public string CalculateHash(string message, string littleEndianKey)
{
var messageBytes = Encoding.ASCII.GetBytes(message);
var byteKey = BigInteger.Parse(littleEndianKey, NumberStyles.HexNumber).ToByteArray();
var hasher = new SipHash(byteKey);
var hash = hasher.ComputeHash(messageBytes);
var stringHash = BitConverter.ToUInt64(hash, 0).ToString("X");
return(PadHash(stringHash));
}
public void ReferenceTest()
{
ulong[] expected =
{
0x726fdb47dd0e0e31,
0x74f839c593dc67fd,
0x0d6c8009d9a94f5a,
0x85676696d7fb7e2d,
0xcf2794e0277187b7,
0x18765564cd99a68d,
0xcbc9466e58fee3ce,
0xab0200f58b01d137,
0x93f5f5799a932462,
0x9e0082df0ba9e4b0,
0x7a5dbbc594ddb9f3,
0xf4b32f46226bada7,
0x751e8fbc860ee5fb,
0x14ea5627c0843d90,
0xf723ca908e7af2ee,
0xa129ca6149be45e5,
0x3f2acc7f57c29bdb,
0x699ae9f52cbe4794,
0x4bc1b3f0968dd39c,
0xbb6dc91da77961bd,
0xbed65cf21aa2ee98,
0xd0f2cbb02e3b67c7,
0x93536795e3a33e88,
0xa80c038ccd5ccec8,
0xb8ad50c6f649af94,
0xbce192de8a85b8ea,
0x17d835b85bbb15f3,
0x2f2e6163076bcfad,
0xde4daaaca71dc9a5,
0xa6a2506687956571,
0xad87a3535c49ef28,
0x32d892fad841c342,
0x7127512f72f27cce,
0xa7f32346f95978e3,
0x12e0b01abb051238,
0x15e034d40fa197ae,
0x314dffbe0815a3b4,
0x027990f029623981,
0xcadcd4e59ef40c4d,
0x9abfd8766a33735c,
0x0e3ea96b5304a7d0,
0xad0c42d6fc585992,
0x187306c89bc215a9,
0xd4a60abcf3792b95,
0xf935451de4f21df2,
0xa9538f0419755787,
0xdb9acddff56ca510,
0xd06c98cd5c0975eb,
0xe612a3cb9ecba951,
0xc766e62cfcadaf96,
0xee64435a9752fe72,
0xa192d576b245165a,
0x0a8787bf8ecb74b2,
0x81b3e73d20b49b6f,
0x7fa8220ba3b2ecea,
0x245731c13ca42499,
0xb78dbfaf3a8d83bd,
0xea1ad565322a1a0b,
0x60e61c23a3795013,
0x6606d7e446282b93,
0x6ca4ecb15c5f91e1,
0x9f626da15c9625f3,
0xe51b38608ef25f57,
0x958a324ceb064572,
};
ulong k0 = 0x0706050403020100;
ulong k1 = 0x0f0e0d0c0b0a0908;
byte[] data = Enumerable.Range(0, expected.Length).Select(x => (byte)x).ToArray();
for (int i = 0; i != data.Length; ++i)
{
Assert.AreEqual(expected[i], SipHash.ComputeHash(data, 0, i, k0, k1));
}
}