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GIS
2008
ACM
14 years 5 months ago
A location aware role and attribute based access control system
In this paper, we follow the role-based access control (RBAC) approach and extend it to provide for the dynamic association of roles with users. In our framework, privileges assoc...
Isabel F. Cruz, Rigel Gjomemo, Benjamin Lin, Mirko...
OTM
2007
Springer
13 years 10 months ago
A Role and Attribute Based Access Control System Using Semantic Web Technologies
We show how Semantic Web technologies can be used to build an access control system. We follow the role-based access control approach (RBAC) and extend it with contextual attribute...
Lorenzo Cirio, Isabel F. Cruz, Roberto Tamassia
COLCOM
2008
IEEE
13 years 10 months ago
A Constraint and Attribute Based Security Framework for Dynamic Role Assignment in Collaborative Environments
Abstract. We investigate a security framework for collaborative applications that relies on the role-based access control (RBAC) model. In our framework, roles are pre-defined and...
Isabel F. Cruz, Rigel Gjomemo, Benjamin Lin, Mirko...
NTMS
2008
IEEE
13 years 10 months ago
Time and Location Based Services with Access Control
—We propose an access control model that extends RBAC (Role-Based Access Control) to take time and location into account, and use term rewriting systems to specify access control...
Clara Bertolissi, Maribel Fernández
SEC
2008
13 years 5 months ago
Role Signatures for Access Control in Open Distributed Systems
Implementing access control efficiently and effectively in an open and distributed system is a challenging problem. One reason for this is that users requesting access to remote re...
Jason Crampton, Hoon Wei Lim