using System;

using System.Security.Cryptography;

using System.Text;

public class Program

{

    public static void Main()

    {

        Console.WriteLine( HashValue("Amazon2021"));

    }

    public static string HashValue(string valueToHash)         

    {

        byte[] bytes = Encoding.UTF8.GetBytes(valueToHash.Trim());

​

        SHA256Managed hashstring = new SHA256Managed();

​

        byte[] hash = hashstring.ComputeHash(bytes);

​

        string retVal = Convert.ToBase64String(hash);

​

        return retVal;

​

    }

}