| Presentation | 2012/5/3 A Proposal of a CAPTCHA Using a Japanese Character, a Set of Kanji and an Alphanumeric Character KAZUKI KANAMORI, EIICHIRO KODAMA, JIAHONG WANG, TOYOO TAKATA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently, on free Web mail services and other kinds of service on Web, such DoS attacks as creating numerous accounts illegally using BOT have been occurring on a regular basis. For solving the problem, CAPTCHA systems, which require users to read and input some alphanumeric characters hiding in images shown on screens, have been widely used. The problem is that, however, alphanumeric characters have become more and more difficult to understand since modern CAPTCHA systems have to use more sophisticated images to avoid the BOT-based OCR. In this paper, we propose a new CAPTCHA that uses Japanese characters, Japanese compound words, and alphanumeric characters to solve the problem. Experimental results of a performance study shown that, introducing the Japanese compound words could really improve the availability of CAPTCHAs. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | |
| Paper # | Vol.2012-CSEC-57 No.19,Vol.2012-IOT17 No.19 |
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| Conference Information | |
| Committee | ICM |
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| Conference Date | 2012/5/3(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Information and Communication Management(ICM) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Proposal of a CAPTCHA Using a Japanese Character, a Set of Kanji and an Alphanumeric Character |
| Sub Title (in English) | |
| Keyword(1) | |
| 1st Author's Name | KAZUKI KANAMORI |
| 1st Author's Affiliation | Graduate School of Iwate Prefectural University() |
| 2nd Author's Name | EIICHIRO KODAMA |
| 2nd Author's Affiliation | Graduate School of Iwate Prefectural University |
| 3rd Author's Name | JIAHONG WANG |
| 3rd Author's Affiliation | Graduate School of Iwate Prefectural University |
| 4th Author's Name | TOYOO TAKATA |
| 4th Author's Affiliation | Graduate School of Iwate Prefectural University |
| Date | 2012/5/3 |
| Paper # | Vol.2012-CSEC-57 No.19,Vol.2012-IOT17 No.19 |
| Volume (vol) | vol.112 |
| Number (no) | 22 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |