Influences of Human Cognition and Visual Behavior on Password Strength during Picture Password Composition

論文URL:http://dl.acm.org/citation.cfm?doid=3173574.3173661

論文アブストラクト:Visual attention, search, processing and comprehension are important cognitive tasks during a graphical password composition activity. Aiming to shed light on whether individual differences on visual behavior affect the strength of the created passwords, we conducted an eye-tracking study (N=36), and adopted an accredited cognitive style theory to interpret the results. The analysis revealed that users with different cognitive styles followed different patterns of visual behavior which affected the strength of the created passwords. Motivated, by the results of the first study, we introduced adaptive characteristics to the user authentication mechanism, aiming to assist specific cognitive style user groups to create more secure passwords, and conducted a second study with a new sample (N=40) to test the adaptive characteristics. Results strengthen our assumptions that adaptive mechanisms based on users' differences in cognitive and visual behavior uncover a new perspective for improving the password's strength within graphical user authentication realms.

日本語のまとめ:

場依存型・場独立型の認知の違いが,グラフィカルパスワードの強度に与える影響を調べた.場依存型は画像の複雑さによって強度は変わらないが,場独立型は複雑であるほうが強度が向上する.それらの結果をもとに画像提示を変えたら強度を向上できた.

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