private void PadAndSwitchToSqueezingPhase()
{
Debug.Assert(bitsInQueue < rate);
dataQueue[bitsInQueue >> 3] |= (byte)(1U << (bitsInQueue & 7));
if (++bitsInQueue == rate)
{
KeccakAbsorb(dataQueue, 0);
bitsInQueue = 0;
}
{
int full = bitsInQueue >> 6, partial = bitsInQueue & 63;
int off = 0;
for (int i = 0; i < full; ++i)
{
state[i] ^= PackingUtils.LE_To_UInt64(dataQueue, off);
off += 8;
}
if (partial > 0)
{
ulong mask = (1UL << partial) - 1UL;
state[full] ^= PackingUtils.LE_To_UInt64(dataQueue, off) & mask;
}
state[(rate - 1) >> 6] ^= (1UL << 63);
}
KeccakPermutation();
KeccakExtract();
bitsInQueue = rate;
squeezing = true;
}
private void KeccakAbsorb(byte[] data, int off)
{
int count = rate >> 6;
for (int i = 0; i < count; ++i)
{
state[i] ^= PackingUtils.LE_To_UInt64(data, off);
off += 8;
}
KeccakPermutation();
}
private void KeccakExtract()
{
PackingUtils.UInt64_To_LE(state, 0, rate >> 6, dataQueue, 0);
}