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<h1 id="dev_page_title">messages.requestEncryption</h1>
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<div id="dev_page_content"><p>Sends a request to start a secret chat to the user.</p>
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<li><a href="?layer=1">1 – Base layer</a></li><li><a href="?layer=2">2 – New userpic notifications</a></li><li><a href="?layer=3">3 – Send message can trigger link change</a></li><li><a href="?layer=4">4 – Check-in chats</a></li><li><a href="?layer=5">5 – Localized SMS, localized notifications</a></li><li><a href="?layer=6">6 – Foursquare integration</a></li><li><a href="?layer=7">7 – Added wallPaperSolid</a></li><li><a href="?layer=8">8 – Added end-to-end encryption</a></li><li><a href="?layer=9">9 – Improved big files upload perfomance</a></li><li><a href="?layer=10">10 – Improved chat participants updates</a></li><li><a href="?layer=11">11 – Improved secret chats</a></li><li><a href="?layer=12">12 – New dynamic support</a></li><li><a href="?layer=13">13 – Audio, video MIME; contacts import retry; new secret actions</a></li><li><a href="?layer=14">14 – Notify settings sync, blacklist sync</a></li><li><a href="?layer=15">15 – Modified getHistory offset behaviour</a></li><li><a href="?layer=16">16 – Split sendCode into 2 parts</a></li><li><a href="?layer=17">17 – Added custom typing, introduced message flags</a></li><li><a href="?layer=18">18 – Added usernames</a></li><li><a href="?layer=23">23 – Stickers for secret chats</a></li><li><a href="?layer=105">105 – Scheduled messages, Cloud themes</a></li><li><a href="?layer=108">108 – Login with QR code</a></li><li><a href="?layer=109">109 – Polls v2</a></li><li><a href="?layer=110">110 – People Nearby 2.0, Bank card entity</a></li><li><a href="?layer=111">111 – Folders, Broadcast Stats</a></li><li><a href="?layer=112">112 – Old featured stickers, generic dice, poll timer, poll solution</a></li><li><a href="?layer=113">113 – PSA</a></li><li><a href="?layer=114">114 – Video thumbs for GIFs</a></li><li><a href="?layer=115">115 – Peek Channel Invite</a></li><li><a href="?layer=116">116 – Group Stats, Profile Videos</a></li><li><a href="?layer=117">117 – WebRTC Phone Calls</a></li><li><a href="?layer=118">118 – Callback with 2FA, Countries list</a></li><li><a href="?layer=119">119 – Comments in channels, Threads, Anonymous Admins</a></li><li><a href="?layer=120">120 – Multipins, Message Stats, GeoLive v2</a></li><li><a href="?layer=121">121 – SVG-based Outlines for Stickers</a></li><li><a href="?layer=122">122 – Voice Chats</a></li><li><a href="?layer=123">123 – Voice Chat improvements</a></li><li><a href="?layer=124">124 – Expiring Invite links</a></li><li><a href="?layer=125">125 – Voice Chats in Broadcasts</a></li><li><a href="?layer=126">126 – Ban channels in channels</a></li><li><a href="?layer=127">127 – Payments in channels</a></li><li><a href="?layer=128">128 – Microthumbs for User/Chat profile photos</a></li><li><a href="?layer=129">129 – Video Chats</a></li><li><a href="?layer=130">130 – Custom placeholder for bot reply keyboards</a></li><li><a href="?layer=131">131 – Reset 2FA Password after a week</a></li><li><a href="?layer=132">132 – Chat themes</a></li><li><a href="?layer=133">133 – 64-bit IDs for User/Chat</a></li><li><a href="?layer=134">134 – Chat Requests, Shared Media Calendar</a></li><li><a href="?layer=135">135 – Send Message As a Channel</a></li><li><a href="?layer=136">136 – Reactions</a></li><li><a href="?layer=137">137 – Translations</a></li><li><a href="?layer=138">138 – GIF Sticker Packs</a></li><li><a href="?layer=139">139 – RTMP streaming</a></li><li><a href="?layer=140">140 – WebApps, Cloud Ringtones</a></li><li><a href="?layer=142">142 – TCP Reflectors</a></li><li><a href="?layer=143">143 – Premium Subscription, Cloud Invoices</a></li><li><a href="?layer=144">144 – Premium as a Gift, Custom Emoji</a></li><li><a href="?layer=145">145 – Custom Reactions, Statuses, Sign In with email</a></li><li><a href="?
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<pre class="page_scheme"><code><a href="/constructor/encryptedChatEmpty" >encryptedChatEmpty</a>#ab7ec0a0 id:<a href="/type/int" >int</a> = <a href="/type/EncryptedChat" >EncryptedChat</a>;
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<a href="/constructor/encryptedChatWaiting" >encryptedChatWaiting</a>#66b25953 id:<a href="/type/int" >int</a> access_hash:<a href="/type/long" >long</a> date:<a href="/type/int" >int</a> admin_id:<a href="/type/long" >long</a> participant_id:<a href="/type/long" >long</a> = <a href="/type/EncryptedChat" >EncryptedChat</a>;
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<a href="/constructor/encryptedChatRequested" >encryptedChatRequested</a>#48f1d94c flags:<a href="/type/%23" >#</a> folder_id:flags.0?<a href="/type/int" >int</a> id:<a href="/type/int" >int</a> access_hash:<a href="/type/long" >long</a> date:<a href="/type/int" >int</a> admin_id:<a href="/type/long" >long</a> participant_id:<a href="/type/long" >long</a> g_a:<a href="/type/bytes" >bytes</a> = <a href="/type/EncryptedChat" >EncryptedChat</a>;
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<a href="/constructor/encryptedChat" >encryptedChat</a>#61f0d4c7 id:<a href="/type/int" >int</a> access_hash:<a href="/type/long" >long</a> date:<a href="/type/int" >int</a> admin_id:<a href="/type/long" >long</a> participant_id:<a href="/type/long" >long</a> g_a_or_b:<a href="/type/bytes" >bytes</a> key_fingerprint:<a href="/type/long" >long</a> = <a href="/type/EncryptedChat" >EncryptedChat</a>;
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<a href="/constructor/encryptedChatDiscarded" >encryptedChatDiscarded</a>#1e1c7c45 flags:<a href="/type/%23" >#</a> history_deleted:flags.0?true id:<a href="/type/int" >int</a> = <a href="/type/EncryptedChat" >EncryptedChat</a>;
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---functions---
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<a href="/method/messages.requestEncryption" class="current_page_link" >messages.requestEncryption</a>#f64daf43 user_id:<a href="/type/InputUser" >InputUser</a> random_id:<a href="/type/int" >int</a> g_a:<a href="/type/bytes" >bytes</a> = <a href="/type/EncryptedChat" >EncryptedChat</a>;</code></pre></p>
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<h3><a class="anchor" href="#parameters" id="parameters" name="parameters"><i class="anchor-icon"></i></a>Parameters</h3>
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<table class="table">
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<thead>
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<tr>
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<th>Name</th>
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<th style="text-align: center;">Type</th>
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<th>Description</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><strong>user_id</strong></td>
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<td style="text-align: center;"><a href="/type/InputUser">InputUser</a></td>
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<td>User ID</td>
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</tr>
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<tr>
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<td><strong>random_id</strong></td>
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<td style="text-align: center;"><a href="/type/int">int</a></td>
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<td>Unique client request ID required to prevent resending. This also doubles as the chat ID.</td>
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</tr>
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<tr>
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<td><strong>g_a</strong></td>
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<td style="text-align: center;"><a href="/type/bytes">bytes</a></td>
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<td><code>A = g ^ a mod p</code>, see <a href="https://en.wikipedia.org/wiki/Diffie%E2%80%93Hellman_key_exchange">Wikipedia</a></td>
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</tr>
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</tbody>
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</table>
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<h3><a class="anchor" href="#result" id="result" name="result"><i class="anchor-icon"></i></a>Result</h3>
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<p><a href="/type/EncryptedChat">EncryptedChat</a></p>
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<h3><a class="anchor" href="#possible-errors" id="possible-errors" name="possible-errors"><i class="anchor-icon"></i></a>Possible errors</h3>
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<tr>
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<th>Code</th>
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<th>Type</th>
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<th>Description</th>
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</thead>
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<td>400</td>
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<td>DH_G_A_INVALID</td>
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<td>g_a invalid.</td>
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<td>400</td>
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2023-05-22 14:54:47 +02:00
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<td>INPUT_USER_DEACTIVATED</td>
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<td>The specified user was deleted.</td>
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</tr>
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<tr>
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<td>400</td>
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<td>USER_ID_INVALID</td>
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<td>The provided user ID is invalid.</td>
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</tr>
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</tbody>
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