Efficient Lightweight Blockchain-based Authentication and Intrusion Detection System for Secure Message Transfer in VANETs

Abstract

Securing the transfer of messages is a challenging task for communication between vehicles in Vehicular Ad-Hoc Networks (VANETs). The effectiveness of vehicle-to-vehicle communication is of top priority in VANETs, where the lives and possessions of drivers are at stake. The ultimate objective of a vehicle network is to ensure fast and proper broadcasting of information concerning life-threatening incidents, such as traffic jams and accident reports. However, these messages are prone to attacks by misleading intruders attempting to modify or alter them during communication. Emergency communications are basically segregated on the basis of the message schema and safety level, primarily due to the lack of quick and reliable communication and the need to detect attacks. This paper proposes an efficient lightweight blockchain-based authentication system for the secure transfer of emergency messages in Vehicular Ad-Hoc Networks (VANETs). The main objectives are to develop an intrusion detection system for V2V communication using machine learning techniques and to use a lightweight Rivest-Shamir-Adleman(RSA) technique with three prime integers to ensure authentication. Additionally, Ganache and Ethereum blockchain technologies are utilized to create a secure message storage and retrieval system. The proposed system demonstrates improved encryption and decryption times and enhanced attack detection accuracy.