As organizations increase their reliance on, possibly distributed, information systems for
daily business, they become more vulnerable to security breaches even as they gain …

Purpose Data protection requirements heavily increased due to the rising awareness of data
security, legal requirements and technological developments. Today, NoSQL databases are …

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 …

Publisher Summary This chapter proposes a framework for enforcing access control policies
on published XML documents using cryptography. In this framework, the owner publishes a …

A key challenge in Web services security is the design of effective access control schemes
that can adequately meet the unique security challenges posed by the Web services …

Privacy-preserving document exchange among collaboration groups in an enterprise as
well as across enterprises requires techniques for sharing and search of access-controlled …

The XML role-based access control (X-RBAC) specification language addresses
multidomain environments' policy-specification needs. X-RBAC is based on an extension of …

As organizations depend on, possibly distributed, information systems for operational,
decisional and strategic activities, they are vulnerable to security breaches leading to data …