Trust management systems are frameworks for authorization in modern distributed systems,
allowing remotely accessible resources to be protected by providers. By allowing providers …

This paper describes the output of the PERMIS project, which has developed a role based
access control infrastructure that uses X. 509 attribute certificates (ACs) to store the users' …

Policies are pervasive in web applications. They play crucial roles in enhancing security,
privacy and usability of distributed services. There has been extensive research in the area …

IoT clouds facilitate the communication between IoT devices and users, and authorize users'
access to their devices. In this paradigm, an IoT device is usually managed under a …

Our system, TrustBuilder, supports automated trust negotiation between strangers on the
Internet. TrustBuilder lets negotiating parties disclose relevant digital credentials and access …

We present Trust-/spl Xscr/;, a comprehensive XML-based framework for trust negotiations,
specifically conceived for a peer-to-peer environment. Trust negotiation is a promising …

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 …

Most deployed authorization systems rely on a central trusted service whose compromise
can lead to the breach of millions of user accounts and permissions. We present WAVE, an …

We introduce the provisional trust negotiation framework PROTUNE, for combining
distributed trust management policies with provisional-style business rules and access …

Researchers have recently begun to develop and investigate policy languages to describe
trust and security requirements on the Semantic Web. Such policies will be one component …