一种WSN位置隐私保护方案分析和改进

摘要

Aiming at the security limitation of D. Singel6e location privacy protection in wireless sensor network (WSN) , an improved scheme is proposed, which forges the location privacy based on temporary location information. Pseudonyms calculation is performed on node ID and session key with dual random variables, and the communication pseudonyms are updated with the pseudonym-created function and temporary location information, the security of the communication process is then protected. Analyses show that the new scheme has stronger performance against eavesdropping and is energy efficiency.%针对无线传感网络D.Singelée位置隐私保护方案存在安全缺陷的问题,提出一种基于临时位置信息伪造位置隐私的改进方案.对节点编号信息和会话密钥采用双随机变量进行假名计算,采用假名生成函数和临时位置信息更新通信假名,保证通信的安全性.分析表明该方案的抗监听攻击能力增强,并有较低的能量消耗.