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

Author

Listed:
  • Zhihao Wang

    (Information Department, Beijing University of Technology, Beijing 100124, China)

  • Ru Huo

    (Information Department, Beijing University of Technology, Beijing 100124, China
    Purple Mountain Laboratories, Nanjing 211111, China)

  • Shuo Wang

    (Purple Mountain Laboratories, Nanjing 211111, China
    State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China)

Abstract

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.

Suggested Citation

  • Zhihao Wang & Ru Huo & Shuo Wang, 2022. "A Lightweight Certificateless Group Key Agreement Method without Pairing Based on Blockchain for Smart Grid," Future Internet, MDPI, vol. 14(4), pages 1-11, April.
    • Handle: RePEc:gam:jftint:v:14:y:2022:i:4:p:119-:d:793888
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