Trust is an integral component in many kinds of human interaction, allowing people to act
under uncertainty and with the risk of negative consequences. For example, exchanging …

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

We present a declarative authorization language. Policies and credentials are expressed
using predicates defined by logical clauses, in the style of constraint logic programming …

Securing communication in network applications involves many complex tasks that can be
daunting even for security experts. The Named Data Networking (NDN) architecture builds …

The networking and distributed systems communities have recently explored a variety of
new network architectures, both for application-level overlay networks, and as prototypes for …

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 …

We study the specification of access control policy in large-scale distributed systems. We
present Cassandra, a language and system for expressing policy, and the results of a …

Sensor networks are notoriously difficult to program, given that they encompass the
complexities of both distributed and embedded systems. To address this problem, we …

Grid computing allows sharing of services and resources accross institutions. However,
current Grid security mechanisms for authentication and authorization are too rigid and they …

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 …