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A secure and efficient authenticated key exchange scheme for smart grid.

Zhe Xia1, Tao Liu1, Jingjing Wang2

  • 1School of Computer Science and Artificial Intelligence, Wuhan University of Technology, Wuhan, China.

Heliyon
|July 7, 2023
PubMed
Summary
This summary is machine-generated.

We developed an efficient two-round authenticated key exchange (AKE) scheme for smart grids. This practical solution reduces computational and communication overhead, enhancing secure key establishment in resource-constrained environments.

Keywords:
Key establishmentSecure data transmissionSmart grid

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Area of Science:

  • Computer Science
  • Electrical Engineering
  • Cybersecurity

Background:

  • Smart grids rely on secure data transmission, making authenticated key exchange (AKE) crucial.
  • Existing AKE schemes are often inefficient for smart grids due to high computational and communication demands.
  • Limited resources in smart meters necessitate optimized AKE solutions.

Purpose of the Study:

  • To propose a novel, efficient two-round AKE scheme tailored for smart grid environments.
  • To address the limitations of existing AKE schemes regarding security parameters and communication rounds.
  • To provide a practical solution for secure key establishment in smart grids.

Main Methods:

  • Integration of Diffie-Hellman key exchange with a tightly secure digital signature.
  • Development of a two-round communication protocol for key negotiation and confirmation.
  • Analysis of security proofs with tight reductions to minimize security parameter size.

Main Results:

  • The proposed scheme achieves mutual authentication and explicit session key confirmation.
  • It requires fewer communication rounds (two) compared to traditional three-round schemes.
  • Smaller security parameters can be used, reducing computational and communication overhead.

Conclusions:

  • The novel two-round AKE scheme offers a more practical and efficient solution for smart grids.
  • It effectively balances security requirements with the resource constraints of smart meters.
  • This contributes to enhanced data security and integrity in smart grid infrastructure.