EMAP: Expedite Message Authentication Protocol for Vehicular Ad Hoc Networks

2013 ◽  
Vol 12 (1) ◽  
pp. 78-89 ◽  
Author(s):  
Albert Wasef ◽  
Xuemin Shen
Keyword(s):  
Ad Hoc Networks ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Authentication Protocol ◽  
Message Authentication ◽  
Hoc Networks

scholarly journals An efficient cooperative message authentication based on reputation mechanism in vehicular ad hoc networks

2019 ◽  
Vol 15 (6) ◽  
pp. 155014771985491
Author(s):  
Yong Xie ◽  
Songsong Zhang ◽  
Xiang Li ◽  
Yanggui Li
Keyword(s):  
Ad Hoc Networks ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Computational Cost ◽  
Message Authentication ◽  
Selfish Behavior ◽  
Reputation Mechanism ◽  
Single Vehicle ◽  
Detection Ratio ◽  
Hoc Networks

Vehicular ad hoc networks have emerged as a promising approach to increasing road safety and efficiency. Vehicles periodically broadcast traffic-related status messages. Message authentication is a common way for ensuring information reliability, but it is an unaffordable computational cost for single vehicle. In this article, we propose an efficient cooperative message authentication based on reputation mechanism. In the proposed scheme, reputation model is used to assess authentication efforts of vehicles, which enhances initiative for cooperative message authentication and inhabits selfish behavior; sequence optimization algorithm solves messages overflowing on condition limited computation of onboard unit and improves the speed of message authentication at the premise of ensuring the reliability of message authentication. Simulation results show that our scheme presents a nice performance of authentication efficiency, packet loss ratio, and missing detection ratio.

A Hybrid Authentication Protocol with ID-Based Signcryption for Vehicular Ad Hoc Networks

2013 ◽  
Vol 650 ◽  
pp. 465-469
Author(s):  
Jian Zhang
Keyword(s):  
Ad Hoc Networks ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Privacy Preserving ◽  
Authentication Protocol ◽  
Safety Problem ◽  
Traffic Efficiency ◽  
Hoc Networks ◽  
Hybrid Authentication ◽  
Better Than

In order to resolve the message safety problem in vehicular ad hoc networks (VANET) and improve traffic efficiency, a privacy-preserving and scalable scheme was proposed for VANET messages authentication, in which identity (ID)-based signcryption was used to help vehicles to secretly receive a secret member key from an RSU, and then the vehicles can anonymously send messages on behalf of the group. The efficiency of the proposal is at least 33% higher better than other existed scheme.

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