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http://dx.doi.org/10.13089/JKIISC.2010.20.4.75

A Secure Communication Scheme without Trusted RSU Setting for VANET  

Fei, He (Graduate School for Information Management and Security, Korea University)
Kun, Li (Graduate School for Information Management and Security, Korea University)
Kim, Bum-Han (Graduate School for Information Management and Security, Korea University)
Lee, Dong-Hoon (Graduate School for Information Management and Security, Korea University)
Publication Information
Journal of the Korea Institute of Information Security & Cryptology / v.20, no.4, 2010 , pp. 75-87 More about this Journal
Abstract
Secure communication has been one of the main challenges in vehicular ad hoc networks(VANET) since broadcast messages from nearby vehicles contain life-critical information for drivers and passengers. So far various secure communication schemes have been proposed to secure the communication in VANET, and they satisfy most security requirements. However most of them need to put trust on roadside units(RSUs), which are usually deployed in unattended area and vulnerable to compromise. In this paper, we propose a secure communication scheme, which does not need to put trust on RSUs. And we adopt a grouping technique to averagely divide the huge burden in the server without jeopardizing the anonymity of users. Moreover we design a complete set of protocols to satisfy common security requirements with a relatively lower hardware requirement. At last, we evaluate the scheme with respect to security requirements, communication overhead, storage overhead and network performance.
Keywords
VANET; secure communication; temporary anonymous certificate;
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