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Location Privacy Preservation in VANET using Mix Zones – A survey

机译：使用混合区域在VANET中进行位置隐私保护–调查

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摘要

A Vehicular Networks are intelligent transportation system which provides data dissemination, and traffic management services. In VANETs, privacy is the major issue in safety-related application. It becomes a challenging problem to maintain the privacy of the vehicle and the user. To avoid linking of messages which is sent between the vehicles in the network, many privacy schemes utilizes pseudonym changing mechanism. But the beacons containing spatiotemporal information makes the vehicle vulnerable to attacks and privacy is breached. Hence, preserving the context of privacy is a major challenge in the vehicular network. In order to enhance the privacy, mix zone is considered as the optimal method among pseudonym changing mechanism. The mix zones are created by multiple numbers of vehicles that concurrently change their pseudonym to admit uncertainty to the malevolent competitors such that it turns into inaccessible for them to extract the cooperation between the current and former pseudonyms employed by the vehicles. This paper reviews various pseudonym strategies and mix zone schemes for privacy preservation.
机译：车载网络是一种智能交通系统，可提供数据分发和交通管理服务。在VANET中，隐私是安全相关应用程序中的主要问题。维护车辆和用户的隐私成为具有挑战性的问题。为了避免链接网络中车辆之间发送的消息，许多隐私方案都使用化名更改机制。但是，包含时空信息的信标使车辆容易受到攻击，并且侵犯了隐私。因此，在汽车网络中，保护隐私的上下文是主要的挑战。为了提高隐私性，混合区被认为是化名变更机制中的最佳方法。混合区域是由多个车辆创建的，这些车辆同时更改其假名以使恶意竞争对手感到不确定，从而使他们无法提取车辆当前和以前使用的假名之间的配合。本文回顾了用于保护隐私的各种化名策略和混合区域方案。

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