How do I forcefully propagate role changes to users with ASP.NET Identity 2.0.1?

I’ve read this and while it explains how role changes will eventually propagate to the user cookie after some time interval, I still don’t understand how I force an immediate change to user roles.

Do I really have to sign the user out when I change his roles as administrator? If so — how? If I use AuthenticationManager.SignOut(); then I sign off myself (admin), not the user, whose roles I want to change.

Currently I use await UserManager.UpdateSecurityStampAsync(user.Id); to generate a new security stamp, but it does not work. When I refresh a page in another browser while logged in as another user his claims (including security stamp) do not change.


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Method 1

If you want to enable immediate revocation of cookies, then every request must hit the database to validate the cookie. So the tradeoff between delay is with your database load. But you can always set the validationInterval to 0.

app.UseCookieAuthentication(new CookieAuthenticationOptions
    AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie,
    LoginPath = new PathString("/Account/Login"),
    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>(
            validateInterval: TimeSpan.FromSeconds(0),
            regenerateIdentity: (manager, user) => user.GenerateUserIdentityAsync(manager))

All methods was sourced from or, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0

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