Serge Fehr

Serge Fehr is a Senior Researcher in the Cryptology Group at CWI (Centrum Wiskunde & Informatica) in Amsterdam and a part-time Professor at the Mathematical Institute of Leiden University. His research focuses on foundational aspects of cryptology, including post-quantum cryptography, information-theoretic security, zero-knowledge proofs, and secure multiparty computation. He participates in AMSec (Amsterdam Cyber Security Center) and leads work packages in the NWO-funded HAPKIDO consortium.

Education:

• M.Sc. in Mathematics from ETH Zürich (1998)
• Ph.D. in Cryptography from ETH Zürich and University of Aarhus (2003)
• Postdoc at Macquarie University (2003-2004)

Research Interests:

• Post-quantum cryptographic primitives (e.g., digital signatures, lattice-based schemes)
• Quantum-resistant protocols (e.g., non-resignable signatures, Fiat-Shamir transforms)
• Foundational security proofs in the quantum random oracle model (QROM)
• Secure multiparty computation and privacy-preserving healthcare systems

Key Activities:

• Editorial Board Member: Journal of Cryptology, IEEE Transactions on Information Theory
• Program Committee Co-Chair: EUROCRYPT 2025
• Steering Committee Member: Beyond IID Information Theory, QCrypt
• Co-organizer: Symposium Series on Post-Quantum Cryptography

Grants/Awards:

• NWO Cybersecurity consortium grant (HAPKIDO - 2021)
• NWO Veni Grant (2005)
• NWO Open & Free Competition Grants (2008, 2013)

Students/Advising: Supervised or served on committees for over 15 Ph.D. students, including work on post-quantum signatures, MPC applications, and lattice-based cryptography.

Labs/Teams: Active in CWI’s Cryptology Group and Leiden’s Mathematical Institute, collaborating with industry partners (e.g., KPN, Microsoft) in cybersecurity initiatives.