Location-based trust for mobile user-generated content: applications, challenges and implementations

  • Authors:
  • Vincent Lenders;Emmanouil Koukoumidis;Pei Zhang;Margaret Martonosi

  • Affiliations:
  • Princeton University;Princeton University;Princeton University;Princeton University

  • Venue:
  • Proceedings of the 9th workshop on Mobile computing systems and applications
  • Year:
  • 2008

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Abstract

The recent explosion in shared media content and sensed data produced by mobile end-users is challenging well-established principles and assumptions in data trust models. A fundamental issue we address in this paper is how to establish some trust level in the authenticity of content created by untrusted mobile users. We advocate a secure localization and certification service that allows content producers to tag their content with with a spatial times-tamp indicating its physical location. At the same time, however, our approach preserves the privacy of producers by not exposing their identity to the potential content consumers. We provide a list of existing and possible applications that would profit from such a secure localization service and sketch possible implementations of the service, highlighting advantages and drawbacks.