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mcrypt_get_block_size

(PHP 4, PHP 5)

mcrypt_get_block_size — Gets the block size of the specified cipher


Описание

int mcrypt_get_block_size ( int $cipher )
int mcrypt_get_block_size ( string $cipher , string $module )

The first prototype is when linked against libmcrypt 2.2.x, the second when linked against libmcrypt 2.4.x or 2.5.x.

mcrypt_get_block_size() is used to get the size of a block of the specified cipher (in combination with an encryption mode).

It is more useful to use the mcrypt_enc_get_block_size() function as this uses the resource returned by mcrypt_module_open().


Список параметров

cipher -

One of the MCRYPT_ciphername constants or the name of the algorithm as string.

module -

The module.


Возвращаемые значения

Gets the block size, as an integer.


Примеры

Пример #1 mcrypt_get_block_size() example

This example shows how to use this function when linked against libmcrypt 2.4.x and 2.5.x.


echo mcrypt_get_block_size('tripledes', 'ecb'); // 8


Смотрите также


Описание на ru2.php.net
Описание на php.ru