eckci: an ecc-based authenticated key agreement scheme resistant to key compromise impersonation attack for tmis

Internet of things (iot) is an innovation in the world of technology. continuous technological advancements based on the iot cloud and booming wireless technology have revolutionized the living of human and remote health monitoring of patients is no exclusion. the telecare medicine information systems (tmis) is a system between home health care (hhc) organizations and patients at home that collects, saves, manage and transmits the electronic medical record (emr) of patients. therefore, security in remote medicine has always been a very big and serious challenge. therefore, biometrics-based schemes play a crucial role in iot, wireless sensor networks (wsn), etc. recently, xiong textit{et al.} and mehmood textit{et al.} presented key exchange methods for healthcare applications that they claimed these schemes provide greater privacy. but unfortunately, we show that these schemes suffer from privacy issues and key compromise impersonation attack. to remove such restrictions, in this paper, a novel scheme (eckci) using elliptic curve cryptography (ecc) with kci resistance property was proposed. furthermore, we demonstrate that the eckci not only overcomes problems such as key compromise impersonation attack in previous protocols, but also resists all specific attacks. finally, a suitable equilibrium between the performance and security of eckci in comparisons with these recently proposed protocols was obtained. also, the simulation results with the scyther and proverif tools show that the eckci is safe in terms of security.