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SACMAT
2006
ACM
15 years 7 months ago
The secondary and approximate authorization model and its application to Bell-LaPadula policies
We introduce the concept, model, and policy-specific algorithms for inferring new access control decisions from previous ones. Our secondary and approximate authorization model (...
Jason Crampton, Wing Leung, Konstantin Beznosov
106
Voted
ASM
2004
ASM
15 years 7 months ago
Observations on the Decidability of Transitions
Consider a multiple-agent transition system such that, for some basic types T1, . . . , Tn, the state of any agent can be represented as an element of the Cartesian product T1 ×·...
Yuri Gurevich, Rostislav Yavorskiy
WCNC
2008
IEEE
15 years 8 months ago
Three-Stage Serially Concatenated Codes and Iterative Center-Shifting K-Best Sphere Detection for SDM-OFDM: An EXIT Chart Aided
—Iterative K-best sphere detection (SD) and channel decoding is appealing, since it is capable of achieving a nearmaximum-a-posteriori (MAP) performance at a low complexity. Howe...
Li Wang, Lei Xu, Sheng Chen, Lajos Hanzo
NSPW
2004
ACM
15 years 7 months ago
Support for multi-level security policies in DRM architectures
Digital rights management systems allow copyrighted content to be commercialized in digital format without the risk of revenue loss due to piracy. Making such systems secure is no...
Bogdan C. Popescu, Bruno Crispo, Andrew S. Tanenba...
CCS
2006
ACM
15 years 5 months ago
Resiliency policies in access control
We introduce the notion of resiliency policies in the context of access control systems. Such policies require an access control system to be resilient to the absence of users. An...
Ninghui Li, Mahesh V. Tripunitara, Qihua Wang
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