Privacy injector — automated privacy enforcement through aspects

  • Authors:
  • Chris Vanden Berghe;Matthias Schunter

  • Affiliations:
  • Zurich Research Laboratory, IBM Research, Rüschlikon, Switzerland;Zurich Research Laboratory, IBM Research, Rüschlikon, Switzerland

  • Venue:
  • PET'06 Proceedings of the 6th international conference on Privacy Enhancing Technologies
  • Year:
  • 2006

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Abstract

Protection of personal data is essential for customer acceptance. Even though existing privacy policies can describe how data shall be handled, privacy enforcement remains a challenge. Especially for existing applications, it is unclear how one can effectively ensure correct data handling without completely redesigning the applications. In this paper we introduce Privacy Injector, which allows us to add privacy enforcement to existing applications. Conceptually Privacy Injector consists of two complementary parts, namely, a privacy metadata tracking and a privacy policy enforcement part. We show how Privacy Injector protects the complete life cycle of personal data by providing us with a practical implementation of the “sticky policy paradigm.” Throughout the collection, transformation, disclosure and deletion of personal data, Privacy Injector will automatically assign, preserve and update privacy metadata as well as enforce the privacy policy. As our approach is policy-agnostic, we can enforce any policy language that describes which actions may be performed on which data.