摘要
随着我国电网智能化升级的不断深入以及边缘计算技术的兴起,如何对电网边缘端存储的用电数据进行安全防护和按需检索成为实现电网边缘化智能计算的关键问题。对此提出一种新型直接索引结构方案,通过采用哈希SHA256算法产生一组码字数组作为记录的索引,搜索时用户输入多关键字并产生对应的陷门,该陷门与索引进行精准匹配,并将所有匹配结果反馈给用户。该方案具有较低的空间复杂度;通过利用智能电表的采样数据,建立数学模型并验证了该方法的有效性。
With the continuous deepening of the intelligent upgrade of China s power grid and the rise of edge computing technology,how to carry out security protection and on-demand retrieval of power consumption data stored at the edge of the grid becomes a key issue for intelligent calculation of grid marginalization.This paper proposes a new direct index structure scheme.The hash SHA256 algorithm was used to generate a set of code-word arrays as the index of the record.In the process of searching,the users input multiple keywords and generated corresponding trapdoors.The trapdoor and the index were precisely matched.All the matching results were fed back to the users.This scheme could achieve lower space complexity.And we used the sampling data of the smart meter and built a mathematical model,which verified the effectiveness of the method.
作者
许爱东
朱静
蒋屹新
张宇南
吴涛
蒋龙生
Xu Aidong;Zhu Jing;Jiang Qixin;Zhang Yunan;Wu Tao;Jiang Longsheng(SEPRI,China Southern Grid,Co.,Ltd.,Guangzhou 510670,Guangdong,China;School of Communication and Information Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,China;Cyberspace Security and Information Law Institute,Chongqing University of Posts and Telecommunications,Chongqing 400065,China)
出处
《计算机应用与软件》
北大核心
2022年第7期310-314,342,共6页
Computer Applications and Software
基金
国家重点研发计划项目(2018YFB0904900,2018YFB0904905)
国家自然科学基金项目(61802039,61772098)
重庆市教育委员会科学技术研究项目(KJQN201800630)。
关键词
智能电网
哈希
密文检索
多关键字
边缘计算
Smart grids
Hash
Cipher-text retrieval
Multiple keywords
Edge computing
