Blockchain Empowered Secure Authentication for Vanet’s: A Key Extraction Approach

A blockchain-based trust management model has been developed for preserving location privacy in Vehicular Impromptu Networks (VANETs), a crucial component of Intelligent Traffic Systems (ITS). VANETs offer high mobility, but security concerns have remained unresolved, especially when leveraging Location-Based Services (LBS). Thanks to this technology, cars can request LBS with authentication while keeping their personal data secret. Anonymous shrouding zones are created to protect vehicle privacy, blockchain technology is employed to improve data security, and a trust management algorithm is implemented to control vehicle behavior. Through extensive testing, the system's resilience to various trust model attacks has been demonstrated, effectively safeguarding vehicle privacy. Simulation results further confirm the viability and effectiveness of the proposed system in real-world scenarios.