Spam is a dominant problem on email systems today. One of the reasons is the lack of infrastructure for security and trust. As Voice over IP (VoIP) communication becomes increasing...
The Internet provides an environment where two parties, who are virtually strangers to each other, can make connections and do business together. Before any actual business starts...
Establishing trust amongst agents is of central importance to the development of well-functioning multi-agent systems. For example, the anonymity of transactions on the Internet c...
Provision of services within a virtual framework for resource sharing across institutional boundaries has become an active research area. Many such services encode access to compu...
Pervasive computing allows data to be collected using sensors and mobile devices. Recent studies, however, show that in emergency and crisis situations conventional access control ...