'Verifies a received HMAC.
This method raises a DecryptionError if the received HMAC does not
verify. If the HMAC verifies correctly, True is returned.
Args:
comms: The comms RdfValue to verify.
Raises:
DecryptionError: The HMAC did not verify.
Returns:
True'

def VerifyReceivedHMAC(self, comms):

    return self._VerifyHMAC(comms)
