string sKeyPow = "10001"; //Pow
            string sKeyMod = "00AB25073527C39B1E934213870AB19D9CC4AF7C037F44F92462F7A896F6A22AF798741F39CD3F133BB96B13C11C8E105F231CBCBBDBA1F9BD876F07FF93151FB9E971331FB604C6A17998BDF772032DAA1DD17662D4926E8F502A22FBCE377A45595EAE7446727E777FDC4781E56E84548A9390855168DBA68E07E33D3B9BF097"; //Modulus
            string sCoded = "681FA51781F3AA4727C72374C6FE68A1C0BD3081DB1026C715CC791CA7F1CCF076143A9D15813641B2C533AE0064934B510ED42D430196A16EC9EE65743EA3E03CF674DABAF05FA647898344DB65D325A130B511E68A33E0995273D36049CBBF206E3BEE021360AACF03C12347D600DD70E34389A007704771525E11548E9DDB"; //Coded string

      static public string RSA_Decode_Old(string sInput, string sKeyExp, string sKeyMod)
        {
            //All strings are Hex

            string result = "";


            BigInteger biInput = BigInteger.Parse("0" + sInput, System.Globalization.NumberStyles.AllowHexSpecifier);
            BigInteger biKeyExp = BigInteger.Parse("0" + sKeyExp, System.Globalization.NumberStyles.AllowHexSpecifier);
            BigInteger biKeyMod = BigInteger.Parse("0" + sKeyMod, System.Globalization.NumberStyles.AllowHexSpecifier);

            //About hex: https://stackoverflow.com/questions/30119174/converting-a-hex-string-to-its-biginteger-equivalent-negates-the-value
            BigInteger bi = BigInteger.Pow(biInput, (int) biKeyExp);

            bi = bi % biKeyMod;

            result = bi.ToString();
            
            return result;
        }

        static public string RSA_Decode(string sInput, string sKeyExp, string sKeyMod)
        {

            RSACryptoServiceProvider RSA = new RSACryptoServiceProvider();
            //RSAParameters privateKey = RSA.ExportParameters(true);
            //RSAParameters publicKey = RSA.ExportParameters(false);
            RSAParameters RSAPrm = new RSAParameters();
            RSAPrm.Exponent = HexStrToByteArray(sKeyExp);
            RSAPrm.Modulus = HexStrToByteArray(sKeyMod);
            RSA.ImportParameters(RSAPrm);
            string publicxml = RSA.ToXmlString(false); //https://stackoverflow.com/questions/27383623/c-sharp-get-public-key-from-modulus-and-exponent
            byte[] result = RSA.Decrypt(HexStrToByteArray(sInput), false);


            return "";
        }