Biosensor is a means to transmit some physical phenomena, like body temperature, pulse, respiratory rate, electroencephalogram
(EEG), electrocardiogram (ECG), and blood pressure. Such transmission is performed via Wireless Medical Sensor Network
(WMSN) while diagnosing patients remotely through Internet-of-Medical-)ings (IoMT). )esensitive data transmitted through
WMSN from IoMT over an insecure channel is vulnerable to several threats and needs proper attention to be secured from
adversaries. In contrast to addressing the security of all associated entities involving patient monitoring in the healthcare system or
ensuring the integrity, authorization, and nonrepudiation of information over the communication line, no one can guarantee its
security without a robust authentication protocol. )erefore, we have proposed a lightweight and robust authentication scheme
for the network-enabled healthcare devices (IoMT) that mitigate all the identi6ed weaknesses posed in the recent literature. )e
proposed protocol’s security has been analyzed formally using BAN logic and ProVerif2.02 and informally using pragmatic
illustration. Simultaneously, at the end of the paper, the performance analysis result shows a delicate balance of security with
performance that is often missing in the current protocols.