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Robust Probabilistic Fake Packet Injection for Receiver-Location Privacy in WSN

Research Area: WP11 Year: 2012
Type of Publication: In Proceedings
  • Rios, Ruben
  • Cuellar, Jorge
  • Lopez, Javier
Volume: 7459
Book title: 17th European Symposium on Research in Computer Security (ESORICS 2012)
Series: LNCS Pages: 163-180
Address: Pisa, Italy
Month: September
partners: SIEMENS, UMA; projects: NESSoS, ARES, SPRINT, TIER: A, citations: 2
The singular communication model in wireless sensor networks (WSNs) originate pronounced traffic patterns that allow a local observer to deduce the location of the base station, which must be kept secret for both strategical and security reasons. In this work we present a new receiver-location privacy solution called HISP (Homogenous Injection for Sink Privacy). Our scheme is based on the idea of hiding the flow of real traffic by carefully injecting fake traffic to homogenize the transmissions from a node to its neighbors. This process is guided by a lightweight probabilistic approach ensuring that the adversary cannot decide with sufficient precision in which direction to move while maintaining a moderate amount of fake traffic. Our system is both validated analytically and experimentally through simulations