A Lightweight User Authentication Scheme for Cloud-IoT Based Healthcare Services

With the ongoing revolution of cloud computing and Internet of Things, remote patient monitoring has become feasible. These networking paradigms are widely used to provide healthcare services and real-time patient monitoring. The sensors that are either wearable or embedded within the body of a patient transmit patient's data to the remote medical centers. The medical professional can access patient's data stored in the cloud anywhere across the globe. As the sensitive data of the patient are sent over insecure cloud-IoT networks, secure user authentication is of utmost importance. An efficient user authentication scheme ensures that only legitimate users can access data and services. This paper proposes a secure and efficient user authentication scheme for remote patient monitoring. The proposed scheme is robust, lightweight and secure against multiple security attacks. Furthermore, the scheme has low computational overhead. A formal verification using AVISPA tool confirms the security of the proposed scheme.