A certificate revocation scheme for wireless ad hoc networks

  • Authors:
  • Claude Crépeau;Carlton R. Davis

  • Affiliations:
  • McGill University, Montréal, QC, Canada;McGill University, Montréal, QC, Canada

  • Venue:
  • Proceedings of the 1st ACM workshop on Security of ad hoc and sensor networks
  • Year:
  • 2003

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Abstract

The increasing prominence of wireless ad hoc networks is stimulating greater interest in developing adequate security mechanisms for securing applications involving these innovative networks paradigms. To-date, the proposed security schemes either provide inadequate security or they are too costly computationally, and therefore impractical for most ad hoc network applications.Adapting wired network security schemes---particularly those involved digital certificates---to wireless ad hoc networks environments, poses many difficulties, primarily for two reasons: the limitation of computational resources, and the absence of centralized entities for performing critical key management tasks such as certificate revocation.In this paper, we propose a certificate revocation scheme for wireless ad hoc networks. Our revocation scheme not only provides a measure of protection against malicious accusation attacks, but it also effectively eliminates the window of opportunity whereby revoked certificates can be used to access network services.