Enabling Trust in Automotive IoT: Lightweight Mutual Authentication Scheme for Electronic Connected Devices in Internet of Things

The emergence of smart and embedded devices and the adaptation of new technologies with the Internet of Things have entirely changed online shopping with a new e-commerce paradigm. However, while the accessibility of IoT services has many advantages, it also creates hazards to customer-related data. Due to pervasive e-commerce services, anyone can intercept and be compromised, creating great security and privacy concerns. To address these security challenges and to provide lightweight authentication for all entities, we introduce a "Lightweight Mutual Authentication (LMA) Scheme for Connected Devices in the IoT". The proposed scheme uses automatic and mutual authentication for all entities, employing a distributed approach within a server-based architecture. It is lightweight because it provides a secure way of using e-services with fewer steps, and it is automotive because the entities automatically authenticate each other. The LMA is formally validated in CTL, and the experimental results show that it decreases computation cost by about 56%, increases throughput by about 33.3%, and communication cost remains the same as the average of the other three schemes. In evaluation, the results demonstrate that the presence of LMA leads to a 20-millisecond increase in delay and a 2% decrease in PDR for 100 devices.