Towards Efficient Anonymous Communications in Sensor Networks

Anonymous communication is a challenging task in resource constrained wireless sensor networks (WSN). However, anonymity is important for many sensor networks, in which we want to conceal the location and identify of important nodes (such as source nodes and base stations) from attackers. Existing WSN anonymous protocols either cannot achieve complete anonymity, or have large computation and/or storage overheads. In this paper, we present an efficient anonymous communication protocol for sensor networks. Our protocol can achieve sender/source anonymity, communication -relationship anonymity, and the base station anonymity simultaneously, while having small overheads on computation, storage and communication.