Role-Based Access Control Models
Computer
Supporting relationships in access control using role based access control
RBAC '99 Proceedings of the fourth ACM workshop on Role-based access control
Providing Security and Interoperation of HeterogeneousSystems
Distributed and Parallel Databases - Security of data and transaction processing
The NIST model for role-based access control: towards a unified standard
RBAC '00 Proceedings of the fifth ACM workshop on Role-based access control
XML document security based on provisional authorization
Proceedings of the 7th ACM conference on Computer and communications security
Configuring role-based access control to enforce mandatory and discretionary access control policies
ACM Transactions on Information and System Security (TISSEC)
A model of OASIS role-based access control and its support for active security
SACMAT '01 Proceedings of the sixth ACM symposium on Access control models and technologies
Proposed NIST standard for role-based access control
ACM Transactions on Information and System Security (TISSEC)
A fine-grained access control system for XML documents
ACM Transactions on Information and System Security (TISSEC)
Securing XML Documents with Author-X
IEEE Internet Computing
An approach to engineer and enforce context constraints in an RBAC environment
Proceedings of the eighth ACM symposium on Access control models and technologies
Regulating access to XML documents
Das'01 Proceedings of the fifteenth annual working conference on Database and application security
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Information sharing among heterogeneous databases requires increasing attention and poses a pressing need. Successful protection of information by an effective access control mechanism is a basic requirement for interoperation among heterogeneous data sources. However, most existing work on access control focuses on access control model and security related information, little effort is devoted to exploring access control on the semantic-related heterogeneous databases. No current work resolves the security challenges faced by heterogeneous databases, i.e., context-aware authorization, semantic heterogeneity of databases and policy specification at different points. This paper proposes a mediation security system that secures the information sharing among heterogeneous databases with the promise to meet the above requirements. The proposed system models the flexible access control requirements specific to mediation security while providing uniform access for heterogeneous data sources.