An access control method based on the prefix labeling scheme for XML repositories

Authors:
Shohei Yokoyama;Manabu Ohta;Kaoru Katayama;Hiroshi Ishikawa
Affiliations:
Tokyo Metropolitan University, Tokyo, Japan;Tokyo Metropolitan University, Tokyo, Japan;Tokyo Metropolitan University, Tokyo, Japan;Tokyo Metropolitan University, Tokyo, Japan
Venue:
ADC '05 Proceedings of the 16th Australasian database conference - Volume 39
Year:
2005

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Abstract

This paper describes an access control method of the XML repository system, SAXOPHONE, which was implemented at Tokyo Metropolitan University. The main feature of our research is a novel account identifier that is based on the prefix-labeling scheme to realize a hierarchical authorization. SAXOPHONE uses relational databases for XML document storage. Using it, any valid or well-formed XML document is decomposed into events of the SAX parser and is then stored into relational tables using a fixed scheme. Consequently, users can handle the system as a normal SAX parser. This study also illustrates how to realize an access control method of XML documents on relational databases using the account identifier.