using System;

using System.Security.Cryptography;

using System.Text;

​

namespace ConsoleApp1

{

    public class Program

    {

        public static void Main()

        {

            //var plainSecret = "9$#BQ}iM07\\$*nN+A4fi*jSY]N\\\"Y]a";

​

            var plainSecret = "topsecret";

            // Get a binary representation of the secret

            var secretByteArray = Encoding.UTF8.GetBytes(plainSecret);

​

            // Compute the SHA 512 hash of the secret byte array

            var hasher = SHA512Managed.Create();

            var hashedSecret = hasher.ComputeHash(secretByteArray);

​

            // Now base 64 the hashed secret for the final value

            var base64EncodedHashedSecret = Convert.ToBase64String(hashedSecret);

​

            Console.WriteLine(base64EncodedHashedSecret);

        }

    }

}