public object Clone()
{
AESProtocolState state = new AESProtocolState();
state.Mode = this.Mode;
state.KeySize = this.KeySize;
state.BlockSize = this.BlockSize;
state.FeedbackSize = this.FeedbackSize;
state.Padding = this.Padding;
state.Key = (byte[])this.Key?.Clone();
state.Enabled = this.Enabled;
return(state);
}
public void SetState(AESProtocolState state)
{
_state = state;
if (state.Enabled)
{
// the order is important
// set Key and IV after setting their sizes
_aesAlg.Mode = _state.Mode;
_aesAlg.KeySize = _state.KeySize;
_aesAlg.BlockSize = _state.BlockSize;
_aesAlg.FeedbackSize = _state.FeedbackSize;
_aesAlg.Padding = _state.Padding;
_aesAlg.Key = _state.Key;
}
}
private static void AddBasicSecurityLayer(ProtocolStackState stackState, AESProtocolState aesState)
{
// Heartbeat
stackState.MiddleProtocols.Add(new HeartbeatProtocol());
// Timestamp
stackState.MiddleProtocols.Add(new TimestampProtocol());
// Seq (this protocol will block broadcasted messages)
stackState.MiddleProtocols.Add(new SequenceProtocol());
// AES
AESProtocol aesP = new AESProtocol();
aesP.SetState((AESProtocolState)aesState.Clone());
stackState.MiddleProtocols.Add(aesP);
// Framing
stackState.MiddleProtocols.Add(new FramingProtocol());
}