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» CAPTCHAs: The Good, the Bad, and the Ugly
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SICHERHEIT
2010
11 years 3 months ago
CAPTCHAs: The Good, the Bad, and the Ugly
A CAPTCHA is a program that generates challenges that are easy to solve for humans but difficult to solve for computers. The most common CAPTCHAs today are text-based ones where a ...
Paul Baecher, Marc Fischlin, Lior Gordon, Robert L...
RV
2007
Springer
100views Hardware» more  RV 2007»
11 years 11 months ago
The Good, the Bad, and the Ugly, But How Ugly Is Ugly?
When monitoring a system wrt. a property defined in some temporal logic, e. g., LTL, a major concern is to settle with an adequate interpretation of observable system events; that...
Andreas Bauer 0002, Martin Leucker, Christian Scha...
EUROCRYPT
2007
Springer
11 years 11 months ago
Range Extension for Weak PRFs; The Good, the Bad, and the Ugly
We investigate a general class of (black-box) constructions for range extension of weak pseudorandom functions: a construction based on m independent functions F1, . . . , Fm is gi...
Krzysztof Pietrzak, Johan Sjödin
CORR
2008
Springer
76views Education» more  CORR 2008»
11 years 5 months ago
The Good, the Bad, and the Ugly: three different approaches to break their watermarking system
The Good is Blondie, a wandering gunman with a strong personal sense of honor. The Bad is Angel Eyes, a sadistic hitman who always hits his mark. The Ugly is Tuco, a Mexican bandi...
Gaëtan Le Guelvouit, Teddy Furon, Franç...
ACSAC
2009
IEEE
12 years 5 days ago
The Good, the Bad, And the Ugly: Stepping on the Security Scale
: Metrics are both fashionable and timely: many regulations that affect cybersecurity rely upon metrics – albeit, of the checklist variety in many cases – to ascertain complian...
Mary Ann Davidson
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