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Serge Fehr

Senior Researcher, Cryptology Group, CWI Amsterdam

Professor, Mathematical Institute, Leiden University

CWI  Leiden University

Serge is a scientific staff member of the Cryptology Group at CWI, the Dutch Center for Mathematics and Computer Science in Amsterdam, and a (part-time) full professor in the Faculty of Science at Leiden University. He participates in AMSec, the Amsterdam Cyber Security Center, and he is supported by NWO, the Dutch Research Council, and by DIAMANT, the Dutch national mathematics research network on Discrete, Interactive & Algorithmic Mathematics, Algebra & Number Theory.

Research interest: Foundations of cryptology, cryptographic protocols, information-theoretic and quantum cryptography, secret sharing and secure multiparty computation.

Current and upcoming activities: Local co-organizer of QCrypt 2021. Editorial board member of Journal of Cryptology and of IEEE Transactions on Information Theory. Steering committee member of the QCrypt and the Beyond IID conference series.

Recent publication(s):
 K. Chung, S. Fehr, Y. Huang, T. Liao. On the Compressed-Oracle Technique, and Post-Quantum Security of Proofs of Sequential Work. In EUROCRYPT 2021.
 S. Fehr, C. Yuan. Robust Secret Sharing with Almost Optimal Share Size and Security Against Rushing Adversaries. In TCC 2020.
 J. Don, S. Fehr, C. Majenz. The Measure-and-Reprogram Technique 2.0: Multi-round Fiat-Shamir and More. In CRYPTO 2020.