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);
}
}
byte[] commandBytes = new byte[2];
data.CopyTo(4, commandBytes, 0, 2);
mPackage.command = BitConverter.ToUInt16(commandBytes, 0);
byte[] bodyLengthBytes = new byte[2];
data.CopyTo(6, bodyLengthBytes, 0, 2);
UInt16 nBodyLength1 = BitConverter.ToUInt16(bodyLengthBytes, 0);
if (nBodyLength1 < 0 || nBodyLength1 + 8 > data.Length)
{
return(false);
}
mPackage.buffer = new byte[nBodyLength1];
data.CopyTo(8, mPackage.buffer, 0, nBodyLength1);
data.ClearBuffer(nBodyLength1 + 8);
return(true);
}
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 static bool DeEncryption(CircularBuffer <byte> data, NetReceivePackage mPackage)
{
if (data.Length <= 8)
{
return(false);
}
for (int i = 0; i < 4; i++)
{
if (data [i] != mCheck [i])
{
return(false);
}
}
byte[] commandBytes = new byte[2];
data.CopyTo(4, commandBytes, 0, 2);
mPackage.nUniqueId = BitConverter.ToUInt16(commandBytes, 0);
byte[] bodyLengthBytes = new byte[2];
data.CopyTo(6, bodyLengthBytes, 0, 2);
UInt16 nBodyLength1 = BitConverter.ToUInt16(bodyLengthBytes, 0);
if (nBodyLength1 < 0 || nBodyLength1 + 8 > data.Length)
{
return(false);
}
data.CopyTo(8, mPackage.buffer.Array, mPackage.buffer.Offset, nBodyLength1);
data.ClearBuffer(nBodyLength1 + 8);
ArraySegment <byte> mChe = new ArraySegment <byte> (mPackage.buffer.Array, mPackage.buffer.Offset, nBodyLength1);
mPackage.buffer = mChe;
return(true);
}
