using System;

using System.IO;

using System.Security.Cryptography;

using System.Text;

​

public class Program

{

    public static void Main()

        {

            string prueba = "Esto es una prueba para comprobar que efectivamente";

            Console.WriteLine(string.Format("{0}-{1}", prueba.Length, BitConverter.ToString(Encoding.ASCII.GetBytes(prueba)).Replace("-","")));

​

        }

    private static string StringToHex(string hexstring)

{

    StringBuilder sb = new StringBuilder();

    foreach (char t in hexstring)

    { 

        //Note: X for upper, x for lower case letters

        sb.Append(Convert.ToInt32(t).ToString("x")); 

    }

    return sb.ToString();

}

    }