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simplex-chat/nl/index.html
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<!DOCTYPE html>
<html lang="nl"
dir="ltr"
>
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>SimpleX 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="/nl" 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="/nl" 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="/nl" 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="/nl" 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="/nl" 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">Begin pagina</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">Gids</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">Snel aan de slag</a></li>
<li><a href="/docs/guide/send-messages.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Berichten versturen</a></li>
<li><a href="/docs/guide/secret-groups.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Geheime groepen</a></li>
<li><a href="/docs/guide/chat-profiles.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Chat profielen</a></li>
<li><a href="/docs/guide/managing-data.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Gegevens beheren</a></li>
<li><a href="/docs/guide/audio-video-calls.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Audio en video gesprekken</a></li>
<li><a href="/docs/guide/privacy-security.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Privacy en beveiliging</a></li>
<li><a href="/docs/guide/app-settings.html" class=" lg:px-[20px] inline-block whitespace-nowrap">App instellingen</a></li>
<li><a href="/docs/guide/making-connections.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Connecties maken</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">Referentie</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"
>SMP protocol
<svg class="float-right" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg>
</a></li>
<li><a href="/docs/protocol/simplex-chat.html" class="lg:px-[20px] inline-block"
>Chat protocol</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">SimpleX platform</a></li>
<li><a href="/docs/android.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Toegang tot Android bestanden</a></li>
<li><a href="/docs/sql.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Toegang tot de chatdatabase</a></li>
<li><a href="/docs/server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Host SMP Server</a></li>
<li><a href="/docs/xftp-server.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Host XFTP Server</a></li>
<li><a href="/docs/webrtc.html" class=" lg:px-[20px] inline-block whitespace-nowrap">WebRTC servers</a></li>
<li><a href="/docs/translations.html" class=" lg:px-[20px] inline-block whitespace-nowrap">Vertaal 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"
>Chatbot voorbeeld
<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"
>Doneer
</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/nl.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');
}
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">
<div class="">
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<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">Privacy opnieuw gedefinieerd</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]">De eerste messenger<br>zonder gebruikers ID's</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">
Andere apps hebben gebruikers ID's: Signal, Matrix, Session, Briar, Jami, Cwtch, enz.<br> SimpleX niet, <strong>zelfs geen willekeurige getallen</strong>.<br> Dit verbetert uw privacy.
</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">Waarom zijn gebruikers ID's slecht voor de privacy?</a>
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<h1 class="text-3xl font-bold text-active-blue mb-6 ">Waarom zijn gebruikers ID's slecht voor de privacy?</h1>
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<p>
Wanneer gebruikers een blijvende identiteit hebben, zelfs als dit slechts een willekeurig nummer is, zoals een sessie ID, bestaat het risico dat de provider of een aanvaller kan zien hoe de gebruikers zijn verbonden en hoeveel berichten ze verzenden.
</p>
<p>
Ze zouden deze informatie vervolgens kunnen correleren met de bestaande openbare sociale netwerken en een aantal echte identiteiten kunnen bepalen.
</p>
<p>
Zelfs met de meest privé apps die Tor v3-services gebruiken, als je met twee verschillende contacten via hetzelfde profiel praat, kunnen ze bewijzen dat ze met dezelfde persoon verbonden zijn.
</p>
<p>
SimpleX beschermt tegen deze aanvallen door geen gebruikers ID's in het ontwerp te hebben. En als u de incognitomodus gebruikt, heeft u voor elk contact een andere weergavenaam, waardoor gedeelde gegevens tussen hen worden vermeden.
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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">Hoe werkt SimpleX?</a>
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<h1 class="text-3xl font-bold text-active-blue mb-6 ">Hoe werkt SimpleX?</h1>
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<p>
Veel gebruikers vroegen: <em>als SimpleX geen gebruikers ID's heeft, hoe kan het dan weten waar berichten moeten worden afgeleverd?</em>
</p>
<p>
Om berichten te bezorgen, gebruikt SimpleX in plaats van gebruikers ID's die door alle andere platforms worden gebruikt, tijdelijke anonieme paarsgewijze identifiers van berichten wachtrijen, gescheiden voor elk van uw verbindingen — er zijn geen identificatiegegevens op lange termijn.
</p>
<p>
U definieert welke server(s) u wilt gebruiken om de berichten te ontvangen. Uw contacten de servers die u gebruikt om de berichten naar hen te verzenden. Elk gesprek gebruikt waarschijnlijk twee verschillende servers.
</p>
<p>
Dit ontwerp voorkomt het lekken van eventuele gebruikersgegevens en metadata op applicatie niveau. Om de privacy verder te verbeteren en uw IP-adres te beschermen kunt u via Tor verbinding maken met berichten servers.
</p>
<p>
Alleen client apparaten slaan gebruikers profielen, contacten en groepen op; de berichten worden verzonden met 2-laags end-to-end versleuteling.
</p>
<p>
Lees meer in <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md" target="_blank">SimpleX-whitepaper</a>.
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<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>
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<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">Verkrijg 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>
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<source src="/video/connect.mp4" type="video/mp4">
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<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]">
Maak een privé verbinding
</h2>
<p class="text-center text-black dark:text-white xl:text-justify leading-[24px] text-[16px] mb-10 xl:mb-[25px] header-description">
De video laat zien hoe je verbinding maakt met je vriend via een eenmalige QR-code, persoonlijk of via een videolink. U kunt ook verbinding maken door een uitnodigingslink te delen.
</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">Waarom SimpleX</a>
<a href="#features" class="menu-link">Functies</a>
<a href="#privacy" class="menu-link">SimpleX privacy</a>
<a href="#network" class="menu-link">SimpleX netwerk</a>
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</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]">
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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]">
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<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">Waarom privacy <span class="gradient-text"> belangrijk is </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">Behoud van de privacy van uw metadata — <span class="text-active-blue">met wie u praat</span> — beschermt u tegen:</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">
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<p class="font-medium text-xl text-center text-grey-black dark:text-white">Reclame en prijs discriminatie</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">Privacy bespaart u geld</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]">
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<h1 class="text-3xl font-bold text-active-blue mb-6 lg:max-w-[448px]">Privacy bespaart u geld</h1>
<div class="flex flex-col-reverse lg:flex-row gap-10 justify-between">
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<p>
Veel grote bedrijven gebruiken informatie over met wie u verbonden bent om uw inkomen te schatten, u de producten te verkopen die u niet echt nodig heeft en om de prijzen te bepalen.
</p>
<p>
Webwinkels weten dat mensen met lagere inkomens eerder geneigd zijn om dringende aankopen te doen, dus kunnen ze hogere prijzen vragen of kortingen intrekken.
</p>
<p>
Sommige financiële en verzekeringsmaatschappijen gebruiken sociale grafieken om rentetarieven en premies te bepalen. Het zorgt er vaak voor dat mensen met lagere inkomens meer betalen — het staat bekend als <a href="https://fairbydesign.com/povertypremium/" target="_blank">'armoedepremie'</a>.
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<p>
Het SimpleX platform beschermt de privacy van uw verbindingen beter dan welk alternatief dan ook, waardoor volledig wordt voorkomen dat uw sociale grafiek beschikbaar wordt voor bedrijven of organisaties. Zelfs wanneer mensen servers van SimpleX Chat gebruiken, weten we niet hoeveel gebruikers of hun verbindingen zijn.
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<p class="font-medium text-xl text-center text-grey-black dark:text-white">Manipulatie van verkiezingen</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">Privacy geeft u macht</a>
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<h1 class="text-3xl font-bold text-active-blue mb-6 lg:max-w-[448px]">Privacy geeft u macht</h1>
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<p>
Nog niet zo lang geleden zagen we dat de grote verkiezingen werden gemanipuleerd door <a href="https://en.wikipedia.org/wiki/FacebookCambridge_Analytica_data_scandal" target="_blank">een gerenommeerd adviesbureau</a> dat onze sociale grafieken gebruikte om ons beeld van de echte wereld te vervormen en onze stemmen te manipuleren.
</p>
<p>
Om objectief te zijn en onafhankelijke beslissingen te kunnen nemen, moet u de controle hebben over uw informatie. Het is alleen mogelijk als u een privé communicatieplatform gebruikt dat geen toegang heeft tot uw sociale grafiek.
</p>
<p>
SimpleX is het eerste platform dat standaard geen gebruikers ID's heeft, waardoor uw verbindingsgrafiek beter wordt beschermd dan welk alternatief dan ook.
</p>
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</div>
<svg class="close-overlay-btn" id="cross" width="16" height="16" viewBox="0 0 13 13" xmlns="http://www.w3.org/2000/svg">
<path d="M12.7973 11.5525L7.59762 6.49833L12.7947 1.44675C13.055 1.19371 13.0658 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">Vervolging wegens onschuldige associatie</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">Privacy beschermt uw vrijheid</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]">Privacy beschermt uw vrijheid</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>
Iedereen zou zich zorgen moeten maken over de privacy en veiligheid van hun communicatie — onschuldige gesprekken kunnen je in gevaar brengen, zelfs als je niets te verbergen hebt.
</p>
<p>
Een van de meest schokkende verhalen is de ervaring van <a href="https://en.wikipedia.org/wiki/Mohamedou_Ould_Slahi" target="_blank">Mohamedou Ould Salahi</a> beschreven in zijn memoires en getoond in The Mauritanian movie. Hij werd zonder proces in het Guantanamo kamp geplaatst en werd daar 15 jaar lang gemarteld na een telefoontje naar zijn familielid in Afghanistan, op verdenking van betrokkenheid bij aanslagen van 9/11, ook al woonde hij de afgelopen 10 jaar in Duitsland.
</p>
<p>
Gewone mensen worden gearresteerd voor wat ze online delen, zelfs via hun 'anonieme' accounts, <a href="https://www.dailymail.co.uk/news/article-11282263/Moment-police-swoop-house-devout-catholic-mother-malicious-online-posts.html" target="_blank">zelfs in democratische landen</a>.
</p>
<p>
Het is niet genoeg om een end-to-end versleutelde messenger te gebruiken, we zouden allemaal de messengers moeten gebruiken die de privacy van onze persoonlijke netwerken beschermen — met wie we verbonden zijn.
</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">Zorg ervoor dat je messenger geen toegang heeft tot je gegevens!</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">Waarom is SimpleX <span class="gradient-text">uniek</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">U heeft volledige privacy</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 beschermt de privacy van uw profiel, contacten en metadata en verbergt deze voor SimpleX platformservers en eventuele waarnemers.
</p>
<p>
In tegenstelling tot elk ander bestaand berichten platform, heeft SimpleX geen identificatiecodes toegewezen aan de gebruikers — <strong>zelfs geen willekeurige nummers </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">Kom meer te weten</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">Meer informatie</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">Info verbergen</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">U bent beschermd<br>tegen spam en misbruik</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>
Omdat u geen identificator of vast adres op het SimpleX platform heeft, kan niemand contact met u opnemen, tenzij u een eenmalig of tijdelijk gebruikers adres deelt, als een QR-code of een link.
</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">Kom meer te weten</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">Meer informatie</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">Info verbergen</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">U beheert uw gegevens</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 slaat alle gebruikersgegevens op client apparaten op in een <strong>draagbaar gecodeerd databaseformaat</strong> — en kan worden overgedragen naar een ander apparaat.
</p>
<p>
De end-to-end versleutelde berichten worden tijdelijk op SimpleX relayservers bewaard totdat ze zijn ontvangen, waarna ze permanent worden verwijderd.
</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">Kom meer te weten</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">Meer informatie</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">Info verbergen</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">U bent eigenaar van het SimpleX netwerk</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;">
Het SimpleX netwerk is volledig gedecentraliseerd en onafhankelijk van enige cryptovaluta of enig ander platform, behalve internet.
</p>
<p>
U kunt SimpleX <strong> gebruiken met uw eigen servers </strong> of met de servers die door ons worden geleverd — en toch verbinding maken met elke gebruiker.
</p>
</div>
<a href="javascript:void(0)" data-show-overlay="you-own-simplex-network" 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">Kom meer te weten</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">Meer informatie</span>
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</section>
<div id="privacy-of-identity-contacts-metadata" data-scroll-to="why-simplex" 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 ">Volledige privacy van uw identiteit, profiel, contacten en metadata</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>
In tegenstelling tot andere berichten platforms heeft SimpleX <strong> geen identifiers toegewezen aan de gebruikers </strong>. Het vertrouwt niet op telefoonnummers, domein gebaseerde adressen (zoals e-mail of XMPP), gebruikersnamen, openbare sleutels of zelfs willekeurige nummers om zijn gebruikers te identificeren — we weten niet ' hoeveel mensen onze SimpleX servers gebruiken.
</p>
<p>
Om berichten af te leveren gebruikt SimpleX <a href="https://csrc.nist.gov/glossary/term/Pairwise_Pseudonymous_Identifier">paarsgewijze anonieme adressen</a> van unidirectionele berichten wachtrijen, gescheiden voor ontvangen en verzonden berichten, meestal via verschillende servers. Het gebruik van SimpleX is als het hebben van <strong>een andere “brander” e-mail of telefoon voor elk contact</strong>, en geen gedoe om ze te beheren.
</p>
<p>
Dit ontwerp beschermt de privacy van met wie u communiceert en verbergt deze voor SimpleX platform servers en voor waarnemers. Om uw IP-adres voor de servers te verbergen, kunt u <strong> verbinding maken met SimpleX servers via Tor </strong>.
</p>
</div>
</div>
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<div id="protection-from-spam-and-abuse" data-scroll-to="why-simplex" 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 ">De beste bescherming tegen spam en misbruik</h1>
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<p>
Omdat je geen identificatie hebt op het SimpleX platform, kan niemand contact met je opnemen, tenzij je een eenmalig of tijdelijk gebruikers adres deelt, als een QR-code of een link.
</p>
<p>
Zelfs met het optionele gebruikers adres, hoewel het kan worden gebruikt om spam-contact verzoeken te verzenden, kunt u het wijzigen of volledig verwijderen zonder uw verbindingen te verliezen.
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<h1 class="text-3xl font-bold text-active-blue mb-6 ">Eigendom, controle en beveiliging van uw gegevens</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>
SimpleX Chat slaat alle gebruikersgegevens alleen op client apparaten op met behulp van een <strong>draagbaar gecodeerd databaseformaat</strong> dat kan worden geëxporteerd en overgebracht naar elk ondersteund apparaat.
</p>
<p>
De end-to-end versleutelde berichten worden tijdelijk op SimpleX relayservers bewaard totdat ze zijn ontvangen, waarna ze permanent worden verwijderd.
</p>
<p>
In tegenstelling tot gefedereerde netwerkservers (e-mail, XMPP of Matrix), slaan SimpleX servers geen gebruikers account op, ze sturen alleen berichten door, waardoor de privacy van beide partijen wordt beschermd.
</p>
<p>
Er zijn geen identifiers of gecodeerde tekst tussen verzonden en ontvangen serververkeer — als iemand het waarneemt, kunnen ze niet gemakkelijk bepalen wie met wie communiceert, zelfs als TLS is gecompromitteerd.
</p>
</div>
</div>
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<h1 class="text-3xl font-bold text-active-blue mb-6 ">Volledig gedecentraliseerd — gebruikers zijn eigenaar van het SimpleX netwerk</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>
U kunt <strong>SimpleX gebruiken met uw eigen servers</strong> en nog steeds communiceren met mensen die de door ons geleverde vooraf geconfigureerde servers gebruiken.
</p>
<p>
Het SimpleX platform gebruikt een <a href="https://github.com/simplex-chat/simplexmq/blob/stable/protocol/overview-tjr.md" target="_blank">open protocol</a> en biedt <a href="https://github.com/simplex-chat/simplex-chat/tree/stable/packages/simplex-chat-client/typescript" target="_blank">SDK om chatbots te maken</a>, waardoor services kunnen worden geïmplementeerd waarmee gebruikers kunnen communiceren via SimpleX Chat apps — waar we' erg naar uitkijken om te zien welke SimpleX services u kunt bouwen.
</p>
<p>
Als u overweegt om voor het SimpleX platform te ontwikkelen, bijvoorbeeld de chatbot voor gebruikers van de SimpleX app, of de integratie van de SimpleX Chat bibliotheek in uw mobiele apps, <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">get in touch</a> for any advice en ondersteuning.
</p>
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<section id="features" class="bg-secondary-bg-light dark:bg-secondary-bg-dark py-[95px] px-5 lg:h-[888px]">
<div class="container">
<h2 class="text-[35px] leading-[45px] md:leading-[55px] lg:text-[45px] text-center font-bold gradient-text mb-20">Functies</h2>
<div class="mb-[50px] grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-4 gap-x-10 gap-y-32">
<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">
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<p class="text-grey-black dark:text-white text-[16px] font-medium text-center w-full max-w-[265px]">E2E-versleutelde berichten met markdown en bewerking</p>
</div>
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<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">
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<p class="text-grey-black dark:text-white text-[16px] font-medium text-center w-full max-w-[265px]">E2E-versleutelde<br>afbeeldingen en bestanden</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">
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<p class="text-grey-black dark:text-white text-[16px] font-medium text-center w-full max-w-[265px]">Gedecentraliseerde geheime groepen -<br>alleen gebruikers weten dat ze bestaan</p>
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<p class="text-grey-black dark:text-white text-[16px] font-medium text-center w-full max-w-[265px]">E2E-versleutelde spraakberichten</p>
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<p class="text-grey-black dark:text-white text-[16px] font-medium text-center w-full max-w-[265px]">Verdwijnende geheime gesprekken</p>
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<p class="text-grey-black dark:text-white text-[16px] font-medium text-center w-full max-w-[265px]">E2E-versleutelde<br>audio- en videogesprekken</p>
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<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">
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<p class="text-grey-black dark:text-white text-[16px] font-medium text-center w-full max-w-[265px]">Portable versleutelde database — verplaats je profiel naar een ander apparaat</p>
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<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">
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<p class="text-grey-black dark:text-white text-[16px] font-medium text-center w-full max-w-[265px]">Incognitomodus -<br>uniek voor SimpleX Chat</p>
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</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">Wat maakt SimpleX <span class="gradient-text">privé</span></h2>
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<img class="w-full max-w-[223px] h-full max-h-[226px] dark:hidden" src="/img/new/private-10.svg" alt="">
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<h3 class="text-grey-black dark:text-white text-[18px] my-4 font-bold leading-[26px] tracking-[0.01em] text-center">Tijdelijke anonieme paarsgewijze identifiers</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 gebruikt tijdelijke anonieme paarsgewijze adressen en inloggegevens voor elk gebruikers contact of groepslid.</p>
<p class="text-grey-black dark:text-white text-[14px] text-center">Het maakt het mogelijk om berichten te bezorgen zonder gebruikers profiel ID's, wat een betere privacy van metagegevens biedt dan alternatieven.</p>
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<p class="text-grey-black dark:text-white text-[12px] text-center">Tik om te sluiten</p>
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<h3 class="text-grey-black dark:text-white text-[18px] my-4 font-bold leading-[26px] tracking-[0.01em] text-center">Out-of-band<br>sleuteluitwisseling</h3>
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<p class="text-grey-black dark:text-white text-[14px] text-center">Veel communicatie platforms zijn kwetsbaar voor MITM aanvallen door servers of netwerk providers.</p>
<p class="text-grey-black dark:text-white text-[14px] text-center">Om te voorkomen dat SimpleX apps eenmalige sleutels out-of-band doorgeven, wanneer u een adres deelt als een link of een QR-code.</p>
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<p class="text-grey-black dark:text-white text-[12px] text-center">Tik om te sluiten</p>
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</div>
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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="">
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<h3 class="text-grey-black dark:text-white text-[18px] my-4 font-bold leading-[26px] tracking-[0.01em] text-center">2 lagen<br>end-to-end versleuteling</h3>
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<p class="text-grey-black dark:text-white text-[14px] text-center">Protocol met double-ratchet -<br>OTR-berichten met perfecte voorwaartse geheimhouding en inbraak herstel.</p>
<p class="text-grey-black dark:text-white text-[14px] text-center">NaCL-cryptobox in elke wachtrij om verkeer correlatie tussen berichten wachtrijen te voorkomen als TLS wordt aangetast.</p>
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<p class="text-grey-black dark:text-white text-[12px] text-center">Tik om te sluiten</p>
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<h3 class="text-grey-black dark:text-white text-[18px] my-4 font-bold leading-[26px] tracking-[0.01em] text-center">Bericht integriteit<br>verificatie</h3>
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<p class="text-grey-black dark:text-white text-[14px] text-center">Om de integriteit te garanderen, zijn de berichten opeenvolgend genummerd en bevatten ze de hash van het vorige bericht.</p>
<p class="text-grey-black dark:text-white text-[14px] text-center">Als een bericht wordt toegevoegd, verwijderd of gewijzigd, wordt de ontvanger gewaarschuwd.</p>
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<p class="text-grey-black dark:text-white text-[12px] text-center">Tik om te sluiten</p>
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<h3 class="text-grey-black dark:text-white text-[18px] my-4 font-bold leading-[26px] tracking-[0.01em] text-center">Extra laag<br>server versleuteling</h3>
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<p class="text-grey-black dark:text-white text-[14px] text-center">Extra server versleuteling laag voor levering aan de ontvanger, om de correlatie tussen ontvangen en verzonden server verkeer te voorkomen als TLS is aangetast.</p>
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<p class="text-grey-black dark:text-white text-[12px] text-center">Tik om te sluiten</p>
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<h3 class="text-grey-black dark:text-white text-[18px] my-4 font-bold leading-[26px] tracking-[0.01em] text-center">Berichten mixen<br>om correlatie te verminderen</h3>
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<p class="text-grey-black dark:text-white text-[14px] text-center">SimpleX servers fungeren als mix nodes met lage latentie — de inkomende en uitgaande berichten hebben een andere volgorde.</p>
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<p class="text-grey-black dark:text-white text-[12px] text-center">Tik om te sluiten</p>
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<h3 class="text-grey-black dark:text-white text-[18px] my-4 font-bold leading-[26px] tracking-[0.01em] text-center">Veilig geverifieerd<br>TLS-transport</h3>
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<p class="text-grey-black dark:text-white text-[14px] text-center">Alleen TLS 1.2/1.3 met sterke algoritmen wordt gebruikt voor client-server verbindingen.</p>
<p class="text-grey-black dark:text-white text-[14px] text-center">Server fingerprint en channel binding voorkomen MITM- en replay-aanvallen.</p>
<p class="text-grey-black dark:text-white text-[14px] text-center">Connectie herstel is uitgeschakeld om sessie aanvallen te voorkomen.</p>
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<p class="text-grey-black dark:text-white text-[12px] text-center">Tik om te sluiten</p>
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<h3 class="text-grey-black dark:text-white text-[18px] my-4 font-bold leading-[26px] tracking-[0.01em] text-center">Optionele<br>toegang via Tor</h3>
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<p class="text-grey-black dark:text-white text-[14px] text-center">Om uw IP-adres te beschermen kunt u via Tor of een ander transport overlay netwerk toegang krijgen tot de servers.</p>
<p class="text-grey-black dark:text-white text-[14px] text-center">Installeer de <a href="https://guardianproject.info/apps/org.torproject.android/" target="_blank">Orbot-app </a> en schakel de SOCKS5-proxy in (of VPN <a href="https://apps.apple.com/us/app/orbot/id1609461599?platform=iphone" target="_blank"> op iOS </a>) om SimpleX via Tor te gebruiken.</p>
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<p class="text-grey-black dark:text-white text-[12px] text-center">Tik om te sluiten</p>
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<img class="w-full max-w-[223px] h-full max-h-[226px] dark:hidden" src="/img/new/private-9.svg" alt="">
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<h3 class="text-grey-black dark:text-white text-[18px] my-4 font-bold leading-[26px] tracking-[0.01em] text-center">Unidirectionele<br>berichtenwachtrijen</h3>
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<p class="text-grey-black dark:text-white text-[14px] text-center">Elke berichten wachtrij geeft berichten in één richting door, met verschillende verzend en ontvangst adressen.</p>
<p class="text-grey-black dark:text-white text-[14px] text-center">Het vermindert de aanvals mogenlijkheden, in vergelijking met traditionele berichten diensten en de beschikbare metadata.</p>
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<p class="text-grey-black dark:text-white text-[12px] text-center">Tik om te sluiten</p>
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<img class="w-full max-w-[223px] h-full max-h-[226px] dark:hidden" src="/img/new/private-5.svg" alt="">
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<h3 class="text-grey-black dark:text-white text-[18px] my-4 font-bold leading-[26px] tracking-[0.01em] text-center">Meerdere lagen van<br>inhouds opvulling</h3>
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<p class="text-grey-black dark:text-white text-[14px] text-center">SimpleX gebruikt content opvulling voor elke coderingslaag om aanvallen op bericht grootte te verstoren.</p>
<p class="text-grey-black dark:text-white text-[14px] text-center">Het zorgt ervoor dat berichten van verschillende grootte er hetzelfde uitzien voor de servers en netwerk waarnemers.</p>
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<p class="text-grey-black dark:text-white text-[12px] text-center">Tik om te sluiten</p>
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</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">Netwerk</span></h2>
<p class="text-black dark:text-white text-[16px] font-normal text-center mb-16">Simplex Chat biedt de beste privacy door de voordelen van P2P en gefedereerde netwerken te combineren.</p>
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<h3 class="text-active-blue text-xl font-bold text-center md:text-left lg:text-center self-stretch">In tegenstelling tot P2P netwerken</h3>
<p class="text-black dark:text-white text-base font-normal text-center md:text-left lg:text-center">
Alle berichten worden verzonden via servers, die zorgen voor een betere metadata privacy en een betrouwbare asynchrone bezorging van berichten, terwijl er veel word vermeden <a href="javascript:void(0)" data-show-overlay="comparison-with-p2p-protocols" class="open-overlay-btn">van problemen met P2P netwerken</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 ">Vergelijking met P2P berichten protocollen</h1>
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<p>
<a href="https://en.wikipedia.org/wiki/Peer-to-peer">P2P</a>-berichtenprotocollen en -apps hebben verschillende problemen waardoor ze minder betrouwbaar zijn dan SimpleX, complexer om te analyseren en kwetsbaarder voor verschillende soorten aanvallen.
</p>
<ol style="list-style: auto; padding-left: 1em;">
<li>
P2P netwerken vertrouwen op een variant van <a href="https://en.wikipedia.org/wiki/Distributed_hash_table">DHT</a> om berichten te routeren. DHT ontwerpen moeten een balans vinden tussen leveringsgarantie en latentie. SimpleX heeft zowel een betere leveringsgarantie als een lagere latentie dan P2P, omdat het bericht redundant via meerdere servers parallel kan worden doorgegeven, met behulp van de servers die door de ontvanger zijn gekozen. In P2P netwerken wordt het bericht achtereenvolgens door <em>O(log N)</em>-knooppunten geleid, met behulp van door het algoritme gekozen knooppunten.
</li>
<li>
SimpleX ontwerp heeft, in tegenstelling tot de meeste P2P netwerken, geen globale gebruikers ID's van welke soort dan ook, zelfs niet tijdelijk en gebruikt alleen tijdelijke paarsgewijze ID's wat een betere anonimiteit en metadata bescherming biedt.
</li>
<li>
P2P lost het probleem <a href="https://en.wikipedia.org/wiki/Man-in-the-middle_attack">MITM-aanval</a> niet op en de meeste bestaande implementaties gebruiken geen out-of-band berichten voor de initiële sleuteluitwisseling. SimpleX gebruikt out-of-band berichten of, in sommige gevallen, reeds bestaande veilige en vertrouwde verbindingen voor de eerste sleuteluitwisseling.
</li>
<li>
P2P implementaties kunnen door sommige internetproviders worden geblokkeerd (zoals <a href="https://en.wikipedia.org/wiki/BitTorrent">BitTorrent</a>). SimpleX is transport-agnostisch - het kan werken via standaard webprotocollen, b.v. WebSockets.
</li>
<li>
Alle bekende P2P netwerken kunnen kwetsbaar zijn voor <a href="https://en.wikipedia.org/wiki/Sybil_attack">Sybil-aanval</a>, omdat elk knooppunt vindbaar is en het netwerk als een geheel opereert. Bekende maatregelen om het te verminderen, vereisen een gecentraliseerde component of duur <a href="https://en.wikipedia.org/wiki/Proof_of_work"> bewijs van werk </a>. Het SimpleX-netwerk kan niet worden gedetecteerd door de server, het is gefragmenteerd en werkt als meerdere geïsoleerde subnetwerken, waardoor netwerkbrede aanvallen onmogelijk zijn.
</li>
<li>
P2P netwerken kunnen kwetsbaar zijn voor <a href="https://www.usenix.org/conference/woot15/workshop-program/presentation/p2p-file-sharing-hell-exploiting-bittorrent">DRDoS-aanvallen</a>, wanneer de clients het verkeer opnieuw kunnen uitzenden en versterken, wat resulteert in netwerkbrede denial of service. SimpleX clients sturen alleen verkeer van een bekende verbinding door en kunnen niet door een aanvaller worden gebruikt om het verkeer in het hele netwerk te versterken.
</li>
</ol>
</div>
</div>
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<img class="w-full max-w-[448px] min-w-[300px] dark:hidden" src="/img/new/network-1.svg" alt="">
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</div>
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<img src="/img/new/network-2.svg" alt="" class="dark:hidden">
<img src="/img/new/network-2-dark.svg" alt="" class="hidden dark:block">
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<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">In tegenstelling tot federatieve netwerken</h3>
<p class="text-black dark:text-white text-base font-normal text-center md:text-left lg:text-center">
SimpleX relay servers slaan GEEN gebruikers profielen, contacten en afgeleverde berichten op, maken GEEN verbinding met elkaar en er is GEEN server directory.
</p>
</div>
</div>
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<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">SimpleX netwerk</h3>
<p class="text-black dark:text-white text-base font-normal text-center md:text-left lg:text-center">
servers bieden <span class="text-active-blue">unidirectionele wachtrijen</span> om de gebruikers te verbinden, maar ze hebben geen zicht op de netwerk verbindings grafiek — alleen de gebruikers.
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<section id="simplex-explained" class="bg-primary-bg-light dark:bg-primary-bg-dark lg:h-[890px] py-[90px] px-5">
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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">Simplex uitgelegd</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. Wat gebruikers ervaren</div>
<div data-btn-index="1" class="flex-1 tab-button tab-2 p-2 text-[20px] text-center font-bold cursor-pointer">2. Hoe werkt het</div>
<div data-btn-index="2" class="flex-1 tab-button tab-3 p-2 text-[20px] text-center font-bold cursor-pointer">3. Wat servers zien</div>
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<div class="tab-button p-2 text-[20px] text-center font-bold active md:hidden">1. Wat gebruikers ervaren</div>
<div class="flex flex-col justify-center items-center">
<img class="h-[340px] mb-[74px]" src="/img/new/explained-1.svg" alt="">
<p class="text-black dark:text-white text-[16px] font-normal text-center">
U kunt contacten en groepen maken en tweerichtings gesprekken voeren, zoals in elke andere messenger.
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<p class="text-black dark:text-white text-[16px] font-normal text-center">
Hoe kan het werken met unidirectionele wachtrijen en zonder gebruikers profiel ID's?
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<div class="swiper-slide h-[inherit]">
<div class="tab-button p-2 text-[20px] text-center font-bold active md:hidden">2. Hoe werkt het</div>
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<p class="text-black dark:text-white text-[16px] font-normal text-center">
Voor elke verbinding gebruikt u twee afzonderlijke berichten wachtrijen om berichten via verschillende servers te verzenden en te ontvangen.
</p>
<p class="text-black dark:text-white text-[16px] font-normal text-center">
Servers geven berichten slechts in één richting door, zonder een volledig beeld te hebben van het gesprek of de connecties van de gebruiker.
</p>
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<div class="swiper-slide h-[inherit]">
<div class="tab-button p-2 text-[20px] text-center font-bold active md:hidden">3. Wat servers zien</div>
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<p class="text-black dark:text-white text-[16px] font-normal text-center">
De servers hebben afzonderlijke anonieme inloggegevens voor elke wachtrij en weten niet tot welke gebruikers ze behoren.
</p>
<p class="text-black dark:text-white text-[16px] font-normal text-center">
Gebruikers kunnen de privacy van metadata verder verbeteren door Tor te gebruiken om toegang te krijgen tot servers, waardoor corellatie op IP-adres wordt voorkomen.
</p>
</div>
</div>
</div>
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<section id="comparison" class="bg-secondary-bg-light dark:bg-secondary-bg-dark lg:h-[950px] py-[90px] px-5">
<div class="text-grey-black dark:text-white container flex flex-col">
<h2 class="text-[35px] leading-[43px] md:leading-[55px] lg:leading-[36px] text-center font-bold mb-12 lg:mb-[90px]">Vergelijking met andere protocollen</h2>
<div class="w-full overflow-auto">
<table class="w-full border-separate border-spacing-x-5 border-spacing-y-2 mb-14">
<thead>
<tr>
<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">Signaal, grote platforms</th>
<th class="pb-4">XMPP, Matrix</th>
<th class="pb-4">P2P protocollen</th>
</tr>
</thead>
<tbody>
<tr>
<td class="min-w-[210px]">Vereist globale identiteit</td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#48F6C2] text-grey-black rounded-[4px]">Nee - privé</td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#fff] dark:bg-[#171F3A] text-[#DD0000] rounded-[4px]">Ja <sup>1</sup></td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#fff] dark:bg-[#171F3A] text-[#DD0000] rounded-[4px]">Ja <sup>2</sup></td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#fff] dark:bg-[#171F3A] text-[#DD0000] rounded-[4px]">Ja <sup>3</sup></td>
</tr>
<tr>
<td class="min-w-[210px]">Mogelijkheid van MITM</td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#48F6C2] text-grey-black rounded-[4px]">Nee - veilig</td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#fff] dark:bg-[#171F3A] text-[#DD0000] rounded-[4px]">Ja <sup>4</sup></td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#fff] dark:bg-[#171F3A] text-[#DD0000] rounded-[4px]">Ja</td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#fff] dark:bg-[#171F3A] text-[#DD0000] rounded-[4px]">Ja</td>
</tr>
<tr>
<td class="min-w-[210px]">Afhankelijkheid van DNS</td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#48F6C2] text-grey-black rounded-[4px]">Nee - veerkrachtig</td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#fff] dark:bg-[#171F3A] text-[#DD0000] rounded-[4px]">Ja</td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#fff] dark:bg-[#171F3A] text-[#DD0000] rounded-[4px]">Ja</td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#48F6C2] text-grey-black rounded-[4px]">Nee</td>
</tr>
<tr>
<td class="min-w-[210px]">Enkelvoudig of gecentraliseerd netwerk</td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#48F6C2] text-grey-black rounded-[4px]">Nee - gedecentraliseerd</td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#fff] dark:bg-[#171F3A] text-[#DD0000] rounded-[4px]">Ja</td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#48F6C2] text-grey-black rounded-[4px]">Nee - gefedereerd <sup>5</sup></td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#fff] dark:bg-[#171F3A] text-[#DD0000] rounded-[4px]">Ja <sup>6</sup></td>
</tr>
<tr>
<td class="min-w-[210px]">Centrale component of andere netwerkbrede aanval</td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#48F6C2] text-grey-black rounded-[4px]">Nee - veerkrachtig</td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#fff] dark:bg-[#171F3A] text-[#DD0000] rounded-[4px]">Ja</td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#fff] dark:bg-[#171F3A] text-[#DD0000] rounded-[4px]">Ja <sup>2</sup></td>
<td class="text-center font-medium min-w-[152px] h-[52px] bg-[#fff] dark:bg-[#171F3A] text-[#DD0000] rounded-[4px]">Ja <sup>7</sup></td>
</tr>
</tbody>
</table>
</div>
<hr class="block mb-8 mx-5 dark:opacity-[0.2]">
<div>
<div class="px-5">
<ol class="text-sm lg:text-base font-medium leading-6 list-decimal list-inside">
<li> Meestal op basis van een telefoonnummer, in sommige gevallen op gebruikersnamen</li>
<li> Op DNS gebaseerde adressen</li>
<li> Publieke sleutel of een andere globale unieke ID</li>
<li> Als de servers van de operator zijn aangetast</li>
<li> Beschermt de metadata van gebruikers niet</li>
<li> Hoewel P2P wordt gedistribueerd, zijn ze niet federatief - ze werken als een enkel netwerk</li>
<li> P2P netwerken hebben een centrale autoriteit of het hele netwerk kan worden aangetast - <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">kijk hier</a></li>
</ol>
</div>
</div>
</div>
</section>
<section id="join-simplex" class="bg-primary-bg-light dark:bg-primary-bg-dark lg:h-[855px] py-[90px] px-5">
<div class="container flex flex-col items-center">
<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">Word lid van</span> SimpleX</h2>
<p class="text-black dark:text-white text-base text-center mb-14">Wij nodigen u uit om deel te nemen aan het gesprek</p>
<div class="flex flex-col items-center gap-5 self-stretch mb-12">
<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]">Bezoek ons op 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]">Volg ons op GitHub</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]">Doneer hier om ons te helpen</a>
</div>
<p class="text-grey-black dark:text-white text-base text-center mb-7">Schrijf u in om onze updates te ontvangen</p>
<form class="flex items-center w-full max-w-[540px] mb-20" action="https://chat.us2.list-manage.com/subscribe/post?u=ddd892b258ae36e5438e6d4e1&amp;id=ad6037a2fe" method="post" target="_blank" novalidate="">
<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="Voer uw e-mail adres in">
<span aria-hidden="true" class="hidden">
<input type="text" name="b_ddd892b258ae36e5438e6d4e1_ad6037a2fe" tabindex="-1" value="">
</span>
<input type="submit" class="h-[44px] ltr:rounded-r-[34px] rtl:rounded-l-[34px] bg-primary-light text-white text-center px-8">
</form>
<hr class="block mb-7 mx-5 dark:opacity-[0.2] w-full">
<p class="text-grey-black dark:text-white text-center mb-7">Verkrijg 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>
<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>
</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="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="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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Terminal CLI
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TypeScript SDK
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