基于同态加密的智能电网多维数据聚合方案

Smart grid multi-dimensional data aggregation scheme based on homomorphic encryption

针对目前智能电网数据聚合中数据安全和用户身份隐私问题,提出一种基于智能电网中隐私保护多维数据聚合方案。通过超递增序列构造多维数据,采用Pailler同态加密技术对多维用电数据进行加密;为保证用户的匿名性,引入假名技术;智能电表端采集用户的用电维度信息,使控制中心获得某一时间段内每维用电设备具体用户使用数量,实现细粒度数据的精确分析。分析结果表明,该方案可以实现用户匿名性、机密性,数据完整性,能够满足更加精确的细粒度分析需求,在计算成本和通信成本方面也具有一定优势。

Aiming at the current data security and user identity privacy issues in smart grid data aggregation,a multi-dimensional data aggregation scheme based on privacy protection in smart grid was proposed.Multi-dimensional data were constructed using super-increasing sequence,and Pailler homomorphic encryption technology was used to encrypt multi-dimensional electricity consumption data.To ensure the anonymity of users,pseudonymization technology was introduced.The smart meter terminal collected the dimensional information of the user’s electricity consumption,so that the control center obtained the specific number of users using each dimension of electrical equipment in a certain period of time,enabling accurate analysis of fine-grained data.The analysis results show that the proposed scheme can achieve user anonymity,confidentiality,and data integrity.At the same time,it can meet the needs of more accurate fine-grained analysis,and it also has certain advantages in terms of computational cost and communication cost.