Safe Distance Based Location Privacy in Vehicular Networks

Abstract

To enhance driving safety in vehicle ad-hoc networks (VANETs), vehicles periodically broadcast safety messages with information of their precise positions to others. These broadcast messages, however, make it easy to track vehicles and will likely lead to violations of personal privacy. Unfortunately, most of the current location privacy enhancement methodologies in VANETs suffer some shortcomings and do not take driving safety into consideration. In this paper, we propose a safe distance based location privacy scheme called SafeAnon, which can significantly enhance location privacy as well as traffic safety.

Lightweight Cryptographic Techniques for Automotive Cybersecurity

“…The fundamental concept of privacy preservation schemes in VANET is to periodically change the pseudonyms. There exists many schemes that have been proposed by researchers in which the concept of changing pseudonym is used to preserve the privacy of user [28][29][30][31][32][33][34][35][36]. Data owners often suppress their data for an untrusted trainer to train a classifier due to privacy concerns.…”

A Simple Authentication Scheme and Access Control Protocol for VANETs

“…In order to assure the validity and privacy of an SRL and prevent privilege elevation attacks, an attachable blind signature is used by PPACP. Recently, Wu et al proposed a cryptanalysis of an attachable blind signature and demonstrate that the PAACP's Authorized Credential (AC) is not secure and private even if the AC is secretly stored in a tamper-proof device [10]. Their analysis showed that in PAACP, an eavesdropper can construct the AC from an intercepted blind document.…”

“…Among various security threats, privacy preservation in VANETs is one of the new challenges of protecting users' private information. For instance, Chen and Wei [2,10] proposed a safe, distance-based location privacy scheme called SafeAnon. By simulating vehicular mobility in a cropped Manhattan map, they evaluated the performance of the SafeAnon scheme under various conditions to show that it could simultaneously achieve location privacy as well as traffic safety.…”

“…However, in the authorization phase, a PAACP is breakable and cannot maintain privacy in VANETs. Recently, Wu et al presented a cryptanalysis of an attachable blind signature and demonstrate that the PAACP's Authorized Credential (AC) is not secure and private even if the AC in secretly stored in a tamper-proof device [10]. This is because an eavesdropper is able to construct an AC from an intercepted blind document.…”

Improving the Authentication Scheme and Access Control Protocol for VANETs

“…Among various security threats, privacy preservation in VANETs is one of the new challenges of protecting users' private information. For instance, Chen and Wei proposed a safe, distance-based location privacy scheme called SafeAnon [5,6]. By simulating vehicular mobility in a cropped Manhattan map, they evaluated the performance of the SafeAnon scheme under various conditions to show that it could simultaneously achieve location privacy, as well as traffic safety.…”