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   1  <?php
   2  
   3  /**
   4   * Joomla! Content Management System
   5   *
   6   * @copyright  (C) 2016 Open Source Matters, Inc. <https://www.joomla.org>
   7   * @license    GNU General Public License version 2 or later; see LICENSE.txt
   8   */
   9  
  10  namespace Joomla\CMS\Encrypt;
  11  
  12  // phpcs:disable PSR1.Files.SideEffects
  13  \defined('JPATH_PLATFORM') or die;
  14  // phpcs:enable PSR1.Files.SideEffects
  15  
  16  /**
  17   * Generates cryptographically-secure random values.
  18   *
  19   * @since    4.0.0
  20   */
  21  class Randval implements RandValInterface
  22  {
  23      /**
  24       * Returns a cryptographically secure random value.
  25       *
  26       * This method allows us to quickly address any future issues if we ever find problems with PHP's random_bytes() on
  27       * some weird host (you can't be too careful when releasing mass-distributed software).
  28       *
  29       * @param   integer  $bytes  How many bytes to return
  30       *
  31       * @return  string
  32       */
  33      public function generate($bytes = 32)
  34      {
  35          return random_bytes($bytes);
  36      }
  37  }