Security Technology For Distributed Information Services

Combination of Web technology and distributed object technology leads to the change of the architecture of the whole application systems,that is,from old client/server to Browser/server computing structure.Accordingly,distributed information service comes forth. Distributed information service has become the leading service mode of network application systems.But, distributed information service faces more and more security threaten. The paper is with the emphasis on security technology of distributed information service.The paper analyzes security problems distributed information service faces and introduces security technique distributed information service uses.The paper studies access control, identification authentication and security audit technology, which are used widely in the field of distributed information service security. The paper analyzes oracle application server.To ensure system secure,oracle application server combines access control and identification authentication.After the analysis of oracle application server,the paper puts forward some advice. The paper implements a distributed information service system.The system uses access control, identification authentication and security audit technology.At the end, the paper studies expansibility of the distributed information service system. In the process of analysis and study of distributed information service security,the paper accumulates valuable experiences and lessons for later design and implementation.