using System;

using System.Security.Cryptography;

using System.Text;

​

public class Program

{

    public static void Main()

    {

        string ApplicationID = "3478628962486485";

        string Amount = "20";

        string AgentUserName = "Majd26";

        string IsConfirmed = "True";

        string AgentPassword = "P@ssw0rd";

        string ReceiverWallet = "0788387135";

        string SenderWallet = "0776801913";

        string TransactionTypeCode = "75";

        string Key = "ABC123";

        string Signature = SetSHA512(Key, Amount, IsConfirmed, AgentUserName, AgentPassword, ReceiverWallet, SenderWallet, TransactionTypeCode);

        Console.WriteLine("Key SHA256 is: " + Key);

        Console.WriteLine("Signature SHA512 is: " + Signature);

    }

​

    private static string SetSHA256(string ApplicationID)

    {

        using (var SHA256Hash = SHA256.Create())

        {

            byte[] sourceBytes = Encoding.UTF8.GetBytes(ApplicationID);

            byte[] hashBytes = SHA256Hash.ComputeHash(sourceBytes);

            return BitConverter.ToString(hashBytes).Replace("-", String.Empty);

        }

    }

​

    private static string SetSHA512(string Key, string Amount, string IsConfirmed, string AgentUserName, string AgentPassword, string ReceiverWallet, string SenderWallet, string TransactionTypeCode)

    {

        using (var SHA256Hash = SHA256.Create())

        {

            string Source = Key + Amount + IsConfirmed.ToString() + ReceiverWallet + SenderWallet + AgentUserName + AgentPassword + Key;

            Console.WriteLine("Source: " + Source);

            byte[] sourceBytes = Encoding.UTF8.GetBytes(Source);

            byte[] hashBytes = SHA256Hash.ComputeHash(sourceBytes);

            return BitConverter.ToString(hashBytes).Replace("-", String.Empty);

        }

    }

}