Towards post-quantum authenticated key agreement scheme for mobile devices

Abstract

Mobile device communication enables mobile devices to connect with each other, exchange data, and access services, where security is a crucial aspect to protect sensitive data and privacy. The authenticated key agreement (AKA) protocols ensure authorized and secure communication in such environments. As the security of current AKA protocols relies on the hardness of discrete logarithmic or factorization, it will lead to a greater threat in the post-quantum world. Consequently, Ding et al. created a lattice-based AKA scheme for the quantum world. Although the protocol is simple for mobile devices, it is susceptible to insider attacks. Moreover, the scope of efficiency enhancement of this protocol needs to be explored. Therefore, to provide a secure and efficient solution, a new lattice-based AKA scheme has been proposed in this paper. It is designed with the idea of zero knowledge-based authentication. Further, our protocol resists key mismatch, and signal leakage attacks and supports the reuse of the private key of the server, perfect forward secrecy, and anonymity features. Additionally, we have talked about how our protocol stacks up in terms of computing complexity when compared to competing with other zero knowledge-based authenticated key agreement systems.