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
Optimizing Regular Path Expressions Using Graph Schemas
ICDE '98 Proceedings of the Fourteenth International Conference on Data Engineering
Efficient Filtering of XML Documents with XPath Expressions
ICDE '02 Proceedings of the 18th International Conference on Data Engineering
Secure XML querying with security views
SIGMOD '04 Proceedings of the 2004 ACM SIGMOD international conference on Management of data
Efficient algorithms for processing XPath queries
VLDB '02 Proceedings of the 28th international conference on Very Large Data Bases
Optimizing the secure evaluation of twig queries
VLDB '02 Proceedings of the 28th international conference on Very Large Data Bases
Controlling access to published data using cryptography
VLDB '03 Proceedings of the 29th international conference on Very large data bases - Volume 29
XFlat: Query-friendly encrypted XML view publishing
Information Sciences: an International Journal
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The security of the published XML data receives high attention due to the sensitive nature of the data in some areas. This paper proposes an XML view publishing method called XFlat. Compared with other methods, XFlat focuses on the efficiency of query evaluation over the published XML view. XFlat decomposes a XML tree into a set of sub-trees with the same accessibility on each node to all users, encrypts and stores each sub-tree in a flat sequential way. This storage strategy can avoid the nested encryption in view construction and decryption in the query evaluation. In addition, we discuss how to generate the user specific schema and minimize the total space cost of XML view with the consideration of the size of the relationship among the sub-trees. The final experimental results demonstrate the effectiveness and efficiency of our method.