Energy consumption

Scheme (mathematics)

Engineering

Pure mathematics

Smart card

Computer security

Encryption

Smart grid

Elliptic curve

Computer science

Traceability

Elliptic curve cryptography

Public-key cryptography

Computer network

Mathematics

Mathematical analysis

Elliptic Curve Digital Signature Algorithm

Cryptography

Software engineering

Authentication (law)

Electrical engineering

IEEE Transactions on Industrial Informatics

The communication among smart meters (SMs) and neighborhood area network (NAN) gateways is a fundamental requisite for managing the energy consumption at the consumer site. The bidirectional communication among SMs and NANs over the insecure public channel is vulnerable to impersonation, SM traceability, and SM physical capturing attacks. Many existing schemes’ insecurities and/or inefficiencies call for an efficient and secure authentication scheme for smart grid infrastructure. In this article, we present a privacy preserving and lightweight authentication scheme for smart grid (LAS-SG) using elliptic curve cryptography. The proposed <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">LAS-SG</i> is proved as secure under the standard model. Moreover, the efficiency of the LAS-SG is extracted through a real-time experiment, which attests that proposed <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">LAS-SG</i> completes a round of authentication in 20.331 ms by exchanging only two messages and 192 B. Due to the adequate efficiency and ample security, the proposed <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">LAS-SG</i> is more appropriate for SG environments.

LAS-SG: An Elliptic Curve-Based Lightweight Authentication Scheme for Smart Grid Environments