Sink location privacy protection under direction attack in wireless sensor networks

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• 作者：Jian Wang ; Fengyu Wang ; Zhenzhong Cao ; Fengbo Lin ; Jiayan Wu
• 关键词：Sink node ; WSNs ; Location privacy ; Direction attack ; Direction information
• 刊名：Wireless Networks
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：23
• 期：2
• 页码：579-591
• 全文大小：
• 刊物类别：Computer Science
• 刊物主题：Communications Engineering, Networks; Computer Communication Networks; Electrical Engineering; IT in Business;
• 出版者：Springer US
• ISSN：1572-8196
• 卷排序：23

文摘

Wireless Sensor Networks have been widely deployed in military and civilian applications. Due to the nature of the sensor network, it is easy for an adversary to trace the movement of packets and get the sink location. Many ways have been proposed to deal with this problem, most of them provide path diversity. But these techniques always expose direction information. Once adversaries have got the direction information, they can launch a direction attack by deducing the direction of the sink and choosing right paths to trace. To cope with the direction attack, we present an improved scheme based on injecting fake packets and random walk of real packets. In this scheme, real packets do a random walk to hide direction information at a special phase, fake packets are injected in intersection nodes of two or more shortest paths, which can lead adversaries to fake paths. Privacy analysis shows that our scheme has a good performance on protecting sink location. We also examine the delivery time, energy consumption and safe time by simulations.