MANET Security

Mobile Ad-Hoc Network (MANET) is often vulnerable to security attacks due to its features of open medium, dynamic changing topology, cooperative algorithms, lack of centralized monitoring and management point, and often lack of a clear line of defense. All these have changed the landscape of network security. The traditional way of protecting networks with firewalls and encryption software is no longer sufficient and effective. We need to search for new architecture and mechanisms to protect MANET infrastructure and applications.

In this research, we study and develop various security measures particularly designed for MANET.

Intrusion Detection for MANET

Many of the intrusion detection techniques developed on a fixed wired network are not applicable in MANET due to it special network characteristics. Here we are studying how to do intrusion detection effectively in this new environment. We have developed an anomaly detection model that can satisfy this goal.

More information:

  • Y. Zhang, W. Lee, and Y. Huang, Intrusion Detection Techniques for Mobile Wireless Networks, ACM Mobile Networks and Applications (MONET) Journal, 2002. (to appear)
  • Y. Zhang and W. Lee, Intrusion Detection in Wireless Ad Hoc Networks, The 6th International Conference on Mobile Computing and Networking (MobiCom'2000), Aug 2000.

    Distributed Authentication

    In MANET, centralized authentication infrastructure (PKI for instance) is extremely difficult to provide. Due to the dynamic nature and frequent topology changes, it makes sense to minimize the dependence of authentication process on a centralized server. Our goal is to develop distributed authentication systems that are based on a localized and distributed decision-making architecture. We are studying such distributed authentication schemes based on threshold cryptograph and the "web-of-trust" model.

    Return to MANET Systems Research Last updated: Aug 25, 2002.