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I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Kamil Majdanik Mauro Conti Herbert Bos Cristiano Giuffrida VU University Amsterdam 11th Conference on Detection of Intrusions and Malware and

  1. I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Kamil Majdanik Mauro Conti Herbert Bos Cristiano Giuffrida VU University Amsterdam 11th Conference on Detection of Intrusions and Malware and Vulnerability Assessment Egham, UK July 10-11, 2014 I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 1 / 18

  2. The Blossom of the Mobile Computing Era I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 2 / 18

  3. Mobile Data Presentations / briefing notes. Address book information. Personal photos, movies, and email. Personal health, salary, and benefits information. Access credentials for networks and applications. Credit card and e-banking information. I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 3 / 18

  4. Mobile Threats I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 4 / 18

  5. Mobile Threats I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 4 / 18

  6. Mobile Threats I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 4 / 18

  7. Mobile Threats I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 4 / 18

  8. Mobile Authentication Password/PIN/Pattern-based authentication. ✧ Simple and widespread. ✪ No continuous authentication. ✪ Prone to guessing attacks (not mobile specific). ✪ Prone to smudge [WOOT’10] and shoulder-surfing [CCS’13] attacks. Biometric authentication. ✧ A viable option for many mobile users. ✧ Amenable to continuous authentication. ✧ Several existing mechanisms: gaits, gestures, keystroke dynamics. ✪ Poor accuracy ( > 5 % EER ) or prone to statistical attacks [CCS’13]. I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 5 / 18

  9. WWW: What We Want High-accuracy biometric authentication for mobile devices. Robustness against human attacks. Robustness against statistical attacks. Static authentication capabilities. Continuous authentication capabilities. Robustness against uncontrolled settings. I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 6 / 18

  10. WWW: What We Want ✧ High-accuracy biometric authentication for mobile devices. ✧ Robustness against human attacks. - Robustness against statistical attacks. ✧ Static authentication capabilities. - Continuous authentication capabilities. - Robustness against uncontrolled settings. I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 6 / 18

  11. Sensor-enhanced Keystroke Dynamics Soft keyboard on a mobile device I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 7 / 18

  12. Sensor-enhanced Keystroke Dynamics Scenario: User typing ’HELLO’ I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 7 / 18

  13. Sensor-enhanced Keystroke Dynamics User 1 KeyDowns User 1 KeyUps Keystroke dynamics I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 7 / 18

  14. Sensor-enhanced Keystroke Dynamics User 1 KeyDowns User 1 KeyUps Keystroke dynamics I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 7 / 18

  15. Sensor-enhanced Keystroke Dynamics User 1 KeyDowns User 1 KeyUps Keystroke dynamics I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 7 / 18

  16. Sensor-enhanced Keystroke Dynamics User 1 KeyDowns User 1 KeyUps Keystroke dynamics I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 7 / 18

  17. Sensor-enhanced Keystroke Dynamics User 1 KeyDowns User 1 KeyUps Keystroke dynamics I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 7 / 18

  18. Sensor-enhanced Keystroke Dynamics User 1 KeyDowns User 1 KeyUps Keystroke dynamics I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 7 / 18

  19. Sensor-enhanced Keystroke Dynamics User 1 KeyDowns User 1 KeyUps Keystroke dynamics I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 7 / 18

  20. Sensor-enhanced Keystroke Dynamics User 1 KeyDowns User 1 KeyUps Keystroke dynamics I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 7 / 18

  21. Sensor-enhanced Keystroke Dynamics User 1 KeyDowns User 1 KeyUps Keystroke dynamics I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 7 / 18

  22. Sensor-enhanced Keystroke Dynamics User 1 KeyDowns User 1 KeyUps Keystroke dynamics I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 7 / 18

  23. Sensor-enhanced Keystroke Dynamics User 1 KeyDowns User 1 KeyUps Keystroke dynamics I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 7 / 18

  24. Sensor-enhanced Keystroke Dynamics User 1 KeyDowns User 1 KeyUps Keystroke dynamics I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 7 / 18

  25. Sensor-enhanced Keystroke Dynamics 0,10 Value 0,05 Gyroscope 0,00 -0,05 -0,10 User 1 User 1 KeyDowns User 1 KeyUps Sensor-enhanced keystroke dynamics I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 7 / 18

  26. Sensor-enhanced Keystroke Dynamics 0,10 Value 0,05 Gyroscope 0,00 -0,05 -0,10 User 1 User 1 KeyDowns User 1 KeyUps Sensor-enhanced keystroke dynamics I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 7 / 18

  27. Sensor-enhanced Keystroke Dynamics 0,10 Value 0,05 Gyroscope 0,00 -0,05 -0,10 User 1 User 1 KeyDowns User 1 KeyUps Sensor-enhanced keystroke dynamics I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 7 / 18

  28. Sensor-enhanced Keystroke Dynamics 0,10 Value 0,05 Gyroscope 0,00 -0,05 -0,10 User 1 User 1 KeyDowns User 1 KeyUps Sensor-enhanced keystroke dynamics I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 7 / 18

  29. Sensor-enhanced Keystroke Dynamics 0,10 Value 0,05 Gyroscope 0,00 -0,05 -0,10 User 1 User 1 KeyDowns User 1 KeyUps Sensor-enhanced keystroke dynamics I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 7 / 18

  30. Sensor-enhanced Keystroke Dynamics 0,10 Value 0,05 Gyroscope 0,00 -0,05 -0,10 User 1 User 1 KeyDowns User 1 KeyUps Sensor-enhanced keystroke dynamics I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 7 / 18

  31. Sensor-enhanced Keystroke Dynamics 0,10 Value 0,05 Gyroscope 0,00 -0,05 -0,10 User 1 User 1 KeyDowns User 1 KeyUps Sensor-enhanced keystroke dynamics I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 7 / 18

  32. Sensor-enhanced Keystroke Dynamics 0,10 Value 0,05 Gyroscope 0,00 -0,05 -0,10 User 1 User 1 KeyDowns User 1 KeyUps Sensor-enhanced keystroke dynamics I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 7 / 18

  33. Sensor-enhanced Keystroke Dynamics 0,10 Value 0,05 Gyroscope 0,00 -0,05 -0,10 User 1 User 1 KeyDowns User 1 KeyUps Sensor-enhanced keystroke dynamics I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 7 / 18

  34. Sensor-enhanced Keystroke Dynamics 0,10 Value 0,05 Gyroscope 0,00 -0,05 -0,10 User 1 User 1 KeyDowns User 1 KeyUps Sensor-enhanced keystroke dynamics I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 7 / 18

  35. Sensor-enhanced Keystroke Dynamics 0,10 Value 0,05 Gyroscope 0,00 -0,05 -0,10 User 1 User 1 KeyDowns User 1 KeyUps Sensor-enhanced keystroke dynamics I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 7 / 18

  36. Sensor-enhanced Keystroke Dynamics 0,10 Value 0,05 Gyroscope 0,00 -0,05 -0,10 User 1 User 1 KeyDowns User 1 KeyUps Sensor-enhanced keystroke dynamics I Sensed It Was You: Authenticating Mobile Users with Sensor-enhanced Keystroke Dynamics Cristiano Giuffrida 7 / 18

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