Shoulder surfing defence for recall-based graphical passwords

Zakaria, N. H., Griffiths, D., Brostoff, S. & Yan, J., 2011, SOUPS 2011 - Proceedings of the 7th Symposium on Usable Privacy and Security. New York: ACM, 6

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System security research at Newcastle

Yan, J., 2011, Proceedings - 1st SysSec Workshop, SysSec 2011. IEEE, p. 94-95 2 p. 6092774

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Attacks and design of image recognition CAPTCHAs

Zhu, B. B., Yan, J., Li, Q., Yang, C., Liu, J., Xu, N., Yi, M. & Cai, K., 2010, CCS '10 Proceedings of the 17th ACM conference on Computer and communications security. New York: ACM, p. 187-200 14 p.

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Collusion detection in online bridge

Yan, J., 2010, Proceedings of the Twenty-Fourth AAAI Conference on Artificial Intelligence and the Twenty-Second Innovative Applications of Artificial Intelligence Conference : 11-15 July 2010, Atlanta, Georgia, USA.. Menlo Park, Calif.: AAAI, p. 1510-1515 6 p. (Artificial Intelligence).

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The robustness of a new CAPTCHA

El, A. S., Yan, J. & Marshall, L., 2010, Proceedings of the 3rd European Workshop on System Security, EUROSEC'10. New York: ACM, p. 36-41 6 p.

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Bot, cyborg and automated turing test: (or "putting the humanoid in the protocol")

Yan, J., 2009, Security protocols: 14th International Workshop, Cambridge, UK, March 27-29, 2006, Revised Selected Papers. Christianson, B., Crispo, B., Malcolm, J. A. & Roe, M. (eds.). Berlin: Springer Verlag, p. 190-197 8 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 5087 ).

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Magic Bullet: a dual-purpose computer game

Yan, J. & Yu, S., 2009, HCOMP '09 Proceedings of the ACM SIGKDD Workshop on Human Computation. New York: ACM, p. 32-33 2 p. 1600161

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Streamlining attacks on CAPTCHAs with a computer game

Yan, J. & Yu, S. Y., 2009, IJCAI--09, proceedings of the Tweny-First International Joint Conference on Artificial Intelligence: Pasadena, California, USA, 11-17 July 2009. Menlo Park, Calif.: AAAI, p. 2095-2100 6 p.

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A low-cost attack on a Microsoft captcha

Yan, J. & El Ahmad, A. S., 2008, Proceedings of the 15th ACM conference on Computer and communications security - CCS '08. New York: ACM, p. 543-554 12 p.

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Usability of CAPTCHAs or usability issues in CAPTCHA design

Yan, J. & El Ahmad, A. S., 2008, SOUPS 2008 - Proceedings of the 4th Symposium on Usable Privacy and Security. New York: ACM, p. 44-52 9 p.

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Breaking visual CAPTCHAs with naive pattern recognition algorithms

Yan, J. & El Ahmad, A. S., 12/2007, Twenty-Third Annual Computer Security Applications Conference (ACSAC 2007). IEEE, p. 279-291 13 p.

Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Chapter

Do background images improve "draw a secret" graphical passwords?

Dunphy, P. & Yan, J., 2007, CCS '07 Proceedings of the 14th ACM conference on Computer and communications security - CCS '07. New York: ACM, p. 36-47 12 p.

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Graphical passwords and qualitative spatial relations

Lin, D., Dunphy, P., Olivier, P. & Yan, J., 2007, SOUPS '07 Proceedings of the 3rd symposium on Usable privacy and security. New York: ACM, p. 161-162 2 p.

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Is FacePIN secure and usable?

Dunphy, P. & Yan, J., 2007, SOUPS '07 Proceedings of the 3rd Symposium on Usable Privacy and Security. New York: ACM, p. 165-166 2 p.

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Detecting cheaters for multiplayer games: theory, design and implementation

Yeung, S. F., Lui, J. C. S., Liu, J. & Yan, J., 2006, 2006 3rd IEEE Consumer Communications and Networking Conference, CCNC 2006. IEEE, p. 1178-1182 5 p.

Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Chapter

Enhancing collaborative spam detection with bloom filters

Yan, J. & Cho, P. L., 2006, Computer Security Applications Conference, 2006. ACSAC '06. 22nd Annual. IEEE, p. 414-428 15 p. 4041186

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A systematic classification of cheating in online games

Yan, J. & Randell, B., 2005, NetGames '05 Proceedings of 4th ACM SIGCOMM workshop on Network and system support for games. New York: ACM, p. 1-9 9 p.

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A note on proactive password checking

Yan, J., 2001, New Security Paradigms Workshop: proceedings : September 10th-13th, 2001, Cloudcroft, NM, USA . New York: ACM, p. 127-135 9 p. (Proceedings of the 2001 New Security Paradigms Workshop).

Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review