/**
* Hash a string for use in an LDAP password field.
*/
public static function hash($string, $algorithm = NULL)
{
switch ($algorithm) {
case 'crypt':
$hash = '{CRYPT}' . crypt($string, substr($string, 0, 2));
break;
case 'salted crypt':
$hash = '{CRYPT}' . crypt($string, self::salt(2));
break;
case 'extended des':
$hash = '{CRYPT}' . crypt($string, '_' . self::salt(8));
break;
case 'md5crypt':
$hash = '{CRYPT}' . crypt($string, '$1$' . self::salt(9));
break;
case 'blowfish':
$hash = '{CRYPT}' . crypt($string, '$2a$12$' . self::salt(13));
break;
case 'md5':
$hash = '{MD5}' . base64_encode(md5($string, TRUE));
break;
case 'salted md5':
$salt = SimpleLdap::salt(8);
$hash = '{SMD5}' . base64_encode(md5($string . $salt, TRUE) . $salt);
break;
case 'sha':
$hash = '{SHA}' . base64_encode(sha1($string, TRUE));
break;
case 'salted sha':
$salt = SimpleLdap::salt(8);
$hash = '{SSHA}' . base64_encode(sha1($string . $salt, TRUE) . $salt);
break;
case 'unicode':
$string = '"' . $string . '"';
$length = drupal_strlen($string);
$hash = NULL;
for ($i = 0; $i < $length; $i++) {
$hash .= "{$string[$i]}";
}
break;
case 'none':
default:
$hash = $string;
}
return $hash;
}
