Compzone.Org :: Podręcznik PHP :: mcrypt_get_key_size

Podręcznik PHP
Poprzedni		Następny

mcrypt_get_key_size

(PHP 3 >= 3.0.8, PHP 4, PHP 5)

mcrypt_get_key_size -- Get the key size of the specified cipher

Description

int mcrypt_get_key_size ( int cipher )

int mcrypt_get_key_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_key_size() is used to get the size of a key of the specified cipher (in combination with an encryption mode).

This example shows how to use this function when linked against libmcrypt 2.4.x and 2.5.x. It is more useful to use the mcrypt_enc_get_key_size() function as this uses the resource returned by mcrypt_module_open().

Przykład 1. mcrypt_get_block_size() example

<?php

                    echo mcrypt_get_key_size('tripledes', 'ecb');

                ?>


                Prints:

                24

See also: mcrypt_get_block_size(), mcrypt_end_get_key_size() and mcrypt_encrypt().

Poprzedni	Spis treści	Następny
mcrypt_get_iv_size	Początek rozdziału	mcrypt_list_algorithms