The International Arab Journal of Information Technology (IAJIT)

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Privacy Preserving Authenticated Key Agreement based on Bilinear Pairing for uHealthcare

With the growth of wireless communication technologies and sensor technologies, ubiquitous Healthcare (uHealthcare) based on Internet of Things (IoT) is becoming a big research focus from various researchers. However, security and privacy issues are top most important focuses to be solved for the success of uHealthcare services. This paper shows that Mahmood et al.’s authentication and prescription safety protocol is prone to denial of service attack and stolen-verifier attack. Furthermore, we propose a privacy preserving authenticated key agreement protocol for IoT based uHealthcare, which is based on hash function, symmetric key cryptosystem and bilinear pairing. The proposed protocol efficiently solves the security and privacy problems in Mahmood et al.’s protocol and also provides computational efficiency compared to the related protocols.


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[21] Zhu Z., “An Efficient Authentication Scheme for Telecare Medicine Information Systems,” Journal of Medical Systems, vol. 36, no. 6, pp. 3833-3838, 2012. Sunghyun Cho received the M.Sc. degree in Cyber Security from Kyungil University, Korea, in 2021. He is a Master’s Degree student at College of Computing, Sungkyunkwan University, Korea from 2021. His research interests include cryptography, authentication technologies, network security, ubiquitous computing security, and security protocol. Hyunsung Kim received the M.Sc. and Ph.D. degrees in computer engineering from Kyungpook National University, Korea, in 1998 and 2002, respectively. He is a Professor at the School of Computer Science, Kyungil University, Korea from 2012. Furthermore, he is currently a visiting professor at the Department of Mathematical Sciences, Chancellor College, University of Malawi, Malawi from 2015. He also was a visiting researcher at Dublin City University in 2009. His research interests include cryptography, VLSI, authentication technologies, network security, ubiquitous computing security, and security protocol.