Forward-Secure 0-RTT Goes Live: Implementation and Performance Analysis in QUIC. - Fynn Dallmeier; Jan Peter Drees; Kai Gellert; Tobias Handirk; Tibor Jager; Jonas Klauke; Simon Nachtigall; Timo Renzelmann; Rudi Wolf (IACR Cryptol. ePrint Arch., 2020)

T0RTT: Non-Interactive Immediate Forward-Secret Single-Pass Circuit Construction. - Sebastian Lauer; Kai Gellert; Robert Merget; Tobias Handirk; Jörg Schwenk (Proc. Priv. Enhancing Technol., 2020)

Construction and Security Analysis of 0-RTT Protocols. - Kai Gellert (2020)

A Modern View on Forward Security. - Colin Boyd; Kai Gellert (Comput. J., 2021)

Symmetric Key Exchange with Full Forward Security and Robust Synchronization. - Colin Boyd; Gareth T. Davies; Bor de Kock; Kai Gellert; Tibor Jager; Lise Millerjord (IACR Cryptol. ePrint Arch., 2021)

More Efficient Digital Signatures with Tight Multi-User Security. - Denis Diemert; Kai Gellert; Tibor Jager; Lin Lyu 001 (IACR Cryptol. ePrint Arch., 2021)

Digital Signatures with Memory-Tight Security in the Multi-Challenge Setting. - Denis Diemert; Kai Gellert; Tibor Jager; Lin Lyu 001 (IACR Cryptol. ePrint Arch., 2021)

A Formal Security Analysis of Session Resumption Across Hostnames. - Kai Gellert; Tobias Handirk (IACR Cryptol. ePrint Arch., 2021)

On Fingerprinting Attacks and Length-Hiding Encryption. - Kai Gellert; Tibor Jager; Lin Lyu 001; Tom Neuschulten (IACR Cryptol. ePrint Arch., 2021)

Session Resumption Protocols and Efficient Forward Security for TLS 1.3 0-RTT. - Nimrod Aviram; Kai Gellert; Tibor Jager (J. Cryptol., 2021)

Bloom Filter Encryption and Applications to Efficient Forward-Secret 0-RTT Key Exchange. - David Derler; Kai Gellert; Tibor Jager; Daniel Slamanig; Christoph Striecks (J. Cryptol., 2021)

Security Analysis of the WhatsApp End-to-End Encrypted Backup Protocol. - Gareth T. Davies; Sebastian H. Faller; Kai Gellert; Tobias Handirk; Julia Hesse; Máté Horváth; Tibor Jager (IACR Cryptol. ePrint Arch., 2023)

On Optimal Tightness for Key Exchange with Full Forward Secrecy via Key Confirmation. - Kai Gellert; Kristian Gjøsteen; Håkon Jacobsen; Tibor Jager (IACR Cryptol. ePrint Arch., 2023)

Bare PAKE: Universally Composable Key Exchange from just Passwords. - Manuel Barbosa; Kai Gellert; Julia Hesse; Stanislaw Jarecki (IACR Cryptol. ePrint Arch., 2024)