Issue No.01 - January/February (2008 vol.6)
Aleksey Kolupaev , OCR Research Team
Juriy Ogijenko , OCR Research Team
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/MSP.2008.6
A close examination of CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) use and the technology behind it.
Completely Automated Public Turing test to tell Computers and Humans Apart, CAPTCHA, optional character recognition, cryptography, Crypto Corner
Aleksey Kolupaev, Juriy Ogijenko, "CAPTCHAs: Humans vs. Bots", IEEE Security & Privacy, vol.6, no. 1, pp. 68-70, January/February 2008, doi:10.1109/MSP.2008.6