I Can’t Type That! P@$$w0rd Entry on Mobile Devices

  • Kristen K. Greene
  • Melissa A. Gallagher
  • Brian C. Stanton
  • Paul Y. Lee
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8533)


Given the numerous constraints of onscreen keyboards, such as smaller keys and lack of tactile feedback, remembering and typing long, complex passwords — an already burdensome task on desktop computing systems —becomes nearly unbearable on small mobile touchscreens. Complex passwords require numerous screen depth changes and are problematic both motorically and cognitively. Here we present baseline data on device- and age-dependent differences in human performance with complex passwords, providing a valuable starting dataset to warn that simply porting password requirements from one platform to another (i.e., desktop to mobile) without considering device constraints may be unwise.


Passwords authentication security memory mobile text entry typing touchscreens smartphones tablets 


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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Kristen K. Greene
    • 1
  • Melissa A. Gallagher
    • 2
  • Brian C. Stanton
    • 1
  • Paul Y. Lee
    • 1
  1. 1.National Institute of Standards and TechnologyGaithersburgUSA
  2. 2.Rice UniversityHoustonUSA

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