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Thai CAPTCHA : Construction and Analysis |
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| รหัสดีโอไอ | |
| Creator | เกษรินทร์ ชาวเกวียน |
| Title | Thai CAPTCHA : Construction and Analysis |
| Contributor | วรพล ลีลาเกียรติสกุล |
| Publisher | Faculty of Information Science and Technology, Mahanakorn University of Technology |
| Publication Year | 2554 |
| Journal Title | Journal of Information Science and Technology |
| Journal Vol. | 2 |
| Journal No. | 2 |
| Page no. | 56-64 |
| Keyword | CAPTCHA, Bot |
| URL Website | https://tci-thaijo.org/index.php/JIST |
| Website title | Journal of Information Science and Technology |
| ISSN | 2651-1053 |
| Abstract | Currently, there are many websites that allow users to upload information to their servers such as member registration forms, webboard and etc. These websites are targeted by bots to create bogus information, i.e. sales or fake member registration, manipulated by bot-master. By surveying, we found that bots attacking on several websites always come from places outside Thailand. We therefore propose the new technique to construct CAPTCHA by using Thai characters to distinguish users that know Thai language from bot-machines. In addition, simple mathematic functions and background noise are inserted to enhance efficiency. We also analyze the results from Thai OCR which is named Arnthai to define properties of proposed Thai CAPTCHA more efficiently. |
