481 search results - page 39 / 97 » Analyzing and Managing Role-Based Access Control Policies |
IFIP
2004
Springer
14 years 2 months ago
2004
Springer
We extend a particular access control framework, the Privilege Calculus, with a possibility to override denied access for increased flexibility in hard to define or unanticipated...
GRID
2006
Springer
13 years 8 months ago
2006
Springer
Abstract-- Sharing data among collaborators in widely distributed systems remains a challenge due to limitations with existing methods for defining groups across administrative dom...
JHSN
2006
13 years 8 months ago
2006
With the growing interest in service-oriented architectures, achieving seamless interoperability between heterogeneous middleware technologies has become increasingly important. W...
IJCMAM
2010
13 years 6 months ago
2010
Commercial Web-based Personal-Health Record (PHR) systems can help patients to share their personal health records (PHRs) anytime from anywhere. PHRs are very sensitive data and an...
CCS
2004
ACM
14 years 2 months 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...