Attribute-based access control (ABAC) is a promising alternative to traditional models of
access control (ie, discretionary access control (DAC), mandatory access control (MAC), and …

Over the last few decades, the proliferation of the Internet of Things (IoT) has produced an
overwhelming flow of data and services, which has shifted the access control paradigm from …

Securing access to data in location-based services and mobile applications requires the
definition of spatially aware access-control systems. Even if some approaches have already …

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 …

Cloud computing has recently gained tremendous momentum but still is in its infancy. It has
the potential for significant cost reduction and the increased operating efficiencies in …

Web services technologies are advancing fast and being extensively deployed in many di?
erent application environments. Web services based on the eXt-sible Markup Language …

The concept of roles has been prevalent in the area of Information Security for more than 15
years already. It promises simplified and flexible user management, reduced administrative …

In today's dynamic ICT environments, the ability to control users' access to information
resources and services has become ever important. On the one hand, it should provide …

Policy-based mechanisms have been effectively used to realize autonomic behavior in the
constituent elements of distributed systems. However, current prevalent policy models based …

New opportunities have been created for the management of critical situations utilizing the
Internet of Things (IoT). However, one of the difficulties in providing services for critical …