SE-CPPA: A Secure and Efficient Conditional Privacy-Preserving Authentication Scheme in Vehicular Ad-Hoc Networks

Abstract

Communications between nodes in vehicular ad hoc networks (VANETs) are inherently vulnerable to security attacks, which may mean disruption to the system. Therefore, the security and privacy issues in VANETs are entitled to be the most important. To address these issues, the existing Conditional Privacy-Preserving Authentication (CPPA) schemes based on either public key infrastructure, group signature, or identity have been proposed. However, an attacker could impersonate an authenticated node in these schemes for broadcasting fake messages. Besides, none of these schemes have satisfactorily addressed the performance efficiency related to signing and verifying safety traffic-related messages. For resisting impersonation attacks and achieving better performance efficiency, a Secure and Efficient Conditional Privacy-Preserving Authentication (SE-CPPA) scheme is proposed in this paper. The proposed SE-CPPA scheme is based on the cryptographic hash function and bilinear pair cryptography for the signing and verifying of messages. Through security analysis and comparison, the proposed SE-CPPA scheme can accomplish security goals in terms of formal and informal analysis. More precisely, to resist impersonation attacks, the true identity of the vehicle stored in the tamper-proof device (TPD) is frequently updated, having a short period of validity. Since the MapToPoint hash function and a large number of cryptography operations are not employed, simulation results show that the proposed SE-CPPA scheme outperforms the existing schemes in terms of computation and communication costs. Finally, the proposed SE-CPPA scheme reduces the computation costs of signing the message and verifying the message by 99.95% and 35.93%, respectively. Meanwhile, the proposed SE-CPPA scheme reduces the communication costs of the message size by 27.3%.

CM-CPPA: Chaotic Map-Based Conditional Privacy-Preserving Authentication Scheme in 5G-Enabled Vehicular Networks

“…Recently, some authentication schemes have been proposed by [25][26][27][28][29][30] to tackle privacy and security properties for vehicular networks. Furthermore, the ID-based schemes [25][26][27][28][29][30][31] use cryptography operations related to the Bilinear Pair (BP) to verify signatures and sign messages. Nevertheless, the operations of BP are complicated and time-consuming, which creates massive performance overheads with regard to overheads of communication and computation to verify signatures and sign messages.…”

A Secure Pseudonym-Based Conditional Privacy-Preservation Authentication Scheme in Vehicular Ad Hoc Networks

“…In recent years, the Vehicular Ad hoc Network (VANET) has been attracting more and more attention from academia and industry [1,2]. According to a report published in 2015 [3,4], around 1800 fatalities and more than 20,000 injuries were due to road accidents annually in the United Kingdom. Therefore, the VANET, one of the cornerstone technologies of the Intelligent Transport System (ITS), is expected to help reduce traffic accidents [5,6].…”

Chebyshev Polynomial-Based Scheme for Resisting Side-Channel Attacks in 5G-Enabled Vehicular Networks

“…As the next deployment of cellular communication, the 5G networks have regained renewed interest in international academia [1][2][3]. The 5G network has the characteristics of a wide covered area increased by 1000 times, battery life reduced by five times, and high bandwidth improved by 10 Gbps compared to the fourth generation (4G).…”