OPQ: OT-Based Private Querying in VANETs
OPQ: OT-Based Private Querying in VANETs
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DOI：
10.1109/tits.2011.2158208
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发表时间：
2011-12
影响因子：
8.5
通讯作者：
T. W. Chim;S. Yiu;L. Hui;V. Li
中科院分区：
文献类型：
--
作者：
T. W. Chim;S. Yiu;L. Hui;V. Li
我们考虑查询服务（例如，基于位置的查询服务）。查询服务已经被研究在各种类型的网络，如传统的移动的电话网络和其他移动的ad hoc网络。然而，现有的计划是不适合VANESTAL由于其高度动态的环境或不提供一个隐私保护的解决方案。在本文中，我们首先讨论的安全问题，提供一个查询服务，确保查询将不会被拒绝的查询。然后，我们简要地强调了VANESTO的特点，这使得问题不同于其他类型的网络。最后，我们提出了一个解决方案，通过使用伪身份，不可区分的凭证，和不经意的传输技术来解决这个问题。我们表明，虽然所有的基础设施单位勾结，它仍然是不可能的链接到一个查询的用户的真实的身份。基于我们的模拟研究，我们表明，我们的计划是有效的处理延迟，消息开销和成功率。
We consider the querying service (e.g., location-based query service) in vehicular ad hoc networks (VANETs). Querying service has been studied in various kinds of networks such as traditional mobile phone networks and other mobile ad hoc networks. However, existing schemes are either not suitable for VANETs due to their highly dynamic environment or do not provide a privacy-preserving solution. In this paper, we first discuss the security concerns of providing a querying service that ensures that a query will not be linkable to the querier. Then, we briefly highlight the characteristics of VANETs, which make the problem different from other types of networks. Finally, we propose a solution for solving the problem by using techniques of pseudoidentity, indistinguishable credentials, and oblivious transfer. We show that, although all infrastructure units collude, it is still impossible to link the real identity of the user to a query. Based on our simulation study, we show that our scheme is effective in terms of processing delay, message overhead, and success rate.