Password.php

<?php
class Dsao_Hash_Password extends Dsao_Hash
{
  protected $_password = '';

  protected function __construct($length = 10, $algorithm = null)
  {
    // Initialisierung
    parent::__construct(false, $length, $algorithm);

    // Passwort generieren und Hash setzen
    $this->_generatePassword();
  }

  public function __toString()
  {
    return $this->getPassword();
  }

  protected function _generatePassword()
  {
    // Zeichenpool
    $pool = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890'.
      '!§$%&/()=?+#-_.:,;<>';

    // Größe des Zeichenpools
    $poolLength = strlen($pool);

    // Passwort
    $this->_password = '';

    $passwordValidator = new Dsao_Validate_Password();

    // Solange das Passwort nicht die Voraussetzungen erfüllt
    while (!$passwordValidator->isValid($this->_password))
    {
      // Zeichen für Zeichen das Passwort zusammenstellen
      for ($i = 0; $i < $this->_length; $i++)
      {
        $this->_password .= $pool{mt_rand(0, $poolLength-1)};
      }
    }

    $this->_generateHash($this->_password);
  }

  public function deletePlainText()
  {
    $this->_password = '';

    return $this;
  }

  public static function factory($length = 10, $algorithm = null)
  {
    return new self($length, $algorithm);
  }

  public function getPassword()
  {
    return $this->_password;
  }
}