A fine-grained access control system for XML documents
ACM Transactions on Information and System Security (TISSEC)
Cryptography and data security
Cryptography and data security
Executing SQL over encrypted data in the database-service-provider model
Proceedings of the 2002 ACM SIGMOD international conference on Management of data
Securing XML Documents with Author-X
IEEE Internet Computing
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ICDE '98 Proceedings of the Fourteenth International Conference on Data Engineering
Incremental Validation of XML Documents
ICDT '03 Proceedings of the 9th International Conference on Database Theory
ViST: a dynamic index method for querying XML data by tree structures
Proceedings of the 2003 ACM SIGMOD international conference on Management of data
Efficient Filtering of XML Documents with XPath Expressions
ICDE '02 Proceedings of the 18th International Conference on Data Engineering
PRIX: Indexing And Querying XML Using Prüfer Sequences
ICDE '04 Proceedings of the 20th International Conference on Data Engineering
Order preserving encryption for numeric data
SIGMOD '04 Proceedings of the 2004 ACM SIGMOD international conference on Management of data
A formal analysis of information disclosure in data exchange
SIGMOD '04 Proceedings of the 2004 ACM SIGMOD international conference on Management of data
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
A privacy-preserving index for range queries
VLDB '04 Proceedings of the Thirtieth international conference on Very large data bases - Volume 30
XFlat: query friendly encrypted XML view publishing
APWeb'06 Proceedings of the 8th Asia-Pacific Web conference on Frontiers of WWW Research and Development
A practical mandatory access control model for XML databases
Information Sciences: an International Journal
Information Sciences: an International Journal
XML materialized views and schema evolution in VIREX
Information Sciences: an International Journal
Journal of Computer and System Sciences
A new tool for sharing and querying of clinical documents modeled using HL7 Version 3 standard
Computer Methods and Programs in Biomedicine
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The security of published XML data receives exceptional attention due to its sensitive nature in many applications. This paper proposes an XML view publishing method called XFlat. Compared with other methods, XFlat focuses on query performance over the published XML view while simultaneously protecting the sensitive data via encryption techniques. XFlat decomposes an XML tree into a set of sub-trees, in each of which multiple users have the same accessibility to all nodes, and may encrypt and store each sub-tree in a flat, sequential manner. This storage strategy can avoid the nested encryption cost in view construction and the nested decryption cost in query evaluation. In addition, we discuss how to generate a user-specific schema and how to minimize the total space cost of the published XML view when considering the overhead of the relationships among the sub-trees. We also propose an XML schema index to enhance query performance over the final XML view. The experimental results demonstrate the effectiveness and efficiency of the proposed XFlat method.