I have an app that uses my own membership system. It uses ASP.NET MVC 3 which I'm updating to ASP.NET MVC 5. It's not possible to change the membership to use a new one like ASP.NET Identity. But, for the authentication side, do you think it is a good idea to replace my auth-ticket system with OWIN.Security? Are there any traps that I should know about?
The Katana security middleware is independent from ASP.NET Identity. You can use them both or just one.