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Adding JAAS Security to the Client

Learn how to add Java Authentication and Authorization Services (JAAS) to a web application, including adding users, roles, and security settings. Explore the Oracle JAAS implementation, JAZN, and understand how to implement client authentication and authorization using JAAS and J2EE deployment descriptors.

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Adding JAAS Security to the Client

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  1. Adding JAAS Security to the Client

  2. Objectives • After completing this lesson, you should be able to do the following: • Describe how Java Authentication and Authorization Services (JAAS) works in a Web application • Use JAAS to add security to an application • Add users and roles to an application deployment descriptor • Add JAAS security to a Web application

  3. JAAS Provider • The JAAS provider supports: • Storage, retrieval, and administration of: • - Realm information (users and roles) • - Policy (permissions) • Multiple repositories: • - XML based • - LDAP based • Login modules • It works with J2EE declarative security model: • Is part of the deployment model • Requires little or no programming

  4. Defining Security Needs • Determine the logical roles in an application: • Customer • Buyer • Administrator • Determine authorization constraints: Who can do what actions. • Decide provider type: • XML- based flat file • LDAP (Oracle Internet Directory) • Map security roles to users and groups.

  5. Oracle JAAS Implementation: JAZN • OracleAS Containers for J2EE (OC4J) implement a JAAS provider called JAZN. • The Oracle provider supports: • Integration with single sign-on (SSO) • Access control through Java 2 permissions • Secure file-based storage of user passwords • JAZNUserManager • Obfuscates passwords in flat file storage • Supports full role-based access control • Supports full support for Java 2 permissions model

  6. Client Authentication • Authentication: • Determines who clients are • Can they prove it? • JAAS integrates any number of authentication schemes, for example: • SSO: Uses OracleAS Single Sign-On • SSL: Uses secure sockets layer (SSL) for client certificate-based authentication • Basic authentication: Prompts for username and password • Write your own login module.

  7. Client Authorization • Client authorization is specified in J2EE deployment descriptors. • Every client obtains a security principal. • A client can invoke a URL or a method only if the client’s role has the associated rights. • The J2EE container enforces security policies and provides tools for managing security. • Struts includes roles at the “node” level.

  8. Basic Authentication Scenario Oracle Containers for J2EE WebApp HTTP client Servlet 1 Servlet 2 OracleAS JAZN Provider JAAS OracleAS JAZNUserManager JAAS HTTP Server OracleAS JAAS Policy

  9. Adding JAAS Security to an Application • JDeveloper provides a dialog box to help add JAAS security to an application. • By using the dialog box, you do not have to directly edit the XML files. • Security settings are maintained in the web.xml file. • Access the settings: • Right-click web.xml in the Applications Navigator. • Select properties from the context menu.

  10. Adding Authorization Information to Struts • The Struts configuration includes an authorization scheme. • The scheme specifies authorization at the node level. • Specify the authorized role in the Property Inspector.

  11. web.xml Properties • To implement JAAS security, modify: • Security roles: Add the security role that you want to use. • Add a Web resource: • Specify any unique name. • Add a URL pattern to validate. • On the Authorizations tabbed page, select the user role.

  12. web.xml Results • <web-app> • … • <security-constraint> • <web-resource-collection> • <web-resource-name>TestApplication</web-resource-name> • <url-pattern>/</url-pattern> • </web-resource-collection> • <auth-constraint> • <role-name>users</role-name> • </auth-constraint> • </security-constraint> • <security-role> • <role-name>users</role-name> • </security-role> • </web-app>

  13. Adding Users and Roles • JDeveloper provides a wizard interface to the jazn-data.xml file. • Select Tools > Embedded OC4J Server Preferences.

  14. Adding Users

  15. Managing Roles

  16. Selecting a Specific jazn-data.xml File • JDeveloper allows you to specify which JAZN file to use at runtime in the application configuration. • To change files: • Right-click the application module • Select configurations • Edit the jbo.security.config property • Enter the path to your jazn-data.xml file • It gives you testing and deployment flexibility. • To use LDAP, change the jazn.xml file.

  17. Running the Application • Test the application. • The browser prompts for username and password. • The application is opened if the user is authenticated and authorized. • If either fails, the application is not authorized to run.

  18. Summary In this lesson, you should have learned how to: • Use JAAS to add security to an application • Add users and roles to an application deployment descriptor • Add JAAS security to a Web application • Describe how JAAS works in a Web application.

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