private void calcPubKey(bool comp, secp256k1Wrap secp256k1)
{
//ECPoint point = ecParams.G.Multiply(new BigInteger(1, privKey));
this.pubKey = HexString.ToByteArray(secp256k1.CreatePubKey(HexString.FromByteArray(privKey)));
compress(comp);
}
public CSPRNGServer()
{
Console.WriteLine(Directory.GetCurrentDirectory());
//the CSPRNG is seeded using a thread based seed generator in BC
byte[] seedarray = new byte[512];
digest = new Sha512Digest();
gen = new DigestRandomGenerator(digest);
//add some additional entropy to the seed
for (int i = 0; i < 48; i++)
{
gen.AddSeedMaterial(DateTime.Now.Ticks);
}
int threadId = System.Threading.Thread.CurrentThread.ManagedThreadId;
gen.AddSeedMaterial(threadId);
instcheck++;
secp256k1 = new secp256k1Wrap();
//load database commands from files
}
public BIP32(string privKey, string pubKey, secp256k1Wrap psecp256k1)
{
secp256k1 = psecp256k1;
byte[] privKeyRaw = parseKey(privKey);
byte[] pubKeyRaw = parseKey(pubKey);
Initialise(privKeyRaw, pubKeyRaw);
}
public static string GetSignature2(string key, string hashForSigning, secp256k1Wrap secp256k1)
{
string sig = secp256k1.Sign(key, hashForSigning);
byte[] b = HexString.ToByteArray(sig);
int slen = b[1];
int srlen = b[3];
int sslen = b[5 + srlen];
int ssend = 6 + srlen + sslen;
int pad = ((b.Length - ssend) * 2);
sig = sig.Remove(sig.Length - pad);
sig = sig + "01";
return(sig);
}
public BIP32(string sKey, secp256k1Wrap psecp256k1 )
{
secp256k1 = psecp256k1;
SHA256 sha = SHA256.Create();
byte[] decoded = Base58String.ToByteArray(sKey);
if (decoded.Length != 82) throw new Exception("Not enough data");
byte[] checksum = decoded.Skip(78).Take(4).ToArray();
byte[] bytes = decoded.Take(78).ToArray();
byte[] hash = sha.ComputeHash(sha.ComputeHash(bytes));
if (hash[0] != checksum[0] || hash[1] != checksum[1] || hash[2] != checksum[2] || hash[3] != checksum[3])
{
throw new Exception("Invalid checksum");
}
Initialise(bytes);
}
public ECKeyPair(Byte[] privKey, Byte[] pubKey = null, Boolean compressed = false, bool nopublickey = false, secp256k1Wrap secp256k1 = null)
{
this.privKey = privKey;
if (pubKey != null)
{
this.pubKey = pubKey;
this.isCompressed = pubKey.Length <= 33;
}
else
{
if (!nopublickey)
{
calcPubKey(compressed, secp256k1);
}
}
}
public BIP32(secp256k1Wrap psecp256k1)
{
secp256k1 = psecp256k1;
}
