Reputation model for VANETs with privacy-preserving under blockchain architecture

被引：0

作者：

Wang C.-H. ^{[1
]}

Zhang Q. ^{[1
]}

Wang H.-M. ^{[3
]}

Xu X. ^{[1
]}

Ma O.-B. ^{[2
]}

机构：

[1] Computer and Software School, Hangzhou Dianzi University, Hangzhou

[2] College of Computer Science and Technology, Zhejiang University, Hangzhou

[3] School of Information Science and Technology, Hangzhou Normal University, Hangzhou

来源：

Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science) | 2023年 / 57卷 / 04期

关键词：

blockchain; privacy-preserving; reputation model; vehicular Ad-hoc networks (VANETs);

D O I：

10.3785/j.issn.1008-973X.2023.04.014

中图分类号：

学科分类号：

摘要：

A reputation model for VANETs with privacy-preserving under the blockchain architecture was proposed aiming at the problems of the traditional reputation mechanism in vehicular Ad-hoc networks (VANETs), such as the untrustworthy centralized reputation server, the threat to users’ privacy and the single detection scope. A distributed and trusted reputation update model for VANETs was designed based on blockchain technology. The multi-key fully homomorphic encryption algorithm was used to realize the encryption and calculation of evaluation data and reduce the risk of user privacy leakage. An adaptive adjustment strategy for the backtracking time interval was designed to prevent malicious vehicles from bypassing detection based on the update characteristics of reputation. Simulation results show that the scheme can effectively protect user privacy, and can maintain a high detection rate and a low false positive rate for malicious vehicles in different environments. The detection rate of vehicle malicious behavior in this scheme was increased by 32% compared with the traditional scheme. © 2023 Zhejiang University. All rights reserved.

引用

页码：760 / 772

页数：12

共 38 条

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