THE RESEARCH OF COMPLEX SYSTEM BASE ON NETWORK SECURITY

摘要

The network security is a complex problem. It relates to computer, which is complex, unstable, and full of bugs. It also relates to people: the things that people know, interpersonal relationship, and the relationship between people and machinej So the network security has a series of characters of complex system: uncertainty, unpredictable, intelligent, self-adapted, partial information, no center control, etc. Our research starts with an E-commerce security system. We discuss the problems that maybe appear when we put it under an open environment, for example, the problems of people, the problem of machine, the problems of encryption, and the problems of software. Security not only relates to cryptography, but also relates to other aspects. The weakness of security has no relationship with Mathematics. They exist in hardware, software, network and people. We try to find the weakness from the angle of the whole system. The insecure factors always exist. There is no perfect system. We try to find out how to manager the complex security environment efficiently, and to summarize a general model of network security system that to resolve the security problems under nowadays complex environment.