Book Image

Spring Security Essentials

By : Nanda Nachimuthu
Book Image

Spring Security Essentials

By: Nanda Nachimuthu

Overview of this book

<p>Spring Security is a framework that focuses on providing both authentication and authorization to Java applications. Like all Spring projects, the real power of Spring Security is how easily it can be extended to meet custom requirements. The popularity of the Spring framework is increasing and the security package of Spring addresses vast mechanisms of Security in a rich way. Due to an increasing number of applications for various business needs, the integration of multiple applications is becoming inevitable. The standard security procedures available across multiple implementations in Spring will protect vulnerable applications that are open to larger public and private audiences.</p> <p>Spring Security Essentials focuses on the need to master the security layer, which is an area not often explored by a Spring developer.</p> <p>At the beginning, we’ll introduce various industry standard security mechanisms and the practical ways to integrate with them. We will also teach you about some up-to-date use cases such as building a security layer for RESTful web services and applications.</p> <p>The IDEs used and security servers involved are briefly explained, including the steps to install them. Many sample projects are also provided to help you practice your newly developed skills. Step-by-step instructions will help you master the security layer integration with the Server, then implement the experience gained from this book in your own real-time application.</p>
Table of Contents (17 chapters)
Spring Security Essentials
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

Chapter 10. Integrating Spring Security with JAAS

Java Authentication and Authorization Service (JAAS) is the Java implementation that is based on the standard Pluggable Authentication Module (PAM) information security framework that is available as an extension library in Java 1.3. The aim of JAAS is to separate the user authentication layer from core applications so that the security-related features can be managed independently. JAAS is a combination of representation of identity called principal and a set of credentials called subject. The login service invokes the application callbacks to get the user inputs such as username and password. The login module of JAAS is primarily concerned with authentication and has methods such as init, login, commit, abort, and logout.

Spring Security provides a package that is able to delegate authentication requests to JAAS. Spring Security's authentication mechanism is responsible for populating the username and password that is taken from the user...