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Captcha as Graphical Passwords - A New Security Primitive Based on Hard AI Problems.
Bin B. Zhu
Jeff Yan
Guanbo Bao
Maowei Yang
Ning Xu
Published in:
IEEE Trans. Inf. Forensics Secur. (2014)
Keyphrases
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artificial intelligence
expert systems
knowledge representation
case based reasoning
information security
feature selection
smart card
security policies