Authentication using graphical passwords

Effects of tolerance and image choice

Susan Wiedenbeck, Jim Waters, Jean Camille Birget, Alex Brodskiy, Nasir Memon

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

    Abstract

    Graphical passwords are an alternative to alphanumeric passwords in which users click on images to authenticate themselves rather than type alphanumeric strings. We have developed one such system, called PassPoints, and evaluated it with human users. The results of the evaluation were promising with respect to rmemorability of the graphical password. In this study we expand our human factors testing by studying two issues: the effect of tolerance, or margin of error, in clicking on the password points and the effect of the image used in the password system. In our tolerance study, results show that accurate memory for the password is strongly reduced when using a small tolerance (10 × 10 pixels) around the user's password points. This may occur because users fail to encode the password points in memory in the precise manner that is necessary to remember the password over a lapse of time. In our image study we compared user performance on four everyday images. The results indicate that there were few significant differences in performance of the images. This preliminary result suggests that many images may support memorability in graphical password systems.

    Original languageEnglish (US)
    Title of host publicationSOUPS 2005 - Proceedings of the Symposium on Usable Privacy and Security
    Pages1-12
    Number of pages12
    Volume93
    DOIs
    StatePublished - 2005
    EventSymposium on Usable Privacy and Security, SOUPS 2005 - Pittsburgh, PA, United States
    Duration: Jul 6 2005Jul 8 2005

    Other

    OtherSymposium on Usable Privacy and Security, SOUPS 2005
    CountryUnited States
    CityPittsburgh, PA
    Period7/6/057/8/05

    Fingerprint

    Authentication
    Data storage equipment
    Human engineering
    Pixels
    Testing

    Keywords

    • Authentication
    • Graphical passwords
    • Password images
    • Tolerance

    ASJC Scopus subject areas

    • Human-Computer Interaction
    • Computer Networks and Communications
    • Computer Vision and Pattern Recognition
    • Software

    Cite this

    Wiedenbeck, S., Waters, J., Birget, J. C., Brodskiy, A., & Memon, N. (2005). Authentication using graphical passwords: Effects of tolerance and image choice. In SOUPS 2005 - Proceedings of the Symposium on Usable Privacy and Security (Vol. 93, pp. 1-12) https://doi.org/10.1145/1073001.1073002

    Authentication using graphical passwords : Effects of tolerance and image choice. / Wiedenbeck, Susan; Waters, Jim; Birget, Jean Camille; Brodskiy, Alex; Memon, Nasir.

    SOUPS 2005 - Proceedings of the Symposium on Usable Privacy and Security. Vol. 93 2005. p. 1-12.

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

    Wiedenbeck, S, Waters, J, Birget, JC, Brodskiy, A & Memon, N 2005, Authentication using graphical passwords: Effects of tolerance and image choice. in SOUPS 2005 - Proceedings of the Symposium on Usable Privacy and Security. vol. 93, pp. 1-12, Symposium on Usable Privacy and Security, SOUPS 2005, Pittsburgh, PA, United States, 7/6/05. https://doi.org/10.1145/1073001.1073002
    Wiedenbeck S, Waters J, Birget JC, Brodskiy A, Memon N. Authentication using graphical passwords: Effects of tolerance and image choice. In SOUPS 2005 - Proceedings of the Symposium on Usable Privacy and Security. Vol. 93. 2005. p. 1-12 https://doi.org/10.1145/1073001.1073002
    Wiedenbeck, Susan ; Waters, Jim ; Birget, Jean Camille ; Brodskiy, Alex ; Memon, Nasir. / Authentication using graphical passwords : Effects of tolerance and image choice. SOUPS 2005 - Proceedings of the Symposium on Usable Privacy and Security. Vol. 93 2005. pp. 1-12
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