Securing location-aware services based on online/offline signatures in VANETs

Authors:
Chul Sur;Youngho Park;Takashi Nishide;Kouichi Sakurai;Kyung Hyune Rhee
Affiliations:
Graduate School of Information Science and Electrical Engineering, Kyushu University, Japan;Department of IT Convergence and Application Engineering, Pukyong National University, Republic of Korea;Graduate School of Information Science and Electrical Engineering, Kyushu University, Japan;Graduate School of Information Science and Electrical Engineering, Kyushu University, Japan;Department of IT Convergence and Application Engineering, Pukyong National University, Republic of Korea
Venue:
ARES'11 Proceedings of the IFIP WG 8.4/8.9 international cross domain conference on Availability, reliability and security for business, enterprise and health information systems
Year:
2011

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Abstract

In this paper, we propose a novel privacy-preserving location assurance protocol for secure location-aware services over vehicular ad hoc networks (VANETs). In particular, we introduce the notion of location-aware credentials based on "hash-sign-switch" paradigm so as to guarantee the trustworthiness of location in location-aware services while providing conditional privacy preservation which is a desirable property for secure vehicular communications. Furthermore, the proposed protocol provides efficient procedures that alleviate a burden of computation for location-aware signature generation and verification on vehicles in VANETs. In order to achieve these goals, we consider online/offline signature scheme and identity-based aggregate signature scheme as our building blocks. Finally, we demonstrate experimental results to confirm the efficiency and effectiveness of the proposed protocol.