An efficient non-interactive multi-client searchable encryption with support for boolean queries

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    Motivated by the recent searchable symmetric encryption protocol of Cash et al., we propose a new multi-client searchable encryption protocol in this work. By tactfully leveraging the RSA-function, our protocol avoids the per-query interaction between the data owner and the client, thus reducing the communication overhead significantly and eliminating the need of the data owner to provide the online services to clients at all times. Furthermore, our protocol manages to protect the query privacy of clients to some extent, meaning that our protocol hides the exact queries from the data owner. In terms of the leakage to server, it is exactly the same as Cash et al., thus achieving the same security against the adversarial server. In addition, by employing attribute-based encryption technique, our protocol also realizes the fine-grained access control on the stored data. To be compatible with our RSA-based approach, we also present a deterministic and memory-efficient ‘keyword to prime’ hash function, which may be of independent interest.

    Original languageEnglish
    Title of host publicationComputer Security - ESORICS 2016
    Subtitle of host publication21st European Symposium on Research in Computer Security, Heraklion, Greece, September 26–30, 2016, Proceedings, Part I
    EditorsIoannis Askoxylakis, Sotiris Ioannidis, Sokratis Katsikas, Catherine Meadows
    Place of PublicationSwitzerland
    Number of pages19
    ISBN (Electronic)9783319457444
    ISBN (Print)9783319457437
    Publication statusPublished - 15 Sept 2016
    EventEuropean Symposium On Research In Computer Security 2016 - Heraklion, Greece
    Duration: 26 Sept 201630 Sept 2016
    Conference number: 21st (Proceedings) (Website)

    Publication series

    NameLecture Notes in Computer Science
    ISSN (Print)0302-9743
    ISSN (Electronic)1611-3349


    ConferenceEuropean Symposium On Research In Computer Security 2016
    Abbreviated titleESORICS 2016
    Internet address


    • Cloud storage
    • Searchable encryption
    • Non-interaction
    • Multi-client
    • RSA function

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