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  1. Proceedings of the 2003 ACM workshop on XML security (XMLSEC '03)
  2. Access control of XML documents considering update operations
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Running head: Storage and Access Control Issues for XML Documents Storage and Access Control Issues for XML Documents 1 Storage and Access Control Issues for XML Documents

Access control of XML documents considering update operations

Content Provider ACM Digital Library
Author Son, Sang H. Lim, Chung-Hwan Park, Seog
Abstract As a large quantity of information is presented in XML format on the Web, there are increasing demands for XML security. Until now, research on XML security has been focused on the security of data communication using digital signatures or encryption technologies. As XML is also used for a data representation of data storage, XML security comes to involve not only communication security but also managerial security. Managerial security is guaranteed through access control, but existing XML access control models consider only read queries. These models may make some problems when unauthorized users try to change XML documents or their structure. Therefore the access control of update queries must be executed correctly and efficiently as well as read queries. In this paper, we discuss an XML access control model and propose a technique that supports not only read operations but also update operations. We define new action types to systematically manage complex information of access right and to process various update queries in an efficient manner. Using these action types, the system can save memory and other system resources that are used in DOM-based DTD verification process, and shortens the overall steps of access control by filtering unnecessary queries out at the early stage. Although for read queries the proposed access control model introduces a minor overhead in determining action types, for update queries it shows better performance compared to existing access control models.
Starting Page 49
Ending Page 59
Page Count 11
File Format PDF
ISBN 158113777X
DOI 10.1145/968559.968568
Language English
Publisher Association for Computing Machinery (ACM)
Publisher Date 2003-10-31
Publisher Place New York
Access Restriction Subscribed
Subject Keyword Access control Xml document Xml update
Content Type Text
Resource Type Article
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