Generalizing PIR for practical private retrieval of public data

Shiyuan Wang, Divyakant Agrawal, Amr El Abbadi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

16 Citations (Scopus)

Abstract

Private retrieval of public data is useful when a client wants to query a public data service without revealing the query to the server. Computational Private Information Retrieval (cPIR) achieves complete privacy for clients, but is deemed impractical since it involves expensive computation on all the data on the server. Besides, it is inflexible if the server wants to charge the client based on the service data that is exposed. k-Anonymity, on the other hand, is flexible and cheap for anonymizing the querying process, but is vulnerable to privacy and security threats. We propose a practical and flexible approach for the private retrieval of public data called Bounding-Box PIR (bbPIR). Using bbPIR, a client specifies both privacy requirements and a service charge budget. The server satisfies the client's requirements, and achieves overall good performance in computation and communication. bbPIR generalizes cPIR and k-Anonymity in that the bounding box can include as much as all the data on the server or as little as just k data items. The efficiency of bbPIR compared to cPIR and the effectiveness of bbPIR compared to k-Anonymity are verified in extensive experimental evaluations.

Original languageEnglish
Title of host publicationLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Pages1-16
Number of pages16
Volume6166 LNCS
DOIs
Publication statusPublished - 29 Oct 2010
Externally publishedYes
Event24th Annual IFIP WG 11.3 Working Conference on Data and Applications Security and Privacy - Rome, Italy
Duration: 21 Jun 201021 Jun 2010

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume6166 LNCS
ISSN (Print)03029743
ISSN (Electronic)16113349

Other

Other24th Annual IFIP WG 11.3 Working Conference on Data and Applications Security and Privacy
CountryItaly
CityRome
Period21/6/1021/6/10

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ASJC Scopus subject areas

  • Computer Science(all)
  • Theoretical Computer Science

Cite this

Wang, S., Agrawal, D., & El Abbadi, A. (2010). Generalizing PIR for practical private retrieval of public data. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 6166 LNCS, pp. 1-16). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 6166 LNCS). https://doi.org/10.1007/978-3-642-13739-6_1