Research On Secure Distributed Application System And Its Development

The popularization of Web technology makes the application system of enterprises gradually open from obturation, and the information resources of enterprise applications will rely more and more upon the Web environment. The Distributing Mode Application System based on J2EE is facing a difficult problem------more and more difficult security management.At present, most J2EE application systems take relevant security strategy, but the results are not so well. The most amounts of the researchers don't take it as a problem, because they don't have enough experience of the security. They ignore the security problem of software itself, and making their most energy on network security technology and information system security, but have no idea of the aspect which leading to the security problem. There are some researchers on Security have know the importance of the application system itself, but they lose sight of other side.The article solves the security problem of application system using layered frame based on J2EE in one program. The security frame analyses and solves the security problem from the application level, system level and the physical level, and organically integrated to form a steady, reasonable and complete security strategy of the J2EE enterprise application. The application level security measures mainly responds to the safety of the application software, and the article take Role-based Privilege Control technology to ensure the application system run in gear. The system level is the safety problem of the J2EE application server and the web server and is mainly for the purpose of protecting the database. The article composes credibility and steady protect structure by using distributed EJB data access module and assembling data encrypt, digital signature and attestation receipt technology. The physical level applies the firewall technology; especially the introduction of physical separator makes the prevention strategy from defensive to aggressive, improving its security.By the security frame, the article completes a set of high-efficiency practical security strategy; it is the important safety insurance of the enterprise application system based on J2EE.