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Updated: Jan 3, 2026

Integration of 5G Experimentation Infrastructures into a Multi-Site NFV Ecosystem
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Secure Trust-Based Blockchain Architecture to Prevent Attacks in VANET.

Adnan Shahid Khan1, Kuhanraj Balan1, Yasir Javed1,2

  • 1Faculty of Computer Science and Information Technology, Universiti Malaysia Sarawak, Kota Samarahan 94300, Malaysia.

Sensors (Basel, Switzerland)
|November 20, 2019
PubMed
Summary
This summary is machine-generated.

This study introduces a novel blockchain-based security architecture to protect vehicular ad hoc networks (VANET) from MAC layer attacks. The proposed system enhances network security and privacy for intelligent transportation systems.

Keywords:
VANETarchitectureauthenticationblockchainprivacysecuritytrust model

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Area of Science:

  • Computer Science
  • Network Security
  • Cybersecurity

Background:

  • Vehicular ad hoc networks (VANET), also known as intelligent transportation systems, facilitate vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communications.
  • VANETs are susceptible to medium access control (MAC) layer attacks due to their open wireless nature and high mobility, posing risks to road safety and traffic efficiency.
  • Attacks like Denial of Service (DoS), data modification, impersonation, Sybil, and replay attacks compromise network security and privacy.

Purpose of the Study:

  • To propose a novel secure trust-based architecture utilizing blockchain technology to enhance VANET security and privacy.
  • To mitigate various MAC layer threats within VANET environments.
  • To improve the overall reliability and safety of intelligent transportation systems.

Main Methods:

  • A secure trust-based architecture leveraging blockchain technology was designed.
  • Experiments were conducted using the Veins simulation tool to evaluate the proposed solution.
  • Performance metrics including packet delivery ratio (PDR), end-to-end delay, packet loss, transmission overhead, and computational cost were assessed.

Main Results:

  • The proposed blockchain-based architecture demonstrated effectiveness in mitigating MAC layer attacks.
  • Performance evaluation indicated improvements in network security and privacy.
  • Key performance indicators such as PDR and end-to-end delay were analyzed under simulated attack scenarios.

Conclusions:

  • The novel secure trust-based architecture effectively enhances VANET security and privacy against MAC layer attacks.
  • Blockchain technology offers a viable solution for securing intelligent transportation systems.
  • The proposed approach contributes to safer and more efficient traffic flow in VANETs.