Access controller using tree-structured data

Details Access controller using tree-structured data Access controller using tree-structured data

2009-02-02

2010-12-14

Alam, Hosain T (Department: 2166)

Data processing: database and file management or data structures

Database and file access

Database access control methods

C707S803000, C715S234000

Reexamination Certificate

active

07853613

ABSTRACT:
A method for controlling access to a data source includes steps of: storing a plurality of access control policies in a database; generating a plurality of tree-structured data from the policies; merging the plurality of tree-structured data; determining that a user is attempting to access part of the data source; determining whether or not to permit access; verify consistency of the determination; store the merged tree-structured data; and designate the part of the data source by a path expression.

REFERENCES:
patent: 6366913 (2002-04-01), Fitler et al.
patent: 2002/0078094 (2002-06-01), Krishnaprasad et al.
patent: 2002/0111934 (2002-08-01), Narayan
patent: 2003/0023587 (2003-01-01), Dennis et al.
patent: 2003/0028495 (2003-02-01), Pallante
patent: 2005/0004924 (2005-01-01), Baldwin
patent: 2005/0240550 (2005-10-01), Armes et al.
Japanese Publication No. 2001-273285 published on Oct. 5, 2001.
Qi et al. “A Path-table-based Access Control Model for XML Database System,” IBM Research, Tokyo Research Laboratory,.

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