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Issue No. 02 - February (2011 vol. 44)
ISSN: 0018-9162
pp: 54-60
Jeff Yan , Newcastle Univ, Newcastle upon Tyne
Ahmad Salah El Ahmad , Newcastle University,
Captchas are a standard defense on commercial websites against undesirable or malicious Internet bot programs, but widely deployed schemes can be broken with simple but novel attacks. Applying security engineering expertise to the design of Captchas can significantly improve their robustness.
Captchas, Robustness, Segmentation, Internet security, Security engineering
Jeff Yan, Ahmad Salah El Ahmad, "Captcha Robustness: A Security Engineering Perspective", Computer, vol. 44, no. , pp. 54-60, February 2011, doi:10.1109/MC.2010.275
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