using System;
using System.Text;
using System.Security.Cryptography;
 
namespace HashAlgorithms
{
    class Program
    {
        static void Main()
        {
            ComputeHashDemo();
 
            Console.Write("\n\nAny key...");
            Console.ReadKey();
        }
 
        static void ComputeHashDemo()
        {
            string source = "test string";
            ASCIIEncoding enc = new ASCIIEncoding();
 
            SHA1 sha = new SHA1CryptoServiceProvider();
            MD5 md5 = new MD5CryptoServiceProvider();
 
            byte[] shaHash = sha.ComputeHash(
                enc.GetBytes(source));
 
            byte[] md5Hash = md5.ComputeHash(
                enc.GetBytes(source));
 
            Console.WriteLine("{0}\t{1}\t{2}", "SHA1", 
                shaHash.Length, shaHash.ToHex());
 
            Console.WriteLine("{0}\t{1}\t{2}", "MD5",
                md5Hash.Length, md5Hash.ToHex());
 
        }
    }
 
    static class ByteExtension
    {
        public static string ToHex(this byte[] me)
        {
            string result = "0x";
            for (int i = 0; i < me.Length; i++)
            {
                result += me[i].ToString("X2");
            }
            return result;
        }
    }
}