private void ResetTest()
{
// Generate a non-zero key
byte[] key = new byte[32];
for (byte i = 0; i < key.Length; i++)
{
key[i] = i;
}
// Generate some non-zero input longer than the key
byte[] input = new byte[key.Length + 1];
for (byte i = 0; i < input.Length; i++)
{
input[i] = i;
}
// Hash the input
Blake2bDigest digest = new Blake2bDigest(key);
digest.BlockUpdate(input, 0, input.Length);
byte[] hash = new byte[digest.GetDigestSize()];
digest.DoFinal(hash, 0);
// Using a second instance, hash the input without calling doFinal()
Blake2bDigest digest1 = new Blake2bDigest(key);
digest1.BlockUpdate(input, 0, input.Length);
// Reset the second instance and hash the input again
digest1.Reset();
digest1.BlockUpdate(input, 0, input.Length);
byte[] hash1 = new byte[digest.GetDigestSize()];
digest1.DoFinal(hash1, 0);
// The hashes should be identical
if (!Arrays.AreEqual(hash, hash1))
{
Fail("state was not reset");
}
}
public static byte[] Hash(byte[] input)
{
Blake2bDigest digest = new Blake2bDigest(256);
digest.BlockUpdate(input, 0, input.Length);
byte[] hash = new byte[digest.GetDigestSize()];
digest.DoFinal(hash, 0);
return(hash);
}
public static byte[] Hash(byte[] bytes, int bitLength)
{
var digest = new Blake2bDigest(bitLength);
var output = new byte[digest.GetDigestSize()];
digest.BlockUpdate(bytes, 0, bytes.Length);
digest.DoFinal(output, 0);
return(output);
}
public static byte[] Blake2b(byte[] data)
{
Blake2bDigest black2b = new Blake2bDigest(32 * 8);
black2b.BlockUpdate(data, 0, data.Length);
var hashed = new byte[black2b.GetDigestSize()];
black2b.DoFinal(hashed, 0);
return(hashed);
}
public uint256 GetHash()
{
var blake2b = new Blake2bDigest(null, 32, null, _personalization);
var hash = new byte[blake2b.GetDigestSize()];
blake2b.BlockUpdate(((MemoryStream)Inner).ToArrayEfficient(), 0, (int)Inner.Length);
blake2b.DoFinal(hash, 0);
return(new uint256(hash));
}
public override byte[] ComputeHash(byte[] input, int offset, int count)
{
var blake2b = new Blake2bDigest(DigestSize);
var result = new byte[blake2b.GetDigestSize()];
blake2b.BlockUpdate(input, offset, count);
blake2b.DoFinal(result, 0);
return(result);
}
protected static byte[] ComputeHash(byte[] message, int bits)
{
var digest = new Blake2bDigest(bits);
var output = new byte[digest.GetDigestSize()];
byte[] msg = message ?? new byte[0];
digest.BlockUpdate(msg, 0, msg.Length);
digest.DoFinal(output, 0);
return(output);
}
public static byte[] Compute(byte[] input, int offset, int count, int digestSize)
{
var blake2b = new Blake2bDigest(digestSize);
var result = new byte[blake2b.GetDigestSize()];
blake2b.BlockUpdate(input, offset, count);
blake2b.DoFinal(result, 0);
return(result);
}
private void CheckClone(Blake2bDigest blake2bCloneSource, byte[] expected)
{
byte[] message = Hex.Decode(keyedTestVectors[3, 0]);
blake2bCloneSource.BlockUpdate(message, 0, message.Length);
byte[] hash = new byte[blake2bCloneSource.GetDigestSize()];
Blake2bDigest digClone = new Blake2bDigest(blake2bCloneSource);
blake2bCloneSource.DoFinal(hash, 0);
if (!AreEqual(expected, hash))
{
Fail("clone source not correct");
}
digClone.DoFinal(hash, 0);
if (!AreEqual(expected, hash))
{
Fail("clone not correct");
}
}