DDIM-CAPTCHA: A Novel Drag-n-Drop Interactive Masking CAPTCHA against the Third Party Human Attacks

@article{Ye2013DDIMCAPTCHAAN,
  title={DDIM-CAPTCHA: A Novel Drag-n-Drop Interactive Masking CAPTCHA against the Third Party Human Attacks},
  author={Quan-Bin Ye and Te-En Wei and Albert B. Jeng and Hahn-Ming Lee and Kuo-Ping Wu},
  journal={2013 Conference on Technologies and Applications of Artificial Intelligence},
  year={2013},
  pages={158-163}
}
A CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) is a security mechanism that can be used to distinguish between humans and machines. Most existing CAPTCHA systems are vulnerable against a so-called "third party human attack." The third party human attack employs hired human to solve challenges so that the CAPTCHA systems will no longer be effective. In this paper, we design an efficient and effective aspect to defend the attack. Following the aspect, we… CONTINUE READING

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An enhanced image recognition captcha applicable to cloud computing authentication

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