The AI hardness of CAPTCHAs does not imply robust network security

IFIP International Federation for Information Processing

Volumn 238, Issue , 2007, Pages 367-382

  Caine, Allan ^a   Hengartner, Urs ^a  

^a UNIVERSITY OF WATERLOO   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

ELECTRONIC MAIL FILTERS; INTERNET; INTERNET PROTOCOLS; NETWORK ARCHITECTURE; WEBSITES;

CAPTCHAS; DISTRIBUTED ARCHITECTURE;

NETWORK SECURITY;

EID: 36649031010     PISSN: 15715736     EISSN: None     Source Type: Book Series    
DOI: 10.1007/978-0-387-73655-6_24     Document Type: Conference Paper

References (14)

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3. Minnesota Twins Major League Baseball: Minnesota twins electronic ticketing, http://minnesota.twins.mlb.com/ (2007)
4. Krawczyk, H., Bellare, M., Canetti, R.: HMAC: Keyed-hashing for message authentication. Internet RFC 2104 (1997)
5. Lewis, J.P.: Fast template matching. Vision Interface (1995) 120-123
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7. Caine, A., Hengartner, U.: Implementation of proposed protocol, http://www.cs.uwaterloo.ca/~adcaine/php/wrapper.html (2007)
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12. Mori, G., Malik, J.: Recognizing objects in adversarial clutter: Breaking a visual CAPTCHA. In: CVPR. Volume 1. (2003) 134-141
13. Doctorow, C: Solving and creating captchas with free porn, http://boingboing.net/2004/01/27/solving_and_creating.html (2004)
14. von Ahn, L., Blum, M., Hopper, N., Langford, J.: CAPTCHA: Using hard AI problems for security. Eurocrypt (2003)