A privacy-preserving trust management system based on blockchain for vehicular networks
Document Type
Conference Proceeding
Publication Date
1-1-2021
Abstract
Blockchain-based trust management has attracted great attention for vehicular networks due to its decentralized, transparent, and tamper-proof natures. However, the highly dynamic vehicular environment challenges the reliability of trust evaluation as well as the privacy preservation of vehicles against tracking attacks. In this paper, we propose a privacy-preserving trust management system to evaluate the trustworthiness of vehicles by exploiting the recent advanced blockchain techniques. Specifically, we build up a trust evaluation blockchain, where the trustworthiness of an involved vehicle is evaluated by distributed road-side units (RSUs) based on the rating feedback from neighboring vehicles. To enable efficient and privacy-preserving trust evaluation, we deploy the feedback messages aggregation and trust evaluation on two smart contracts, which are executed and verified by distributed RSUs automatically. In particular, identity authentication based on Elliptic Curve Cryptography (ECC) cryptosystem is introduced to prevent privacy leakage of vehicles. Security analysis and performance evaluation reveal that our system is secure and efficient to manage the trust evaluation while guaranteeing privacy-preservation for vehicular networks.
Publication Title
IEEE Wireless Communications and Networking Conference, WCNC
ISBN
9781728195056
Recommended Citation
Wang, D.,
Zhang, L.,
Huang, C.,
&
Shen, X.
(2021).
A privacy-preserving trust management system based on blockchain for vehicular networks.
IEEE Wireless Communications and Networking Conference, WCNC,
2021-March.
http://doi.org/10.1109/WCNC49053.2021.9417492
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/15520