public static ArraySegment <byte> Encryption(NetPackage mPackage)
{
int command = mPackage.command;
byte[] msg = mPackage.buffer;
int buffer_Length = mPackage.buffer.Length;
int sum_Length = 4 + buffer_Length;
mSendBuffer [0] = (byte)command;
mSendBuffer [1] = (byte)(command >> 8);
mSendBuffer [2] = (byte)(command >> 16);
mSendBuffer [3] = (byte)(command >> 24);
Array.Copy(msg, 0, mSendBuffer, 4, buffer_Length);
byte[] data = mAES.Encryption(mSendBuffer, 0, sum_Length);
Array.Copy(data, 0, mSendBuffer, 8, data.Length);
Array.Copy(mCheck, mSendBuffer, 4);
buffer_Length = data.Length;
mSendBuffer [4] = (byte)buffer_Length;
mSendBuffer [5] = (byte)(buffer_Length >> 8);
mSendBuffer [6] = (byte)(buffer_Length >> 16);
mSendBuffer [7] = (byte)(buffer_Length >> 24);
return(new ArraySegment <byte> (mSendBuffer, 0, buffer_Length + 8));
}
public static bool DeEncryption(CircularBuffer <byte> data, NetPackage mPackage)
{
if (data.Length <= 8)
{
return(false);
}
for (int i = 0; i < 4; i++)
{
if (data [i] != mCheck [i])
{
return(false);
}
}
int nBodyLength1 = data [4] | data [5] << 8 | data [6] << 16 | data [7] << 24;
if (nBodyLength1 <= 0 || nBodyLength1 + 8 > data.Length)
{
return(false);
}
if (nBodyLength1 > mReceiveBuffer.Length)
{
mReceiveBuffer = new byte[nBodyLength1];
}
data.CopyTo(8, mReceiveBuffer, 0, nBodyLength1);
data.ClearBuffer(nBodyLength1 + 8);
byte[] msg = mAES.Decryption(mReceiveBuffer, 0, nBodyLength1);
if (msg == null)
{
DebugSystem.LogBitStream("解包失败： ", mReceiveBuffer);
return(false);
}
int command = msg [0] | msg [1] << 8 | msg [2] << 16 | msg [3] << 24;
int nBodyLength2 = msg.Length - 4;
byte[] buffer = new byte[nBodyLength2];
Array.Copy(msg, 4, buffer, 0, nBodyLength2);
mPackage.command = command;
mPackage.buffer = buffer;
return(true);
}
public NetSendSystem(SocketSystem socketSys)
{
this.mSocketSystem = socketSys;
mWaitSendBuffer = new QueueArraySegment <byte> (64, ClientConfig.nMaxBufferSize);
mNetPackage = new NetPackage();
}