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Increasing mix-zone eicacy for pseudonym change in VANETs using cha messages
University of Oxford, Oxford, United Kingdom.
KTH, School of Electrical Engineering and Computer Science (EECS), Network and Systems engineering.ORCID iD: 0000-0002-3267-5374
University of Oxford, Oxford, United Kingdom.
2018 (English)In: WiSec 2018 - Proceedings of the 11th ACM Conference on Security and Privacy in Wireless and Mobile Networks, Association for Computing Machinery, Inc , 2018, p. 287-288Conference paper, Poster (with or without abstract) (Refereed)
Abstract [en]

Vehicular ad-hoc networks (VANETs) are designed to play a key role in the development of future transportation systems. Although cooperative awareness messages provide the required situational awareness for new safety and eciency applications, they also introduce a new aack vector to compromise privacy. The use of ephemeral credentials called pseudonyms for privacy protection was proposed while ensuring the required security properties. In order to prevent an aacker from linking old to new pseudonyms, mix-zones provide a region in which vehicles can covertly change their signing material. In this poster, we extend the idea of mix-zones to mitigate pseudonym linking aacks with a mechanism inspired by cha-based privacy defense techniques for mix-networks. By providing cha trajectories, our system restores the ecacy of mix-zones to compensate for a lack of vehicles available to participate in the mixing procedure. Our simulation results of a realistic trac scenario show that a signicant improvement is possible.

Place, publisher, year, edition, pages
Association for Computing Machinery, Inc , 2018. p. 287-288
Keywords [en]
Mobile telecommunication systems, Network security, Defense techniques, Mix networks, Mix zones, Privacy protection, Security properties, Situational awareness, Transportation system, Vehicular Adhoc Networks (VANETs), Vehicular ad hoc networks
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:kth:diva-236302DOI: 10.1145/3212480.3226103ISI: 000456097500034Scopus ID: 2-s2.0-85050904595ISBN: 9781450357319 (print)OAI: oai:DiVA.org:kth-236302DiVA, id: diva2:1258004
Conference
11th ACM Conference on Security and Privacy in Wireless and Mobile Networks, WiSec 2018, 18 June 2018 through 20 June 2018
Note

QC 20181023

Available from: 2018-10-23 Created: 2018-10-23 Last updated: 2019-02-12Bibliographically approved

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Papadimitratos, Panagiotis

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CiteExportLink to record
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Citation style
  • apa
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  • de-DE
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  • nn-NB
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More languages
Output format
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