Preserving Location Privacy in the Presence of Sybil Attacks in Vehicular Ad Hoc Networks

Authors

  • 1Allam Balaram, P. Chandana, Manda Silparaj

Abstract

Vehicular Ad hoc Networks (VANETs) are more susceptible to a large number of attacks due
to its open medium and anomalous nature. Security is still a major issue in the VANET. Location
privacy of the user should be made a mandatory property for wireless communication. Once the attacker
has the knowledge about location of the node, its activities can be traced out easily. During a long
journey, a vehicular user is supposed to cross several Road Side Units (RSUs) that belong to other
network communities. An attacker compromises an RSU and easily gets the real identity of a genuine
vehicle. It impairs the location privacy of the user. Many of the existing works provide authentication
certificates to the vehicles for providing location privacy. The existing works fail to reflect the location
privacy, when RSU is compromised. This paper proposes a Sybil Attack Resistants Location Privacy
(SARLP) to enhance location privacy of the user. In order to provide the location privacy efficiently, a
good authentication system is introduced in the proposed work. The SARLP employs a Location Privacy
Unit (LPU) to provide good authentication system. The SARLP conceals the real identity of a user and
provides temporary key and trusted certificate to the users. The user provides the trusted certificate,
including consecutive series of random numbers which is received from different RSUs for making V2V
communication. By verifying the trusted certificate at the interference range of a genuine vehicle and an
attacker, the SARLP determines the compromised RSU and thus it provides high location privacy. The
simulation results when compared to the existing works shows that, SARLP reduces the Sybil attack and
provides high location privacy to the users in VANET.

Published

2020-10-17

Issue

Section

Articles