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A blockchain-enabled trust-aware authentication framework for secure communication in VANETs.

S Sajini1, V Jananee2, E A Mary Anita3

  • 1Department of Computer Science and Engineering with Specialization in Artificial Intelligence and Machine Learning, SRM Institute of Science and Technology, Ramapuram Campus, Chennai, India. sajinisham13@gmail.com.

Scientific Reports
|June 20, 2026
PubMed
Summary
This summary is machine-generated.

This study introduces a novel blockchain framework for secure Vehicular Ad Hoc Networks (VANETs). It enhances authentication accuracy and packet delivery, offering robust protection against cyberattacks in intelligent transportation systems.

Keywords:
Blockchain-based authenticationCluster-based secure communicationDeep learning-based trust evaluationIntelligent transportation systemsLightweight cryptographyTrust-aware securityVehicular Ad Hoc Networks

Related Experiment Videos

Area of Science:

  • Computer Science
  • Cybersecurity
  • Network Engineering

Background:

  • Vehicular Ad Hoc Networks (VANETs) are critical for intelligent transportation systems but face security vulnerabilities like impersonation and message modification due to their dynamic nature.
  • Current authentication methods in VANETs often rely on centralized systems and traditional cryptography, proving inadequate for dynamic trust evaluation and secure handovers.

Purpose of the Study:

  • To propose a novel blockchain-enabled framework for trust-aware authentication in VANETs.
  • To enhance the security, reliability, and efficiency of VANET communications against various cyber threats.

Main Methods:

  • Integration of a Joint Probability and Error Unit-based Deep Learning Neural Network (JPEU-DLNN) for dynamic trust assessment.
  • Utilization of Log-based Edwards Curve Cryptography (LECC) for efficient key generation.
  • Implementation of Gini Indexed Farthest First Clustering (GIFFC) for stable cluster formation and Directional Gannet Optimization Algorithm (DGOA) for optimal routing.
  • Leveraging blockchain for decentralized and immutable storage of credentials.

Main Results:

  • Achieved 95.62% authentication accuracy and 96.94% packet delivery ratio.
  • Demonstrated significant reductions in end-to-end delay and improvements in network lifetime.
  • Validated strong resistance against both active and passive security attacks through rigorous evaluation.

Conclusions:

  • The proposed blockchain-enabled framework effectively addresses the security challenges in VANETs.
  • The framework offers a practical and secure solution for intelligent transportation systems, enhancing communication integrity and network performance.
  • The results highlight the potential for widespread adoption in secure and reliable VANET deployments.