619 search results - page 72 / 124 » Learning with Security |
CCS
2010
ACM
13 years 9 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...
CORR
2008
Springer
13 years 9 months ago
2008
Springer
Equivocation has been widely used as a measure of security after Shannon[10]. For an infinite system such as the wiretap channel defined in [2], equivocation is unbounded and so e...
ASIACRYPT
2009
Springer
14 years 3 months ago
2009
Springer
Abstract. We describe a public-key encryption scheme based on lattices — specifically, based on the hardness of the learning with error (LWE) problem — that is secure against ...
ICETE
2004
13 years 10 months ago
2004
ser provides abstraction for supporting flexible security policies that can be developed using the low-level primitives of the browser. We believe our browser architecture will be ...
CCS
2005
ACM
14 years 2 months ago
2005
ACM
We present a formal model and a simple architecture for robust pseudorandom generation that ensures resilience in the face of an observer with partial knowledge/control of the gen...