A post-quantum authenticated key establishment protocol in healthcare systems
Amir Hossein Salmani, Maryam Rajabzadeh Asaar
Abstract In internet of things (IOT) healthcare systems, sensitive patient information is transmitted over the network to medical professionals. Numerous lightweight authentication protocols have been proposed; however, most of them remain vulnerable to various cyberattacks, allowing attackers to eavesdrop on or manipulate transmitted data. We examine several recently proposed lightweight authentication schemes for healthcare systems. Our security analysis demonstrates that these schemes remain vulnerable to malicious gateway attacks, desynchronization attacks, and key screw attacks. .To address these issues and ensure post- quantum security in healthcare IoT, we propose a post-quantum key establishment protocol based on lattice- based cryptography (LWE). the proposed scheme prevents the gateway from accessing both the secret keys and their parameters, thereby eliminating the possibility of malicious gateway attacks. The proposed protocol ensures user anonymity, forward secrecy, and resistance to impersonation, key screw, and desynchronization attacks.. The proposed protocol ensures secure and efficient establishment of three-round key establishment among entities . Our performance evaluation shows that the proposed scheme achieves lower computation and communication overhead compared to recent related works. The security of the protocol is thoroughly analyzed through informal reasoning, Burrows–Abadi–Needham (BAN) logic, and ProVerif, confirming its robustness and suitability for resource-constrained IoT-based healthcare environments.
•May 28, 2026•0 citations