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      PCPA: A Practical Certificateless Conditional Privacy Preserving Authentication Scheme for Vehicular Ad Hoc Networks

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          Abstract

          Vehicle ad hoc networks (VANETs) is a promising network scenario for greatly improving traffic efficiency and safety, in which smart vehicles can communicate with other vehicles or roadside units. For the availability of VANETs, it is very important to deal with the security and privacy problems for VANETs. In this paper, based on certificateless cryptography and elliptic curve cryptography, we present a certificateless signature with message recovery (CLS-MR), which we believe are of independent interest. Then, a practical certificateless conditional privacy preserving authentication (PCPA) scheme is proposed by incorporating the proposed CLS-MR scheme. Furthermore, the security analysis shows that PCPA satisfies all security and privacy requirements. The evaluation results indicate that PCPA achieves low computation and communication costs because there is no need to use the bilinear pairing and map-to-point hash operations. Moreover, extensive simulations show that PCPA is feasible and achieves prominent performances in terms of message delay and message loss ratio, and thus is more suitable for the deployment and adoption of VANETs.

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          Most cited references48

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          Identity-Based Cryptosystems and Signature Schemes

          Adi Shamir (1985)
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            Elliptic curve cryptosystems

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              Use of Elliptic Curves in Cryptography

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                Author and article information

                Journal
                Sensors (Basel)
                Sensors (Basel)
                sensors
                Sensors (Basel, Switzerland)
                MDPI
                1424-8220
                15 May 2018
                May 2018
                : 18
                : 5
                : 1573
                Affiliations
                [1 ]School of Information Engineering, Chang’an University, Xi’an 710064, China
                [2 ]School of Sciences, Xi’an University of Technology, Xi’an 710054, China; xqshen@ 123456xaut.edu.cn
                Author notes
                [* ]Correspondence: yangming@ 123456chd.edu.cn ; Tel.: + 86-136-091-16306
                Author information
                https://orcid.org/0000-0003-1734-8866
                https://orcid.org/0000-0003-1110-2566
                Article
                sensors-18-01573
                10.3390/s18051573
                5982737
                29762511
                23381c47-0194-488b-b097-c127f333719d
                © 2018 by the authors.

                Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license ( http://creativecommons.org/licenses/by/4.0/).

                History
                : 16 April 2018
                : 12 May 2018
                Categories
                Article

                Biomedical engineering
                vehicular ad hoc networks,authentication,conditional privacy preserving,security,certificateless signature

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