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International Symposium on Database Programming Languages, LYON : France (2009)

XML Security Views Revisited

Benoit Groz 1, 2, Slawomir Staworko 1, Anne-Cécile Caron 1, Yves Roos 1, Sophie Tison 3

For the ANR-07-blanc collaboration(s)

(2009-08-23)

In this paper, we revisit the view based security framework for XML without imposing any of the previously considered restrictions on the class of queries, the class of DTDs, and the type of annotations used to dene the view. First, we show that the full class of Regular XPath queries is closed under query rewriting. Next, we address the problem of constructing a DTD that describes the view schema, which in general needs not be regular. We propose three dierent methods of ap- proximating the view schema and we show that the produced DTDs are indistinguishable from the exact schema (with queries from a class speci c for each method). Finally, we investigate problems of static analysis of security access specications.

1:	MOSTRARE (INRIA Lille - Nord Europe)
	INRIA – CNRS : UMR8022 – Université des Sciences et Technologies de Lille - Lille I : EA3588 – Université Charles de Gaulle - Lille III
2:	Ecole Normale Supérieure de Cachan (ENS Cachan)
	École normale supérieure de Cachan - ENS Cachan
3:	Laboratoire d'Informatique Fondamentale de Lille (LIFL)
	CNRS : UMR8022 – INRIA – IRCICA – Université des Sciences et Technologies de Lille - Lille I

Research team: Mostrare

Subject

:

Computer Science/Databases

Keyword(s): XML – views – query rewriting – access control – regular xpath – DTD – approximation

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From: Benoit Groz <>

Submitted on: Monday, 29 June 2009 14:40:29

Updated on: Thursday, 29 October 2009 16:29:53