using System;

using System.Security.Cryptography;

using System.Text;

​

public class Program

{

    public static void Main()

    {

        Console.WriteLine(GenerateHashSh1("teste"));

        Console.WriteLine(GenerateHashSh1("teste"));

        Console.WriteLine(GenerateHashSh1("teste"));

    }

    public static Guid GenerateHashSh1(string input)

    {

        using (SHA256 sha256Hash = SHA256.Create())

        {

            // ComputeHash - returns byte array

            byte[] bytes = sha256Hash.ComputeHash(Encoding.UTF8.GetBytes(input));

​

            // Convert byte array to a string

            StringBuilder builder = new StringBuilder();

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

            {

                builder.Append(bytes[i].ToString("x2"));

            }

            using (MD5 md5 = MD5.Create())

            {

                byte[] hash = md5.ComputeHash(Encoding.UTF8.GetBytes(input));

                Guid result = new Guid(hash);

                return result;

            }

        }

    }

}