public static void Set(InfoModel value) { if (value == null) { HttpContext.Current.Response.Cookies[PARAM_KEY].Expires = DateTime.Now.AddYears(-1); } else { HttpContext.Current.Response.Cookies.Add(new HttpCookie(PARAM_KEY, Convert.ToBase64String(Encoding.UTF8.GetBytes(EncryptUtil.CryptXOR(Convert.ToBase64String(Encoding.UTF8.GetBytes(JsonUtil.ToJson(value))), CRYPTXOR_KEY))))); } }