The Research Of Dynamic Network Security Model Based On Complex Adaptive System

With the development of Internet, network security becomes more and more prominently. The people also pay more attention to the network security.Facing network attacking which increases day by day, how truly achieved "the network both open and safely" already becomes suspends in front of a world technical personnel's important topic.The security model is aims at the solution which the network security proposed.The traditional security model is the static security model. It is not measure to the dynamic safe threat and the system vulnerability .Facing day by day popular distributional, coordination type attack, any single security module defense capability is limited,.Only when each security module realize effective interaction and constitute whole safe solution, the model can solve the network security question effectively.Moreover, the research indicated that, network is a complex network which forms by some simple rules.Along with time extending and the people to the network security question attention increase, how provides the good network security model which can adapt to such dynamic change complex network circumstances is become a question which urgently awaits to be solved.This article introduced some network security models and analyzed their liminitation. Then the author brings forward a new dynamic network security model SAP~2MDR~2C of the complex adaptive system which based on the closed-loop control.Its nucleus is security management and security policy.And it designs a new algorithm of intrusion detection based on complex adaptive system utilizes in this model.It can solved in some degree the problem of measure by mistake and missed detection; increased the model safety performance and the security rating. With using the simulation environment of Swarm, it realizes dynamic simulation of intrusion detection system. It to impels complex adaptive system and the dynamic network security model further development has certain instruction and the model significance.