245.712C394.035 254.779 394.301 254.912 426.435 254.912C458.568 254.912 458.835 254.779 465.635 245.712C469.501 240.512 469.501 227.979 465.635 222.779C458.968 213.845 458.301 213.579 428.035 213.179C404.435 212.912 399.768 213.179 396.035 215.179Z"/>
+            <path d="M103.101 336.779C96.7013 340.779 65.368 373.179 63.768 377.313C57.368 394.513 74.168 411.313 91.368 404.913C95.6347 403.179 129.635 369.979 132.568 364.646C135.368 359.446 134.968 349.046 131.768 343.846C126.168 334.646 112.035 331.179 103.101 336.779Z"/>
+            <path d="M344.035 336.912C341.635 338.379 338.569 341.445 337.102 343.845C333.902 349.045 333.502 359.445 336.302 364.645C339.235 369.979 373.235 403.179 377.502 404.912C387.235 408.512 397.102 404.912 403.369 395.712C406.702 390.779 407.369 383.579 405.102 377.312C403.369 373.045 370.169 339.045 364.835 336.112C359.635 333.312 349.235 333.712 344.035 336.912Z"/>
+            <path d="M225.368 385.712C222.968 387.046 219.368 390.112 217.368 392.646L213.768 397.312V426.379C213.768 458.246 213.901 458.779 222.968 465.446C228.168 469.312 240.701 469.312 245.901 465.446C254.834 458.779 255.101 457.979 255.501 428.246C256.034 397.579 255.234 394.379 246.834 387.979C241.101 383.579 231.634 382.512 225.368 385.712Z"/>
+            </svg>
+
+            <svg class="moon" width="469" height="469" viewBox="5 5 20 23" xmlns="http://www.w3.org/2000/svg">
+                <path d="M10.895 7.574c0 7.55 5.179 13.67 11.567 13.67 1.588 0 3.101-0.38 4.479-1.063-1.695 4.46-5.996 7.636-11.051 7.636-6.533 0-11.83-5.297-11.83-11.83 0-4.82 2.888-8.959 7.023-10.803-0.116 0.778-0.188 1.573-0.188 2.39z"></path>
+            </svg>
+        </button>
+
+        
+
+        <button id="cross-btn" class="nav-toggle-btn">
+            <svg id="cross" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+            <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z" />
+        </svg>
+        </button>
+    </div>
+</header>
+<div id="mobile-header">
+    <a href="/tr" class="logo flex dark:hidden ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-light.svg" alt="" srcset=""></a>
+    <a href="/tr" class="logo hidden dark:flex ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-dark.svg" alt="" srcset=""></a>
+
+    <button id="hamburger" class="nav-toggle-btn">
+        <svg viewBox="0 0 100 80" width="36" height="36">
+            <rect width="100" height="15"></rect>
+            <rect y="30" width="100" height="15"></rect>
+            <rect y="60" width="100" height="15"></rect>
+        </svg>
+    </button>
+</div>
+
+
+<script>
+// switch theme
+const sunIcon = document.querySelector('.sun');
+const moonIcon = document.querySelector('.moon');
+
+const userTheme = localStorage.getItem('theme');
+const systemTheme = window.matchMedia('(prefers-color-scheme: dark)').matches;
+const prismThemeLink = document.getElementById('prism-theme')
+
+function iconToggle () {
+    sunIcon.classList.toggle('hidden');
+    moonIcon.classList.toggle('hidden');
+}
+
+function themeCheck() {
+    if (userTheme === 'dark' || (!userTheme && systemTheme)) {
+        document.documentElement.classList.add('dark');
+        moonIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+    }
+    else{
+        sunIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+    }
+}
+themeCheck();
+
+function themeSwitch () {
+    if (document.documentElement.classList.contains('dark')) {
+        document.documentElement.classList.remove('dark');
+        localStorage.setItem('theme', 'light');
+        if(prismThemeLink){
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+        iconToggle();
+    } else {
+        document.documentElement.classList.add('dark');
+        localStorage.setItem('theme', 'dark');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+        iconToggle();
+    }
+}
+
+const nav = document.querySelector('header#navbar');
+
+window.addEventListener('click',(e)=>{
+    if(e.target.closest('.nav-link')){
+        if(e.target.closest('.nav-link').classList.contains('active')){
+            e.target.closest('.nav-link').classList.remove('active');
+        }
+        else{
+            document.querySelectorAll('.nav-link').forEach(el => el.classList.remove('active'))
+            e.target.closest('.nav-link').classList.add('active');
+        }
+    }
+    else if(e.target.closest('.nav-toggle-btn')){
+        if(nav.classList.contains('open')){
+            nav.classList.remove('open');
+            document.getElementById('mobile-header').classList.remove('nav-open');
+            document.documentElement.classList.remove('lock-scroll');
+        }
+        else{
+            document.documentElement.classList.add('lock-scroll');
+            document.getElementById('mobile-header').classList.add('nav-open');
+            nav.classList.add('open');
+        }
+    }
+    else if(e.target.closest('.theme-switch-btn')){
+        themeSwitch();
+    }
+});
+</script>
+
+        <html><head><link rel="stylesheet" href="/file-assets/index.css">
+<style>
+  /* Reset website .card styles that conflict with xftp bundle */
+  #app .card { cursor: default; }
+  #app .card,
+  #app .card > div { transition: unset; height: auto; }
+  #app .card > div > * { opacity: unset; max-height: unset; transform: unset; transition: unset; }
+
+  /* Align xftp bundle with website design */
+  #app { font-family: inherit; color: #3F484B; max-width: 600px; width: 100%; margin: 0 auto; padding: 0; }
+  #app .card { background: transparent; box-shadow: none; padding: 0; border-radius: 0; }
+  #app .card > h1 { display: none; }
+  .dark #app h1 { color: #fff; }
+  #app .drop-zone { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; }
+  #app .drop-zone.drag-over { border-color: #0053D0; background: #DBEEFF; }
+  #app .btn { background: #0053D0; border-radius: 34px; padding: 12px 32px; font-size: .9rem; font-weight: 600; }
+  #app .btn:hover { background: #1661D1; }
+  #app .btn-secondary { background: #6b7280; border-radius: 34px; }
+  #app .hint { color: #6b7280; }
+  #app .link-row input { border-radius: 8px; border-color: #c5d3de; }
+  #app .security-note { background: #ffffff; border-radius: 12px; color: #3F484B; }
+  #app .security-note a { color: #0197FF; }
+  #app .success { color: #0053D0; }
+
+  .dark #app { color: #e5e7eb; }
+  .dark #app .card { background: transparent; box-shadow: none; }
+  .dark #app .drop-zone { border-color: #374151; }
+  .dark #app .drop-zone.drag-over { border-color: #70F0F9; background: #1B325C; }
+  .dark #app .btn { background: #70F0F9; color: #000832; }
+  .dark #app .btn:hover { background: #66D9E2; }
+  .dark #app .link-row input { border-color: #374151; background: #071C46; color: #e5e7eb; }
+  .dark #app .security-note { background: #0B2A59; color: #d1d5db; }
+  .dark #app .security-note a { color: #70F0F9; }
+  .dark #app .success { color: #70F0F9; }
+
+  #app #upload-error { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; text-align: center; }
+  .dark #app #upload-error { border-color: #374151; }
+
+  #app .stage > .btn { margin-top: 20px; }
+  #app .security-note { margin-top: 20px; }
+  #app .drop-zone .btn { margin: 10px 0 16px; }
+
+  /* Protocol overlay: image fixed, text scrolls natively */
+  /* Push popup below navbar at all widths */
+  #xftp-protocol { padding-top: 70px; }
+  #xftp-protocol .overlay-card {
+    display: flex;
+    flex-direction: column;
+    position: relative;
+    overflow: hidden;
+  }
+  @media (min-width: 768px) {
+    #xftp-protocol .overlay-card { max-height: min(660px, 100%); }
+  }
+  #xftp-protocol .overlay-card > h1 {
+    flex-shrink: 0;
+    padding-bottom: 16px;
+    margin-bottom: 0;
+    z-index: 1;
+  }
+  @media (min-width: 1024px) and (max-height: 750px) {
+    #xftp-protocol .overlay-card > h1 {
+      font-size: 22px;
+    }
+  }
+  /* .flex is the full-width scroll container */
+  #xftp-protocol .overlay-card > .flex {
+    flex: 1;
+    min-height: 0;
+    overflow-y: auto;
+    scrollbar-width: thin;
+    scrollbar-color: #c5d3de transparent;
+  }
+  .dark #xftp-protocol .overlay-card > .flex {
+    scrollbar-color: #374151 transparent;
+  }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar { width: 6px; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-track { background: transparent; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #c5d3de; border-radius: 3px; }
+  .dark #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #374151; }
+  /* Desktop: text stays left, image fixed on right */
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card > .flex > div:first-child {
+      max-width: 50%;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child {
+      position: absolute;
+      right: 56px;
+      top: 0;
+      bottom: 0;
+      left: 55%;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      pointer-events: none;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child > div {
+      height: 100%;
+      padding: 40px 0;
+      box-sizing: border-box;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child img {
+      height: 100%;
+    }
+  }
+  #xftp-protocol .close-overlay-btn {
+    position: absolute;
+    top: 24px;
+    right: 24px;
+    cursor: pointer;
+    z-index: 3;
+    fill: #606C71;
+  }
+  .dark #xftp-protocol .close-overlay-btn { fill: #e5e7eb; }
+  /* Scroll fade: gradient over text area only, hidden at bottom */
+  #xftp-protocol .overlay-card::after {
+    content: '';
+    position: absolute;
+    bottom: 40px;
+    left: 24px;
+    right: 24px;
+    height: 48px;
+    background: linear-gradient(rgba(255,255,255,0), #fff);
+    pointer-events: none;
+    z-index: 2;
+    transition: opacity 0.2s;
+  }
+  .dark #xftp-protocol .overlay-card::after {
+    background: linear-gradient(rgba(7,28,70,0), #071C46);
+  }
+  @media (min-width: 640px) {
+    #xftp-protocol .overlay-card::after { bottom: 56px; left: 56px; right: 56px; }
+  }
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card::after { right: 55%; }
+  }
+  #xftp-protocol.scrolled-bottom .overlay-card::after { opacity: 0; }
+  #xftp-protocol .overlay-card.flex,
+  #xftp-protocol.flex .overlay-card { animation: overlaySlideIn 0.25s ease-out; }
+  @keyframes overlaySlideIn {
+    from { opacity: 0; transform: scale(0.95) translateY(10px); }
+    to { opacity: 1; transform: scale(1) translateY(0); }
+  }
+  #xftp-protocol.overlay-closing { animation: overlayFadeOut 0.2s ease-in forwards; }
+  #xftp-protocol.overlay-closing .overlay-card { animation: overlaySlideOut 0.2s ease-in forwards; }
+  @keyframes overlayFadeOut {
+    from { opacity: 1; }
+    to { opacity: 0; }
+  }
+  @keyframes overlaySlideOut {
+    from { opacity: 1; transform: scale(1) translateY(0); }
+    to { opacity: 0; transform: scale(0.95) translateY(10px); }
+  }
+
+  .file-proto-link {
+    font-size: 1.25rem;
+    font-weight: 600;
+    background: linear-gradient(90deg, #001aa7 0%, #0095e7 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+    text-decoration: none;
+  }
+  .dark .file-proto-link {
+    background: linear-gradient(90deg, #019bfe 0%, #64fdff 58%, #c8feff 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+  }
+
+</style>
+
+</head><body><section class="bg-secondary-bg-light dark:bg-primary-bg-dark py-10 mt-[66px] px-5">
+  <div class="container flex flex-col items-center mx-auto">
+    <noscript>
+      <p class="text-center text-grey-black dark:text-white py-10">
+        JavaScript is required for file transfer.
+      </p>
+    </noscript>
+    <h1 class="text-[38px] text-center font-bold text-active-blue mb-8">SimpleX File Transfer</h1>
+    <div id="app" data-xftp-app="" data-no-hashchange="" class="w-full">
+      <div class="card">
+        <div class="drop-zone">
+          <p>Drag &amp; drop a file here</p>
+          <p class="hint">or</p>
+          <span class="btn">Choose file</span>
+          <p class="hint">Max 100 MB - <a href="#join-simplex">SimpleX Chat app</a> supports files up to 1 GB</p>
+        </div>
+      </div>
+    </div>
+    <template id="dl-placeholder">
+      <div class="card">
+        <h1>SimpleX File Transfer</h1>
+        <div class="stage">
+          <p>File available</p>
+          <button class="btn">Download</button>
+          <div class="security-note">
+            <p>This file is encrypted - data routers never see file contents, name or size.</p>
+            <p>The encryption key is in the link’s hash fragment - it is never sent to any server.</p>
+            <p>For better security, use <a href="https://simplex.chat/download">SimpleX Chat</a> app.</p>
+          </div>
+        </div>
+      </div>
+    </template>
+    <script>if(location.hash.length>50){var a=document.getElementById("app"),t=document.getElementById("dl-placeholder");if(a&&t)a.replaceChildren(t.content.cloneNode(true))}</script>
+    <script type="module" src="/file-assets/index.js"></script>
+
+    <p class="text-base text-center text-grey-black dark:text-white mt-10 max-w-[600px]">Send files securely with <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span> — no accounts, no tracking.</p>
+    <a href="javascript:void(0)" data-show-overlay="xftp-protocol" class="open-overlay-btn file-proto-link mt-3 block text-center">Learn more about XFTP protocol</a>
+  </div>
+</section>
+
+<section class="bg-primary-bg-light dark:bg-secondary-bg-dark py-[90px] px-5">
+  <div class="container flex flex-col items-center mx-auto text-center">
+    <h2 class="text-[35px] leading-[45px] md:text-[45px] md:leading-[55px] text-grey-black dark:text-white font-bold mb-5">
+      Get SimpleX Chat — the most secure &amp; private messenger
+    </h2>
+    <p class="text-base text-grey-black dark:text-white mb-14 max-w-[600px]">
+      The file transfer you just used uses the same data routing protocol as SimpleX Chat. The app has end-to-end encrypted messaging, voice and video calls, groups, and sending files. No account. No phone. No email. No user profile IDs.
+    </p>
+    <div class="flex items-center justify-center gap-4 flex-wrap">
+      <a href="https://apps.apple.com/us/app/simplex-chat/id1605771084" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apple_store.svg"></a>
+      <a href="https://play.google.com/store/apps/details?id=chat.simplex.app" target="_blank"><img class="h-[40px] w-auto" src="/img/new/google_play.svg"></a>
+      <a href="/tr/fdroid"><img class="h-[40px] w-auto" src="/img/new/f_droid.svg"></a>
+      <a href="https://testflight.apple.com/join/DWuT2LQu" target="_blank"><img class="h-[40px] w-auto" src="/img/new/testflight.png"></a>
+      <a href="https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-aarch64.apk" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apk_icon.png"></a>
+    </div>
+  </div>
+</section>
+
+
+  
+    
+    <div id="xftp-protocol" data-scroll-to="" class="overlay hidden fixed top-0 left-0 bottom-0 right-0 before:absolute before:w-full before:h-full bg-transparent before:bg-secondary-bg-light dark:before:bg-primary-bg-dark before:opacity-90 items-center justify-center p-3 md:p-10 z-[10000]">
+        <div class="overlay-card w-full md:w-fit md:max-w-[1276px] bg-white dark:bg-card-bg-dark opacity-100 h-full md:h-fit md:max-h-[660px] z-[10001] rounded-md shadow-[0px_3px_12px_rgba(0,0,0,0.2)] p-6 py-10 sm:p-14 overflow-auto scale-100">
+            <h1 class="text-3xl font-bold text-active-blue mb-6 ">XFTP protocol: the most secure file transfer</h1>
+            <div class="flex flex-col-reverse lg:flex-row gap-10 justify-between">
+                
+                    <div class="lg:max-w-[448px]">
+                        <div class="text-grey-black dark:text-white flex flex-col gap-6 text-base">
+                            <div>
+  <h3 class="font-bold text-lg mb-2">No account required</h3>
+  <p>Each file fragment uses a new random key. Data routers have no "users" or "files" - they transfer encrypted file fragments of fixed sizes.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Triple-encrypted in your browser</h3>
+  <p>File encryption key is present only in the URL hash fragment - your browser never sends it to a server. There are 3 encryption layers: TLS transport, per-recipient encryption (unique ephemeral key per transfer), and file <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span>.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Independent data routers</h3>
+  <p>When file is split to fragments, it is sent via network routers operated by independent parties. No operator can see the actual file size or name. Even if a router is compromised, it can only see encrypted fragments of fixed size. File fragments are cached by network routers for approximately 48 hours.</p>
+</div>
+<p class="mt-4">
+  <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/xftp.md" target="_blank" rel="noopener" class="text-active-blue hover:underline">
+    Read the XFTP protocol specification →
+  </a>
+</p>
+
+                        </div>
+                    </div>
+                
+
+                
+                    <div class="max-w-[448px]">
+                        <div class="flex items-center justify-center">
+                            <img class="w-full max-w-[448px] min-w-[300px] dark:hidden" src="/img/new/xftp-protocol.svg" alt="">
+                            <img class="w-full max-w-[448px] min-w-[300px] hidden dark:block" src="/img/new/xftp-protocol-dark.svg" alt="">
+                        </div>
+                    </div>
+                
+            </div>
+
+            <svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+                <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z"></path>
+            </svg>
+        </div>
+    </div>
+
+
+
+<script>
+  window.__XFTP_I18N__ = {
+    "title": "SimpleX File Transfer",
+    "dropZone": "Drag & drop a file here",
+    "dropZoneHint": "or",
+    "chooseFile": "Choose file",
+    "maxSizeHint": "Max 100 MB - <a href=\"#join-simplex\">SimpleX Chat app</a> supports files up to 1 GB",
+    "encrypting": "Encrypting…",
+    "uploading": "Uploading…",
+    "cancel": "Cancel",
+    "fileUploaded": "File uploaded",
+    "copy": "Copy",
+    "copied": "Copied!",
+    "share": "Share",
+    "expiryHint": "Files are typically available for 48 hours.",
+    "securityNote1": "Your file was encrypted in the browser - data routers never see file contents, name or size.",
+    "securityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "securityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "retry": "Retry",
+    "downloading": "Downloading…",
+    "decrypting": "Decrypting…",
+    "downloadComplete": "Download complete",
+    "download": "Download",
+    "fileTooLarge": "File too large (%size%). Maximum is 100 MB. The <a href=\"#join-simplex\">SimpleX app</a> supports files up to 1 GB.",
+    "fileEmpty": "File is empty.",
+    "invalidLink": "Invalid or corrupted link.",
+    "initError": "Failed to initialize: %error%",
+    "fileAvailable": "File available (~%size%)",
+    "dlSecurityNote1": "This file is encrypted - data routers never see file contents, name or size.",
+    "dlSecurityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "dlSecurityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "workersRequired": "Web Workers required — update your browser"
+  }
+</script>
+
+<script>
+  // Intercept close for #xftp-protocol to add fade-out animation
+  document.getElementById('xftp-protocol')?.addEventListener('click', function(e) {
+    if (e.target.closest('.close-overlay-btn') || (e.target.closest('.overlay') && !e.target.closest('.overlay-card'))) {
+      e.stopPropagation();
+      var el = document.getElementById('xftp-protocol');
+      el.classList.add('overlay-closing');
+      el.addEventListener('animationend', function handler() {
+        el.removeEventListener('animationend', handler);
+        el.classList.remove('flex', 'overlay-closing');
+        el.classList.add('hidden');
+        document.body.classList.remove('lock-scroll');
+        history.replaceState(null, null, ' ');
+      });
+    }
+  }, true);
+
+  // Hide scroll fade gradient when text bottom is visible (works with column-reverse)
+  var scrollArea = document.querySelector('#xftp-protocol .overlay-card > .flex');
+  if (scrollArea) {
+    var textCol = scrollArea.querySelector(':scope > div:first-child > div');
+    function checkScrollBottom() {
+      if (!textCol) return;
+      var scrollRect = scrollArea.getBoundingClientRect();
+      if (scrollRect.height === 0) return; // not laid out yet
+      var textBottom = textCol.getBoundingClientRect().bottom;
+      document.getElementById('xftp-protocol').classList.toggle('scrolled-bottom', textBottom <= scrollRect.bottom + 10);
+    }
+    scrollArea.addEventListener('scroll', checkScrollBottom);
+    new MutationObserver(function() {
+      if (!document.getElementById('xftp-protocol').classList.contains('hidden')) {
+        requestAnimationFrame(checkScrollBottom);
+      }
+    }).observe(document.getElementById('xftp-protocol'), { attributes: true, attributeFilter: ['class'] });
+  }
+</script>
+
+<div id="address-portability" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Address portability</h1><div class="overlay-content"><p>Similarly to <a href="https://en.wikipedia.org/wiki/Local_number_portability">phone number portability</a> (the ability of the customer to transfer the service to another provider without changing the number), the address portability means the ability of a communication service customer to change the service provider without changing the service address. Many <a href="#federated-network">federated networks</a> support SRV records to provide address portability, but allowing service users to set up their own domains for the addresses is not as commonly supported by the available server and client software as for email.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="federated-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Federated network</h1><div class="overlay-content"><p>Federated network is provided by several entities that agree upon the standards and operate the network collectively. This allows the users to choose their provider, that will hold their account, their messaging history and contacts, and communicate with other providers' servers on behalf of the user. The examples are email, XMPP, Matrix and Mastodon.</p><p>The advantage of that design is that there is no single organization that all users depend on, and the standards are more difficult to change, unless it benefits all users. There are several disadvantages: 1) the innovation is slower, 2) each user account still depends on a single organization, and in most cases can't move to another provider without changing their network address – there is no <a href="#address-portability">address portability</a>, 3) the security and privacy are inevitably worse than with the centralized networks.</p><p><a href="https://en.wikipedia.org/wiki/Federation_(information_technology)">Federation on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="anonymous-credentials" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Anonymous credentials</h1><div class="overlay-content"><p>The credential that allows proving something, e.g. the right to access some resource, without identifying the user. This credential can either be generated by a trusted party or by the user themselves and provided together with the request to create the resource. The first approach creates some centralized dependency in most cases. The second approach does not require any trust - this is used in SimpleX network to authorize access to the messaging queues.</p><p><a href="https://en.wikipedia.org/wiki/Digital_credential">Digital credential on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="blockchain" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Blockchain</h1><div class="overlay-content"><p>In a wide sense, blockchain means a sequence of blocks of data, where each block contains a cryptographic hash of the previous block, thus providing integrity to the whole chain. Blockchains are used in many communication and information storage systems to provide integrity and immutability of the data. For example, BluRay disks use blockchain. SimpleX messaging queues also use blockchain - each message includes the hash of the previous message, to ensure the integrity – if any message is modified it will be detected by the recipient when the next message is received. Blockchains are a subset of <a href="#merkle-directed-acyclic-graph">Merkle directed acyclic graphs</a>.</p><p>In a more narrow sense, particularly in media, blockchain is used to refer specifically to distributed ledger, where each record also includes the hash of the previous record, but the blocks have to be agreed by the participating peers using some <a href="https://en.wikipedia.org/wiki/Consensus_(computer_science)">consensus protocol</a>.</p><p><a href="https://en.wikipedia.org/wiki/Blockchain">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="merkle-directed-acyclic-graph" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Merkle directed acyclic graph</h1><div class="overlay-content"><p>Also known as Merkle DAG, a data structure based on a general graph structure where node contains the cryptographic hashes of the previous nodes that point to it. Merkle trees are a subset of Merkle DAGs - in this case each leaf contains a cryptographic hash of the parent.</p><p>This structure by design allows to verify the integrity of the whole structure by computing its hashes and comparing with the hashes included in the nodes, in the same way as with <a href="#blockchain">blockchain</a>.</p><p>The motivation to use DAG in distributed environments instead of a simpler linear blockchain is to allow concurrent additions, when there is no requirement for a single order of added items. Merkle DAG is used, for example, in <a href="https://en.wikipedia.org/wiki/InterPlanetary_File_System">IPFS</a> and will be used in decentralized SimpleX groups.</p><p><a href="https://en.wikipedia.org/wiki/Merkle_tree">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="break-in-recovery" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Break-in recovery</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="double-ratchet-algorithm" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Double ratchet algorithm</h1><div class="overlay-content"><p>It is used by two parties to exchange <a href="#end-to-end-encryption">end-to-end encrypted</a> messages. The parties will use some <a href="#key-agreement-protocol">key agreement protocol</a> to agree on the initial shared secret key.</p><p>Double Ratchet algorithm provides <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>. It is <a href="https://signal.org/docs/specifications/doubleratchet">designed by Signal</a>, and used in SimpleX Chat and many other secure messengers. Most experts consider it the state-of-the-art encryption protocol in message encryption.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="centralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Centralized network</h1><div class="overlay-content"><p>Centralized networks are provided or controlled by a single entity. The examples are Threema, Signal, WhatsApp and Telegram. The advantage of that design is that the provider can innovate faster, and has a centralized approach to security. But the disadvantage is that the provider can change or discontinue the service, and leak, sell or disclose in some other way all users' data, including who they are connected with.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="content-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Content padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="decentralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Decentralized network</h1><div class="overlay-content"><p>Decentralized network is often used to mean "the network based on decentralized blockchain". In its original meaning, decentralized network means that there is no central authority or any other point of centralization in the network, other than network protocols specification. The advantage of decentralized networks is that they are resilient to censorship and to the provider going out of business. The disadvantage is that they are often slower to innovate, and the security may be worse than with the centralized network.</p><p>The examples of decentralized networks are email, web, DNS, XMPP, Matrix, BitTorrent, etc. All these examples have a shared global application-level address space. Cryptocurrency blockchains not only have a shared address space, but also a shared state, so they are more centralized than email. Tor network also has a shared global address space, but also a central authority. SimpleX network does not have a shared application-level address space (it relies on the shared transport-level addresses - SMP relay hostnames or IP addresses), and it does not have any central authority or any shared state.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="defense-in-depth" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Defense in depth</h1><div class="overlay-content"><p>Originally, it is a military strategy that seeks to delay rather than prevent the advance of an attacker, buying time and causing additional casualties by yielding space.</p><p>In information security, defense in depth represents the use of multiple computer security techniques to help mitigate the risk of one component of the defense being compromised or circumvented. An example could be anti-virus software installed on individual workstations when there is already virus protection on the firewalls and servers within the same environment.</p><p>SimpleX network applies defense in depth approach to security by having multiple layers for the communication security and privacy:</p><ul>
+<li>double ratchet algorithm for <a href="#end-to-end-encryption">end-to-end encryption</a> with <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>,</li>
+<li>additional layer of end-to-end encryption for each messaging queue and another encryption layer of encryption from the server to the recipient inside TLS to prevent correlation by ciphertext,</li>
+<li>TLS with only strong ciphers allowed,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-server connection via server offline certificate verification,</li>
+<li>mitigation of replay attacks via signing over transport channel binding,</li>
+<li>multiple layers of <a href="#message-padding">message padding</a> to reduce efficiency of traffic analysis,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-client out-of-band channel when sending the invitation,</li>
+<li>rotation of delivery queues to reduce efficiency of traffic analysis,</li>
+<li>etc.</li>
+</ul><p><a href="https://en.wikipedia.org/wiki/Defence_in_depth">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="end-to-end-encryption" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">End-to-end encryption</h1><div class="overlay-content"><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><p>End-to-end encryption requires agreeing cryptographic keys between the sender and the recipient in a way that no eavesdroppers can access the agreed keys. See <a href="#key-agreement-protocol">key agreement protocol</a>. This key exchange can be compromised via <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>, particularly if key exchange happens via the same communication provider and no out-of-band channel is used to verify key exchange.</p><p><a href="https://en.wikipedia.org/wiki/End-to-end_encryption">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-compromise-security" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-compromise security</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="man-in-the-middle-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Man-in-the-middle attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="message-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Message padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="key-agreement-protocol" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key agreement protocol</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="tooltip-end-to-end-encryption" class="glossary-tooltip"><div class="tooltip-content"><h4 class="tooltip-title">End-to-end encryption</h4><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><button class="read-more-btn open-overlay-btn" data-show-overlay="end-to-end-encryption">Read more</button></div></div><div id="key-exchange" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key exchange</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="mitm-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">MITM attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="non-repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Non-repudiation</h1><div class="overlay-content">Non-repudiation</div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="onion-routing" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Onion routing</h1><div class="overlay-content"><p>A technique for anonymous communication over a computer network that uses multiple layers of message encryption, analogous to the layers of an onion. The encrypted data is transmitted through a series of network nodes called "onion routers," each of which "peels" away a single layer, revealing the data's next destination. The sender remains anonymous because each intermediary knows only the location of the immediately preceding and following nodes.</p><p>The most widely used onion network is <a href="https://en.wikipedia.org/wiki/Tor_(network)">Tor</a>.</p><p>Some elements of SimpleX network use similar ideas in their design - different addresses for the same resource used by different parties, and additional encryption layers. Currently though, SimpleX messaging protocol does not protect sender network address, as the relay server is chosen by the recipient. The delivery relays chosen by sender that are planned for the future would make SimpleX design closer to onion routing.</p><p><a href="https://en.wikipedia.org/wiki/Onion_routing">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="overlay-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Overlay network</h1><div class="overlay-content"><p>Nodes in the overlay network can be thought of as being connected by virtual or logical links, each of which corresponds to a path, perhaps through many physical links, in the underlying network. Tor, for example, is an overlay network on top of IP network, which in its turn is also an overlay network over some underlying physical network.</p><p>SimpleX Clients also form a network using SMP relays and IP or some other overlay network (e.g., Tor), to communicate with each other. SMP relays, on another hand, do not form a network.</p><p><a href="https://en.wikipedia.org/wiki/Overlay_network">Wikipedia</a></p><h1>Non-repudiation</h1><p>The property of the cryptographic or communication system that allows the recipient of the message to prove to any third party that the sender identified by some cryptographic key sent the message. It is the opposite to <a href="#repudiation">repudiation</a>. While in some context non-repudiation may be desirable (e.g., for contractually binding messages), in the context of private communications it may be undesirable.</p><p><a href="https://en.wikipedia.org/wiki/Non-repudiation">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Repudiation</h1><div class="overlay-content"><p>The property of the cryptographic or communication system that allows the sender of the message to plausibly deny having sent the message, because while the recipient can verify that the message was sent by the sender, they cannot prove it to any third party - the recipient has a technical ability to forge the same encrypted message. This is an important quality of private communications, as it allows to have the conversation that can later be denied, similarly to having a private face-to-face conversation.</p><p>See also <a href="#non-repudiation">non-repudiation</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="pairwise-pseudonymous-identifier" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Pairwise pseudonymous identifier</h1><div class="overlay-content"><p>Generalizing <a href="https://csrc.nist.gov/glossary/term/pairwise_pseudonymous_identifier">the definition</a> from NIST Digital Identity Guidelines, it is an opaque unguessable identifier generated by a service used to access a resource by only one party.</p><p>In the context of SimpleX network, these are the identifiers generated by SMP relays to access anonymous messaging queues, with a separate identifier (and access credential) for each accessing party: recipient, sender and and optional notifications subscriber. The same approach is used by XFTP relays to access file chunks, with separate identifiers (and access credentials) for sender and each recipient.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Peer-to-peer</h1><div class="overlay-content"><p>Peer-to-peer (P2P) is the network architecture when participants have equal rights and communicate directly via a general purpose transport or overlay network. Unlike client-server architecture, all peers in a P2P network both provide and consume the resources. In the context of messaging, P2P architecture usually means that the messages are sent between peers, without user accounts or messages being stored on any servers. Examples are Tox, Briar, Cwtch and many others.</p><p>The advantage is that the participants do not depend on any servers. There are <a href="./SIMPLEX.md#comparison-with-p2p9-messaging-protocols">multiple downsides</a> to that architecture, such as no asynchronous message delivery, the need for network-wide peer addresses, possibility of network-wide attacks, that are usually mitigated only by using a centralized authority. These disadvantages are avoided with <a href="#proxied-peer-to-peer">proxied P2P</a> architecture.</p><p><a href="https://en.wikipedia.org/wiki/Peer-to-peer">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="proxied-peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Proxied peer-to-peer</h1><div class="overlay-content"><p>Network topology of the communication system when peers communicate via proxies that do not form the network themselves. Such design is used in Pond, that has a fixed home server for each user, and in SimpleX, that uses multiple relays providing temporary connections.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="perfect-forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Perfect forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-cryptography" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum cryptography</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-hybrid-crypto" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum hybrid crypto</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="recovery-from-compromise" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Recovery from compromise</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="user-identity" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">User identity</h1><div class="overlay-content"><p>In a communication system it refers to anything that uniquely identifies the users to the network. Depending on the communication network, it can be a phone number, email address, username, public key or a random opaque identifier. Most messaging networks rely on some form of user identity. SimpleX appears to be the only messaging network that does not rely on any kind of user identity - see <a href="https://en.wikipedia.org/wiki/Comparison_of_instant_messaging_protocols">this comparison</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div></body></html>
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+                            target="_blank"
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+                            Terminal Komut Satırı Arayüzü
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
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+                            SimpleX bots API
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+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M20.0408 0.926758C8.9951 0.926758 0.0407715 9.88109 0.0407715 20.9268C0.0407715 31.9724 8.9951 40.9268 20.0408 40.9268C31.0864 40.9268 40.0408 31.9724 40.0408 20.9268C40.0408 9.88109 31.0864 0.926758 20.0408 0.926758ZM9.6421 17.4916H14.1745V31.1098H9.6421V17.4916ZM14.4731 13.279C14.4437 11.9438 13.4889 10.9268 11.9383 10.9268C10.3878 10.9268 9.3741 11.9438 9.3741 13.279C9.3741 14.5866 10.3579 15.6328 11.8794 15.6328H11.9084C13.4889 15.6328 14.4731 14.5866 14.4731 13.279ZM25.3017 17.1718C28.2843 17.1718 30.5203 19.1187 30.5203 23.3015L30.5201 31.1098H25.9879V23.824C25.9879 21.994 25.3319 20.7453 23.6912 20.7453C22.439 20.7453 21.6932 21.5871 21.3656 22.4003C21.2458 22.6916 21.2164 23.0976 21.2164 23.5046V31.1101H16.6834C16.6834 31.1101 16.7431 18.7698 16.6834 17.492H21.2164V19.4208C21.8179 18.4936 22.8953 17.1718 25.3017 17.1718Z" />
+                            </svg>
+                        </a>
+                        <a href="https://simplex.chat/feed.rss" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 512 512" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M256 512C397.385 512 512 397.385 512 256C512 114.615 397.385 0 256 0C114.615 0 0 114.615 0 256C0 397.385 114.615 512 256 512ZM132.791 157.572C215.586 161.137 279.503 196.841 323.612 267.517C344.138 302.436 354.186 339.959 354.57 380.122H406.814C409.639 231.301 280.977 103.1 132.791 106.05V157.572ZM309.994 343.843C311.593 356.035 313.096 367.877 314.65 380.116H261.161C260.496 344.968 248.303 314.452 223.472 289.485C198.613 264.491 168.097 252.282 132.755 251.38V199.743C198.318 196.346 288.694 244.344 309.994 343.843ZM132.766 336.706C129.293 354.261 137.796 370.323 154.848 378.004L155.461 378.242C156.267 378.558 156.912 378.81 157.577 378.985C173.012 383.066 186.298 379.318 196.604 367.168C206.463 355.544 208.397 342.145 201.87 328.354C195.205 314.271 183.419 307.215 167.834 307.356C151.188 307.509 135.971 320.504 132.766 336.706Z" />
+                            </svg>
+                        </a>
+                    </div>
+                </div>
+            </article>
+        </div>
+        <a href="#" class="text-grey-black dark:text-white text-[16px] text-center lg:ltr:text-left lg:rtl:text-right font-medium leading-[28px] tracking-[0.01em] block mt-[60px]">© 2020-2025 SimpleX Chat | Açık Kaynak Projesi</a>
+    </div>
+</section>
+
+
+        <script src="/js/swiper-bundle.min.js"></script>
+        <script src="/js/script.js"></script>
+    </body>
+</html>
diff --git a/tr/index.html b/tr/index.html
index 8c5ace33a7..3fbab704b8 100644
--- a/tr/index.html
+++ b/tr/index.html
@@ -149,6 +149,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/tr/invitation/index.html b/tr/invitation/index.html
index e0e8a0f7c9..afaed666d9 100644
--- a/tr/invitation/index.html
+++ b/tr/invitation/index.html
@@ -129,6 +129,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/tr/messaging/index.html b/tr/messaging/index.html
index b165c927d4..88850e0ad7 100644
--- a/tr/messaging/index.html
+++ b/tr/messaging/index.html
@@ -129,6 +129,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/tr/old/index.html b/tr/old/index.html
index 98633d3f6f..eead127db9 100644
--- a/tr/old/index.html
+++ b/tr/old/index.html
@@ -129,6 +129,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/tr/why/index.html b/tr/why/index.html
index 39da55e173..3f0785a7dc 100644
--- a/tr/why/index.html
+++ b/tr/why/index.html
@@ -129,6 +129,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/transparency/index.html b/transparency/index.html
index 6b6d171fef..3568052102 100644
--- a/transparency/index.html
+++ b/transparency/index.html
@@ -124,6 +124,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/uk/contact/index.html b/uk/contact/index.html
index 5469e933e1..e9b139ab2b 100644
--- a/uk/contact/index.html
+++ b/uk/contact/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/uk/fdroid/index.html b/uk/fdroid/index.html
index 41514068f0..caa88f9fdb 100644
--- a/uk/fdroid/index.html
+++ b/uk/fdroid/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/uk/file/index.html b/uk/file/index.html
new file mode 100644
index 0000000000..86b8075479
--- /dev/null
+++ b/uk/file/index.html
@@ -0,0 +1,888 @@
+<!DOCTYPE html>
+<html lang="uk"
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+            dir="ltr"
+        
+    
+        
+    
+        
+    
+        
+    >
+    <head>
+        <meta charset="UTF-8">
+        <meta http-equiv="X-UA-Compatible" content="IE=edge">
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        <title>SimpleX File Transfer</title>
+        <meta name="description" content="Send files securely with end-to-end encryption"/>
+        <meta name="Content-Type" content="text/html;charset=utf-8"/>
+        
+        <meta http-equiv="onion-location" content="http://isdb4l77sjqoy2qq7ipum6x3at6hyn3jmxfx4zdhc72ufbmuq4ilwkqd.onion/" />
+        <meta property="og:url" content="https://simplex.chat/" />
+        
+        <meta property="og:type" content="website"/>
+        <meta property="og:title" content="SimpleX File Transfer"/>
+        <meta property="og:description" content="Send files securely with end-to-end encryption"/>
+        <meta property="og:image" content="https://simplex.chat/img/share_simplex.jpg"/>
+        <meta name="twitter:card" content="summary"/>
+        <link rel="icon" type="image/png" sizes="96x96" href="/img/favicon.ico"/>
+
+        <link rel="stylesheet" href="/css/swiper-bundle.min.css">
+        <link rel="stylesheet" href="/css/blog.css">
+        <link href="/css/tailwind.css" rel="stylesheet"/>
+        <link rel="stylesheet" href="/css/style.css">
+        <link rel="stylesheet" href="/css/design3-nav.css">
+        <script async defer src="https://buttons.github.io/buttons.js"></script>
+        <script src="/js/flag-anchor.js"></script>
+        
+    </head>
+    <body class="bg-[#F3FAFF] dark:bg-[#000832]">
+        
+
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+    
+
+    
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+
+    
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+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+        
+    
+
+    
+
+    
+
+    
+
+
+<header id="navbar">
+    <a href="/uk" class="logo logo-light ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-light.png" alt="logo"></a>
+    <a href="/uk" class="logo logo-dark ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-dark.png" alt="logo"></a>
+
+    <nav id="menu">
+        <ul>
+            <li class="nav-link ">
+                <a href="/uk">
+                    <span class="nav-link-text">Головна</span>
+                </a>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/directory/">
+                    <span class="nav-link-text">Каталог</span>
+                </a>
+            </li>
+
+            
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">Посібник</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    
+                        <li><a href="/docs/guide/readme.html" class="">Швидкий старт</a></li>
+                    
+                        <li><a href="/docs/guide/send-messages.html" class="">Відправлення повідомлень</a></li>
+                    
+                        <li><a href="/docs/guide/secret-groups.html" class="">Таємні групи</a></li>
+                    
+                        <li><a href="/docs/guide/chat-profiles.html" class="">Профілі чату</a></li>
+                    
+                        <li><a href="/docs/guide/managing-data.html" class="">Управління даними</a></li>
+                    
+                        <li><a href="/docs/guide/audio-video-calls.html" class="">Аудіо та відеовиклики</a></li>
+                    
+                        <li><a href="/docs/guide/privacy-security.html" class="">Конфіденційність та безпека</a></li>
+                    
+                        <li><a href="/docs/guide/app-settings.html" class="">Налаштування додатка</a></li>
+                    
+                        <li><a href="/docs/guide/making-connections.html" class="">Створення підключень</a></li>
+                    
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">Посилання</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md"
+                        target="_blank">Whitepaper
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/privacy">Політика конфіденційності</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/simplex-messaging.md"
+                        target="_blank">Протокол SMP
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/protocol/simplex-chat.html">Протокол чату</a></li>
+                    <li><a href="/docs/glossary.html">Глосарій</a></li>
+
+                    <hr>
+
+                    
+                        <li><a href="/docs/simplex.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX мережа</a></li>
+                    
+                        <li><a href="/docs/business.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX для бізнесу</a></li>
+                    
+                        <li><a href="/docs/directory.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Служба каталогів SimpleX</a></li>
+                    
+                        <li><a href="/docs/android.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Доступ до файлів Android</a></li>
+                    
+                        <li><a href="/docs/server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Хостинг сервера SMP</a></li>
+                    
+                        <li><a href="/docs/xftp-server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Хостинг сервера XFTP</a></li>
+                    
+                        <li><a href="/docs/webrtc.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Сервери WebRTC</a></li>
+                    
+                        <li><a href="/downloads/" class=" lg:px-[20px] inline-block whitespace-nowrap">Завантаження</a></li>
+                    
+                        <li><a href="/reproduce/" class=" lg:px-[20px] inline-block whitespace-nowrap">Verify & reproduce builds</a></li>
+                    
+                        <li><a href="/transparency/" class=" lg:px-[20px] inline-block whitespace-nowrap">Прозорість</a></li>
+                    
+                        <li><a href="/security/" class=" lg:px-[20px] inline-block whitespace-nowrap">Безпека</a></li>
+                    
+                        <li><a href="/faq/" class=" lg:px-[20px] inline-block whitespace-nowrap">ПОШИРЕНІ ЗАПИТАННЯ</a></li>
+                    
+
+                    <hr>
+
+                    <li><a href="/docs/translations.html"
+                    >Переклад SimpleX Chat
+                    </a></li>
+                    <li><a href="/docs/android.html"
+                    >Доступ до файлів Android
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/blob/stable/apps/simplex-bot-advanced/Main.hs"
+                        target="_blank">Приклад чат-бота
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/tree/stable/packages/simplex-chat-client/typescript"
+                        target="_blank">TypeScript SDK
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/cli.html">Термінал CLI</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq"
+                        target="_blank">SimpleXMQ
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/blog">
+                    <span class="nav-link-text">Блог</span>
+                </a>
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+    </nav>
+
+    <div class="right-links">
+        
+            <a class="box-btn token md:hidden" href="/donate">
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+            <path d="M225.368 385.712C222.968 387.046 219.368 390.112 217.368 392.646L213.768 397.312V426.379C213.768 458.246 213.901 458.779 222.968 465.446C228.168 469.312 240.701 469.312 245.901 465.446C254.834 458.779 255.101 457.979 255.501 428.246C256.034 397.579 255.234 394.379 246.834 387.979C241.101 383.579 231.634 382.512 225.368 385.712Z"/>
+            </svg>
+
+            <svg class="moon" width="469" height="469" viewBox="5 5 20 23" xmlns="http://www.w3.org/2000/svg">
+                <path d="M10.895 7.574c0 7.55 5.179 13.67 11.567 13.67 1.588 0 3.101-0.38 4.479-1.063-1.695 4.46-5.996 7.636-11.051 7.636-6.533 0-11.83-5.297-11.83-11.83 0-4.82 2.888-8.959 7.023-10.803-0.116 0.778-0.188 1.573-0.188 2.39z"></path>
+            </svg>
+        </button>
+
+        
+
+        <button id="cross-btn" class="nav-toggle-btn">
+            <svg id="cross" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+            <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z" />
+        </svg>
+        </button>
+    </div>
+</header>
+<div id="mobile-header">
+    <a href="/uk" class="logo flex dark:hidden ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-light.svg" alt="" srcset=""></a>
+    <a href="/uk" class="logo hidden dark:flex ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-dark.svg" alt="" srcset=""></a>
+
+    <button id="hamburger" class="nav-toggle-btn">
+        <svg viewBox="0 0 100 80" width="36" height="36">
+            <rect width="100" height="15"></rect>
+            <rect y="30" width="100" height="15"></rect>
+            <rect y="60" width="100" height="15"></rect>
+        </svg>
+    </button>
+</div>
+
+
+<script>
+// switch theme
+const sunIcon = document.querySelector('.sun');
+const moonIcon = document.querySelector('.moon');
+
+const userTheme = localStorage.getItem('theme');
+const systemTheme = window.matchMedia('(prefers-color-scheme: dark)').matches;
+const prismThemeLink = document.getElementById('prism-theme')
+
+function iconToggle () {
+    sunIcon.classList.toggle('hidden');
+    moonIcon.classList.toggle('hidden');
+}
+
+function themeCheck() {
+    if (userTheme === 'dark' || (!userTheme && systemTheme)) {
+        document.documentElement.classList.add('dark');
+        moonIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+    }
+    else{
+        sunIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+    }
+}
+themeCheck();
+
+function themeSwitch () {
+    if (document.documentElement.classList.contains('dark')) {
+        document.documentElement.classList.remove('dark');
+        localStorage.setItem('theme', 'light');
+        if(prismThemeLink){
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+        iconToggle();
+    } else {
+        document.documentElement.classList.add('dark');
+        localStorage.setItem('theme', 'dark');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+        iconToggle();
+    }
+}
+
+const nav = document.querySelector('header#navbar');
+
+window.addEventListener('click',(e)=>{
+    if(e.target.closest('.nav-link')){
+        if(e.target.closest('.nav-link').classList.contains('active')){
+            e.target.closest('.nav-link').classList.remove('active');
+        }
+        else{
+            document.querySelectorAll('.nav-link').forEach(el => el.classList.remove('active'))
+            e.target.closest('.nav-link').classList.add('active');
+        }
+    }
+    else if(e.target.closest('.nav-toggle-btn')){
+        if(nav.classList.contains('open')){
+            nav.classList.remove('open');
+            document.getElementById('mobile-header').classList.remove('nav-open');
+            document.documentElement.classList.remove('lock-scroll');
+        }
+        else{
+            document.documentElement.classList.add('lock-scroll');
+            document.getElementById('mobile-header').classList.add('nav-open');
+            nav.classList.add('open');
+        }
+    }
+    else if(e.target.closest('.theme-switch-btn')){
+        themeSwitch();
+    }
+});
+</script>
+
+        <html><head><link rel="stylesheet" href="/file-assets/index.css">
+<style>
+  /* Reset website .card styles that conflict with xftp bundle */
+  #app .card { cursor: default; }
+  #app .card,
+  #app .card > div { transition: unset; height: auto; }
+  #app .card > div > * { opacity: unset; max-height: unset; transform: unset; transition: unset; }
+
+  /* Align xftp bundle with website design */
+  #app { font-family: inherit; color: #3F484B; max-width: 600px; width: 100%; margin: 0 auto; padding: 0; }
+  #app .card { background: transparent; box-shadow: none; padding: 0; border-radius: 0; }
+  #app .card > h1 { display: none; }
+  .dark #app h1 { color: #fff; }
+  #app .drop-zone { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; }
+  #app .drop-zone.drag-over { border-color: #0053D0; background: #DBEEFF; }
+  #app .btn { background: #0053D0; border-radius: 34px; padding: 12px 32px; font-size: .9rem; font-weight: 600; }
+  #app .btn:hover { background: #1661D1; }
+  #app .btn-secondary { background: #6b7280; border-radius: 34px; }
+  #app .hint { color: #6b7280; }
+  #app .link-row input { border-radius: 8px; border-color: #c5d3de; }
+  #app .security-note { background: #ffffff; border-radius: 12px; color: #3F484B; }
+  #app .security-note a { color: #0197FF; }
+  #app .success { color: #0053D0; }
+
+  .dark #app { color: #e5e7eb; }
+  .dark #app .card { background: transparent; box-shadow: none; }
+  .dark #app .drop-zone { border-color: #374151; }
+  .dark #app .drop-zone.drag-over { border-color: #70F0F9; background: #1B325C; }
+  .dark #app .btn { background: #70F0F9; color: #000832; }
+  .dark #app .btn:hover { background: #66D9E2; }
+  .dark #app .link-row input { border-color: #374151; background: #071C46; color: #e5e7eb; }
+  .dark #app .security-note { background: #0B2A59; color: #d1d5db; }
+  .dark #app .security-note a { color: #70F0F9; }
+  .dark #app .success { color: #70F0F9; }
+
+  #app #upload-error { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; text-align: center; }
+  .dark #app #upload-error { border-color: #374151; }
+
+  #app .stage > .btn { margin-top: 20px; }
+  #app .security-note { margin-top: 20px; }
+  #app .drop-zone .btn { margin: 10px 0 16px; }
+
+  /* Protocol overlay: image fixed, text scrolls natively */
+  /* Push popup below navbar at all widths */
+  #xftp-protocol { padding-top: 70px; }
+  #xftp-protocol .overlay-card {
+    display: flex;
+    flex-direction: column;
+    position: relative;
+    overflow: hidden;
+  }
+  @media (min-width: 768px) {
+    #xftp-protocol .overlay-card { max-height: min(660px, 100%); }
+  }
+  #xftp-protocol .overlay-card > h1 {
+    flex-shrink: 0;
+    padding-bottom: 16px;
+    margin-bottom: 0;
+    z-index: 1;
+  }
+  @media (min-width: 1024px) and (max-height: 750px) {
+    #xftp-protocol .overlay-card > h1 {
+      font-size: 22px;
+    }
+  }
+  /* .flex is the full-width scroll container */
+  #xftp-protocol .overlay-card > .flex {
+    flex: 1;
+    min-height: 0;
+    overflow-y: auto;
+    scrollbar-width: thin;
+    scrollbar-color: #c5d3de transparent;
+  }
+  .dark #xftp-protocol .overlay-card > .flex {
+    scrollbar-color: #374151 transparent;
+  }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar { width: 6px; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-track { background: transparent; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #c5d3de; border-radius: 3px; }
+  .dark #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #374151; }
+  /* Desktop: text stays left, image fixed on right */
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card > .flex > div:first-child {
+      max-width: 50%;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child {
+      position: absolute;
+      right: 56px;
+      top: 0;
+      bottom: 0;
+      left: 55%;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      pointer-events: none;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child > div {
+      height: 100%;
+      padding: 40px 0;
+      box-sizing: border-box;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child img {
+      height: 100%;
+    }
+  }
+  #xftp-protocol .close-overlay-btn {
+    position: absolute;
+    top: 24px;
+    right: 24px;
+    cursor: pointer;
+    z-index: 3;
+    fill: #606C71;
+  }
+  .dark #xftp-protocol .close-overlay-btn { fill: #e5e7eb; }
+  /* Scroll fade: gradient over text area only, hidden at bottom */
+  #xftp-protocol .overlay-card::after {
+    content: '';
+    position: absolute;
+    bottom: 40px;
+    left: 24px;
+    right: 24px;
+    height: 48px;
+    background: linear-gradient(rgba(255,255,255,0), #fff);
+    pointer-events: none;
+    z-index: 2;
+    transition: opacity 0.2s;
+  }
+  .dark #xftp-protocol .overlay-card::after {
+    background: linear-gradient(rgba(7,28,70,0), #071C46);
+  }
+  @media (min-width: 640px) {
+    #xftp-protocol .overlay-card::after { bottom: 56px; left: 56px; right: 56px; }
+  }
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card::after { right: 55%; }
+  }
+  #xftp-protocol.scrolled-bottom .overlay-card::after { opacity: 0; }
+  #xftp-protocol .overlay-card.flex,
+  #xftp-protocol.flex .overlay-card { animation: overlaySlideIn 0.25s ease-out; }
+  @keyframes overlaySlideIn {
+    from { opacity: 0; transform: scale(0.95) translateY(10px); }
+    to { opacity: 1; transform: scale(1) translateY(0); }
+  }
+  #xftp-protocol.overlay-closing { animation: overlayFadeOut 0.2s ease-in forwards; }
+  #xftp-protocol.overlay-closing .overlay-card { animation: overlaySlideOut 0.2s ease-in forwards; }
+  @keyframes overlayFadeOut {
+    from { opacity: 1; }
+    to { opacity: 0; }
+  }
+  @keyframes overlaySlideOut {
+    from { opacity: 1; transform: scale(1) translateY(0); }
+    to { opacity: 0; transform: scale(0.95) translateY(10px); }
+  }
+
+  .file-proto-link {
+    font-size: 1.25rem;
+    font-weight: 600;
+    background: linear-gradient(90deg, #001aa7 0%, #0095e7 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+    text-decoration: none;
+  }
+  .dark .file-proto-link {
+    background: linear-gradient(90deg, #019bfe 0%, #64fdff 58%, #c8feff 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+  }
+
+</style>
+
+</head><body><section class="bg-secondary-bg-light dark:bg-primary-bg-dark py-10 mt-[66px] px-5">
+  <div class="container flex flex-col items-center mx-auto">
+    <noscript>
+      <p class="text-center text-grey-black dark:text-white py-10">
+        JavaScript is required for file transfer.
+      </p>
+    </noscript>
+    <h1 class="text-[38px] text-center font-bold text-active-blue mb-8">SimpleX File Transfer</h1>
+    <div id="app" data-xftp-app="" data-no-hashchange="" class="w-full">
+      <div class="card">
+        <div class="drop-zone">
+          <p>Drag &amp; drop a file here</p>
+          <p class="hint">or</p>
+          <span class="btn">Choose file</span>
+          <p class="hint">Max 100 MB - <a href="#join-simplex">SimpleX Chat app</a> supports files up to 1 GB</p>
+        </div>
+      </div>
+    </div>
+    <template id="dl-placeholder">
+      <div class="card">
+        <h1>SimpleX File Transfer</h1>
+        <div class="stage">
+          <p>File available</p>
+          <button class="btn">Download</button>
+          <div class="security-note">
+            <p>This file is encrypted - data routers never see file contents, name or size.</p>
+            <p>The encryption key is in the link’s hash fragment - it is never sent to any server.</p>
+            <p>For better security, use <a href="https://simplex.chat/download">SimpleX Chat</a> app.</p>
+          </div>
+        </div>
+      </div>
+    </template>
+    <script>if(location.hash.length>50){var a=document.getElementById("app"),t=document.getElementById("dl-placeholder");if(a&&t)a.replaceChildren(t.content.cloneNode(true))}</script>
+    <script type="module" src="/file-assets/index.js"></script>
+
+    <p class="text-base text-center text-grey-black dark:text-white mt-10 max-w-[600px]">Send files securely with <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span> — no accounts, no tracking.</p>
+    <a href="javascript:void(0)" data-show-overlay="xftp-protocol" class="open-overlay-btn file-proto-link mt-3 block text-center">Learn more about XFTP protocol</a>
+  </div>
+</section>
+
+<section class="bg-primary-bg-light dark:bg-secondary-bg-dark py-[90px] px-5">
+  <div class="container flex flex-col items-center mx-auto text-center">
+    <h2 class="text-[35px] leading-[45px] md:text-[45px] md:leading-[55px] text-grey-black dark:text-white font-bold mb-5">
+      Get SimpleX Chat — the most secure &amp; private messenger
+    </h2>
+    <p class="text-base text-grey-black dark:text-white mb-14 max-w-[600px]">
+      The file transfer you just used uses the same data routing protocol as SimpleX Chat. The app has end-to-end encrypted messaging, voice and video calls, groups, and sending files. No account. No phone. No email. No user profile IDs.
+    </p>
+    <div class="flex items-center justify-center gap-4 flex-wrap">
+      <a href="https://apps.apple.com/us/app/simplex-chat/id1605771084" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apple_store.svg"></a>
+      <a href="https://play.google.com/store/apps/details?id=chat.simplex.app" target="_blank"><img class="h-[40px] w-auto" src="/img/new/google_play.svg"></a>
+      <a href="/uk/fdroid"><img class="h-[40px] w-auto" src="/img/new/f_droid.svg"></a>
+      <a href="https://testflight.apple.com/join/DWuT2LQu" target="_blank"><img class="h-[40px] w-auto" src="/img/new/testflight.png"></a>
+      <a href="https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-aarch64.apk" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apk_icon.png"></a>
+    </div>
+  </div>
+</section>
+
+
+  
+    
+    <div id="xftp-protocol" data-scroll-to="" class="overlay hidden fixed top-0 left-0 bottom-0 right-0 before:absolute before:w-full before:h-full bg-transparent before:bg-secondary-bg-light dark:before:bg-primary-bg-dark before:opacity-90 items-center justify-center p-3 md:p-10 z-[10000]">
+        <div class="overlay-card w-full md:w-fit md:max-w-[1276px] bg-white dark:bg-card-bg-dark opacity-100 h-full md:h-fit md:max-h-[660px] z-[10001] rounded-md shadow-[0px_3px_12px_rgba(0,0,0,0.2)] p-6 py-10 sm:p-14 overflow-auto scale-100">
+            <h1 class="text-3xl font-bold text-active-blue mb-6 ">XFTP protocol: the most secure file transfer</h1>
+            <div class="flex flex-col-reverse lg:flex-row gap-10 justify-between">
+                
+                    <div class="lg:max-w-[448px]">
+                        <div class="text-grey-black dark:text-white flex flex-col gap-6 text-base">
+                            <div>
+  <h3 class="font-bold text-lg mb-2">No account required</h3>
+  <p>Each file fragment uses a new random key. Data routers have no "users" or "files" - they transfer encrypted file fragments of fixed sizes.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Triple-encrypted in your browser</h3>
+  <p>File encryption key is present only in the URL hash fragment - your browser never sends it to a server. There are 3 encryption layers: TLS transport, per-recipient encryption (unique ephemeral key per transfer), and file <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span>.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Independent data routers</h3>
+  <p>When file is split to fragments, it is sent via network routers operated by independent parties. No operator can see the actual file size or name. Even if a router is compromised, it can only see encrypted fragments of fixed size. File fragments are cached by network routers for approximately 48 hours.</p>
+</div>
+<p class="mt-4">
+  <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/xftp.md" target="_blank" rel="noopener" class="text-active-blue hover:underline">
+    Read the XFTP protocol specification →
+  </a>
+</p>
+
+                        </div>
+                    </div>
+                
+
+                
+                    <div class="max-w-[448px]">
+                        <div class="flex items-center justify-center">
+                            <img class="w-full max-w-[448px] min-w-[300px] dark:hidden" src="/img/new/xftp-protocol.svg" alt="">
+                            <img class="w-full max-w-[448px] min-w-[300px] hidden dark:block" src="/img/new/xftp-protocol-dark.svg" alt="">
+                        </div>
+                    </div>
+                
+            </div>
+
+            <svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+                <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z"></path>
+            </svg>
+        </div>
+    </div>
+
+
+
+<script>
+  window.__XFTP_I18N__ = {
+    "title": "SimpleX File Transfer",
+    "dropZone": "Drag & drop a file here",
+    "dropZoneHint": "or",
+    "chooseFile": "Choose file",
+    "maxSizeHint": "Max 100 MB - <a href=\"#join-simplex\">SimpleX Chat app</a> supports files up to 1 GB",
+    "encrypting": "Encrypting…",
+    "uploading": "Uploading…",
+    "cancel": "Cancel",
+    "fileUploaded": "File uploaded",
+    "copy": "Copy",
+    "copied": "Copied!",
+    "share": "Share",
+    "expiryHint": "Files are typically available for 48 hours.",
+    "securityNote1": "Your file was encrypted in the browser - data routers never see file contents, name or size.",
+    "securityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "securityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "retry": "Retry",
+    "downloading": "Downloading…",
+    "decrypting": "Decrypting…",
+    "downloadComplete": "Download complete",
+    "download": "Download",
+    "fileTooLarge": "File too large (%size%). Maximum is 100 MB. The <a href=\"#join-simplex\">SimpleX app</a> supports files up to 1 GB.",
+    "fileEmpty": "File is empty.",
+    "invalidLink": "Invalid or corrupted link.",
+    "initError": "Failed to initialize: %error%",
+    "fileAvailable": "File available (~%size%)",
+    "dlSecurityNote1": "This file is encrypted - data routers never see file contents, name or size.",
+    "dlSecurityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "dlSecurityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "workersRequired": "Web Workers required — update your browser"
+  }
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+<div id="address-portability" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Address portability</h1><div class="overlay-content"><p>Similarly to <a href="https://en.wikipedia.org/wiki/Local_number_portability">phone number portability</a> (the ability of the customer to transfer the service to another provider without changing the number), the address portability means the ability of a communication service customer to change the service provider without changing the service address. Many <a href="#federated-network">federated networks</a> support SRV records to provide address portability, but allowing service users to set up their own domains for the addresses is not as commonly supported by the available server and client software as for email.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="federated-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Federated network</h1><div class="overlay-content"><p>Federated network is provided by several entities that agree upon the standards and operate the network collectively. This allows the users to choose their provider, that will hold their account, their messaging history and contacts, and communicate with other providers' servers on behalf of the user. The examples are email, XMPP, Matrix and Mastodon.</p><p>The advantage of that design is that there is no single organization that all users depend on, and the standards are more difficult to change, unless it benefits all users. There are several disadvantages: 1) the innovation is slower, 2) each user account still depends on a single organization, and in most cases can't move to another provider without changing their network address – there is no <a href="#address-portability">address portability</a>, 3) the security and privacy are inevitably worse than with the centralized networks.</p><p><a href="https://en.wikipedia.org/wiki/Federation_(information_technology)">Federation on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="anonymous-credentials" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Anonymous credentials</h1><div class="overlay-content"><p>The credential that allows proving something, e.g. the right to access some resource, without identifying the user. This credential can either be generated by a trusted party or by the user themselves and provided together with the request to create the resource. The first approach creates some centralized dependency in most cases. The second approach does not require any trust - this is used in SimpleX network to authorize access to the messaging queues.</p><p><a href="https://en.wikipedia.org/wiki/Digital_credential">Digital credential on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="blockchain" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Blockchain</h1><div class="overlay-content"><p>In a wide sense, blockchain means a sequence of blocks of data, where each block contains a cryptographic hash of the previous block, thus providing integrity to the whole chain. Blockchains are used in many communication and information storage systems to provide integrity and immutability of the data. For example, BluRay disks use blockchain. SimpleX messaging queues also use blockchain - each message includes the hash of the previous message, to ensure the integrity – if any message is modified it will be detected by the recipient when the next message is received. Blockchains are a subset of <a href="#merkle-directed-acyclic-graph">Merkle directed acyclic graphs</a>.</p><p>In a more narrow sense, particularly in media, blockchain is used to refer specifically to distributed ledger, where each record also includes the hash of the previous record, but the blocks have to be agreed by the participating peers using some <a href="https://en.wikipedia.org/wiki/Consensus_(computer_science)">consensus protocol</a>.</p><p><a href="https://en.wikipedia.org/wiki/Blockchain">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="merkle-directed-acyclic-graph" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Merkle directed acyclic graph</h1><div class="overlay-content"><p>Also known as Merkle DAG, a data structure based on a general graph structure where node contains the cryptographic hashes of the previous nodes that point to it. Merkle trees are a subset of Merkle DAGs - in this case each leaf contains a cryptographic hash of the parent.</p><p>This structure by design allows to verify the integrity of the whole structure by computing its hashes and comparing with the hashes included in the nodes, in the same way as with <a href="#blockchain">blockchain</a>.</p><p>The motivation to use DAG in distributed environments instead of a simpler linear blockchain is to allow concurrent additions, when there is no requirement for a single order of added items. Merkle DAG is used, for example, in <a href="https://en.wikipedia.org/wiki/InterPlanetary_File_System">IPFS</a> and will be used in decentralized SimpleX groups.</p><p><a href="https://en.wikipedia.org/wiki/Merkle_tree">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="break-in-recovery" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Break-in recovery</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="double-ratchet-algorithm" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Double ratchet algorithm</h1><div class="overlay-content"><p>It is used by two parties to exchange <a href="#end-to-end-encryption">end-to-end encrypted</a> messages. The parties will use some <a href="#key-agreement-protocol">key agreement protocol</a> to agree on the initial shared secret key.</p><p>Double Ratchet algorithm provides <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>. It is <a href="https://signal.org/docs/specifications/doubleratchet">designed by Signal</a>, and used in SimpleX Chat and many other secure messengers. Most experts consider it the state-of-the-art encryption protocol in message encryption.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="centralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Centralized network</h1><div class="overlay-content"><p>Centralized networks are provided or controlled by a single entity. The examples are Threema, Signal, WhatsApp and Telegram. The advantage of that design is that the provider can innovate faster, and has a centralized approach to security. But the disadvantage is that the provider can change or discontinue the service, and leak, sell or disclose in some other way all users' data, including who they are connected with.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="content-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Content padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="decentralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Decentralized network</h1><div class="overlay-content"><p>Decentralized network is often used to mean "the network based on decentralized blockchain". In its original meaning, decentralized network means that there is no central authority or any other point of centralization in the network, other than network protocols specification. The advantage of decentralized networks is that they are resilient to censorship and to the provider going out of business. The disadvantage is that they are often slower to innovate, and the security may be worse than with the centralized network.</p><p>The examples of decentralized networks are email, web, DNS, XMPP, Matrix, BitTorrent, etc. All these examples have a shared global application-level address space. Cryptocurrency blockchains not only have a shared address space, but also a shared state, so they are more centralized than email. Tor network also has a shared global address space, but also a central authority. SimpleX network does not have a shared application-level address space (it relies on the shared transport-level addresses - SMP relay hostnames or IP addresses), and it does not have any central authority or any shared state.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="defense-in-depth" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Defense in depth</h1><div class="overlay-content"><p>Originally, it is a military strategy that seeks to delay rather than prevent the advance of an attacker, buying time and causing additional casualties by yielding space.</p><p>In information security, defense in depth represents the use of multiple computer security techniques to help mitigate the risk of one component of the defense being compromised or circumvented. An example could be anti-virus software installed on individual workstations when there is already virus protection on the firewalls and servers within the same environment.</p><p>SimpleX network applies defense in depth approach to security by having multiple layers for the communication security and privacy:</p><ul>
+<li>double ratchet algorithm for <a href="#end-to-end-encryption">end-to-end encryption</a> with <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>,</li>
+<li>additional layer of end-to-end encryption for each messaging queue and another encryption layer of encryption from the server to the recipient inside TLS to prevent correlation by ciphertext,</li>
+<li>TLS with only strong ciphers allowed,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-server connection via server offline certificate verification,</li>
+<li>mitigation of replay attacks via signing over transport channel binding,</li>
+<li>multiple layers of <a href="#message-padding">message padding</a> to reduce efficiency of traffic analysis,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-client out-of-band channel when sending the invitation,</li>
+<li>rotation of delivery queues to reduce efficiency of traffic analysis,</li>
+<li>etc.</li>
+</ul><p><a href="https://en.wikipedia.org/wiki/Defence_in_depth">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="end-to-end-encryption" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">End-to-end encryption</h1><div class="overlay-content"><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><p>End-to-end encryption requires agreeing cryptographic keys between the sender and the recipient in a way that no eavesdroppers can access the agreed keys. See <a href="#key-agreement-protocol">key agreement protocol</a>. This key exchange can be compromised via <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>, particularly if key exchange happens via the same communication provider and no out-of-band channel is used to verify key exchange.</p><p><a href="https://en.wikipedia.org/wiki/End-to-end_encryption">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-compromise-security" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-compromise security</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="man-in-the-middle-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Man-in-the-middle attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="message-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Message padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="key-agreement-protocol" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key agreement protocol</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="tooltip-end-to-end-encryption" class="glossary-tooltip"><div class="tooltip-content"><h4 class="tooltip-title">End-to-end encryption</h4><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><button class="read-more-btn open-overlay-btn" data-show-overlay="end-to-end-encryption">Read more</button></div></div><div id="key-exchange" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key exchange</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="mitm-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">MITM attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="non-repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Non-repudiation</h1><div class="overlay-content">Non-repudiation</div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="onion-routing" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Onion routing</h1><div class="overlay-content"><p>A technique for anonymous communication over a computer network that uses multiple layers of message encryption, analogous to the layers of an onion. The encrypted data is transmitted through a series of network nodes called "onion routers," each of which "peels" away a single layer, revealing the data's next destination. The sender remains anonymous because each intermediary knows only the location of the immediately preceding and following nodes.</p><p>The most widely used onion network is <a href="https://en.wikipedia.org/wiki/Tor_(network)">Tor</a>.</p><p>Some elements of SimpleX network use similar ideas in their design - different addresses for the same resource used by different parties, and additional encryption layers. Currently though, SimpleX messaging protocol does not protect sender network address, as the relay server is chosen by the recipient. The delivery relays chosen by sender that are planned for the future would make SimpleX design closer to onion routing.</p><p><a href="https://en.wikipedia.org/wiki/Onion_routing">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="overlay-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Overlay network</h1><div class="overlay-content"><p>Nodes in the overlay network can be thought of as being connected by virtual or logical links, each of which corresponds to a path, perhaps through many physical links, in the underlying network. Tor, for example, is an overlay network on top of IP network, which in its turn is also an overlay network over some underlying physical network.</p><p>SimpleX Clients also form a network using SMP relays and IP or some other overlay network (e.g., Tor), to communicate with each other. SMP relays, on another hand, do not form a network.</p><p><a href="https://en.wikipedia.org/wiki/Overlay_network">Wikipedia</a></p><h1>Non-repudiation</h1><p>The property of the cryptographic or communication system that allows the recipient of the message to prove to any third party that the sender identified by some cryptographic key sent the message. It is the opposite to <a href="#repudiation">repudiation</a>. While in some context non-repudiation may be desirable (e.g., for contractually binding messages), in the context of private communications it may be undesirable.</p><p><a href="https://en.wikipedia.org/wiki/Non-repudiation">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Repudiation</h1><div class="overlay-content"><p>The property of the cryptographic or communication system that allows the sender of the message to plausibly deny having sent the message, because while the recipient can verify that the message was sent by the sender, they cannot prove it to any third party - the recipient has a technical ability to forge the same encrypted message. This is an important quality of private communications, as it allows to have the conversation that can later be denied, similarly to having a private face-to-face conversation.</p><p>See also <a href="#non-repudiation">non-repudiation</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="pairwise-pseudonymous-identifier" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Pairwise pseudonymous identifier</h1><div class="overlay-content"><p>Generalizing <a href="https://csrc.nist.gov/glossary/term/pairwise_pseudonymous_identifier">the definition</a> from NIST Digital Identity Guidelines, it is an opaque unguessable identifier generated by a service used to access a resource by only one party.</p><p>In the context of SimpleX network, these are the identifiers generated by SMP relays to access anonymous messaging queues, with a separate identifier (and access credential) for each accessing party: recipient, sender and and optional notifications subscriber. The same approach is used by XFTP relays to access file chunks, with separate identifiers (and access credentials) for sender and each recipient.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Peer-to-peer</h1><div class="overlay-content"><p>Peer-to-peer (P2P) is the network architecture when participants have equal rights and communicate directly via a general purpose transport or overlay network. Unlike client-server architecture, all peers in a P2P network both provide and consume the resources. In the context of messaging, P2P architecture usually means that the messages are sent between peers, without user accounts or messages being stored on any servers. Examples are Tox, Briar, Cwtch and many others.</p><p>The advantage is that the participants do not depend on any servers. There are <a href="./SIMPLEX.md#comparison-with-p2p9-messaging-protocols">multiple downsides</a> to that architecture, such as no asynchronous message delivery, the need for network-wide peer addresses, possibility of network-wide attacks, that are usually mitigated only by using a centralized authority. These disadvantages are avoided with <a href="#proxied-peer-to-peer">proxied P2P</a> architecture.</p><p><a href="https://en.wikipedia.org/wiki/Peer-to-peer">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="proxied-peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Proxied peer-to-peer</h1><div class="overlay-content"><p>Network topology of the communication system when peers communicate via proxies that do not form the network themselves. Such design is used in Pond, that has a fixed home server for each user, and in SimpleX, that uses multiple relays providing temporary connections.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="perfect-forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Perfect forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-cryptography" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum cryptography</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-hybrid-crypto" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum hybrid crypto</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="recovery-from-compromise" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Recovery from compromise</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="user-identity" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">User identity</h1><div class="overlay-content"><p>In a communication system it refers to anything that uniquely identifies the users to the network. Depending on the communication network, it can be a phone number, email address, username, public key or a random opaque identifier. Most messaging networks rely on some form of user identity. SimpleX appears to be the only messaging network that does not rely on any kind of user identity - see <a href="https://en.wikipedia.org/wiki/Comparison_of_instant_messaging_protocols">this comparison</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div></body></html>
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+                            </svg>
+                        </a>
+                        <a href="https://twitter.com/simplexchat" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 41 41" fill="none" xmlns="http://www.w3.org/2000/svg">
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+                            </svg>
+                        </a>
+                        <a href="https://www.linkedin.com/company/simplex-chat/" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 41 41" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M20.0408 0.926758C8.9951 0.926758 0.0407715 9.88109 0.0407715 20.9268C0.0407715 31.9724 8.9951 40.9268 20.0408 40.9268C31.0864 40.9268 40.0408 31.9724 40.0408 20.9268C40.0408 9.88109 31.0864 0.926758 20.0408 0.926758ZM9.6421 17.4916H14.1745V31.1098H9.6421V17.4916ZM14.4731 13.279C14.4437 11.9438 13.4889 10.9268 11.9383 10.9268C10.3878 10.9268 9.3741 11.9438 9.3741 13.279C9.3741 14.5866 10.3579 15.6328 11.8794 15.6328H11.9084C13.4889 15.6328 14.4731 14.5866 14.4731 13.279ZM25.3017 17.1718C28.2843 17.1718 30.5203 19.1187 30.5203 23.3015L30.5201 31.1098H25.9879V23.824C25.9879 21.994 25.3319 20.7453 23.6912 20.7453C22.439 20.7453 21.6932 21.5871 21.3656 22.4003C21.2458 22.6916 21.2164 23.0976 21.2164 23.5046V31.1101H16.6834C16.6834 31.1101 16.7431 18.7698 16.6834 17.492H21.2164V19.4208C21.8179 18.4936 22.8953 17.1718 25.3017 17.1718Z" />
+                            </svg>
+                        </a>
+                        <a href="https://simplex.chat/feed.rss" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 512 512" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M256 512C397.385 512 512 397.385 512 256C512 114.615 397.385 0 256 0C114.615 0 0 114.615 0 256C0 397.385 114.615 512 256 512ZM132.791 157.572C215.586 161.137 279.503 196.841 323.612 267.517C344.138 302.436 354.186 339.959 354.57 380.122H406.814C409.639 231.301 280.977 103.1 132.791 106.05V157.572ZM309.994 343.843C311.593 356.035 313.096 367.877 314.65 380.116H261.161C260.496 344.968 248.303 314.452 223.472 289.485C198.613 264.491 168.097 252.282 132.755 251.38V199.743C198.318 196.346 288.694 244.344 309.994 343.843ZM132.766 336.706C129.293 354.261 137.796 370.323 154.848 378.004L155.461 378.242C156.267 378.558 156.912 378.81 157.577 378.985C173.012 383.066 186.298 379.318 196.604 367.168C206.463 355.544 208.397 342.145 201.87 328.354C195.205 314.271 183.419 307.215 167.834 307.356C151.188 307.509 135.971 320.504 132.766 336.706Z" />
+                            </svg>
+                        </a>
+                    </div>
+                </div>
+            </article>
+        </div>
+        <a href="#" class="text-grey-black dark:text-white text-[16px] text-center lg:ltr:text-left lg:rtl:text-right font-medium leading-[28px] tracking-[0.01em] block mt-[60px]">© 2020-2025 SimpleX Chat | Проект з відкритим кодом</a>
+    </div>
+</section>
+
+
+        <script src="/js/swiper-bundle.min.js"></script>
+        <script src="/js/script.js"></script>
+    </body>
+</html>
diff --git a/uk/index.html b/uk/index.html
index 9be2ffa1c6..c8d6c76f48 100644
--- a/uk/index.html
+++ b/uk/index.html
@@ -153,6 +153,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/uk/invitation/index.html b/uk/invitation/index.html
index 0480019543..a3c63c3500 100644
--- a/uk/invitation/index.html
+++ b/uk/invitation/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/uk/messaging/index.html b/uk/messaging/index.html
index 44cfa93bfd..cf06017657 100644
--- a/uk/messaging/index.html
+++ b/uk/messaging/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/uk/old/index.html b/uk/old/index.html
index bd815906dc..4e17da08f6 100644
--- a/uk/old/index.html
+++ b/uk/old/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/uk/why/index.html b/uk/why/index.html
index d9e0865c76..d376291c23 100644
--- a/uk/why/index.html
+++ b/uk/why/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/vouchers/index.html b/vouchers/index.html
index 4d074a5b21..972600635a 100644
--- a/vouchers/index.html
+++ b/vouchers/index.html
@@ -314,6 +314,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/why/index.html b/why/index.html
index 6dd1221669..b0d3ed68ba 100644
--- a/why/index.html
+++ b/why/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/zh_Hans/contact/index.html b/zh_Hans/contact/index.html
index 6aa175a1be..5fde04eb83 100644
--- a/zh_Hans/contact/index.html
+++ b/zh_Hans/contact/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/zh_Hans/fdroid/index.html b/zh_Hans/fdroid/index.html
index 56406d2b32..1a0dd5038a 100644
--- a/zh_Hans/fdroid/index.html
+++ b/zh_Hans/fdroid/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/zh_Hans/file/index.html b/zh_Hans/file/index.html
new file mode 100644
index 0000000000..fc32721a22
--- /dev/null
+++ b/zh_Hans/file/index.html
@@ -0,0 +1,888 @@
+<!DOCTYPE html>
+<html lang="zh_Hans"
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+            dir="ltr"
+        
+    
+        
+    
+        
+    >
+    <head>
+        <meta charset="UTF-8">
+        <meta http-equiv="X-UA-Compatible" content="IE=edge">
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        <title>SimpleX File Transfer</title>
+        <meta name="description" content="Send files securely with end-to-end encryption"/>
+        <meta name="Content-Type" content="text/html;charset=utf-8"/>
+        
+        <meta http-equiv="onion-location" content="http://isdb4l77sjqoy2qq7ipum6x3at6hyn3jmxfx4zdhc72ufbmuq4ilwkqd.onion/" />
+        <meta property="og:url" content="https://simplex.chat/" />
+        
+        <meta property="og:type" content="website"/>
+        <meta property="og:title" content="SimpleX File Transfer"/>
+        <meta property="og:description" content="Send files securely with end-to-end encryption"/>
+        <meta property="og:image" content="https://simplex.chat/img/share_simplex.jpg"/>
+        <meta name="twitter:card" content="summary"/>
+        <link rel="icon" type="image/png" sizes="96x96" href="/img/favicon.ico"/>
+
+        <link rel="stylesheet" href="/css/swiper-bundle.min.css">
+        <link rel="stylesheet" href="/css/blog.css">
+        <link href="/css/tailwind.css" rel="stylesheet"/>
+        <link rel="stylesheet" href="/css/style.css">
+        <link rel="stylesheet" href="/css/design3-nav.css">
+        <script async defer src="https://buttons.github.io/buttons.js"></script>
+        <script src="/js/flag-anchor.js"></script>
+        
+    </head>
+    <body class="bg-[#F3FAFF] dark:bg-[#000832]">
+        
+
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+        
+    
+
+    
+
+    
+
+
+<header id="navbar">
+    <a href="/zh_Hans" class="logo logo-light ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-light.png" alt="logo"></a>
+    <a href="/zh_Hans" class="logo logo-dark ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-dark.png" alt="logo"></a>
+
+    <nav id="menu">
+        <ul>
+            <li class="nav-link ">
+                <a href="/zh_Hans">
+                    <span class="nav-link-text">主页</span>
+                </a>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/directory/">
+                    <span class="nav-link-text">目录</span>
+                </a>
+            </li>
+
+            
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">指南</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    
+                        <li><a href="/docs/guide/readme.html" class="">快速指南</a></li>
+                    
+                        <li><a href="/docs/guide/send-messages.html" class="">发送消息</a></li>
+                    
+                        <li><a href="/docs/guide/secret-groups.html" class="">秘密群组</a></li>
+                    
+                        <li><a href="/docs/guide/chat-profiles.html" class="">聊天档案</a></li>
+                    
+                        <li><a href="/docs/guide/managing-data.html" class="">管理数据</a></li>
+                    
+                        <li><a href="/docs/guide/audio-video-calls.html" class="">语音和视频通话</a></li>
+                    
+                        <li><a href="/docs/guide/privacy-security.html" class="">隐私和安全</a></li>
+                    
+                        <li><a href="/docs/guide/app-settings.html" class="">应用设置</a></li>
+                    
+                        <li><a href="/docs/guide/making-connections.html" class="">建立连接</a></li>
+                    
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">参考资料</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md"
+                        target="_blank">Whitepaper
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/privacy">隐私政策</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/simplex-messaging.md"
+                        target="_blank">SMP协议
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/protocol/simplex-chat.html">聊天协议</a></li>
+                    <li><a href="/docs/glossary.html">术语表</a></li>
+
+                    <hr>
+
+                    
+                        <li><a href="/docs/simplex.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX 网络</a></li>
+                    
+                        <li><a href="/docs/business.html" class=" lg:px-[20px] inline-block whitespace-nowrap">企业版 SimpleX</a></li>
+                    
+                        <li><a href="/docs/directory.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX 目录</a></li>
+                    
+                        <li><a href="/docs/android.html" class=" lg:px-[20px] inline-block whitespace-nowrap">访问 Android 文件</a></li>
+                    
+                        <li><a href="/docs/server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">托管 SMP 服务器</a></li>
+                    
+                        <li><a href="/docs/xftp-server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">托管 XFTP 服务器</a></li>
+                    
+                        <li><a href="/docs/webrtc.html" class=" lg:px-[20px] inline-block whitespace-nowrap">WebRTC 服务器</a></li>
+                    
+                        <li><a href="/downloads/" class=" lg:px-[20px] inline-block whitespace-nowrap">下载</a></li>
+                    
+                        <li><a href="/reproduce/" class=" lg:px-[20px] inline-block whitespace-nowrap">Verify & reproduce builds</a></li>
+                    
+                        <li><a href="/transparency/" class=" lg:px-[20px] inline-block whitespace-nowrap">透明度</a></li>
+                    
+                        <li><a href="/security/" class=" lg:px-[20px] inline-block whitespace-nowrap">安全性</a></li>
+                    
+                        <li><a href="/faq/" class=" lg:px-[20px] inline-block whitespace-nowrap">常问问题</a></li>
+                    
+
+                    <hr>
+
+                    <li><a href="/docs/translations.html"
+                    >翻译 SimpleX Chat
+                    </a></li>
+                    <li><a href="/docs/android.html"
+                    >访问 Android 文件
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/blob/stable/apps/simplex-bot-advanced/Main.hs"
+                        target="_blank">聊天机器人示例
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/tree/stable/packages/simplex-chat-client/typescript"
+                        target="_blank">TypeScript SDK
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/cli.html">命令行程式</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq"
+                        target="_blank">SimpleXMQ
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/blog">
+                    <span class="nav-link-text">博客</span>
+                </a>
+            </li>
+        </ul>
+    </nav>
+
+    <div class="right-links">
+        
+            <a class="box-btn token md:hidden" href="/donate">
+                捐赠
+            </a>
+        
+        <button href="#" class="theme-switch-btn">
+            <svg class="sun" width="469" height="469" viewBox="0 0 469 469" fill="none" xmlns="http://www.w3.org/2000/svg">
+            <path d="M225.768 1.44594C220.301 3.84594 214.701 10.6459 213.768 15.9793C213.234 18.3793 213.101 31.7126 213.368 45.7126L213.768 71.1793L217.634 76.1126C226.701 88.1126 242.968 87.5793 252.301 75.0459C254.968 71.5793 255.101 69.5793 255.101 42.2459C255.101 14.9126 254.968 12.9126 252.301 9.44594C250.834 7.44594 248.034 4.51261 246.168 3.17928C241.768 -0.154057 231.101 -1.08739 225.768 1.44594Z"/>
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+            <path d="M103.101 336.779C96.7013 340.779 65.368 373.179 63.768 377.313C57.368 394.513 74.168 411.313 91.368 404.913C95.6347 403.179 129.635 369.979 132.568 364.646C135.368 359.446 134.968 349.046 131.768 343.846C126.168 334.646 112.035 331.179 103.101 336.779Z"/>
+            <path d="M344.035 336.912C341.635 338.379 338.569 341.445 337.102 343.845C333.902 349.045 333.502 359.445 336.302 364.645C339.235 369.979 373.235 403.179 377.502 404.912C387.235 408.512 397.102 404.912 403.369 395.712C406.702 390.779 407.369 383.579 405.102 377.312C403.369 373.045 370.169 339.045 364.835 336.112C359.635 333.312 349.235 333.712 344.035 336.912Z"/>
+            <path d="M225.368 385.712C222.968 387.046 219.368 390.112 217.368 392.646L213.768 397.312V426.379C213.768 458.246 213.901 458.779 222.968 465.446C228.168 469.312 240.701 469.312 245.901 465.446C254.834 458.779 255.101 457.979 255.501 428.246C256.034 397.579 255.234 394.379 246.834 387.979C241.101 383.579 231.634 382.512 225.368 385.712Z"/>
+            </svg>
+
+            <svg class="moon" width="469" height="469" viewBox="5 5 20 23" xmlns="http://www.w3.org/2000/svg">
+                <path d="M10.895 7.574c0 7.55 5.179 13.67 11.567 13.67 1.588 0 3.101-0.38 4.479-1.063-1.695 4.46-5.996 7.636-11.051 7.636-6.533 0-11.83-5.297-11.83-11.83 0-4.82 2.888-8.959 7.023-10.803-0.116 0.778-0.188 1.573-0.188 2.39z"></path>
+            </svg>
+        </button>
+
+        
+
+        <button id="cross-btn" class="nav-toggle-btn">
+            <svg id="cross" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+            <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z" />
+        </svg>
+        </button>
+    </div>
+</header>
+<div id="mobile-header">
+    <a href="/zh_Hans" class="logo flex dark:hidden ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-light.svg" alt="" srcset=""></a>
+    <a href="/zh_Hans" class="logo hidden dark:flex ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-dark.svg" alt="" srcset=""></a>
+
+    <button id="hamburger" class="nav-toggle-btn">
+        <svg viewBox="0 0 100 80" width="36" height="36">
+            <rect width="100" height="15"></rect>
+            <rect y="30" width="100" height="15"></rect>
+            <rect y="60" width="100" height="15"></rect>
+        </svg>
+    </button>
+</div>
+
+
+<script>
+// switch theme
+const sunIcon = document.querySelector('.sun');
+const moonIcon = document.querySelector('.moon');
+
+const userTheme = localStorage.getItem('theme');
+const systemTheme = window.matchMedia('(prefers-color-scheme: dark)').matches;
+const prismThemeLink = document.getElementById('prism-theme')
+
+function iconToggle () {
+    sunIcon.classList.toggle('hidden');
+    moonIcon.classList.toggle('hidden');
+}
+
+function themeCheck() {
+    if (userTheme === 'dark' || (!userTheme && systemTheme)) {
+        document.documentElement.classList.add('dark');
+        moonIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+    }
+    else{
+        sunIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+    }
+}
+themeCheck();
+
+function themeSwitch () {
+    if (document.documentElement.classList.contains('dark')) {
+        document.documentElement.classList.remove('dark');
+        localStorage.setItem('theme', 'light');
+        if(prismThemeLink){
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+        iconToggle();
+    } else {
+        document.documentElement.classList.add('dark');
+        localStorage.setItem('theme', 'dark');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+        iconToggle();
+    }
+}
+
+const nav = document.querySelector('header#navbar');
+
+window.addEventListener('click',(e)=>{
+    if(e.target.closest('.nav-link')){
+        if(e.target.closest('.nav-link').classList.contains('active')){
+            e.target.closest('.nav-link').classList.remove('active');
+        }
+        else{
+            document.querySelectorAll('.nav-link').forEach(el => el.classList.remove('active'))
+            e.target.closest('.nav-link').classList.add('active');
+        }
+    }
+    else if(e.target.closest('.nav-toggle-btn')){
+        if(nav.classList.contains('open')){
+            nav.classList.remove('open');
+            document.getElementById('mobile-header').classList.remove('nav-open');
+            document.documentElement.classList.remove('lock-scroll');
+        }
+        else{
+            document.documentElement.classList.add('lock-scroll');
+            document.getElementById('mobile-header').classList.add('nav-open');
+            nav.classList.add('open');
+        }
+    }
+    else if(e.target.closest('.theme-switch-btn')){
+        themeSwitch();
+    }
+});
+</script>
+
+        <html><head><link rel="stylesheet" href="/file-assets/index.css">
+<style>
+  /* Reset website .card styles that conflict with xftp bundle */
+  #app .card { cursor: default; }
+  #app .card,
+  #app .card > div { transition: unset; height: auto; }
+  #app .card > div > * { opacity: unset; max-height: unset; transform: unset; transition: unset; }
+
+  /* Align xftp bundle with website design */
+  #app { font-family: inherit; color: #3F484B; max-width: 600px; width: 100%; margin: 0 auto; padding: 0; }
+  #app .card { background: transparent; box-shadow: none; padding: 0; border-radius: 0; }
+  #app .card > h1 { display: none; }
+  .dark #app h1 { color: #fff; }
+  #app .drop-zone { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; }
+  #app .drop-zone.drag-over { border-color: #0053D0; background: #DBEEFF; }
+  #app .btn { background: #0053D0; border-radius: 34px; padding: 12px 32px; font-size: .9rem; font-weight: 600; }
+  #app .btn:hover { background: #1661D1; }
+  #app .btn-secondary { background: #6b7280; border-radius: 34px; }
+  #app .hint { color: #6b7280; }
+  #app .link-row input { border-radius: 8px; border-color: #c5d3de; }
+  #app .security-note { background: #ffffff; border-radius: 12px; color: #3F484B; }
+  #app .security-note a { color: #0197FF; }
+  #app .success { color: #0053D0; }
+
+  .dark #app { color: #e5e7eb; }
+  .dark #app .card { background: transparent; box-shadow: none; }
+  .dark #app .drop-zone { border-color: #374151; }
+  .dark #app .drop-zone.drag-over { border-color: #70F0F9; background: #1B325C; }
+  .dark #app .btn { background: #70F0F9; color: #000832; }
+  .dark #app .btn:hover { background: #66D9E2; }
+  .dark #app .link-row input { border-color: #374151; background: #071C46; color: #e5e7eb; }
+  .dark #app .security-note { background: #0B2A59; color: #d1d5db; }
+  .dark #app .security-note a { color: #70F0F9; }
+  .dark #app .success { color: #70F0F9; }
+
+  #app #upload-error { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; text-align: center; }
+  .dark #app #upload-error { border-color: #374151; }
+
+  #app .stage > .btn { margin-top: 20px; }
+  #app .security-note { margin-top: 20px; }
+  #app .drop-zone .btn { margin: 10px 0 16px; }
+
+  /* Protocol overlay: image fixed, text scrolls natively */
+  /* Push popup below navbar at all widths */
+  #xftp-protocol { padding-top: 70px; }
+  #xftp-protocol .overlay-card {
+    display: flex;
+    flex-direction: column;
+    position: relative;
+    overflow: hidden;
+  }
+  @media (min-width: 768px) {
+    #xftp-protocol .overlay-card { max-height: min(660px, 100%); }
+  }
+  #xftp-protocol .overlay-card > h1 {
+    flex-shrink: 0;
+    padding-bottom: 16px;
+    margin-bottom: 0;
+    z-index: 1;
+  }
+  @media (min-width: 1024px) and (max-height: 750px) {
+    #xftp-protocol .overlay-card > h1 {
+      font-size: 22px;
+    }
+  }
+  /* .flex is the full-width scroll container */
+  #xftp-protocol .overlay-card > .flex {
+    flex: 1;
+    min-height: 0;
+    overflow-y: auto;
+    scrollbar-width: thin;
+    scrollbar-color: #c5d3de transparent;
+  }
+  .dark #xftp-protocol .overlay-card > .flex {
+    scrollbar-color: #374151 transparent;
+  }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar { width: 6px; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-track { background: transparent; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #c5d3de; border-radius: 3px; }
+  .dark #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #374151; }
+  /* Desktop: text stays left, image fixed on right */
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card > .flex > div:first-child {
+      max-width: 50%;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child {
+      position: absolute;
+      right: 56px;
+      top: 0;
+      bottom: 0;
+      left: 55%;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      pointer-events: none;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child > div {
+      height: 100%;
+      padding: 40px 0;
+      box-sizing: border-box;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child img {
+      height: 100%;
+    }
+  }
+  #xftp-protocol .close-overlay-btn {
+    position: absolute;
+    top: 24px;
+    right: 24px;
+    cursor: pointer;
+    z-index: 3;
+    fill: #606C71;
+  }
+  .dark #xftp-protocol .close-overlay-btn { fill: #e5e7eb; }
+  /* Scroll fade: gradient over text area only, hidden at bottom */
+  #xftp-protocol .overlay-card::after {
+    content: '';
+    position: absolute;
+    bottom: 40px;
+    left: 24px;
+    right: 24px;
+    height: 48px;
+    background: linear-gradient(rgba(255,255,255,0), #fff);
+    pointer-events: none;
+    z-index: 2;
+    transition: opacity 0.2s;
+  }
+  .dark #xftp-protocol .overlay-card::after {
+    background: linear-gradient(rgba(7,28,70,0), #071C46);
+  }
+  @media (min-width: 640px) {
+    #xftp-protocol .overlay-card::after { bottom: 56px; left: 56px; right: 56px; }
+  }
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card::after { right: 55%; }
+  }
+  #xftp-protocol.scrolled-bottom .overlay-card::after { opacity: 0; }
+  #xftp-protocol .overlay-card.flex,
+  #xftp-protocol.flex .overlay-card { animation: overlaySlideIn 0.25s ease-out; }
+  @keyframes overlaySlideIn {
+    from { opacity: 0; transform: scale(0.95) translateY(10px); }
+    to { opacity: 1; transform: scale(1) translateY(0); }
+  }
+  #xftp-protocol.overlay-closing { animation: overlayFadeOut 0.2s ease-in forwards; }
+  #xftp-protocol.overlay-closing .overlay-card { animation: overlaySlideOut 0.2s ease-in forwards; }
+  @keyframes overlayFadeOut {
+    from { opacity: 1; }
+    to { opacity: 0; }
+  }
+  @keyframes overlaySlideOut {
+    from { opacity: 1; transform: scale(1) translateY(0); }
+    to { opacity: 0; transform: scale(0.95) translateY(10px); }
+  }
+
+  .file-proto-link {
+    font-size: 1.25rem;
+    font-weight: 600;
+    background: linear-gradient(90deg, #001aa7 0%, #0095e7 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+    text-decoration: none;
+  }
+  .dark .file-proto-link {
+    background: linear-gradient(90deg, #019bfe 0%, #64fdff 58%, #c8feff 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+  }
+
+</style>
+
+</head><body><section class="bg-secondary-bg-light dark:bg-primary-bg-dark py-10 mt-[66px] px-5">
+  <div class="container flex flex-col items-center mx-auto">
+    <noscript>
+      <p class="text-center text-grey-black dark:text-white py-10">
+        JavaScript is required for file transfer.
+      </p>
+    </noscript>
+    <h1 class="text-[38px] text-center font-bold text-active-blue mb-8">SimpleX File Transfer</h1>
+    <div id="app" data-xftp-app="" data-no-hashchange="" class="w-full">
+      <div class="card">
+        <div class="drop-zone">
+          <p>Drag &amp; drop a file here</p>
+          <p class="hint">or</p>
+          <span class="btn">Choose file</span>
+          <p class="hint">Max 100 MB - <a href="#join-simplex">SimpleX Chat app</a> supports files up to 1 GB</p>
+        </div>
+      </div>
+    </div>
+    <template id="dl-placeholder">
+      <div class="card">
+        <h1>SimpleX File Transfer</h1>
+        <div class="stage">
+          <p>File available</p>
+          <button class="btn">Download</button>
+          <div class="security-note">
+            <p>This file is encrypted - data routers never see file contents, name or size.</p>
+            <p>The encryption key is in the link’s hash fragment - it is never sent to any server.</p>
+            <p>For better security, use <a href="https://simplex.chat/download">SimpleX Chat</a> app.</p>
+          </div>
+        </div>
+      </div>
+    </template>
+    <script>if(location.hash.length>50){var a=document.getElementById("app"),t=document.getElementById("dl-placeholder");if(a&&t)a.replaceChildren(t.content.cloneNode(true))}</script>
+    <script type="module" src="/file-assets/index.js"></script>
+
+    <p class="text-base text-center text-grey-black dark:text-white mt-10 max-w-[600px]">Send files securely with <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span> — no accounts, no tracking.</p>
+    <a href="javascript:void(0)" data-show-overlay="xftp-protocol" class="open-overlay-btn file-proto-link mt-3 block text-center">Learn more about XFTP protocol</a>
+  </div>
+</section>
+
+<section class="bg-primary-bg-light dark:bg-secondary-bg-dark py-[90px] px-5">
+  <div class="container flex flex-col items-center mx-auto text-center">
+    <h2 class="text-[35px] leading-[45px] md:text-[45px] md:leading-[55px] text-grey-black dark:text-white font-bold mb-5">
+      Get SimpleX Chat — the most secure &amp; private messenger
+    </h2>
+    <p class="text-base text-grey-black dark:text-white mb-14 max-w-[600px]">
+      The file transfer you just used uses the same data routing protocol as SimpleX Chat. The app has end-to-end encrypted messaging, voice and video calls, groups, and sending files. No account. No phone. No email. No user profile IDs.
+    </p>
+    <div class="flex items-center justify-center gap-4 flex-wrap">
+      <a href="https://apps.apple.com/us/app/simplex-chat/id1605771084" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apple_store.svg"></a>
+      <a href="https://play.google.com/store/apps/details?id=chat.simplex.app" target="_blank"><img class="h-[40px] w-auto" src="/img/new/google_play.svg"></a>
+      <a href="/zh_Hans/fdroid"><img class="h-[40px] w-auto" src="/img/new/f_droid.svg"></a>
+      <a href="https://testflight.apple.com/join/DWuT2LQu" target="_blank"><img class="h-[40px] w-auto" src="/img/new/testflight.png"></a>
+      <a href="https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-aarch64.apk" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apk_icon.png"></a>
+    </div>
+  </div>
+</section>
+
+
+  
+    
+    <div id="xftp-protocol" data-scroll-to="" class="overlay hidden fixed top-0 left-0 bottom-0 right-0 before:absolute before:w-full before:h-full bg-transparent before:bg-secondary-bg-light dark:before:bg-primary-bg-dark before:opacity-90 items-center justify-center p-3 md:p-10 z-[10000]">
+        <div class="overlay-card w-full md:w-fit md:max-w-[1276px] bg-white dark:bg-card-bg-dark opacity-100 h-full md:h-fit md:max-h-[660px] z-[10001] rounded-md shadow-[0px_3px_12px_rgba(0,0,0,0.2)] p-6 py-10 sm:p-14 overflow-auto scale-100">
+            <h1 class="text-3xl font-bold text-active-blue mb-6 ">XFTP protocol: the most secure file transfer</h1>
+            <div class="flex flex-col-reverse lg:flex-row gap-10 justify-between">
+                
+                    <div class="lg:max-w-[448px]">
+                        <div class="text-grey-black dark:text-white flex flex-col gap-6 text-base">
+                            <div>
+  <h3 class="font-bold text-lg mb-2">No account required</h3>
+  <p>Each file fragment uses a new random key. Data routers have no "users" or "files" - they transfer encrypted file fragments of fixed sizes.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Triple-encrypted in your browser</h3>
+  <p>File encryption key is present only in the URL hash fragment - your browser never sends it to a server. There are 3 encryption layers: TLS transport, per-recipient encryption (unique ephemeral key per transfer), and file <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span>.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Independent data routers</h3>
+  <p>When file is split to fragments, it is sent via network routers operated by independent parties. No operator can see the actual file size or name. Even if a router is compromised, it can only see encrypted fragments of fixed size. File fragments are cached by network routers for approximately 48 hours.</p>
+</div>
+<p class="mt-4">
+  <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/xftp.md" target="_blank" rel="noopener" class="text-active-blue hover:underline">
+    Read the XFTP protocol specification →
+  </a>
+</p>
+
+                        </div>
+                    </div>
+                
+
+                
+                    <div class="max-w-[448px]">
+                        <div class="flex items-center justify-center">
+                            <img class="w-full max-w-[448px] min-w-[300px] dark:hidden" src="/img/new/xftp-protocol.svg" alt="">
+                            <img class="w-full max-w-[448px] min-w-[300px] hidden dark:block" src="/img/new/xftp-protocol-dark.svg" alt="">
+                        </div>
+                    </div>
+                
+            </div>
+
+            <svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+                <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z"></path>
+            </svg>
+        </div>
+    </div>
+
+
+
+<script>
+  window.__XFTP_I18N__ = {
+    "title": "SimpleX File Transfer",
+    "dropZone": "Drag & drop a file here",
+    "dropZoneHint": "or",
+    "chooseFile": "Choose file",
+    "maxSizeHint": "Max 100 MB - <a href=\"#join-simplex\">SimpleX Chat app</a> supports files up to 1 GB",
+    "encrypting": "Encrypting…",
+    "uploading": "Uploading…",
+    "cancel": "Cancel",
+    "fileUploaded": "File uploaded",
+    "copy": "Copy",
+    "copied": "Copied!",
+    "share": "Share",
+    "expiryHint": "Files are typically available for 48 hours.",
+    "securityNote1": "Your file was encrypted in the browser - data routers never see file contents, name or size.",
+    "securityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "securityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "retry": "Retry",
+    "downloading": "Downloading…",
+    "decrypting": "Decrypting…",
+    "downloadComplete": "Download complete",
+    "download": "Download",
+    "fileTooLarge": "File too large (%size%). Maximum is 100 MB. The <a href=\"#join-simplex\">SimpleX app</a> supports files up to 1 GB.",
+    "fileEmpty": "File is empty.",
+    "invalidLink": "Invalid or corrupted link.",
+    "initError": "Failed to initialize: %error%",
+    "fileAvailable": "File available (~%size%)",
+    "dlSecurityNote1": "This file is encrypted - data routers never see file contents, name or size.",
+    "dlSecurityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "dlSecurityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "workersRequired": "Web Workers required — update your browser"
+  }
+</script>
+
+<script>
+  // Intercept close for #xftp-protocol to add fade-out animation
+  document.getElementById('xftp-protocol')?.addEventListener('click', function(e) {
+    if (e.target.closest('.close-overlay-btn') || (e.target.closest('.overlay') && !e.target.closest('.overlay-card'))) {
+      e.stopPropagation();
+      var el = document.getElementById('xftp-protocol');
+      el.classList.add('overlay-closing');
+      el.addEventListener('animationend', function handler() {
+        el.removeEventListener('animationend', handler);
+        el.classList.remove('flex', 'overlay-closing');
+        el.classList.add('hidden');
+        document.body.classList.remove('lock-scroll');
+        history.replaceState(null, null, ' ');
+      });
+    }
+  }, true);
+
+  // Hide scroll fade gradient when text bottom is visible (works with column-reverse)
+  var scrollArea = document.querySelector('#xftp-protocol .overlay-card > .flex');
+  if (scrollArea) {
+    var textCol = scrollArea.querySelector(':scope > div:first-child > div');
+    function checkScrollBottom() {
+      if (!textCol) return;
+      var scrollRect = scrollArea.getBoundingClientRect();
+      if (scrollRect.height === 0) return; // not laid out yet
+      var textBottom = textCol.getBoundingClientRect().bottom;
+      document.getElementById('xftp-protocol').classList.toggle('scrolled-bottom', textBottom <= scrollRect.bottom + 10);
+    }
+    scrollArea.addEventListener('scroll', checkScrollBottom);
+    new MutationObserver(function() {
+      if (!document.getElementById('xftp-protocol').classList.contains('hidden')) {
+        requestAnimationFrame(checkScrollBottom);
+      }
+    }).observe(document.getElementById('xftp-protocol'), { attributes: true, attributeFilter: ['class'] });
+  }
+</script>
+
+<div id="address-portability" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Address portability</h1><div class="overlay-content"><p>Similarly to <a href="https://en.wikipedia.org/wiki/Local_number_portability">phone number portability</a> (the ability of the customer to transfer the service to another provider without changing the number), the address portability means the ability of a communication service customer to change the service provider without changing the service address. Many <a href="#federated-network">federated networks</a> support SRV records to provide address portability, but allowing service users to set up their own domains for the addresses is not as commonly supported by the available server and client software as for email.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="federated-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Federated network</h1><div class="overlay-content"><p>Federated network is provided by several entities that agree upon the standards and operate the network collectively. This allows the users to choose their provider, that will hold their account, their messaging history and contacts, and communicate with other providers' servers on behalf of the user. The examples are email, XMPP, Matrix and Mastodon.</p><p>The advantage of that design is that there is no single organization that all users depend on, and the standards are more difficult to change, unless it benefits all users. There are several disadvantages: 1) the innovation is slower, 2) each user account still depends on a single organization, and in most cases can't move to another provider without changing their network address – there is no <a href="#address-portability">address portability</a>, 3) the security and privacy are inevitably worse than with the centralized networks.</p><p><a href="https://en.wikipedia.org/wiki/Federation_(information_technology)">Federation on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="anonymous-credentials" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Anonymous credentials</h1><div class="overlay-content"><p>The credential that allows proving something, e.g. the right to access some resource, without identifying the user. This credential can either be generated by a trusted party or by the user themselves and provided together with the request to create the resource. The first approach creates some centralized dependency in most cases. The second approach does not require any trust - this is used in SimpleX network to authorize access to the messaging queues.</p><p><a href="https://en.wikipedia.org/wiki/Digital_credential">Digital credential on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="blockchain" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Blockchain</h1><div class="overlay-content"><p>In a wide sense, blockchain means a sequence of blocks of data, where each block contains a cryptographic hash of the previous block, thus providing integrity to the whole chain. Blockchains are used in many communication and information storage systems to provide integrity and immutability of the data. For example, BluRay disks use blockchain. SimpleX messaging queues also use blockchain - each message includes the hash of the previous message, to ensure the integrity – if any message is modified it will be detected by the recipient when the next message is received. Blockchains are a subset of <a href="#merkle-directed-acyclic-graph">Merkle directed acyclic graphs</a>.</p><p>In a more narrow sense, particularly in media, blockchain is used to refer specifically to distributed ledger, where each record also includes the hash of the previous record, but the blocks have to be agreed by the participating peers using some <a href="https://en.wikipedia.org/wiki/Consensus_(computer_science)">consensus protocol</a>.</p><p><a href="https://en.wikipedia.org/wiki/Blockchain">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="merkle-directed-acyclic-graph" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Merkle directed acyclic graph</h1><div class="overlay-content"><p>Also known as Merkle DAG, a data structure based on a general graph structure where node contains the cryptographic hashes of the previous nodes that point to it. Merkle trees are a subset of Merkle DAGs - in this case each leaf contains a cryptographic hash of the parent.</p><p>This structure by design allows to verify the integrity of the whole structure by computing its hashes and comparing with the hashes included in the nodes, in the same way as with <a href="#blockchain">blockchain</a>.</p><p>The motivation to use DAG in distributed environments instead of a simpler linear blockchain is to allow concurrent additions, when there is no requirement for a single order of added items. Merkle DAG is used, for example, in <a href="https://en.wikipedia.org/wiki/InterPlanetary_File_System">IPFS</a> and will be used in decentralized SimpleX groups.</p><p><a href="https://en.wikipedia.org/wiki/Merkle_tree">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="break-in-recovery" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Break-in recovery</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="double-ratchet-algorithm" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Double ratchet algorithm</h1><div class="overlay-content"><p>It is used by two parties to exchange <a href="#end-to-end-encryption">end-to-end encrypted</a> messages. The parties will use some <a href="#key-agreement-protocol">key agreement protocol</a> to agree on the initial shared secret key.</p><p>Double Ratchet algorithm provides <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>. It is <a href="https://signal.org/docs/specifications/doubleratchet">designed by Signal</a>, and used in SimpleX Chat and many other secure messengers. Most experts consider it the state-of-the-art encryption protocol in message encryption.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="centralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Centralized network</h1><div class="overlay-content"><p>Centralized networks are provided or controlled by a single entity. The examples are Threema, Signal, WhatsApp and Telegram. The advantage of that design is that the provider can innovate faster, and has a centralized approach to security. But the disadvantage is that the provider can change or discontinue the service, and leak, sell or disclose in some other way all users' data, including who they are connected with.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="content-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Content padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="decentralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Decentralized network</h1><div class="overlay-content"><p>Decentralized network is often used to mean "the network based on decentralized blockchain". In its original meaning, decentralized network means that there is no central authority or any other point of centralization in the network, other than network protocols specification. The advantage of decentralized networks is that they are resilient to censorship and to the provider going out of business. The disadvantage is that they are often slower to innovate, and the security may be worse than with the centralized network.</p><p>The examples of decentralized networks are email, web, DNS, XMPP, Matrix, BitTorrent, etc. All these examples have a shared global application-level address space. Cryptocurrency blockchains not only have a shared address space, but also a shared state, so they are more centralized than email. Tor network also has a shared global address space, but also a central authority. SimpleX network does not have a shared application-level address space (it relies on the shared transport-level addresses - SMP relay hostnames or IP addresses), and it does not have any central authority or any shared state.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="defense-in-depth" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Defense in depth</h1><div class="overlay-content"><p>Originally, it is a military strategy that seeks to delay rather than prevent the advance of an attacker, buying time and causing additional casualties by yielding space.</p><p>In information security, defense in depth represents the use of multiple computer security techniques to help mitigate the risk of one component of the defense being compromised or circumvented. An example could be anti-virus software installed on individual workstations when there is already virus protection on the firewalls and servers within the same environment.</p><p>SimpleX network applies defense in depth approach to security by having multiple layers for the communication security and privacy:</p><ul>
+<li>double ratchet algorithm for <a href="#end-to-end-encryption">end-to-end encryption</a> with <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>,</li>
+<li>additional layer of end-to-end encryption for each messaging queue and another encryption layer of encryption from the server to the recipient inside TLS to prevent correlation by ciphertext,</li>
+<li>TLS with only strong ciphers allowed,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-server connection via server offline certificate verification,</li>
+<li>mitigation of replay attacks via signing over transport channel binding,</li>
+<li>multiple layers of <a href="#message-padding">message padding</a> to reduce efficiency of traffic analysis,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-client out-of-band channel when sending the invitation,</li>
+<li>rotation of delivery queues to reduce efficiency of traffic analysis,</li>
+<li>etc.</li>
+</ul><p><a href="https://en.wikipedia.org/wiki/Defence_in_depth">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="end-to-end-encryption" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">End-to-end encryption</h1><div class="overlay-content"><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><p>End-to-end encryption requires agreeing cryptographic keys between the sender and the recipient in a way that no eavesdroppers can access the agreed keys. See <a href="#key-agreement-protocol">key agreement protocol</a>. This key exchange can be compromised via <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>, particularly if key exchange happens via the same communication provider and no out-of-band channel is used to verify key exchange.</p><p><a href="https://en.wikipedia.org/wiki/End-to-end_encryption">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-compromise-security" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-compromise security</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="man-in-the-middle-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Man-in-the-middle attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="message-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Message padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="key-agreement-protocol" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key agreement protocol</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="tooltip-end-to-end-encryption" class="glossary-tooltip"><div class="tooltip-content"><h4 class="tooltip-title">End-to-end encryption</h4><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><button class="read-more-btn open-overlay-btn" data-show-overlay="end-to-end-encryption">Read more</button></div></div><div id="key-exchange" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key exchange</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="mitm-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">MITM attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="non-repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Non-repudiation</h1><div class="overlay-content">Non-repudiation</div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="onion-routing" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Onion routing</h1><div class="overlay-content"><p>A technique for anonymous communication over a computer network that uses multiple layers of message encryption, analogous to the layers of an onion. The encrypted data is transmitted through a series of network nodes called "onion routers," each of which "peels" away a single layer, revealing the data's next destination. The sender remains anonymous because each intermediary knows only the location of the immediately preceding and following nodes.</p><p>The most widely used onion network is <a href="https://en.wikipedia.org/wiki/Tor_(network)">Tor</a>.</p><p>Some elements of SimpleX network use similar ideas in their design - different addresses for the same resource used by different parties, and additional encryption layers. Currently though, SimpleX messaging protocol does not protect sender network address, as the relay server is chosen by the recipient. The delivery relays chosen by sender that are planned for the future would make SimpleX design closer to onion routing.</p><p><a href="https://en.wikipedia.org/wiki/Onion_routing">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="overlay-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Overlay network</h1><div class="overlay-content"><p>Nodes in the overlay network can be thought of as being connected by virtual or logical links, each of which corresponds to a path, perhaps through many physical links, in the underlying network. Tor, for example, is an overlay network on top of IP network, which in its turn is also an overlay network over some underlying physical network.</p><p>SimpleX Clients also form a network using SMP relays and IP or some other overlay network (e.g., Tor), to communicate with each other. SMP relays, on another hand, do not form a network.</p><p><a href="https://en.wikipedia.org/wiki/Overlay_network">Wikipedia</a></p><h1>Non-repudiation</h1><p>The property of the cryptographic or communication system that allows the recipient of the message to prove to any third party that the sender identified by some cryptographic key sent the message. It is the opposite to <a href="#repudiation">repudiation</a>. While in some context non-repudiation may be desirable (e.g., for contractually binding messages), in the context of private communications it may be undesirable.</p><p><a href="https://en.wikipedia.org/wiki/Non-repudiation">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Repudiation</h1><div class="overlay-content"><p>The property of the cryptographic or communication system that allows the sender of the message to plausibly deny having sent the message, because while the recipient can verify that the message was sent by the sender, they cannot prove it to any third party - the recipient has a technical ability to forge the same encrypted message. This is an important quality of private communications, as it allows to have the conversation that can later be denied, similarly to having a private face-to-face conversation.</p><p>See also <a href="#non-repudiation">non-repudiation</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="pairwise-pseudonymous-identifier" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Pairwise pseudonymous identifier</h1><div class="overlay-content"><p>Generalizing <a href="https://csrc.nist.gov/glossary/term/pairwise_pseudonymous_identifier">the definition</a> from NIST Digital Identity Guidelines, it is an opaque unguessable identifier generated by a service used to access a resource by only one party.</p><p>In the context of SimpleX network, these are the identifiers generated by SMP relays to access anonymous messaging queues, with a separate identifier (and access credential) for each accessing party: recipient, sender and and optional notifications subscriber. The same approach is used by XFTP relays to access file chunks, with separate identifiers (and access credentials) for sender and each recipient.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Peer-to-peer</h1><div class="overlay-content"><p>Peer-to-peer (P2P) is the network architecture when participants have equal rights and communicate directly via a general purpose transport or overlay network. Unlike client-server architecture, all peers in a P2P network both provide and consume the resources. In the context of messaging, P2P architecture usually means that the messages are sent between peers, without user accounts or messages being stored on any servers. Examples are Tox, Briar, Cwtch and many others.</p><p>The advantage is that the participants do not depend on any servers. There are <a href="./SIMPLEX.md#comparison-with-p2p9-messaging-protocols">multiple downsides</a> to that architecture, such as no asynchronous message delivery, the need for network-wide peer addresses, possibility of network-wide attacks, that are usually mitigated only by using a centralized authority. These disadvantages are avoided with <a href="#proxied-peer-to-peer">proxied P2P</a> architecture.</p><p><a href="https://en.wikipedia.org/wiki/Peer-to-peer">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="proxied-peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Proxied peer-to-peer</h1><div class="overlay-content"><p>Network topology of the communication system when peers communicate via proxies that do not form the network themselves. Such design is used in Pond, that has a fixed home server for each user, and in SimpleX, that uses multiple relays providing temporary connections.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="perfect-forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Perfect forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-cryptography" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum cryptography</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-hybrid-crypto" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum hybrid crypto</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="recovery-from-compromise" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Recovery from compromise</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="user-identity" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">User identity</h1><div class="overlay-content"><p>In a communication system it refers to anything that uniquely identifies the users to the network. Depending on the communication network, it can be a phone number, email address, username, public key or a random opaque identifier. Most messaging networks rely on some form of user identity. SimpleX appears to be the only messaging network that does not rely on any kind of user identity - see <a href="https://en.wikipedia.org/wiki/Comparison_of_instant_messaging_protocols">this comparison</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div></body></html>
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+                            SimpleX bots API
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+                            </svg>
+                        </a>
+                    </div>
+
+                    <div class="flex gap-2 justify-center">
+                        <a href="https://github.com/simplex-chat" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 41 41" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path d="M20.2907 0.926758C9.24635 0.926758 0.290527 10.1075 0.290527 21.4331C0.290527 30.4933 6.02118 38.18 13.9679 40.8915C14.9674 41.0813 15.3344 40.4467 15.3344 39.905C15.3344 39.4161 15.3158 37.8007 15.3072 36.0872C9.74314 37.3277 8.56906 33.6677 8.56906 33.6677C7.65927 31.2975 6.3484 30.6672 6.3484 30.6672C4.53379 29.3945 6.48519 29.4206 6.48519 29.4206C8.49355 29.5653 9.55105 31.5338 9.55105 31.5338C11.3349 34.6688 14.2298 33.7624 15.3711 33.2385C15.5506 31.9131 16.069 31.0085 16.6409 30.4964C12.1986 29.9779 7.52878 28.2195 7.52878 20.3621C7.52878 18.1232 8.31007 16.294 9.58947 14.8579C9.38181 14.3414 8.69723 12.2557 9.78322 9.43111C9.78322 9.43111 11.4627 8.87998 15.2847 11.5331C16.8801 11.0787 18.591 10.8509 20.2907 10.8431C21.9904 10.8509 23.7027 11.0787 25.301 11.5331C29.1183 8.87998 30.7955 9.43111 30.7955 9.43111C31.8842 12.2557 31.1992 14.3414 30.9916 14.8579C32.274 16.294 33.05 18.1232 33.05 20.3621C33.05 28.2382 28.3712 29.9724 23.9176
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+                            </svg>
+                        </a>
+                        <a href="https://twitter.com/simplexchat" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 41 41" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M20.4575 40.9268C31.5032 40.9268 40.4575 31.9725 40.4575 20.9268C40.4575 9.88106 31.5032 0.926758 20.4575 0.926758C9.41182 0.926758 0.45752 9.88106 0.45752 20.9268C0.45752 31.9725 9.41182 40.9268 20.4575 40.9268ZM29.916 16.7766C29.916 23.1157 25.014 30.4265 16.0519 30.4265V30.423C13.4038 30.4265 10.8115 29.6795 8.58252 28.2719C8.96846 28.3174 9.35558 28.3397 9.74271 28.3409C11.9372 28.3432 14.0688 27.6182 15.7942 26.283C13.7101 26.2444 11.8802 24.9055 11.2425 22.9507C11.9716 23.0898 12.7245 23.0619 13.4418 22.869C11.1689 22.4165 9.53371 20.4504 9.53252 18.1671V18.1062C10.2106 18.478 10.9694 18.6835 11.7448 18.7057C9.60377 17.2981 8.94233 14.4948 10.2355 12.3026C12.7103 15.2992 16.3606 17.1207 20.2782 17.3147C19.8851 15.6487 20.4231 13.902 21.6878 12.7306C23.6507 10.9137 26.737 11.0073 28.5824 12.9387C29.6737 12.7271 30.7199 12.3327 31.677 11.7738C31.3125 12.8857 30.5513 13.828 29.5348 14.4277C30.5002
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+                            </svg>
+                        </a>
+                        <a href="https://www.linkedin.com/company/simplex-chat/" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 41 41" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M20.0408 0.926758C8.9951 0.926758 0.0407715 9.88109 0.0407715 20.9268C0.0407715 31.9724 8.9951 40.9268 20.0408 40.9268C31.0864 40.9268 40.0408 31.9724 40.0408 20.9268C40.0408 9.88109 31.0864 0.926758 20.0408 0.926758ZM9.6421 17.4916H14.1745V31.1098H9.6421V17.4916ZM14.4731 13.279C14.4437 11.9438 13.4889 10.9268 11.9383 10.9268C10.3878 10.9268 9.3741 11.9438 9.3741 13.279C9.3741 14.5866 10.3579 15.6328 11.8794 15.6328H11.9084C13.4889 15.6328 14.4731 14.5866 14.4731 13.279ZM25.3017 17.1718C28.2843 17.1718 30.5203 19.1187 30.5203 23.3015L30.5201 31.1098H25.9879V23.824C25.9879 21.994 25.3319 20.7453 23.6912 20.7453C22.439 20.7453 21.6932 21.5871 21.3656 22.4003C21.2458 22.6916 21.2164 23.0976 21.2164 23.5046V31.1101H16.6834C16.6834 31.1101 16.7431 18.7698 16.6834 17.492H21.2164V19.4208C21.8179 18.4936 22.8953 17.1718 25.3017 17.1718Z" />
+                            </svg>
+                        </a>
+                        <a href="https://simplex.chat/feed.rss" target="_blank">
+                            <svg class="fill-primary-light dark:fill-primary-dark" width="32" height="32" viewBox="0 0 512 512" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                <path fill-rule="evenodd" clip-rule="evenodd" d="M256 512C397.385 512 512 397.385 512 256C512 114.615 397.385 0 256 0C114.615 0 0 114.615 0 256C0 397.385 114.615 512 256 512ZM132.791 157.572C215.586 161.137 279.503 196.841 323.612 267.517C344.138 302.436 354.186 339.959 354.57 380.122H406.814C409.639 231.301 280.977 103.1 132.791 106.05V157.572ZM309.994 343.843C311.593 356.035 313.096 367.877 314.65 380.116H261.161C260.496 344.968 248.303 314.452 223.472 289.485C198.613 264.491 168.097 252.282 132.755 251.38V199.743C198.318 196.346 288.694 244.344 309.994 343.843ZM132.766 336.706C129.293 354.261 137.796 370.323 154.848 378.004L155.461 378.242C156.267 378.558 156.912 378.81 157.577 378.985C173.012 383.066 186.298 379.318 196.604 367.168C206.463 355.544 208.397 342.145 201.87 328.354C195.205 314.271 183.419 307.215 167.834 307.356C151.188 307.509 135.971 320.504 132.766 336.706Z" />
+                            </svg>
+                        </a>
+                    </div>
+                </div>
+            </article>
+        </div>
+        <a href="#" class="text-grey-black dark:text-white text-[16px] text-center lg:ltr:text-left lg:rtl:text-right font-medium leading-[28px] tracking-[0.01em] block mt-[60px]">© 2020-2025 SimpleX Chat | 开源项目</a>
+    </div>
+</section>
+
+
+        <script src="/js/swiper-bundle.min.js"></script>
+        <script src="/js/script.js"></script>
+    </body>
+</html>
diff --git a/zh_Hans/index.html b/zh_Hans/index.html
index d85595459f..2d98c3d7dc 100644
--- a/zh_Hans/index.html
+++ b/zh_Hans/index.html
@@ -153,6 +153,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/zh_Hans/invitation/index.html b/zh_Hans/invitation/index.html
index 5a34305b28..1d028a2101 100644
--- a/zh_Hans/invitation/index.html
+++ b/zh_Hans/invitation/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/zh_Hans/messaging/index.html b/zh_Hans/messaging/index.html
index f065287a6d..b7f69801ff 100644
--- a/zh_Hans/messaging/index.html
+++ b/zh_Hans/messaging/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/zh_Hans/old/index.html b/zh_Hans/old/index.html
index c178c2ea05..7ead57ac8d 100644
--- a/zh_Hans/old/index.html
+++ b/zh_Hans/old/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/zh_Hans/why/index.html b/zh_Hans/why/index.html
index 2b26ddfb9b..f17178c873 100644
--- a/zh_Hans/why/index.html
+++ b/zh_Hans/why/index.html
@@ -133,6 +133,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/zh_Hant/contact/index.html b/zh_Hant/contact/index.html
index 47c3e39613..87e0340c2c 100644
--- a/zh_Hant/contact/index.html
+++ b/zh_Hant/contact/index.html
@@ -129,6 +129,8 @@
                 </a>
             </li>
 
+            
+
             <hr>
 
             <li class="nav-link">
diff --git a/zh_Hant/fdroid/index.html b/zh_Hant/fdroid/index.html
index 8d58d832d1..67ef94b25a 100644
--- a/zh_Hant/fdroid/index.html
+++ b/zh_Hant/fdroid/index.html
@@ -129,6 +129,8 @@
                 </a>
             </li>
 
+            
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diff --git a/zh_Hant/file/index.html b/zh_Hant/file/index.html
new file mode 100644
index 0000000000..c348f2e99d
--- /dev/null
+++ b/zh_Hant/file/index.html
@@ -0,0 +1,884 @@
+<!DOCTYPE html>
+<html lang="zh_Hant"
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
+    
+        
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+        
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+    
+        
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+    >
+    <head>
+        <meta charset="UTF-8">
+        <meta http-equiv="X-UA-Compatible" content="IE=edge">
+        <meta name="viewport" content="width=device-width, initial-scale=1.0">
+        <title>SimpleX File Transfer</title>
+        <meta name="description" content="Send files securely with end-to-end encryption"/>
+        <meta name="Content-Type" content="text/html;charset=utf-8"/>
+        
+        <meta http-equiv="onion-location" content="http://isdb4l77sjqoy2qq7ipum6x3at6hyn3jmxfx4zdhc72ufbmuq4ilwkqd.onion/" />
+        <meta property="og:url" content="https://simplex.chat/" />
+        
+        <meta property="og:type" content="website"/>
+        <meta property="og:title" content="SimpleX File Transfer"/>
+        <meta property="og:description" content="Send files securely with end-to-end encryption"/>
+        <meta property="og:image" content="https://simplex.chat/img/share_simplex.jpg"/>
+        <meta name="twitter:card" content="summary"/>
+        <link rel="icon" type="image/png" sizes="96x96" href="/img/favicon.ico"/>
+
+        <link rel="stylesheet" href="/css/swiper-bundle.min.css">
+        <link rel="stylesheet" href="/css/blog.css">
+        <link href="/css/tailwind.css" rel="stylesheet"/>
+        <link rel="stylesheet" href="/css/style.css">
+        <link rel="stylesheet" href="/css/design3-nav.css">
+        <script async defer src="https://buttons.github.io/buttons.js"></script>
+        <script src="/js/flag-anchor.js"></script>
+        
+    </head>
+    <body class="bg-[#F3FAFF] dark:bg-[#000832]">
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+    
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+    
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+    
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+    
+
+    
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+    
+
+
+<header id="navbar">
+    <a href="/zh_Hant" class="logo logo-light ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-light.png" alt="logo"></a>
+    <a href="/zh_Hant" class="logo logo-dark ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-dark.png" alt="logo"></a>
+
+    <nav id="menu">
+        <ul>
+            <li class="nav-link ">
+                <a href="/zh_Hant">
+                    <span class="nav-link-text">主頁</span>
+                </a>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/directory/">
+                    <span class="nav-link-text">Directory</span>
+                </a>
+            </li>
+
+            
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">指南</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    
+                        <li><a href="/docs/guide/readme.html" class="">Quick start</a></li>
+                    
+                        <li><a href="/docs/guide/send-messages.html" class="">Sending messages</a></li>
+                    
+                        <li><a href="/docs/guide/secret-groups.html" class="">Secret groups</a></li>
+                    
+                        <li><a href="/docs/guide/chat-profiles.html" class="">Chat profiles</a></li>
+                    
+                        <li><a href="/docs/guide/managing-data.html" class="">Managing data</a></li>
+                    
+                        <li><a href="/docs/guide/audio-video-calls.html" class="">音視訊通話</a></li>
+                    
+                        <li><a href="/docs/guide/privacy-security.html" class="">Privacy & security</a></li>
+                    
+                        <li><a href="/docs/guide/app-settings.html" class="">應用程式設定</a></li>
+                    
+                        <li><a href="/docs/guide/making-connections.html" class="">Making connections</a></li>
+                    
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link">
+                <a href="javascript:void(0);">
+                    <span class="">參考</span>
+                    <span href="" id="btn-mobile">
+                        <svg viewBox="0 0 10 6" xmlns="http://www.w3.org/2000/svg">
+                            <path fill-rule="evenodd" clip-rule="evenodd" d="M1.50447 0.902966C1.21571 0.627397 0.747525 0.627397 0.458761 0.902966C0.169996 1.17853 0.169996 1.62532 0.458761 1.90089L4.21933 5.48961C4.25543 5.52406 4.29433 5.5542 4.33533 5.58003C4.62234 5.76088 5.01237 5.73074 5.26504 5.48961L9.02561 1.90089C9.31438 1.62532 9.31438 1.17853 9.02561 0.902966C8.73685 0.627397 8.26867 0.627397 7.97991 0.902966L4.74219 3.99273L1.50447 0.902966Z"/>
+                        </svg>
+                    </span>
+                </a>
+
+                <ul class="sub-menu">
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md"
+                        target="_blank">Whitepaper
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/privacy">隱私策略</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/simplex-messaging.md"
+                        target="_blank">SMP 協定
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/protocol/simplex-chat.html">聊天協定</a></li>
+                    <li><a href="/docs/glossary.html">詞彙表</a></li>
+
+                    <hr>
+
+                    
+                        <li><a href="/docs/simplex.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX 網路</a></li>
+                    
+                        <li><a href="/docs/business.html" class=" lg:px-[20px] inline-block whitespace-nowrap">在商業中使用SimpleX</a></li>
+                    
+                        <li><a href="/docs/directory.html" class=" lg:px-[20px] inline-block whitespace-nowrap">SimpleX通訊錄服務</a></li>
+                    
+                        <li><a href="/docs/android.html" class=" lg:px-[20px] inline-block whitespace-nowrap">訪問Android檔案</a></li>
+                    
+                        <li><a href="/docs/server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Host SMP Server</a></li>
+                    
+                        <li><a href="/docs/xftp-server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Host XFTP Server</a></li>
+                    
+                        <li><a href="/docs/webrtc.html" class=" lg:px-[20px] inline-block whitespace-nowrap">WebRTC伺服器</a></li>
+                    
+                        <li><a href="/downloads/" class=" lg:px-[20px] inline-block whitespace-nowrap">下載</a></li>
+                    
+                        <li><a href="/reproduce/" class=" lg:px-[20px] inline-block whitespace-nowrap">Verify & reproduce builds</a></li>
+                    
+                        <li><a href="/transparency/" class=" lg:px-[20px] inline-block whitespace-nowrap">Transparency</a></li>
+                    
+                        <li><a href="/security/" class=" lg:px-[20px] inline-block whitespace-nowrap">安全性</a></li>
+                    
+                        <li><a href="/faq/" class=" lg:px-[20px] inline-block whitespace-nowrap">常見問題</a></li>
+                    
+
+                    <hr>
+
+                    <li><a href="/docs/translations.html"
+                    >翻譯SimpleX
+                    </a></li>
+                    <li><a href="/docs/android.html"
+                    >訪問Android檔案
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/blob/stable/apps/simplex-bot-advanced/Main.hs"
+                        target="_blank">聊天機器人示例
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="https://github.com/simplex-chat/simplex-chat/tree/stable/packages/simplex-chat-client/typescript"
+                        target="_blank">TypeScript SDK
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                    <li><a href="/docs/cli.html">終端 CLI</a></li>
+                    <li><a href="https://github.com/simplex-chat/simplexmq"
+                        target="_blank">SimpleXMQ
+                        <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                    </a></li>
+                </ul>
+            </li>
+
+            <hr>
+
+            <li class="nav-link ">
+                <a href="/blog">
+                    <span class="nav-link-text">部落格</span>
+                </a>
+            </li>
+        </ul>
+    </nav>
+
+    <div class="right-links">
+        
+            <a class="box-btn token md:hidden" href="/donate">
+                捐助
+            </a>
+        
+        <button href="#" class="theme-switch-btn">
+            <svg class="sun" width="469" height="469" viewBox="0 0 469 469" fill="none" xmlns="http://www.w3.org/2000/svg">
+            <path d="M225.768 1.44594C220.301 3.84594 214.701 10.6459 213.768 15.9793C213.234 18.3793 213.101 31.7126 213.368 45.7126L213.768 71.1793L217.634 76.1126C226.701 88.1126 242.968 87.5793 252.301 75.0459C254.968 71.5793 255.101 69.5793 255.101 42.2459C255.101 14.9126 254.968 12.9126 252.301 9.44594C250.834 7.44594 248.034 4.51261 246.168 3.17928C241.768 -0.154057 231.101 -1.08739 225.768 1.44594Z"/>
+            <path d="M72.9687 65.3128C63.7687 71.5794 60.1687 81.4461 63.7687 91.1794C65.502 95.4461 98.702 129.446 104.035 132.379C106.035 133.446 110.569 134.246 114.035 134.246C126.035 134.246 134.435 125.846 134.435 113.846C134.435 110.379 133.635 105.846 132.569 103.846C129.635 98.5128 95.6353 65.3128 91.3687 63.5794C85.102 61.3128 77.902 61.9794 72.9687 65.3128Z"/>
+            <path d="M377.102 63.7128C373.102 65.3128 338.969 98.7794 336.302 103.846C335.236 105.846 334.436 110.379 334.436 113.846C334.436 125.846 342.836 134.246 354.836 134.246C358.302 134.246 362.836 133.446 364.836 132.379C370.169 129.446 403.369 95.4461 405.102 91.1794C408.702 81.4461 405.102 71.5794 395.902 65.3128C391.102 61.9794 383.102 61.3128 377.102 63.7128Z"/>
+            <path d="M211.635 108.246C185.635 113.179 163.502 125.046 144.302 144.112C117.902 170.512 104.968 203.579 106.835 240.246C109.768 297.712 149.102 344.912 205.902 359.179C218.568 362.379 250.302 362.379 262.968 359.179C310.435 347.312 345.768 312.646 358.702 265.046C362.435 251.446 362.835 219.446 359.368 205.712C347.368 158.112 312.302 122.379 265.235 110.112C251.768 106.512 225.502 105.579 211.635 108.246Z"/>
+            <path d="M12.4349 214.779C-0.498477 220.379 -4.09848 237.579 5.23486 248.246C11.2349 255.046 15.6349 255.846 45.3682 255.313C74.0349 254.913 75.1015 254.646 81.6349 245.713C85.9015 239.979 85.5015 228.113 80.8349 221.979C74.4349 213.713 71.2349 212.913 42.1682 212.913C23.7682 213.046 15.2349 213.579 12.4349 214.779Z"/>
+            <path d="M396.035 215.179C393.635 216.379 390.035 219.445 388.035 221.979C383.368 228.112 382.968 239.979 387.235 245.712C394.035 254.779 394.301 254.912 426.435 254.912C458.568 254.912 458.835 254.779 465.635 245.712C469.501 240.512 469.501 227.979 465.635 222.779C458.968 213.845 458.301 213.579 428.035 213.179C404.435 212.912 399.768 213.179 396.035 215.179Z"/>
+            <path d="M103.101 336.779C96.7013 340.779 65.368 373.179 63.768 377.313C57.368 394.513 74.168 411.313 91.368 404.913C95.6347 403.179 129.635 369.979 132.568 364.646C135.368 359.446 134.968 349.046 131.768 343.846C126.168 334.646 112.035 331.179 103.101 336.779Z"/>
+            <path d="M344.035 336.912C341.635 338.379 338.569 341.445 337.102 343.845C333.902 349.045 333.502 359.445 336.302 364.645C339.235 369.979 373.235 403.179 377.502 404.912C387.235 408.512 397.102 404.912 403.369 395.712C406.702 390.779 407.369 383.579 405.102 377.312C403.369 373.045 370.169 339.045 364.835 336.112C359.635 333.312 349.235 333.712 344.035 336.912Z"/>
+            <path d="M225.368 385.712C222.968 387.046 219.368 390.112 217.368 392.646L213.768 397.312V426.379C213.768 458.246 213.901 458.779 222.968 465.446C228.168 469.312 240.701 469.312 245.901 465.446C254.834 458.779 255.101 457.979 255.501 428.246C256.034 397.579 255.234 394.379 246.834 387.979C241.101 383.579 231.634 382.512 225.368 385.712Z"/>
+            </svg>
+
+            <svg class="moon" width="469" height="469" viewBox="5 5 20 23" xmlns="http://www.w3.org/2000/svg">
+                <path d="M10.895 7.574c0 7.55 5.179 13.67 11.567 13.67 1.588 0 3.101-0.38 4.479-1.063-1.695 4.46-5.996 7.636-11.051 7.636-6.533 0-11.83-5.297-11.83-11.83 0-4.82 2.888-8.959 7.023-10.803-0.116 0.778-0.188 1.573-0.188 2.39z"></path>
+            </svg>
+        </button>
+
+        
+
+        <button id="cross-btn" class="nav-toggle-btn">
+            <svg id="cross" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+            <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z" />
+        </svg>
+        </button>
+    </div>
+</header>
+<div id="mobile-header">
+    <a href="/zh_Hant" class="logo flex dark:hidden ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-light.svg" alt="" srcset=""></a>
+    <a href="/zh_Hant" class="logo hidden dark:flex ltr:mr-auto rtl:ml-auto"><img src="/img/new/logo-symbol-dark.svg" alt="" srcset=""></a>
+
+    <button id="hamburger" class="nav-toggle-btn">
+        <svg viewBox="0 0 100 80" width="36" height="36">
+            <rect width="100" height="15"></rect>
+            <rect y="30" width="100" height="15"></rect>
+            <rect y="60" width="100" height="15"></rect>
+        </svg>
+    </button>
+</div>
+
+
+<script>
+// switch theme
+const sunIcon = document.querySelector('.sun');
+const moonIcon = document.querySelector('.moon');
+
+const userTheme = localStorage.getItem('theme');
+const systemTheme = window.matchMedia('(prefers-color-scheme: dark)').matches;
+const prismThemeLink = document.getElementById('prism-theme')
+
+function iconToggle () {
+    sunIcon.classList.toggle('hidden');
+    moonIcon.classList.toggle('hidden');
+}
+
+function themeCheck() {
+    if (userTheme === 'dark' || (!userTheme && systemTheme)) {
+        document.documentElement.classList.add('dark');
+        moonIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+    }
+    else{
+        sunIcon.classList.add('hidden');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+    }
+}
+themeCheck();
+
+function themeSwitch () {
+    if (document.documentElement.classList.contains('dark')) {
+        document.documentElement.classList.remove('dark');
+        localStorage.setItem('theme', 'light');
+        if(prismThemeLink){
+            prismThemeLink.setAttribute('href','/css/prism-light.min.css')
+        }
+        iconToggle();
+    } else {
+        document.documentElement.classList.add('dark');
+        localStorage.setItem('theme', 'dark');
+        if (prismThemeLink) {
+            prismThemeLink.setAttribute('href','/css/prism-dark.min.css')
+        }
+        iconToggle();
+    }
+}
+
+const nav = document.querySelector('header#navbar');
+
+window.addEventListener('click',(e)=>{
+    if(e.target.closest('.nav-link')){
+        if(e.target.closest('.nav-link').classList.contains('active')){
+            e.target.closest('.nav-link').classList.remove('active');
+        }
+        else{
+            document.querySelectorAll('.nav-link').forEach(el => el.classList.remove('active'))
+            e.target.closest('.nav-link').classList.add('active');
+        }
+    }
+    else if(e.target.closest('.nav-toggle-btn')){
+        if(nav.classList.contains('open')){
+            nav.classList.remove('open');
+            document.getElementById('mobile-header').classList.remove('nav-open');
+            document.documentElement.classList.remove('lock-scroll');
+        }
+        else{
+            document.documentElement.classList.add('lock-scroll');
+            document.getElementById('mobile-header').classList.add('nav-open');
+            nav.classList.add('open');
+        }
+    }
+    else if(e.target.closest('.theme-switch-btn')){
+        themeSwitch();
+    }
+});
+</script>
+
+        <html><head><link rel="stylesheet" href="/file-assets/index.css">
+<style>
+  /* Reset website .card styles that conflict with xftp bundle */
+  #app .card { cursor: default; }
+  #app .card,
+  #app .card > div { transition: unset; height: auto; }
+  #app .card > div > * { opacity: unset; max-height: unset; transform: unset; transition: unset; }
+
+  /* Align xftp bundle with website design */
+  #app { font-family: inherit; color: #3F484B; max-width: 600px; width: 100%; margin: 0 auto; padding: 0; }
+  #app .card { background: transparent; box-shadow: none; padding: 0; border-radius: 0; }
+  #app .card > h1 { display: none; }
+  .dark #app h1 { color: #fff; }
+  #app .drop-zone { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; }
+  #app .drop-zone.drag-over { border-color: #0053D0; background: #DBEEFF; }
+  #app .btn { background: #0053D0; border-radius: 34px; padding: 12px 32px; font-size: .9rem; font-weight: 600; }
+  #app .btn:hover { background: #1661D1; }
+  #app .btn-secondary { background: #6b7280; border-radius: 34px; }
+  #app .hint { color: #6b7280; }
+  #app .link-row input { border-radius: 8px; border-color: #c5d3de; }
+  #app .security-note { background: #ffffff; border-radius: 12px; color: #3F484B; }
+  #app .security-note a { color: #0197FF; }
+  #app .success { color: #0053D0; }
+
+  .dark #app { color: #e5e7eb; }
+  .dark #app .card { background: transparent; box-shadow: none; }
+  .dark #app .drop-zone { border-color: #374151; }
+  .dark #app .drop-zone.drag-over { border-color: #70F0F9; background: #1B325C; }
+  .dark #app .btn { background: #70F0F9; color: #000832; }
+  .dark #app .btn:hover { background: #66D9E2; }
+  .dark #app .link-row input { border-color: #374151; background: #071C46; color: #e5e7eb; }
+  .dark #app .security-note { background: #0B2A59; color: #d1d5db; }
+  .dark #app .security-note a { color: #70F0F9; }
+  .dark #app .success { color: #70F0F9; }
+
+  #app #upload-error { border: 2px dashed #c5d3de; border-radius: 12px; padding: 40px 24px; text-align: center; }
+  .dark #app #upload-error { border-color: #374151; }
+
+  #app .stage > .btn { margin-top: 20px; }
+  #app .security-note { margin-top: 20px; }
+  #app .drop-zone .btn { margin: 10px 0 16px; }
+
+  /* Protocol overlay: image fixed, text scrolls natively */
+  /* Push popup below navbar at all widths */
+  #xftp-protocol { padding-top: 70px; }
+  #xftp-protocol .overlay-card {
+    display: flex;
+    flex-direction: column;
+    position: relative;
+    overflow: hidden;
+  }
+  @media (min-width: 768px) {
+    #xftp-protocol .overlay-card { max-height: min(660px, 100%); }
+  }
+  #xftp-protocol .overlay-card > h1 {
+    flex-shrink: 0;
+    padding-bottom: 16px;
+    margin-bottom: 0;
+    z-index: 1;
+  }
+  @media (min-width: 1024px) and (max-height: 750px) {
+    #xftp-protocol .overlay-card > h1 {
+      font-size: 22px;
+    }
+  }
+  /* .flex is the full-width scroll container */
+  #xftp-protocol .overlay-card > .flex {
+    flex: 1;
+    min-height: 0;
+    overflow-y: auto;
+    scrollbar-width: thin;
+    scrollbar-color: #c5d3de transparent;
+  }
+  .dark #xftp-protocol .overlay-card > .flex {
+    scrollbar-color: #374151 transparent;
+  }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar { width: 6px; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-track { background: transparent; }
+  #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #c5d3de; border-radius: 3px; }
+  .dark #xftp-protocol .overlay-card > .flex::-webkit-scrollbar-thumb { background: #374151; }
+  /* Desktop: text stays left, image fixed on right */
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card > .flex > div:first-child {
+      max-width: 50%;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child {
+      position: absolute;
+      right: 56px;
+      top: 0;
+      bottom: 0;
+      left: 55%;
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      pointer-events: none;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child > div {
+      height: 100%;
+      padding: 40px 0;
+      box-sizing: border-box;
+    }
+    #xftp-protocol .overlay-card > .flex > div:last-child img {
+      height: 100%;
+    }
+  }
+  #xftp-protocol .close-overlay-btn {
+    position: absolute;
+    top: 24px;
+    right: 24px;
+    cursor: pointer;
+    z-index: 3;
+    fill: #606C71;
+  }
+  .dark #xftp-protocol .close-overlay-btn { fill: #e5e7eb; }
+  /* Scroll fade: gradient over text area only, hidden at bottom */
+  #xftp-protocol .overlay-card::after {
+    content: '';
+    position: absolute;
+    bottom: 40px;
+    left: 24px;
+    right: 24px;
+    height: 48px;
+    background: linear-gradient(rgba(255,255,255,0), #fff);
+    pointer-events: none;
+    z-index: 2;
+    transition: opacity 0.2s;
+  }
+  .dark #xftp-protocol .overlay-card::after {
+    background: linear-gradient(rgba(7,28,70,0), #071C46);
+  }
+  @media (min-width: 640px) {
+    #xftp-protocol .overlay-card::after { bottom: 56px; left: 56px; right: 56px; }
+  }
+  @media (min-width: 1024px) and (min-height: 600px) {
+    #xftp-protocol .overlay-card::after { right: 55%; }
+  }
+  #xftp-protocol.scrolled-bottom .overlay-card::after { opacity: 0; }
+  #xftp-protocol .overlay-card.flex,
+  #xftp-protocol.flex .overlay-card { animation: overlaySlideIn 0.25s ease-out; }
+  @keyframes overlaySlideIn {
+    from { opacity: 0; transform: scale(0.95) translateY(10px); }
+    to { opacity: 1; transform: scale(1) translateY(0); }
+  }
+  #xftp-protocol.overlay-closing { animation: overlayFadeOut 0.2s ease-in forwards; }
+  #xftp-protocol.overlay-closing .overlay-card { animation: overlaySlideOut 0.2s ease-in forwards; }
+  @keyframes overlayFadeOut {
+    from { opacity: 1; }
+    to { opacity: 0; }
+  }
+  @keyframes overlaySlideOut {
+    from { opacity: 1; transform: scale(1) translateY(0); }
+    to { opacity: 0; transform: scale(0.95) translateY(10px); }
+  }
+
+  .file-proto-link {
+    font-size: 1.25rem;
+    font-weight: 600;
+    background: linear-gradient(90deg, #001aa7 0%, #0095e7 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+    text-decoration: none;
+  }
+  .dark .file-proto-link {
+    background: linear-gradient(90deg, #019bfe 0%, #64fdff 58%, #c8feff 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+  }
+
+</style>
+
+</head><body><section class="bg-secondary-bg-light dark:bg-primary-bg-dark py-10 mt-[66px] px-5">
+  <div class="container flex flex-col items-center mx-auto">
+    <noscript>
+      <p class="text-center text-grey-black dark:text-white py-10">
+        JavaScript is required for file transfer.
+      </p>
+    </noscript>
+    <h1 class="text-[38px] text-center font-bold text-active-blue mb-8">SimpleX File Transfer</h1>
+    <div id="app" data-xftp-app="" data-no-hashchange="" class="w-full">
+      <div class="card">
+        <div class="drop-zone">
+          <p>Drag &amp; drop a file here</p>
+          <p class="hint">or</p>
+          <span class="btn">Choose file</span>
+          <p class="hint">Max 100 MB - <a href="#join-simplex">SimpleX Chat app</a> supports files up to 1 GB</p>
+        </div>
+      </div>
+    </div>
+    <template id="dl-placeholder">
+      <div class="card">
+        <h1>SimpleX File Transfer</h1>
+        <div class="stage">
+          <p>File available</p>
+          <button class="btn">Download</button>
+          <div class="security-note">
+            <p>This file is encrypted - data routers never see file contents, name or size.</p>
+            <p>The encryption key is in the link’s hash fragment - it is never sent to any server.</p>
+            <p>For better security, use <a href="https://simplex.chat/download">SimpleX Chat</a> app.</p>
+          </div>
+        </div>
+      </div>
+    </template>
+    <script>if(location.hash.length>50){var a=document.getElementById("app"),t=document.getElementById("dl-placeholder");if(a&&t)a.replaceChildren(t.content.cloneNode(true))}</script>
+    <script type="module" src="/file-assets/index.js"></script>
+
+    <p class="text-base text-center text-grey-black dark:text-white mt-10 max-w-[600px]">Send files securely with <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span> — no accounts, no tracking.</p>
+    <a href="javascript:void(0)" data-show-overlay="xftp-protocol" class="open-overlay-btn file-proto-link mt-3 block text-center">Learn more about XFTP protocol</a>
+  </div>
+</section>
+
+<section class="bg-primary-bg-light dark:bg-secondary-bg-dark py-[90px] px-5">
+  <div class="container flex flex-col items-center mx-auto text-center">
+    <h2 class="text-[35px] leading-[45px] md:text-[45px] md:leading-[55px] text-grey-black dark:text-white font-bold mb-5">
+      Get SimpleX Chat — the most secure &amp; private messenger
+    </h2>
+    <p class="text-base text-grey-black dark:text-white mb-14 max-w-[600px]">
+      The file transfer you just used uses the same data routing protocol as SimpleX Chat. The app has end-to-end encrypted messaging, voice and video calls, groups, and sending files. No account. No phone. No email. No user profile IDs.
+    </p>
+    <div class="flex items-center justify-center gap-4 flex-wrap">
+      <a href="https://apps.apple.com/us/app/simplex-chat/id1605771084" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apple_store.svg"></a>
+      <a href="https://play.google.com/store/apps/details?id=chat.simplex.app" target="_blank"><img class="h-[40px] w-auto" src="/img/new/google_play.svg"></a>
+      <a href="/zh_Hant/fdroid"><img class="h-[40px] w-auto" src="/img/new/f_droid.svg"></a>
+      <a href="https://testflight.apple.com/join/DWuT2LQu" target="_blank"><img class="h-[40px] w-auto" src="/img/new/testflight.png"></a>
+      <a href="https://github.com/simplex-chat/simplex-chat/releases/latest/download/simplex-aarch64.apk" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apk_icon.png"></a>
+    </div>
+  </div>
+</section>
+
+
+  
+    
+    <div id="xftp-protocol" data-scroll-to="" class="overlay hidden fixed top-0 left-0 bottom-0 right-0 before:absolute before:w-full before:h-full bg-transparent before:bg-secondary-bg-light dark:before:bg-primary-bg-dark before:opacity-90 items-center justify-center p-3 md:p-10 z-[10000]">
+        <div class="overlay-card w-full md:w-fit md:max-w-[1276px] bg-white dark:bg-card-bg-dark opacity-100 h-full md:h-fit md:max-h-[660px] z-[10001] rounded-md shadow-[0px_3px_12px_rgba(0,0,0,0.2)] p-6 py-10 sm:p-14 overflow-auto scale-100">
+            <h1 class="text-3xl font-bold text-active-blue mb-6 ">XFTP protocol: the most secure file transfer</h1>
+            <div class="flex flex-col-reverse lg:flex-row gap-10 justify-between">
+                
+                    <div class="lg:max-w-[448px]">
+                        <div class="text-grey-black dark:text-white flex flex-col gap-6 text-base">
+                            <div>
+  <h3 class="font-bold text-lg mb-2">No account required</h3>
+  <p>Each file fragment uses a new random key. Data routers have no "users" or "files" - they transfer encrypted file fragments of fixed sizes.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Triple-encrypted in your browser</h3>
+  <p>File encryption key is present only in the URL hash fragment - your browser never sends it to a server. There are 3 encryption layers: TLS transport, per-recipient encryption (unique ephemeral key per transfer), and file <span data-glossary="tooltip-end-to-end-encryption" class="glossary-term">end-to-end encryption</span>.</p>
+</div>
+<div>
+  <h3 class="font-bold text-lg mb-2">Independent data routers</h3>
+  <p>When file is split to fragments, it is sent via network routers operated by independent parties. No operator can see the actual file size or name. Even if a router is compromised, it can only see encrypted fragments of fixed size. File fragments are cached by network routers for approximately 48 hours.</p>
+</div>
+<p class="mt-4">
+  <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/xftp.md" target="_blank" rel="noopener" class="text-active-blue hover:underline">
+    Read the XFTP protocol specification →
+  </a>
+</p>
+
+                        </div>
+                    </div>
+                
+
+                
+                    <div class="max-w-[448px]">
+                        <div class="flex items-center justify-center">
+                            <img class="w-full max-w-[448px] min-w-[300px] dark:hidden" src="/img/new/xftp-protocol.svg" alt="">
+                            <img class="w-full max-w-[448px] min-w-[300px] hidden dark:block" src="/img/new/xftp-protocol-dark.svg" alt="">
+                        </div>
+                    </div>
+                
+            </div>
+
+            <svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
+                <path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.839522 -0.070157 0.427909 -0.059127 0.18094 0.207531C-0.0660305 0.474191 -0.0552645 0.895911 0.205003 1.14894L5.70862 6.49833L0.20247 11.851C-0.0577975 12.104 -0.0685635 12.5257 0.178407 12.7924C0.306324 12.9306 0.477936 13 0.650181 13C0.811033 13 0.971873 12.9397 1.09726 12.817L6.65343 7.41639L11.9025 12.5186C12.0285 12.6406 12.1893 12.7015 12.3495 12.7015C12.5218 12.7015 12.6934 12.6321 12.8213 12.4939C13.0689 12.2273 13.0582 11.8062 12.7973 11.5525Z"></path>
+            </svg>
+        </div>
+    </div>
+
+
+
+<script>
+  window.__XFTP_I18N__ = {
+    "title": "SimpleX File Transfer",
+    "dropZone": "Drag & drop a file here",
+    "dropZoneHint": "or",
+    "chooseFile": "Choose file",
+    "maxSizeHint": "Max 100 MB - <a href=\"#join-simplex\">SimpleX Chat app</a> supports files up to 1 GB",
+    "encrypting": "Encrypting…",
+    "uploading": "Uploading…",
+    "cancel": "Cancel",
+    "fileUploaded": "File uploaded",
+    "copy": "Copy",
+    "copied": "Copied!",
+    "share": "Share",
+    "expiryHint": "Files are typically available for 48 hours.",
+    "securityNote1": "Your file was encrypted in the browser - data routers never see file contents, name or size.",
+    "securityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "securityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "retry": "Retry",
+    "downloading": "Downloading…",
+    "decrypting": "Decrypting…",
+    "downloadComplete": "Download complete",
+    "download": "Download",
+    "fileTooLarge": "File too large (%size%). Maximum is 100 MB. The <a href=\"#join-simplex\">SimpleX app</a> supports files up to 1 GB.",
+    "fileEmpty": "File is empty.",
+    "invalidLink": "Invalid or corrupted link.",
+    "initError": "Failed to initialize: %error%",
+    "fileAvailable": "File available (~%size%)",
+    "dlSecurityNote1": "This file is encrypted - data routers never see file contents, name or size.",
+    "dlSecurityNote2": "The encryption key is in the link’s hash fragment - it is never sent to any server.",
+    "dlSecurityNote3": "For better security, use <a href=\"https://simplex.chat/download\">SimpleX Chat</a> app.",
+    "workersRequired": "Web Workers required — update your browser"
+  }
+</script>
+
+<script>
+  // Intercept close for #xftp-protocol to add fade-out animation
+  document.getElementById('xftp-protocol')?.addEventListener('click', function(e) {
+    if (e.target.closest('.close-overlay-btn') || (e.target.closest('.overlay') && !e.target.closest('.overlay-card'))) {
+      e.stopPropagation();
+      var el = document.getElementById('xftp-protocol');
+      el.classList.add('overlay-closing');
+      el.addEventListener('animationend', function handler() {
+        el.removeEventListener('animationend', handler);
+        el.classList.remove('flex', 'overlay-closing');
+        el.classList.add('hidden');
+        document.body.classList.remove('lock-scroll');
+        history.replaceState(null, null, ' ');
+      });
+    }
+  }, true);
+
+  // Hide scroll fade gradient when text bottom is visible (works with column-reverse)
+  var scrollArea = document.querySelector('#xftp-protocol .overlay-card > .flex');
+  if (scrollArea) {
+    var textCol = scrollArea.querySelector(':scope > div:first-child > div');
+    function checkScrollBottom() {
+      if (!textCol) return;
+      var scrollRect = scrollArea.getBoundingClientRect();
+      if (scrollRect.height === 0) return; // not laid out yet
+      var textBottom = textCol.getBoundingClientRect().bottom;
+      document.getElementById('xftp-protocol').classList.toggle('scrolled-bottom', textBottom <= scrollRect.bottom + 10);
+    }
+    scrollArea.addEventListener('scroll', checkScrollBottom);
+    new MutationObserver(function() {
+      if (!document.getElementById('xftp-protocol').classList.contains('hidden')) {
+        requestAnimationFrame(checkScrollBottom);
+      }
+    }).observe(document.getElementById('xftp-protocol'), { attributes: true, attributeFilter: ['class'] });
+  }
+</script>
+
+<div id="address-portability" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Address portability</h1><div class="overlay-content"><p>Similarly to <a href="https://en.wikipedia.org/wiki/Local_number_portability">phone number portability</a> (the ability of the customer to transfer the service to another provider without changing the number), the address portability means the ability of a communication service customer to change the service provider without changing the service address. Many <a href="#federated-network">federated networks</a> support SRV records to provide address portability, but allowing service users to set up their own domains for the addresses is not as commonly supported by the available server and client software as for email.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="federated-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Federated network</h1><div class="overlay-content"><p>Federated network is provided by several entities that agree upon the standards and operate the network collectively. This allows the users to choose their provider, that will hold their account, their messaging history and contacts, and communicate with other providers' servers on behalf of the user. The examples are email, XMPP, Matrix and Mastodon.</p><p>The advantage of that design is that there is no single organization that all users depend on, and the standards are more difficult to change, unless it benefits all users. There are several disadvantages: 1) the innovation is slower, 2) each user account still depends on a single organization, and in most cases can't move to another provider without changing their network address – there is no <a href="#address-portability">address portability</a>, 3) the security and privacy are inevitably worse than with the centralized networks.</p><p><a href="https://en.wikipedia.org/wiki/Federation_(information_technology)">Federation on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="anonymous-credentials" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Anonymous credentials</h1><div class="overlay-content"><p>The credential that allows proving something, e.g. the right to access some resource, without identifying the user. This credential can either be generated by a trusted party or by the user themselves and provided together with the request to create the resource. The first approach creates some centralized dependency in most cases. The second approach does not require any trust - this is used in SimpleX network to authorize access to the messaging queues.</p><p><a href="https://en.wikipedia.org/wiki/Digital_credential">Digital credential on Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="blockchain" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Blockchain</h1><div class="overlay-content"><p>In a wide sense, blockchain means a sequence of blocks of data, where each block contains a cryptographic hash of the previous block, thus providing integrity to the whole chain. Blockchains are used in many communication and information storage systems to provide integrity and immutability of the data. For example, BluRay disks use blockchain. SimpleX messaging queues also use blockchain - each message includes the hash of the previous message, to ensure the integrity – if any message is modified it will be detected by the recipient when the next message is received. Blockchains are a subset of <a href="#merkle-directed-acyclic-graph">Merkle directed acyclic graphs</a>.</p><p>In a more narrow sense, particularly in media, blockchain is used to refer specifically to distributed ledger, where each record also includes the hash of the previous record, but the blocks have to be agreed by the participating peers using some <a href="https://en.wikipedia.org/wiki/Consensus_(computer_science)">consensus protocol</a>.</p><p><a href="https://en.wikipedia.org/wiki/Blockchain">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="merkle-directed-acyclic-graph" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Merkle directed acyclic graph</h1><div class="overlay-content"><p>Also known as Merkle DAG, a data structure based on a general graph structure where node contains the cryptographic hashes of the previous nodes that point to it. Merkle trees are a subset of Merkle DAGs - in this case each leaf contains a cryptographic hash of the parent.</p><p>This structure by design allows to verify the integrity of the whole structure by computing its hashes and comparing with the hashes included in the nodes, in the same way as with <a href="#blockchain">blockchain</a>.</p><p>The motivation to use DAG in distributed environments instead of a simpler linear blockchain is to allow concurrent additions, when there is no requirement for a single order of added items. Merkle DAG is used, for example, in <a href="https://en.wikipedia.org/wiki/InterPlanetary_File_System">IPFS</a> and will be used in decentralized SimpleX groups.</p><p><a href="https://en.wikipedia.org/wiki/Merkle_tree">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="break-in-recovery" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Break-in recovery</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="double-ratchet-algorithm" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Double ratchet algorithm</h1><div class="overlay-content"><p>It is used by two parties to exchange <a href="#end-to-end-encryption">end-to-end encrypted</a> messages. The parties will use some <a href="#key-agreement-protocol">key agreement protocol</a> to agree on the initial shared secret key.</p><p>Double Ratchet algorithm provides <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>. It is <a href="https://signal.org/docs/specifications/doubleratchet">designed by Signal</a>, and used in SimpleX Chat and many other secure messengers. Most experts consider it the state-of-the-art encryption protocol in message encryption.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="centralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Centralized network</h1><div class="overlay-content"><p>Centralized networks are provided or controlled by a single entity. The examples are Threema, Signal, WhatsApp and Telegram. The advantage of that design is that the provider can innovate faster, and has a centralized approach to security. But the disadvantage is that the provider can change or discontinue the service, and leak, sell or disclose in some other way all users' data, including who they are connected with.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="content-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Content padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="decentralized-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Decentralized network</h1><div class="overlay-content"><p>Decentralized network is often used to mean "the network based on decentralized blockchain". In its original meaning, decentralized network means that there is no central authority or any other point of centralization in the network, other than network protocols specification. The advantage of decentralized networks is that they are resilient to censorship and to the provider going out of business. The disadvantage is that they are often slower to innovate, and the security may be worse than with the centralized network.</p><p>The examples of decentralized networks are email, web, DNS, XMPP, Matrix, BitTorrent, etc. All these examples have a shared global application-level address space. Cryptocurrency blockchains not only have a shared address space, but also a shared state, so they are more centralized than email. Tor network also has a shared global address space, but also a central authority. SimpleX network does not have a shared application-level address space (it relies on the shared transport-level addresses - SMP relay hostnames or IP addresses), and it does not have any central authority or any shared state.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="defense-in-depth" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Defense in depth</h1><div class="overlay-content"><p>Originally, it is a military strategy that seeks to delay rather than prevent the advance of an attacker, buying time and causing additional casualties by yielding space.</p><p>In information security, defense in depth represents the use of multiple computer security techniques to help mitigate the risk of one component of the defense being compromised or circumvented. An example could be anti-virus software installed on individual workstations when there is already virus protection on the firewalls and servers within the same environment.</p><p>SimpleX network applies defense in depth approach to security by having multiple layers for the communication security and privacy:</p><ul>
+<li>double ratchet algorithm for <a href="#end-to-end-encryption">end-to-end encryption</a> with <a href="#forward-secrecy">perfect forward secrecy</a> and <a href="#post-compromise-security">post-compromise security</a>,</li>
+<li>additional layer of end-to-end encryption for each messaging queue and another encryption layer of encryption from the server to the recipient inside TLS to prevent correlation by ciphertext,</li>
+<li>TLS with only strong ciphers allowed,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-server connection via server offline certificate verification,</li>
+<li>mitigation of replay attacks via signing over transport channel binding,</li>
+<li>multiple layers of <a href="#message-padding">message padding</a> to reduce efficiency of traffic analysis,</li>
+<li>mitigation of <a href="#man-in-the-middle-attack">man-in-the-middle attack</a> on client-client out-of-band channel when sending the invitation,</li>
+<li>rotation of delivery queues to reduce efficiency of traffic analysis,</li>
+<li>etc.</li>
+</ul><p><a href="https://en.wikipedia.org/wiki/Defence_in_depth">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="end-to-end-encryption" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">End-to-end encryption</h1><div class="overlay-content"><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><p>End-to-end encryption requires agreeing cryptographic keys between the sender and the recipient in a way that no eavesdroppers can access the agreed keys. See <a href="#key-agreement-protocol">key agreement protocol</a>. This key exchange can be compromised via <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>, particularly if key exchange happens via the same communication provider and no out-of-band channel is used to verify key exchange.</p><p><a href="https://en.wikipedia.org/wiki/End-to-end_encryption">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-compromise-security" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-compromise security</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="man-in-the-middle-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Man-in-the-middle attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="message-padding" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Message padding</h1><div class="overlay-content"><p>Also known as content padding, it is the process of adding data to the beginning or the end of a message prior to encryption. Padding conceals the actual message size from any eavesdroppers. SimpleX has several encryption layers, and prior to each encryption the content is padded to a fixed size.</p><p><a href="https://en.wikipedia.org/wiki/Padding_(cryptography)">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="key-agreement-protocol" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key agreement protocol</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="tooltip-end-to-end-encryption" class="glossary-tooltip"><div class="tooltip-content"><h4 class="tooltip-title">End-to-end encryption</h4><p>A communication system where only the communicating parties can read the messages. It is designed to protect message content from any potential eavesdroppers – telecom and Internet providers, malicious actors, and also the provider of the communication service.</p><button class="read-more-btn open-overlay-btn" data-show-overlay="end-to-end-encryption">Read more</button></div></div><div id="key-exchange" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Key exchange</h1><div class="overlay-content"><p>Also known as key exchange, it is a process of agreeing cryptographic keys between the sender and the recipient(s) of the message. It is required for <a href="#end-to-end-encryption">end-to-end encryption</a> to work. Unless it is possible to secure the key exchange via <a href="#2-factor-key-exchange">some second factor</a>, e.g. security code verification, it can be vulnerable to <a href="#man-in-the-middle-attack">man-in-the-middle attack</a>.</p><p><a href="https://en.wikipedia.org/wiki/Key-agreement_protocol">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="mitm-attack" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">MITM attack</h1><div class="overlay-content"><p>The attack when the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other.</p><p>This attack can be used to compromise <a href="#end-to-end-encryption">end-to-end encryption</a> by intercepting public keys during <a href="#key-agreement-protocol">key exchange</a>, substituting them with the attacker's keys, and then intercepting and re-encrypting all messages, without altering their content. With this attack, while the attacker does not change message content, but she can read the messages, while the communicating parties believe the messages are end-to-end encrypted.</p><p>Such attack is possible with any system that uses the same channel for key exchange as used to send messages - it includes almost all communication systems except SimpleX, where the initial public key is always passed out-of-band. Even with SimpleX, the attacker may intercept and substitute the key sent via another channel, gaining access to communication. This risk is substantially lower, as attacker does not know in advance which channel will be used to pass the key.</p><p>To mitigate such attack the communicating parties must verify the integrity of key exchange - SimpleX and many other messaging apps, e.g. Signal and WhatsApp, have the feature that allows it.</p><p><a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="non-repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Non-repudiation</h1><div class="overlay-content">Non-repudiation</div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="onion-routing" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Onion routing</h1><div class="overlay-content"><p>A technique for anonymous communication over a computer network that uses multiple layers of message encryption, analogous to the layers of an onion. The encrypted data is transmitted through a series of network nodes called "onion routers," each of which "peels" away a single layer, revealing the data's next destination. The sender remains anonymous because each intermediary knows only the location of the immediately preceding and following nodes.</p><p>The most widely used onion network is <a href="https://en.wikipedia.org/wiki/Tor_(network)">Tor</a>.</p><p>Some elements of SimpleX network use similar ideas in their design - different addresses for the same resource used by different parties, and additional encryption layers. Currently though, SimpleX messaging protocol does not protect sender network address, as the relay server is chosen by the recipient. The delivery relays chosen by sender that are planned for the future would make SimpleX design closer to onion routing.</p><p><a href="https://en.wikipedia.org/wiki/Onion_routing">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="overlay-network" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Overlay network</h1><div class="overlay-content"><p>Nodes in the overlay network can be thought of as being connected by virtual or logical links, each of which corresponds to a path, perhaps through many physical links, in the underlying network. Tor, for example, is an overlay network on top of IP network, which in its turn is also an overlay network over some underlying physical network.</p><p>SimpleX Clients also form a network using SMP relays and IP or some other overlay network (e.g., Tor), to communicate with each other. SMP relays, on another hand, do not form a network.</p><p><a href="https://en.wikipedia.org/wiki/Overlay_network">Wikipedia</a></p><h1>Non-repudiation</h1><p>The property of the cryptographic or communication system that allows the recipient of the message to prove to any third party that the sender identified by some cryptographic key sent the message. It is the opposite to <a href="#repudiation">repudiation</a>. While in some context non-repudiation may be desirable (e.g., for contractually binding messages), in the context of private communications it may be undesirable.</p><p><a href="https://en.wikipedia.org/wiki/Non-repudiation">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="repudiation" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Repudiation</h1><div class="overlay-content"><p>The property of the cryptographic or communication system that allows the sender of the message to plausibly deny having sent the message, because while the recipient can verify that the message was sent by the sender, they cannot prove it to any third party - the recipient has a technical ability to forge the same encrypted message. This is an important quality of private communications, as it allows to have the conversation that can later be denied, similarly to having a private face-to-face conversation.</p><p>See also <a href="#non-repudiation">non-repudiation</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="pairwise-pseudonymous-identifier" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Pairwise pseudonymous identifier</h1><div class="overlay-content"><p>Generalizing <a href="https://csrc.nist.gov/glossary/term/pairwise_pseudonymous_identifier">the definition</a> from NIST Digital Identity Guidelines, it is an opaque unguessable identifier generated by a service used to access a resource by only one party.</p><p>In the context of SimpleX network, these are the identifiers generated by SMP relays to access anonymous messaging queues, with a separate identifier (and access credential) for each accessing party: recipient, sender and and optional notifications subscriber. The same approach is used by XFTP relays to access file chunks, with separate identifiers (and access credentials) for sender and each recipient.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Peer-to-peer</h1><div class="overlay-content"><p>Peer-to-peer (P2P) is the network architecture when participants have equal rights and communicate directly via a general purpose transport or overlay network. Unlike client-server architecture, all peers in a P2P network both provide and consume the resources. In the context of messaging, P2P architecture usually means that the messages are sent between peers, without user accounts or messages being stored on any servers. Examples are Tox, Briar, Cwtch and many others.</p><p>The advantage is that the participants do not depend on any servers. There are <a href="./SIMPLEX.md#comparison-with-p2p9-messaging-protocols">multiple downsides</a> to that architecture, such as no asynchronous message delivery, the need for network-wide peer addresses, possibility of network-wide attacks, that are usually mitigated only by using a centralized authority. These disadvantages are avoided with <a href="#proxied-peer-to-peer">proxied P2P</a> architecture.</p><p><a href="https://en.wikipedia.org/wiki/Peer-to-peer">Wikipedia</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="proxied-peer-to-peer" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Proxied peer-to-peer</h1><div class="overlay-content"><p>Network topology of the communication system when peers communicate via proxies that do not form the network themselves. Such design is used in Pond, that has a fixed home server for each user, and in SimpleX, that uses multiple relays providing temporary connections.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="perfect-forward-secrecy" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Perfect forward secrecy</h1><div class="overlay-content"><p>Also known as perfect forward secrecy, it is a feature of a <a href="#key-agreement-protocol">key agreement protocol</a> that ensures that session keys will not be compromised even if long-term secrets used in the session key exchange are compromised. Forward secrecy protects past sessions against future compromises of session or long-term keys.</p><p><a href="https://en.wikipedia.org/wiki/Forward_secrecy">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-cryptography" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum cryptography</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="post-quantum-hybrid-crypto" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Post-quantum hybrid crypto</h1><div class="overlay-content"><p>Any of the proposed cryptographic systems or algorithms that are thought to be secure against an attack by a quantum computer. It appears that as of 2025 there is no system or algorithm that is <em>proven</em> to be secure against such attacks, or even to be secure against attacks by massively parallel conventional computers, so a general recommendation is to use post-quantum hybrid cryptography - combining post-quantum and traditional algorigthms.</p><p><a href="https://en.wikipedia.org/wiki/Post-quantum_cryptography">Wikipedia</a></p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="recovery-from-compromise" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">Recovery from compromise</h1><div class="overlay-content"><p>The quality of the end-to-end encryption scheme allowing to recover security against a passive attacker who observes encrypted messages after compromising one (or both) of the parties. Also known as recovery from compromise or break-in recovery. <a href="#double-ratchet-algorithm">Double-ratchet algorithm</a> has this quality.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div><div id="user-identity" class="overlay glossary-overlay hidden"><div class="overlay-card"><h1 class="overlay-title">User identity</h1><div class="overlay-content"><p>In a communication system it refers to anything that uniquely identifies the users to the network. Depending on the communication network, it can be a phone number, email address, username, public key or a random opaque identifier. Most messaging networks rely on some form of user identity. SimpleX appears to be the only messaging network that does not rely on any kind of user identity - see <a href="https://en.wikipedia.org/wiki/Comparison_of_instant_messaging_protocols">this comparison</a>.</p></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 13.1513 12.5941C13.4461 12.4141 13.4461 12.0791 13.1513 11.8991L12.7973 11.5525Z"></path></svg></div></div></body></html>
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+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            SimpleX Whitepaper
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                        <a href="https://github.com/simplex-chat/simplex-chat/blob/stable/docs/protocol/simplex-chat.md"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            SimpleX Chat 協定
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                        <a href="https://github.com/simplex-chat/simplex-chat/blob/stable/docs/CLI.md"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            終端 CLI
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                        <a href="https://github.com/simplex-chat/simplex-chat/tree/stable/bots"
+                            target="_blank"
+                            class="text-grey-black dark:text-white text-[14px] font-medium leading-[28px] tracking-[0.01em] mb-3 flex items-center gap-1">
+                            SimpleX bots API
+                            <svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
+                        </a>
+                    </div>
+                </div>
+            </div>
+
+            <article class="mt-10 lg:mt-0">
+                <div class="h-[40px] flex flex-col gap-2 justify-center">
+                    <div class="flex gap-2 justify-center">
+                        <a href="https://simplex.chat/contact#/?v=1&smp=smp%3A%2F%2FPQUV2eL0t7OStZOoAsPEV2QYWt4-xilbakvGUGOItUo%3D%40smp6.simplex.im%2FK1rslx-m5bpXVIdMZg9NLUZ_8JBm8xTt%23%2F%3Fv%3D1%26dh%3DMCowBQYDK2VuAyEALDeVe-sG8mRY22LsXlPgiwTNs9dbiLrNuA7f3ZMAJ2w%253D%26srv%3Dbylepyau3ty4czmn77q4fglvperknl4bi2eb2fdy2bh4jxtf32kf73yd.onion">
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diff --git a/zh_Hant/index.html b/zh_Hant/index.html
index be562416e6..7d3986125f 100644
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+++ b/zh_Hant/index.html
@@ -149,6 +149,8 @@
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diff --git a/zh_Hant/invitation/index.html b/zh_Hant/invitation/index.html
index ee0c65df29..26614ead20 100644
--- a/zh_Hant/invitation/index.html
+++ b/zh_Hant/invitation/index.html
@@ -129,6 +129,8 @@
                 </a>
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+            
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diff --git a/zh_Hant/messaging/index.html b/zh_Hant/messaging/index.html
index 2934c98f28..3132b6d9dd 100644
--- a/zh_Hant/messaging/index.html
+++ b/zh_Hant/messaging/index.html
@@ -129,6 +129,8 @@
                 </a>
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+            
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diff --git a/zh_Hant/old/index.html b/zh_Hant/old/index.html
index eb0d28c61c..b23027710a 100644
--- a/zh_Hant/old/index.html
+++ b/zh_Hant/old/index.html
@@ -129,6 +129,8 @@
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diff --git a/zh_Hant/why/index.html b/zh_Hant/why/index.html
index 1e9398f9eb..3d6bcac875 100644
--- a/zh_Hant/why/index.html
+++ b/zh_Hant/why/index.html
@@ -129,6 +129,8 @@
                 </a>
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