Assistant Professor, School of Computer Science
Diogo Barradas has significantly advanced the state-of-the-art on the use of personal video communication, such as Skype, as a carrier for covert TCP/IP communication. An advantage is that personal video communication requires high bandwidth to be usable, such that sufficient bandwidth for the covert message might be available. In his work he has shown that all existing methods are easy to detect using simple statistical tests and he has developed the first methods that are undetectable even by advanced machine learning algorithms. Furthermore, he has developed scalable systems at a very low level in the network stack that enable the wide deployment of these methods on the Internet.