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A shoulder-surfing resistant graphical password system
Linköping University, Department of Computer and Information Science.
Linköping University, Department of Computer and Information Science.
2017 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

The focus of this report is to discuss graphical password systems and how they can contribute to handle security problems that threaten authentication processes. One such threat is shoulder-surfing attacks, which are also reviewed in this report. Three already existing systems that are claimed to be shoulder-surfing resilient are described and a new proposed system is presented and evaluated through a user study. Moreover, the system is compared to the mentioned existing systems to further evaluate the usability, memorability and the time it takes to authenticate. The user study shows that test subjects are able to remember their chosen password one week after having registered and signed in once. It is also shown that the average time to sign in to the system after five minutes of practice is within a range of 3.30 to 5.70 seconds. The participants in the experiments gave the system an average score above 68 on the System Usability Scale, which is the score of an average system.

Place, publisher, year, edition, pages
2017. , 33 p.
Keyword [en]
shoulder-surfing, resistant, graphical password system, guessing attacks, graphical passwords, recognition-based, recall-based, pure recall-based, password, security, password space, pictorial superiority effect, brute-force attack, dictionary attack, hot-spots, memorability, graphical components, authentication
National Category
Computer Science
Identifiers
URN: urn:nbn:se:liu:diva-138163ISRN: LIU-IDA/LITH-EX-G--17/061--SEOAI: oai:DiVA.org:liu-138163DiVA: diva2:1108259
Subject / course
Information Technology
Presentation
2017-05-31, Donald Knuth, Linköpings Universitet, Linköping, 08:15 (Swedish)
Supervisors
Examiners
Available from: 2017-06-14 Created: 2017-06-12 Last updated: 2017-06-14Bibliographically approved

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf