You should explain that the block size is return in BYTES, not the more commonly used unit, bits. Many readers are not going to know the DES block size and figure this out on their own.
(PHP 4, PHP 5, PHP 7 < 7.2.0, PECL mcrypt >= 1.0.0)
mcrypt_get_block_size — Gets the block size of the specified cipher
Această funcție a fost ÎNVECHITĂ începând cu PHP 7.1.0 și ELIMINATĂ începând cu PHP 7.2.0. Utilizarea acestei funcții este foarte nerecomandată.
$cipher
) : int|false$cipher
, string $mode
) : int|falseThe 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().
cipher
Una din constantele MCRYPT_ciphername
sau denumirea algoritmului ca șir de caractere.
mode
Una din constantele MCRYPT_MODE_modename
sau unul din
șirurile de caractere: "ecb", "cbc", "cfb", "ofb", "nofb" sau "stream".
Returns the algorithm block size in bytes sau false
în cazul eșecului.
Example #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.
<?php
echo mcrypt_get_block_size('tripledes', 'ecb'); // 8
?>
You should explain that the block size is return in BYTES, not the more commonly used unit, bits. Many readers are not going to know the DES block size and figure this out on their own.