Privacy-Preserving and Simultaneous Authentication in High-Density V2X Networks

TL;DR

This paper introduces a privacy-preserving, scalable authentication scheme for high-density V2X networks that enables simultaneous multi-user authentication with low latency, enhancing security and efficiency in dynamic IoV environments.

Contribution

The paper proposes a novel authentication scheme that supports batch and mutual authentication without a central authority, improving scalability and security in high-density V2X networks.

Findings

Achieves average authentication time of 10.61 ms for 100 vehicles

Supports up to 500 vehicles with low authentication latency

Outperforms existing authentication methods in speed and scalability

Abstract

The rapid expansion of Vehicle-to-Everything (V2X) networks within the Internet of Vehicles (IoV) demands secure and efficient authentication to support high-speed, high-density and mobility-challenged environments. This paper presents a privacy-preserving authentication scheme that incorporates batch authentication, mutual authentication, and secure key establishment, enabling users to authenticate one another without a central authority. Our proposed scheme facilitates simultaneous multi-user authentication, significantly enhancing scalability, robustness and security in dynamic IoV networks. Results from realistic implementations show that our method achieves average authentication and verification times of 10.61 ms and 1.78 ms, respectively, for a fleet of 100 vehicles, outperforming existing methods. Scalability tests demonstrate efficient processing for larger groups of up to 500 vehicles, where average authentication times remain low, establishing our scheme as a robust solution for secure communication in IoV systems.