A Novel and Efficient Anonymous Authentication Scheme Based on Extended Chebyshev Chaotic Maps for Smart Grid

In a smart grid, the identity authentication between a smart meter and an aggregator is a prerequisite for both parties to establish a secure channel. All existing authentication schemes have their own shortcomings in either security or efficiency to make them difficult to meet the security requirements of the smart grid. In this paper, we are motivated to propose an efficient and secure mutual authentication scheme based on the extended Chebyshev chaotic maps. The smart meters and aggregators are registered with a trusted third party to conduct a mutual authentication. The proposed scheme provides anonymity protection for smart meters to achieve perfect forward secrecy. Through security analysis, we conclude that the proposed scheme has the characteristics of high security. In addition, we compare the proposed scheme with other three schemes in terms of number of encryption operations, computation delay. The performance comparison demonstrates that the proposed scheme is efficient without sacrificing the desired security properties.