Java Authentication and Authorization Service (JAAS)
The Java Authentication and Authorization Service (JAAS) is a framework that supplements the Java 2 platform with user-based authentication and access control capabilities. It includes a Java implementation of the standard Pluggable Authentication Module (PAM) architecture, and provides support for user-based, group-based, or role-based access controls.
The Java Platform
In this excerpt from O'Reilly & Associates' Java in a Nutshell, 4th Edition, David Flanagan shows you a number of the Java 2SE platform packages, using examples of the most useful classes in these packages.
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JAAS (Java Authentication and Authorization Service) is a Java security API. JAAS was covered in this tutorial session at the 2001 O'Reilly Enterprise Java Conference. [Source: O'Reilly]