When securing systems, two elements of security are important: authentication and authorization. Though the two terms mean different things, they are sometimes used interchangeably because of their respective roles in application security. Get started with the fundamentals of web authentication and authorization using Apache Shiro Framework.Apache Shiro is a powerful and easy-to-use Java security framework that performs authentication, authorization, cryptography, and session management. Learn how to use Shiro in a JavaEE7 application and how to use it in a web application.