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    Query translation for xpath-based security views

    Vercammen, R. and Hidders, Jan and Paredaens, J. (2006) Query translation for xpath-based security views. In: Grust, T. and Hopfner, H. and Illarramendi, A. and Jablonski, S. and Mesiti, M. and Muller, S. and Patranjan, P.-L. and Sattler, K.-U. and Spiliopoulou, M. and Wijsen, J. (eds.) International Conference on Extending Database Technology: Current Trends in Database Technology. Lecture Notes in Computer Science 4254. Springer, pp. 250-263. ISBN 9783540467885.

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    Abstract

    Since XML is used as a storage format in an increasing number of applications, security has become an important issue in XML databases. One aspect of security is restricting access to data by certain users. This can, for example, be achieved by means of access rules or XML security views, which define projections over XML documents. The usage of security views avoids information leakage that may occur when we use certain access rules. XML views can be implemented by materialized views, but materialization and maintenance of views may cause considerable overhead. Therefore, we study translations from queries on views to equivalent queries on the original XML documents, assuming both the security views and the queries are specified by XPath expressions. Especially, we investigate which XPath fragments are closed under the composition of a view and a query.

    Metadata

    Item Type: Book Section
    School: School of Business, Economics & Informatics > Computer Science and Information Systems
    Depositing User: Sarah Hall
    Date Deposited: 13 Apr 2021 13:52
    Last Modified: 13 Apr 2021 13:54
    URI: https://eprints.bbk.ac.uk/id/eprint/43873

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