CAPTCHAs protect online resources and services from automated access. From an attacker’s point of view, they are typically perceived as an annoyance that prevents the mass creat...
Manuel Egele, Leyla Bilge, Engin Kirda, Christophe...
This paper introduces Mycrocosm, a microblogging site in which users communicate via statistical graphics, rather than the usual short text statements. Users of Mycrocosm can reco...
In a service-oriented architecture, service compositions are assembled from other component services. Such compositions may include services from unknown and potentially untrusted...
Christian Schneider, Frederic Stumpf, Claudia Ecke...
While properties of wireless communications are often considered as a disadvantage from a security perspective, this work demonstrates how multipath propagation, a broadcast mediu...
Abstract—Free-space optical (FSO) links are competitive wireless links offering high data rate, security and low system complexity. For mobile applications, e.g., from a ground b...