Title
Performance Analysis of an OCSP-Based Authentication Protocol for VANETs
Abstract
Vehicular Ad-Hoc NETworks VANETs improve road safety by preventing and reducing traffic accidents, but VANETs also raise important security and privacy issues. A common approach widely adopted in VANETs is the use of Public Key Infrastructures PKI and digital certificates in order to enable authentication and confidentiality, usually relying on a large set of regional Certification Authorities CAs. Despite the advantages of the latter approach, it raises new problems related with the secure interoperability among the different -and usually unknown-issuing CAs. This paper addresses authentication and interoperability issues in vehicular communications, considering an interregional scenario where mutual authentication between all the nodes is needed. The use of an Authentication Service AS is proposed, which supplies vehicles with a trusted set of authentication credentials by implementing a near real-time certificate status service via the well-known Online Certificate Status Protocol OCSP. The proposed AS also implements a mechanism to quantitatively evaluate the trust level of a CA, in order to decide on-the-fly if an interoperability relationship can be created. The feasibility and performance of the proposed mechanisms are demonstrated via simulations and quantitative analyses by providing a set of communication measurements considering an urban scenario.
Year
DOI
Venue
2012
10.4018/jaras.2012010102
IJARAS
Keywords
DocType
Volume
authentication credential,large set,OCSP-Based Authentication Protocol,paper addresses authentication,mutual authentication,interregional scenario,secure interoperability,proposed mechanism,Performance Analysis,common approach,interoperability relationship,interoperability issue
Journal
3
Issue
Citations 
PageRank 
1
2
0.39
References 
Authors
16
6
Name
Order
Citations
PageRank
Jetzabel Serna-Olvera191.96
Valentina Casola240247.27
Massimiliano Rak382077.71
Jesus Luna414316.72
Manel Medina5488.07
Nicola Mazzocca667478.37