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Abstract:
Recently, spatial keyword query services have been widely deployed in real-life applications, such as location-based services and social networking. Several privacy-preserving spatial keyword queries solutions were proposed to guarantee data security and query privacy on outsourced data. However, those solutions are either based on broken cryptographic tools or support a single query type, and hence cannot meet the security and functionality requirements in practical applications. In this paper, we propose a Secure Spatial Keyword Queries (SSKQ) construction supporting expressive query types. Specifically, we present a secure index structure for spatial-textual data based on the encrypted Quadtree and Bloom filter, which can prune the index tree dynamically and only reveal the files associated with a set of keywords. The security analysis and the experiments conducted on real-world datasets demonstrate the security and performance of our construction. © 2021 IEEE.
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ISSN: 1520-6149
Year: 2021
Volume: 2021-June
Page: 2670-2674
Language: English
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 1
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