ASP.Net Core 5.0 MVC Session的添加，及它与Cookie的关系

public IActionResult SessionAndCookie()
        {
            string result = HttpContext.Session.GetString("session_key");
            if (string.IsNullOrWhiteSpace(result))
            {
                HttpContext.Session.SetString("session_key", "我是session的值");//实际上这里value "Richard"都做了加密操作
            }
            HttpContext.Response.Cookies.Append("cookie_key", "我是Cookie的值", new CookieOptions { Expires = DateTime.Now.AddMinutes(30) });//实际上这里value "Richard"都做了加密操作

             ViewBag.session = HttpContext.Session.GetString("session_key");
              HttpContext.Request.Cookies.TryGetValue("cookie_key", out string _cookie);
            ViewBag.cookie = _cookie;
            return View();
        }