Authentication plays an important role in verifying the integrity of messages and the identity of message senders in vehicular ad-hoc networks (VANET) applications. A significant challenge in expansive regions pertains to the efficient authentication of multiple vehicles traversing trust domains. This paper introduces a novel cross-domain batch authentication scheme for VANETs, denominated as CD-BASA, leveraging blockchain technology in conjunction with accumulator. The CD-BASA scheme is built upon blockchain with accumulator and interplanetary file systems for streamlined storage and batch computation. Subsequently, a proficient cross-domain batch authentication protocol for CD-BASA is devised, encompassing the establishment of domain-specific and global parameters, which greatly reduces the identity verification cost for multiple vehicles. To further minimize the overhead associated with batch validity proofing, a novel multi-accumulator batch proof algorithm is designed to greatly reduce the proof cost of multiple vehicle identities. Experimental evaluations and theoretical security analysis show that CD-BASA has better performance than other existing schemes, in terms of cross-domain batch authentication overhead (improving at least 18.2%) and accumulator proof overhead (reducing at least 69.9%).


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    Title :

    CD-BASA: An Efficient Cross-Domain Batch Authentication Scheme Based on Blockchain With Accumulator for VANETs


    Contributors:
    Zhong, Qiang (author) / Zhao, Xiang (author) / Xia, Yingjie (author) / Liu, Xuejiao (author)

    Published in:

    Publication date :

    2024-10-01


    Size :

    15873744 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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