In vehicular ad hoc networks (VANETs), when a vehicle receives a message, the certificate revocation list (CRL) checking process will operate before certificate and signature verification. However, large communication sources, storage space, and checking time are needed for CRLs that cause the privacy disclosure issue as well. To address these issues, in this paper, we propose an efficient anonymous batch authentication scheme (ABAH) to replace the CRL checking process by calculating the hash message authentication code (HMAC). In our scheme, we first divide the precinct into several domains, in which road-side units (RSUs) manage vehicles in a localized manner. Then, we adopt pseudonyms to achieve privacy-preserving and realize batch authentication by using an identity-based signature (IBS). Finally, we use HMAC to avoid the time-consuming CRL checking and to ensure the integrity of messages that may get loss in previous batch authentication. The security and performance analysis are carried out to demonstrate that ABAH is more efficient in terms of verification delay than the conventional authentication methods employing CRLs. Meanwhile, our solution can keep conditional privacy in VANETs.
An Efficient Anonymous Batch Authentication Scheme Based on HMAC for VANETs
IEEE Transactions on Intelligent Transportation Systems ; 17 , 8 ; 2193-2204
01.08.2016
2189444 byte
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
An Efficient Anonymous Batch Authentication Scheme Based on HMAC for VANETs
Online Contents | 2016
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