public static string GetSignature(payfortParams objMaster)
        {
            try
            {
                var ShaReqeustVar = "91wG1283xoSln4Db9Y7IPZ&?";
                var myArray       = new Dictionary <string, string>();
                myArray.Add("access_code", "a9U2M7lKbzlSOKzkyMli");
                //myArray.Add("amount", Convert.ToString(Convert.ToDouble(objMaster.amount) *100) );
                myArray.Add("amount", Convert.ToString(Convert.ToDouble(objMaster.amount)));
                myArray.Add("command", "PURCHASE");
                myArray.Add("currency", objMaster.currency);
                myArray.Add("customer_email", objMaster.customer_email);
                myArray.Add("language", "en");
                myArray.Add("merchant_identifier", "957fafda");
                myArray.Add("merchant_reference", objMaster.merchant_reference);
                myArray.Add("order_description", "iPhone 6-S");
                myArray.Add("payment_option", objMaster.payment_option);
                myArray.Add("return_url", "http://payfort.eumra.com/Default.aspx");
                //myArray.Add("return_url", "http://127.0.0.1:17040/Response.aspx");



                var baseString = "";

                foreach (var item in myArray)
                {
                    baseString += item.Key + "=" + item.Value;
                }

                var shastring = ShaReqeustVar + baseString + ShaReqeustVar;
                var shaPhrase = SHA256Util.sha256_hash(shastring);
                return(shaPhrase);
            }
            catch
            {
                return("");
            }
        }
        protected void Page_Load(object sender, EventArgs e)
        {
            payfortParams objMaster = new payfortParams();

            JSonOutput = GetSignature(objMaster);
        }