public ActionResult SingleLogout()
        {
            Saml2StatusCodes status;
            var requestBinding = new Saml2RedirectBinding();
            var logoutRequest  = new Saml2LogoutRequest();

            try
            {
                requestBinding.Unbind(Request, logoutRequest, CertificateUtil.Load("~/App_Data/signing-adfs.test_Certificate.crt"));
                status = Saml2StatusCodes.Success;
            }
            catch (Exception exc)
            {
                // log exception
                Debug.WriteLine("SingleLogout error: " + exc.ToString());
                status = Saml2StatusCodes.RequestDenied;
            }

            var responsebinding = new Saml2RedirectBinding();

            responsebinding.RelayState = requestBinding.RelayState;
            var saml2LogoutResponse = new Saml2LogoutResponse
            {
                InResponseTo = logoutRequest.Id,
                Status       = status,
                Issuer       = new EndpointReference("http://udv.itfoxtec.com/webapptest"),
                Destination  = new EndpointAddress("https://udv.itfoxtec.com/adfs/ls/")
            };

            saml2LogoutResponse.DeleteSession();
            return(responsebinding.Bind(saml2LogoutResponse, CertificateUtil.Load("~/App_Data/webapptest_certificate.pfx")).ToActionResult());
        }
        public ActionResult LoggedOut()
        {
            var response = new Saml2LogoutResponse();

            response.DeleteSession();

            return(RedirectToAction("Index"));
        }