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mcrypt_enc_get_supported_key_sizes

(PHP 4 >= 4.0.2, PHP 5, PHP 7 < 7.2.0, PECL mcrypt >= 1.0.0)

mcrypt_enc_get_supported_key_sizesReturns an array with the supported keysizes of the opened algorithm

Advertencia

Esta función ha sido declarada OBSOLETA a partir de PHP 7.1.0 y será ELIMINADA a partir de PHP 7.2.0. Su uso está totalmente desaconsejado.

Descripción

mcrypt_enc_get_supported_key_sizes(resource $td): array

Gets the supported key sizes of the opened algorithm.

Parámetros

td

The encryption descriptor.

Valores devueltos

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.

Ejemplos

Ejemplo #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));
?>

El resultado del ejemplo sería:

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

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