UCL logo

UCL Discovery

UCL home » Library Services » Electronic resources » UCL Discovery

Are passfaces more usable than passwords? A field trial investigation

Brostoff, S; Sasse, MA; (2000) Are passfaces more usable than passwords? A field trial investigation. In: McDonald, S and Waern, Y and Cockton, G, (eds.) PEOPLE AND COMPUTERS XIV - USABILITY OR ELSE! (pp. 405 - 424). SPRINGER-VERLAG LONDON LTD

[img] PDF
Access restricted to UNSPECIFIED
Available under License : See the attached licence file.

Download (237kB)
[img] PDF (licence)
RPS deposit licence.pdf
Access restricted to UNSPECIFIED

Download (95kB)


The proliferation of technology requiring user authentication has increased the number of passwords which users have to remember, creating a significant usability problem. This paper reports a usability comparison between a new mechanism for user authentication Passfaces - and passwords, with 34 student participants in a 3-month held trial. Fewer login errors were made with Passfaces, even when periods between logins were long, On the computer facilities regularly chosen by participants to log in, Passfaces took a long time to execute. Participants consequently started their work later when using Passfaces than when using passwords, and logged into the system less often, The results emphasise the importance of evaluating the usability of security mechanisms in field trials.

Type: Proceedings paper
Title: Are passfaces more usable than passwords? A field trial investigation
Event: Annual Conference on Human-Computer Interaction Topics (HCI 2000)
Dates: 2000-09
ISBN: 1-85233-318-9
Keywords: task performance, evaluation, passwords, security, human memory, MEMORY, AUTHENTICATION, RECALL
URI: http://discovery.ucl.ac.uk/id/eprint/19830
Downloads since deposit
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item