Is a picture really worth a thousand words? Exploring the feasibility of graphical authentication systems
De Angeli, A and Coventry, L and Johnson, Graham and Renaud, K (2005) Is a picture really worth a thousand words? Exploring the feasibility of graphical authentication systems. International Journal of Human Computer Studies, 63 (1-2). pp. 128-152. ISSN 1071-5819 (https://doi.org/10.1016/j.ijhcs.2005.04.020)
Preview |
Text.
Filename: DeAngeli_etal_IJHCS2005_Is_picture_really_worth_thousand_words_exploring_feasibility_graphical_authentication.pdf
Accepted Author Manuscript License: Download (434kB)| Preview |
Abstract
The weakness of knowledge-based authentication systems, such as passwords and Personal Identification Numbers (PINs), is well known, and reflects an uneasy compromise between security and human memory constraints. Research has been undertaken for some years now into the feasibility of graphical authentication mechanisms in the hope that these will provide a more secure and memorable alternative. The graphical approach substitutes the exact recall of alphanumeric codes with the recognition of previously learnt pictures, a skill at which humans are remarkably proficient. So far, little attention has been devoted to usability, and initial research has failed to conclusively establish significant memory improvement. This paper reports two user studies comparing several implementations of the graphical approach with PINs. Results demonstrate that pictures can be a solution to some problems relating to traditional knowledge-based authentication but that they are not a simple panacea, since a poor design can eliminate the picture superiority effect in memory. The paper concludes by discussing the potential of the graphical approach and providing guidelines for developers contemplating using these mechanisms.
ORCID iDs
De Angeli, A, Coventry, L, Johnson, Graham and Renaud, K ORCID: https://orcid.org/0000-0002-7187-6531;-
-
Item type: Article ID code: 75086 Dates: DateEvent1 July 2005PublishedSubjects: Science > Mathematics > Electronic computers. Computer science Department: Faculty of Science > Computer and Information Sciences Depositing user: Pure Administrator Date deposited: 21 Jan 2021 12:37 Last modified: 21 Oct 2024 00:27 URI: https://strathprints.strath.ac.uk/id/eprint/75086