WCSE

An Immediate Authentication Protocol for Exchanging Safety Messages in Heterogeneous VANET

Abstract— Vehicular Ad Hoc Networks (VANETs) improves road safeties and user experiences through Vehicle to Vehicle (V2V) communications in heterogeneous networks. Punctuality and protection on safety messages are critical as misuses of safety messages may result in deadly accidents roads. This study is geared toward to improving efficiency of safety messages by minimizing delays for prompt alerts for critical events on roads. Furthermore, integration of safety messages is confirmed by a specially designed authentication mechanism. Authenticating messages with symmetric cryptography enhances computational delays in the first hand. A pre-authenticated messages with a tight scheduling further reduces transfer delays. Especially, it is proposed the way to provide the authentication immediately for the case of event-triggered message because the kind of it is limited. And broadcasting messages among nearby vehicles in the 802.11p network are replaced multicasting among selected vehicles in the LTE network. In this way, secrecy in the VANET is fortified by message authentication.

Index Terms— VANET, safety message, immediate authentication, delay, TESLA, heterogeneous network.

Ji-Young Park, Hyoung-Kee Choi
Sungkyunkwan University, KOREA

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Cite: Ji-Young Park, Hyoung-Kee Choi, "An Immediate Authentication Protocol for Exchanging Safety Messages in Heterogeneous VANET," Proceedings of 2016 6th International Workshop on Computer Science and Engineering, pp. 687-694, Tokyo, 17-19 June, 2016.