438 search results - page 12 / 88 » Activity-based Access Control Model to Hospital Information |
ASWC
2006
Springer
13 years 9 months ago
2006
Springer
Abstract. We propose a conceptual model for semantic search and implement it in security access control. The model provides security access control to extend the search capabilitie...
ISW
2005
Springer
14 years 27 days ago
2005
Springer
We present a model-checking algorithm which can be used to evaluate access control policies, and a tool which implements it. The evaluation includes not only assessing whether the ...
ISW
2004
Springer
14 years 22 days ago
2004
Springer
We present a model of access control which provides fine-grained data-dependent control, can express permissions about permissions, can express delegation, and can describe syste...
CCS
2004
ACM
14 years 24 days ago
2004
ACM
Comparing the expressive power of access control models is recognized as a fundamental problem in computer security. Such comparisons are generally based on simulations between di...
SACMAT
2003
ACM
14 years 19 days ago
2003
ACM
The focus of access control in client/server environments is on protecting sensitive server resources by determining whether or not a client is authorized to access those resource...