Quantum-resistant dynamic authenticated group key agreement scheme for the Internet of Things

Abstract

With the recent advances in quantum computing, the key agreement algorithm based on traditional cryptography theory, which is applied to the Internet of Things (IoT) scenario, will no longer be secure due to the possibility of information leakage. In this paper, we propose a anti-quantum dynamic authenticated group key agreement scheme (AQDA-GKA) according to the ring-learning with errors (RLWE) problem, which is suitable for IoT environments. First, the proposed AQDA-GKA scheme can implement a group key agreement against quantum computing attacks by leveraging an RLWE-based key agreement mechanism. Second, this scheme can achieve dynamic node management, ensuring that any node can freely join or exit the current group. Third, we formally prove that the proposed scheme can resist quantum computing attacks as well as collusion attacks. Finally, the performance and security analysis reveals that the proposed AQDA-GKA scheme is secure and effective.

Keywords

group key agreement / lattice-based cryptography / dynamic authentication / collusion attack resistance / Internet of Things

Funding

National Engineering Research Center of Classified Protection and Safeguard Technology for Cybersecurity(C23640-XD-07)

Open Foundation of Key Laboratory of Cyberspace Security of Ministry of Education of China and Henan Key Laboratory of Network Cryptography(KLCS20240301)