Study on service-oriented security architecture

Security has become the key issue in the development of large-scale information system. Piling security products and security technologies simply rather than functional integration and making full use of these products and technologies will cause resource wasting, and not meet the needs for flexible and diverse security requirements. This paper proposes a security architecture design based on SOA. Firstly, security devices and technologies are decomposed into basic security components which form the basic security service layer. Secondly, various extended security components that make up the extended security service layer are realized based on functional combination and process control. Then security services are provided through these two levels for upper security applications. At last, this paper gives the core architecture design of the security service core for dealing with the scalability bottlenecks in distributed system. The design solves effectively the security of large-scale information system.