—Group-Centric Secure Information Sharing (g-SIS) is motivated by the need to dynamically share information amongst a set of authorized users for a specific purpose. Authorized ...
Cross-site scripting (or XSS) has been the most dominant class of web vulnerabilities in 2007. The main underlying reason for XSS vulnerabilities is that web markup and client-sid...
A mundane but theoretically interesting and practically relevant situation presents itself on social networking sites: the co-presence of multiple groups important to an individua...
Location-based services in general require information about the position of certain objects. For instance, for a navigation service the position of the user needs to be known. Th...
Hendrik Lemelson, Thomas King, Wolfgang Effelsberg
In this paper we shall introduce a new electronic payment concept based on the popular direct debit payment model, entitled periodical payments. The direct debit model currently i...