Short paper: A practical view of "mixing" identities in vehicular networks

Bisheng Liu, Jerry T. Chiang, Jason J. Haas, Yih Chun Hu

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

Abstract

In a Vehicular Ad hoc NETwork (VANET), vehicles broadcast safety messages disclosing their trajectory information in order to warn drivers of impending accidents. Precise location information needed for these safety applications, combined with the need to exclude attackers through the use of authentication, creates a significant privacy risk. One method proposed to improve privacy is the use of many pseudonyms, and changing pseudonyms while in a mix zone where all other vehicles also change pseudonyms. Previous work has evaluated the effectiveness of mix zones using traces generated based on traffic theory. In this paper, we analyze the privacy obtainable from using mix zones in VANETs based on actual recordings of vehicle movements. We choose rank instead of entropy as our privacy metric because, as we will show, entropy is difficult to measure in our scenarios.

Original languageEnglish (US)
Title of host publicationWiSec'11 - Proceedings of the 4th ACM Conference on Wireless Network Security
Pages157-162
Number of pages6
DOIs
StatePublished - 2011
Event4th ACM Conference on Wireless Network Security, WiSec'11 - Hamburg, Germany
Duration: Jun 15 2011Jun 17 2011

Publication series

NameWiSec'11 - Proceedings of the 4th ACM Conference on Wireless Network Security

Other

Other4th ACM Conference on Wireless Network Security, WiSec'11
Country/TerritoryGermany
CityHamburg
Period6/15/116/17/11

Keywords

  • Mix zones
  • Privacy
  • Vehicular ad hoc networks

ASJC Scopus subject areas

  • Computer Networks and Communications

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