| Presentation | 2008-07-25 Proposal of a Cue & Response Based User Authentication Using Unclear Image Takumi YAMAMOTO, Takeo ISARIDA, Masakatsu NISHIGAKI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have recently proposed an user authentication system using "unclear images" as pass-images, in which only the legitimate users can understand their meanings by viewing the original images corresponding to the unclear pass-images. These unclear images are meaningless for unauthorized users. Hence it is difficult for unauthorized users to remember the unclear pass-images, even though they observe the legitimate users' authentication trial. In this paper we propose a new type of Challenge & Response based image authentication by using a feature of unclear image, which we call as "Cue & Response (Q & R) based image authentication". In this authentication, it is expected that even simple calculation of a response can achieve high robustness against observing attackers by hiding a challenge (cue) from unauthorized users. By doing this, only a legitimate user can respond to a randomly changing cue properly while unauthorized users are prevented from impersonating with limited amount of observing attacks. We conduct fundamental experiments to study the availability of the proposal Q & R image authentication system. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | image-based user authentication / unclear image / schema / observing attack / cue & response |
| Paper # | ISEC2008-51 |
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| Conference Information | |
| Committee | ISEC |
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| Conference Date | 2008/7/17(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Information Security (ISEC) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Proposal of a Cue & Response Based User Authentication Using Unclear Image |
| Sub Title (in English) | |
| Keyword(1) | image-based user authentication |
| Keyword(2) | unclear image |
| Keyword(3) | schema |
| Keyword(4) | observing attack |
| Keyword(5) | cue & response |
| 1st Author's Name | Takumi YAMAMOTO |
| 1st Author's Affiliation | Graduate School of Science and Technology, Shizuoka University:Research Fellow of the Japan Society for the Promotion of Science() |
| 2nd Author's Name | Takeo ISARIDA |
| 2nd Author's Affiliation | Faculty of Informatics, Shizuoka University |
| 3rd Author's Name | Masakatsu NISHIGAKI |
| 3rd Author's Affiliation | Graduate School of Science and Technology, Shizuoka University:Japan Science Technology and Agency, CREST |
| Date | 2008-07-25 |
| Paper # | ISEC2008-51 |
| Volume (vol) | vol.108 |
| Number (no) | 162 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |