public static byte[] Blake2(byte[] bytes, int size = 128, IReadOnlyList <byte> key = null)
{
var config = new Blake2Core.Blake2BConfig()
{
OutputSizeInBits = size, Key = null
};
return(Blake2Core.Blake2B.ComputeHash(bytes, config));
}
public static byte[] Blake2Concat(byte[] bytes, int size = 128)
{
var config = new Blake2Core.Blake2BConfig()
{
OutputSizeInBits = size, Key = null
};
return(Blake2Core.Blake2B.ComputeHash(bytes, config).Concat(bytes).ToArray());
}
public static string GetStorageKey(Hasher type, byte[] bytes)
{
// byte[] key = new byte[2 * Consts.STORAGE_KEY_BYTELENGTH + 3];
string key = string.Empty;
if (type == Hasher.XXHASH)
{
var xxhash1 = XXHash.XXH64(bytes, 0, bytes.Length, 0);
byte[] bytes1 = new byte[] {
(byte)(xxhash1 & 0xFF),
(byte)((xxhash1 & 0xFF00) >> 8),
(byte)((xxhash1 & 0xFF0000) >> 16),
(byte)((xxhash1 & 0xFF000000) >> 24),
(byte)((xxhash1 & 0xFF00000000) >> 32),
(byte)((xxhash1 & 0xFF0000000000) >> 40),
(byte)((xxhash1 & 0xFF000000000000) >> 48),
(byte)((xxhash1 & 0xFF00000000000000) >> 56)
};
var xxhash2 = XXHash.XXH64(bytes, 0, bytes.Length, 1);
byte[] bytes2 = new byte[] {
(byte)(xxhash2 & 0xFF),
(byte)((xxhash2 & 0xFF00) >> 8),
(byte)((xxhash2 & 0xFF0000) >> 16),
(byte)((xxhash2 & 0xFF000000) >> 24),
(byte)((xxhash2 & 0xFF00000000) >> 32),
(byte)((xxhash2 & 0xFF0000000000) >> 40),
(byte)((xxhash2 & 0xFF000000000000) >> 48),
(byte)((xxhash2 & 0xFF00000000000000) >> 56)
};
foreach (var bt in bytes1)
{
key += bt.ToString("X2");
}
foreach (var bt in bytes2)
{
key += bt.ToString("X2");
}
}
else if (type == Hasher.BLAKE2)
{
var config = new Blake2Core.Blake2BConfig {
OutputSizeInBytes = 16
};
var hash = Blake2Core.Blake2B.ComputeHash(bytes, 0, bytes.Length, config);
foreach (var bt in hash)
{
key += bt.ToString("X2");
}
}
return(key);
}
