mirror of
https://github.com/simplex-chat/simplex-chat.git
synced 2026-03-31 07:35:55 +00:00
43adb7de82
* readme: fix link * add 11ty files to website folder * add web.yml * add simplex web files * add font matter to some blogs * remove unnecessary things * change few settings * add a web script * update web.yml * update image format & add an image * add font matter to blogs * update blog.html * add article layout & give that layout to blogs * update the location of _includes * update article layout * change original blog links * add styling to blog * improve the links of blogs * update web.sh * add favicon * update a tag in a blog * improve stylings of article page * improve styling of blog page * update the theme * update font matter and update links in new blog. * add style changes * apply reverse chronology sort on articles * shift blogs links back to hashes * add ids to headers & smooth scrolling * make all blog links relative * add smooth scrolling & add relative to absolute links converter * add navigation * improve mobile nav * change desktop header style * convert blogs link text to "Read More" * change desktop header style * style mobile nav * fix landing page styling * update web workflow * update web workflow * nav setting * add tailwind links * update web workflow * remove app demo folder * remove special characters from the links * fix the issue of links * make web.sh executable * update blog links * move web.sh to website folder * code style * EOLs * format index.css & contact.css * add markdown-it configuration * add outline none on focus * remove extra Javascript * make mobile nav display none by default * add permalinks to markdown files * update 11ty config * update web.sh * update article * resolve issue of special characters in header ids introduce slugify * add target _blank to whitepaper link * add last post * EOLs * try to resolve bullets issue * use markdown-it-replace-link to convert relative .md extension to .html extension * add missing images, simpligy link parsing * add CNAME file * add CNAME file, rename config * fix jumping table issue Co-authored-by: Evgeny Poberezkin <2769109+epoberezkin@users.noreply.github.com>
427 lines
17 KiB
HTML
427 lines
17 KiB
HTML
<!DOCTYPE html>
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<html lang="en-US">
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<head>
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<meta charset="utf-8" />
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>SimpleX Chat: private, secure, no user identitifiers</title>
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<meta
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name="description"
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content="Free open-source chat protocol and software - complete privacy, security and ownership of your contacts and messages."
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/>
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<meta name="Content-Type" content="text/html;charset=utf-8" />
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<meta property="og:type" content="website" />
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<meta property="og:title" content="SimpleX chat: private, secure, de-centralised" />
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<meta
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property="og:description"
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content="Free open-source chat protocol and software - complete privacy, security and ownership of your contacts and messages."
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/>
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<meta property="og:url" content="https://simplex.chat/" />
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<meta property="og:image" content="https://simplex.chat/img/share_simplex.png" />
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<meta name="twitter:card" content="summary" />
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<link href="/css/tailwind.css" rel="stylesheet" />
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<link href="/css/style.css" rel="stylesheet" />
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<link href="css/index.css" rel="stylesheet" />
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<link rel="icon" type="image/png" sizes="96x96" href="/img/favicon.ico">
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<script async defer src="js/index.js"></script>
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<script async defer src="https://buttons.github.io/buttons.js"></script>
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</head>
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<body>
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{% include "nav.html" %}
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<section id="demo" class="z-10">
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<div class="container">
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<h1>SimpleX Chat</h1>
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<h3>Private & encrypted - the only platform without user identifiers!</h3>
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<div class="app__links">
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<a href="https://apps.apple.com/us/app/simplex-chat/id1605771084" target="_blank"><img src="./img/apple_store.svg" height="42"></a>
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<a href="https://play.google.com/store/apps/details?id=chat.simplex.app" target="_blank" title="Public iOS preview on TestFlight"><img src="./img/google_play.svg"></a>
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<a href="https://app.simplex.chat" target="_blank" title="SimpleX F-Droid Repository"><img src="./img/f_droid.svg" height="41"></a>
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<a href="https://testflight.apple.com/join/DWuT2LQu" target="_blank"><img src="./img/testflight.png" width="41" height="41"></a>
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<a href="https://github.com/simplex-chat/website/raw/master/simplex.apk" target="_blank"><img src="./img/apk_icon.png" width="41" height="41"></a>
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</div>
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<p class="d-none-576">You can download terminal chat app from GitHub or using this command:</p>
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<p class="content_copy_with_tooltip install d-none-576">
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<span class="content">curl -o- https://raw.githubusercontent.com/simplex-chat/simplex-chat/master/install.sh | bash</span>
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<span class="tooltip">
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<span class="tooltiptext">Copy to clipboard</span>
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<img class="content_copy" src="./img/icons/content-copy.svg">
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</span>
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</p>
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<div class="all-users">
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<div class="user alice">
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<h3>Alice</h3>
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<div class="terminal">
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<div class="display"></div>
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<div class="input"></div>
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<input type="text" />
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</div>
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</div>
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<div class="user bob d-none">
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<h3>Bob</h3>
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<div class="terminal">
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<div class="display"></div>
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<div class="input"></div>
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<input type="text" />
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</div>
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</div>
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<div class="user simplex_mobile d-none-890">
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<img src="./img/simplex_mobile.png" alt="" width="320">
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</div>
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<div class="user tom d-none">
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<h3>Tom</h3>
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<div class="terminal">
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<div class="display"></div>
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<div class="input"></div>
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<input type="text" />
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</div>
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</div>
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<button class="run-demo d-none-890">Run demo</button>
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<button class="run-faster d-none-890">Faster!</button>
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<button class="try-it d-none-890">Try it!</button>
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</div>
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</div>
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</section>
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<section id="introduction">
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<div class="container">
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<h2>Privacy redefined</h2>
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<h3>SimpleX advantage:</h3>
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<p>SimpleX ensures data and meta-data privacy</p>
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<p>with a new protocol design – it delivers messages</p>
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<p>without using senders' and recipients' identifiers,</p>
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<p>unlike any other messaging platform.</p>
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<figure class="section">
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<div class="feature">
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<div class="doodle control"></div>
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<h4>Security</h4>
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<p>Two-layer encryption and communication integrity</p>
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</div>
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<div class="feature">
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<div class="doodle privacy"></div>
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<h4>Privacy</h4>
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<p>Your contacts and messages are stored on your device</p>
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</div>
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<div class="feature">
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<div class="doodle convenience"></div>
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<h4>Convenience</h4>
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<p>Easy to add contacts and start talking</p>
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</div>
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</figure>
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</div>
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</section>
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<section id="problem">
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<div class="container">
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<h2>Problem: chat security</h2>
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<a id="problem-explained"></a>
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<section class="problem intro">
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<h3>End-to-end encryption?</h3>
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<p>Alice sends the key to Bob (e.g. via p2p network or via chat server)</p>
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<div class="problem-section">
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<figure class="communication">
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<figure class="party alice">Alice</figure>
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<img alt="Alice sends the key to Bob" src="./img/problem11.svg" />
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<figure class="party bob">Bob</figure>
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</figure>
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</div>
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<p>Now Bob can send encrypted messages to Alice - he believes it is secure!</p>
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<div class="problem-section">
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<figure class="communication">
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<figure class="party alice">Alice</figure>
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<img alt="They believe it is secure" src="./img/problem12.svg" />
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<figure class="party bob">Bob</figure>
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</figure>
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</div>
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</section>
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<section class="problem explained">
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<h3>Man-in-the-middle attack!</h3>
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<p>But the key can be intercepted and substituted by Tom (the attacker)</p>
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<div class="problem-section">
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<figure class="communication">
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<figure class="party alice">Alice</figure>
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<img alt="key is intercepted" src="./img/problem21.svg" />
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<figure class="party bob">Bob</figure>
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<div class="tom">Tom</div>
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</figure>
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</div>
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<p>Now the attacker can read the messages without Alice or Bob knowing</p>
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<div class="problem-section">
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<figure class="communication">
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<figure class="party alice">Alice</figure>
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<img alt="attacker can read messages" src="./img/problem22.svg" />
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<figure class="party bob">Bob</figure>
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<div class="tom">Tom</div>
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</figure>
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</div>
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</section>
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<div class="pagination">
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<a class="page intro" href="#problem-intro"></a>
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<a class="page explained" href="#problem-explained"></a>
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</div>
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</div>
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</section>
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<section id="solution">
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<div class="container">
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<h2>What is the solution?</h2>
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<p>
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To create secure encrypted channel you need an existing secure channel
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<br />where you can pass the encryption key (or key fingerprint).
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</p>
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<p>Any alternative solution can be compromised.</p>
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</div>
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</section>
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<section id="connection">
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<div class="container">
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<h2>Make a private connection!</h2>
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<h3>To add contact and to start chat</h3>
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<p>
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Adding a contact in mobile app will require sharing your one-time QR code.
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<br>In the <a href="https://github.com/simplex-chat/simplex-chat">terminal UI</a> you need to share an invitation with your contact.
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</p>
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<h4>After creating your chat profile in the app:</h4>
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<figure class="section">
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<figure class="conn-stage">
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<p>1.<br>Show QR code or share link</p>
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<figure class="device">
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<img alt="mobile app: show QR code to add contact" src="./img/1_show_qr_code.png" width="187px"/>
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</figure>
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<figure class="party alice small">Alice</figure>
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</figure>
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<img src="img/arrow.svg" class="arrow" />
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<figure class="conn-stage">
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<p>2.<br>Your contact scans QR code or opens link</p>
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<figure class="device">
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<img alt="mobile app: scan QR code" src="./img/2_scan_qr_code.png" width="187px"/>
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</figure>
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<figure class="party bob small">Bob</figure>
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</figure>
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<img src="img/arrow.svg" class="arrow" />
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<figure class="conn-stage">
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<p>3.<br>A private connection is established</p>
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<figure class="device">
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<img alt="mobile app: confirm contact" src="./img/3_connected.png" width="187px"/>
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</figure>
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<figure class="party alice small">Alice</figure>
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</figure>
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<img src="img/arrow.svg" class="arrow" />
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<figure class="conn-stage">
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<p>4.<br>Now you can chat privately!</p>
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<figure class="device">
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<img alt="mobile app: start chat" src="./img/4_chat.png" width="187px"/ />
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</figure>
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<figure class="party bob small">Bob</figure>
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</figure>
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</figure>
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</div>
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</section>
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<section id="comparison">
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<div class="container">
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<h2>Comparison with other protocols</h2>
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<div class="table-holder">
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<table class="systems">
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<thead>
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<tr>
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<th></th>
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<th class="simplex"><img alt="simplex logo" src="img/icon.svg" /> SimpleX chat</th>
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<th>Signal, big platforms</th>
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<th>XMPP, Matrix</th>
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<th>P2P protocols</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td>Requires global identity</td>
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<td class="highlight good">No - private</td>
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<td class="highlight bad">Yes <sup>1</sup></td>
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<td class="highlight bad">Yes <sup>2</sup></td>
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<td class="highlight bad">Yes <sup>3</sup></td>
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</tr>
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<tr>
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<td>Possibility of MITM</td>
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<td class="highlight good">No - secure</td>
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<td class="highlight bad">Yes <sup>4</sup></td>
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<td class="highlight bad">Yes</td>
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<td class="highlight bad">Yes</td>
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</tr>
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<tr>
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<td>Dependence on DNS</td>
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<td class="highlight good">No - resilient</td>
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<td class="highlight bad">Yes</td>
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<td class="highlight bad">Yes</td>
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<td class="highlight good">No</td>
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</tr>
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<tr>
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<td>Single or centralized network</td>
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<td class="highlight good">No - decentralized</td>
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<td class="highlight bad">Yes</td>
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<td class="highlight good">No - federated <sup>5</sup></td>
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<td class="highlight bad">Yes <sup>6</sup></td>
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</tr>
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<tr>
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<td>Central component or other network-wide attack</td>
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<td class="highlight good">No - resilient</td>
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<td class="highlight bad">Yes</td>
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<td class="highlight bad">Yes <sup>2</sup></td>
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<td class="highlight bad">Yes <sup>7</sup></td>
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</tr>
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</tbody>
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</table>
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</div>
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<div class="table-comments">
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<ul class="legend">
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<li class="good">Good</li>
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<li class="bad">Bad</li>
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</ul>
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<div class="footnotes">
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<ol>
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<li>Usually based on a phone number, in some cases on usernames</li>
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<li>DNS-based addresses</li>
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<li>Public key or some other globally unique ID</li>
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<li>If operator’s servers are compromised</li>
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<li>Does not protect users' metadata</li>
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<li>
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While P2P are distributed, they are not federated - they operate as a single network
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</li>
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<li>
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P2P networks either have a central authority or the whole network can be compromised -
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see
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<a
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href="https://github.com/simplex-chat/protocol#comparison-with-p2p-messaging-protocols"
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>here</a
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>
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</li>
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</ol>
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</div>
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</div>
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</div>
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</section>
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<section id="messaging">
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<div class="container flex flex-col items-center">
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<div>
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<h2>SimpleX messaging protocol</h2>
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<h3>Unidirectional (simplex) queues</h3>
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<p>
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<a
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href="https://github.com/simplex-chat/simplexmq/blob/master/protocol/simplex-messaging.md"
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target="_blank"
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>Simplex messaging protocol</a
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>
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(SMP) for messaging via secure persistent queues will serve as the low level protocol for
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SimpleX chat - see
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<a href="https://github.com/simplex-chat/simplex-messaging" target="_blank"
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>demo server implementation</a
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>.<br />
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It uses different encryption keys for each message queue - the key is passed via existing
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secure channel - e.g. QR code or another simplex queue.<br />
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</p>
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</div>
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<img alt="simplex messaging protocol" src="./img/messaging.png">
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</div>
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</section>
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<section id="chat">
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<div class="container flex flex-col items-center">
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<div>
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<h2>Chat</h2>
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<h3>Communication integrity</h3>
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<p>
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Each chat uses two (or more) simplex queues for duplex communication. Each message contains the
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hash of the previous message to detect if messages are lost or changed.
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</p>
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</div>
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<img alt="simplex chat: duplex conversation" src="./img/chat.png">
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</div>
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</section>
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<section id="simplex">
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<div class="container">
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<article id="use-simplex" class="half">
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<h3>Use SimpleX</h3>
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<p>
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SimpleX chat terminal client
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<a href="https://github.com/simplex-chat/simplex-chat/releases/tag/v2.0.0" target="_blank">v2.0.0</a> is
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released!<br />
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– groups and files<br />
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– two-layer E2E encryption, with double-ratchet algorithm<br />
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– protocol is compatible with mobile apps<br />
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</p>
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<p>
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You can use our servers or deploy your own, e.g. using
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<a href="https://github.com/simplex-chat/simplexmq#deploy-smp-server-on-linode" target="_blank">
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StackScript on Linode</a>.
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</p>
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<p>
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Sign up to be updated about the new releases.
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</p>
|
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<form class="sign-up"
|
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action="https://chat.us2.list-manage.com/subscribe/post?u=ddd892b258ae36e5438e6d4e1&id=ad6037a2fe"
|
||
method="post" target="_blank" novalidate>
|
||
<div>
|
||
<input name="EMAIL" placeholder="Your email" />
|
||
<span style="position: absolute; left: -5000px" aria-hidden="true">
|
||
<input type="text" name="b_ddd892b258ae36e5438e6d4e1_ad6037a2fe" tabindex="-1" value="" />
|
||
</span>
|
||
<button type="submit">Submit</button>
|
||
</div>
|
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</form>
|
||
</article>
|
||
|
||
<article id="join-simplex" class="half">
|
||
<h3>Join SimpleX</h3>
|
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<p>
|
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The project can move faster with your help.<br />
|
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We develop it in Haskell.
|
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</p>
|
||
|
||
<div id="contacts">
|
||
<p>
|
||
<a href="mailto:chat@simplex.chat">
|
||
<span class="button">Email</span> chat@simplex.chat</a>
|
||
</p>
|
||
<p>
|
||
<a href="https://github.com/simplex-chat/simplex-chat" target="_blank"><span
|
||
class="button">Join</span> github.com/simplex-chat</a>
|
||
</p>
|
||
<p>
|
||
<a href="https://opencollective.com/simplex-chat" target="_blank"><span class="button">Donate</span>
|
||
opencollective.com/simplex-chat</a> <strong>(now accepts crypto)</strong>
|
||
</p>
|
||
</div>
|
||
</article>
|
||
</div>
|
||
</section>
|
||
|
||
<footer>
|
||
<div class="container">
|
||
<img alt="simplex logo" class="logo d-none-992" src="./img/simplex.svg" />
|
||
<div class="copyright__text_and_links">
|
||
<p class="copyright">© 2020-22 SimpleX | Open-Source Project <span class="d-none-576">|</span></p>
|
||
<div>
|
||
<a class="" href="https://github.com/simplex-chat" target="_blank"><img
|
||
src="./img/icons/github.svg"></a>
|
||
<a class="" href="https://www.reddit.com/r/SimpleXChat/" target="_blank"><img
|
||
src="./img/icons/reddit.svg"></a>
|
||
<a class="" href="https://twitter.com/simplexchat" target="_blank"><img
|
||
src="./img/icons/twitter.svg"></a>
|
||
<a class="" href="https://www.linkedin.com/company/simplex-chat/" target="_blank"><img
|
||
src="./img/icons/linkedin.svg"></a>
|
||
<a class="" href="mailto:chat@simplex.chat" target="_blank"><img src="./img/icons/email.svg"></a>
|
||
</div>
|
||
</div>
|
||
<div class="github d-none-992">
|
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data-show-count="true" aria-label="Star simplex-chat on GitHub">Star</a>
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