RT info:eu-repo/semantics/article
T1 Providing k-anonymity and revocation in ubiquitous VANETs
A1 Molina Gil, Jezabel Miriam
A1 Hernández Serrano, Juan
A1 León, Olga
A1 Soriano Ibáñez, Miguel
A1 Caballero Gil, Cándido
K1 Ubiquitous VANET Revocationk- K-anonymity Privacy Security
AB Vehicular ad hoc networks (VANETs) is considered a milestone in improving the safety and efficiency in transportation. Nevertheless, when information from the vehicular communica- tions is combined with data from the cloud, it also introduces some privacy risks by making it easier to track the physical location of vehicles. For this reason, to guarantee the proper performance of a VANET it is essential to protect the service against malicious users aim- ing at disrupting the proper operation of the network. Current researches usually define a traditional identity-based authentication for nodes, which are loaded with individual creden- tials. However, the use of these credentials in VANETs without any security mechanism en- ables vehicle tracking and therefore, violate users’ privacy, a risk that may be overcome by means of appropriate anonymity schemes. This comes at the cost, however, of on the one hand preventing VANET centralized authorities from identifying malicious users and revok- ing them from the network, or on the other hand to avoid complete anonymity of nodes in front of the CA thus to allow their revocation. In this paper, a novel revocation scheme that is able to track and revoke specific malicious users only after a number of complaints have been received while otherwise guaranteeing node’s k -anonymity is described. The proper performance of these mechanisms has been widely evaluated with NS-2 simulator and an analytical model validated with scripts. The results show that presented work is a promis- ing approach in order to increase privacy protection while allowing revocation with little extra costs.
YR 2016
FD 2016
LK http://riull.ull.es/xmlui/handle/915/35513
UL http://riull.ull.es/xmlui/handle/915/35513
LA en
DS Repositorio institucional de la Universidad de La Laguna
RD 11-may-2024