| private DecryptBlock ( byte input, int inOff, byte outBytes, int outOff ) : int | ||
| input | byte | |
| inOff | int | |
| outBytes | byte | |
| outOff | int | |
| return | int | |
private int DecryptBlock(
byte[] input,
int inOff,
byte[] outBytes,
int outOff)
{
int A = BytesToWord(input, inOff);
int B = BytesToWord(input, inOff + 4);
for (int i = _noRounds; i >= 1; i--)
{
B = RotateRight(B - _S[2*i+1], A) ^ A;
A = RotateRight(A - _S[2*i], B) ^ B;
}
WordToBytes(A - _S[0], outBytes, outOff);
WordToBytes(B - _S[1], outBytes, outOff + 4);
return 2 * 4;
}