安全的WSN数据融合隐私保护方案设计

针对无线传感器网络数据融合过程中的数据隐私和完整性保护问题，提出一种安全的数据融合隐私保护方案(SPPDA)，把节点的私密因子与原始数据构成复数，采用同态加密方法对复数进行加密，实现在密文不解密的情况下进行数据融合，同时采用基于复数的完整性验证方法，确保数据的可靠性。理论分析和仿真结果表明，SPPDA方案的计算代价和通信开销较少，数据融合的精确度高。

Design of secure privacy-preserving data aggregation scheme for wireless sensor network

A secure privacy-preserving data aggregation (SPPDA) scheme was proposed to preserve data privacy and integrity during data aggregation in wireless sensor network. Firstly, a complex number is composed from the private factor of the nodes and the original data; then the complex number is encrypted with homomorphic encryption method,which can realize the data aggregation in the case of not decrypt ciphertext. Also,the reliability of date is ensued by using integrity verification method based on complex.Theoretical analysis and simulation results show that computational cost and communication overhead of the SPPDA are less, and accuracy of data aggregation results is high.