57 lines
1.8 KiB
Markdown
57 lines
1.8 KiB
Markdown
---
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title: req_DH_params
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description: Requests Diffie-hellman parameters for key exchange
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image: https://docs.madelineproto.xyz/favicons/android-chrome-256x256.png
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---
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# Method: req\_DH\_params
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[Back to methods index](index.md)
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Requests Diffie-hellman parameters for key exchange
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### Parameters:
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| Name | Type | Description | Required |
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|----------|---------------|-------------|----------|
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|nonce|[int128](../types/int128.md) | Random number for cryptographic security | Yes|
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|server\_nonce|[int128](../types/int128.md) | Random number for cryptographic security, given by server | Yes|
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|p|[string](../types/string.md) | Factorized p from pq | Yes|
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|q|[string](../types/string.md) | Factorized q from pq | Yes|
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|public\_key\_fingerprint|[long](../types/long.md) | Server RSA fingerprint | Yes|
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|encrypted\_data|[string](../types/string.md) | Encrypted message | Yes|
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### Return type: [Server\_DH\_Params](../types/Server_DH_Params.md)
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### Can bots use this method: **YES**
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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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$Server_DH_Params = $MadelineProto->req_DH_params(['nonce' => int128, 'server_nonce' => int128, 'p' => 'string', 'q' => 'string', 'public_key_fingerprint' => long, 'encrypted_data' => 'string', ]);
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```
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Or, if you're into Lua:
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```lua
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Server_DH_Params = req_DH_params({nonce=int128, server_nonce=int128, p='string', q='string', public_key_fingerprint=long, encrypted_data='string', })
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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|INPUT_METHOD_INVALID_3608339646_X|Invalid method|
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