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title: danog\MadelineProto\Settings\Auth: Cryptography settings.
description: 

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# `danog\MadelineProto\Settings\Auth`
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> Author: Daniil Gentili <daniil@daniil.it>  
  

Cryptography settings.  




## Method list:
* `getRsaKeys(): array`
* `setRsaKeys(array $rsaKeys): self`
* `getDefaultTempAuthKeyExpiresIn(): int`
* `setDefaultTempAuthKeyExpiresIn(int $defaultTempAuthKeyExpiresIn): self`
* `getPfs(): bool`
* `setPfs(bool $pfs): self`
* `getMaxAuthTries(): int`
* `setMaxAuthTries(int $maxAuthTries): self`
* `hasChanged(): bool`

## Methods:
### `getRsaKeys(): array`

Get MTProto public keys array.



### `setRsaKeys(array $rsaKeys): self`

Set MTProto public keys array.


Parameters:
* `$rsaKeys`: `array` MTProto public keys array.  



### `getDefaultTempAuthKeyExpiresIn(): int`

Get validity period of the binding of temporary and permanent keys.



### `setDefaultTempAuthKeyExpiresIn(int $defaultTempAuthKeyExpiresIn): self`

Set validity period of the binding of temporary and permanent keys.


Parameters:
* `$defaultTempAuthKeyExpiresIn`: `int` Validity period of the binding of temporary and permanent keys.  



### `getPfs(): bool`

Get whether to use PFS.



### `setPfs(bool $pfs): self`

Set whether to use PFS.


Parameters:
* `$pfs`: `bool` Whether to use PFS  



### `getMaxAuthTries(): int`

Get max tries for generating auth key.



### `setMaxAuthTries(int $maxAuthTries): self`

Set max tries for generating auth key.


Parameters:
* `$maxAuthTries`: `int` Max tries for generating auth key  



### `hasChanged(): bool`

Get whether this setting was changed, also applies changes.



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