public HttpCookie CreateFormsAuthenticationCookie(OpenIdUser user)
        {
            var ticket = new FormsAuthenticationTicket(1, user.ClaimedIdentifier, DateTime.Now, DateTime.Now.AddDays(7), true, user.ToString());
            var encrypted = FormsAuthentication.Encrypt(ticket);
            var cookie = new HttpCookie(FormsAuthentication.FormsCookieName, encrypted);

            return cookie;
        }
 private OpenIdUser ResponseIntoUser(IAuthenticationResponse response)
 {
     OpenIdUser user = null;
     user = new OpenIdUser(response.ClaimedIdentifier, response.FriendlyIdentifierForDisplay); ;
     return user;
 }