/// <summary>
/// Squeezes internal state until at least specified number of bits is produced, and returns these bits.
/// </summary>
/// <param name="outputLength">The number of desired output bits.</param>
/// <returns>The byte array holding resulting bits.</returns>
protected virtual byte[] Squeeze(int outputLength)
{
int rate = State.Rate;
Bitstring q = new Bitstring();
while (true)
{
q.Append(State.Bitstring.Truncate(rate));
if (q.Length >= outputLength)
{
return((q.Length == outputLength) ? q.Bytes : q.Truncate(outputLength).Bytes);
}
Function();
}
}
private static bool RoundConstant(int t)
{
t = Bin.Mod(t, 255);
if (_roundConstants.ContainsKey(t))
{
return(_roundConstants[t]);
}
Bitstring r = new Bitstring("10000000", 8);
for (int i = 0; i < t; i++)
{
r.Prepend(Bitstring.Zero);
r[0] ^= r[8];
r[4] ^= r[8];
r[5] ^= r[8];
r[6] ^= r[8];
r = r.Truncate(8);
}
bool bit = r[0];
_roundConstants.Add(t, bit);
return(bit);
}
