RESEARCH AND IMPROVEMENT ON COMPUTER INTRUSION DETECTION TECHNOLOGY BASED ON IMMUNE PRINCIPLE

摘要

With the constant development of Internet, the security problem of computer network is becoming more and more prominent increasingly. The traditional intrusion detection systems cannot detect the unknown intrusion attack. So, in this paper, the computer intrusion detection system based on immune principle is introduced at first, and then we analyze the methods of computer intrusion detection and present the disadvantages of the original negative selection algorithm. Furthermore, an improved intrusion detection algorithm has been proposed based on the original one. Finally, we contrast the improved algorithm with the original one from time expenditure through a concrete example and it proved that the improved algorithm was much better than the original one.