46 citations · 90 across the 6 of their papers we have counts for
6 papers
A Revised Taxonomy of Steganography Embedding Patterns
Steffen Wendzel, Luca Caviglione, Wojciech Mazurczyk +8
Steganography embraces several hiding techniques which spawn across multiple domains. However, the related terminology is not unified among the different domains, such as digital m…
Countering Adaptive Network Covert Communication with Dynamic Wardens
Wojciech Mazurczyk, Steffen Wendzel, Mehdi Chourib +1
Network covert channels are hidden communication channels in computer networks. They influence several factors of the cybersecurity economy. For instance, by improving the stealthi…
A Case Study on Covert Channel Establishment via Software Caches in High-Assurance Computing Systems
Wolfgang Schmidt, Michael Hanspach, Jörg Keller
Covert channels can be utilized to secretly deliver information from high privileged processes to low privileged processes in the context of a high-assurance computing system. In t…
Micro protocol engineering for unstructured carriers: On the embedding of steganographic control protocols into audio transmissions
Matthias Naumann, Steffen Wendzel, Wojciech Mazurczyk +1
Network steganography conceals the transfer of sensitive information within unobtrusive data in computer networks. So-called micro protocols are communication protocols placed with…
A Taxonomy for Attack Patterns on Information Flows in Component-Based Operating Systems
Michael Hanspach, Jörg Keller
We present a taxonomy and an algebra for attack patterns on component-based operating systems. In a multilevel security scenario, where isolation of partitions containing data at d…
A structural analysis of the A5/1 state transition graph
Andreas Beckmann, Jaroslaw Fedorowicz, Jörg Keller +1
We describe efficient algorithms to analyze the cycle structure of the graph induced by the state transition function of the A5/1 stream cipher used in GSM mobile phones and report…