Invalid value for encryptedTicket parameter

Question

I recently modified the login for my companies eComm site to have a \"Keep me logged in\" feature. The primary change was to make the forms authentication cookie persistent for

Answer 1

I have faced same issue this is because I was getting null or empty value of authCookieValue . So my suggestion is that you have to check null for HttpCookie and also for it's value as given below .

HttpCookie authCookie = System.Web.HttpContext.Current.Request.Cookies[FormsAuthentication.FormsCookieName];
        if (authCookie != null)
        {
            //Extract the forms authentication cookie
            if (!string.IsNullOrEmpty(authCookie.Value))
            {
                FormsAuthenticationTicket authTicket = FormsAuthentication.Decrypt(authCookie.Value);

                string email = authTicket.UserData;

                // and now process your code as per your condition

            }
        }

This will definately will help you .