Physical Layer Assist Mutual Authentication scheme for smart meter system

The paper presents the mutual message authentication scheme for the two-way communication smart meter system, where the Public Key Infrastructure (PKI) based Physical Layer Assist Mutual Authentication (PLAMA) scheme is introduced. The proposed scheme is designed to guarantee the message sent by the expected source can only be fully received by the expected destination while the expected destination also can authenticate the message from the expected source. The proposed scheme can achieve lightweight and fast authentication, which yield the lower time delay for mutual authentication and can satisfy the requirement of the real-time control over the smart grid.