The simplest definition of authentication is the process of verifying the identity of a user; authorization is the process of verifying what an authenticated user can do. For example, when we log in as a user on our computer, we are granted access, allowing us to execute actions with the available resources (this includes files, applications, and so on).
In the applications that we create, authentication is the process of validating access to the application, and authorization is the process of protecting our resources, like pages, web services, databases, files, queues, and so on. During the authentication process, we validate the identities of those using the application. Authentication includes processes ...
