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  • Open Access

    ARTICLE

    A Distributed Anonymous Reputation System for V2X Communication

    Shahidatul Sadiah1,#, Toru Nakanishi2,#,*

    CMC-Computers, Materials & Continua, Vol.87, No.1, 2026, DOI:10.32604/cmc.2025.073774 - 10 February 2026

    Abstract V2X communication enables vehicles to share real-time traffic and road-condition data, but binding messages to persistent identifiers enables location tracking. Furthermore, since forged reports from malicious vehicles can distort trust decisions and threaten road safety, privacy-preserving trust management is essential. Lu et al. previously presented BARS, an anonymous reputation mechanism founded on blockchain technology to establish a privacy-preserving trust architecture for V2X communication. In this system, reputation certificates without a vehicle identifier ensure anonymity, while two authorities jointly manage certificate issuance and reputation updates. However, the centralized certificate updates introduce scalability limitations, and the authorities… More >

  • Open Access

    ARTICLE

    A Reputation-Based AODV Protocol for Blackhole and Malfunction Nodes Detection and Avoidance

    Qussai M. Yaseen1,2,*, Monther Aldwairi2,3, Ahmad Manasrah4,5

    CMC-Computers, Materials & Continua, Vol.80, No.2, pp. 1867-1888, 2024, DOI:10.32604/cmc.2024.051179 - 15 August 2024

    Abstract Enhancing the security of Wireless Sensor Networks (WSNs) improves the usability of their applications. Therefore, finding solutions to various attacks, such as the blackhole attack, is crucial for the success of WSN applications. This paper proposes an enhanced version of the AODV (Ad Hoc On-Demand Distance Vector) protocol capable of detecting blackholes and malfunctioning benign nodes in WSNs, thereby avoiding them when delivering packets. The proposed version employs a network-based reputation system to select the best and most secure path to a destination. To achieve this goal, the proposed version utilizes the Watchdogs/Pathrater mechanisms in… More >

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