708 search results - page 77 / 142 » A Policy Based Framework for Access Control |
180
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JSAC
2008
15 years 4 months ago
2008
We propose the cross-layer based opportunistic multi-channel medium access control (MAC) protocols, which integrate the spectrum sensing at physical (PHY) layer with the packet sch...
166
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ICST
2009
IEEE
15 years 11 months ago
2009
IEEE
In this paper, we consider typical applications in which the business logic is separated from the access control logic, implemented in an independent component, called the Policy ...
136
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CCS
2000
ACM
15 years 8 months ago
2000
ACM
This paper describes a security model for mobile agent based systems. The model defines the notion of a security-enhanced agent and outlines security management components in agen...
195
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VTC
2008
IEEE
15 years 10 months ago
2008
IEEE
This paper considers a scenario in which a secondary user makes opportunistic use of a channel allocated to some primary network. The primary network operates in a time-slotted ma...
132
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ICDE
2007
IEEE
15 years 10 months ago
2007
IEEE
Separation of duties (SoD) is a key security requirement for many business and information systems. Role Based Access Controls (RBAC) is a relatively new paradigm for protecting i...