The Web is causing a revolution in how we represent, retrieve, and process information Its
growth has given us a universally accessible database-but in the form of a largely …

Web-based applications greatly increase information availability and ease of access, which
is optimal for public information. The distribution and sharing of information via the Web that …

The widespread adoption of XML holds out the promise that document structure can be
exploited to specify precise database queries. However, the user may have only a limited …

XML (eXtensible Markup Language) has emerged as a prevalent standard for document
representation and exchange on the Web. It is often the case that XML documents contain …

Author-X is a Java-based system that addresses the security issues of access control and
policy design for XML document administration. Author-X supports the specification of …

Third-party architectures for data publishing over the Internet today are receiving growing
attention, due to their scalability properties and to the ability of efficiently managing large …

In this paper, our objective is to define a security model for regulating access to XML
documents. Our model offers a security policy with a great expressive power. An XML …

In this paper we propose a matching algorithm for measuring the structural similarity
between an XML document and a DTD. The matching algorithm, by comparing the …

This chapter proposes a purpose-based access control model in distributed computing
environment for privacy preserving policies and mechanisms, and describes algorithms for …

In this paper we propose an access control model for the Resource Description Framework
(RDF). We argue that existing access control models, like the ones developed for securing …