* @param password
     *            The user's password.
     * @param challenge
     *            The server challenge.
     * @param clientChallenge
     *            The client challenge (nonce).
     * @return the calculated response
     * @throws GeneralSecurityException
     */
    public static byte[] getLMv2Response ( String domain, String user, String password, byte[] challenge, byte[] clientChallenge )