VANET SECURITY FRAMEWORK FOR LOW LATENCY SAFETY APPLICATIONS

Vehicular Ad hoc Network (VANET) is a communication network for vehicles on the road. The concept of VANET is to create communication between vehicles, such as one vehicle is able to inform another vehicle about the road conditions. Communication is possible by vehicle to vehicle (V2V) and vehicle to road side unit (V2R). Presently, VANET technology is surrounded with security challenges and it is essentially important for VANET to successfully implement a security measure according to the safety applications requirements. Many researchers have proposed a number of solutions to counter security attacks and also to improve certain aspects of security i.e. authentication, privacy, and non-repudiation. The current most suitable security scheme for VANET is an Elliptic Curve Digital Signature Algorithm (ECDSA) asymmetric security mechanism. ECDSA is small in key size but it provides the same level of security as the large key sized scheme. However ECDSA is associated with high computational cost, thus lacking applicability in life-critical safety messaging. Due to that reason, alternative security schemes have been proposed, such as symmetric methods which provide faster communication, but at the expense of reduced security. Hence, hybrid and hardware based solutions have been proposed by researchers to mitigate the issue. However, these solutions still do not satisfy the existing safety applications standard or have larger message size due to increased message drop ratio. In this thesis, a security framework is presented; one that uses both standard asymmetric PKI and symmetric cryptography for faster and secured safety message exchange. The proposed framework is expected to improve the security mechanism in VANET by developing trust relationship among the neighboring nodes, hence forming trusted groups. The trust is established via Trusted Platform Module (TPM) and group communication. In this study, the proposed framework methods are simulated using two propagation models, i.e. two ray ground model and Nakagami model for VANET environment (802.11p). In this simulation, two traffic scenarios such as highway and urban are established. The outcome of both simulation scenarios is analyzed to identify the performance of the proposed methods in terms of latency (End-to-End Delay and Processing Delay). Also, the proposed V2V protocol for a framework is validated using a software in order to establish trust among vehicles

Secure Vehicular Communication Systems: Implementation, Performance, and Research Challenges

Vehicular Communication (VC) systems are on the verge of practical deployment. Nonetheless, their security and privacy protection is one of the problems that have been addressed only recently. In order to show the feasibility of secure VC, certain implementations are required. In [1] we discuss the design of a VC security system that has emerged as a result of the European SeVeCom project. In this second paper, we discuss various issues related to the implementation and deployment aspects of secure VC systems. Moreover, we provide an outlook on open security research issues that will arise as VC systems develop from today's simple prototypes to full-fledged systems

Recent Developments on Security and Privacy of V2V & V2I Communications: A Literature Review

In the recent years Intelligent Transportation Systems and associated technologies have progressed significantly, including services based on wireless communications between vehicles (V2V) and infrastructure (V2I). In order to increase the trustworthiness of these communications, and convince drivers to adopt the new technologies, specific security and privacy requirements need to be addressed, using Vehicular Ad Hoc Networks (VANETs). To maintain VANET′s security and eliminate possible attacks, mechanisms are to be developed. In this paper, previous researches are reviewed aiming to provide information concerning matches between an attack and a solution in a VANET environment

Overview of security issues in Vehicular ad-hoc networks

Vehicular ad-hoc networks (VANETs) are a promising communication scenario. Several new applications are envisioned, which will improve traffic management and safety. Nevertheless, those applications have stringent security requirements, as they affect road traffic safety. Moreover, VANETs face several security threats. As VANETs present some unique features (e.g. high mobility of nodes, geographic extension, etc.) traditional security mechanisms are not always suitable. Because of that, a plethora of research contributions have been presented so far. This chapter aims to describe and analyze the most representative VANET security developments

Unmasking Deception in VANETs: A Decentralized Approach to Verifying Truth in Motion

VANET, which stands for Vehicular Ad Hoc Network, is a wireless network that allows vehicles to communicate with each other and with infrastructure, such as Roadside Units (RSUs), with the aim of enhancing road safety and improving the overall driving experience through real-time exchange of information and data. VANET has various applications, including traffic management, road safety alerts, and navigation. However, the security of VANET can be compromised if a malicious user alters the content of messages transmitted, which can harm both individual vehicles and the overall trust in VANET technology. Ensuring the correctness of messages is crucial for the success of VANET, as fake messages pose a threat to traffic safety, human lives, and the credibility of VANET. This poster presents a novel framework for efficiently identifying vehicles that spread fake messages in VANET. The framework divides messages into two categories, urgent and non-urgent, and handles them using a decentralized priority queue consisting of trusted RSUs. The RSUs register dynamic security keys of the vehicles and broadcast the valid ones in their range for quick message exchange. The simulation results show that the framework is scalable and can efficiently identify vehicles that spread fake messages while providing secure communication and guaranteeing the QoS requirements of safety-related VANET applications.https://digitalcommons.odu.edu/gradposters2023_sciences/1009/thumbnail.jp

A Review of Research on Privacy Protection of Internet of Vehicles Based on Blockchain

Numerous academic and industrial fields, such as healthcare, banking, and supply chain management, are rapidly adopting and relying on blockchain technology. It has also been suggested for application in the internet of vehicles (IoV) ecosystem as a way to improve service availability and reliability. Blockchain offers decentralized, distributed and tamper-proof solutions that bring innovation to data sharing and management, but do not themselves protect privacy and data confidentiality. Therefore, solutions using blockchain technology must take user privacy concerns into account. This article reviews the proposed solutions that use blockchain technology to provide different vehicle services while overcoming the privacy leakage problem which inherently exists in blockchain and vehicle services. We analyze the key features and attributes of prior schemes and identify their contributions to provide a comprehensive and critical overview. In addition, we highlight prospective future research topics and present research problems