Performance and Scalability Assessment for Non-Certificate-Based Public Key Management in VANETs

Authors:
Pei-Yuan Shen;Maolin Tang;Vicky Liu;William Caelli
Affiliations:
Queensland University of Technology, Australia;Queensland University of Technology, Australia;Queensland University of Technology, Australia;Queensland University of Technology, Australia
Venue:
International Journal of Information Security and Privacy
Year:
2012

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Abstract

Current research in secure messaging for Vehicular Ad hoc Networks VANETs focuses on employing a digital certificate-based Public Key Cryptosystem PKC to support security. However, the security overhead of such a scheme creates a transmission delay and introduces a time-consuming verification process to VANET communications. This paper proposes a non-certificate-based public key management for VANETs. A comprehensive evaluation of performance and scalability of the proposed public key management regime is presented, which is compared with a certificate-based PKC by employing a number of quantified analyses and simulations. In this paper, the authors demonstrate that the proposal can maintain security and assert that it can improve overall performance and scalability at a lower cost, compared with certificate-based PKC. The proposed scheme adds a new dimension to key management and verification services for VANETs.