Title: An improved authenticated key agreement protocol with privacy protection for mobile healthcare systems with wearable sensors

Authors: Tian-Fu Lee; Yin-Yu Diao; Meriske Chen

Addresses: Department of Medical Informatics, Institute of Medical Sciences, Tzu Chi University, Hualien, 97004, Taiwan ' Department of Medical Informatics, Tzu Chi University, Hualien, 97004, Taiwan ' Institute of Medical Sciences, Tzu Chi University, Hualien, 97004, Taiwan

Abstract: Authenticated key agreement schemes for mobile healthcare systems with wearable sensors enables patients' wearable devices, the mobile terminal, healthcare staff and the healthcare service to authenticate each other and establish a secure communication channel. Recently, Li et al. proposed an authenticated key agreement scheme based on elliptic curve cryptography for mobile healthcare systems with wearable sensors. Although the scheme of Li et al. provides a complete solution for providing healthcare staff, wearable sensors, mobile users, controller nodes and the healthcare service provider with authentication and key agreement, their scheme still fails to realise mutual authentication, user privacy protection, perfect forward secrecy. This investigation discusses these limitations and presents an improved protocol based on the scheme of Li et al. The improved protocol not only avoids the limitations in previous approaches, but also increases the efficiency in computation.

Keywords: authentication; key agreement; elliptic curve cryptography; ECC; privacy protection; mobile healthcare systems; wearable sensors.

DOI: 10.1504/IJBSR.2020.10031083

International Journal of Business and Systems Research, 2020 Vol.14 No.4, pp.385 - 397

Received: 30 Jul 2018
Accepted: 28 Dec 2018
Published online: 29 Oct 2020 *

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