public static bool VerifySignature(BigInteger[] publicKey, byte[] hash, BigInteger r, BigInteger s)
{
if (r >= Secp256k1.q || r.IsZero || s >= Secp256k1.q || s.IsZero)
{
return(false);
}
var z = Bytes32.ConvetToBigInteger(hash);;
var w = s.ModInverse(Secp256k1.q);
var u1 = (z * w) % Secp256k1.q;
var u2 = (r * w) % Secp256k1.q;
bool isZero;
var pt = Calculate.pointPlus(Calculate.getPublicByPrivate(u1), Calculate.getMulValue(u2, publicKey), out isZero);// (publicKey.Multiply(u2));
if (pt == null)
{
return(false);
}
else
{
var pmod = pt[0] % Secp256k1.q;
return(pmod == r);
}
}
public static BigInteger[] GenerateSignature(BigInteger privateKey, byte[] hash)
{
BigInteger?k = null;
for (int i = 0; i < 100; i++)
{
byte[] kBytes = new byte[33];
rngCsp.GetBytes(kBytes);
kBytes[32] = 0;
k = new BigInteger(kBytes);
var z = Bytes32.ConvetToBigInteger(hash);
if (k.Value.IsZero || k >= Secp256k1.q)
{
continue;
}
var r = Calculate.getPublicByPrivate(k.Value)[0] % Secp256k1.q;
if (r.IsZero)
{
continue;
}
var ss = (z + r * privateKey);
var s = (ss * (k.Value.ModInverse(Secp256k1.q))) % Secp256k1.q;
if (s.IsZero)
{
continue;
}
return(new BigInteger[] { r, s });
}
throw new Exception("Unable to generate signature");
}
public static void SecretFileF()
{
while (true)
{
Console.WriteLine($"输入助记词！");
SHA256 sha256 = new SHA256Managed();
byte[] hash = sha256.ComputeHash(Encoding.UTF8.GetBytes(Console.ReadLine()));
// var privateKey = HexToBigInteger.inputHex("e8d96a53e9c597e5a1e2ceaddd0b5ebe75588b26e71846b46a9b5f3666409355");
//var inputSting = "e8d96a53e9c597e5a1e2ceaddd0b5ebe75588b26e71846b46a9b5f3666409355";
//var inputSting = ;
var privateKey = Bytes32.ConvetToBigInteger(hash);
privateKey = privateKey % Secp256k1.q;
var privateByte = hash;
{
var resultAdd = Calculate.BiteSplitJoint(new byte[] { 0x80 }, privateByte);
resultAdd = Calculate.BiteSplitJoint(resultAdd, new byte[] { 0x01 });
byte[] chechHash = Calculate.GetCheckSum(resultAdd);
resultAdd = Calculate.BiteSplitJoint(resultAdd, chechHash);
var privateKey1 = Calculate.Encode(resultAdd);
Console.WriteLine($"您压缩后的私钥为{privateKey1}");
}
{
var resultAdd = Calculate.BiteSplitJoint(new byte[] { 0x80 }, privateByte);
byte[] chechHash = Calculate.GetCheckSum(resultAdd);
resultAdd = Calculate.BiteSplitJoint(resultAdd, chechHash);
var privateKey1 = Calculate.Encode(resultAdd);
Console.WriteLine($"您压缩前的私钥为{privateKey1}");
}
var publicKey = Calculate.getPublicByPrivate(privateKey);
if (publicKey != null)
{
var walletOfcompressed = PublicKeyF.GetAddressOfcompressed(publicKey);
Console.WriteLine($"压缩钱包地址为：{walletOfcompressed}");
var walletOfUncompressed = PublicKeyF.GetAddressOfUncompressed(publicKey);
Console.WriteLine($"非压缩钱包地址为：{walletOfUncompressed}");
}
else
{
Console.WriteLine($"您输入了零元！");
}
Console.WriteLine("E/Exit,退出当前");
if (Console.ReadLine().ToUpper() == "E")
{
break;
}
}
//Console.WriteLine($"您的非私钥为80{HexToBigInteger.bigIntergetToHex(publicKey[0])}01");
//var publicKeyName = getPublicKeyName(publicKey);
//Console.WriteLine($"您的公钥16进制为{publicKeyName}");
//if (publicKey != null)
// Console.WriteLine($"您的公钥10进制为:{publicKey[0]},{publicKey[1]}");
//Random rm = new Random(DateTime.Now.GetHashCode());
//for (var i = 1; i <= 256 * 256; i++)
//{
// var M = getPublicByPrivate(new BigInteger(i));
//}
// throw new NotImplementedException();
}
public static string verify_message(string signature, string message, int addrtype)
{
byte[] sig;
//try
{
sig = Convert.FromBase64String(signature);
}
//catch (err)
//{
// return false;
//}
if (sig.Length != 65)
{
return("Error e");
}
// extract r,s from signature
var r = Bytes32.ConvetToBigInteger(sig.Skip(1).Take(32).ToArray());
var s = Bytes32.ConvetToBigInteger(sig.Skip(33).Take(32).ToArray());
// var s = BigInteger.fromByteArrayUnsigned(sig.slice(33, 33 + 32));
// get recid
// var compressed = false;
var nV = Convert.ToInt32(sig[0]);
if (nV < 27 || nV >= 35)
{
return("Error e");
}
if (nV >= 31)
{
// compressed = true;
nV -= 4;
}
var recid = new BigInteger(nV - 27);
{
//var z = Bytes32.ConvetToBigInteger(hash); ;
//var w = s.ModInverse(Secp256k1.q);
//var u1 = (z * w) % Secp256k1.q;
//var u2 = (r * w) % Secp256k1.q;
//bool isZero;
//var pt = Calculate.pointPlus(Calculate.getPublicByPrivate(u1), Calculate.getMulValue(u2, publicKey), out isZero);// (publicKey.Multiply(u2));
//if (pt == null)
//{
// return false;
//}
//else
//{
// var pmod = pt[0] % Secp256k1.q;
// return pmod == r;
//}
}
//var ecparams = getSECCurveByName("secp256k1");
//var curve = ecparams.getCurve();
//var a = curve.getA().toBigInteger();
//var b = curve.getB().toBigInteger();
//var p = curve.getQ();
//var G = ecparams.getG();
//var order = ecparams.getN();
//var x = r.add(order.multiply(recid.divide(BigInteger.valueOf(2))));
var x = recid / 2 * Secp256k1.q + r;
//Calculate.getMulValue(,recid / 2);
// var alpha = x.multiply(x).multiply(x).add(a.multiply(x)).add(b).mod(p);
var alpha = (x * x * x + Secp256k1.a * x + Secp256k1.b) % Secp256k1.p;
//var beta = alpha.modPow(p.add(BigInteger.ONE).divide(BigInteger.valueOf(4)), p);
var beta = BigInteger.ModPow(alpha, (Secp256k1.p + 1) / 4, Secp256k1.p);//Calculate.Pow((Secp256k1.p + 1) / 4, alpha);
var y = (beta - recid).IsEven ? beta : (Secp256k1.p - beta);
//var y = beta.subtract(recid).isEven() ? beta : p.subtract(beta);
// var R = new ECPointFp(curve, curve.fromBigInteger(x), curve.fromBigInteger(y));
// var e = BigInteger.fromByteArrayUnsigned(msg_digest(message));
var e = Bytes32.ConvetToBigInteger(msg_digest(message));
// var minus_e = BigInteger.Negate(e)+ % Secp256k1.q;
var minus_e = ((Secp256k1.q - e) % Secp256k1.q + Secp256k1.q) % Secp256k1.q;
var inv_r = ECCMain.Inverse.ex_gcd(r, Secp256k1.q);////BigInteger.mo r.modInverse(order);
//var Q = (R.multiply(s).add(G.multiply(minus_e))).multiply(inv_r);
bool isZero;
var Q__ = Calculate.pointPlus(Calculate.getMulValue(s, new BigInteger[] { x, y }),
Calculate.getPublicByPrivate(minus_e), out isZero);
if (isZero)
{
return("Error e");
}
else
{
var Q = Calculate.getMulValue(inv_r, Q__);
var public_key = PublicKeyF.GetAddressOfcompressed(Q);
if (addrtype == 0)
{
return(PublicKeyF.GetAddressOfUncompressed(Q));
}
else if (addrtype == 1)
{
return(PublicKeyF.GetAddressOfcompressed(Q));
}
else
{
return("Error e");
}
}
}
