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)
Storing and querying ordered XML using a relational database system
Proceedings of the 2002 ACM SIGMOD international conference on Management of data
Managing and querying multi-version XML data with update logging
Proceedings of the 2002 ACM symposium on Document engineering
A Temporal Access Control Mechanism for Database Systems
IEEE Transactions on Knowledge and Data Engineering
Change-Centric Management of Versions in an XML Warehouse
Proceedings of the 27th International Conference on Very Large Data Bases
Efficient Management of Multiversion Documents by Object Referencing
Proceedings of the 27th International Conference on Very Large Data Bases
RDF metadata for XML access control
Proceedings of the 2003 ACM workshop on XML security
ORDPATHs: insert-friendly XML node labels
SIGMOD '04 Proceedings of the 2004 ACM SIGMOD international conference on Management of data
Relevancy based access control of versioned XML documents
Proceedings of the tenth ACM symposium on Access control models and technologies
Client-based access control management for XML documents
VLDB '04 Proceedings of the Thirtieth international conference on Very large data bases - Volume 30
A practical mandatory access control model for XML databases
Information Sciences: an International Journal
Query Rewriting Rules for Versioned XML Documents
DEXA '09 Proceedings of the 20th International Conference on Database and Expert Systems Applications
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Integration of version and access control of XML documents has the benefit of regulating access to rapidly growing archives of XML documents. Versioned XML documents provide us with valuable information on dependencies between document nodes, but, at the same time, presenting the risk of undesirable data disclosure. In this article, we introduce the notion of relevancy-based access control, which realizes protection of versioned XML documents by various types of relevancy, such as version dependencies, schema similarities, and temporal proximity. We define a new path query language XVerPath over XML document versions, which can be utilized for specifying relevancy-based access-control policies. We also introduce the notion of relevancy class, for collectively and compactly specifying relevancy-based policies. Regarding efficient processing of access requests, we propose the packed version model, which realizes space-efficient difference-based archives of versioned XML documents and, at the same time, providing efficient evaluation of XVerPath queries. Experimental results show reasonable performance superiority over conventional methods, which do not utilize version differences.