INTEGRATION WIRELESS SECURITY WITH NETWORKING ROUTING IN AD HOC SENSOR NETWORKS

摘要

Recent advances in micro-electromechanical systems (MEMS) technology, wireless communications, and digital electronics have enabled the development of low-cost, low-power, multifunctional sensor nodes. On the other hand, confidentiality, integrity, and authentication services are critical to preventing an adversary from compromising the security of a distributed sensor network. Key management is likewise critical to establishing the keys necessary to provide this protection. However, providing key management is difficult due to the ad hoc nature, intermittent connectivity, and resource limitations of the sensor network environment. Most of existing work on sensor network security does not consider the routing features and just focuses on key management itself. We believe that integration wireless security with sensor network cluster-based routing scheme can greatly enhance the security performance. In this paper, the main performance requirements for securing ad hoc sensor networks are analyzed. Based on those requirements, we propose a self-organized sensor network architecture that can provide flexible key management scheme. We further discuss an energy-efficient approach to re-keying in such a scalable network topology. Our conclusion is that the security problem in sensor networks should be integrated with network routing protocols.