基于对称密码的无线传感器网络安全定位  

Secure Localization Based on Symmetric Cryptography in Wireless Sensor Networks

作　　者：靖刚[1,2] 吴俊敏[1,2] 徐宏力[1,2] 黄刘生[1,2] 

机构地区：[1]中国科学技术大学计算机科学与技术系,合肥230027 [2]中国科学技术大学苏州研究院,苏州215123

出　　处：《计算机工程》2009年第12期117-119,共3页Computer Engineering

基　　金：国家"973"计划基金资助项目"无线传感器网络应用示范系统"(2006CB303006);国家"973"计划前期研究专项基金资助项目"多层结构的移动传感网络理论;关键技术及动态监测仿真研究"(2007CB316505)

摘　　要：伪装攻击通过恶意的锚节点向网络中发布虚假位置信息从而对定位应用进行攻击。针对上述问题,考虑无线传感器网络节点能量受限的特性,提出一种基于对称密码加密的认证方案来防御伪装攻击。实验结果表明,在伪装攻击存在的情况下,该方案能够使加权质心算法的定位误差在1m之内的概率由40%提高到70%,从而保证定位的正确性。This paper presents a security threat model called impersonating attack model. In this model, the malicious beacons supply forged location information to the regular sensors, so as to attack the location applications. Since sensor nodes are power and computational capacities limited, a scheme based on symmetric cryptography is proposed to defense against impersonating attack. Experimental results show that, even in the presence of impersonating attack, the scheme can decrease the cumulative localization error of Weighted Centroid Algorithm. The probability which the localization error is within 1 m can be improved from 40% to 70% with the scheme.

关 键 词：无线传感器网络 伪装攻击 安全定位 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]