Security Analysis and Improvement of Authenticated Key Agreement Protocol for Remote Patient Monitoring IoMT

The Internet of Medical Things (IoMT) is a network of medical devices, hardware infrastructure, and software that accumulates real-time data through remote monitoring and minimizes doctor-patient interaction, enhancing the quality of remedies. However, the facile availability and accessibility of data over the web have given rise to serious information security and credibility issues in the IoMT. Recently, Chen et al. [1] proposed a provably secure authenticated key agreement protocol for remote patient monitoring in IoMT. However, after revisiting their scheme, we found security flaws such as user impersonation, ephemeral secret leakage attacks, denial-of-service attacks, and session key disclosure attacks. Therefore, this paper presents cryptanalysis as well as an improvement of Chen et al. 's scheme that strives to furnish protocols with robust security in opposition to the mentioned attacks. The security and effectiveness are displayed through informal analysis and evaluation with other existing state-of-the-art metrics like computational and commu-nication cost. At last, the findings project the superiority of the proposed improved scheme.