using System;

using System.IO;

using System.Security.Cryptography;

using System.Text;

​

public class Program

{

    public static void Main()

    {

        try

        {

            // Example input strings

            string ps = "$ANJOdYwA278oCf$V1$10000$Gcr9zML2bVT4+lcJg48rw358cWHvJ2A/yQU6DwK86lPxeRtZ";

            string js = "lHoiXsma7rmGPv5fHj1G4b8YlSc0nlT1fE8O7Zw9pAhoyhqAKsMXXAjD3bqCBk/wZWAI9lcc/qd9vKGZM8g4wAwxcGucLOmwOCI6k4cof6FkGplq82hCAKDCglSeKGfKD6qMCMbrjTOrfN/+4tKNni+PyRa67EolP55VypopjZQYFT6cNDq7YEtBv0u+aWBBZnWqML2YC88qqcLegObQ/N7v2pKoGaJU1Gn8E5S7ADLC+dtyfk/1Ehnc5YJtbqCAj+OG6myC6M8oP0Gw8f9CJfAnGwx1k1IMn44i+uevGXDUzhDNdQFWwNg6Ttsv7cBYetfD3pw7iCz48UBwl9PbW1IEIX+ncEB38/G9lagooxOB0GLUw+hxPFnP1yUaLzf0XSBHcddtn/OlQtiZoypBIUvGRd9cPjd8";

​

            // Decoding the string

            string decodedString = Decrypt(js, ps);

            Console.WriteLine("Decoded String: " + decodedString);

​

            // Encoding the string

            string encodedString = Encrypt(decodedString, ps);

            Console.WriteLine("Encoded String: " + encodedString);

        }

        catch (Exception e)

        {

            Console.WriteLine("Error: {0}", e.Message);

        }

    }

​

    internal static string Decrypt(string input, string key)

    {

        string result;

        try

        {

            using (MD5 md = MD5.Create())

            {

                using (TripleDES tripleDES = TripleDES.Create())

                {

                    tripleDES.Key = md.ComputeHash(Encoding.UTF8.GetBytes(key));

                    tripleDES.Mode = CipherMode.ECB;

                    tripleDES.Padding = PaddingMode.PKCS7;

​

                    using (ICryptoTransform cryptoTransform = tripleDES.CreateDecryptor())

                    {

                        byte[] array = Convert.FromBase64String(input);

                        byte[] bytes = cryptoTransform.TransformFinalBlock(array, 0, array.Length);

                        result = Encoding.UTF8.GetString(bytes);

                    }

                }

            }

        }

        catch (Exception exception_)

        {

            return exception_.ToString();

        }

        return result;

    }

​

    internal static string Encrypt(string input, string key)

    {

        string result;

        try

        {

            using (MD5 md = MD5.Create())

            {

                using (TripleDES tripleDES = TripleDES.Create())

                {

                    tripleDES.Key = md.ComputeHash(Encoding.UTF8.GetBytes(key));

                    tripleDES.Mode = CipherMode.ECB;

                    tripleDES.Padding = PaddingMode.PKCS7;

​

                    using (ICryptoTransform cryptoTransform = tripleDES.CreateEncryptor())

                    {

                        byte[] inputBytes = Encoding.UTF8.GetBytes(input);

                        byte[] encryptedBytes = cryptoTransform.TransformFinalBlock(inputBytes, 0, inputBytes.Length);

                        result = Convert.ToBase64String(encryptedBytes);

                    }

                }

            }

        }

        catch (Exception exception_)

        {

            return exception_.ToString();

        }

        return result;

    }

}

​