On the Efficiency of Secure Beaconing in VANETs

Elmar Schoch, Frank Kargl

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    55 Citations (Scopus)
    191 Downloads (Pure)


    Direct inter-vehicle communication enables numerous safety applications like intersection collision warning. Beacons - periodic one-hop link-layer broadcast messages containing, e.g., location, heading, and speed - are the basis for many such applications. For security, current work often requires all messages to be signed and to carry a certificate to ensure integrity and authenticity. However, high beacon frequency of 1 - 10 Hz and dense traffic situations lead to significant communication and computational overhead. In this paper, we propose several mechanisms to significantly reduce this overhead while maintaining a comparable level of security. The general idea is to omit signatures, certificates, or certificate verification in situations where they are not necessarily required. This creates a security-performance trade-off that we analyze in detail. The results show that significant savings can be achieved with only small impact on security.
    Original languageUndefined
    Title of host publicationProceedings of the third ACM conference on Wireless network security (ACM WiSec 2010)
    Place of PublicationNew York
    PublisherAssociation for Computing Machinery
    Number of pages6
    ISBN (Print)978-1-60558-923-7
    Publication statusPublished - Mar 2010
    Event3rd ACM Conference on Wireless Network Security, ACM WiSec 2010 - Hoboken, United States
    Duration: 22 Mar 201024 Mar 2010
    Conference number: 3

    Publication series



    Conference3rd ACM Conference on Wireless Network Security, ACM WiSec 2010
    Abbreviated titleACM WiSec
    Country/TerritoryUnited States


    • METIS-276058
    • IR-72419
    • Efficiency
    • SCS-Cybersecurity
    • Security
    • EWI-18154
    • Vehicular Ad-hoc Networks (VANETs)

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