There is requirement in my application to implement SSO using ASP.Net Identity (not using Form Authentication). I have implemented ASP.Net Identity in my 2 MVC applications for authentication. Also implemented SSO (Single Sign On) in both application, but when I log in into main application with correct login credentials, its not sharing authentication to the second application hence when I open second application it always redirect to the first application. I have added same machine key in both application See below Startup class I have implemented in my application.
public void ConfigureAuth(IAppBuilder app)
// Configure the db context, user manager and signin manager to use a single instance per request
// Enable the application to use a cookie to store information for the signed in user
// and to use a cookie to temporarily store information about a user logging in with a third party login provider
// Configure the sign in cookie
AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie,
LoginPath = new PathString("/Account/Login"),
CookieName = "Share1.SSO",
//CookieDomain = "azurewebsites.net",//
SlidingExpiration = true,
Provider = new CookieAuthenticationProvider
// Enables the application to validate the security stamp when the user logs in.
// This is a security feature which is used when you change a password or add an external login to your account.
OnValidateIdentity = SecurityStampValidator.OnValidateIdentity<ApplicationUserManager, ApplicationUser>(
regenerateIdentity: (manager, user) => user.GenerateUserIdentityAsync(manager))
AntiForgeryConfig.UniqueClaimTypeIdentifier = ClaimTypes.NameIdentifier;
Also on successful login, I also creates claims as below.
var user = await UserManager.FindByNameAsync(username);
var claims = new List<Claim>();
claims.Add(new Claim(ClaimTypes.NameIdentifier, user.Id));
claims.Add(new Claim(ClaimTypes.Name, username));
var id = new ClaimsIdentity(claims,
var ctx = Request.GetOwinContext();
var authenticationManager = ctx.Authentication;
AllowRefresh = true,
IsPersistent = true,
ExpiresUtc = DateTime.UtcNow.AddMinutes(30),
IssuedUtc = DateTime.UtcNow
But the SSO is not working when I publish on Azure portal. Please guide me to fix this issue asap.