—Making use of the World Wide Web’s numerous services increasingly requires the disclosure of personal user data. While these data represent an important value for service prov...
AAIs – Infrastructures for Authentication and Authorisation provide services for service providers on the Internet. Especially if combined with an attribute infrastructure these...
This paper describes how to generate compositions of semantic Web services using social trust information from user ratings of the services. We present a taxonomy of features, suc...
In this paper we present our authorization framework that supports the dynamic set-up of Web service federations for sharing data within virtual federations. Building on previous w...
Identity theft through phishing attacks has become a major concern for Internet users. Typically, phishing attacks aim at luring the user to a faked web site to disclose personal ...
Sebastian Gajek, Ahmad-Reza Sadeghi, Christian St&...