public Signature Sign(PrivateKey priv)
{
var data = this.MagicHash();
var signer = new DgbECDsaSigner();
signer.Init(true, new ECPrivateKeyParameters(priv.BN, Config.ECDomain), true);
var signatureData = signer.GenerateSignature(data);
return(new Signature(signatureData[0], signatureData[1], data, priv.ToPublicKey()));
}
public bool Verify(string addressString, string signatureString)
{
var data = this.MagicHash();
var signature = Signature.FromCompact(Convert.FromBase64String(signatureString));
signature.Data = data;
var address = Address.FromString(addressString);
var signatureAddress = Address.FromPublicKey(signature.GetPublicKey());
if (signatureAddress.ToString() != addressString)
{
return(false);
}
var signer = new DgbECDsaSigner();
signer.Init(false, new ECPublicKeyParameters(signature.GetPublicKey().Point, Config.ECDomain));
return(signer.VerifySignature(this.MagicHash(), signature.R, signature.S));
}