IEEE Transactions on Software Engineering
A model of authorization for next-generation database systems
ACM Transactions on Database Systems (TODS)
ACM Transactions on Database Systems (TODS)
System R: relational approach to database management
ACM Transactions on Database Systems (TODS)
An authorization mechanism for a relational database system
ACM Transactions on Database Systems (TODS)
A history and evaluation of System R
Communications of the ACM
Views and Security in Distributed Database Management Systems
EDBT '88 Proceedings of the International Conference on Extending Database Technology: Advances in Database Technology
A temporal authorization model
CCS '94 Proceedings of the 2nd ACM Conference on Computer and communications security
A non-timestamped authorization model for data management systems
CCS '96 Proceedings of the 3rd ACM conference on Computer and communications security
A unified framework for enforcing multiple access control policies
SIGMOD '97 Proceedings of the 1997 ACM SIGMOD international conference on Management of data
A discretionary access control model with temporal authorizations
NSPW '94 Proceedings of the 1994 workshop on New security paradigms
An access control model supporting periodicity constraints and temporal reasoning
ACM Transactions on Database Systems (TODS)
Flexible support for multiple access control policies
ACM Transactions on Database Systems (TODS)
An authorization model for temporal and derived data: securing information portals
ACM Transactions on Information and System Security (TISSEC)
A Temporal Access Control Mechanism for Database Systems
IEEE Transactions on Knowledge and Data Engineering
Constraints-based access control
Das'01 Proceedings of the fifteenth annual working conference on Database and application security
An Authorization Model for Geospatial Data
IEEE Transactions on Dependable and Secure Computing
Towards reasonability properties for access-control policy languages
Proceedings of the eleventh ACM symposium on Access control models and technologies
Flexible Resolution of Authorisation Conflicts in Distributed Systems
DSOM '08 Proceedings of the 19th IFIP/IEEE international workshop on Distributed Systems: Operations and Management: Managing Large-Scale Service Deployment
Supporting multiple access control policies in database systems
SP'96 Proceedings of the 1996 IEEE conference on Security and privacy
An OWL-Based approach for RBAC with negative authorization
KSEM'06 Proceedings of the First international conference on Knowledge Science, Engineering and Management
Specifying and reasoning about dynamic access-control policies
IJCAR'06 Proceedings of the Third international joint conference on Automated Reasoning
A semantic authorization model for pervasive healthcare
Journal of Network and Computer Applications
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This paper proposes two major extensions to the authorization model for System R relational database management system. The first extension concerns the revoke operation. The revised model provides for a new type of revoke operation, called noncascading revoke, in addition to the System R cascading revoke operation. Unlike cascading revoke, noncascading revoke operation does not recursively remove privileges from users. The second extension concerns negative authorization. The details related to its application are specified in the paper.