195 search results - page 30 / 39 » Security and Privacy Using One-Round Zero-Knowledge Proofs |
SOUPS
2009
ACM
15 years 6 months ago
2009
ACM
We present a technique for using content-based video labeling as a CAPTCHA task. Our CAPTCHAs are generated from YouTube videos, which contain labels (tags) supplied by the person...
ACNS
2008
Springer
15 years 6 months ago
2008
Springer
In this paper, we present an analysis of the CCM mode of operations and of a slight variant. CCM is a simple and efficient encryption scheme which combines a CBC-MAC authentication...
CRYPTO
2008
Springer
15 years 1 months ago
2008
Springer
Prior approaches [15, 14] to building collusion-free protocols require exotic channels. By taking a conceptually new approach, we are able to use a more digitally-friendly communic...
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CCS
2008
ACM
15 years 1 months ago
2008
ACM
In this paper, we propose a general-purpose framework that harnesses the power of lightweight virtualization to track applications interactions in a scalable an efficient manner. ...
CCS
2006
ACM
15 years 3 months ago
2006
ACM
A high-level security policy states an overall requirement for a sensitive task. One example of a high-level security policy is a separation of duty policy, which requires a sensi...