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A Privacy Protection Scheme for a Scalable Control Method in Context-Dependent Services

  • Rei Yoshida
  • Rie Shigetomi
  • Kazuki Yoshizoe
  • Akira Otsuka
  • Hideki Imai
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4945)

Abstract

Provision of context-dependent services is triggered when the context satisfies an execution condition. To deliver these services, users’ contexts have to be determined by terminals such as GPS. However, GPS has efficiency (it must collect as many contexts as possible to provide services appropriately) and privacy problems (all data is concentrated on one place). Previous studies have addressed only either one of the two problems. We propose a scheme that protects users’ privacy while maintaining efficiency by using the Randomized Response Technique.

Keywords

Context-dependent Service Privacy Protection Randomized Response Technique 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  • Rei Yoshida
    • 1
  • Rie Shigetomi
    • 2
  • Kazuki Yoshizoe
    • 1
  • Akira Otsuka
    • 2
  • Hideki Imai
    • 1
    • 2
  1. 1.Imai Lab., Dept. of Electrical, Electronic, and Communication Engineering, Faculty of Science and EngineeringChuo UniversityTokyoJapan
  2. 2.National Institute of Advanced Industrial Science and TechnologyResearch Center for Information SecurityTokyoJapan

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