Research on security model with Chinese CAPTCHA
Sha Li-min · Jisuanji gongcheng yu sheji · 2006
With more and more web bots crawling on internet like a human,security of web sites are more serious than before.CAP-TCHA,an automated test that humans can pass,but current computer programs can't pass: Any program that has high success over a CAPTCHA was used to solve an unsolved artificial intelligence(AI) problem.Since CAPTCHAs have many applications in practical security,several novel constructionsofCAPTCHAs are introduced.And,theirprinciple,practicing model,advantage and disadvantage are described.Herewith the security of Chinese websites,based on Chinese character identification CAPTCHA model is constructed.Detail policy in programming and realizing Chinese CAPTCHA is introduced.