Portmann, Christopher, Dr.

Christopher Portmann

ETH Zürich
Dr. Christopher Portmann
Institut f. Theoretische Physik
HIT K 33.3
Wolfgang-Pauli-Str. 27
8093 Zuerich

Phone: +41 44 633 73 44
Fax: +41 44 633 11 15

I'm a postdoc at the Swiss Federal Institute of Technology in Zurich (ETH Zurich), in the Quantum Information Theory group of Prof. Renato Renner. I am also actively collaborating with the Cryptography group of Prof. Ueli Maurer.

My main area of research is composability—how to define cryptographic security so that two protocols can be combined and still be secure. Renner and Maurer recently introduced a new framework for this, Abstract Cryptography (AC), that both strengthens and simplifies previously existing composable frameworks. Most of my projects are concerned with developing and applying Quantum AC.

I am working on quantum-proof extractors as well, in particular two-sources extractors and the (in)equivalence between classical- and quantum-proof extractors. I also always seem to have some active quantum key distribution project.

Some of my publications can be found here:


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