Survey on Data Aggregation and Privacy Protection of User Query in Smart Grid

doi:10.3969/j.issn.1671-1122.2021.11.008

Abstract

Abstract:

Privacy protection is an important and popular research topic for the smart grid. First of all, this article introduced the background of the smart grid and the existing security issues, and analyzed the importance of privacy protection. Then, this article introduced the current research directions and main technical means of privacy protection in the smart grid, including cryptography technology, blockchain and secure multi-party computing, etc. There were some new breakthroughs in the smart grid privacy protection by combining artificial intelligence technology, as well as aspected that need further research, provided a technical basis for further research. Finally, this article pointed out that in order to further improve the efficiency and light weight of privacy protection and sharing, we should combine several key technologies, such as cryptography, blockchain, artificial intelligence, privacy enhancement technology, and edge computing, etc. In order to solve these existing problems of privacy protection in the smart grid, including low sharing efficiency and high communication costs, this article pointed out some future research directions, hoping to promote the industry.

Key words: smart grids, privacy protection, cryptography, privacy enhancement technology, blockchain

CLC Number:

TP309

LI Kunchang, SHI Runhua, LI En. Survey on Data Aggregation and Privacy Protection of User Query in Smart Grid[J]. Netinfo Security, 2021, 21(11): 65-74.

Figures/Tables 9

References 33

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数据元素	描述
姓名	使用者身份信息
地址	使用者的家庭住址
户号	使用者账户的唯一标识符
电表号	使用者电表的唯一标识符
电表IP	使用者电表的IP地址
电表读数	当前电表的读数（单位为kW·h）
实时账单	当前电表用电的实时消费信息
历史账单	电表的历史消费记录
网络信息	电器间连接网络状态
生活模式	日常生活习惯、电器使用时段和时长等信息
服务提供商	服务提供者的身份等信息

	分类	方案	技术方法	应用场景	安全特性
文献[17]	基于Paillier加密的数据聚合	基于Paillier加密系统的分层聚合数据	Paillier加密、分层聚合	智能电网	数据保密性
文献[18]	基于Paillier加密的数据聚合	智能电表本身使用Paillier 密码系统进行聚合的方案	Paillier 加密	智能电表	隐私保护
文献[19]	基于其他同态加密的数据聚合	使用同态加密系统对数据加密值及加密密钥的聚合	同态加密	智能电网大数据	安全存储
文献[21]		基于同态加密隐私保护的实时电价计费方案	加法、混合乘法同态加密	智能电网	隐私保护
文献[22]		基于同态加密的智能电表数据聚合方案	同态加密	智能电网	隐私保护
文献[16]	基于雾计算的数据聚合	基于雾计算的智能电网数据聚合研究	雾节点、云节点	智能电网	细粒度数据共享

研究文献	分类	方案	技术方法	应用场景	安全特性
文献[27]	支持聚合函数的隐私保护数据查询	PriSense、数据查询	PriSense、聚合	智能电网	隐私保护
文献[28]		Sum聚合、数据查询	同态加密、密钥	智能电网	隐私保护
文献[29]		点对点、可验证数据聚合	聚合函数	智能电网、云存储	数据保密性
文献[30]	多功能数据聚合的隐私数据查询	MuDA、数据查询	多种统计	智能电网	隐私保护
文献[31]	多功能数据聚合的隐私数据查询	PPM-HAD、数据查询	多功能数据聚合	医疗系统、智能电网	隐私保护
文献[26]	轻量级隐私数据查询	基于Diffie-Hellman密钥交换协议的隐私保护数据查询方案	密钥交换、同态加密	智能电网	隐私保护、云计算