132 search results - page 25 / 27 » Model Driven Security: Unification of Authorization Models f... |
CCS
2008
ACM
13 years 9 months ago
2008
ACM
In extraordinary situations, certain individuals may require access to information for which they are not normally authorized. For example, to facilitate rescue of people trapped ...
IJISEC
2006
13 years 7 months ago
2006
Since Boneh and Franklin published their seminal paper on identity based encryption (IBE) using the Weil pairing , there has been a great deal of interest in cryptographic primitiv...
CCS
2010
ACM
14 years 2 months ago
2010
ACM
In an attribute-based signature (ABS), users sign messages with any predicate of their attributes issued from an attribute authority. Under this notion, a signature attests not to...
TES
2001
Springer
13 years 12 months ago
2001
Springer
Current developments show that tomorrow’s information systems and applications will no longer be based on monolithic architectures that encompass all the functionality. Rather, t...
CCS
2007
ACM
14 years 1 months ago
2007
ACM
In this paper, we study the maintenance of role-based access control (RBAC) models in database environments using transitive closure relations. In particular, the algorithms that ...