public bool ProcessZkInitiation(BinaryReader binReader, BinaryWriter binWriter, Stopwatch sw)
{
_username = binReader.ReadString();
_aEphemeral = binReader.ReadBytes(32);
_logger.Debug("ZkInitiation client username received: {0}", _username);
_logger.Debug("ZkInitiation client Ephemeral received: {0}", Convert.ToBase64String(_aEphemeral));
_zkPasswordHash = _repository.GetPasswordHashSet(_username);
if (null == _zkPasswordHash)
{
_logger.Debug("ZkInitiation client username not found. Authentication failed.");
binWriter.Write(false);
return(false);
}
_bRand = _zkProtocol.CryptRand();
_bEphemeral = _zkProtocol.GetServerEphemeralB(_zkPasswordHash.Salt, _zkPasswordHash.Verifier, _bRand);
_scramble = _zkProtocol.CalculateRandomScramble(_aEphemeral, _bEphemeral);
_serverSessionKey = _zkProtocol.ServerComputeSessionKey(_zkPasswordHash.Salt,
_zkPasswordHash.Key, _aEphemeral, _bEphemeral, _scramble);
binWriter.Write(true);
binWriter.Write(_zkPasswordHash.Salt);
_logger.Debug("ZkInitiation hash salt sent to client: {0}", Convert.ToBase64String(_zkPasswordHash.Salt));
binWriter.Write(_bEphemeral);
_logger.Debug("ZkInitiation server Ephemeral sent to client: {0}", Convert.ToBase64String(_bEphemeral));
return(true);
}
public bool ProcessZkInitiation(BinaryReader binReader, BinaryWriter binWriter, Stopwatch sw)
{
_username = binReader.ReadString();
_aEphemeral = binReader.ReadBytes(32);
_zkPasswordHash = _repository.GetPasswordHashSet(_username);
if (null == _zkPasswordHash)
{
binWriter.Write(false);
return(false);
}
_bRand = _zkProtocol.CryptRand();
_bEphemeral = _zkProtocol.GetServerEphemeralB(_zkPasswordHash.Salt, _zkPasswordHash.Verifier, _bRand);
_scramble = _zkProtocol.CalculateRandomScramble(_aEphemeral, _bEphemeral);
_serverSessionKey = _zkProtocol.ServerComputeSessionKey(_zkPasswordHash.Salt,
_zkPasswordHash.Key, _aEphemeral, _bEphemeral, _scramble);
binWriter.Write(true);
binWriter.Write(_zkPasswordHash.Salt);
binWriter.Write(_bEphemeral);
return(true);
}