1611 search results - page 52 / 323 » An Access Control Model for Video Database Systems |
ENTCS
2007
14 years 9 months ago
2007
In this paper we propose a formalization of access control policies based on term rewriting. The state of the system to which policies are enforced is represented as an algebraic ...
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IS
2000
14 years 9 months ago
2000
Abstract With the rapid advances in mobile computing technology, there is an increasing demand for processing realtime transactions in a mobile environment. This paper studies con...
INFOCOM
2008
IEEE
15 years 4 months ago
2008
IEEE
Abstract. One important problem for such public broadcast LBS is to enforce access control on a large number of subscribers. In such a system a user typically subscribes to a LBS f...
JHSN
2006
14 years 9 months ago
2006
We present a refined model for Role Based Access Control policies and define a risk measure for the model, which expresses elements of the operational, combinatorial and conflict ...
CIKM
2005
Springer
15 years 3 months ago
2005
Springer
In multi-relational databases, a view, which is a context- and content-dependent subset of one or more tables (or other views), is often used to preserve privacy by hiding sensiti...