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» Secure Computation with Fixed-Point Numbers
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143
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SACMAT
2010
ACM
15 years 1 months ago
Enforcing spatial constraints for mobile RBAC systems
Proposed models for spatially-aware extensions of role-based access control (RBAC) combine the administrative and security advantages of RBAC with the dynamic nature of mobile and...
Michael S. Kirkpatrick, Elisa Bertino
120
Voted
CHI
2008
ACM
16 years 3 months ago
Undercover: authentication usable in front of prying eyes
A number of recent scams and security attacks (phishing, spyware, fake terminals, ...) hinge on a crook's ability to observe user behavior. In this paper, we describe the des...
Hirokazu Sasamoto, Nicolas Christin, Eiji Hayashi
115
Voted
MOBIHOC
2008
ACM
16 years 2 months ago
Self-monitoring for sensor networks
Local monitoring is an effective mechanism for the security of wireless sensor networks (WSNs). Existing schemes assume the existence of sufficient number of active nodes to carry...
Dezun Dong, Yunhao Liu, Xiangke Liao
101
Voted
CCS
2009
ACM
15 years 9 months ago
Membership-concealing overlay networks
We introduce the concept of membership-concealing overlay networks (MCONs), which hide the real-world identities of participants. We argue that while membership concealment is ort...
Eugene Y. Vasserman, Rob Jansen, James Tyra, Nicho...
103
Voted
CCS
2007
ACM
15 years 9 months ago
Beamauth: two-factor web authentication with a bookmark
We propose BeamAuth, a two-factor web authentication technique where the second factor is a specially crafted bookmark. BeamAuth presents two interesting features: (1) only server...
Ben Adida