Secure mutual authentication with privacy preservation in vehicular ad hoc networks

摘要

Vehicular ad hoc networks (VANETs) plays an important role in smart transportation to reduce the driver's risk of having an accident and offer many entertainment facilities services. However, since the nature of open communication for VANETs, the messages broadcasted by vehicle are easily suffer from security attacks. Recently, many schemes have been proposed to address the aforesaid problems for VANETs, however most of them have huge computational and communication overhead. In this paper, we propose a secure mutual authentication scheme with privacy preservation to address the aforesaid challenges existing in VANETs. Firstly, before the vehicle broadcasts messages to other vehicles, it needs to execute mutual authentication process between TA and the vehicle to ensure that any attacker could not enter the range of communication to broadcast fake message causes damage. Secondly, before the attacker acquires the information (such as internal pseudo-identity and encryption key) stored in the tamper proof device via the side-channel attack, these information have been updated, so the side-channel attack could be resisted. Finally, because the bilinear pairing is not used in our scheme, the system cost is lower than other schemes during the performance evaluation. Therefore, our scheme is more suitable for the large scale VANETs. (C) 2019 Elsevier Inc. All rights reserved.