As the popularity of software-defined networks (SDN) and OpenFlow increases, policy-
driven network management has received more attention. Manual configuration of multiple …

Policy-based authorization systems are becoming more common as information systems
become larger and more complex. In these systems, to authorize a requester to access a …

Many service providers offer their services in exchange for users' private data. Despite new
regulations created to protect users privacy, users are often given little choice over the way …

The Attribute-Based Access Control (ABAC) model is one of the most powerful access
control models in use. It subsumes popular models, such as the Role-Based Access Control …

We design a graph-based framework for the analysis of access control policies that aims at
easing the specification and verification tasks for security administrators. We consider …

We propose a novel data collection and data sharing model for cloud-IoT architectures with
an emphasis on data privacy. This model has been implemented in Privasee, an open …

Security and privacy have become major issues. Although no one seriously claims that
privacy and security are identical, most sources treat them as if they are. Differentiating …

Policies that address security and privacy are pervasive parts of both technical and social
systems, and technology that enables both organizations and individuals to create and …

Personal data storages (PDSs) give individuals the ability to store their personal data in a
data unified repository and control release of their data to data consumers. Being able to …

Ubiquitous computing is characterized by the integration of computing aspects into the
physical environment. Physical objects gain digital sensing, processing, and communication …