I am migrating an existing application from web forms to MVC 5, and I am looking to re-use our custom membership provider(implementing System.Web.Security.MembershipProvider interface). Jumping to ASP.Net Identity is something we would consider down the line - it doesn't seem to work well with the database first model.
Any thoughts/advice welcome! Keith
Have a look at the CustomMembership sample at https://aspnet.codeplex.com/SourceControl/latest#Samples/Identity/CustomMembershipSample/ Hope you find that helpful