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» Managing Privacy in LBAC Systems
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CCS
2008
ACM
13 years 9 months ago
A security architecture for transient trust
In extraordinary situations, certain individuals may require access to information for which they are not normally authorized. For example, to facilitate rescue of people trapped ...
Cynthia E. Irvine, Timothy E. Levin, Paul C. Clark...
CCS
2010
ACM
13 years 7 months ago
Attacks and design of image recognition CAPTCHAs
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...
Bin B. Zhu, Jeff Yan, Qiujie Li, Chao Yang, Jia Li...
SAC
2006
ACM
14 years 1 months ago
Privacy-preserving SVM using nonlinear kernels on horizontally partitioned data
Traditional Data Mining and Knowledge Discovery algorithms assume free access to data, either at a centralized location or in federated form. Increasingly, privacy and security co...
Hwanjo Yu, Xiaoqian Jiang, Jaideep Vaidya
CCGRID
2010
IEEE
13 years 8 months ago
Elastic Site: Using Clouds to Elastically Extend Site Resources
Infrastructure-as-a-Service (IaaS) cloud computing offers new possibilities to scientific communities. One of the most significant is the ability to elastically provision and relin...
Paul Marshall, Kate Keahey, Timothy Freeman
MOBISYS
2009
ACM
14 years 8 months ago
xShare: supporting impromptu sharing of mobile phones
Loaded with personal data, e.g. photos, contacts, and call history, mobile phones are truly personal devices. Yet it is often necessary or desirable to share our phones with other...
Yunxin Liu, Ahmad Rahmati, Yuanhe Huang, Hyukjae J...