Secure XML Querying With Security Views
Click here to download now
Overview: The prevalent use of XML highlights the need for a generic, flexible access-control mechanism for XML documents that supports efficient and secure query access, without revealing sensitive information to unauthorized users. This paper introduces a novel paradigm for specifying XML security constraints and investigates the enforcement of such constraints during XML query evaluation. The paper proposes an efficient algorithm for deriving security view definitions from security policies (defined on the original document DTD) for different user groups.