| private decryptBlock ( byte inBytes, int inOff, byte outBytes, int outOff ) : int | ||
| inBytes | byte | |
| inOff | int | |
| outBytes | byte | |
| outOff | int | |
| return | int | |
private int decryptBlock(
byte[] inBytes,
int inOff,
byte[] outBytes,
int outOff)
{
// Pack bytes into integers
uint v0 = Pack.BE_To_UInt32(inBytes, inOff);
uint v1 = Pack.BE_To_UInt32(inBytes, inOff + 4);
uint sum = d_sum;
for (int i = 0; i != rounds; i++)
{
v1 -= ((v0 << 4) + _c) ^ (v0 + sum) ^ ((v0 >> 5) + _d);
v0 -= ((v1 << 4) + _a) ^ (v1 + sum) ^ ((v1 >> 5) + _b);
sum -= delta;
}
Pack.UInt32_To_BE(v0, outBytes, outOff);
Pack.UInt32_To_BE(v1, outBytes, outOff + 4);
return block_size;
}
}