Distributed Fine-Grained Secure Control of Smart Actuators in Internet of Things

Internet of Things is a new emerging technology that promises a new era of Internet through encompassing seamlessly physical and digital worlds in one single intelligent ecosystem. This goal is achieved by interconnecting a large number of smart objects from the physical word such as smartphones, sensors, robots, connected cars, etc., to Internet. Nowadays, with the advent of Internet of Things, we need efficient mechanisms to remotely control IoT smart actuators by users and controllers using smartphones and IoT devices. This arises particularly in industrial Cyber-Physical Systems to supervise industrial processes. However, the complex environment of IoT systems makes this task very difficult to achieve regarding the number of connected objects and their resource limitation. In this paper, we tackle the problem of remote secure control of IoT actuators. We propose a distributed lightweight fine-grained access control based on Attribute Based Encryption mechanism and one way hash chain. We conducted security analysis and formal verification using AVISPA. The results demonstrated that our scheme is secure against various attacks. Moreover, the simulation results demonstrated the scalability and the efficiency of our solution, which saves substantially energy consumption and computation costs.