文章基本信息

标题：A Privacy Preserving Message Delivery Protocol Using Identity-Hidden Index in VDTNs
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作者：Youngho Park ; Chul Sur ; Sanguk Shin 等
期刊名称：Journal of Universal Computer Science
印刷版ISSN：0948-6968
出版年度：2013
卷号：19
期号：16
页码：2385-2403
出版社：Graz University of Technology and Know-Center
摘要：Vehicular Delay Tolerant Networks (VDTNs) are characterized model of Vehicular Ad Hoc Networks where vehicles disseminate messages through fixed relay nodes placed on roadside by utilizing a store-carry-forward method. In this paper, we propose a secure message delivery protocol for protecting receiver-location privacy in socialspot-based VDTN because location privacy is one of the most important security requirements. To design a simplified protocol, we eliminate the use of conventional pseudonym-based vehicle identification accompanied with a complex pseudonymous certificate management. Instead, we introduce an identity-hidden message indexing which enables a receiver vehicle to query a message whose destination is itself to the socialspot RSU without revealing its identity, and we make use of non-interactive key agreement scheme to establish a secure communication channel between message source and destination vehicles. Furthermore, we demonstrate experimental results to confirm the reduced cryptographic overhead and the effectiveness of privacy preservation for the proposed protocol.