Markus Sosnowski

Sofware Engineer, Researcher and PhD Student


I am a creative mind passionate about designing and implementing ideas. As software engineer I am interested in software development, software architectures, and large computer networks. As PhD Student I can combine these interest in my research where I try to find ways to model the architecture of the whole Internet.


Jul 29, 2022 Invited to present my TMA research paper at the IETF 114. A recording is available on [YouTube].
Oct 24, 2022 Using TLS for active server fingerprinting
Mar 21, 2023 Presented the DissecTLS paper at the PAM 2023. A recording is available on [YouTube].


  1. Active TLS Stack Fingerprinting: Characterizing TLS Server Deployments at Scale
    Sosnowski, Markus, Zirngibl, Johannes, Sattler, Patrick, Carle, Georg, Grohnfeldt, Claas, Russo, Michele, and Sgandurra, Daniele
    In Proc. Network Traffic Measurement and Analysis Conference (TMA) Jun 2022 *Best Paper Award*
  2. DissecTLS: A Scalable Active Scanner for TLS Server Configurations, Capabilities, and TLS Fingerprinting
    Sosnowski, Markus, Zirngibl, Johannes, Sattler, Patrick, and Carle, Georg
    In Proc. Passive and Active Measurement (PAM) Jun 2023
  3. The Performance of Post-Quantum TLS 1.3
    Sosnowski, Markus, Wiedner, Florian, Hauser, Eric, Steger, Lion, Schoinianakis, Dimitrios, Gallenmüller, Sebastian, and Carle, Georg
    In Proc. International Conference on emerging Networking EXperiments and Technologies (CoNEXT) Dec 2023