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J2EE™ Tutorial, The by Beth Stearns, Monica Pawlan, Eric Jendrock, Kim Haase, Dale Green, Stephanie Bodoff

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Application Client-Tier Security

Authentication requirements for J2EE application clients are the same as the requirements for other J2EE components. Access to protected resources in either the EJB tier or the Web tier requires user authentication, whereas access to unprotected resources does not.

An application client can use the Java Authentication and Authorization Service (JAAS) for authentication. JAAS implements a Java version of the standard Pluggable Authentication Module (PAM) framework, which permits applications to remain independent from underlying authentication technologies. You can plug new or updated authentication technologies under an application without making any modifications to the application itself. Applications enable ...

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