Sharing without Scaring: Enabling Smartphones to Become Aware of Temporary Sharing
summary
A prototype Android service called DSA detects handover gestures from motion sensors and uses behavioral-biometric in-place authentication to verify the owner when the device returns, then enforces app-level access control and notification hiding. Evaluation uses ~3,700 labeled clips (n=18) for handover detection and 50 sharing sessions (n=10); cross-user models reach ~98% precision, ~95% recall, median detection time ~2.33 s, and DSA automatically handles 41 sessions while correcting seven more.
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chapters (9)
- 0:00Intro
- 1:18Device Sharing Protection Solutions
- 1:59Owner's Failure to Enable Sharing Protection
- 2:47Device Sharing Awareness (DSA)
- 3:58Sharing Gesture Detection
- 5:07Owner Detection
- 6:05Implementation
- 6:45Evaluation Setup
- 7:32Handover Detection Results
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