无线传感器网络中源位置隐私保护方法

随着物联网的迅猛发展,位置隐私被认为是传感器网络中一个重要的安全问题。传统的加密方法不能有效地防止攻击者通过逆向追踪的方式来找到监测物体的位置。针对这些问题并考虑到攻击者具有较强的可视能力,本文提出了一种基于区域和兄弟节点选择的位置隐私保护策略(PRABNS,phantom routing based on area and brother neighbor selecting)。该策略能够使幻影节点均匀分布在源节点周围,并通过对部分区域的选择来使相邻数据包间隔一定的角度,选择兄弟节点来增加源节点到基站路径的多样性。仿真结果表明,该策略能提供更好地隐私保护性,在不增加太多能耗的前提下延长了安全时间。

A privacy protection method of source location in wireless sensor networks

With the rapid development of the Internet of Things, the location privacy is considered as an important security issue in sensor networks. Traditional encryption methods cannot effectively prevent attackers finding the position of monitoring object by reverse tracing. To solve these problems and considering attackers have enhanced visibility, we propose a location privacy protection strategy called PRABNS (phantom routing based on area and brother neighbor selecting). The strategy can make the phantom nodes evenly distributed around the source node, and the adjacent data packet have a certain angle space through the selection of partial region, and thus it can increase the diversity for the path of source node to the base station by selecting sibling nodes. The simulation results show that the strategy can provide better privacy preservation, and extend the secure time without increasing too much energy consumption.