About me

I am a professor of information security and computer networks at Worms University of Applied Sciences (head of the network security research group and deputy scientific head of the centre of technology and transfer) and also affiliated with Fraunhofer FKIE (where I was head of a security research team for three years). I received my Ph.D. from the Univ. of Hagen in 2013.

Aged 17, I started writing books (sold 65,000 printed+electronic copies so far and counted 60,000+ free downloads of my older editions). A list of my 130+ publications can be found here. My publications appeared in high-quality journals/conference such as ACM CSUR, Comm. ACM, Wiley SCN, IEEE Security & Privacy, IEEE LCN, IFIP SEC, Springer ANTE and J.UCS. However, I also wrote books about the Linux operating system and contributed open source code/patches to the free software community. There is also a list of selected talks that I gave.

My research focuses on network information hiding (network covert channels and network steganography), science of security (SoC), IoT/smart buildings/homes, security of embedded communication protocols, and information security terminology/taxonomy.

Some of my key publications are on the fundamentals (SoC) of network information hiding: taxonomy/patterns/fundamentals [1,2], creativity evaluation of research paper submissions [3] and scientific methodology of information hiding [4]. Some of my other key contributions are focusing on traffic normalization and active wardens [5, 6] and covert channel optimization [7,8].

I am a member of several steering committees, initiatives, program and organizing committees (cf. details). I am (or was) lecturing and supervising at Augsburg University of Applied Sciences, Bonn University and Hagen University. A list of my projects, both funded and spare-time software projects, is also available.

In addition to information security, I am interested in university history, campus novels, and retro computing – in particular: operating system history and historic network protocols. I own a small collection of rather historic books on these retro computing topics. Since about five years, I am also a mid-distance runner (5km to half-marathon).

Find (information about) me here: Twitter, Google Scholar and ResearchGate.

Contact: steffen (at) wendzel (dot) de (PGP pub key: FD701BD1).

Recent News (Selection):

  • Dec-08-2018:
  • Nov-29-2018:
    • Check out our new project WoDiCoF, which is a testbed for covert channel detection algorithms.
  • Nov-22-2018:
  • Oct-11-2018:
  • Sep-13-2018:
    • I received the printed editions of my new book. Here is a photo.
  • Sep-12-2018:
  • Sep-11-2018:
    • A new paper got accepted at NordSec'18:
      Sebastian Zillien, Steffen Wendzel: Detection of covert channels in TCP retransmissions, in Proc. NordSec, Springer, 2018/in press.
      I wrote a blog post on the topic that we are going to cover in this paper and another paper.
  • Aug-25-2018:
    • I contributed a section to the new issue of the newsletter of the German Informatics Society (text in German), see here.
  • Aug-24-2018:
    • The online version of my new German book on TCP/IP and IoT network security is now available. The print version is still in press.
  • Aug-15-2018:
  • Aug-13-2018:
    • A new paper has been accepted at CECC'18:
      Steffen Wendzel, Daniela Eller, Wojciech Mazurczyk: One Countermeasure, Multiple Patterns: Countermeasure Variation for Covert Channels, in Proc. Central European Security Conference (CECC'18), to appear.