private void ParallelTest()
{
CSPRng rng = new CSPRng();
byte[] key = rng.GetBytes(32);
byte[] iv = rng.GetBytes(8);
byte[] data = rng.GetBytes(2048);
byte[] enc = new byte[2048];
byte[] dec = new byte[2048];
rng.Dispose();
using (ChaCha chacha = new ChaCha(10))
{
// encrypt linear
chacha.Initialize(new KeyParams(key, iv));
chacha.IsParallel = false;
chacha.Transform(data, enc);
// decrypt parallel
chacha.Initialize(new KeyParams(key, iv));
chacha.IsParallel = true;
chacha.ParallelBlockSize = 2048;
chacha.Transform(enc, dec);
}
if (!Compare.AreEqual(data, dec))
throw new Exception("ChaCha: Decrypted arrays are not equal!");
}
private void VectorTest(int Rounds, byte[] Key, byte[] Vector, byte[] Input, byte[] Output)
{
byte[] outBytes = new byte[Input.Length];
using (ChaCha chacha = new ChaCha(Rounds))
{
chacha.Initialize(new KeyParams(Key, Vector));
chacha.Transform(Input, 0, Input.Length, outBytes, 0);
if (Compare.AreEqual(outBytes, Output) == false)
throw new Exception("ChaChaVector: Encrypted arrays are not equal! Expected: " + HexConverter.ToString(Output) + " Received: " + HexConverter.ToString(outBytes));
chacha.Initialize(new KeyParams(Key, Vector));
chacha.Transform(Output, 0, Output.Length, outBytes, 0);
}
if (Compare.AreEqual(outBytes, Input) == false)
throw new Exception("ChaChaVector: Decrypted arrays are not equal! Expected: " + HexConverter.ToString(Input) + " Received: " + HexConverter.ToString(outBytes));
}