Elsevier

Procedia Computer Science

Volume 10, 2012, Pages 1172-1179
Procedia Computer Science

A Compact Bit String Accessibility Map for Secure XML Query Processing

https://doi.org/10.1016/j.procs.2012.06.169Get rights and content
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Abstract

One of the challenging issues related to specifying a fine-grained access control on the XML data is how to implement the accessibility map in a compact format with minimum affect on the XML query processing. In this paper, we propose a Compact Bit String Accessibility Map (CBSAM) to implement the accessibility map in a compact format. In order to achieve a secure and efficient XML query processing, the CBSAM is integrated with the region number labeling scheme. The experimental results illustrate that the CBSAM compresses the accessibility map with minimum affect on the XML query processing when the access locality among the XML nodes is high.

Keywords

Access Control
Labeling Scheme
Privacy
XML Query Processing

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