public void testVerifyRightMessage()
{
PrivateKey privateKey = new PrivateKey();
PublicKey publicKey = privateKey.publicKey();
string message = "This is the right message";
Signature signature = Ecdsa.sign(message, privateKey);
Assert.True(Ecdsa.verify(message, signature, publicKey));
}
public void testVerifyWrongMessage()
{
PrivateKey privateKey = new PrivateKey();
PublicKey publicKey = privateKey.publicKey();
string message1 = "This is the right message";
string message2 = "This is the wrong message";
Signature signature = Ecdsa.sign(message1, privateKey);
Assert.False(Ecdsa.verify(message2, signature, publicKey));
}
public void SignTransaction(PrivateKey signingKey)
{
string fromAddressDER = BitConverter.ToString(FromAddress.toDer()).Replace("-", "");
string signingDER = BitConverter.ToString(signingKey.publicKey().toDer()).Replace("-", "");
if (fromAddressDER != signingDER)
{
throw new Exception("You cannot sign transactions for other wallet!");
}
string txHash = this.CalculateHash();
this.Signature = Ecdsa.sign(txHash, signingKey);
}
public void testDerConversion()
{
PrivateKey privateKey = new PrivateKey();
string message = "This is a text message";
Signature signature1 = Ecdsa.sign(message, privateKey);
byte[] der = signature1.toDer();
Signature signature2 = Signature.fromDer(der);
Assert.Equal(signature1.r, signature2.r);
Assert.Equal(signature1.s, signature2.s);
}
public void testBase64Conversion()
{
PrivateKey privateKey = new PrivateKey();
string message = "This is a text message";
Signature signature1 = Ecdsa.sign(message, privateKey);
string base64 = signature1.toBase64();
Signature signature2 = Signature.fromBase64(base64);
Assert.Equal(signature1.r, signature2.r);
Assert.Equal(signature1.s, signature2.s);
}
public void testAssign()
{
// Generated by: openssl ecparam -name secp256k1 -genkey -out privateKey.pem
string privateKeyPem = EllipticCurve.Utils.File.read("files/privateKey.pem");
PrivateKey privateKey = PrivateKey.fromPem(privateKeyPem);
string message = EllipticCurve.Utils.File.read("files/message.txt");
Signature signature = Ecdsa.sign(message, privateKey);
PublicKey publicKey = privateKey.publicKey();
Assert.True(Ecdsa.verify(message, signature, publicKey));
}
public string CreateSignature(string message)
{
Signature signature = Ecdsa.sign(message, PrivKey);
return(signature.toBase64());
}
public string CreateSignature(string message) => Ecdsa.sign(message, this.privateKey).toBase64();