ROBUST KEY MANAGEMENT AND SECURE DATA TRANSFER SCHEME FOR VANET

Abstract

Vehicular ad hoc network (VANET) networks play a vital role in vehicles control systems. VANET is commonly
used network among the vehicles in a centralized way. The intricate web weaved within this network enables
seamless communication with the vehicles it encompasses, yet unveils vulnerability to the lurking threats of cyber
intrusions. Consequently, effective solutions are required to secure vehicles infrastructure as cyber-attacks on
VANET systems can have severe financial and/or safety implications. In addition, the field devices in VANET
possess microcontrollers dedicated to information processing, constrained by limited computational power and
resources, posing challenges in implementing advanced security measures. Within the realm of this scholarly work,
we present a pioneering stratagem encompassing a multi-tiered framework, ingeniously amalgamating symmetric
and asymmetric key cryptographic methods. This innovative approach guarantees unparalleled attributes such as
steadfast availability, unwavering integrity, impervious confidentiality, infallible authentication, and remarkable
scalability. Additionally, we introduce an optimally streamlined session key management mechanism, skillfully
blending the realms of random number generation with the efficacy of a hashed message authentication code.
Furthermore, within the context of each session, we have innovatively incorporated three distinctive techniques of
symmetric key cryptography, drawing inspiration from the timeless principles of the Vernam cipher. These
techniques harmoniously coexist with a pre-shared session key, giving rise to an amalgamation of unparalleled
security measures. One such technique involves the ingenious utilization of a random prime number generator,
further enhancing the robustness of our cryptographic framework, prime counter, and hash chaining. The proposed
scheme satisfies the Vehicular ad hoc network (VANET) has been considered as one of the most prominent
technologies for improving the efficiency and safety of modern transportation systems. Nevertheless, the realm of
VANET unravels a distinctive tapestry woven with a myriad of challenges and prospects that lie in wait for the
domain of security. In particular, key management, requirements of real-time request response mechanism by
supporting broadcast, multicast, and point to point communication.