Authentication and Authorization in ASP.NET Core

You’ve probably seen how a ASP.NET Core application works, but authentication and authorization are a different cup of tea. Microsoft completely re-did a large part of these security features in ASP.NET Core.
We'll look at the different case of doing authentication for your application, with ASP.NET Core Identity or by using a token service (STS). When that's done we'll dive into the authorization part which is also completely overhauled.