using System;

using System.Security.Cryptography;

using System.Text;

​

public class Program

{

    public static string CalculateMD5Hash(string input)

    {

        // step 1, calculate MD5 hash from input

        MD5 md5 = System.Security.Cryptography.MD5.Create();

        byte[] inputBytes = System.Text.Encoding.ASCII.GetBytes(input);

        byte[] hash = md5.ComputeHash(inputBytes);

        // step 2, convert byte array to hex string

        StringBuilder sb = new StringBuilder();

        for (int i = 0; i < hash.Length; i++)

        {

            sb.Append(hash[i].ToString("X2"));

        }

​

        return sb.ToString();

    }

​

    public static void Main()

    {

        var session = CalculateMD5Hash("Tests");

        Console.WriteLine(session);

    }

}