87 search results - page 3 / 18 » Preprocessing for controlled query evaluation with availabil... |
POLICY
2004
Springer
13 years 11 months ago
2004
Springer
We study the specification of access control policy in large-scale distributed systems. Our work on real-world policies has shown that standard policy idioms such as role hierarc...
PVLDB
2010
13 years 23 days ago
2010
Recent legislation has increased the requirements of organizations to report data breaches, or unauthorized access to data. While access control policies are used to restrict acce...
WWW
2007
ACM
14 years 6 months ago
2007
ACM
XACML has emerged as a popular access control language on the Web, but because of its rich expressiveness, it has proved difficult to analyze in an automated fashion. In this pape...
DBSEC
2006
13 years 7 months ago
2006
We demonstrate how access control models and policies can be represented by using term rewriting systems, and how rewriting may be used for evaluating access requests and for provi...
ICDE
2007
IEEE
14 years 7 months ago
2007
IEEE
There has been a great deal of work in recent years on processing and optimizing queries against XML data. Typically in these previous works, schema information is not considered,...