Multi-factor Assymetric Key Encryption (MAKE) for Mutual Authentication in IoMT

Digital health, smart hospitals, and other uses of the Internet of Things (IoT) generate enormous amounts of heterogeneous data. Sensor nodes of IOT are incorporated with medical apparatus so that medical staff may continuously check patients' health and appliances. However, due to security flaws, an unauthorized person might access patient health data or manage the IoT nodes linked to their bodies, leading to results that were previously unheard of. Because wireless channels are used as a communication medium, IoT presents a number of risks to the security and privacy of IoT networks. We proposed a multifactor-oriented protocol which provides mutual authentication for transmission of data between patient and doctor by maintaining secrecy among smart card, sensor node, server, gateway and IoMT devices. We use the concept of assymetric key, XOR operation and the fuzzy extractor for better and more secure encryption. We proved the protocol formally by BAN logic and informally and then finally calculated the computational cost.