Enhancing IoT security with PUF-based authentication scheme.

Physical unclonable function (PUF) technology has been proposed as a solution to solve the IoT security problem, and research on key generation or device authentication using it is being actively conducted. In this paper, we present a new PUF architecture, resistor-capacitor (RC) PUF, and a scheme for applying device authentication technology based on it to the open connectivity foundation (OCF) IoT platform. We greatly improve security level by using PUF technology in the process of acquiring ownership of IoT devices and device authentication of the OCF cloud server. Finally, we present the implemented prototype. In addition, we give experimental results and performance comparison from a security point of view.