Feb 02, 2016 07:21 AM|Candice Zhou|LINK
Welcome to ASP.NET Forums!
Previously, for local authentication we used to use Forms authentication and its job was to issue a cookie to represent the current logged in user. Upon subsequent requests from the user, Forms authentication would validate the cookie and make a principal
object available that represents the user’s identity.
Now, In MVC5, the new cookie-based implementation is called the OWIN cookie authentication middleware. This performs the same task — it can issue a cookie and then validates the cookie on subsequent requests. One improvement the OWIN cookie authentication
middleware has over the previous Forms authentication is that it is claims-aware.
So, in order to use ASP.NET Identity the first thing you have to do is actually turn off standard IIS authentication in web.config for your application:
<authentication mode="None" />
For more information, please refer to the following links: