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Returns an array with the supported keysizes of the opened algorithm


mcrypt_enc_get_supported_key_sizes

(PHP 4 >= 4.0.2, PHP 5)

mcrypt_enc_get_supported_key_sizesReturns an array with the supported keysizes of the opened algorithm

Description

array mcrypt_enc_get_supported_key_sizes ( resource $td )

Gets the supported key sizes of the opened algorithm.

Parameters

td

The encryption descriptor.

Return Values

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

Examples

Example #1 mcrypt_enc_get_supported_key_sizes() example

<?php
    $td 
mcrypt_module_open('rijndael-256''''ecb''');
    
var_dump(mcrypt_enc_get_supported_key_sizes($td));
?>

The above example will output:

 array(3) { [0]=> int(16) [1]=> int(24) [2]=> int(32) } 



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