文章基本信息

标题：Elliptic curve ElGamal Threshold-based Key Management Scheme against Compromise of Distributed RSUs for VANETs
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作者：Na Ruan ; Takashi Nishide ; Yoshiaki Hori 等
期刊名称：Information and Media Technologies
电子版ISSN：1881-0896
出版年度：2012
卷号：7
期号：4
页码：1588-1595
DOI：10.11185/imt.7.1588
出版社：Information and Media Technologies Editorial Board
摘要：In Vehicular Ad Hoc Networks (VANETs), the vehicular scenario requires smart signaling, smart road maintenance and other services. A brand new security issue is that the semi-trusted Road Side Units (RSUs) may be compromised. In this paper, we propose an Elliptic curve ElGamal Threshold system-based key management scheme for safeguarding a VANET from RSUs being compromised and their collusion with malicious vehicles. We analyze the packet loss tolerance for security performance demonstration, followed by a discussion on the threshold. After discussion of the feasibility on privacy and processing time, overhead analysis is presented in terms of two types of application scenarios: Emergency Braking Notification (EBN) and Decentralized Floating Car Data (DFCD). Our method can promote security with low overhead in EBN and does not increase overhead in DFCD during security promotion.
关键词：Elliptic curve ElGamal Threshold Cryptosystem;key management scheme;Distributed RSU;VANET