[SSK+12]
Emmanouela Stachtiari, Yannis Soupionis, Panagiotis Katsaros, Anakreontas Mentis and Dimitris Gritzalis.
Probabilistic model checking of CAPTCHA admission control for DoS resistant anti-SPIT protection.
In Proc. 7th International Conference on Critical Information Infrastructures Security (CRITIS'12).
2012.
[Studies the effectiveness of admission control policies for DoS-resistanct CAPTCHA schemes using probabilistic model checking and PRISM.]
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