Towards Public Key Encryption Scheme Supporting Equality Test with Fine-Grained Authorization

Qiang Tang

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    110 Citations (Scopus)
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    In this paper we investigate a new category of public key encryption schemes which supports equality test between ciphertexts. With this new primitive, two users, who possess their own public/private key pairs, can issue token(s) to a proxy to authorize it to perform equality test between their ciphertexts. We provide a formulation and a corresponding construction for this primitive, and our formulation provides fine-grained authorization policy enforcements for users. With the increasing popularity of outsourcing data and computations to third-party service providers, this new primitive will be an important building block in designing privacy protection solutions supporting operations on encrypted data.
    Original languageUndefined
    Title of host publicationProceedings of the 16th Australian conference on information security and privacy
    Place of PublicationLondon
    Number of pages19
    ISBN (Print)978-3-642-22497-3
    Publication statusPublished - 2011
    Event16th Australasian Conference on Information Security and Privacy, ACISP 2011 - RMIT University, Melbourne, Australia
    Duration: 11 Jul 201113 Jul 2011
    Conference number: 16

    Publication series

    NameLecture Notes in Computer Science
    PublisherSpringer Verlag


    Conference16th Australasian Conference on Information Security and Privacy, ACISP 2011
    Abbreviated titleACISP


    • METIS-277611
    • SCS-Cybersecurity
    • EWI-20087
    • IR-76721

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