/// <summary>
/// After being initialized with a key, the schedule (p-array) and s-boxes needs some
/// work from the Blowfish engine to finish setting up.
/// </summary>
void Setup()
{
// The setup process starts with the all zero string.
UInt64 bitScape = 0;
// To set up the schedule (p-arrays),
for (int i = 0; i < 9; i++)
{
bitScape = BlowfishEngine.Encrypt(ByteOperations.Swap(bitScape), this);
Schedule.Set(i * 2, ByteOperations.Left(bitScape));
Schedule.Set(i * 2 + 1, ByteOperations.Right(bitScape));
bitScape = ByteOperations.Swap(bitScape);
}
// To finish the s-boxes
for (int i = 0; i < 1024;)
{
bitScape = BlowfishEngine.Encrypt(ByteOperations.Swap(bitScape), this);
sbox[i / 256, i % 256] = ByteOperations.Left(bitScape);
i++;
sbox[i / 256, i % 256] = ByteOperations.Right(bitScape);
i++;
bitScape = ByteOperations.Swap(bitScape);
}
}