What is Spring Security?

Spring Security provides comprehensive security services for J2EE-based enterprise software applications.

As you probably know two major areas of application security are "authentication" and "authorization" (or "access-control").
These are the two main areas that Spring Security targets.

"Authentication" is the process of establishing a principal is who they claim to be i.e authenticating the user during signing in.

"Authorization" refers to the process of deciding whether a principal is allowed to perform an action within your application.

Spring Security Maven

<dependency>
    <groupId>org.springframework.security</groupId>
    <artifactId>spring-security-core</artifactId>
    <version>4.0.3.RELEASE</version>
</dependency>
Spring Security provides even its own basic login page,processes the login on its own using the jpa,We will see how the set up is done in next chapter