Power Trust: Energy Auditing Aware Trust-Based System to Detect Security Attacks in IoT

Internet of Things (IoT) has become a part of our daily life; these provide information like sensory data which could help us in driving a vehicle with ease, electricity management in homes, health care, and many more. In all the scenarios, the information is generally in the form of log data used to measure certain parameters to figure out the solutions matching to the applications. As this information is very sensitive, there are chances of capturing the device and tampering the data causing sever performance degradation of the network. The possibility of attacks on these devices is mainly of two types one is of physical attack which could occur due to accidents and intentional damage to the device and the second type of possible attack is cyber-attack like tampering the information, denial-of-service, and compromising the device. In this paper, we propose a Power Trust mechanism to assign trust value for each node of the network based on the energy auditing. This energy auditing is done with reference to CPU cycles, data received, data processed, data sent network performance, and power consumption. Using the energy auditing model, we calculate trust values of every node present in the network dynamically and predict the physical attacks and cyber-attacks. With the method introduced, IoT devices would be better monitored and secured.