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SUMMARY:Free-Form Gesture Passwords: Security\, Memorability\, Usability -
  Janne Lindqvist\, assistant professor of electrical and computer engineer
 ing\, Rutgers University
DTSTART:20170328T130000Z
DTEND:20170328T140000Z
UID:TALK71740@talks.cam.ac.uk
CONTACT:Laurent Simon
DESCRIPTION:*Abstract:*\nWe have proposed gesture passwords as a ubiquitou
 s authentication\ntechnology\, especially targeting mobile device unlockin
 g. Gesture\npasswords present a fascinating design space for authenticatio
 n. They\nare distinct from graphical passwords\, which resemble text-based
 \npasswords in the sense that they allow for the password to be exactly\nr
 eproduced. In contrast\, a gesture password cannot be exactly matched:\nit
  must be recognized despite not being input by the user the same way\never
 y time. In this talk\, we will present the results of several lab and\nfie
 ld studies (MobiSys’14\, CHI’16\, CHI’17\, UbiComp’17) on studying
 \nusability and security of gesture passwords. We will also present the\nf
 irst approach for measuring the security of gestures with guessing\nattack
 s that model real-world attacker behavior. Our dictionary attack\,\ntested
  on newly collected user data\, achieves a cracking rate of 47.71%\nafter 
 two weeks of computation using 10^9 guesses. This is a difference\nof 35.7
 8 percentage points compared to the 11.93% cracking rate of a\nbenchmark b
 rute-force attack. More details of these works are available\nat http://se
 curegestures.org/.\n\n*Bio:*\nJanne Lindqvist is an assistant professor of
  electrical and computer\nengineering at Rutgers University. His work is f
 requently featured in\nthe popular media with close to thousand mentions s
 o far including\nseveral times in Scientific American\, IEEE Spectrum\, MI
 T Technology\nReview\, NPR\, WHYY Radio\, Yahoo! News\, International Busi
 ness Times\,\nDaily Mail\, and recently also in ABC News Radio\, CBS Radio
  News\,\nFortune\, Computerworld\, Der Spiegel\, London Times\, Slashdot\,
  The\nRegister\, Wired (UK). Janne directs the Rutgers Human-Computer\nInt
 eraction and Security Engineering Lab. Janne’s work focuses on hard\nrea
 l-world problems\, and currently his group and his colleagues work\ninclud
 es usable and secure authentication\, mobile privacy\,\nphysical-world cro
 wdsourcing\, measuring implicit racism in situ\, social\nprotocols for wir
 eless networking\, and ecological field studies on\nnon-suicidal self-inju
 rious behavior. His awards include the Best Paper\nAward from MobiCom’12
 \, the Best Paper Nominee Award from UbiComp’14\, and\nSustainable Jerse
 y Creation & Innovation Award 2014.
LOCATION:LT2\, Computer Laboratory\, William Gates Building
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