403      * @param int    $compute The iteration count for new passwords
407     protected function stretched_hash($algo, $clear, $salt = null, $magic = 'P', $compute = 8)  argument
412             $salt = $itoa64[$compute] . $salt; // prefix iteration count
468      * @param int    $compute The iteration count for new passwords
472     public function hash_pmd5($clear, $salt = null, $magic = 'P', $compute = 8)  argument
474         return $this->stretched_hash('md5', $clear, $salt, $magic, $compute);
490      * @param int    $compute The iteration count for new passwords (defautl is drupal 7's)
494     public function hash_drupal_sha512($clear, $salt = null, $magic = 'S', $compute = 15)  argument
496         return substr($this->stretched_hash('sha512', $clear, $salt, $magic, $compute), 0, 55);
505      * @param int $compute
510     public function hash_hmd5($clear, $salt = null, $magic = 'H', $compute = 8)  argument
512         return $this->hash_pmd5($clear, $salt, $magic, $compute);
672      * @param int    $compute The iteration count (between 4 and 31)
676     public function hash_bcrypt($clear, $salt = null, $compute = 10)  argument
683             if ($compute < 4 || $compute > 31) $compute = 8;
684             $salt = '$2y$' . str_pad($compute, 2, '0', STR_PAD_LEFT) . '$' .