Security and Efficiency Improvement for Web Captcha Scheme
碩士 === 東吳大學 === 資訊管理學系 === 100 === Web CAPTCHA was first used to distinguish the user is human or robot by DEC Systems Research Center in 1997. Today's Web CAPTCHA is vulnerable to OCR, and its excessive distortions make difficult to identify; Frequent web connection of server-side Web CPATCHA...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2011
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| Online Access: | http://ndltd.ncl.edu.tw/handle/05396535149051498116 |