In "Step into the J2EE Architecture and Process," Jian Zhong introduced an eight-step cycle methodology for Java 2 Platform, Enterprise Edition (J2EE) development. Here, he and Betty Barlow of the Energy Information Administration (EIA), United States Department of Energy, present a real-world case study that uses that simple methodology to build an e-government solution for EIA. Discover how, in the agency's first J2EE effort, many benefits were gained by using J2EE; specifically, learn the advantages of the J2EE security model and how application security was accomplished. (2,500 words)

In Parts 1 through 4 of this series on Java security, Raghavan N. Srinivas discussed network and Java security concepts; Part 3 took a detailed look at applet security and optional packages. In this article, Raghavan introduces J2SE (Java 2 Platform, Standard Edition) 1.4's new security packages for certificate chain manipulation, along with Generic Security Services, which includes a single sign-on framework over the network. (3,200 words)

In Parts 1 through 3 of this series, Raghavan Srinivas discussed network and Java security concepts, including a detailed look at applet security. In this article, the fourth and last in the series, he details the optional, yet important, packages that enhance Java security. Bonus: A working applet to demonstrate this article's concepts. (4,500 words)