The effects of limited lifetime pseudonyms on certificate revocation list size in VANETS

Michael E. Nowatkowski, Jennie E. Wolfgang, Chris McManus, Henry L. Owen

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

19 Scopus citations


Concerns for VANET participants will be the reliability and trustworthiness of received messages and the privacy in the use of the VANET to prevent vehicle tracking. To address these concerns, public key certificates have been standardized for VANETS; however, with the use of public key certificates comes additional concerns, especially how to ensure that received certificates are valid. To achieve this aim, timely distribution of certificate revocation lists (CRLs) to VANET participants will be essential. Depending on the policies for the number of pseudonyms carried by vehicles and the triggers for revoking certificates, the size of the CRL may grow very quickly. This paper investigates the parameters that determine the sizes of CRLs in an attempt to quantify the scope of CRL distribution challenges. We also propose adding a "valid after" field to the WAVE Certificate in the IEEE Trial-Use Standard 1609.2 to reduce some of the large CRL sizes we discovered.

Original languageEnglish (US)
Title of host publicationIEEE SoutheastCon 2010
Subtitle of host publicationEnergizing Our Future
Number of pages4
StatePublished - 2010
EventIEEE SoutheastCon 2010 Conference: Energizing Our Future - Charlotte-Concord, NC, United States
Duration: Mar 18 2010Mar 21 2010

Publication series

NameConference Proceedings - IEEE SOUTHEASTCON
ISSN (Print)0734-7502


OtherIEEE SoutheastCon 2010 Conference: Energizing Our Future
Country/TerritoryUnited States
CityCharlotte-Concord, NC

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Software
  • Electrical and Electronic Engineering
  • Control and Systems Engineering
  • Signal Processing

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