Jekyll and Hyde: On The Double-Faced Nature of Smart-Phone Sensor Noise Injection

Richard Matovu, Abdul Serwadda, David Irakiza, Isaac Griswold-Steiner

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

To combat privacy attacks that exploit the motion and orientation sensors embedded in mobile devices, a number of recent works have proposed noise injection schemes that degrade the quality of sensor data. Much as these schemes have been shown to thwart the attacks, the impact of noise injection on continuous authentication schemes proposed for mobile and wearable devices has never been studied. In this paper, we empirically tackle this question based on two widely studied continuous authentication applications (i.e., gait and handwriting authentication). Through a series of machine learning and statistical techniques, we show that the thresholds of noise needed to overcome the attacks would significantly degrade the performance of the continuous authentication applications. The paper argues against noise injection as a defense against attacks that exploit motion and orientation sensor data on mobile and wearable devices.

Original languageEnglish
Title of host publication2018 International Conference of the Biometrics Special Interest Group, BIOSIG 2018
EditorsArslan Bromme, Andreas Uhl, Christoph Busch, Christian Rathgeb, Antitza Dantcheva
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9783885796763
DOIs
StatePublished - Oct 10 2018
Event2018 International Conference of the Biometrics Special Interest Group, BIOSIG 2018 - Darmstadt, Germany
Duration: Sep 26 2018Sep 28 2018

Publication series

Name2018 International Conference of the Biometrics Special Interest Group, BIOSIG 2018

Conference

Conference2018 International Conference of the Biometrics Special Interest Group, BIOSIG 2018
CountryGermany
CityDarmstadt
Period09/26/1809/28/18

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Keywords

  • continuous authentication
  • gait authentication
  • handwriting authentication
  • wearables and mobile phones

Cite this

Matovu, R., Serwadda, A., Irakiza, D., & Griswold-Steiner, I. (2018). Jekyll and Hyde: On The Double-Faced Nature of Smart-Phone Sensor Noise Injection. In A. Bromme, A. Uhl, C. Busch, C. Rathgeb, & A. Dantcheva (Eds.), 2018 International Conference of the Biometrics Special Interest Group, BIOSIG 2018 [8553043] (2018 International Conference of the Biometrics Special Interest Group, BIOSIG 2018). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.23919/BIOSIG.2018.8553043