Using a Random Secret Pre-Distribution Scheme to Implement Message Authentication in VANETs

Applied Sciences

Alan Dahgwo Yein²  Yu-Hsiu Huang¹  Chih-Hsueh Lin³  Wen-Shyong Hsieh¹  Chung-Nan Lee¹  Zhong-Ting Luo¹ 

[1] Department of Computer Science and Engineering, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; E-Mails:;Department of Information Management, Shu-Te University, Kaohsiung 82445, Taiwan; E-Mail:;Department of Computer and Communication, Shu-Te University, Kaohsiung 82425, Taiwan

关键词: VANET;    RSP;    IBC;    anonymity;    message authentication;    private communication;   

DOI  :  10.3390/app5040973

来源: mdpi

【 摘 要 】

In recent years, the development of the Intelligent Transportation System (ITS) has increased the popularity of vehicular ad hoc networks (VANET). A VANET is designed to enable vehicles to exchange information about traffic or vehicle conditions to help other vehicles avoid traffic accidents or traffic jams. To resist malicious attacks, all vehicles must be anonymous and their routings must be untraceable, but still verifiable. The vehicles must trust each other and communicate confidentially. In a VANET, Road Side Units (RSU) are installed on traffic signs or streetlights to help vehicles maintain anonymity, to authenticate messages, or to support confidentiality. However, the coverage of an RSU is limited and the cost of widespread installation is high. RSU installations are incremental, so messages must be authenticated using dense RSUs or sparse RSUs. In this paper, the concept of random key pre-distribution that is used in Wireless Sensor Networks (WSN) is modified to random secret pre-distribution (RSP), which integrates identity-based cryptography (IBC) to produce a message authentication scheme for VANETs in a sparse RSU environment. In the proposed scheme, vehicles follow a process to determine a common secret, allowing them to authenticate each other and obtain the pairing value as a key for use in message authentication and private communication. Evaluation results show that the proposed scheme outperforms related schemes.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.