Last updated: Fri, 30 Oct 2009

mcrypt_module_get_supported_key_sizes

(PHP 4 >= 4.0.2, PHP 5)

mcrypt_module_get_supported_key_sizes — Returns an array with the supported keysizes of the opened algorithm

Beschreibung

array mcrypt_module_get_supported_key_sizes ( string $algorithm [, string $lib_dir ] )

Returns an array with the key sizes supported by the specified algorithm. If it returns an empty array then all key sizes between 1 and mcrypt_module_get_algo_key_size() are supported by the algorithm.

Parameter-Liste

algorithm: The algorithm to used.
lib_dir: The optional lib_dir parameter can contain the location of where the algorithm module is on the system.

Rückgabewerte

Siehe auch

mcrypt_enc_get_supported_key_sizes() - Returns an array with the supported keysizes of the opened algorithm

add a note User Contributed Notes
mcrypt_module_get_supported_key_sizes

Daniel Bartlett <dan at lockedbox dot net>
12-Feb-2004 06:50


A small bit of php for listing available encryption algorythms and their keysizes.



<?php

$cipher_dir = "/usr/local/lib/libmcrypt";

$algorithms = mcrypt_list_algorithms($cipher_dir);

echo "<html><head></head><body><table><tr>\n";

foreach ($algorithms as $cipher) {

        echo "<td>" . $cipher . "</td><td>";

        $ksizes = mcrypt_module_get_supported_key_sizes($cipher, $cipher_dir);

        if($ksizes==NULL) echo mcrypt_module_get_algo_key_size($cipher, $cipher_dir);

        else foreach ($ksizes as $size) {

                echo $size . " ";

        }

        echo "</td></tr>\n";

}

echo "</table></body></html>\n";

?>



I hope some one finds it handy.

add a note

mcrypt_module_is_block_algorithm_mode

mcrypt_module_get_algo_key_size

Last updated: Fri, 30 Oct 2009