Security in Wireless Sensor Networks

Abstract

As wireless sensor networks edge closer towards wide-spread deployment, security issues become a central concern. However, the more challenging it becomes to fit the security of WSN into that constrained environment including very limited energy resources, low abilities to resist physical attacks, and lack of feedback mechanisms for abnormal cases off-line. Thus the research of security issues in WSN is very important. The intent of this chapter is to investigate the security related issues in wireless sensor networks. Firstly, the security architecture of sensor networks is proposed, trying to outline a general illustration on this area. Then, the following four aspects are investigated. (1) The cryptographic mechanisms. (2) Various keying mechanisms for the key management issue. (3) A panoramic view and detailed analysis of the trust management. (4) A set of effective strategies based on protecting location privacy.