低能耗支持完整性验证的数据融合隐私保护方法

Data fusion privacy protection method with low energy consumption and integrity verification

针对无线传感器网络中数据完整性和隐私保护难以同时兼顾的问题,提出一种低能耗支持完整性验证的数据融合隐私保护方法PPMLEC。PPMLEC将节点的ID号用节点的簇号与节点号组合的方式表示,将ID号隐性传输,同时利用哈希函数计算扰动值,对节点采集的数据进行扰动,提高数据的安全性,通过构造两棵融合树在基站进行完整性验证。实验结果表明:在没有能增加网络能耗的前提下,PPMLEC在通信量方面比现有的基于分布式认证的完整性保护方法降低了约4.7%,比DCSA方法降低了约9.5%。

Aiming at the problem that data integrity and privacy protection are difficult to take into account at the same time in wireless sensor networks,a data fusion privacy protection method PPMLEC with low energy consumption and integrity verification is proposed.PPMLEC expresses the ID number of a node by the combination of cluster number and node number,transmits the ID number implicitly,calculates the disturbance value by hash function,disturbs the data collected by the node,and improves the security of the data,and verifies the integrity at the base station by constructing two fusion trees.Experimental results show that,on the premise of not increasing network energy consumption,PPMLEC reduces the traffic by about 4.7%compared with the existing integrity protection scheme based on distributed authentication and by about 9.5%compared with DCSA scheme.