Dynamic Range Query Privacy-Preserving Scheme for Blockchain-Enhanced Smart Grid Based on Lattice

【Author】 Li, Kun-Chang; Shi, Run-Hua; Guo, Wan-Peng; Wang, Peng-Bo; Shao, Bo-Shen

【Source】IEEE TRANSACTIONS ON DEPENDABLE AND SECURE COMPUTING

【影响因子】6.791

【Abstract】Blockchain-enhanced Smart Grid has attracted a lot of attention from scholars in recent years, due to its excellent decentralization, anti-collusion and immutability. With the wide deployment of blockchain and the popularity of more accurate intelligent applications, its role in Smart Grid is becoming more and more irreplaceable. However, because of the threat of quantum computer, it still confronts the risk of privacy disclosure. In this article, we propose a novel and dynamic range query privacy-preserving scheme for blockchain-enhanced Smart Grid based on lattice. In this scheme, lattice-based homomorphic encryption algorithm is designed to resist the attack of quantum computer and realizes data aggregation to improve efficiency. In particular, this article designs a dynamic range query method with the aid of consortium blockchain by using proxy re-encryption. This method avoids the communication pressure caused by repeated data collection and improves the query efficiency and user experience. In addition, dynamic ciphertext and users update are considered, which further improves the flexibility and feasibility of the scheme. Last but not least, security analysis, exhaustive performance analysis and experiments show that our proposed scheme meets the requirements of dynamic, privacy, security and low computational cost.

【Keywords】Smart grids; Blockchains; Security; Lattices; Quantum computing; Heuristic algorithms; Dynamic range; Consortium blockchain; lattice; privacy-preserving; range query; smart grid

【发表时间】2024 JUL-AUG

【收录时间】2024-07-29

【文献类型】实验仿真

【主题类别】

区块链应用-实体经济-电力领域