Efficient Certificate-Less Aggregate Signature Scheme with Conditional Privacy-Preservation for Vehicular Ad Hoc Networks Enhanced Smart Grid System

Abstract

Vehicular Ad hoc networks (VANETs) as spontaneous wireless communication technology of vehicles has a wide range of applications like road safety, navigation and other electric car technologies, however its practicability is greatly hampered by cyber-attacks. Due to message broadcasting in an open environment during communication, VANETs are inherently vulnerable to security and privacy attacks. However to address the cyber-security issues with optimal computation overhead is a matter of current security research challenge. So this paper designs a secure and efficient certificate-less aggregate scheme (ECLAS) for VANETs applicable in a smart grid scenario. The proposed scheme is based on elliptic curve cryptography to provide conditional privacy-preservation by incorporating usage of time validated pseudo-identification for communicating vehicles besides sorting out the KGC (Key Generation Center) escrow problem. The proposed scheme is comparatively more efficient to relevant related research work because it precludes expensive computation operations likes bilinear pairings as shown by the performance evaluation. Similarly, communication cost is within the ideal range to most related works while considering the security requirements of VANETs system applicable in a smart grid environment.

A 3C Authentication: A Cross-Domain, Certificateless, and Consortium-Blockchain-Based Authentication Method for Vehicle-to-Grid Networks in a Smart Grid

“…We mainly focus on the computational overhead of the process of signature verification, while the operations that are very light like the addition operation in Z * q and the multiplication operation in Z * q will not be considered. By using the computation execution times for various dominant time-consuming cryptographic operations summarized in Table 2, we carry out an efficiency analysis of our proposed scheme compared with two related works: one [35] is based on the bilinear pairing operation, and the other [36] is a certificateless scheme based on ECC. We conduct the computation analysis in terms of the three phases of the signature, individual verification, and aggregate verification.…”

“…In a similar manner, the computation costs for the other two related schemes can be calculated. In [35], four scalar multiplication operations, two point addition operations, two map-to-point hash function operations in the bilinear pairing operation, and one hash function operation (4T [36], the overall load is (0.442 + 1.330) ms = 1.772 ms. Subsequently, our scheme has an overall computation load of (0.442 + 0.885) ms = 1.327 ms, which is better than other schemes as shown in Figure 4.…”

“…However, our proposed scheme precludes complex cryptographic operations like bilinear pairings and map-to-point hash operations by implementing ECC-based algorithms instead, and reduces redundant computational overhead through aggregated signature verification. Compared to Baseline 2 (Vallent et al [36]), although we both utilize ECC-based methods and have a similarly low computation overhead in the process of the signature, the individual verification cost of our scheme is lower than theirs. That is because we improve the authentication procedures in our carefully designed scheme, therefore reducing one scalar multiplication operation, T e.m ; two point addition operations, T e.a ; as well as one hash function operation, T h , of ECC in the process of individual verification.…”

VBlock: A Blockchain-Based Tamper-Proofing Data Protection Model for Internet of Vehicle Networks

“…Vallent et al [ 15 ] proposed a certificateless signature scheme based on elliptic curve cryptography that preserves privacy in VANET. Their scheme sorts out the KGC escrow problem and uses time and pseudo-identity to validate communicating vehicles while excluding bilinear pairings.…”

A Review on Authentication and Privacy Protection Schemes in Vehicular Ad Hoc Networks (Vanets)

“…Source authentication and message integrity of traffic-related data are critical security requirement in VANET. By easily safeguarding moving cars, RSUs, Application Servers, and roadside sensors, compliance with these security criteria ensures the confidence and proper performance of all flexible technologies that come with a VANET system (Vallent et al, 2021). A lot of progress has been made towards VANET, but security challenges still require more research attention (Afzal and Kumar, 2020).…”