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An efficient CPPA scheme for intelligent transportation networks
یک طرح کارآمد CPPA برای شبکه های حمل و نقل هوشمند-2019 To defend intelligent transportation networks’ security and privacy, existing standards
employ the Public Key Infrastructure (PKI) authentication framework. However, the high
associated PKI computation and communication overheads break ground for utilizing
an alternative candidate, the Identity-based Cryptographic (IBC) authentication. Most of
the underlined calculations of the IBC approaches rely on the elliptic curves’ pairing
operation. Since the pairing function is a complex and computation intensive operation,
several studies have developed pairingless IBC authentications and applied the hardware
security of tamper-proof devices to secure the cryptographic parameters at user-end.
Motivated by this trend, we compose a Pairingless Modified Efficient Conditional Privacy-
Preserving Authentication Scheme (PME-CPPAS). Our scheme omits the utilization of
the complex pairing operation as well as the demand for expensive tamper-proof
devices. When analyzing the performance of the presented design, its effectiveness, in
comparison to the available pairing-based and pairingless approaches, is proved in terms
of computation complexity, communication overhead, and storage overhead. PME-CPPAS
achieves less signing computational cost and comparable verification computational
performance. Keywords: Intelligent transportation/vehicular | networks | Authentication | Conditional privacy | Elliptic curve cryptography | Identity-based signature | Bilinear pairings | Tamper-proof device |
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