Physically Secure PUF-Based Reputation Management Protocol for VANETs

Résumé fourni par la source

The reputation management mechanism in VANETs can effectively curb the spread of false information, promote vehicle collaboration, and thereby enhance system stability and trustworthiness. However, existing reputation management mechanisms still lack effective safeguards against hardware intrusion and device cloning, resulting in inadequate physical security protection. To address these challenges, this paper proposes a Physically Unclonable Function (PUF)-based reputation management protocol for vehicular networks. By leveraging the hardware-level uniqueness of PUFs and integrating it with the ElGamal cryptosystem, the proposed scheme achieves mutual authentication between vehicles and RSUs, guarantees message integrity, and enables dynamic reputation updates. This integration effectively strengthens both logical and physical security within VANET environments.

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