Location Privacy and Anonymity Preserving Routing for Wireless Sensor Networks

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Executive Summary

In a Wireless Sensor Network (WSN), concealing the locations, and in some cases the identities of nodes, especially the controller (sometimes called sink or base station) is an important problem. In this paper, the authors explain that appropriate solutions for this problem depend on the nature of the traffic generated in the network as well as the capabilities of the adversary that must be resisted. When there is a sufficient amount of data flows (real or fake packets), their proposed DCARPS anonymous routing protocol can support location privacy against a global eavesdropper. Otherwise, it is only possible to stop packet tracing attacks by a local eavesdropper, which is what their probabilistic DCARPS protocol achieves.

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