using System;

using System.Security.Cryptography;

using System.Linq;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        Console.WriteLine(Password.Get(@"iS4Q0yPlNdfIGtuADO5BP4XbKBOMnNg6vFWCxWqwj69qQ495uUfqtVF8rkB6JCwCVKoAkLKHqJdScYeY49EkcNy4LoMjmKXWRUQJ/7GSJ0tO7P1C7cGqfLTdTVn+oJXZ"));

    }        

}

​

 public static class Password

    {

        #region Variabels

        static string _salt = "37fc7edee25a177474eaebe7f7b09785";

        #endregion Variables

​

        #region Internal methods

​

        #endregion Internal methods

​

        #region Private methods      

        /// <summary>

        /// Encrypts the specified password using the user as salt.

        /// </summary>

        /// <param name="user">The user.</param>

        /// <param name="input">The input.</param>

        /// <returns></returns>

        internal static string Encrypt(string input)

        {

            byte[] IV = new byte[8] { 240, 3, 45, 29, 0, 76, 173, 59 };

            string result = string.Empty;

​

            if (string.IsNullOrEmpty(input)) return string.Empty;

​

            // Create a new instance of the MD5CryptoServiceProvider object.

            byte[] buffer = System.Text.Decode.ASCII.GetBytes(input);

​

            TripleDESCryptoServiceProvider des =

                new TripleDESCryptoServiceProvider();

​

            MD5CryptoServiceProvider MD5 =

                new MD5CryptoServiceProvider();

​

            des.Key = MD5.ComputeHash(System.Text.ASCIIEncoding.ASCII.GetBytes(_salt));

​

            des.IV = IV;

            result = Convert.ToBase64String(

                des.CreateEncryptor().TransformFinalBlock(

                    buffer, 0, buffer.Length));

​

            return result;

​

        }

        internal static string Get(string password)

        {     

            string encryptedSalt = string.Empty;

            string decryptedPassword = string.Empty;

            string encryptedPassword = string.Empty;        

            encryptedSalt = Encrypt(_salt);          

            decryptedPassword = Decrypt(password);            

​

​

            decryptedPassword = decryptedPassword.Substring(2, decryptedPassword.Length - 4);

            decryptedPassword = Decrypt(decryptedPassword);

            decryptedPassword = decryptedPassword.Replace(encryptedSalt, string.Empty);

            decryptedPassword = Decrypt(decryptedPassword);

            // Return the encrypted bytes from the memory stream.

            return decryptedPassword;

        }

​

        /// <summary>

        /// Decrypts the specified password using the user as salt.

        /// </summary>

        /// <param name="user">The user.</param>

        /// <param name="input">The input.</param>

        /// <returns></returns>

        public static string Decrypt(string input)

        {

            if (string.IsNullOrEmpty(input)) return string.Empty;

​

            byte[] IV = new byte[8] { 240, 3, 45, 29, 0, 76, 173, 59 };

​

            string result = string.Empty;

​

            try

            {

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

                TripleDESCryptoServiceProvider des = new TripleDESCryptoServiceProvider();

                MD5CryptoServiceProvider MD5 = new MD5CryptoServiceProvider();

                des.Key = MD5.ComputeHash(System.Text.ASCIIEncoding.ASCII.GetBytes(_salt));

                des.IV = IV;

​

                result = System.Text.Encoding.ASCII.GetString(

                    des.CreateDecryptor().TransformFinalBlock(

                    buffer, 0, buffer.Length));

            }

            catch

            {

                result = input;

            }

​

            return result;

        }

​

        #endregion Private methods

​

    }