The Research Of Intrusion Detection System Based On Immune Mechanism

With the arrival of the information era, information security has become increasingly important. As an important method to insure computer security, intrusion detection technique has become the current focus of research in the field of information security. Biological immune system and intrusion detection system are similar in the field of natural protection. The theory that the immune system can protect body from invasion provides a new thinking to the design of intrusion detection system. Intrusion Detection System based on the immune mechanism has become the leading issue of research in the field of intrusion detection.We introduced the emergence and development of the historical process and the status quo of the intrusion detection system based on the immune mechanism, and gave an overview of the concept, mechanism and algorithm of intrusion detection system, biological immune system and artificial immune system. We summed up the key technology and problem about artificial immune system which is applied in the field of intrusion detection system. We analysed the LISYS. In view of pattern matching is a mainly detection technology used by intrusion detection system, We proposed an improved single pattern matching algorithm. The experimental results show that the algorithm can improve the efficiency of pattern matching. We analysed of the shortcomings of the current calculation method of affinity, and gave a weighted affinity algorithm of subparagraph. The experiment implemented on the classic data source proved that the algorithm has a lower false negative and false positive. We proposed an improved idea of amending the rules to the loopholes, meanwhile we gave an advanced model of DynamiCS. Finally, we proposed an improved Intrusion Detection System model based on immune mechanism and verified it by experiments.