Distributed Searchable Symmetric Encryption

C.T. Bösch, Andreas Peter, Bram Leenders, Hoon Wei Lim, Qiang Tang, Huaxiong Wang, Pieter H. Hartel, Willem Jonker

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

17 Citations (Scopus)
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Abstract

Searchable Symmetric Encryption (SSE) allows a client to store encrypted data on a storage provider in such a way, that the client is able to search and retrieve the data selectively without the storage provider learning the contents of the data or the words being searched for. Practical SSE schemes usually leak (sensitive) information during or after a query (e.g., the search pattern). Secure schemes on the other hand are not practical, namely they are neither efficient in the computational search complexity, nor scalable with large data sets. To achieve efficiency and security at the same time, we introduce the concept of distributed SSE (DSSE), which uses a query proxy in addition to the storage provider. We give a construction that combines an inverted index approach (for efficiency) with scrambling functions used in private information retrieval (PIR) (for security). The proposed scheme, which is entirely based on XOR operations and pseudo-random functions, is efficient and does not leak the search pattern. For instance, a secure search in an index over one million documents and 500 keywords is executed in less than 1 second.
Original languageUndefined
Title of host publicationTwelfth Annual International Conference on Privacy, Security and Trust, PST 2014
Place of PublicationUSA
PublisherIEEE
Pages330-337
Number of pages8
ISBN (Print)978-1-4799-3502-4
DOIs
Publication statusPublished - Jul 2014

Publication series

Name
PublisherIEEE

Keywords

  • SCS-Cybersecurity
  • Practical Efficiency
  • EWI-24734
  • METIS-304098
  • Search Pattern Hiding
  • Searchable Encryption
  • Semi-Honest Model
  • IR-91056

Cite this

Bösch, C. T., Peter, A., Leenders, B., Lim, H. W., Tang, Q., Wang, H., ... Jonker, W. (2014). Distributed Searchable Symmetric Encryption. In Twelfth Annual International Conference on Privacy, Security and Trust, PST 2014 (pp. 330-337). USA: IEEE. https://doi.org/10.1109/PST.2014.6890956