A CAPTCHA Mechanism By Exchanging Image Blocks
碩士 === 國立政治大學 === 資訊科學學系 === 95 === The need to tell human and machines apart has surged due to abuse of automated ‘bots’. However, several textual-image-based CAPTCHAs have been defeated recently. In this thesis, we propose a simple yet effective visual CAPTCHA test by exchanging the content of non...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Others |
| Language: | zh-TW |
| Published: |
2007
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| Online Access: | http://ndltd.ncl.edu.tw/handle/33915005235910806166 |
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