Multicriteria optimization to select images as passwords in recognition based graphical authentication systems

Soumyadeb Chowdhury, Ron Poet, Lewis Mackenzie

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

Abstract

Usability and guessability are two conflicting criteria in assessing thesuitability of an image to be used as password in the recognition based graph-ical authentication systems (RGBSs). We present the first work in this area that uses a new approach, which effectively integrates a series of techniques in order to rank images taking into account the values obtained for each of the dimen-sions of usability and guessability, from two user studies. Our approach uses fuzzy numbers to deal with non commensurable criteria and compares two multicriteria optimization methods namely, TOPSIS and VIKOR. The results suggest that VIKOR method is the most applicable to make an objective state-ment about which image type is better suited to be used as password. The paper also discusses some improvements that could be done to improve the ranking assessment.
Original languageEnglish
Title of host publicationHuman Aspects of Information Security, Privacy, and Trust
Subtitle of host publicationFirst International Conference, HAS 2013, Held as Part of HCI International 2013, Las Vegas, NV, USA, July 21-26, 2013. Proceedings
EditorsLouis Marinos, Ioannis Askoxylakis
Place of PublicationBerlin (DE)
PublisherSpringer
Pages13-22
Number of pages10
ISBN (Electronic)978-3-642-39345-7
ISBN (Print)978-3-642-39344-0
DOIs
Publication statusPublished - 2013
Event1st International Conference on Human Aspects of Information Security, Privacy, and Trust: held as Part of HCI International 2013 - Las Vegas, NV, United States
Duration: 21 Jul 201326 Jul 2013

Conference

Conference1st International Conference on Human Aspects of Information Security, Privacy, and Trust
Abbreviated titleHAS 2013
CountryUnited States
CityLas Vegas, NV
Period21/07/1326/07/13

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