public IActionResult GetECDSA()
{
var model = new IntegrityModel();
model.PrivateKeyBase64 = ECKey.GenerateKeyIntPrivateKey();
model.PublicKeyBase64 = ECKey.GetPublicKeyFromPrivateKeyEx(Base64Decode(model.PrivateKeyBase64));
var messageBase64 = Base64Encode(GetUniqueKey(32));
var privateKey = BigInteger.Parse(Base64Decode(model.PrivateKeyBase64));
var signature = ECKey.GenerateECDSASignature(messageBase64, privateKey.ToString());
model.Verified = ECKey.ValidECDSASignature(signature, messageBase64, model.PublicKeyBase64).ToString();
return(View("GetECDSA", model));
}