Doubt regarding configuring Authentication System for JEE application (Web + EJB)

[B Nirvan]

Hi,
I have an application with JSF as view and EJB for the model. I need to authenticate the users on both the web tier and EJB tier. Ideally I would authenticate the user on the web side and propagate the authenticated principal to the EJB tier. My doubt is whether I have to include the Security configuration on both web and EJB tier or is it enough to have it configured on the web tier(web.xml) and the container then propagates the authenticated principal to the EJB tier.

regards,
Nirvan.

[Thiago Alves de Moraes]

Hi Nirvan!
Once the user (web tier) has been authenticated via JAAS, the client can call ejbs securely. The authentication is propagated to the ejb upon method invocation.

You should supply different configurations for the web and EJB tiers.

In the web.xml you specify the the authentication method and security constraints for your pages.

In the EJB deployment descriptor (or annotations ) you specify the security roles allowed for method invocations.

They share the same authentication but the configuration is different.

[B Nirvan]

Thiago,
Thanks very much for the explanation. Doubt resolved.

regards,
Nirvan