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simplex-chat/pl/index.html
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<!DOCTYPE html>
<html lang="pl"
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 Chat: private and secure messenger without any user IDs (not even random)</title>
<meta name="description" content="SimpleX Chat - a private and encrypted messenger without any user IDs (not even random ones)! Make a private connection via link / QR code to send messages and make calls."/>
<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 Chat: private and secure messenger without any user IDs (not even random)"/>
<meta property="og:description" content="SimpleX Chat - a private and encrypted messenger without any user IDs (not even random ones)! Make a private connection via link / QR code to send messages and make calls."/>
<meta property="og:image" content="https://simplex.chat/img/share_simplex.png"/>
<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 href="/css/tailwind.css" rel="stylesheet"/>
<link rel="stylesheet" href="/css/style.css">
<script async defer src="https://buttons.github.io/buttons.js"></script>
<script src="/js/flag-anchor.js"></script>
</head>
<body class="bg-white dark:bg-[#0C0B13]">
<section class="w-full bg-transparent fixed top-0 z-50">
<header class="">
<div class="flex items-center flex-row justify-end m-auto px-4 lg:px-7 h-[66px]">
<a href="/pl" class="h-full hidden dark:hidden lg:flex items-center ltr:mr-auto rtl:ml-auto"><img class="w-auto max-h-[50px] pr-10" src="/img/new/logo-light.png" alt="logo" /></a>
<a href="/pl" class="h-full hidden dark:lg:flex items-center ltr:mr-auto rtl:ml-auto"><img class="w-auto max-h-[50px] pr-10" src="/img/new/logo-dark.png" alt="logo" /></a>
<a href="/pl" class="dark:hidden lg:hidden ltr:mr-auto rtl:ml-auto"><img class="h-[32px]" src="/img/new/logo-symbol-light.svg" alt="" srcset=""></a>
<a href="/pl" class="hidden dark:inline-block dark:lg:hidden lg:hidden ltr:mr-auto rtl:ml-auto"><img class="h-[32px]" src="/img/new/logo-symbol-dark.svg" alt="" srcset=""></a>
<nav class="bg-[#F0F1F2] dark:bg-gradient-radial-mobile dark:lg:bg-none lg:bg-transparent fixed top-[66px] left-0 right-0 bottom-0 lg:top-0 lg:relative" id="menu">
<div class="flex flex-col lg:flex-row justify-between lg:items-center gap-5 xl:gap-10 px-4 lg:px-0 h-full">
<ul class="flex flex-col lg:flex-row lg:items-center gap-3 py-4 lg:py-0 lg:gap-5 xl:gap-8">
<li class="nav-link relative active">
<a href="/pl" class="flex items-center justify-between gap-2 lg:py-5 whitespace-nowrap">
<span class="text-[16px] leading-[26px] tracking-[0.01em] nav-link-text text-black dark:text-white before:bg-black dark:before:bg-white">Strona główna</span>
</a>
</li>
<hr class="dark:opacity-[0.1]" >
<li class="nav-link relative">
<a href="javascript:void(0);" class="flex items-center justify-between gap-2 lg:py-5">
<span class="text-[16px] leading-[26px] tracking-[0.01em] text-black dark:text-white before:bg-black dark:before:bg-white">Przewodnik</span>
<span href="" id="btn-mobile" class="flex items-center justify-center h-[36px] w-[36px] lg:h-auto lg:w-auto mt-1">
<svg class="fill-black dark:fill-white" width="10" height="6" 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="flex flex-col items-start gap-2 lg:h-fit lg:absolute lg:bg-white dark:lg:bg-black top-full lg:mt-[10px] lg:py-4 min-w-[180px] rounded-md lg:shadow-[0_0_3px_rgb(60_72_88_/_15%)] sub-menu">
<li><a href="/docs/guide/readme.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Szybki start</a></li>
<li><a href="/docs/guide/send-messages.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Wysyłanie wiadomości</a></li>
<li><a href="/docs/guide/secret-groups.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Tajne grupy</a></li>
<li><a href="/docs/guide/chat-profiles.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Profile czatu</a></li>
<li><a href="/docs/guide/managing-data.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Zarządzanie danymi</a></li>
<li><a href="/docs/guide/audio-video-calls.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Połączenia audio i wideo</a></li>
<li><a href="/docs/guide/privacy-security.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Prywatność i bezpieczeństwo</a></li>
<li><a href="/docs/guide/app-settings.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Ustawienia aplikacji</a></li>
<li><a href="/docs/guide/making-connections.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Nawiązywanie połączeń</a></li>
</ul>
</li>
<hr class="dark:opacity-[0.1]" >
<li class="nav-link relative">
<a href="javascript:void(0);" class="flex items-center justify-between gap-2 lg:py-5">
<span class="text-[16px] leading-[26px] tracking-[0.01em] text-black dark:text-white before:bg-black dark:before:bg-white">Odnośniki</span>
<span href="" id="btn-mobile" class="flex items-center justify-center h-[36px] w-[36px] lg:h-auto lg:w-auto mt-1">
<svg class="fill-black dark:fill-white" width="10" height="6" 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="flex flex-col items-start gap-2 lg:h-fit lg:absolute lg:bg-white dark:lg:bg-black top-full lg:mt-[10px] lg:py-4 min-w-[180px] rounded-md lg:shadow-[0_0_3px_rgb(60_72_88_/_15%)] sub-menu">
<li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md"
target="_blank" class="lg:px-[20px] flex items-center gap-1"
>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></li>
<li><a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/simplex-messaging.md"
target="_blank" class="lg:px-[20px] flex items-center gap-1"
>Protokół SMP
<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></li>
<li><a href="/docs/protocol/simplex-chat.html" class="lg:px-[20px] inline-block"
>Protokół czatu</a></li>
<li><a href="/docs/glossary.html" class="lg:px-[20px] inline-block"
>Glossary</a></li>
<hr class=" h-[1px] w-full dark:opacity-[0.1]">
<li><a href="/docs/simplex.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Platforma 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/sql.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Dostęp do bazy danych czatu</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="/docs/translations.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Przetłumacz SimpleX Chat</a></li>
<hr class=" h-[1px] w-full dark:opacity-[0.1]">
<li><a href="https://github.com/simplex-chat/simplex-chat/blob/stable/apps/simplex-bot-advanced/Main.hs"
target="_blank" class="lg:px-[20px] flex items-center gap-1"
>Przykładowy chatbot
<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></li>
<li><a href="https://github.com/simplex-chat/simplex-chat/tree/stable/packages/simplex-chat-client/typescript"
target="_blank" class="lg:px-[20px] flex items-center gap-1"
>TypeScript SDK
<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></li>
<li><a href="/docs/cli.html" class="lg:px-[20px] inline-block"
>Terminal CLI</a></li>
<li><a href="https://github.com/simplex-chat/simplexmq"
target="_blank" class="lg:px-[20px] flex items-center gap-1"
>SimpleXMQ
<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></li>
</ul>
</li>
<hr class="dark:opacity-[0.1]" >
<li class="nav-link relative ">
<a href="/blog" class="flex items-center justify-between gap-2 lg:py-5">
<span class="text-[16px] leading-[26px] tracking-[0.01em] nav-link-text text-black dark:text-white before:bg-black dark:before:bg-white">Blog</span>
</a>
</li>
</ul>
<a href="https://github.com/simplex-chat/simplex-chat#help-us-with-donations"
target="_blank" class="whitespace-nowrap flex items-center gap-1 self-center text-white dark:text-black text-[16px] font-medium tracking-[0.02em] rounded-[34px] bg-primary-light dark:bg-primary-dark py-3 lg:py-2 px-20 lg:px-5 mb-16 lg:mb-0"
>Darowizna
</a>
<div class="inline-block dark:hidden self-center mt-[8px]">
<a class="github-button" href="https://github.com/simplex-chat/simplex-chat" data-size="large"
data-show-count="true" aria-label="Star simplex-chat on GitHub">Star</a>
</div>
<div class="hidden dark:inline-block self-center mt-[8px]">
<a class="github-button" href="https://github.com/simplex-chat/simplex-chat" data-size="large"
data-color-scheme="no-preference: dark; light: dark; dark: dark;"
data-show-count="true" aria-label="Star simplex-chat on GitHub">Star</a>
</div>
</div>
</nav>
<div class="nav-link relative flag-container">
<a href="javascript:void(0);" class="flex items-center justify-end ltr:ml-8 ltr:lg:ml-5 ltr:xl:ml-10 rtl:mr-8 rtl:lg:mr-5 rtl:xl:mr-10 h-6 w-8 whitespace-nowrap">
<img src="/img/flags/pl.svg" alt="" srcset="">
</a>
<ul class="flex flex-col items-start gap-2 h-fit absolute top-11 -left-10 bg-white dark:bg-black mt-[10px] py-4 min-w-[170px] rounded-md shadow-[0_0_3px_rgb(60_72_88_/_15%)] sub-menu overflow-auto">
<li>
<a href="/" class="px-[20px] flex items-center gap-4 flag-anchor whitespace-nowrap">
<img class="h-4" src="/img/flags/en.svg" alt="" srcset="">
<p>English</p>
</a>
</li>
<li>
<a href="/ar/" class="px-[20px] flex items-center gap-4 flag-anchor whitespace-nowrap">
<div class="flex items-center justify-center" style="background-color:green; color:white; width:21.33px; height:16px">
<p style="text-align:center; font-size:7px">العربية</p>
</div>
<p>العربية</p>
</a>
</li>
<li>
<a href="/cs/" class="px-[20px] flex items-center gap-4 flag-anchor whitespace-nowrap">
<img class="h-4" src="/img/flags/cs.svg" alt="" srcset="">
<p>Čeština</p>
</a>
</li>
<li>
<a href="/de/" class="px-[20px] flex items-center gap-4 flag-anchor whitespace-nowrap">
<img class="h-4" src="/img/flags/de.svg" alt="" srcset="">
<p>Deutsch</p>
</a>
</li>
<li>
<a href="/es/" class="px-[20px] flex items-center gap-4 flag-anchor whitespace-nowrap">
<img class="h-4" src="/img/flags/es.svg" alt="" srcset="">
<p>Español</p>
</a>
</li>
<li>
<a href="/fr/" class="px-[20px] flex items-center gap-4 flag-anchor whitespace-nowrap">
<img class="h-4" src="/img/flags/fr.svg" alt="" srcset="">
<p>Français</p>
</a>
</li>
<li>
<a href="/it/" class="px-[20px] flex items-center gap-4 flag-anchor whitespace-nowrap">
<img class="h-4" src="/img/flags/it.svg" alt="" srcset="">
<p>Italiano</p>
</a>
</li>
<li>
<a href="/nl/" class="px-[20px] flex items-center gap-4 flag-anchor whitespace-nowrap">
<img class="h-4" src="/img/flags/nl.svg" alt="" srcset="">
<p>Nederlands</p>
</a>
</li>
<li>
<a href="/pl/" class="px-[20px] flex items-center gap-4 flag-anchor whitespace-nowrap">
<img class="h-4" src="/img/flags/pl.svg" alt="" srcset="">
<p>Polski</p>
</a>
</li>
<li>
<a href="/pt_BR/" class="px-[20px] flex items-center gap-4 flag-anchor whitespace-nowrap">
<img class="h-4" src="/img/flags/br.svg" alt="" srcset="">
<p>Português</p>
</a>
</li>
<li>
<a href="/zh_Hans/" class="px-[20px] flex items-center gap-4 flag-anchor whitespace-nowrap">
<img class="h-4" src="/img/flags/cn.svg" alt="" srcset="">
<p>简体中文</p>
</a>
</li>
</ul>
</div>
<button href="#" class="flex items-center justify-center h-[36px] w-[36px] ltr:ml-8 ltr:lg:ml-4 ltr:xl:ml-8 rtl:mr-8 rtl:lg:mr-4 rtl:xl:mr-8 theme-switch-btn">
<img src="/img/new/sun.svg" alt="" srcset="" class="sun">
<img src="/img/new/moon.svg" alt="" srcset="" class="moon">
</button>
<button href="" id="btn-mobile" class="flex lg:hidden items-center justify-center h-[36px] w-[36px] ltr:ml-8 ltr:lg:ml-5 ltr:xl:ml-10 rtl:mr-8 rtl:lg:mr-5 rtl:xl:mr-10 nav-toggle-btn">
<img src="/img/new/hamburger.svg" id="hamburger" alt="" srcset="">
<svg class="fill-black dark:fill-white hidden" id="cross" width="13" height="13" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
<path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 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>
<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')
const iconToggle = () => {
sunIcon.classList.toggle('hidden');
moonIcon.classList.toggle('hidden');
}
const 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')
}
}
}
const 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 nav');
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')){
document.body.classList.toggle('lock-scroll');
if(nav.classList.contains('open')){
nav.classList.remove('open');
document.getElementById('hamburger').classList.remove('hidden');
document.getElementById('cross').classList.add('hidden');
}
else{
nav.classList.add('open');
document.getElementById('hamburger').classList.add('hidden');
document.getElementById('cross').classList.remove('hidden');
}
}
else if(e.target.closest('.theme-switch-btn')){
themeSwitch();
}
})
themeCheck();
const changeHeaderBg = ()=>{
const header = document.querySelector('header')
const scrollValue = window.scrollY
if(scrollValue > 5){
header.classList.add('bg-primary-bg-light');
header.classList.add('dark:bg-primary-bg-dark');
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else{
header.classList.remove('bg-primary-bg-light');
header.classList.remove('dark:bg-primary-bg-dark');
}
}
window.addEventListener('scroll',changeHeaderBg);
</SCript>
</section>
<html><head></head><body><div class="first-two-sections pt-[66px] bg-white dark:bg-gradient-radial-mobile dark:lg:bg-gradient-radial">
<div class="md:flex md:flex-col-reverse md:items-center xl:flex xl:flex-row xl:items-start relative xl:justify-between xl:gap-10 container">
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<section class="xl:h-[calc(100vh-66px)] hero-section-1 xl:max-h-[888px] m-auto w-full flex items-center justify-between landing-page-header px-5">
<div class="xl:h-full flex flex-col items-center xl:items-start xl:justify-around w-full landing-page-header-div">
<img class="static-phone-mobile md:hidden" src="/img/new/mobile-hero.png" alt="">
<article class="w-full xl:max-w-[600px] landing-page-header-article">
<h1 class="primary-header text-center xl:text-left xl:rtl:text-right font-bold text-[38px] md:text-[55px] leading-[46px] md:leading-[63px] mb-2 xl:mb-8">Prywatność zdefiniowana na nowo</h1>
<h2 class="secondary-header text-center xl:text-left xl:rtl:text-right font-bold text-[28px] md:text-[38px] leading-[36px] md:leading-[43px] mb-2 xl:mb-8 tracking-[0.01em]">Pierwszy komunikator<br>bez identyfikatorów użytkowników (ID)</h2>
<p class="landing-page-header-article-paragraph text-black dark:text-white text-center xl:text-justify text-[16px] leading-[24px] mb-[20px] header-description">
Inne aplikacje mają identyfikatory użytkowników (ID): Signal, Matrix, Session, Briar, Jami, Cwtch itp.<br> SimpleX nie, <strong>nie ma nawet losowych numerów</strong>.<br> To radykalnie poprawia Twoją prywatność.
</p>
<a href="javascript:void(0)" data-show-overlay="why-ids-bad-for-privacy" class="open-overlay-btn underline text-primary-light dark:text-primary-dark block text-center xl:text-left xl:rtl:text-right text-[14px] xl:text-[16px] leading-[34px] underline-offset-2">Dlaczego identyfikatory użytkowników (ID) są złe dla prywatności?</a>
<div id="why-ids-bad-for-privacy" 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 ">Dlaczego identyfikatory użytkowników (ID) są złe dla prywatności?</h1>
<div class="flex flex-col-reverse lg:flex-row gap-10 justify-between">
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<p>
Gdy użytkownicy mają trwałe tożsamości, nawet jeśli jest to tylko losowa liczba, jak ID sesji, istnieje ryzyko, że dostawca lub atakujący może obserwować, jak użytkownicy są połączeni i ile wiadomości wysyłają.
</p>
<p>
Następnie mogliby skorelować te informacje z istniejącymi publicznymi sieciami społecznymi i określić niektóre prawdziwe tożsamości.
</p>
<p>
Nawet w przypadku najbardziej prywatnych aplikacji, które korzystają z trzeciej wersji usług Tor, jeśli rozmawiasz z dwoma różnymi kontaktami za pośrednictwem tego samego profilu, mogą one udowodnić, że są połączone z tą samą osobą.
</p>
<p>
SimpleX chroni przed tymi atakami, nie mając w swojej konstrukcji żadnych identyfikatorów użytkowników. A jeśli używasz trybu Incognito, będziesz miał inną nazwę wyświetlania dla każdego kontaktu, unikając wszelkich wspólnych danych między nimi.
</p>
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</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/explained-1.svg" alt="">
<img class="w-full max-w-[448px] min-w-[300px] hidden dark:block" src="/img/new/explained-1.svg" alt="">
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</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>
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<a href="javascript:void(0)" data-show-overlay="how-simplex-works" class="open-overlay-btn underline text-primary-light dark:text-primary-dark block text-center xl:text-left xl:rtl:text-right text-[14px] xl:text-[16px] leading-[34px] underline-offset-2">Jak działa SimpleX?</a>
<div id="how-simplex-works" 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 ">Jak działa SimpleX?</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">
<p>
Wielu użytkowników pytało: <em>jeśli SimpleX nie ma identyfikatorów użytkowników, skąd może wiedzieć, gdzie dostarczyć wiadomości?</em>
</p>
<p>
Aby dostarczyć wiadomości, zamiast identyfikatorów użytkownika używanych przez wszystkie inne platformy, SimpleX używa tymczasowych anonimowych identyfikatorów kolejek wiadomości, oddzielnych dla każdego z twoich połączeń — nie ma żadnych długoterminowych identyfikatorów.
</p>
<p>
Ty określasz, którego serwera (serwerów) użyć do odbierania wiadomości, Twoje kontakty — serwery, których używasz do wysyłania do nich wiadomości. Każda rozmowa prawdopodobnie będzie korzystać z dwóch różnych serwerów.
</p>
<p>
Taka konstrukcja zapobiega wyciekowi jakichkolwiek' metadanych użytwoników na poziomie aplikacji. Aby jeszcze bardziej zwiększyć prywatność i chronić swój adres IP, możesz połączyć się z serwerami wiadomości przez Tor.
</p>
<p>
Tylko urządzenia klienckie przechowują profile użytkowników, kontakty i grupy; wiadomości są przesyłane z 2-warstwowym szyfrowaniem end-to-end.
</p>
<p>
Więcej w <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md" target="_blank">SimpleX whitepaper</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/explained-2.svg" alt="">
<img class="w-full max-w-[448px] min-w-[300px] hidden dark:block" src="/img/new/explained-2.svg" alt="">
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</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>
</article>
<article class="w-full xl:max-w-[600px]">
<div id="simplex-reviews" class="flex items-center justify-center xl:justify-start flex-wrap gap-4 my-10">
<a class="block rounded overflow-hidden" title="security assessment" href="https://simplex.chat/blog/20221108-simplex-chat-v4.2-security-audit-new-website.html" target="_blank">
<img class="h-[40px] w-auto block dark:hidden" src="/img/trail-of-bits-light.png" alt="Trail of Bits">
<img class="h-[40px] w-auto hidden dark:block" src="/img/trail-of-bits-dark.png" alt="Trail of Bits">
</a>
<a class="block rounded overflow-hidden" title="messenger recommendations" href="https://www.privacyguides.org/en/real-time-communication/#simplex-chat" target="_blank">
<img class="h-[40px] w-auto block dark:hidden" src="/img/privacy-guides-light.png" alt="Privacy Guides">
<img class="h-[40px] w-auto hidden dark:block" src="/img/privacy-guides-dark.png" alt="Privacy Guides">
</a>
<a class="block rounded overflow-hidden" title="publication" href="https://www.heise.de/suche/?q=simplex+chat&amp;sort_by=date&amp;rm=search" target="_blank">
<img class="h-[40px] w-auto block dark:hidden" src="/img/heise-light.png" alt="Heise Online">
<img class="h-[40px] w-auto hidden dark:block" src="/img/heise-dark.png" alt="Heise Online">
</a>
<a class="block rounded overflow-hidden" title="review" href="https://www.kuketz-blog.de/simplex-eindruecke-vom-messenger-ohne-identifier/" target="_blank">
<img class="h-[40px] w-auto block dark:hidden" src="/img/kuketz-blog-light.png" alt="Mike Kuketz blog">
<img class="h-[40px] w-auto hidden dark:block" src="/img/kuketz-blog-dark.png" alt="Mike Kuketz blog">
</a>
<a class="block rounded overflow-hidden" title="podcast interview" href="https://optoutpod.com/episodes/s3e02-simplexchat/" target="_blank">
<img class="h-[40px] w-auto" src="/img/optout.jpg" alt="Opt Out Podcast">
</a>
</div>
<div>
<p class="text-black dark:text-white hidden md:block text-center xl:text-left xl:rtl:text-right text-[16px] leading-[26px] mb-[11px] md:mt-6">Pobierz SimpleX</p>
<div class="socials flex items-center justify-center xl:justify-start gap-4 flex-wrap mt-[30px]">
<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" title="Public iOS preview on TestFlight"><img class="h-[40px] w-auto" src="/img/new/google_play.svg"></a>
<a href="https://app.simplex.chat" target="_blank" title="SimpleX F-Droid Repository"><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.apk" target="_blank"><img class="h-[40px] w-auto" src="/img/new/apk_icon.png"></a>
</div>
</div>
</article>
</div>
</section>
<section class="xl:h-[calc(100vh-66px)] xl:max-h-[888px]">
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<div class="hidden relative md:flex items-center justify-center">
<img id="hero-video-phone-Background hidden md:block" src="/img/new/tab-video.svg">
<video class="absolute rounded-lg top-10 w-[235px] ml-[-6px] mt-1" controls="">
<source src="/video/connect.mp4" type="video/mp4">
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<div class="w-full md:hidden my-10 relative flex items-center justify-center bg-[#17203D]">
<video class="w-full" controls="">
<source src="/video/connect.mp4" type="video/mp4">
</video>
</div>
</div>
<article class="w-full xl:max-w-[600px] landing-page-header-article px-5">
<h2 class="text-active-blue text-center xl:text-left xl:rtl:text-right font-bold text-[28px] md:text-[35px] leading-[36px] md:leading-[43px] mb-[28px]">
Nawiąż prywatne połączenie
</h2>
<p class="text-center text-black dark:text-white xl:text-justify leading-[24px] text-[16px] mb-10 xl:mb-[25px] header-description">
Film pokazuje, jak połączyć się ze znajomym za pomocą jego jednorazowego kodu QR, osobiście lub przez łącze wideo. Możesz również połączyć się poprzez udostępnienie linku zapraszającego.
</p>
</article>
<div class="w-full container px-5 hidden md:flex items-center justify-center gap-[50px] py-[24px] xl:absolute bottom-0 z-10">
<a href="#why-simplex" class="menu-link">Dlaczego SimpleX</a>
<a href="#features" class="menu-link">Funkcje</a>
<a href="#privacy" class="menu-link">Prywatność SimpleX</a>
<a href="#network" class="menu-link">Sieć SimpleX</a>
</div>
</div>
</section>
</div>
<div class="hero-phone-background hidden md:flex md:static md:max-w-[490px] md:mb-6 xl:mb-0 xl:flex items-center justify-center h-fit xl:h-[calc(100vh-66px)] xl:max-h-[888px] xl:min-w-[600px] xl:sticky top-[66px]">
<img id="hero-phone-light" class="only-light">
<img id="hero-phone-dark" class="only-dark">
<div id="hero-phone-preload" style="display: none"></div>
<video id="hero-phone-video" class="absolute hidden rounded-[12px] bg-black w-[238px] mr-[-4px] mt-[14px]" controls="">
<source src="/video/connect.mp4" type="video/mp4">
</video>
</div>
</div>
</div>
<script>
var navBar = document.querySelector("nav");
var landingPageHeader = document.querySelector('.landing-page-header');
//landingPageHeader.style.height = window.innerHeight - navBar.offsetHeight + 'px';
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<section id="why-privacy" class="bg-secondary-bg-light dark:bg-secondary-bg-dark py-[90px] px-5 lg:h-[888px]">
<div class="container">
<h2 class="text-grey-black dark:text-white text-[35px] leading-[45px] md:leading-[55px] lg:text-[45px] text-center font-bold mb-4 md:mb-8">Dlaczego prywatność <span class="gradient-text">ma znaczenie</span></h2>
<p class="text-center text-[18px] md:text-[20px] font-medium mb-7 md:mb-16 lg:mb-20 text-black dark:text-white">Zachowanie prywatności Twoich metadanych — <span class="text-active-blue">z kim rozmawiasz</span> — chroni Cię przed:</p>
<div class="flex flex-col lg:flex-row gap-[20px] mb-[62px] lg:mb-[90px]">
<div class="bg-white dark:bg-transparent px-[34px] flex flex-col md:flex-row lg:flex-col items-center rounded-[12px] dark:rounded-[6px] shadow-[0px_50px_61px_rgba(0,0,0,0.12)] dark:shadow-none flex-[1] border-gradient">
<div class="md:w-[30%] lg:w-full flex items-center justify-center h-[215px]">
<img src="/img/new/privacy-section-1.svg" alt="">
</div>
<div class="md:w-[70%] lg:w-full flex flex-col items-center md:items-start lg:items-center gap-5 mb-[54px] md:mb-0 lg:mb-[54px]">
<p class="font-medium text-xl text-center text-grey-black dark:text-white">Reklama oraz dyskryminacja cenowa</p>
<a href="javascript:void(0);" data-show-overlay="privacy-saves-money" class="open-overlay-btn underline text-primary-light dark:text-primary-dark block text-[16px] text-center underline-offset-2">Prywatność to oszczędność pieniędzy</a>
<div id="privacy-saves-money" data-scroll-to="why-privacy" 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 lg:max-w-[448px]">Prywatność to oszczędność pieniędzy</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">
<p>
Wiele dużych firm wykorzystuje informacje o tym, z kim jesteś połączony, aby oszacować Twoje dochody, sprzedać Ci produkty, których tak naprawdę nie potrzebujesz, oraz ustalić ceny.
</p>
<p>
Sprzedawcy internetowi wiedzą, że osoby o niższych dochodach częściej dokonują pilnych zakupów, więc mogą naliczać wyższe ceny lub usuwać rabaty.
</p>
<p>
Niektóre firmy finansowe i ubezpieczeniowe wykorzystują wykresy społeczne do określania stóp procentowych i składek. Często powoduje to, że osoby o niższych dochodach płacą więcej — jest to znane jako <a href="https://fairbydesign.com/povertypremium/" target="_blank">'premia za ubóstwo'</a>.
</p>
<p>
Platforma SimpleX chroni prywatność Twoich połączeń lepiej niż jakakolwiek alternatywa, w pełni zapobiegając udostępnieniu Twojego wykresu społecznego jakimkolwiek firmom lub organizacjom. Nawet gdy ludzie korzystają z serwerów udostępnianych przez SimpleX Chat, nie znamy liczby użytkowników ani ich połączeń.
</p>
</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>
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</div>
<div class="bg-white dark:bg-transparent px-[34px] flex flex-col md:flex-row lg:flex-col items-center rounded-[12px] dark:rounded-[6px] shadow-[0px_50px_61px_rgba(0,0,0,0.12)] dark:shadow-none flex-[1] border-gradient">
<div class="md:w-[30%] lg:w-full flex items-center justify-center h-[215px]">
<img src="/img/new/privacy-section-2.svg" alt="">
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<div class="md:w-[70%] lg:w-full flex flex-col items-center md:items-start lg:items-center gap-5 mb-[54px] md:mb-0 lg:mb-[54px]">
<p class="font-medium text-xl text-center text-grey-black dark:text-white">Manipulowanie wyborami</p>
<a href="javascript:void(0);" data-show-overlay="privacy-gives-power" class="open-overlay-btn underline text-primary-light dark:text-primary-dark block text-[16px] text-center underline-offset-2">Prywatność daje Ci władzę</a>
<div id="privacy-gives-power" data-scroll-to="why-privacy" 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 lg:max-w-[448px]">Prywatność daje Ci władzę</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">
<p>
Jeszcze nie tak dawno obserwowaliśmy, jak główne wybory były manipulowane przez <a href="https://en.wikipedia.org/wiki/Facebook-Cambridge_Analytica_data_scandal" target="_blank">szacowną firmę konsultingową</a>, która wykorzystywała nasze wykresy społeczne do zniekształcania naszego spojrzenia na świat rzeczywisty i manipulowania naszymi głosami.
</p>
<p>
Aby być obiektywnym i podejmować niezależne decyzje musisz mieć kontrolę nad swoją przestrzenią informacyjną. Jest to możliwe tylko wtedy, gdy korzystasz z prywatnej platformy komunikacyjnej, która nie ma dostępu do Twojego wykresu społecznego.
</p>
<p>
SimpleX to pierwsza platforma, która z założenia nie posiada żadnych identyfikatorów użytkowników, w ten sposób chroniąc Twój wykres połączeń lepiej niż jakakolwiek znana alternatywa.
</p>
</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>
</div>
</div>
<div class="bg-white dark:bg-transparent px-[34px] flex flex-col md:flex-row lg:flex-col items-center rounded-[12px] dark:rounded-[6px] shadow-[0px_50px_61px_rgba(0,0,0,0.12)] dark:shadow-none flex-[1] border-gradient">
<div class="md:w-[30%] lg:w-full flex items-center justify-center h-[215px]">
<img src="/img/new/privacy-section-3.svg" alt="">
</div>
<div class="md:w-[70%] lg:w-full flex flex-col items-center md:items-start lg:items-center gap-5 mb-[54px] md:mb-0 lg:mb-[54px]">
<p class="font-medium text-xl text-center text-grey-black dark:text-white">Ściganie ze względu na niewinne skojarzenie</p>
<a href="javascript:void(0);" data-show-overlay="privacy-protects-freedom" class="open-overlay-btn underline text-primary-light dark:text-primary-dark block text-[16px] text-center underline-offset-2">Prywatność chroni Twoją wolność</a>
<div id="privacy-protects-freedom" data-scroll-to="why-privacy" 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 lg:max-w-[448px]">Prywatność chroni Twoją wolność</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">
<p>
Każdy powinien dbać o prywatność i bezpieczeństwo swojej komunikacji — nieszkodliwe rozmowy mogą narazić Cię na niebezpieczeństwo, nawet jeśli nie masz nic do ukrycia.
</p>
<p>
Jedną z najbardziej wstrząsających historii jest doświadczenie <a href="https://en.wikipedia.org/wiki/Mohamedou_Ould_Slahi" target="_blank">Mohamedou Ould Salahi</a> opisane w jego pamiętniku i pokazane w filmie Mauretańczyk (2021). Został on umieszczony w obozie Guantanamo, bez procesu, i był tam torturowany przez 15 lat po telefonie do swojego krewnego w Afganistanie, pod zarzutem udziału w atakach 9/11, mimo że przez poprzednie 10 lat mieszkał w Niemczech.
</p>
<p>
Zwykli ludzie są aresztowani za to, co udostępniają w sieci, nawet za pośrednictwem swoich "anonimowych" kont, <a href="https://www.dailymail.co.uk/news/article-11282263/Moment-police-swoop-house-devout-catholic-mother-malicious-online-posts.html" target="_blank">nawet w krajach demokratycznych</a>.
</p>
<p>
Nie wystarczy używać komunikatora szyfrowanego end-to-end, wszyscy powinniśmy używać komunikatorów, które chronią prywatność naszych sieci osobistych — z kim jesteśmy połączeni.
</p>
</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>
</div>
</div>
</div>
<p class="text-center w-full max-w-[900px] text-[20px] leading-[28px] m-auto text-black dark:text-white">Upewnij się, że Twój komunikator nie ma dostępu do Twoich danych!</p>
</div>
</section>
<section id="why-simplex" class="bg-primary-bg-light dark:bg-primary-bg-dark py-[90px] overflow-hidden px-0 sm:px-1 xl:h-[888px]">
<div class="container scale-100">
<h2 class="text-grey-black dark:text-white text-[35px] leading-[45px] md:leading-[55px] lg:text-[45px] text-center font-bold mb-14 px-5 sm:px-4">Dlaczego SimpleX jest <span class="gradient-text">unikalny</span></h2>
<div class="swiper unique-swiper px-5 sm:px-4 py-2">
<div class="swiper-wrapper mb-16">
<div class="swiper-slide overflow-hidden flex items-center md:items-start flex-col xl:flex-row-reverse xl:items-center min-h-[620px] md:min-h-fit xl:min-h-[565px] px-4 md:px-10 lg:px-[50px] py-8 lg:py-[50px] rounded-[12px] shadow-[0px_3px_12px_rgba(0,0,0,0.2)] dark:shadow-none border-gradient relative simplex-unique-card">
<div class="md:flex-1 flex items-center justify-center h-[55%] md:h-fit w-full card-image">
<img class="w-full max-w-[400px] dark:hidden" src="/img/new/unique-section-1.png" alt="">
<img class="w-full max-w-[400px] hidden dark:block" src="/img/new/unique-section-1-dark.png" alt="">
</div>
<div class="card-content absolute md:static px-4 md:px-0 bottom-[80px] right-1 left-1 h-[180px] md:h-fit pt-5 lg:pt-0 bg-primary-bg-light dark:bg-primary-bg-dark">
<div class="content-head">
<h1 class="text-[35px] lg:text-[65px] font-bold tracking-[0.06em] text-active-blue text-center md:text-left md:rtl:text-right">#1</h1>
<h3 class="w-full max-w-[617px] text-[25px] leading-[33px] lg:text-[35px] lg:leading-[45px] text-center md:text-left md:rtl:text-right font-bold text-grey-black dark:text-white">Masz pełną prywatność</h3>
</div>
<div class="content-body py-5 md:py-7">
<div class="w-full max-w-[541px] text-[16px] leading-[24px] tracking-[0.02em] mb-[36px] text-grey-black dark:text-white text-center md:text-left md:rtl:text-right">
<p style="padding-bottom:6px;">
SimpleX chroni prywatność Twojego profilu, kontaktów i metadanych, ukrywając je przed serwerami platformy SimpleX i wszelkimi obserwatorami.
</p>
<p>
W przeciwieństwie do każdej innej istniejącej platformy komunikacyjnej, SimpleX nie ma żadnych identyfikatorów przypisanych do użytkowników — <strong>nawet losowych liczb</strong>.
</p>
</div>
<a href="javascript:void(0)" data-show-overlay="privacy-of-identity-contacts-metadata" class="open-overlay-btn underline text-primary-light dark:text-primary-dark block text-[16px] underline-offset-4 tracking-[0.02em] text-center md:text-left md:rtl:text-right">Dowiedz się więcej</a>
</div>
</div>
<div class="hide-show-btn fixed bottom-0 pb-8 pt-2 h-[80px] left-1 right-1 md:hidden flex items-center justify-center bg-primary-bg-light dark:bg-primary-bg-dark scale-100 z-10">
<a href="javascript:void(0);" class="flex items-center gap-2 open-card-btn">
<span class="underline text-[16px] tracking-[0.02em] underline-offset-4 text-primary-light dark:text-primary-dark">Więcej informacji</span>
<span class="flex items-center justify-center mt-1">
<svg class="fill-primary-light dark:fill-primary-dark" width="10" height="6" 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"></path>
</svg>
</span>
</a>
<a href="javascript:void(0);" class="items-center gap-2 close-card-btn hidden">
<span class="underline text-[16px] tracking-[0.02em] underline-offset-4 text-primary-light dark:text-primary-dark">Ukryj informacje</span>
<span class="flex items-center justify-center mt-1">
<svg class="fill-primary-light dark:fill-primary-dark" width="10" height="5" viewBox="0 0 10 5" fill="none" xmlns="http://www.w3.org/2000/svg">
<path fill-rule="evenodd" clip-rule="evenodd" d="M8.40813 4.79332C8.69689 5.06889 9.16507 5.06889 9.45384 4.79332C9.7426 4.51775 9.7426 4.07097 9.45384 3.7954L5.69327 0.206676C5.65717 0.17223 5.61827 0.142089 5.57727 0.116255C5.29026 -0.064587 4.90023 -0.0344467 4.64756 0.206676L0.886983 3.7954C0.598219 4.07097 0.598219 4.51775 0.886983 4.79332C1.17575 5.06889 1.64393 5.06889 1.93269 4.79332L5.17041 1.70356L8.40813 4.79332Z"></path>
</svg>
</span>
</a>
</div>
</div>
<div class="swiper-slide overflow-hidden flex items-center md:items-start flex-col xl:flex-row-reverse xl:items-center min-h-[620px] md:min-h-fit xl:min-h-[565px] px-4 md:px-10 lg:px-[50px] py-8 lg:py-[50px] rounded-[12px] shadow-[0px_3px_12px_rgba(0,0,0,0.2)] dark:shadow-none border-gradient relative simplex-unique-card">
<div class="md:flex-1 flex items-center justify-center h-[55%] md:h-fit w-full card-image">
<img class="w-full max-w-[400px] dark:hidden" src="/img/new/unique-section-2.png" alt="">
<img class="w-full max-w-[400px] hidden dark:block" src="/img/new/unique-section-2-dark.png" alt="">
</div>
<div class="card-content absolute md:static px-4 md:px-0 bottom-[80px] right-1 left-1 h-[180px] md:h-fit pt-5 lg:pt-0 bg-primary-bg-light dark:bg-primary-bg-dark">
<div class="content-head">
<h1 class="text-[35px] lg:text-[65px] font-bold tracking-[0.06em] text-active-blue text-center md:text-left md:rtl:text-right">#2</h1>
<h3 class="w-full max-w-[617px] text-[25px] leading-[33px] lg:text-[35px] lg:leading-[45px] text-center md:text-left md:rtl:text-right font-bold text-grey-black dark:text-white">Jesteś chroniony<br>przed spamem i nadużyciami</h3>
</div>
<div class="content-body py-5 md:py-7">
<div class="w-full max-w-[541px] text-[16px] leading-[24px] tracking-[0.02em] mb-[36px] text-grey-black dark:text-white text-center md:text-left md:rtl:text-right">
<p>
Ponieważ na platformie SimpleX nie masz identyfikatora ani stałego adresu, nikt nie może się z Tobą skontaktować, chyba że udostępnisz jednorazowy lub tymczasowy adres użytkownika, w postaci kodu QR lub linku.
</p>
</div>
<a href="javascript:void(0)" data-show-overlay="protection-from-spam-and-abuse" class="open-overlay-btn underline text-primary-light dark:text-primary-dark block text-[16px] underline-offset-4 tracking-[0.02em] text-center md:text-left md:rtl:text-right">Dowiedz się więcej</a>
</div>
</div>
<div class="hide-show-btn fixed bottom-0 pb-8 pt-2 h-[80px] left-1 right-1 md:hidden flex items-center justify-center bg-primary-bg-light dark:bg-primary-bg-dark scale-100 z-10">
<a href="javascript:void(0);" class="flex items-center gap-2 open-card-btn">
<span class="underline text-[16px] tracking-[0.02em] underline-offset-4 text-primary-light dark:text-primary-dark">Więcej informacji</span>
<span class="flex items-center justify-center mt-1">
<svg class="fill-primary-light dark:fill-primary-dark" width="10" height="6" 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"></path>
</svg>
</span>
</a>
<a href="javascript:void(0);" class="items-center gap-2 close-card-btn hidden">
<span class="underline text-[16px] tracking-[0.02em] underline-offset-4 text-primary-light dark:text-primary-dark">Ukryj informacje</span>
<span class="flex items-center justify-center mt-1">
<svg class="fill-primary-light dark:fill-primary-dark" width="10" height="5" viewBox="0 0 10 5" fill="none" xmlns="http://www.w3.org/2000/svg">
<path fill-rule="evenodd" clip-rule="evenodd" d="M8.40813 4.79332C8.69689 5.06889 9.16507 5.06889 9.45384 4.79332C9.7426 4.51775 9.7426 4.07097 9.45384 3.7954L5.69327 0.206676C5.65717 0.17223 5.61827 0.142089 5.57727 0.116255C5.29026 -0.064587 4.90023 -0.0344467 4.64756 0.206676L0.886983 3.7954C0.598219 4.07097 0.598219 4.51775 0.886983 4.79332C1.17575 5.06889 1.64393 5.06889 1.93269 4.79332L5.17041 1.70356L8.40813 4.79332Z"></path>
</svg>
</span>
</a>
</div>
</div>
<div class="swiper-slide overflow-hidden flex items-center md:items-start flex-col xl:flex-row-reverse xl:items-center min-h-[620px] md:min-h-fit xl:min-h-[565px] px-4 md:px-10 lg:px-[50px] py-8 lg:py-[50px] rounded-[12px] shadow-[0px_3px_12px_rgba(0,0,0,0.2)] dark:shadow-none border-gradient relative simplex-unique-card">
<div class="md:flex-1 flex items-center justify-center h-[55%] md:h-fit w-full card-image">
<img class="w-full max-w-[400px] dark:hidden" src="/img/new/unique-section-3.png" alt="">
<img class="w-full max-w-[400px] hidden dark:block" src="/img/new/unique-section-3-dark.png" alt="">
</div>
<div class="card-content absolute md:static px-4 md:px-0 bottom-[80px] right-1 left-1 h-[180px] md:h-fit pt-5 lg:pt-0 bg-primary-bg-light dark:bg-primary-bg-dark">
<div class="content-head">
<h1 class="text-[35px] lg:text-[65px] font-bold tracking-[0.06em] text-active-blue text-center md:text-left md:rtl:text-right">#3</h1>
<h3 class="w-full max-w-[617px] text-[25px] leading-[33px] lg:text-[35px] lg:leading-[45px] text-center md:text-left md:rtl:text-right font-bold text-grey-black dark:text-white">Masz kontrolę nad swoimi danymi</h3>
</div>
<div class="content-body py-5 md:py-7">
<div class="w-full max-w-[541px] text-[16px] leading-[24px] tracking-[0.02em] mb-[36px] text-grey-black dark:text-white text-center md:text-left md:rtl:text-right">
<p style="padding-bottom:5px;">
SimpleX przechowuje wszystkie dane użytkownika na urządzeniach klienckich w formacie <strong>przenośnej zaszyfrowanej bazy danych</strong> — można je przenieść na inne urządzenie.
</p>
<p>
Wiadomości zaszyfrowane end-to-end są przechowywane tymczasowo na serwerach przekaźnikowych SimpleX do momentu ich odebrania, po czym są trwale usuwane.
</p>
</div>
<a href="javascript:void(0)" data-show-overlay="you-control-your-data" class="open-overlay-btn underline text-primary-light dark:text-primary-dark block text-[16px] underline-offset-4 tracking-[0.02em] text-center md:text-left md:rtl:text-right">Dowiedz się więcej</a>
</div>
</div>
<div class="hide-show-btn fixed bottom-0 pb-8 pt-2 h-[80px] left-1 right-1 md:hidden flex items-center justify-center bg-primary-bg-light dark:bg-primary-bg-dark scale-100 z-10">
<a href="javascript:void(0);" class="flex items-center gap-2 open-card-btn">
<span class="underline text-[16px] tracking-[0.02em] underline-offset-4 text-primary-light dark:text-primary-dark">Więcej informacji</span>
<span class="flex items-center justify-center mt-1">
<svg class="fill-primary-light dark:fill-primary-dark" width="10" height="6" 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"></path>
</svg>
</span>
</a>
<a href="javascript:void(0);" class="items-center gap-2 close-card-btn hidden">
<span class="underline text-[16px] tracking-[0.02em] underline-offset-4 text-primary-light dark:text-primary-dark">Ukryj informacje</span>
<span class="flex items-center justify-center mt-1">
<svg class="fill-primary-light dark:fill-primary-dark" width="10" height="5" viewBox="0 0 10 5" fill="none" xmlns="http://www.w3.org/2000/svg">
<path fill-rule="evenodd" clip-rule="evenodd" d="M8.40813 4.79332C8.69689 5.06889 9.16507 5.06889 9.45384 4.79332C9.7426 4.51775 9.7426 4.07097 9.45384 3.7954L5.69327 0.206676C5.65717 0.17223 5.61827 0.142089 5.57727 0.116255C5.29026 -0.064587 4.90023 -0.0344467 4.64756 0.206676L0.886983 3.7954C0.598219 4.07097 0.598219 4.51775 0.886983 4.79332C1.17575 5.06889 1.64393 5.06889 1.93269 4.79332L5.17041 1.70356L8.40813 4.79332Z"></path>
</svg>
</span>
</a>
</div>
</div>
<div class="swiper-slide overflow-hidden flex items-center md:items-start flex-col xl:flex-row-reverse xl:items-center min-h-[620px] md:min-h-fit xl:min-h-[565px] px-4 md:px-10 lg:px-[50px] py-8 lg:py-[50px] rounded-[12px] shadow-[0px_3px_12px_rgba(0,0,0,0.2)] dark:shadow-none border-gradient relative simplex-unique-card">
<div class="md:flex-1 flex items-center justify-center h-[55%] md:h-fit w-full card-image">
<img class="w-full max-w-[400px] dark:hidden" src="/img/new/unique-section-4.png" alt="">
<img class="w-full max-w-[400px] hidden dark:block" src="/img/new/unique-section-4-dark.png" alt="">
</div>
<div class="card-content absolute md:static px-4 md:px-0 bottom-[80px] right-1 left-1 h-[180px] md:h-fit pt-5 lg:pt-0 bg-primary-bg-light dark:bg-primary-bg-dark">
<div class="content-head">
<h1 class="text-[35px] lg:text-[65px] font-bold tracking-[0.06em] text-active-blue text-center md:text-left md:rtl:text-right">#4</h1>
<h3 class="w-full max-w-[617px] text-[25px] leading-[33px] lg:text-[35px] lg:leading-[45px] text-center md:text-left md:rtl:text-right font-bold text-grey-black dark:text-white">Jesteś właścicielem sieci SimpleX</h3>
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<p style="padding-bottom:6px;">
Sieć SimpleX jest w pełni zdecentralizowana i niezależna od jakiejkolwiek krypto-waluty lub jakiejkolwiek innej platformy, poza Internetem.
</p>
<p>
Możesz <strong>używać SimpleX z własnymi serwerami</strong> lub z serwerami dostarczonymi przez nas — i nadal łączyć się z dowolnym użytkownikiem.
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</section>
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<h1 class="text-3xl font-bold text-active-blue mb-6 ">Pełna prywatność Twojej tożsamości, profilu, kontaktów i metadanych</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">
<p>
W przeciwieństwie do innych platform komunikacyjnych, SimpleX ma <strong>brak identyfikatorów przypisanych do użytkowników</strong>. Nie polega na numerach telefonów, adresach opartych na domenie (jak e-mail lub XMPP), nazwach użytkowników, kluczach publicznych czy nawet losowych liczbach, aby zidentyfikować swoich użytkowników — nie wiemy, ile osób korzysta z naszych serwerów SimpleX.
</p>
<p>
Do dostarczania wiadomości SimpleX używa <a href="https://csrc.nist.gov/glossary/term/Pairwise_Pseudonymous_Identifier">parami anonimowych adresów</a> jednokierunkowych kolejek z wiadomościami, oddzielnych dla wiadomości odbieranych i wysyłanych, zwykle przez różne serwery. Korzystanie z SimpleX jest jak posiadanie <strong>wielu “jednorazowych” emailów lub osobnego telefonu dla każdego kontaktu</strong> i braku problemów z zarządzaniem nimi.
</p>
<p>
Taka konstrukcja chroni prywatność tego, z kim się komunikujesz, ukrywając ją przed serwerami platformy SimpleX i przed wszelkimi obserwatorami. Aby ukryć swój adres IP przed serwerami, możesz <strong>połączyć się z serwerami SimpleX za pośrednictwem sieci Tor</strong>.
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<h1 class="text-3xl font-bold text-active-blue mb-6 ">Najlepsza ochrona przed spamem i nadużyciami</h1>
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<p>
Ponieważ nie masz identyfikatora na platformie SimpleX, nikt nie może się z Tobą skontaktować, chyba że udostępnisz jednorazowy lub tymczasowy adres użytkownika, w postaci kodu QR lub linku.
</p>
<p>
Nawet w przypadku opcjonalnego adresu użytkownika, podczas gdy może on być używany do wysyłania spamowych zapytań o kontakt, możesz go zmienić lub całkowicie usunąć bez utraty jakichkolwiek połączeń.
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<h1 class="text-3xl font-bold text-active-blue mb-6 ">Własność, kontrola i bezpieczeństwo Twoich danych</h1>
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<p>
SimpleX Chat przechowuje wszystkie dane użytkowników tylko na urządzeniach klienckich przy użyciu <strong>przenośnego formatu zaszyfrowanej bazy danych</strong>, który można wyeksportować i przenieść na dowolne obsługiwane urządzenie.
</p>
<p>
Wiadomości zaszyfrowane end-to-end są przechowywane tymczasowo na serwerach przekaźnikowych SimpleX do momentu ich odebrania, po czym są trwale usuwane.
</p>
<p>
W przeciwieństwie do serwerów sieci federacyjnych (e-mail, XMPP czy Matrix), serwery SimpleX nie przechowują kont użytkowników, a jedynie przekazują wiadomości, chroniąc prywatność obu stron.
</p>
<p>
Nie ma żadnych identyfikatorów ani szyfrogramów wspólnych między wysyłanym i odbieranym ruchem serwera — jeśli ktokolwiek to obserwuje, nie może łatwo określić, kto komunikuje się z kim, nawet jeśli bezpieczeństwo protokołu TLS zostało zagrożone.
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<h1 class="text-3xl font-bold text-active-blue mb-6 ">W pełni zdecentralizowana — użytkownicy są właścicielami sieci SimpleX</h1>
<div class="flex flex-col-reverse lg:flex-row gap-10 justify-between">
<div class="lg:max-w-[448px]">
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<p>
Możesz <strong>używać SimpleX z własnymi serwerami</strong> i nadal komunikować się z osobami, które korzystają z dostarczonych przez nas prekonfigurowanych serwerów.
</p>
<p>
Platforma SimpleX wykorzystuje <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md" target="_blank">otwarty protokół</a> i udostępnia <a href="https://github.com/simplex-chat/simplex-chat/tree/stable/packages/simplex-chat-client/typescript" target="_blank">SDK do tworzenia chatbotów</a>, umożliwiając implementację usług, z którymi użytkownicy mogą wchodzić w interakcje za pośrednictwem aplikacji SimpleX Chat — naprawdę' nie możemy się doczekać, aby zobaczyć, jakie usługi SimpleX możesz zbudować.
</p>
<p>
Jeśli rozważasz rozwój dla platformy SimpleX, na przykład czatbotu dla użytkowników aplikacji SimpleX lub integrację biblioteki SimpleX Chat w swoich aplikacjach mobilnych, prosimy o <a href="https://simplex.chat/contact#/?v=1&amp;smp=smp%3A%2F%2FPQUV2eL0t7OStZOoAsPEV2QYWt4-xilbakvGUGOItUo%3D%40smp6.simplex.im%2FK1rslx-m5bpXVIdMZg9NLUZ_8JBm8xTt%23MCowBQYDK2VuAyEALDeVe-sG8mRY22LsXlPgiwTNs9dbiLrNuA7f3ZMAJ2w%3D" target="_blank">kontakt</a> dla wszelkich porad i wsparcia.
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<p class="text-grey-black dark:text-white text-[16px] font-medium text-center w-full max-w-[265px]">Wiadomości szyfrowane przez E2E ze składnią markdown i edycją</p>
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<p class="text-grey-black dark:text-white text-[16px] font-medium text-center w-full max-w-[265px]">Obrazy i pliki<br>zaszyfrowane przez E2E</p>
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<p class="text-grey-black dark:text-white text-[16px] font-medium text-center w-full max-w-[265px]">Zdecentralizowane tajne grupy —<br>tylko użytkownicy wiedzą, że te grupy istnieją</p>
</div>
<div class="flex flex-col items-center">
<div class="bg-white flex items-center justify-center w-[175px] h-[110px] rounded-[20px] border-[#859096] border-solid border-[1px] shadow-[2px_2px_0px_#859096] dark:border-none dark:shadow-none mb-[20px] border-gradient">
<img src="/img/new/feature-4.svg" alt="" class="dark:hidden">
<img src="/img/new/feature-4-dark.svg" alt="" class="hidden dark:block">
</div>
<p class="text-grey-black dark:text-white text-[16px] font-medium text-center w-full max-w-[265px]">Wiadomości głosowe zaszyfrowane przez E2E</p>
</div>
<div class="flex flex-col items-center">
<div class="bg-white flex items-center justify-center w-[175px] h-[110px] rounded-[20px] border-[#859096] border-solid border-[1px] shadow-[2px_2px_0px_#859096] dark:border-none dark:shadow-none mb-[20px] border-gradient">
<img src="/img/new/feature-5.svg" alt="" class="dark:hidden">
<img src="/img/new/feature-5-dark.svg" alt="" class="hidden dark:block">
</div>
<p class="text-grey-black dark:text-white text-[16px] font-medium text-center w-full max-w-[265px]">Znikające wiadomości</p>
</div>
<div class="flex flex-col items-center">
<div class="bg-white flex items-center justify-center w-[175px] h-[110px] rounded-[20px] border-[#859096] border-solid border-[1px] shadow-[2px_2px_0px_#859096] dark:border-none dark:shadow-none mb-[20px] border-gradient">
<img src="/img/new/feature-6.svg" alt="" class="dark:hidden">
<img src="/img/new/feature-6-dark.svg" alt="" class="hidden dark:block">
</div>
<p class="text-grey-black dark:text-white text-[16px] font-medium text-center w-full max-w-[265px]">Połączenia audio i wideo<br>szyfrowane przez E2E</p>
</div>
<div class="flex flex-col items-center">
<div class="bg-white flex items-center justify-center w-[175px] h-[110px] rounded-[20px] border-[#859096] border-solid border-[1px] shadow-[2px_2px_0px_#859096] dark:border-none dark:shadow-none mb-[20px] border-gradient">
<img src="/img/new/feature-7.svg" alt="" class="dark:hidden">
<img src="/img/new/feature-7-dark.svg" alt="" class="hidden dark:block">
</div>
<p class="text-grey-black dark:text-white text-[16px] font-medium text-center w-full max-w-[265px]">Przenośna zaszyfrowana baza danych — przenieś swój profil na inne urządzenie</p>
</div>
<div class="flex flex-col items-center">
<div class="bg-white flex items-center justify-center w-[175px] h-[110px] rounded-[20px] border-[#859096] border-solid border-[1px] shadow-[2px_2px_0px_#859096] dark:border-none dark:shadow-none mb-[20px] border-gradient">
<img src="/img/new/feature-8.svg" alt="" class="dark:hidden">
<img src="/img/new/feature-8-dark.svg" alt="" class="hidden dark:block">
</div>
<p class="text-grey-black dark:text-white text-[16px] font-medium text-center w-full max-w-[265px]">Tryb incognito —<br>unikalny dla SimpleX Chat</p>
</div>
</div>
</div>
</section>
<section id="privacy" class="bg-primary-bg-light dark:bg-primary-bg-dark py-[90px] overflow-hidden px-5 lg:h-[888px]">
<div class="container scale-100">
<h2 class="text-grey-black dark:text-white text-[35px] leading-[45px] md:leading-[55px] lg:text-[45px] text-center font-bold mb-20">Co sprawia, że SimpleX jest<span class="gradient-text">prywatny</span></h2>
<div class="swiper private-swiper overflow-hidden px-4 py-2">
<div class="swiper-wrapper mb-16">
<div class="card swiper-slide relative h-[480px] rounded-[20px] bg-card-bg-light dark:bg-card-bg-dark border-[#859096] border-solid border-[1px] dark:border-none shadow-[2px_2px_0px_#859096] dark:shadow-none overflow-hidden">
<div class="flex items-center justify-center py-12 px-6 h-[322px]">
<img class="w-full max-w-[223px] h-full max-h-[226px] dark:hidden" src="/img/new/private-10.svg" alt="">
<img class="w-full max-w-[223px] h-full max-h-[226px] hidden dark:block" src="/img/new/private-10-dark.svg" alt="">
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<div class="card-content flex flex-col items-center justify-between h-[138px] absolute bottom-0 py-6 px-6 bg-card-desc-bg-light dark:bg-card-desc-bg-dark rounded-b-[20px]">
<h3 class="text-grey-black dark:text-white text-[18px] my-4 font-bold leading-[26px] tracking-[0.01em] text-center">Tymczasowe anonimowe identyfikatory parami</h3>
<div class="flex-1 py-3 flex flex-col gap-3">
<p class="text-grey-black dark:text-white text-[14px] text-center">SimpleX używa tymczasowych anonimowych adresów par i poświadczeń dla każdego kontaktu użytkownika lub członka grupy.</p>
<p class="text-grey-black dark:text-white text-[14px] text-center">Pozwala na dostarczanie wiadomości bez identyfikatorów profilu użytkownika, zapewniając lepszą prywatność metadanych niż rozwiązania alternatywne.</p>
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<div class="flex items-center justify-center py-12 px-6 h-[322px]">
<img class="w-full max-w-[223px] h-full max-h-[226px] dark:hidden" src="/img/new/private-6.svg" alt="">
<img class="w-full max-w-[223px] h-full max-h-[226px] hidden dark:block" src="/img/new/private-6-dark.svg" alt="">
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<div class="card-content flex flex-col items-center justify-between h-[138px] absolute bottom-0 py-6 px-6 bg-card-desc-bg-light dark:bg-card-desc-bg-dark rounded-b-[20px]">
<h3 class="text-grey-black dark:text-white text-[18px] my-4 font-bold leading-[26px] tracking-[0.01em] text-center">Wymiana kluczy<br> out-of-band</h3>
<div class="flex-1 py-3 flex flex-col gap-3">
<p class="text-grey-black dark:text-white text-[14px] text-center">Wiele platform komunikacyjnych jest podatnych na ataki MITM ze strony serwerów lub dostawców sieci.</p>
<p class="text-grey-black dark:text-white text-[14px] text-center">Aby temu zapobiec aplikacje SimpleX przekazują klucze jednorazowe out-of-band, gdy udostępniasz adres jako link lub kod QR.</p>
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<div class="flex items-center justify-center py-12 px-6 h-[322px]">
<img class="w-full max-w-[223px] h-full max-h-[226px] dark:hidden" src="/img/new/private-1.svg" alt="">
<img class="w-full max-w-[223px] h-full max-h-[226px] hidden dark:block" src="/img/new/private-1-dark.svg" alt="">
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<div class="card-content flex flex-col items-center justify-between h-[138px] absolute bottom-0 py-6 px-6 bg-card-desc-bg-light dark:bg-card-desc-bg-dark rounded-b-[20px]">
<h3 class="text-grey-black dark:text-white text-[18px] my-4 font-bold leading-[26px] tracking-[0.01em] text-center">Dwie warstwy<br>szyfrowania typu end-to-end</h3>
<div class="flex-1 py-3 flex flex-col gap-3">
<p class="text-grey-black dark:text-white text-[14px] text-center">Protokół double-ratchet —<br>OTR messaging z perfect <span data-glossary="tooltip-forward-secrecy" class="glossary-term">Forward secrecy</span> i <span data-glossary="tooltip-break-in-recovery" class="glossary-term">Break-in recovery</span>.</p>
<p class="text-grey-black dark:text-white text-[14px] text-center">NaCL cryptobox w każdej kolejce, aby zapobiec korelacji ruchu między kolejkami wiadomości, jeśli bezpieczeństwo protokołu TLS zostanie naruszone.</p>
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<div class="flex items-center justify-center py-12 px-6 h-[322px]">
<img class="w-full max-w-[223px] h-full max-h-[226px] dark:hidden" src="/img/new/private-7.svg" alt="">
<img class="w-full max-w-[223px] h-full max-h-[226px] hidden dark:block" src="/img/new/private-7-dark.svg" alt="">
</div>
<div class="card-content flex flex-col items-center justify-between h-[138px] absolute bottom-0 py-6 px-6 bg-card-desc-bg-light dark:bg-card-desc-bg-dark rounded-b-[20px]">
<h3 class="text-grey-black dark:text-white text-[18px] my-4 font-bold leading-[26px] tracking-[0.01em] text-center">Weryfikacja<br>integralności wiadomości</h3>
<div class="flex-1 py-3 flex flex-col gap-3">
<p class="text-grey-black dark:text-white text-[14px] text-center">Aby zagwarantować integralność, wiadomości są kolejno numerowane i zawierają hash poprzedniej wiadomości.</p>
<p class="text-grey-black dark:text-white text-[14px] text-center">Jeśli jakaś wiadomość zostanie dodana, usunięta lub zmieniona, odbiorca zostanie o tym powiadomiony.</p>
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<div class="flex items-center justify-center py-12 px-6 h-[322px]">
<img class="w-full max-w-[223px] h-full max-h-[226px] dark:hidden" src="/img/new/private-2.svg" alt="">
<img class="w-full max-w-[223px] h-full max-h-[226px] hidden dark:block" src="/img/new/private-2-dark.svg" alt="">
</div>
<div class="card-content flex flex-col items-center justify-between h-[138px] absolute bottom-0 py-6 px-6 bg-card-desc-bg-light dark:bg-card-desc-bg-dark rounded-b-[20px]">
<h3 class="text-grey-black dark:text-white text-[18px] my-4 font-bold leading-[26px] tracking-[0.01em] text-center">Dodatkowa warstwa<br>szyfrowania serwera</h3>
<div class="flex-1 py-3 flex flex-col gap-3">
<p class="text-grey-black dark:text-white text-[14px] text-center">Dodatkowa warstwa szyfrowania serwera w celu dostarczenia do odbiorcy, aby zapobiec korelacji między odebranym i wysłanym ruchem serwera, jeśli bezpieczeństwo protokołu TLS zostanie naruszone.</p>
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<div class="flex items-center justify-center py-12 px-6 h-[322px]">
<img class="w-full max-w-[223px] h-full max-h-[226px] dark:hidden" src="/img/new/private-8.svg" alt="">
<img class="w-full max-w-[223px] h-full max-h-[226px] hidden dark:block" src="/img/new/private-8-dark.svg" alt="">
</div>
<div class="card-content flex flex-col items-center justify-between h-[138px] absolute bottom-0 py-6 px-6 bg-card-desc-bg-light dark:bg-card-desc-bg-dark rounded-b-[20px]">
<h3 class="text-grey-black dark:text-white text-[18px] my-4 font-bold leading-[26px] tracking-[0.01em] text-center">Mieszanie wiadomości<br>w celu zmniejszenia korelacji</h3>
<div class="flex-1 py-3 flex flex-col gap-3">
<p class="text-grey-black dark:text-white text-[14px] text-center">Serwery SimpleX działają jak węzły mieszania o niskim opóźnieniu — wiadomości przychodzące i wychodzące mają inną kolejność.</p>
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<div class="flex items-center justify-center py-12 px-6 h-[322px]">
<img class="w-full max-w-[223px] h-full max-h-[226px] dark:hidden" src="/img/new/private-3.svg" alt="">
<img class="w-full max-w-[223px] h-full max-h-[226px] hidden dark:block" src="/img/new/private-3-dark.svg" alt="">
</div>
<div class="card-content flex flex-col items-center justify-between h-[138px] absolute bottom-0 py-6 px-6 bg-card-desc-bg-light dark:bg-card-desc-bg-dark rounded-b-[20px]">
<h3 class="text-grey-black dark:text-white text-[18px] my-4 font-bold leading-[26px] tracking-[0.01em] text-center">Bezpieczny uwierzytelniony<br>transport TLS</h3>
<div class="flex-1 py-3 flex flex-col gap-3">
<p class="text-grey-black dark:text-white text-[14px] text-center">Do połączeń klient-serwer używany jest tylko TLS 1.2/1.3 z silnymi algorytmami.</p>
<p class="text-grey-black dark:text-white text-[14px] text-center">Odcisk palca serwera i wiązanie kanałów zapobiegają atakom MITM i replay.</p>
<p class="text-grey-black dark:text-white text-[14px] text-center">Wznowienie połączenia jest wyłączone, aby zapobiec atakom na sesje.</p>
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<div class="flex items-center justify-center py-12 px-6 h-[322px]">
<img class="w-full max-w-[223px] h-full max-h-[226px] dark:hidden" src="/img/new/private-4.svg" alt="">
<img class="w-full max-w-[223px] h-full max-h-[226px] hidden dark:block" src="/img/new/private-4-dark.svg" alt="">
</div>
<div class="card-content flex flex-col items-center justify-between h-[138px] absolute bottom-0 py-6 px-6 bg-card-desc-bg-light dark:bg-card-desc-bg-dark rounded-b-[20px]">
<h3 class="text-grey-black dark:text-white text-[18px] my-4 font-bold leading-[26px] tracking-[0.01em] text-center">Możliwy<br>dostęp za pośrednictwem sieci Tor</h3>
<div class="flex-1 py-3 flex flex-col gap-3">
<p class="text-grey-black dark:text-white text-[14px] text-center">Aby chronić swój adres IP, możesz uzyskać dostęp do serwerów przez Tor lub inną sieć nakładki transportowej.</p>
<p class="text-grey-black dark:text-white text-[14px] text-center">Aby użyć SimpleX przez Tor zainstaluj <a href="https://guardianproject.info/apps/org.torproject.android/" target="_blank">aplikację Orbot na android</a> i włącz proxy SOCKS5 (lub VPN <a href="https://apps.apple.com/us/app/orbot/id1609461599?platform=iphone" target="_blank">na iOS</a>).</p>
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<div class="flex items-center justify-center py-12 px-6 h-[322px]">
<img class="w-full max-w-[223px] h-full max-h-[226px] dark:hidden" src="/img/new/private-9.svg" alt="">
<img class="w-full max-w-[223px] h-full max-h-[226px] hidden dark:block" src="/img/new/private-9-dark.svg" alt="">
</div>
<div class="card-content flex flex-col items-center justify-between h-[138px] absolute bottom-0 py-6 px-6 bg-card-desc-bg-light dark:bg-card-desc-bg-dark rounded-b-[20px]">
<h3 class="text-grey-black dark:text-white text-[18px] my-4 font-bold leading-[26px] tracking-[0.01em] text-center">Jednokierunkowe<br>kolejki wiadomości</h3>
<div class="flex-1 py-3 flex flex-col gap-3">
<p class="text-grey-black dark:text-white text-[14px] text-center">Każda kolejka z wiadomościami przekazuje wiadomości w jednym kierunku, z różnymi adresami wysyłania i odbierania.</p>
<p class="text-grey-black dark:text-white text-[14px] text-center">Zmniejsza wektory ataku, w porównaniu do tradycyjnych brokerów wiadomości, oraz dostępne metadane.</p>
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<div class="flex items-center justify-center py-12 px-6 h-[322px]">
<img class="w-full max-w-[223px] h-full max-h-[226px] dark:hidden" src="/img/new/private-5.svg" alt="">
<img class="w-full max-w-[223px] h-full max-h-[226px] hidden dark:block" src="/img/new/private-5-dark.svg" alt="">
</div>
<div class="card-content flex flex-col items-center justify-between h-[138px] absolute bottom-0 py-6 px-6 bg-card-desc-bg-light dark:bg-card-desc-bg-dark rounded-b-[20px]">
<h3 class="text-grey-black dark:text-white text-[18px] my-4 font-bold leading-[26px] tracking-[0.01em] text-center">Wielowarstwowy<br>padding treści</h3>
<div class="flex-1 py-3 flex flex-col gap-3">
<p class="text-grey-black dark:text-white text-[14px] text-center">SimpleX używa paddingu treści dla każdej warstwy szyfrowania, aby udaremnić ataki na rozmiar wiadomości.</p>
<p class="text-grey-black dark:text-white text-[14px] text-center">Dzięki temu wiadomości o różnych rozmiarach wyglądają tak samo dla serwerów i obserwatorów sieci.</p>
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</div>
<img class="fixed left-[-3px] top-[52%] swiper-button-prev private-swiper-button-prev md:inline-block rtl:!hidden dark:!hidden" src="/img/new/arrow-left.svg" alt="">
<img class="fixed right-[-6px] top-[52%] swiper-button-next private-swiper-button-next md:inline-block rtl:!hidden dark:!hidden" src="/img/new/arrow-right.svg" alt="">
<img class="fixed left-[-3px] top-[52%] swiper-button-prev private-swiper-button-prev hidden dark:md:inline-block rtl:!hidden" src="/img/new/arrow-left-dark.svg" alt="">
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<img class="fixed left-[-3px] top-[52%] swiper-button-next private-swiper-button-next md:rtl:inline-block ltr:!hidden dark:!hidden" src="/img/new/arrow-left.svg" alt="">
<img class="fixed right-[-6px] top-[52%] swiper-button-prev private-swiper-button-prev md:rtl:inline-block ltr:!hidden dark:!hidden" src="/img/new/arrow-right.svg" alt="">
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<img class="fixed right-[-6px] top-[52%] swiper-button-prev private-swiper-button-prev hidden md:dark:inline-block ltr:!hidden" src="/img/new/arrow-right-dark.svg" alt="">
<div class="swiper-scrollbar dark:bg-grey-black dark:bg-opacity-[0.2]"></div>
</div>
</div>
</section>
<section id="network" class="bg-secondary-bg-light dark:bg-secondary-bg-dark lg:h-[642px] py-[95px] px-5">
<div class="container">
<h2 class="text-grey-black dark:text-white text-[35px] leading-[45px] md:leading-[55px] lg:text-[45px] text-center font-bold mb-5">SimpleX <span class="gradient-text">Sieć</span></h2>
<p class="text-black dark:text-white text-[16px] font-normal text-center mb-16">Simplex Chat zapewnia najlepszą prywatność dzięki połączeniu zalet sieci P2P i sieci federacyjnych.</p>
<div class="flex flex-col lg:flex-row justify-between gap-12 md:gap-14 lg:gap-16">
<div class="flex flex-col md:flex-row lg:flex-col items-center md:gap-9 lg:gap-0">
<div class="mb-4 md:mb-0 lg:mb-8 md:flex-[1] flex items-center justify-center">
<img src="/img/new/network-1.svg" alt="" class="dark:hidden">
<img src="/img/new/network-1-dark.svg" alt="" class="hidden dark:block">
</div>
<div class="md:flex-[2] flex flex-col items-center justify-center">
<h3 class="text-active-blue text-xl font-bold text-center md:text-left lg:text-center self-stretch">W przeciwieństwie do sieci P2P</h3>
<p class="text-black dark:text-white text-base font-normal text-center md:text-left lg:text-center">
Wszystkie wiadomości są wysyłane przez serwery, co zapewnia lepszą prywatność metadanych i niezawodne asynchroniczne dostarczanie wiadomości, przy jednoczesnym unikaniu wielu <a href="javascript:void(0)" data-show-overlay="comparison-with-p2p-protocols" class="open-overlay-btn">problemów sieci P2P</a>.
</p><div id="comparison-with-p2p-protocols" data-scroll-to="network" 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]">
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<h1 class="text-3xl font-bold text-active-blue mb-6 ">Porównanie z protokołami komunikacyjnymi P2P</h1>
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<a href="https://en.wikipedia.org/wiki/Peer-to-peer">P2P</a> protokoły i aplikacje do przesyłania wiadomości mają różne problemy, które czynią je mniej niezawodnymi niż SimpleX, bardziej skomplikowanymi w analizie i podatnymi na kilka rodzajów ataków.
</p>
<ol style="list-style: auto; padding-left: 1em;">
<li>
Sieci P2P opierają się na pewnym wariancie <a href="https://en.wikipedia.org/wiki/Distributed_hash_table">DHT</a> do przekazywania wiadomości. DHT muszą równoważyć gwarancję dostarczenia i opóźnienie. SimpleX ma zarówno lepszą gwarancję dostarczenia, jak i mniejsze opóźnienia niż P2P, ponieważ wiadomość może być nadmiarowo przepuszczona przez kilka serwerów równolegle, z wykorzystaniem serwerów wybranych przez odbiorcę. W sieciach P2P wiadomość jest przepuszczana przez , <em>O(log N)</em> węzłów sekwencyjnie, z wykorzystaniem węzłów wybranych przez algorytm.
</li>
<li>
Projekt SimpleX, w przeciwieństwie do większości sieci P2P, nie posiada żadnych globalnych identyfikatorów użytkowników, nawet tymczasowych, a jedynie używa tymczasowych identyfikatorów parami, zapewniając lepszą anonimowość i ochronę metadanych.
</li>
<li>
P2P nie rozwiązuje <a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">ataku MITM</a> problemu, a większość istniejących implementacji nie używa wiadomości out-of-band do początkowej wymiany klucza. SimpleX używa wiadomości out-of-band lub, w niektórych przypadkach, wcześniej istniejących bezpiecznych i zaufanych połączeń do początkowej wymiany klucza.
</li>
<li>
Implementacje P2P mogą być blokowane przez niektórych dostawców Internetu (np. <a href="https://en.wikipedia.org/wiki/BitTorrent">BitTorrent</a>). SimpleX jest agnostykiem transportowym - może działać przez standardowe protokoły internetowe, np. WebSockets.
</li>
<li>
Wszystkie znane sieci P2P mogą być podatne na <a href="https://en.wikipedia.org/wiki/Sybil_attack">atak Sybil</a>, ponieważ każdy węzeł jest możliwy do odkrycia, a sieć działa jako całość. Znane środki łagodzące wymagają albo scentralizowanego komponentu, albo kosztownego <a href="https://en.wikipedia.org/wiki/Proof_of_work">proof of work</a>. SimpleX nie ma możliwości odkrywania serwerów, jest pofragmentowana i działa jako wiele odizolowanych podsieci, co uniemożliwia ataki na całą sieć.
</li>
<li>
Sieci P2P mogą być podatne na atak <a href="https://www.usenix.org/conference/woot15/workshop-program/presentation/p2p-file-sharing-hell-exploiting-bittorrent">DRDoS</a>, kiedy klienci mogą rozgłaszać i wzmacniać ruch, co powoduje odmowę usługi w całej sieci. Klienci SimpleX przekazują jedynie ruch ze znanego połączenia i nie mogą być wykorzystani przez atakującego do wzmocnienia ruchu w całej sieci.
</li>
</ol>
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<h3 class="text-active-blue text-xl font-bold text-center md:text-left lg:text-center self-stretch">W przeciwieństwie do sieci federacyjnych</h3>
<p class="text-black dark:text-white text-base font-normal text-center md:text-left lg:text-center">
Serwery przekaźnikowe SimpleX NIE przechowują profili użytkowników, kontaktów i dostarczonych wiadomości, NIE łączą się ze sobą i NIE ma katalogu serwerów.
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<h3 class="text-active-blue text-xl font-bold text-center md:text-left lg:text-center self-stretch">Sieć SimpleX</h3>
<p class="text-black dark:text-white text-base font-normal text-center md:text-left lg:text-center">
serwerów zapewniają <span class="text-active-blue">jednokierunkowe kolejki</span> do łączenia użytkowników, ale nie mają wglądu w wykres połączeń sieciowych — robią to tylko użytkownicy.
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<h2 class="text-[35px] leading-[45px] md:leading-[55px] lg:text-[38px] text-center font-bold text-grey-black dark:text-white mb-9">Objaśnienie SimpleX</h2>
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<div data-btn-index="0" class="flex-1 tab-button tab-1 p-2 text-[20px] text-center font-bold cursor-pointer active">1. Jakie są doświadczenia użytkowników</div>
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Można tworzyć kontakty i grupy oraz prowadzić dwukierunkowe rozmowy, jak w każdym innym komunikatorze.
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<p class="text-black dark:text-white text-[16px] font-normal text-center">
Jak może to działać z jednokierunkowymi kolejkami i bez identyfikatorów profili użytkowników?
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Dla każdego połączenia używasz dwóch oddzielnych kolejek z wiadomościami do wysyłania i odbierania wiadomości przez różne serwery.
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Serwery przekazują wiadomości tylko w jedną stronę, nie mając pełnego obrazu konwersacji i połączeń użytkownika.
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<div class="tab-button p-2 text-[20px] text-center font-bold active md:hidden">3. Co widzą serwery</div>
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Serwery mają osobne anonimowe poświadczenia dla każdej kolejki i nie wiedzą do jakich użytkowników one należą.
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<p class="text-black dark:text-white text-[16px] font-normal text-center">
Użytkownicy mogą jeszcze bardziej zwiększyć prywatność metadanych, używając Tor do uzyskania dostępu do serwerów, co zapobiega korelacji na podstawie adresu IP.
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<section id="comparison" class="bg-secondary-bg-light dark:bg-secondary-bg-dark lg:h-[950px] py-[90px] px-5">
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<h2 class="text-[35px] leading-[43px] md:leading-[55px] lg:leading-[36px] text-center font-bold mb-12 lg:mb-[90px]">Porównanie z innymi protokołami</h2>
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<th></th>
<th class="flex items-center justify-center pb-4">
<img class="h-[34px] dark:hidden" alt="simplex logo" src="/img/new/logo-light.png">
<img class="h-[34px] hidden dark:block" alt="simplex logo" src="/img/new/logo-dark.png">
</th>
<th class="pb-4">Signal, duże platformy</th>
<th class="pb-4">XMPP, Matrix</th>
<th class="pb-4">Protokoły sieci P2P</th>
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</thead>
<tbody>
<tr>
<td class="min-w-[210px]">Wymaga globalnej tożsamości</td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#48F6C2] text-grey-black rounded-[4px]">Nie - prywatne</td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#fff] dark:bg-[#171F3A] text-[#DD0000] rounded-[4px]">Tak <sup>1</sup></td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#fff] dark:bg-[#171F3A] text-[#DD0000] rounded-[4px]">Tak <sup>2</sup></td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#fff] dark:bg-[#171F3A] text-[#DD0000] rounded-[4px]">Tak <sup>3</sup></td>
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<td class="min-w-[210px]">Możliwość ataku MITM</td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#48F6C2] text-grey-black rounded-[4px]">Nie - bezpieczny</td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#fff] dark:bg-[#171F3A] text-[#DD0000] rounded-[4px]">Tak <sup>4</sup></td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#fff] dark:bg-[#171F3A] text-[#DD0000] rounded-[4px]">Tak</td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#fff] dark:bg-[#171F3A] text-[#DD0000] rounded-[4px]">Tak</td>
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<td class="min-w-[210px]">Zależność od DNS</td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#48F6C2] text-grey-black rounded-[4px]">Nie - odporny</td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#fff] dark:bg-[#171F3A] text-[#DD0000] rounded-[4px]">Tak</td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#fff] dark:bg-[#171F3A] text-[#DD0000] rounded-[4px]">Tak</td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#48F6C2] text-grey-black rounded-[4px]">Nie</td>
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<td class="min-w-[210px]">Sieć pojedyncza lub scentralizowana</td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#48F6C2] text-grey-black rounded-[4px]">Nie - zdecentralizowany</td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#fff] dark:bg-[#171F3A] text-[#DD0000] rounded-[4px]">Tak</td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#48F6C2] text-grey-black rounded-[4px]">Nie - sfederowany <sup>5</sup></td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#fff] dark:bg-[#171F3A] text-[#DD0000] rounded-[4px]">Tak <sup>6</sup></td>
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<td class="min-w-[210px]">Centralny komponent lub inny atak w całej sieci</td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#48F6C2] text-grey-black rounded-[4px]">Nie - odporny</td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#fff] dark:bg-[#171F3A] text-[#DD0000] rounded-[4px]">Tak</td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#fff] dark:bg-[#171F3A] text-[#DD0000] rounded-[4px]">Tak <sup>2</sup></td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#fff] dark:bg-[#171F3A] text-[#DD0000] rounded-[4px]">Tak <sup>7</sup></td>
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<div class="px-5">
<ol class="text-sm lg:text-base font-medium leading-6 list-decimal list-inside">
<li> Zazwyczaj na podstawie numeru telefonu, w niektórych przypadkach na podstawie nazwy użytkownika</li>
<li> Adresy oparte na DNS</li>
<li> Klucz publiczny lub inny globalnie unikalny identyfikator (ID)</li>
<li> Jeśli bezpieczeństwo serwerów operatora zostało naruszone</li>
<li> Nie chroni metadanych użytkowników</li>
<li> Podczas gdy sieci P2P są rozproszone, nie są sfederowane - działają jako jedna sieć</li>
<li> Sieci P2P albo mają centralny organ, albo cała sieć może zostać skompromitowana - <a class="underline text-primary-light dark:text-primary-dark underline-offset-2" href="https://github.com/simplex-chat/simplex-chat/blob/stable/docs/SIMPLEX.md#comparison-with-p2p-messaging-protocols">zobacz tutaj</a></li>
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<h2 class="text-[38px] leading-[36px] md:leading-[55px] text-grey-black dark:text-white text-center font-bold mb-5"><span class="text-active-blue">Dołącz do</span> SimpleX</h2>
<p class="text-black dark:text-white text-base text-center mb-14">Zapraszamy do udziału w rozmowie</p>
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<a href="https://www.reddit.com/r/SimpleXChat/" class="flex items-center justify-center h-11 w-full max-w-[294px] font-medium text-base rounded-[34px] tracking-[0.02em] text-primary-light dark:text-primary-dark dark:bg-primary-bg-dark dark:border-primary-dark dark:border bg-[#D9ECFF]">Dołącz do społeczności REDDIT</a>
<a href="https://github.com/simplex-chat" class="flex items-center justify-center h-11 w-full max-w-[294px] font-medium text-base rounded-[34px] tracking-[0.02em] text-primary-light dark:text-primary-dark dark:bg-primary-bg-dark dark:border-primary-dark dark:border bg-[#D9ECFF]">Dołącz do nas na GitHubie</a>
<a href="https://github.com/simplex-chat/simplex-chat#help-us-with-donations" class="flex items-center justify-center h-11 w-full max-w-[294px] font-medium text-base rounded-[34px] tracking-[0.02em] text-primary-light dark:text-primary-dark dark:border-none bg-white dark:bg-[rgba(112,240,249,0.2)] border border-[#0053D0]">Przekaż darowiznę tutaj, aby nam pomóc</a>
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<input name="EMAIL" type="text" class="h-[44px] ltr:rounded-l-[34px] rtl:rounded-r-[34px] bg-transparent border border-primary-light focus:outline-none text-primary-light dark:text-primary-dark text-base w-full max-w-[400px] px-5 placeholder:text-grey-black placeholder:dark:text-white placeholder:text-base placeholder:font-normal placeholder:tracking-[0.01em]" placeholder="Wpisz swój adres e-mail">
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</span>
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<p class="text-grey-black dark:text-white text-center mb-7">Pobierz SimpleX</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" title="Public iOS preview on TestFlight"><img class="h-[40px] w-auto" src="/img/new/google_play.svg"></a>
<a href="https://app.simplex.chat" target="_blank" title="SimpleX F-Droid Repository"><img class="h-[40px] w-auto" src="/img/new/f_droid.svg"></a>
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</div>
</section><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="tooltip-break-in-recovery" class="glossary-tooltip"><div class="tooltip-content"><h4 class="tooltip-title">Break-in recovery</h4><p>Also known as break-in recovery, it is 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></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>Also known as break-in recovery, it is 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>Also known as break-in recovery, it is 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.</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-forward-secrecy" class="glossary-tooltip"><div class="tooltip-content"><h4 class="tooltip-title">Forward secrecy</h4><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><button class="read-more-btn open-overlay-btn" data-show-overlay="forward-secrecy">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.</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="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></div><svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg"><path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 0.771991 12.8188 0.505331C12.5718 0.238674 12.1602 0.227644 11.8999 0.480681L6.65343 5.58028L1.09979 0.182228C0.805 0.002228 0.430001 0.002228 0.135211 0.182228C-0.159579 0.362228 -0.159579 0.697228 0.135211 0.877228L5.68885 6.27528L0.4918 11.3295C0.231501 11.5825 0.220703 12.0042 0.467664 12.2709C0.714625 12.5376 1.12625 12.5486 1.38655 12.2956L6.63302 7.196L12.1867 12.5941C12.4815 12.7741 12.8565 12.7741 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 2023 there is no system or algorithm that is proven 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 cryptographic systems in combination with the traditional cryptographic systems.</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>Also known as break-in recovery, it is 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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