Paper Info
Title
Towards the Optimization of a Ticket-based Authentication Scheme for VANETs
Abstract
Vehicular Ad hoc NETworks (VANETs) mainly intend to increase road safety by exchanging safety related messages. In order to provide a secure communication in VANETs, a key requirement is to enable receivers to authenticate received messages while preserving the privacy of the identities of sending vehicles. However, if a misbehavior takes place, involved vehicles should be identified and evicted from the network. To this end, we proposed in a previous work [1] a ticket-based authentication scheme for VANETs preserving privacy, in which vehicles use temporary tickets to communicate with other vehicles in the network while conditionally maintaining their privacy. A vehicle's ticket is formed through two stages: an offline stage and an online stage. Besides, the ticket should be updated whenever its vehicle enters into a new domain (containing few Road Side Units), and modified whenever its validity period expires. In this paper, we propose an optimization of that previously proposed work in order to decrease the cryptographic delay. In fact, the Identity Based Online/Offline Signature (IBOOS) technique and Shamir's trick are introduced, already verified tickets are stored by receiving vehicles for reference later and the signature size is reduced.
Year
DOI
Venue
2018
10.1109/COMNET.2018.8622289
2018 Seventh International Conference on Communications and Networking (ComNet)
Keywords
Field
DocType
VANETs,authentication,privacy,optimization
Authentication,Computer science,Cryptography,Ticket,Computer network,Wireless ad hoc network,Authentication scheme,Secure communication
Conference
ISSN
ISBN
Citations 
2163-663X
978-1-5386-5652-5
0
PageRank 
References 
Authors
0.34
6
4
Name
Order
Citations
PageRank
Ons Chikhaoui100.34
Aida Ben Chehida Douss213.39
Ryma Abassi32410.45
Sihem Guemara El Fatmi44013.24