I am currently offering thesis topics within, but not limited to, the following areas:

  • network covert channels / network steganography / network information hiding
  • security of smart buildings / Internet of Things (IoT) / smart cities
  • design and implementation of extensions for selected open source software projects
  • topics under the umbrella of my funded projects

All mentioned topics require either network-level programming skills, knowledge of network protocols and/or skills in information security. In general, I support the open source publication of developed code (under the condition of a good code quality). As shown below, I support the publication of scientific results. Moreover, I encourage my students to give public talks about their work. Good written and oral communication in the English language, coupled with relevant skills in the chosen research field are considered a strong advantage.

As a researcher who encourages collaboration, progress and originality, I do not to sign any NDAs (“Sperrvermerke”) anymore (starting April, 2019). I strongly encourage my potential students to gain valuable experience in researching and presenting their original work.

Outstanding Theses

I have mentored excellent students in the role of major supervisor for the following theses. While the works of several students have led to peer-reviewed publications, the following students provided above-average scientific contributions.

  • Mr Peter Backs: Automatisches Routing in einem Mikroprotokoll für Covert-Channel Netze, Master’s thesis, University of Hagen, 2011/12.
    • contribution to international workshop paper (ISTP’12); first author
  • Mr Matthias Naumann: Kontrollprotokolle für steganografische Kanäle, Master’s thesis, University of Hagen, 2013/2014.
    • contribution to paper in ranked international journal (Wiley SCN); first author
  • Ms Jaspreet Kaur: Countering Covert Channel-internal Control Protocols with Covert Channel-internal Control Protocols, Master’s thesis, University of Bonn, 2014.
    • key contribution to best paper award-winning international workshop paper (IWCC’15) + paper in ranked international journal (Wiley SCN); first author each
  • Ms Eva Anhaus: Data Leakage Protection für Gebäude, Bachelor’s thesis, University of Hagen, 2014.
    • key author of national workshop paper (D-A-CH Security’15); first author
  • Mr Sebastian Zillien:
    • Detection of Re-transmission-based Network Covert Channels, Bachelor’s thesis, Worms University of Applied Sciences, 2018.
      • key contribution to international conference paper (NordSec’18); first author
    • Reconnection-based Covert Channels in Wireless Networks, Master’s thesis, Worms University of Applied Sciences, 2020.
      • key contribution to ranked international conference paper (IFIP SEC’21); first author
  • Mr Florian Link: Die Umsetzung einer Detektionsmethode für Network Covert Channels am Beispiel des Size Modulation Pattern, Master’s thesis, Worms University of Applied Sciences, 2019.
    • contributed key results to paper in a ranked international journal (J.UCS), second author
  • Mr Tobias Schmidbauer: Nutzung von ARP und NDP Caches zum Datenaustausch zwischen zwei nicht direkt miteinander verbundenen Systemen, University of Hagen, 2019.
    • key contribution to international workshop paper (CUING’19); first author

University-level Teaching

I teach at Worms University of Applied Sciences, University of Hagen and HS Biberach (Akademie). Previously, I gave lectures at the University of Bonn, the NTNU COINS PhD Summer School and the Augsburg University of Applied Sciences.

University of Hagen (FernUniversität in Hagen)

  • Network Steganography (M.Sc. program; in preparation; scheduled for winter term 2021)
  • Theses advisor (since 2011)

Worms University of Applied Sciences

In Worms, I teach (or taught) the following courses (starting winter term 2016):

  • Cryptography (B.Sc.)
  • Mobile Security (M.Sc.)
  • Security and Privacy in the Internet of Things (M.Sc.)
  • Network Security (B.Sc.)
  • Computer Networks/Networks and Information Security (B.Sc.)
  • Operating Systems (
  • Machine Learning (B.Sc.)
  • MSc Seminar II (B.Sc.)
  • Inofficial free online class: Network Information Hiding
  • Research Seminar in Computer Science
  • Team-oriented project (TOP)

NTNU/COINS PhD Summer School 2018

I contributed a full-day lecture on my covert channel research to the COINS PhD summer school on Lesvos (Metochi monastery annex).

University of Bonn

  • Advanced IT-Security (M.Sc. program; contributed selected lectures on network security over multiple semesters summer 2015-summer 2016)
  • Master Lab advisor (summer 2015-summer 2016)
  • Master’s Project with Seminar advisor (winter 2014/15)
  • Advisor of several theses and seminar students (summer 2014-summer 2016)

Akademie at Biberach University of Applied Sciences

  • Part of Building Automation Networks, M.Eng. program, since summer 2017.

Augsburg University of Applied Sciences

  • Data Communication (summer 2011-summer 2014)
  • Tunneling and Covert Channels (winter 2013/14)
  • Project Groups (co-supervision; summer 2011-summer 2013)
  • Environmental Computer Science (co-supervision; summer 2013)
  • Research Methodology 101 (part of Startklar program; winter 2012/13)
  • Linux Basics (for bureau of women’s representative; several years in a row)