Motivated by the” database-as-service” paradigm wherein data owned by a client is hosted
on a third-party server, there is significant interest in secure query evaluation over encrypted …

XML access control requires the enforcement of highly expressive access control policies to
support schema-, document and object-specific protection requirements. Access control …

A growing number of domains are adopting semantic models as a centralized gateway to
heterogeneous data sources, or directly for modeling and managing relevant information. In …

Web-based third-party architectures for data publishing are today receiving growing
attention, due to their scalability and the ability to efficiently manage large numbers of users …

RDF is an increasingly used framework for describing Web resources, including sensitive
and confidential resources. In this context, we need an expressive language to query RDF …

In this paper, we ask whether XML access control can be supported when underlying (XML
or relational) storage system does not provide adequate security features and propose three …

Regulating access to electronic health records has become a major social and technical
challenge. Unfortunately, existing access control models fail in translating accurately basic …

The erosion of trust put in traditional database servers and in Database Service Providers
and the growing interest for different forms of selective data dissemination are different …

In authorization-transparent access control, user queries are formulated against the
database schema rather than against authorization views that transform and hide data. The …

As the XML model gets more popular, new needs arise to specify access control within XML
model. Various XML access control models and enforcement methods have been proposed …