A Lightweight Certificateless Group Key Agreement Method without Pairing Based on Blockchain for Smart Grid

被引:9
|
作者
Wang, Zhihao [1 ]
Huo, Ru [1 ,2 ]
Wang, Shuo [2 ,3 ]
机构
[1] Beijing Univ Technol, Informat Dept, Beijing 100124, Peoples R China
[2] Purple Mt Labs, Nanjing 211111, Peoples R China
[3] Beijing Univ Posts & Telecommun, State Key Lab Networking & Switching Technol, Beijing 100876, Peoples R China
来源
FUTURE INTERNET | 2022年 / 14卷 / 04期
基金
国家重点研发计划;
关键词
smart grid; certificateless public key; group key; blockchain; key management; AUTHENTICATION; MANAGEMENT; SCHEME;
D O I
10.3390/fi14040119
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
In smart grids, the access verification of a large number of intelligent gateways and terminal devices has become one of the main concerns to ensure system security. This means that smart grids need a new key management method that is safe and efficient and has a low computational cost. Although a large number of scholars have conducted relevant research, most of these schemes cannot balance the computational overhead and security. Therefore, we propose a lightweight and secure key management method, having a low computational overhead, based on blockchain for smart grids. Firstly, we redesigned the architecture of the smart grid based on blockchain and completed the division of various entities. Furthermore, we designed a pairing-free certification authenticated group key agreement method based on blockchain under the architecture. Finally, we achieved higher security attributes, and lower authentication delay and computational overhead, compared to the traditional schemes, as shown in performance analysis and comparison.
引用
收藏
页数:11
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