On the 20th July 2026, we were able to attend FOCI 2026 in Calgary, Canada (co-located with PETS 2026).
For the recent publications and contributions to the anti-censorship community, Felix, Nico, and Niklas were awarded with the FOCI 2026 Rising Star award.
We also presented two of our papers at FOCI:
- Insights into an Iranian Internet Shutdown- On Russia's Early Introduction of QUIC SNI Censorship
We were also able to explore the city and…
Felix Cramer completed his bachelor thesis, “Evaluating the Interaction of TLS Client Certificates and Session Tickets in Virtual Hosting,” within our System Security Group. In his work, he uncovered several authentication vulnerabilities in TLS applications arising from the combination of TLS client authentication with the session ticket mechanism.
The paper “On the Security of SSH Client Signatures”, which was co-authored by Maximilian Radoy and Juraj Somorovsky, won two awards at ACM CCS 2025: Distinguished Paper Award and Distinguished Artifact Award.
Last week Sven and Jost presented two of our group's papers at the USENIX Security Symposium in Seattle. They were accompanied by Juraj, Maximilian, Felix, and Tim. Felix and Tim are student assistants who coauthored Sven's paper and are supported by the excellence program for Master's students “PRISMA” of the CS department.
The presented papers are “STEK Sharing is Not Caring: Bypassing TLS Authentication in Web Servers using Session Tickets“…
On the 15th July 2024, Niklas presented our new publication on censorship circumvention with HTTP request smuggling in Bristol at the Free and Open Communications on the Internet conference 2024 (Summer FOCI'24).
Last week, Jost presented his work on the security of the 3MF file in Hong Kong at the 26th International Symposium on Research in Attacks, Intrusions and Defenses (RAID 2023).
Some impressions from the journey:
Three of the students who have written their thesis with us won an award for outstanding theses in the context of IT security.
We congratulate Marten Schmidt on his third place with the topic of “Analyzing the QUIC Ecosystem With the QUIC-Scanner” in the “Master’s Thesis” category, Philipp Breuch on another third place in the category “Bachelor’s Thesis” with the topic “Web Key Directory and other key exchange methods for OpenPGP”, and Niklas…
