Where usability and security go hand-in-hand: Robust gesture-based authentication for mobile systems

Can Liu, Gradeigh D. Clark, Janne Lindqvist

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

7 Citations (Scopus)

Abstract

Gestures have recently gained interest as a secure and usable authentication method for mobile devices. Gesture authentication relies on recognition, wherein raw data is collected from user input and preprocessed into a more manageable form before applying recognition algorithms. Preprocessing is done to improve recognition accuracy, but little work has been done in justifying its effects on authentication. We examined the effects of three variables: Location, rotation, and scale, on authentication accuracy. We found that an authentication-optimal combination (location invariant, scale variant, and rotation variant) can reduce the error rate by 45.3% on average compared to the recognition-optimal combination (all invariant). We analyzed 13 gesture recognizers and evaluated them with three criteria: authentication accuracy, and resistance against both brute-force and imitation attacks. Our novel multi-expert method (Garda) achieved the lowest error rate (0.015) in authentication accuracy, the lowest error rate (0.040) under imitation attacks, and resisted all brute-force attacks.

Original languageEnglish
Title of host publicationCHI 2017 - Proceedings of the 2017 ACM SIGCHI Conference on Human Factors in Computing Systems
Subtitle of host publicationExplore, Innovate, Inspire
PublisherAssociation for Computing Machinery (ACM)
Pages374-386
Number of pages13
ISBN (Electronic)9781450346559
DOIs
Publication statusPublished - 2 May 2017
MoE publication typeA4 Article in a conference publication
EventInternational Conference on Human-Computer Interaction with Mobile Devices and Services - Vienna, Austria
Duration: 4 Sep 20177 Sep 2017
Conference number: 19
https://mobilehci.acm.org/2017/
http://mobilehci.acm.org/2017/

Publication series

NameConference on Human Factors in Computing Systems - Proceedings
Volume2017-May

Conference

ConferenceInternational Conference on Human-Computer Interaction with Mobile Devices and Services
Abbreviated titleMobileHCI 2017
CountryAustria
CityVienna
Period04/09/201707/09/2017
Internet address

Keywords

  • Authentication
  • Gesture
  • Mobile device
  • Security

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