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An Efficient Multi-keyword Text Search Over Outsourced Encrypted Cloud Data with Ranked Results

  • Prabhat Keshari SamantarayEmail author
  • Navjeet Kaur Randhawa
  • Swarna Lata Pati
Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 711)

Abstract

Cloud computing offers efficient deployment options that motivate large enterprises to outsource the data to the cloud. However, outsourcing sensitive information may compromise the privacy of the data. To enable keyword-based search over encrypted data, we proposed a multi-keyword search scheme on a tree-based encrypted index data structure to retrieve information from encrypted cloud data. In this model, the document collection is clustered using a hierarchical k-means method. A vector space model was used to create an encrypted index and query vectors, and a depth-first search algorithm is proposed for efficient search mechanism. The results were ranked based on relevance score between the encrypted index and query vectors. Rigorous experiments show the performance and efficiency of the proposed methods.

Keywords

Cloud computing Symmetric searchable encryption Document clustering Multi-keyword ranked search 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Prabhat Keshari Samantaray
    • 1
    Email author
  • Navjeet Kaur Randhawa
    • 1
  • Swarna Lata Pati
    • 1
  1. 1.Department of Computer Science and EngineeringCollege of Engineering and TechnologyGhatikia, BhubaneswarIndia

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