CAPTCHA

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== References ==
== References ==
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# Carnegie Mellon University. 2009. [http://recaptcha.net/captcha.html What is a CAPTCHA?].
# Luis von Ahn, Ben Maurer, Colin McMillen, David Abraham and Manuel Blum. 2008. [http://www.cs.cmu.edu/~biglou/reCAPTCHA_Science.pdf reCAPTCHA: Human-Based Character Recognition via Web Security Measures]. In ''Science''.
# Luis von Ahn, Ben Maurer, Colin McMillen, David Abraham and Manuel Blum. 2008. [http://www.cs.cmu.edu/~biglou/reCAPTCHA_Science.pdf reCAPTCHA: Human-Based Character Recognition via Web Security Measures]. In ''Science''.
# Luis von Ahn, Manuel Blum, Nicholas Hopper, and John Langford. [http://www.captcha.net/captcha_crypt.pdf CAPTCHA: Using Hard AI Problems for Security]. In ''Eurocrypt''.
# Luis von Ahn, Manuel Blum, Nicholas Hopper, and John Langford. [http://www.captcha.net/captcha_crypt.pdf CAPTCHA: Using Hard AI Problems for Security]. In ''Eurocrypt''.
# Luis von Ahn, Manuel Blum and John Langford. 2004. [http://www.captcha.net/captcha_cacm.pdf Telling Humans and Computers Apart Automatically]. In ''Communications of the ACM''.
# Luis von Ahn, Manuel Blum and John Langford. 2004. [http://www.captcha.net/captcha_cacm.pdf Telling Humans and Computers Apart Automatically]. In ''Communications of the ACM''.
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# Carnegie Mellon University. 2009. [http://recaptcha.net/captcha.html What is a CAPTCHA?].
 
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# Willis, John M. 2008. [http://www.johnmwillis.com/other/top-10-worst-captchas/ Top 10 Worst Captchas].
 
# W3C. 2005. [http://www.w3.org/TR/turingtest/ Inaccessibility of CAPTCHA].
# W3C. 2005. [http://www.w3.org/TR/turingtest/ Inaccessibility of CAPTCHA].
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# Willis, John M. 2008. [http://www.johnmwillis.com/other/top-10-worst-captchas/ Top 10 Worst Captchas].

Revision as of 14:03, 6 April 2009

Image:Sin_captcha.jpg

References

  1. Carnegie Mellon University. 2009. What is a CAPTCHA?.
  2. Luis von Ahn, Ben Maurer, Colin McMillen, David Abraham and Manuel Blum. 2008. reCAPTCHA: Human-Based Character Recognition via Web Security Measures. In Science.
  3. Luis von Ahn, Manuel Blum, Nicholas Hopper, and John Langford. CAPTCHA: Using Hard AI Problems for Security. In Eurocrypt.
  4. Luis von Ahn, Manuel Blum and John Langford. 2004. Telling Humans and Computers Apart Automatically. In Communications of the ACM.
  5. W3C. 2005. Inaccessibility of CAPTCHA.
  6. Willis, John M. 2008. Top 10 Worst Captchas.
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