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CCS
2010
ACM
13 years 7 months ago
2010
ACM
We systematically study the design of image recognition CAPTCHAs (IRCs) in this paper. We first review and examine all IRCs schemes known to us and evaluate each scheme against th...
CCS
2011
ACM
12 years 7 months ago
2011
ACM
Browser designers create security mechanisms to help web developers protect web applications, but web developers are usually slow to use these features in web-based applications (...
CCS
2010
ACM
14 years 2 months ago
2010
ACM
Digital identity and trust management mechanisms play an important role on the Internet. They help users make decisions on trustworthiness of digital identities in online communit...
SRDS
2007
IEEE
14 years 1 months ago
2007
IEEE
The increasing complexity and dynamics of grid environments have posed great challenges for secure and privacy-preserving collaboration in a virtual organization. In this paper, w...
ISI
2006
Springer
13 years 7 months ago
2006
Springer
It is quite consensual that police patrolling can be regarded as one of the best well-known practices for implementing public-safety preventive policies towards the combat of an as...