Journal of Information Security Research ›› 2017, Vol. 3 ›› Issue (6): 523-528.

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A PrivacyPreserving Data Aggregation Algorithm in Wireless Sensor Networks


  • Received:2017-06-19 Online:2017-06-15 Published:2017-06-19



  1. 北京交通大学电子信息工程学院
  • 通讯作者: 李超
  • 作者简介:博士研究生,主要研究方向为数据融合、无线通信.

Abstract: With the practical application in wireless sensor networks, data aggregation technique becomes one of the most important research areas. However, Wireless sensor networks are always deployed in remote and hostile environments to transmit sensitive information, in which sensor nodes are apt to encounter some serious leakage of sensitive data in data aggregation. Hence, privacy preservation is becoming an increasingly important issue in security data aggregation for wireless sensor networks. Therefore, the algorithms of privacy security, whichis based on data aggregation in wireless sensor network, are studied. Meanwhile, the privacypreserving data aggregation models are researched. At present, there are two main privacypreserving methods are studied, which are hopbyhop encryption method and endtoend encryption method. In hopbyhop encryption method, the SMART (slicemixed aggregation) algorithm is representative. However, this algorithm destroys the raw data of each sensor node, which make the fusion center couldnt restore the raw data in each sensor node. In endtoend encryption method, ECC (elliptic curve cryptography) based homomorphic encryption algorithms are able to restore the fusion data to some extent. Therefore, a novel privacypreserving data aggregation algorithm (ECCSMART) is proposed, which combines the ECC algorithm and SMART algorithm. The proposed althrithm can restore the sliced data in fusion center, and enhance the security of the wireless sensor networks.

Key words: wireless sensor nerworks, privacypreserving, data aggregation, elliptic curve cryptography, data restore

摘要: 随着无线传感器网络的实用化,数据融合技术成为一个重要的研究方向.但是,在数据融合的过程中,数据需要经过中间节点的处理.数据传输时若不进行处理,直接传输明文数据,则存在着敏感和隐私信息的泄露风险.由此可见,研究面向隐私保护的数据融合理论和方法,具有非常重要的意义.通过研究无线传感器网络中的数据融合技术,分析了数据融合技术面临的隐私安全问题,着重研究了面向隐私保护的数据融合算法.同时,提出了一种可将碎片数据还原为原始数据的隐私保护数据融合算法.该算法在保证隐私数据安全的基础上,最大限度地降低了原始数据的损害,提高了数据的可用性.

关键词: 无线传感器网络, 隐私保护, 数据融合, 椭圆曲线加密, 数据还原