Secure Authentication Scheme for 5G-based V2X Communications

Information and communication technologies applied to means of transport allow the design and development of new applications and bring new solutions for the mobility of people. All these applications are grouped within the field of Intelligent Transport Systems (ITS) and improve user mobility in terms of safety, reliability, capacity, and quality. Vehicle to Everything is a novel technology of ITS which aims to enhance the security and efficiency of road traffic by using wireless communications. Cellular communications networks such as LTE-V2X and 5G NR, integrated into the Vehicle to Everything (V2X) architecture designed to support vehicular communications and deployed on a large scale, appear in particular to be a relevant solution. They could indeed guarantee reliable geographic distribution and acceptable performance (latency, bandwidth, packet loss). In this context, we propose a secure authentication scheme for 5G-based V2X communication. Our solution aims to guarantee a high level of security in different types of vehicular communication (V2V, V2I, V2N) to achieve the security requirements using lightweight cryptographic methods and to support vehicles to receive securely all keys and messages from RSU, other vehicles, or network. To validate our proposal, we utilize the Automated Validation of Internet Security Protocols and Applications (AVISPA) tool to achieve the security goals, also we evaluate the performance according to the operational cost which demonstrates that our model has a less computational cost.