private void DGCDRBGTest(byte[] Seed, byte[] Expected)
{
DGCDrbg rGen = new DGCDrbg(new SHA256());
byte[] output = new byte[32];
rGen.Update(Seed);
for (int i = 0; i != 1024; i++)
rGen.Generate(output);
if (Compare.AreEqual(Expected, output) == false)
throw new Exception("DGCDRBG: Values are not equal! Expected: " + HexConverter.ToString(output) + " Received: " + HexConverter.ToString(Expected));
}
/// <summary>
/// Reset the RNGCryptoServiceProvider instance.
/// </summary>
public void Reset()
{
if (_digestEngine != null)
{
_digestEngine.Dispose();
_digestEngine = null;
}
if (_seedGenerator != null)
{
_seedGenerator.Dispose();
_seedGenerator = null;
}
_digestEngine = GetDigest(_digestType);
_rngGenerator = new DGCDrbg(_digestEngine);
if (_stateSeed != null)
{
_rngGenerator.Initialize(_stateSeed);
}
else
{
_seedGenerator = GetSeedGenerator(_seedType);
_rngGenerator.Initialize(_seedGenerator.GetSeed((_digestEngine.BlockSize * 2) + 8)); // 2 * block + counter (2*bs+8)
}
_rngGenerator.Generate(_byteBuffer);
_bufferIndex = 0;
}