无线传感器网络中安全数据融合方法研究

Research on Security of Data Aggregation in Wireless Sensor Networks

随着无线传感器网络应用的不断增加,很多应用都需要保证信息或数据的隐私性和完整性,这就对数据融合提出了更高的要求和新的挑战,因此设计一种兼顾数据机密性和完整性的数据融合算法就显得尤为重要。文中提出了一种基于同态加密对数据的安全性进行保护和基于同态验证码对数据的完整性进行保护的算法。同态加密可以对加密数据直接进行操作,同态验证码抗攻击性强,具有良好的完整性保护特性。同时算法依据数据融合的树结构本身的特征,减少了数据通信开销,计算复杂度低。理论分析和仿真结果显示了该方法的有效性。

With the increasing application of wireless sensor networks,many applications need to guarantee the privacy and integrity of the information or data,the data fusion has been put forward higher requirements and new challenges,therefore,to design an data fusion algo-rithm with both data confidentiality and integrity is particularly important. It presents an algorithm for data security protection based on homomorphic encryption and to promise the data integrity based on homomorphic verification code. Homomorphic verficiation code of strong attack resisting,has good properties of integrity protection. At the same time,the algorithm based on tree structure data fusion it-self,reduces the data communication overhead with low computing complexity. Theoretical analysis and simulation results show the effec-tiveness of the proposed method.