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SACMAT
2003
ACM
14 years 2 months ago
2003
ACM
This paper presents an approach that uses special purpose RBAC constraints to base certain access control decisions on context information. In our approach a context constraint is...
TKDE
2008
13 years 8 months ago
2008
Malicious users can exploit the correlation among data to infer sensitive information from a series of seemingly innocuous data accesses. Thus, we develop an inference violation d...
CCS
2008
ACM
13 years 11 months ago
2008
ACM
Role Engineering is a security-critical task for systems using role-based access control (RBAC). Different role-mining approaches have been proposed that attempt to automatically ...
IFIP
2005
Springer
14 years 2 months ago
2005
Springer
Recently, opacity has proved to be a promising technique for describing security properties. Much of the work has been couched in terms of Petri nets. Here, we extend the notion of...
ISI
2005
Springer
14 years 2 months ago
2005
Springer
Managing crises requires collecting geographical intelligence and making spatial decisions through collaborative efforts among multiple, distributed agencies and task groups. Crisi...