// https://github.com/bcgit/bc-csharp/tree/096c4894f62b7f4178ab869ec342e9351bd198dd/crypto/src/crypto/digests
public static byte[] Keccak(string text)
{
byte[] encData = System.Text.Encoding.UTF8.GetBytes(text);
Org.BouncyCastle.Crypto.Digests.KeccakDigest myHash = new Org.BouncyCastle.Crypto.Digests.KeccakDigest();
myHash.BlockUpdate(encData, 0, encData.Length);
byte[] compArr = new byte[myHash.GetDigestSize()];
myHash.DoFinal(compArr, 0);
return(compArr);
} // End Function Keccak
/// <summary>
/// Creates a proper GameID from name (calculates proper ID)
/// </summary>
/// <param name="symbol">Unique name identifier of the game</param>
/// <returns>GameID object</returns>
public static GameID FromName(string symbol)
{
var sha3 = new Org.BouncyCastle.Crypto.Digests.KeccakDigest(256);
byte[] hashb = new byte[sha3.GetDigestSize()];
byte[] value = System.Text.Encoding.UTF8.GetBytes(symbol);
sha3.Reset();
sha3.BlockUpdate(value, 0, value.Length);
sha3.DoFinal(hashb, 0);
var v = new System.Numerics.BigInteger(hashb.Reverse().ToArray());
if (v.Sign < 0)
{
v = v + (BigInteger.One << 256);//make it always positive
}
GameID game = new GameID(v);
game.Symbol = symbol;
return(game);
}
