public unsafe void Transform(byte[] data)
{
if (data.Length > 32000)
{
inGame = true;
}
if (!inGame)
{
aesCipher.Transform(data, iv);
}
else
{
aesCipher.SimpleSubtractDecode(data, iv);
}
byte[] newIV = { 0xF2, 0x53, 0x50, 0xC6 };
for (int i = 0; i < IV_LENGTH; i++)
{
byte input = iv[i];
byte tableInput = shiftKey[input];
newIV[0] += (byte)(shiftKey[newIV[1]] - input);
newIV[1] -= (byte)(newIV[2] ^ tableInput);
newIV[2] ^= (byte)(shiftKey[newIV[3]] + input);
newIV[3] -= (byte)(newIV[0] - tableInput);
fixed(byte *ptr = newIV)
* (uint *)ptr = (*(uint *)ptr << 3) | (*(uint *)ptr >> 32 - 3); //RC6 ROL 3
}
Buffer.BlockCopy(newIV, 0, iv, 0, IV_LENGTH);
}
public unsafe void Transform(byte[] data)
{
aesCipher.Transform(data, iv);
byte[] newIV = { 0xF2, 0x53, 0x50, 0xC6 };
for (int i = 0; i < IV_LENGTH; i++)
{
byte input = iv[i];
byte tableInput = shiftKey[input];
newIV[0] += (byte)(shiftKey[newIV[1]] - input);
newIV[1] -= (byte)(newIV[2] ^ tableInput);
newIV[2] ^= (byte)(shiftKey[newIV[3]] + input);
newIV[3] -= (byte)(newIV[0] - tableInput);
fixed(byte *ptr = newIV)
* (uint *)ptr = (*(uint *)ptr << 3) | (*(uint *)ptr >> 32 - 3); //RC6 ROL 3
}
Buffer.BlockCopy(newIV, 0, iv, 0, IV_LENGTH);
}
