370 search results - page 15 / 74 » Providing Dynamic Security Control in a Federated Database |
IWFM
2000
14 years 11 months ago
2000
Security services in a multi-user environment are often based on access control mechanisms. Static of an access control policy can be formalised using abstract algebraic models. W...
PDCAT
2005
Springer
15 years 3 months ago
2005
Springer
In this paper, we propose a security management middleware in ubiquitous computing environments. This security management should be applicationoriented security and provides user-...
78
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VLDB
1998
ACM
15 years 1 months ago
1998
ACM
The design of secure buffer managers for database systems supporting real-time applications with firm deadlines is studied here. We first identify the design challenges and then p...
101
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CCS
2008
ACM
14 years 11 months ago
2008
ACM
We propose an approach for the selective enforcement of access control restrictions in, possibly distributed, large data collections based on two basic concepts: i) flexible autho...
DEXA
2003
Springer
15 years 2 months ago
2003
Springer
Abstract. Access control policies are security policies that govern access to resources. Real-time update of access control policies, that is, updating policies while they are in e...