// Test encryption
static void TestCryptography()
{
IHashProvider p;
// Generate a random set of bytes
byte[] Bytes = SecureRandom.Bytes(32);
// Write bytes to console
Console.WriteLine($"Randomly generated bytes: {Encoding.ByteArrayToHexString(Bytes)}");
// Keccak the generated bytes
byte[] KeccakBytes = Keccak.keccak(Bytes);
// Write keccak bytes to console
Console.WriteLine($"Keccak: {Encoding.ByteArrayToHexString(KeccakBytes)}");
// Blake256 the generated bytes
p = new Blake();
byte[] BlakeBytes = p.Hash(Bytes);
// Write blake256 bytes to console
Console.WriteLine($"Blake: {Encoding.ByteArrayToHexString(BlakeBytes)}");
// Skein the generated bytes
p = new Skein();
byte[] SkeinBytes = p.Hash(Bytes);
// Write skein bytes to console
Console.WriteLine($"Skein: {Encoding.ByteArrayToHexString(SkeinBytes)}");
// Groestl the generated bytes
p = new Groestl();
byte[] GroestlBytes = p.Hash(Bytes);
// Write groestl bytes to console
Console.WriteLine($"Groestl: {Encoding.ByteArrayToHexString(GroestlBytes)}");
// JH the generated bytes
p = new JH();
byte[] JHBytes = p.Hash(Bytes);
// Write JH bytes to console
Console.WriteLine($"JH: {Encoding.ByteArrayToHexString(JHBytes)}");
// Base58 the generated bytes
string Base58String = Base58.Encode(Bytes);
// Write base58 bytes to console
Console.WriteLine($"Base58: {Base58String}");
Console.WriteLine();
}
/* CryptoNight Step 5: Apply Keccak to the state again, and then
* use the resulting data to select which of four finalizer
* hash functions to apply to the data (Blake, Groestl, JH,
* or Skein). Use this hash to squeeze the state array down
* to the final 32 byte hash output.
*/
public static byte[] HashFinalState(CNState cnState)
{
/* Get the state buffer as an array of ulongs rather than bytes */
ulong[] hashState = cnState.GetHashState();
Keccak.Keccakf(hashState, 24);
/* Set the state buffer from the coerced hash state */
cnState.SetHashState(hashState);
/* Get the actual state buffer finally */
byte[] state = cnState.GetState();
/* Choose the final hashing function to use based on the value of
* state[0] */
switch (state[0] % 4)
{
case 0:
{
return(Blake.Hash(state));
}
case 1:
{
return(Groestl.Hash(state));
}
case 2:
{
return(JH.Hash(state));
}
default:
{
return(Skein.Hash(state));
}
}
}