基于混沌序列的无线传感网络敏感数据分层加密存储方法  

Hierarchical Encryption Storage Method of Sensitive Data in Wireless Sensor Networks Based on Chaotic Sequence

作　　者：张喜铭[1,2] 零颖俏 马一宁 杨春 ZHANG Ximing;LING Yingqiao;MA Yining;YANG Chun(College of Electrical and Information Engineering,Hunan University,Changsha Hu'nan 410000,China;China Southern Power Grid Co.,Ltd.,Guangzhou Guangdong 510000,China;China Southern Power Grid Energy Development Research Institute,Guangzhou Guangdong 510000,China)

机构地区：[1]湖南大学电气与信息工程学院,湖南长沙410000 [2]中国南方电网有限责任公司,广东广州510000 [3]南方电网能源发展研究院,广东广州510000

出　　处：《传感技术学报》2024年第11期1964-1970,共7页Chinese Journal of Sensors and Actuators

基　　金：国家重点研发计划项目(2021YEE0204200);南方电网公司信息专题研究项目(000000HY41220007);南方电网公司信息专题研究项目(000000HY41220003)。

摘　　要：无线传感网络中的敏感数据加密存储过程,需要解决传感数据属性小差异的影响,这种小差异的混沌性会对分类过程造成干扰,导致以单层加密存储为基础的现有方法安全性降低。为此,提出基于混沌序列的无线传感网络敏感数据分层加密存储方法。采用矩阵补全算法采集无线传感网络敏感数据,并通过基于相似度的聚类算法对敏感数据进行聚类处理,将聚类后的数据利用混沌序列表示。结合混沌序列,利用初始密钥和编码系数矩阵对聚类后的敏感数据进行分层加密,并通过提取加密数据的索引完成无线传感网络敏感数据的分层加密存储。仿真结果表明,所提方法的加密时间在17.5 s附近波动、存储数据量区间为30 GB~39 GB、安全性较高。综上可知,所提方法具有较好的无线传感网络敏感数据分层加密存储性能。For the encryption and storage process of sensitive data in wireless sensor networks,the impact of small differences in sensor data attributes needs to addressed.This chaotic nature of small differences can interfere with the classification process,leading to a decrease in the security of existing methods based on single-layer encrypted storage.Therefore,a hierarchical encryption storage method for sensitive data in wireless sensor networks based on chaotic sequences is proposed.The matrix completion algorithm is used to collect sensitive data from wireless sensor networks,and the clustering algorithm based on similarity is used to cluster the sensitive data.The clustered data are represented by using chaotic sequences.Combined with chaotic sequences,the sensitive data after clustering are layered-encrypted by using the initial key and encoding coefficient matrix,and the sensitive data in wireless sensor networks are layeredencrypted and stored by extracting the index of the encrypted data.The simulation results show that the encryption time of the proposed method fluctuates around 17.5 seconds,with a storage data volume range of 30 GB~39 GB,and the security level is high.In summary,the proposed method has good performance in layered encryption and storage of sensitive data in wireless sensor networks.

关 键 词：无线传感网络 混沌序列 分层加密 凸优化求解 数据相似度 相似度聚类 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]