Title : 
An Improved CAPTCHA Based on Chinese Characters
         
        
        
            Author_Institution : 
Dept. of Comput., Wuhan Polytech., Wuhan, China
         
        
        
        
        
        
            Abstract : 
CAPTCHA is a means to improve to elevate the safety of web-site. Because many web-sites use English or number characters CAPTCHA and only adopt straightforward deformation, they´re lack of unfailing safety. Therefore, a improved multi-deformation Chinese ideograph CAPTCHA is designed and implemented in this paper. Experiments have proved that it´s safer and also easy for using.
         
        
            Keywords : 
Web sites; security of data; Chinese characters; English characters; Web site safety; completely automated public Turing test to tell computers and humans apart; improved CAPTCHA; multideformation Chinese ideograph CAPTCHA; number characters; Algorithm design and analysis; CAPTCHAs; Character recognition; Computers; Noise; Security; Software; CAPTCHA; auto-attack; multi-transfigure feature;
         
        
        
        
            Conference_Titel : 
Computer Sciences and Applications (CSA), 2013 International Conference on
         
        
            Conference_Location : 
Wuhan
         
        
        
            DOI : 
10.1109/CSA.2013.53