public static string GetPublicKey(string privateKey)
{
var hexPrivateKey = ReferenceLib.ValidateAndGetHexPrivateKey(privateKey, 0x00);
if (hexPrivateKey == null)
{
throw new Exception("error");
}
var ps = Org.BouncyCastle.Asn1.Sec.SecNamedCurves.GetByName("secp256k1");
Org.BouncyCastle.Math.BigInteger Db = new Org.BouncyCastle.Math.BigInteger(hexPrivateKey);
ECPoint dd = ps.G.Multiply(Db);
byte[] pubaddr = new byte[65];
byte[] Y = dd.Y.ToBigInteger().ToByteArray();
Array.Copy(Y, 0, pubaddr, 64 - Y.Length + 1, Y.Length);
byte[] X = dd.X.ToBigInteger().ToByteArray();
Array.Copy(X, 0, pubaddr, 32 - X.Length + 1, X.Length);
pubaddr[0] = 4;
var publicKey = ByteArrayToString(pubaddr);
return(publicKey);
}
public static string CreateAddress(string publicHash)
{
byte[] publicHashHex = ReferenceLib.ValidateAndGetHexPublicHash(publicHash);
if (publicHashHex == null)
{
throw new Exception("error");
}
byte[] hex2 = new byte[21];
Array.Copy(publicHashHex, 0, hex2, 1, 20);
//var cointype = 0; //MainNet
var cointype = 111;//TextNet
hex2[0] = (byte)(cointype & 0xff);
var address = ReferenceLib.ByteArrayToBase58Check(hex2);
return(address);
}
public static string GetPublicHash(string publicKey)
{
byte[] publicHex = ReferenceLib.ValidateAndGetHexPublicKey(publicKey);
if (publicHex == null)
{
throw new Exception("error");
}
SHA256CryptoServiceProvider sha256 = new SHA256CryptoServiceProvider();
byte[] shaofpubkey = sha256.ComputeHash(publicHex);
RIPEMD160 rip = System.Security.Cryptography.RIPEMD160.Create();
byte[] ripofpubkey = rip.ComputeHash(shaofpubkey);
var publicHash = ByteArrayToString(ripofpubkey);
return(publicHash);
}
public static string WifToPrivateKey()
{
var wif = "5KTiwJBGNRMQc1ACkm18FKzjT7VP1ezaVU5cHC9vWRMX2zDkKPz";
var hex = ReferenceLib.Base58ToByteArray(wif);
if (hex == null)
{
var length = wif.Length;
if (length >= 50 && length <= 52)
{
throw new Exception("Private key is not valid");
}
}
if (hex.Length != 33)
{
throw new Exception("WIF private key is not valid, wrong byte count, should be 33, was " + hex.Length);
}
var privateKey = ByteArrayToString(hex, 1);
return(privateKey);
}