$iv_size = mcrypt_get_iv_size(MCRYPT_BLOWFISH, MCRYPT_MODE_CBC);
      $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
      $crypted = @mcrypt_encrypt(MCRYPT_BLOWFISH, $key, $data,MCRYPT_MODE_CBC,$iv);
      $crypted = toHex($iv) . ":" . toHex( $crypted);
      echo  $crypted ;