---
title: "messages.requestEncryption"
description: "You cannot use this method directly, see https://docs.madelineproto.xyz for more info on handling secret chats"
grand_parent: "Telegram RPC API"
parent: "Methods"
image: https://docs.madelineproto.xyz/favicons/android-chrome-256x256.png
redirect_from: /API_docs/methods/messages_requestEncryption.html
---
# Method: messages.requestEncryption
[Back to methods index](index.html)



You cannot use this method directly, see https://docs.madelineproto.xyz for more info on handling secret chats

### Parameters:

| Name     |    Type       | Description | Required |
|----------|---------------|-------------|----------|
|user\_id|[Username, chat ID, Update, Message or InputUser](/API_docs/types/InputUser.html) | User ID | Optional|
|g\_a|[bytes](/API_docs/types/bytes.html) | `A = g ^ a mod p`, see [Wikipedia](https://en.wikipedia.org/wiki/Diffie%E2%80%93Hellman_key_exchange) | Yes|


### Return type: [EncryptedChat](/API_docs/types/EncryptedChat.html)

### Can bots use this method: **NO**


### MadelineProto Example ([now async for huge speed and parallelism!](https://docs.madelineproto.xyz/docs/ASYNC.html)):


```php
if (!file_exists('madeline.php')) {
    copy('https://phar.madelineproto.xyz/madeline.php', 'madeline.php');
}
include 'madeline.php';

$MadelineProto = new \danog\MadelineProto\API('session.madeline');
$MadelineProto->start();

$EncryptedChat = $MadelineProto->messages->requestEncryption(user_id: $InputUser, g_a: 'bytes', );
```