More Human Participation Chinese Character CAPTCHA: Generating Strong Text-Based CAPTCHA Based on Adding More Human Participation
Yang Chen, Yi Chun Zhang · Applied Mechanics and Materials · 2012
Many websites use CAPTCHAs ("Completely Automated Public Turing tests to tell Computers and Humans Apart") in an attempt to block automated interactions with their sites. However, widely deployed schemes can be broken with simple but novel attacks. As safety problem has always been very important, in order to meet safety requirements, we through reading many related articles and finding the existing problem of the CAPTCHA. To solve these problems, we developed a new chinese character scheme adding more human participation. This new scheme can increase the robustness of CAPTCHA and effectively prevent the automatic program attacks.