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WaterCoaster: A Device to Encourage People in a Playful Fashion to Reach Their Daily Water Intake Level
No full textEMPress: Practical Hand Gesture Classification with Wrist-Mounted EMG and Pressure Sensing
No full textInterfaces for assessing the rated perceived exertion (RPE) during high-intensity activities
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Use the Force: Evaluating Force-sensitive Authentication for Mobile Devices
Get PDFModern, off-the-shelf smartphones provide a rich set of possible touchscreen interactions, but knowledge-based authentication schemes still rely on simple digit or character input.
Previous studies examined the shortcomings of such schemes
based on unlock patterns, PINs, and passcodes.
In this paper, we propose to integrate pressure-sensitive
touchscreen interactions into knowledge-based authentication schemes. By adding a (practically) invisible, pressuresensitive component, users can select stronger PINs that are
harder to observe for a shoulder surfer. We conducted a
within-subjects design lab study (n = 50) to compare our
approach termed force-PINs with standard four-digit and
six-digit PINs regarding their usability performance and a
comprehensive security evaluation. In addition, we conducted a field study that demonstrated lower authentication overhead. Finally, we found that force-PINs let users
select higher entropy PINs that are more resilient to shoulder surfing attacks with minimal impact on the usability
performance