A blockchain-based reputation system for bogus message attacks in VANETs

• Claudio Piccolo Fernandes Centro Universitário Estácio de Santa Catarina / UFSC http://orcid.org/0000-0002-3023-1702
• Carlos Montez UFSC http://orcid.org/0000-0001-7767-0692
• Daniel Domingos Adriano UNIVALI http://orcid.org/0000-0002-8683-6890
• Michelle Silva Wangham UNIVALI http://orcid.org/0000-0003-2236-0587

DOI: https://doi.org/10.5753/sbseg.2021.17322

Abstract

One of the main threats to a vehicular network is malicious vehicles that generate false or inappropriate messages. Incoming messages, such as information about accidents, congestion, etc., need to be verified before action is taken. This paper proposes a consortium blockchain-based reputation system using smart contracts to analyze vehicle reliability, identify malicious ones and contribute to decision making. Simulation results show the impact that false messages have on vehicular networks without using a reputation system and the feasibility of using blockchain technology to store reputations.

Keywords: VANETs, blockchain, reputation system

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