An active global attack model for sensor source location privacy: Analysis and countermeasures

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Scopus citations

Abstract

Source locations of events are sensitive contextual information that needs to be protected in sensor networks. Previous work focuses on either an active local attacker that traces back to a real source in a hop-by-hop fashion, or a passive global attacker that eavesdrops/analyzes all network traffic to discover real sources. An active global attack model, which is more realistic and powerful than current ones, has not been studied yet. In this paper, we not only formalize this strong attack model, but also propose countermeasures against it. As case studies, we first apply such an attack model to two previous schemes, with results indicating that even these theoretically sound constructions are vulnerable. We then propose a lightweight dynamic source anonymity scheme that seamlessly switches from a statistically strong source anonymity scheme to a k-anonymity scheme on demand. Moreover, we enhance the traditional k-anonymity scheme with a spatial l-diversity capability by cautiously placing fake sources, to thwart attacker's on-site examinations. Simulation results demonstrate that the attacker's gain in our scheme is greatly reduced when compared to the k-anonymity scheme.

Original languageEnglish (US)
Title of host publicationSecurity and Privacy in Communication Networks - 5th International ICST Conference, SecureComm 2009, Revised Selected Papers
Pages373-393
Number of pages21
DOIs
StatePublished - Dec 1 2009
Event5th International ICST Conference on Security and Privacy in Communication Networks, SecureComm 2009 - Athens, Greece
Duration: Sep 14 2009Sep 18 2009

Publication series

NameLecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering
Volume19 LNICST
ISSN (Print)1867-8211

Other

Other5th International ICST Conference on Security and Privacy in Communication Networks, SecureComm 2009
CountryGreece
CityAthens
Period9/14/099/18/09

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications

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