Intrusion Detection Techniques In Mobile Networks

Abstract

The rapid proliferation of wireless networks and mobile computing applications has changed the landscape of network security. The recent denial of service attacks on major Internet sites have shown us, no open computer network is immune from intrusions. The wireless ad-hoc network is particularly vulnerable due to its features of open medium, dynamic changing topology, cooperative algorithms, lack of centralized monitoring and management point, and lack of a clear line of defense. The traditional way of protecting networks with firewalls and encryption software is no longer sufficient and effective. Many intrusion detection techniques have been developed on fixed wired networks but have been turned to be inapplicable in this new environment. We need to search for new architecture and mechanisms to protect wireless networks and mobile computing application. In this paper, we examine the vulnerabilities of wireless networks and say that we must include intrusion detection in the security architecture for mobile computing environment. We have showed such architecture and evaluated key mechanisms in this architecture such as applying mobile agents to intrusion detection, anomaly detection and misuse detection for mobile ad-hoc networks.