Below you find a list of my publications (also summarized in my Google Scholar profile), and below that, a selection of talks I gave.
My PhD thesis “Generic Constructions of Quantum-Resistant Cryptosystems” is available on the RUB Repository.
Publications
(preprints below)
Verifiable Decapsulation: Recognizing Faulty Implementations of Post-Quantum KEMs [pdf]
To appear at Crypto 2025
with Lewis Glabush, Felix Günther, and Douglas Stebila
A Critical Analysis of Deployed Use Cases for Quantum Key Distribution and Comparison with Post- Quantum Cryptography [pdf]
To appear in EPJ Quantum Technology, 2025
with Nick Aquina, Bruno Cimoli, Soumya Das, Fiona Johanna Weber, Chigo Okonkwo, Simon Rommel, Boris kori, Idelfonso Tafur Monroy, Sebastian Verschoor
(Un) breakable curses — re-encryption in the Fujisaki-Okamoto transform [pdf]
Eurocrypt 2025
with Andreas Hülsing, Christian Majenz, and Fabrizio Sisinni
Treating Dishonest Ciphertexts in Post-quantum KEMs [pdf]
PQCrypto 2025
with Mikhail Kudinov
Towards post-quantum secure PAKE-A tight security proof for OCAKE in the BPR model [pdf]
CANS 2024
with Nouri Alnahawi, Andreas Hülsing, and Silvia Ritsch
A note on Failing gracefully: Completing the picture for explicitly rejecting Fujisaki-Okamoto transforms using worst-case correctness [pdf]
PQCrypto 2024
with Christian Majenz
A Thorough Treatment of Highly-Efficient NTRU Instantiations [pdf]
PKC 2023
with Julien Duman, Eike Kiltz, Vadim Lyubashevsky, Gregor Seiler and Dominique Unruh
Failing gracefully: decryption failures and the Fujisaki-Okamoto transform [pdf]
Asciacrypt 2022
with Andreas Hülsing and Christian Majenz
Tight adaptive reprogramming in the QROM [pdf]
Asciacrypt 2021, Talk at QIP 2021
with Alex B. Grilo, Andreas Hülsing, and Christian Majenz
Faster Lattice-Based KEMs via a Generic Fujisaki-Okamoto Transform for Multi-User Security in the QROM [pdf]
ACM CCS 21, Talk at 3rd PQC Standardization Conference 2021
with Julien Duman, Eike Kiltz, Vadim Lyubashevsky, and Gregor Seiler
Generic Authenticated Key Exchange in the Quantum Random Oracle Model [pdf]
PKC 2020
with Eike Kiltz, Sven Schäge, and Dominique Unruh
Tighter proofs of CCA security in the Quantum Random Oracle Model [pdf]
TCC 2019
with Nina Bindel, Mike Hamburg, Andreas Hülsing, and Edoardo Persichetti
A Modular Analysis of the Fujisaki-Okamoto Transformation [pdf]
TCC 2017
with Dennis Hofheinz and Eike Kiltz
Preprints
Tight Multi-challenge Security Reductions for Key Encapsulation Mechanisms [pdf]
Eprint report, 2025
with Lewis Glabush and Douglas Stebila
CAKE Requires Programming — On the Provable Post-Quantum Security of (O)CAKE [pdf]
Eprint report, 2025
with Andreas Hülsing, Mikhail Kudinov, and Silvia Ritsch
Report on evaluation of KpqC Round-2 candidates [pdf]
Eprint report, 2024
with Daniel J. Bernstein, Jolijn Cottaar, Emanuele Di Giandomenico, Andreas Hülsing, Mikhail Kudinov, Tanja Lange, Mairon Mahzoun, Matthias Meijers, Alex Pellegrini, Alberto Ravagnani, Silvia Ritsch, Sven Schäge, Tianxin Tang, Monika Trimoska, Marc Vorstermans and Fiona Johanna Weber
Report on evaluation of KpqC candidates [pdf]
Eprint report, 2023
with Jolijn Cottaar, Andreas Hülsing, Tanja Lange, Mohammad Mahzoun, Alex Pellegrini, Alberto Ravagnani, Sven Schäge, Monika Trimoska, and Benne de Weger
Invited & Conference Talks:
NIST Workshop on Guidance for KEMs (virtual, 26/02/2025)
Advanced FO Concepts: Verifiable Decapsulation, Multi-user Security, and Rejection Modes (content preparation, held by L. Glabush) [ pdf slides ]
PQCrypto’24 (Oxford, UK, 12/06/2024)
Explicitly rejecting Fujisaki-Okamoto transforms and worst-case correctness – completing the picture [ pdf slides ] [ video ]
CrySP Speaker Series on Privacy (Waterloo, Canada, 03/04/2024)
Fujisaki-Okamoto — a recipe for post-quantum public key encryption [ pdf slides ] [ video ]
QSI spring school on post-quantum crypto 24 (Porto, Portugal, 12/03/2024)
Intro to crypto [ pdf slides, duration 90 mins ] [ video (talk starts at 4:35) ]
Summer School on real-world crypto and privacy 23 (Vodice, Croatia, 09/06/2023)
Provable security and the quantum random oracle model [ slides including some explanatory notes ]
Asiacrypt 22 (Taipei, Taiwan, 09/12/2022)
Failing gracefully: Decryption failures and the Fujisaki-Okamoto transform [ slides ]
Stichting Nationaal Informatica Congres (SNiC) 22 (Eindhoven, Netherlands, 30/11/2022)
Post-quantum cryptology [ slides ]
Asiacrypt 21 (virtual, 08/12/2021)
Tight adaptive reprogramming in the QROM [ video ] [ slides ]
Quiques Workshop (affiliated event to Eurocrypt’21), Zagreb, Croatia (17/10/2021)
The one-way to hiding Lemma [ video ] [ slides ]
Simula UiB, Bergen, Norway (virtual, 07/2020)
Generic Authenticated Key Exchange in the Quantum Random Oracle Model [ video ]
PKC 2020 (06/2020)
Generic Authenticated Key Exchange in the Quantum Random Oracle Model [ video ] [ slides ]
Simons Institute’s lattice meeting (04/2020)
CCA encryption in the Quantum Random Oracle Model [ video ] [ slides ]
QuSoft Seminar, Centrum Wiskunde & Informatica (CWI), Amsterdam, Netherlands (09/2019)
The Fujisaki-Okamoto Transformation – A generic transformation to achieve post-quantum security
ENS lattice and crypto meeting, ENS de Lyon, France (04/2018)
A Modular Analysis of the Fujisaki-Okamoto Transformation
TCC 2017, Johns Hopkins University, USA (11/2017)
A Modular Analysis of the Fujisaki-Okamoto Transformation