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173
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TON
2012
13 years 8 months ago
2012
—Cognitive Radio (CR) technology has great potential to alleviate spectrum scarcity in wireless communications. It allows secondary users (SUs) to opportunistically access spectr...
198
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CCS
2005
ACM
15 years 11 months ago
2005
ACM
This paper introduces the PeerAccess framework for reasoning about authorization in open distributed systems, and shows how a parameterization of the framework can be used to reas...
127
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PERCOM
2005
ACM
16 years 5 months ago
2005
ACM
There is a recent trend toward rule-based authorization systems to achieve flexible security policies. Also, new sensing technologies in pervasive computing make it possible to de...
157
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ACSAC
2002
IEEE
15 years 11 months ago
2002
IEEE
We describe an approach to building security services for context-aware environments. Specifically, we focus on the design of security services that incorporate the use of securi...
151
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SACMAT
2006
ACM
16 years 4 days ago
2006
ACM
Separation of Duty (SoD) is widely recognized to be a fundamental principle in computer security. A Static SoD (SSoD) policy states that in order to have all permissions necessary...