(PHP 3 >= 3.0.8, PHP 4, PHP 5)mcrypt_get_block_size -- Get the block size of the specified cipher

Description

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().

This example shows how to use this function when linked against libmcrypt

2.4.x and 2.5.x.

Пример 1. mcrypt_get_block_size() example <?php echo mcrypt_get_block_size('tripledes', 'ecb'); ?> Prints: 8

See also: mcrypt_get_key_size(),

mcrypt_enc_get_block_size() and

mcrypt_encrypt().

Пред.

Начало

След.

mcrypt_generic

Уровень выше

mcrypt_get_cipher_name