using System;

public class Program

{

    public static void Main()

    {

        string tmp = "test";

        byte[] bTmp = System.Text.Encoding.UTF8.GetBytes(tmp);

        byte[] hashed = null;

        using (System.Security.Cryptography.MD5CryptoServiceProvider md5 = new System.Security.Cryptography.MD5CryptoServiceProvider())

        {

            hashed = md5.ComputeHash(bTmp);

        }

        Console.WriteLine(Convert.ToBase64String(hashed));

    }

}