55 lines
1.7 KiB
Markdown
55 lines
1.7 KiB
Markdown
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---
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title: messages.getDhConfig
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description: Returns configuration parameters for Diffie-Hellman key generation. Can also return a random sequence of bytes of required length.
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image: https://docs.madelineproto.xyz/favicons/android-chrome-256x256.png
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redirect_from: /API_docs/methods/messages_getDhConfig.html
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---
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# Method: messages.getDhConfig
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[Back to methods index](index.md)
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Returns configuration parameters for Diffie-Hellman key generation. Can also return a random sequence of bytes of required length.
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### Parameters:
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| Name | Type | Description | Required |
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|----------|---------------|-------------|----------|
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|version|[int](../types/int.md) | Value of the **version** parameter from [messages.dhConfig](../constructors/messages.dhConfig.md), avialable at the client | Yes|
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|random\_length|[int](../types/int.md) | Length of the required random sequence | Yes|
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### Return type: [messages.DhConfig](../types/messages.DhConfig.md)
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### Can bots use this method: **NO**
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### MadelineProto Example ([now async for huge speed and parallelism!](https://docs.madelineproto.xyz/docs/ASYNC.html)):
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```php
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if (!file_exists('madeline.php')) {
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copy('https://phar.madelineproto.xyz/madeline.php', 'madeline.php');
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}
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include 'madeline.php';
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$MadelineProto = new \danog\MadelineProto\API('session.madeline');
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$MadelineProto->start();
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$messages.DhConfig = $MadelineProto->messages->getDhConfig(['version' => int, 'random_length' => int, ]);
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```
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Or, if you're into Lua:
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```lua
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messages.DhConfig = messages.getDhConfig({version=int, random_length=int, })
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```
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### Errors
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| Code | Type | Description |
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|------|----------|---------------|
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|400|RANDOM_LENGTH_INVALID|Random length invalid|
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