Reuse-Attack Mitigation in Wireless Sensor Networks

Privacy preservation in wireless sensor networks has drawn considerable attention from research community during last few years. Emergence of single-owner, multi-user commercial sensor networks along with hostile and uncontrollable environment of such networks, makes the security issue in such networks of a great importance. This paper concentrates on token-based privacy preservation schemes. A possible attack on such schemes has been introduced. Two different approaches has been utilized to mitigate the attack. We present mathematical models for it's effects and overheads. The results have been verified using extensive simulations.

I. Introduction

Wireless sensor networks (WSN) has been recognized as an effective and affordable solution for wide area of today's applications ranging from habitat monitoring to surveillance and target tracking [1]. Various aspects of WSNs have been studied during last decade, however, privacy preservation in such networks has drawn considerable attention from research community only in the course of last few years [2]–[5]. Resource constraints (notably power and computation con-straints) along with uncontrollable deployment area of such networks impose unique challenges to the field.