Welcome

to the webpages of the "Codes and Cryptography" research group. In the research group, we develop and investigate cryptographic methods, especially for the protection of privacy. Our interests and works range from the complexity-theoretical and algorithmic foundations of cryptographic techniques to the design and proof of the security of cryptographic primitives and to the efficient implementation of these primitives. The focus is on lattice-based primitives and rationally secure primitives. Lattice-based methods use methods from the (algorithmic) geometry of numbers and are considered promising candidates for methods that resist attacks from quantum computers, i.e. are post-quantum secure. While cryptography usually considers malicious attackers, rationally secure cryptography studies methods that are secure against selfish attackers, where selfishness is defined in terms of game theory.

Research

Current research foci

Our research page provides more details on current as well as former projects and research foci.

Current projects

PhoQuant: Photonische Quantencomputer - Quantencomputing Testplattform

Duration: 2022 - 2026 Funded by: BMBF

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Quantum Photonic Technology Education – ein Ausbildungsprogramm in den photonischen Quantentechnologien

Duration: 2022 - 2024 Funded by: BMBF

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PhoQC: Photonisches Quantencomputing

Duration: 2021 - 2024 Funded by: MKW NRW, EIN Quantum NRW

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Netzwerk für photonische Quantensysteme (PhoQSNET)

Duration: 2022 - 2027 Funded by: DFG

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Teaching

On the teaching page we inform you about our lectures and seminars, list open topics for theses, provide templates for presentations and theses, and offer a FAQ for seminars.

 

Publications

Team

Prof. Dr. Johannes Blömer

Codes and Cryptography

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Claudia Jahn

Codes and Cryptography

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Henrik Bröcher

Codes and Cryptography

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Laurens Porzenheim

Codes and Cryptography

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Yinzi Xiao

Codes and Cryptography

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Contact

Image of Professor Blömer

Prof. Dr. Johannes Blömer

Faculty of Computer Science, Electrical Engineering and Mathematics » Department of Computer Science » Codes and Cryptography

Room O4.258
Paderborn University
Pohlweg 51
33098 Paderborn

Office hours

Do, 11:00-12:00