计算机工程 ›› 2009, Vol. 35 ›› Issue (12): 117-119.doi: 10.3969/j.issn.1000-3428.2009.12.041

• 安全技术 • 上一篇    下一篇

基于对称密码的无线传感器网络安全定位

靖 刚1,2,吴俊敏1,2,徐宏力1,2,黄刘生1,2   

  1. (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)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-06-20 发布日期:2009-06-20

Secure Localization Based on Symmetric Cryptography              in Wireless Sensor Networks

JING Gang1,2, WU Jun-min1,2, XU Hong-li1,2, HUANG Liu-sheng1,2   

  1. (1. Department of Computer Science and Technology, University of Science and Technology of China, Hefei 230027;2. Suzhou Institute for Advanced Study, University of Science and Technology of China, Suzhou 215123)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-06-20 Published:2009-06-20

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1 m之内的概率由40%提高到70%,从而保证定位的正确性。

关键词: 无线传感器网络, 伪装攻击, 安全定位

Abstract: 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.

Key words: Wireless Sensor Networks(WSN), impersonating attack, secure localization

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