An Anonymity Model Achievable Via Microaggregation

  • Authors:
  • Josep Domingo-Ferrer;Francesc Sebé;Agusti Solanas

  • Affiliations:
  • Dept. of Computer Engineering and Mathematics, Universitat Rovira i Virgili, UNESCO Chair in Data Privacy, Tarragona E-43007;Dept. of Computer Engineering and Mathematics, Universitat Rovira i Virgili, UNESCO Chair in Data Privacy, Tarragona E-43007;Dept. of Computer Engineering and Mathematics, Universitat Rovira i Virgili, UNESCO Chair in Data Privacy, Tarragona E-43007

  • Venue:
  • SDM '08 Proceedings of the 5th VLDB workshop on Secure Data Management
  • Year:
  • 2008

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Abstract

k-Anonymity is a privacy model requiring that all combinations of key attributes in a database be repeated at least for krecords. It has been shown that k-anonymity alone does not always ensure privacy. A number of sophistications of k-anonymity have been proposed, like p-sensitive k-anonymity, l-diversity and t-closeness. We identify some shortcomings of those models and propose a new model called (k,p,q,r)-anonymity. Also, we propose a computational procedure to achieve this new model that relies on microaggregation.