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Ahmad S. El Ahmad
Ahmad S. El Ahmad
PhD Computer Science, Newcastle University
Verified email at ncl.ac.uk - Homepage
Title
Cited by
Cited by
Year
A Low-cost Attack on a Microsoft CAPTCHA
J Yan, AS El Ahmad
Proceedings of the 15th ACM conference on Computer and communications …, 2008
5742008
Usability of CAPTCHAs or usability issues in CAPTCHA design
J Yan, AS El Ahmad
Proceedings of the 4th symposium on Usable privacy and security, 44-52, 2008
4262008
Breaking visual captchas with naive pattern recognition algorithms
J Yan, AS El Ahmad
Twenty-Third annual computer security applications conference (ACSAC 2007 …, 2007
3712007
The robustness of a new CAPTCHA
AS El Ahmad, J Yan, L Marshall
Proceedings of the third european workshop on system security, 36-41, 2010
1042010
CAPTCHA design: Color, usability, and security
AS El Ahmad, J Yan, WY Ng
IEEE Internet Computing 16 (2), 44-51, 2011
862011
Captcha security: A case study
J Yan, AS El Ahmad
IEEE Security & Privacy 7 (4), 22-28, 2009
672009
Captcha robustness: A security engineering perspective
J Yan, AS El Ahmad
Computer 44 (2), 54-60, 2010
572010
The robustness of Google CAPTCHA's
AS El Ahmad, J Yan, M Tayara
Computing Science, Newcastle University, 2011
452011
The robustness of google captchas
ASE Ahmad, J Yan, M Tayara
Bericht, Newcastle University, 2011
272011
Is cheap labour behind the scene?-Low-cost automated attacks on Yahoo CAPTCHAs
J Yan, E Salah, A Ahmad
School of Computing Science Technical Report Series, 2008
202008
Colour, usability and security: a case study
AS El Ahmad, J Yan
Computer Science, Newcastle University, 2010
92010
The Robustness of CAPTCHAs: A Security Engineering Perspective
J Yan, A El
School of Computing Science Technical Report Series, 2009
42009
The robustness of text CAPTCHAs
A Salah El Ahmad
University of Newcastle Upon Tyne, 2012
12012
The robustness of google captchas
A El, J Yan, M Tayara
School of Computing Science Technical Report Series, 2011
12011
The robustness of a new CAPTCHA
E Salah, A Ahmad, J Yan, L Marshall
Proceedings of the third European Workshop on System Security (EUROSEC), 2010
2010
Colour, usability and security: a case study
A El, J Yan
School of Computing Science Technical Report Series, 2010
2010
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