using System.Security.Principal;

using Microsoft.AspNetCore.Localization;

using System.Security.Cryptography;

using System.Text;

using System;

​

public class Program

{

    public static void Main()

    {

            var secret = "xm7eg6qty6854";

            var data="d=fns-k8s.td112.net";

            using (var hmac = new HMACSHA1(Encoding.UTF8.GetBytes(secret)))

            {

                var computeHash = hmac.ComputeHash(Encoding.UTF8.GetBytes(data));

                Console.WriteLine(Convert.ToBase64String(computeHash));

            }

    }

}

​