public static ulong[] ErrorPropagationText()
{
ulong[] text = FillText(GetRandomBlock);
uint[] key = new uint[KeySegmentsCount];
ulong[,] result = new ulong[N, BlockBitLength];
Parallel.For(0, N, i =>
{
Parallel.For(0, BlockBitLength, j =>
{
result[i, j] = Encode(text[i], key) ^ Encode(text[i] ^ (0 | (uint)1 << (j % BlockBitLength)), key);
});
});
return(result.Cast <ulong>().ToArray());
}
public static ulong[] ErrorPropagationKey()
{
ulong text = 0;
BitArray[] keys = new BitArray[N].Select(_ => GetRandomKey()).ToArray();
ulong[,] result = new ulong[N, KeyBitLength];
Parallel.For(0, N, i =>
{
for (int j = 0; j < KeyBitLength; j++)
{
BitArray delta_key = new BitArray(KeyBitLength);
delta_key[j] = true;
result[i, j] = Encode(text, keys[i]) ^ Encode(text, ((BitArray)keys[i].Clone()).Xor(delta_key));
}
});
return(result.Cast <ulong>().ToArray());
}