Tag, you can see it!: using tags for access control in photo sharing

  • Authors:

  • Peter Klemperer;Yuan Liang;Michelle Mazurek;Manya Sleeper;Blase Ur;Lujo Bauer;Lorrie Faith Cranor;Nitin Gupta;Michael Reiter

  • Affiliations:

  • Carnegie Mellon University, Pittsburgh, PA, United States;Carnegie Mellon University, pittsburgh, PA, United States;Carnegie Mellon University, Pittsburgh, Pennsylvania, United States;Carnegie Mellon University, Pittsburgh, Pennsylvania, United States;Carnegie Mellon University, Pittsburgh, PA, USA;Carnegie Mellon University, Pittsburgh, Pennsylvania, United States;Carnegie Mellon, Pittsburgh, Pennsylvania, United States;Carnegie Mellon University, Pittsburgh, PA, United States;University of North Carolina, Chapel Hill, Chapel Hill, NC, United States

  • Venue:
  • Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
  • Year:
  • 2012

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Abstract

Users often have rich and complex photo-sharing preferences, but properly configuring access control can be difficult and time-consuming. In an 18-participant laboratory study, we explore whether the keywords and captions with which users tag their photos can be used to help users more intuitively create and maintain access-control policies. We find that (a) tags created for organizational purposes can be repurposed to create efficient and reasonably accurate access-control rules; (b) users tagging with access control in mind develop coherent strategies that lead to significantly more accurate rules than those associated with organizational tags alone; and (c) participants can understand and actively engage with the concept of tag-based access control.