MadelineProtoDocs/old_docs/API_docs_v72/methods/set_client_DH_params.md

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---
title: set_client_DH_params
description: Sets client diffie-hellman parameters
image: https://docs.madelineproto.xyz/favicons/android-chrome-256x256.png
---
# Method: set\_client\_DH\_params
[Back to methods index](index.md)
Sets client diffie-hellman parameters
### Parameters:
| Name | Type | Description | Required |
|----------|---------------|-------------|----------|
|nonce|[int128](../types/int128.md) | Random number for cryptographic security | Yes|
|server\_nonce|[int128](../types/int128.md) | Random number for cryptographic security, given by server | Yes|
|encrypted\_data|[string](../types/string.md) | Encrypted message | Yes|
### Return type: [Set\_client\_DH\_params\_answer](../types/Set_client_DH_params_answer.md)
### Can bots use this method: **YES**
### 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();
$Set_client_DH_params_answer = $MadelineProto->set_client_DH_params(['nonce' => int128, 'server_nonce' => int128, 'encrypted_data' => 'string', ]);
```
Or, if you're into Lua:
```lua
Set_client_DH_params_answer = set_client_DH_params({nonce=int128, server_nonce=int128, encrypted_data='string', })
```
### Errors
| Code | Type | Description |
|------|----------|---------------|
|400|INPUT_METHOD_INVALID_4110704415_X||