Associate professor at UvA (ILLC) and senior researcher at CWI
Email: C.Schaffner at uva.nl
Research lines: Cryptography in a quantum world and Quantum information science
Christian Schaffner received a diploma degree in mathematics from ETH Zurich (Switzerland) in 2003 and a PhD degree in computer science from Aarhus University (Denmark) in 2007. After three years as postdoctoral scholar at Centrum Wiskunde & Informatica (CWI), he is currently an Associate Professor of Theoretical Computer Science at the Institute for Logic, Language and Computation (ILLC) at the University of Amsterdam. He is a VENI and VIDI laureate, has served on various program committees and is currently chairing the steering committee of the annual QCrypt conference.
His research interest is quantum cryptography in a broad sense: On the one hand, he develops new quantum protocols (e.g. for position-based cryptography or homomorphic encryption), on the other hand, he studies quantum-safe cryptography and develops quantum-information-theoretic tools. He is interested in outreach and educating people about the quantum nature of the world and the implications for cryptography.
Ivan Damgård, Serge Fehr, Louis Salvail, and Christian Schaffner, Cryptography in the Bounded Quantum-Storage Model, https://arxiv.org/abs/quant-ph/0508222, In SIAM Journal of Computing, volume 37, number 6, pages 1865-1890, 2008.
Robert König, Renato Renner and Christian Schaffner, The operational meaning of min- and max-entropy, http://arxiv.org/abs/0807.1338, In IEEE Transactions on Information Theory, volume 55, number 9, pages 4337-4347, 2009.
Yfke Dulek, Christian Schaffner and Florian Speelman, Quantum homomorphic encryption for polynomial-sized circuits, http://arxiv.org/abs/1603.09717, presented at QCRYPT 2016 and at QIP 2017 (best student paper award), In CRYPTO 2016, Proceedings of Advances in Cryptology, LNCS 9816, pages 3-32, 2016.