265 search results - page 20 / 53 » A role-based approach to access control for XML databases |
VLDB
2007
ACM
14 years 7 months ago
2007
ACM
Databases are increasingly being used to store information covered by heterogeneous policies, which require support for access control with great flexibility. This has led to incr...
PODS
2008
ACM
14 years 7 months ago
2008
ACM
We present a formal framework for capturing the provenance of data appearing in XQuery views of XML. Building on previous work on relations and their (positive) query languages, w...
SACMAT
2006
ACM
14 years 1 months ago
2006
ACM
In this paper we have addressed confidentiality and privacy for video surveillance databases. First we discussed our overall approach for suspicious event detection. Next we discu...
SDMW
2007
Springer
14 years 1 months ago
2007
Springer
Abstract. We investigate the experimental effectiveness of query rewriting over XML security views. Our model consists of access control policies specified over DTDs with XPath e...
SACMAT
2010
ACM
14 years 6 days ago
2010
ACM
We propose a new approach for applying Role-Based Access Control (RBAC) to methods in objects in the Java programming language. In our approach, a policy implementer (usually a de...