Evaluating the usability and security of a graphical one-time PIN system

  title={Evaluating the usability and security of a graphical one-time PIN system},
  author={Sacha Brostoff and Philip Inglesant and M. Angela Sasse},
  booktitle={BCS HCI},
Traditional Personal Identification Numbers (PINs) are widely used, but the attacks in which they are captured have been increasing. One-time PINs offer better security, but potentially create greater workload for users. In this paper, we present an independent evaluation of a commercial system that makes PINs more resistant to observation attacks by using graphical passwords on a grid to generate a one-time PIN. 83 participants were asked to register with the system and log in at varying… CONTINUE READING
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