Efficient Querying of XML Data Through Arbitrary Security Views
Identifieur interne : 001E82 ( Hal/Curation ); précédent : 001E81; suivant : 001E83Efficient Querying of XML Data Through Arbitrary Security Views
Auteurs : Houari Mahfoud [Algérie] ; Abdessamad Imine [France]Source :
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Abstract
We study the problem of querying virtual security views of XML data that has received a great attention during the past years. A major concern here is that user XPath queries posed on recursive views cannot be rewritten to be evaluated on the underlying XML data. Existing rewriting solutions are based on the non-standard language, “Regular XPath”, which makes rewriting possible under recursion. However, query rewriting under Regular XPath can be of exponential size. We show that query rewriting is always possible for arbitrary security views (recursive or not) by using only the expressive power of the standard XPath. We propose a more expressive language to specify XML access control policies as well as an efficient algorithm to enforce such policies. Finally, we present our system, called SVMAX, that implements our solutions and we show that it scales well through an extensive experimental study based on real-life DTD.
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DOI: 10.1007/978-3-662-48567-5_3
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A major concern here is that user XPath queries posed on recursive views cannot be rewritten to be evaluated on the underlying XML data. Existing rewriting solutions are based on the non-standard language, “Regular XPath”, which makes rewriting possible under recursion. However, query rewriting under Regular XPath can be of exponential size. We show that query rewriting is always possible for arbitrary security views (recursive or not) by using only the expressive power of the standard XPath. We propose a more expressive language to specify XML access control policies as well as an efficient algorithm to enforce such policies. 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Centre national de la recherche scientifique</idno><idno type="stamp" n="UNIV-FCOMTE">Université de Franche-Comté</idno><idno type="stamp" n="INPL">Institut National Polytechnique de Lorraine</idno><idno type="stamp" n="INRIA-LORRAINE">INRIA Nancy - Grand Est</idno><idno type="stamp" n="LABO-LORIA-SET" p="LORIA">LABO-LORIA-SET</idno><idno type="stamp" n="INRIA-NANCY-GRAND-EST">INRIA Nancy - Grand Est</idno><idno type="stamp" n="LORIA-FM" p="LORIA">Méthodes formelles</idno><idno type="stamp" n="LORIA2">Publications du LORIA</idno><idno type="stamp" n="INRIA">INRIA - Institut National de Recherche en Informatique et en Automatique</idno><idno type="stamp" n="INRIA2">INRIA 2</idno><idno type="stamp" n="LORIA">LORIA - Laboratoire Lorrain de Recherche en Informatique et ses Applications</idno><idno type="stamp" n="UNIV-BM">Université de Technologie de Belfort-Montbeliard</idno><idno type="stamp" n="ENSMM">Ecole Nationale Supérieure de Mécanique et des Microtechniques</idno><idno type="stamp" n="FEMTO-ST" p="UNIV-FCOMTE">Franche-Comté Electronique, Mécanique, Thermique et Optique - Sciences et Technologies</idno><idno type="stamp" n="UNIV-BM-THESE">Université de Technologie de Belfort-Montbeliard</idno><idno type="stamp" n="UNIV-LORRAINE">Université de Lorraine</idno></seriesStmt><notesStmt><note type="audience" n="2">International</note><note type="popular" n="0">No</note></notesStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Efficient Querying of XML Data Through Arbitrary Security Views</title><author role="aut"><persName><forename type="first">Houari</forename><surname>Mahfoud</surname></persName><email>Houari.Mahfoud@gmail.com</email><idno type="halAuthorId">1258941</idno><orgName ref="#struct-422681"></orgName><affiliation ref="#struct-239915"></affiliation></author><author role="aut"><persName><forename type="first">Abdessamad</forename><surname>Imine</surname></persName><idno type="halAuthorId">62752</idno><affiliation ref="#struct-2366"></affiliation></author></analytic><monogr><idno type="isbn">978-3-662-48566-8</idno><title level="m">Transactions on Large-Scale Data- and Knowledge-Centered Systems XXII</title><imprint><biblScope unit="serie">Lecture Notes in Computer Science</biblScope><biblScope unit="volume">9430</biblScope><biblScope unit="pp">75-114</biblScope><date type="datePub">2015-11-10</date></imprint></monogr><idno type="doi">10.1007/978-3-662-48567-5_3</idno></biblStruct></sourceDesc><profileDesc><langUsage><language ident="en">English</language></langUsage><textClass><keywords scheme="author"><term xml:lang="en"> XPath</term><term xml:lang="en"> Materialization</term><term xml:lang="en"> Security views</term><term xml:lang="en">XML databases</term><term xml:lang="en"> XML access control</term><term xml:lang="en"> Confidentiality and integrity</term><term xml:lang="en"> Query rewriting</term></keywords><classCode scheme="halDomain" n="info.info-db">Computer Science [cs]/Databases [cs.DB]</classCode><classCode scheme="halDomain" n="info.info-cr">Computer Science [cs]/Cryptography and Security [cs.CR]</classCode><classCode scheme="halDomain" n="info.info-ds">Computer Science [cs]/Data Structures and Algorithms [cs.DS]</classCode><classCode scheme="halTypology" n="COUV">Book section</classCode></textClass><abstract xml:lang="en">We study the problem of querying virtual security views of XML data that has received a great attention during the past years. A major concern here is that user XPath queries posed on recursive views cannot be rewritten to be evaluated on the underlying XML data. Existing rewriting solutions are based on the non-standard language, “Regular XPath”, which makes rewriting possible under recursion. However, query rewriting under Regular XPath can be of exponential size. We show that query rewriting is always possible for arbitrary security views (recursive or not) by using only the expressive power of the standard XPath. We propose a more expressive language to specify XML access control policies as well as an efficient algorithm to enforce such policies. Finally, we present our system, called SVMAX, that implements our solutions and we show that it scales well through an extensive experimental study based on real-life DTD.</abstract></profileDesc></hal></record>Pour manipuler ce document sous Unix (Dilib)
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