Discrete mathematical structures for computer science (2nd ed.)
Discrete mathematical structures for computer science (2nd ed.)
A model of authorization for next-generation database systems
ACM Transactions on Database Systems (TODS)
Formal query languages for secure relational databases
ACM Transactions on Database Systems (TODS)
Controlled access and dissemination of XML documents
Proceedings of the 2nd international workshop on Web information and data management
ACM Transactions on Database Systems (TODS)
An authorization mechanism for a relational database system
ACM Transactions on Database Systems (TODS)
XML document security based on provisional authorization
Proceedings of the 7th ACM conference on Computer and communications security
A fine-grained access control system for XML documents
ACM Transactions on Information and System Security (TISSEC)
Secure and selective dissemination of XML documents
ACM Transactions on Information and System Security (TISSEC)
Introduction to Algorithms
An Extended Authorization Model for Relational Databases
IEEE Transactions on Knowledge and Data Engineering
A Model of Authorization for Object-Oriented and Semantic Databases
EDBT '88 Proceedings of the International Conference on Extending Database Technology: Advances in Database Technology
Indexing and Querying XML Data for Regular Path Expressions
Proceedings of the 27th International Conference on Very Large Data Bases
A Model of Methods Access Authorization in Object-oriented Databases
VLDB '93 Proceedings of the 19th International Conference on Very Large Data Bases
XML access control using static analysis
Proceedings of the 10th ACM conference on Computer and communications security
Specifying access control policies for XML documents with XPath
Proceedings of the ninth ACM symposium on Access control models and technologies
Secure XML querying with security views
SIGMOD '04 Proceedings of the 2004 ACM SIGMOD international conference on Management of data
Compressed accessibility map: efficient access control for XML
VLDB '02 Proceedings of the 28th international conference on Very Large Data Bases
Compact access control labeling for efficient secure XML query evaluation
Data & Knowledge Engineering
Query rewriting algorithm evaluation for XML security views
SDM'07 Proceedings of the 4th VLDB conference on Secure data management
QFilter: rewriting insecure XML queries to secure ones using non-deterministic finite automata
The VLDB Journal — The International Journal on Very Large Data Bases
Pragmatic XML access control using off-the-shelf RDBMS
ESORICS'07 Proceedings of the 12th European conference on Research in Computer Security
Consistency and repair for XML write-access control policies
The VLDB Journal — The International Journal on Very Large Data Bases
HyXAC: a hybrid approach for XML access control
Proceedings of the 18th ACM symposium on Access control models and technologies
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XML is emerging as a useful platform-independent data representation language. As more and more XML data is shared across data sources, it becomes important to consider the issue of XML access control. One promising approach to store the accessibility information is based on the CAM (Compressed Accessibility Map). We make two advancements in this direction: 1) Previous work suggests that for each user group and each operation type, a different CAM is built. We observe that the performance and storage requirements can be further improved by combining multiple CAMs into an ICAM (Integrated CAM). We explore this possibility and propose an integration mechanism. 2) If the change in structure of the XML data is not frequent, we suggest an efficient lookup method, which can be applied to CAMs or ICAMs, with a much lower time complexity compared to the previous approach. We show by experiments the effectiveness of our approach.