一种基于电网计量终端的可验证密文检索方案  

A Verifiable Ciphertext Retrieval Scheme Based on Power Grid Metering Terminal

作　　者：覃予鹏 林秀清 程万旭 陈珏羽 QIN Yupeng;LIN Xiuqing;CHENG Wanxu;CHEN Jueyu(Measurement Center of Guangxi Power Grid Co.,Ltd.,Guangxi Nanning 530000,China)

机构地区：[1]广西电网有限责任公司计量中心,广西南宁530000

出　　处：《广西电力》2024年第5期40-44,共5页Guangxi Electric Power

摘　　要：智能电网数据以明文形式存储到云服务器存在重大的隐私泄漏风险,现有的加密方案由于数据访问期间需要频繁加密、解密,会降低执行效率。为此,本文基于智能电网计量终端提出了一种新型的可验证密文检索方案,基于默克尔树计算根哈希值,在确保数据保密性和安全性的同时进行搜索,并利用区块链技术验证检索结果。同时,设计了一个多云异构分布式存储系统来存储用户数据,增强数据可用性。最后设计了比对实验,通过方案对比验证了所提方案的性能。Smart grid data is stored in plaintext in cloud servers,which poses a significant risk of privacy leakage.The existing encryption scheme requires frequent encryption and decryption during data access,which will reduce the execution efficiency.Therefor,a new verifiable ciphertext retrieval scheme based on smart grid metering terminals is proposed in this paper.The root hash value is calculated based on the Merkle tree,the search is carried out while ensuring the confidentiality and security of the data,and the search results are verified by blockchain technology.At the same time,a multi-cloud heterogeneous distributed storage system is designed to store user data and enhance data availability.Finally,experiments are designed to verify the performance of the proposed scheme through scheme comparison.

关 键 词：智能电网 计量终端 默克尔树 可搜索加密 数据可用性 

分 类 号：TM769[电气工程—电力系统及自动化]