Instant messaging (IM) protocols like WhatsApp have become an integral part of everyday life for many people. Private or professionally sensitive data is often exchanged in this way. In contrast to classic electronic communication media such as e-mail or SMS, all communication runs through just one organization. Many IM systems have been provided with far-reaching security guarantees, including new security goals such as “Future Secrecy”. The aim of the research tandem is to investigate the accessibility and compliance with these security goals and to focus on people as direct users of IM protocols.
Principle Investigators (PIs)
Prof. Dr. Tibor Jager
Research Group IT-Security
Facutly for Computer Science
Prof. Dr. Jörg Schwenk
Chair for Network-and Data security
Horst Görtz Institut for IT-Security
Fakultät für Informatik
Chair for Network and Data Security
- “Subversion-Resilient Public Key Encryption with Practical Watchdogs.” Bemmann, Pascal, Tibor Jager, and Rongmao Chen. In PKC 2021.
- “Combiners for AEAD.” Poettering, Bertram, and Paul Rösler in IACR Transactions on Symmetric Cryptology 2020
- “Determining the Core Primitive for Optimally Secure Ratcheting,” Balli, Fatih, Paul Rösler, and Serge Vaudenay. ASIACRYPT 2020.
- “Flexible Authenticated and Confidential Channel Establishment (FACCE): Analyzing the Noise Protocol Framework.” Dowling, Benjamin, Paul Rösler, and Jörg Schwenk. In PKC 2020.
- “Towards Bidirectional Ratcheted Key Exchange”, Bertram Poettering, Paul Rösler – In Advances in Cryptology, IACR CRYPTO 2018
- “More is Less: On the End-to-End Security of Group Chats in Signal, WhatsApp, and Threema”, Paul Rösler, Christian Mainka, Jörg Schwenk, IEEE EuroS&P 2018