mcrypt_enc_get_supported_key_sizes

(PHP 4 = 4.0.2)

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

Description

array mcrypt_enc_get_supported_key_sizes ( resource td)

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.

範例 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));
? 

This will print:

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