一种基于复数域的数据融合完整性保护算法

A Complex Field-based Integrity-protecting Data Aggregation Algorithm

随着无线传感器网络技术的快速发展,传感器网络开始承载越来越多的应用服务,很多应用都需要保证信息或数据的隐私性和完整性,这对网络数据融合提出了更高的要求。因此,设计一种能够实现隐私保护兼完整性保护的数据融合方案显得尤为重要。文中提出了一种基于复数域的新无线传感器网络数据融合完整性保护算法,通过对实部真实数据增添私有种子进行隐私保护,并利用复数的虚实部关联特性进行数据的完整性保护。此外,算法依靠数据融合树型结构本身的特性,减少了数据通信开销,计算复杂度低。理论分析表明,在恶意节点的各种攻击情况下,算法具有良好的完整性保护性能。仿真结果显示,算法可以在有效保护数据隐私性和完整性的前提下,花费与TAG相同的时间,得到精确的数据融合结果。

With the rapid development of network communication technology ,the interact begins to carry more and more application serv- ices,it brings forward very high demands for network data aggregation. So, designing a data aggregation scheme which can protect both data privacy and integrity seems very important. It presents a complex field-based new WSN data aggregation algorithm for integrity pro- tecting. It adds privacy seed to the real sampling data in order to preserve privacy and protect data integrity by using the associated char- acteristics between the real part and imaginary part of complex numbers. Moreover,depending on its own characteristics of data aggrega- tion tree structure, the algorithm decreases data communication overhead and computation overhead. Theoretical analysis shows that,in all attacking cases, the algorithm achieves good integrity protection performance. The simulation results show that under the premise of pri- vacy preserving and integrity protecting, the algorithm can get accurate data aggregation result ,just spending the same time of TAG.