TapSongs: tapping rhythm-based passwords on a single binary sensor

  • Authors:
  • Jacob Otto Wobbrock

  • Affiliations:
  • University of Washington, Seattle, WA, USA

  • Venue:
  • Proceedings of the 22nd annual ACM symposium on User interface software and technology
  • Year:
  • 2009

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Abstract

TapSongs are presented, which enable user authentication on a single "binary" sensor (e.g., button) by matching the rhythm of tap down/up events to a jingle timing model created by the user. We describe our matching algorithm, which employs absolute match criteria and learns from successful logins. We also present a study of 10 subjects showing that after they created their own TapSong models from 12 examples (