An Overview of Security Challenges in Vehicular Ad-Hoc Networks

Abstract

Vehicular Ad hoc Networks (VANET) is emerging as a promising technology of the Intelligent Transportation systems (ITS) due to its potential benefits for travel planning, notifying road hazards, cautioning of emergency scenarios, alleviating congestion, provisioning parking facilities and environmental predicaments. But, the security threats hinder its wide deployment and acceptability by users. This paper gives an overview of the security threats at the various layers of the VANET communication stack and discuss some of the existing solutions, thus concluding why designing a security framework for VANET needs to consider these threats for overcoming security challenges in VANET.

Privacy‐preserving cooperative localization in vehicular edge computing infrastructure

“…However, these approaches are not sufficient for vehicular safety messages. 15,21 To address these issues, a solution is to replace the permanent vehicle identifier with temporary cryptographic identifier. These approaches not only secure location privacy but can also be used for authentication.…”

“…The periodic pseudonym change strategy is not enough since they can be identified and tracked by attacker with a series of eavesdropped messages known as pseudonym linking attack. 21,24 Hence a systematic change in pseudonym for location privacy is required. The strength is measured by various metrics such as anonymity set 25 tracking uncertainty of adversary 26 and entropy.…”

“…However, the edge computing based security for vehicular network is present in the literature. However, these approaches are not sufficient for vehicular safety messages 15,21 …”

“…Hence the vehicles are required to use these pseudonyms efficiently as frequent changes makes them depleted of all the allocated pseudonym. The periodic pseudonym change strategy is not enough since they can be identified and tracked by attacker with a series of eavesdropped messages known as pseudonym linking attack 21,24 . Hence a systematic change in pseudonym for location privacy is required.…”

Preserving Privacy in the Internet of Connected Vehicles

“…The Intelligent Transportation System (ITS) is approaching a level of maturity that gives confidence to many nations around the world to better control and manage the traffic flow across the cities. The ITS has a hierarchical structure with three layers [1], [2]. The bottom layer includes sensors/actuators (IoT devices), such as the mass airflow sensor, the engine speed sensor, oxygen sensor, manifold absolute pressure sensor, and voltage sensor.…”