Shoulder-surfing-proof graphical password authentication scheme |
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Authors: | Tzong-Sun Wu Ming-Lun Lee Han-Yu Lin Chao-Yuan Wang |
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Affiliation: | 1. Department of Computer Science and Engineering, National Taiwan Ocean University, 2, Pei-Ning Road, 202, Keelung, Taiwan, Republic of China
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Abstract: | The graphical password authentication scheme uses icons instead of text-based passwords to authenticate users. Icons might be somehow more familiar to human beings than text-based passwords, since it is hard to remember the latter with sufficient security strength. No matter what kind of password is used, there are always shoulder-surfing problems. An attacker can easily get text-based password or graphical password by observation, capturing a video or recording the login process. In this paper, we propose a shoulder-surfing-proof graphical password authentication scheme using the convex-hull graphical algorithm. We give evaluation and comparisons to demonstrate the security strength and the functionality advantages of our scheme. |
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