Efficient and Spontaneous Privacy-Preserving Protocol for Secure Vehicular Communication

Abstract

This paper introduces an efficient and spontaneous privacy-preserving protocol for vehicular ad-hoc networks based on revocable ring signature. The proposed protocol has three appealing characteristics: First, it offers conditional privacypreservation: while a receiver can verify that a message issuer is an authorized participant in the system only a trusted authority can reveal the true identity of a message sender. Second, it is spontaneous: safety messages can be authenticated locally, without support from the roadside units or contacting other vehicles. Third, it is efficient by offering fast message authentication and verification, cost-effective identity tracking in case of a dispute, and low storage requirements. We use extensive analysis to demonstrate the merits of the proposed protocol and to contrast it with previously proposed solutions.1 A safety message reports on the state of the sender vehicle, e.g., its location, speed, heading, etc.2 At the moment, there are in the order of some hundreds of millions of cars registered world wide

DIFO: Discovering faulty OBUs in VANETs

“…This issue is not explored and represents an important obstacle to the success of this scheme. To address the scalability concern, Xiong et al [12] proposed a spontaneous protocol based on the revocable ring signature [15], which allows the vehicle to generate the message without requiring online assistance from the RSUs or the other vehicles. In this solution, the remaining vehicles are not required to update their system parameters regardless of the number of revoked vehicles.…”

A taxonomy of ring signature schemes: Theory and applications

“…In Liu et al's scheme, the real signer will be responsible for what has been signed, as the anonymity is revocable by authorities. Xiong et al, have presented an efficient and conditional privacy-preserving auction protocol [67] and a privacy-preserving protocol for secure vehicular communication [68] based on [66], respectively. In deniable ring signature [69,70], a signer can form a ring to sign a message anonymously while a signer can confirm the fact of signing through a confirmation protocol and a non-signer can refute the claim of signing through a disavowal protocol.…”

Privacy-preserving Communication for Vehicular with Multi Receiver Conditionally Anonymous Ring Signcryption

“…Compared with previous schemes, the proposed scheme increases the computational amount and increases the probability of an attacker's success. A spontaneous protocol based on the revocation of the ring signature [8] is 3rd International Conference on Materials Engineering, Manufacturing Technology and Control (ICMEMTC 2016) proposed by literature [7], which allows the vehicle to generate messages without the help of RSU and other vehicles. In the proposed scheme, the number of vehicles in the signature of the ring is not required to update their system parameters.…”