private void processBlock()
{
// buffer contents have been transferred to the _block[] array via
// processFilledBuffer
// compute and apply K^0
for (int i = 0; i < 8; i++)
{
_state[i] = _block[i] ^ (_K[i] = _hash[i]);
}
// iterate over the rounds
for (int round = 1; round <= ROUNDS; round++)
{
for (int i = 0; i < 8; i++)
{
_L[i] = 0;
_L[i] ^= C0[(int)(_K[(i - 0) & 7] >> 56) & 0xff];
_L[i] ^= C1[(int)(_K[(i - 1) & 7] >> 48) & 0xff];
_L[i] ^= C2[(int)(_K[(i - 2) & 7] >> 40) & 0xff];
_L[i] ^= C3[(int)(_K[(i - 3) & 7] >> 32) & 0xff];
_L[i] ^= C4[(int)(_K[(i - 4) & 7] >> 24) & 0xff];
_L[i] ^= C5[(int)(_K[(i - 5) & 7] >> 16) & 0xff];
_L[i] ^= C6[(int)(_K[(i - 6) & 7] >> 8) & 0xff];
_L[i] ^= C7[(int)(_K[(i - 7) & 7]) & 0xff];
}
Array.Copy(_L, 0, _K, 0, _K.Length);
_K[0] ^= _rc[round];
// apply the round transformation
for (int i = 0; i < 8; i++)
{
_L[i] = _K[i];
_L[i] ^= C0[(int)(_state[(i - 0) & 7] >> 56) & 0xff];
_L[i] ^= C1[(int)(_state[(i - 1) & 7] >> 48) & 0xff];
_L[i] ^= C2[(int)(_state[(i - 2) & 7] >> 40) & 0xff];
_L[i] ^= C3[(int)(_state[(i - 3) & 7] >> 32) & 0xff];
_L[i] ^= C4[(int)(_state[(i - 4) & 7] >> 24) & 0xff];
_L[i] ^= C5[(int)(_state[(i - 5) & 7] >> 16) & 0xff];
_L[i] ^= C6[(int)(_state[(i - 6) & 7] >> 8) & 0xff];
_L[i] ^= C7[(int)(_state[(i - 7) & 7]) & 0xff];
}
// save the current state
Array.Copy(_L, 0, _state, 0, _state.Length);
}
// apply Miuaguchi-Preneel compression
for (int i = 0; i < 8; i++)
{
_hash[i] ^= _state[i] ^ _block[i];
}
}
