Abstract

With the development of intelligent transportation, vehicular edge computing (VEC) has enhanced the automaticity, efficiency, and coordination of the traffic system. Due to communication channel openness and traffic entity unreliability, identity authentication for privacy preservation, and trust management based on VEC become increasingly important in vehicular networks. However, existing authentication schemes mainly focus on the communication between an edge node and multiple vehicles, which may depend on the single edge computing node excessively and render it vulnerable. In this paper, we designed a blockchain-enabled authentication scheme for vehicles with decentralized identification based on traceable driving route data and the dynamic proxy mechanism. In the dynamic proxy edge computing (DPEC) mode, cooperative authentication based on secret sharing along with data tracking and trust management based blockchain is designed to enhance privacy preservation. Typical attacks are considered in this scheme to perform security analysis, and our proposed scheme is able to achieve cooperative privacy preservation for vehicles in VEC with low communication overhead and computation cost.

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