A Mutual Authentication and Key Agreement Protocol for Smart Grid Environment Using Lattice

Internet of Things (IoT) has been experienced in various communication technologies. In recent years, as an application of IoT, smart grid dragged great attention from industry and academia. Smart grid can establish the sharing of information among smart meters and the service provider via the Internet protocol (IP)-based communication. This information sharing among various entities in smart grid system may lead to make the system vulnerable to various security and privacy issues. Various security protocols are existed in the literature which provides the secure communication of smart meters with the service provider by establishing a secure connection. However, many of them fail to propose a security protocol where the service provider can share the information with different smart meters and can negotiate a session key with each smart meters for further communication. Further, the existed schemes are exposed to quantum attack as they have used the traditional cryptographic tool in their implementation. Considering these issues, we design a lattice-based mutual authentication and key agreement protocol for smart grid which permits a secure communication among the service provider and the smart meter. The proposed protocol also allows the service provider to initiate a communication with smart meters in the smart grid system. The security analysis shows the security resistance of the proposed scheme with existed as well as quantum attack.KeywordsSecurityPrivacySmart gridAuthenticationLattice-based cryptography