mcrypt_enc_get_supported_key_sizes

(PHP 4 >= 4.0.2, PHP 5)

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.

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));
?>

This will print:

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


	PHP5中文手册 mcrypt_enc_get_modes_name mcrypt_enc_is_block_algorithm_mode mcrypt PHP Manual mcrypt_enc_get_supported_key_sizes (PHP 4 >= 4.0.2, PHP 5) 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. 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)); ?>` This will print: array(3) { [0]=> int(16) [1]=> int(24) [2]=> int(32) } mcrypt_enc_get_modes_name mcrypt_enc_is_block_algorithm_mode mcrypt PHP Manual