Network access control mechanisms constitute an increasingly needed service, when
communications are becoming more and more ubiquitous thanks to some technologies such …

Today, it becomes more and more common to combine services from different providers into
one application. Service composition is however difficult and cumbersome when there is no …

The expansion of inter-organizational scenarios based on different authorization schemes
involves the development of integration solutions allowing different authorization domains to …

Today, when organizations perform access control over their resources they are not only
interested in the user's identity, but in other data such as user's attributes or contextual …

Due to the increasing number of service providers, the grouping of these providers following
the federation concept and the use of the Single Sign On (SSO) concept are helping users to …

The main focus of this thesis is applied research targeting industrial applications of Usage
Control (UCON) and policy-based governance. Nonetheless, we also tackle an associated …

We are experiencing the emergence of federated approaches to resource sharing. In these
approaches, trust links are established among different autonomous organizations in order …

Abstract Federated Identity Management (FIM) hat die Motivation, Identitätsdaten eines
Benutzers von einer Heimatorganisation, dh Identity Provider (IdP), einem Dienstbetreiber …

Multimedia content distribution has appeared as a new growth market offered by network
providers, defining resource access infrastructures able to support both wired and wireless …

Identity federations are emerging in the last years in order to make easier the deployment of
resource sharing environments among organizations. One common feature of those …