Towards a mechanism for incentivating privacy

  • Authors:
  • Piero A. Bonatti;Marco Faella;Clemente Galdi;Luigi Sauro

  • Affiliations:
  • Università di Napoli "Federico II";Università di Napoli "Federico II";Università di Napoli "Federico II";Università di Napoli "Federico II"

  • Venue:
  • ESORICS'11 Proceedings of the 16th European conference on Research in computer security
  • Year:
  • 2011

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Abstract

The economic value of rich user profiles is an incentive for providers to collect more personal (and sensitive) information than the minimum amount needed for deploying services effiectively and securely. With a game-the-oretic approach, we show that provider competition can reduce such information requests. The key is a suitable mechanism, roughly reminiscent of a Vickrey auction subject to integrity constraints. We show that our mechanism induces rational providers to ask exactly for the user information strictly necessary to deliver their service effiectively and securely. In this framework, maximal attribute disclosures become more diæcult to achieve.