Hiding contextual information in WSNs

Alejandro Proano, Loukas Lazos

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

3 Scopus citations

Abstract

We address the problem of preserving the confidentiality of contextual information in wireless sensor networks (WSNs). Such information includes the time and location of events observed by the WSN, the position of the sink, and possible routes to the sink. Contextual information can be extracted via traffic analysis, even when all traffic is encrypted. We consider a global threat model in which the adversary is assumed to be capable of eavesdropping on all communications. Compared to previous works, our method significantly reduces the communication overhead for hiding contextual information. In our approach, we first reduce the number of bogus traffic sources necessary for hiding traffic patterns by finding minimum connected dominating sets that cover the deployment area. We then randomize the traffic distributions observed by eavesdropping nodes.

Original languageEnglish (US)
Title of host publication2012 IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks, WoWMoM 2012 - Digital Proceedings
DOIs
StatePublished - Sep 24 2012
Event13th IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks, WoWMoM 2012 - San Francisco, CA, United States
Duration: Jun 25 2012Jun 28 2012

Publication series

Name2012 IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks, WoWMoM 2012 - Digital Proceedings

Other

Other13th IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks, WoWMoM 2012
CountryUnited States
CitySan Francisco, CA
Period6/25/126/28/12

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ASJC Scopus subject areas

  • Computer Networks and Communications

Cite this

Proano, A., & Lazos, L. (2012). Hiding contextual information in WSNs. In 2012 IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks, WoWMoM 2012 - Digital Proceedings [6263769] (2012 IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks, WoWMoM 2012 - Digital Proceedings). https://doi.org/10.1109/WoWMoM.2012.6263769