def _get_LMv2_response(user_name, password, domain_name, server_challenge, client_challenge):
        """
        [MS-NLMP] v28.0 2016-07-14

        2.2.2.4 LMv2_RESPONSE
        The LMv2_RESPONSE structure defines the NTLM v2 authentication LmChallengeResponse
        in the AUTHENTICATE_MESSAGE. This response is used only when NTLM v2
        authentication is configured.

        :param user_name: The user name of the user we are trying to authenticate with
        :param password: The password of the user we are trying to authenticate with
        :param domain_name: The domain name of the user account we are authenticated with
        :param server_challenge: A random 8-byte response generated by the server in the CHALLENGE_MESSAGE
        :param client_challenge: A random 8-byte response generated by the client for the AUTHENTICATE_MESSAGE
        :return response: LmChallengeResponse to the server challenge
        """
        nt_hash = comphash._ntowfv2(user_name, password, domain_name)
        lm_hash = hmac.new(nt_hash, (server_challenge + client_challenge)).digest()
        response = lm_hash + client_challenge

        return response