PiLike: Post-Quantum Identity-Based Lightweight Authenticated Key Exchange Protocol for IIoT Environments

As an imperative division of the Internet of Things (IoT), Industrial IoT (IIoT) has also attracted full attention. IIoT networks are equipped with various authenticated key exchange techniques under the cumbersome Diffie–Hellman (DH) problems and certificate management overheads. However, DH-type problems are vulnerable to quantum cryptanalysis. In this article, a novel identity-based authenticated key exchange protocol is designed using the concept of lattice cryptography, which enables the different security features in the IIoT in open wireless communication. Due to the lattice hard assumptions, the proposed protocol can withstand a quantum attack. Rigorous formal security analysis has been made, which shows the ability of the proposed protocol to resist existing as well as quantum attacks. Performance results demonstrate that the proposed protocol exhibits better communication, energy consumption, cryptographic key storage, and computation costs than other similar state of the arts.