Paper Contents
Abstract
Vehicular Ad Hoc Networks (VANETs) have significantly transformed modern transportation systems, especially in technologically advanced nations, and play a vital role in the development of Intelligent Transportation Systems (ITS). This paper presents a comprehensive survey of existing research on VANET communication and security, highlighting the key parameters explored in prior studies. The review identifies authentication and message forwarding as two critical areas requiring further investigation. Authentication serves as the first line of defense in VANETs, preventing malicious nodes from launching attacks. Earlier studies have proposed various authentication mechanisms, including cryptographic, trust-based, identity-based, and group-signature-based schemes. However, achieving high authentication speed while preserving user privacy remains a major challenge. To address these issues, this paper introduces two enhanced authentication schemes: Adaptive Elliptic Curve Cryptography (AECC) and Enhanced Elliptic Curve Cryptography (EECC). AECC employs an adaptive key-size strategy, generating small, medium, or large keys during the key generation phase to balance security and efficiency. EECC incorporates an additional parameter during communication between vehicles and Roadside Units (RSUs) to facilitate faster and more secure key generation. This parameter conveys vehicle identity and location information to both the RSU and neighboring vehicles.Furthermore, under the communication domain of VANETs, this paper proposes a priority-based message forwarding approach aimed at improving the reliability and responsiveness of message dissemination, particularly during emergency scenarios. The proposed method enhances the systems ability to handle critical situations more effectively.
Copyright
Copyright © 2025 AJIT KUMAR. This is an open access article distributed under the Creative Commons Attribution License.
