public DigitalSignature Sign(string DATA_TO_ENCRYPT = "How are you")
        {
            // Encrypt with the certificate and decrypt with the combo pfx
            var signature = DigitalSignature.BuildSignedMessage(new X509Certificate2(_senderPrivatePublicPath), new X509Certificate2(_recieverPublicPath), DATA_TO_ENCRYPT);

            var untampered = X509Encryption.VerifySignature(new X509Certificate2(_senderPrivatePublicPath), signature.Cipher, signature.Signature);

            Assert.IsTrue(untampered);

            return(signature);
        }