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Blockchain-Based Collaborative Certificate Revocation Systems Using Clustering
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DOI：10.1109/ACCESS.2022.3160171.png)
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Abstract
En 中文
Despite the decisive contribution of intelligent transport systems in road safety, they also open new vulnerabilities to cyber-attacks, particularly vehicle position-linked attacks. For that reason, centralized systems are becoming increasingly vulnerable to the growth of the connected-vehicle fleets as it becomes more challenging to revoke certificates in real-time. We have proposed a new method that integrates a decentralized, collaborative system to meet these challenges. This method efficiently allows Blockchain integration for vehicular network's cyber security by dynamically creating communities to revoke malicious vehicles in real-time. This article presents analytical models of the system of real-time revoking certificates and examines our solution's impact on two important types of attacks in V2X communications, Sybil and the faking position attacks. Our experiments using real V2X hardware demonstrated the feasibility and benefits of real-time revocation via vehicle communities. The results were obtained from consensus implementation in a vehicular network comprising three communicating vehicles and a single roadside unit. In parallel, simulations showed feasibility in large-scale communications. As a result, the exposure and detection times of our solution meet real-time requirements.
Keywords:
Vehicle-to-everything
Blockchains
Real-time systems
Protocols
Privacy
Peer-to-peer computing
Collaboration
Intelligent transport systems
blockchain consensus
certificate revocation
dynamic clustering
Journal
IF:
3.6
Papers:
9.8W
Citations:
29.4W
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Cited Papers
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