Foto von Tim Fritzmann

M.Sc. Tim Fritzmann

Technische Universität München

Lehrstuhl für Sicherheit in der Informationstechnik (Prof. Sigl)


Lehrstuhl für Sicherheit in der Informationstechnik (Prof. Sigl)

Theresienstr. 90(0101)/I
80333 München

Research Interests

My research interests are summarized in the following points:

  • Post-Quantum Cryptography / Lattice-based Cryptography
  • Secure and efficient HW/SW implementations
  • Error-Correcting Codes
  • RISC-V Co-Processor Design
  • ASIC-Design

Public-Key Cryptography (PKC) builds the basis for establishing secure communication between multiple parties. However, the fast progress in the development of quantum computers represents a risk for all communication systems because large-scaled quantum computers might be able to break traditional PKC. As a consequence, there is a need to develop new algorithms based on mathematical hard problems that resist even attacks performed on quantum computers. Cryptography resisting quantum attacks is also known as Post-Quantum Cryptography.

The first part of my research is to investigate post-quantum protocols on algorithmic level. The selection of the algorithm's parameter set determines the performance characteristic, e.g. the security level of the protocol, the failure probability, and the amount of exchanged bytes. In particular, the application of strong Error-Correcting-Codes can help to improve these important characteristics.

The second part of my research is to develop secure and efficient HW/SW designs of Post-Quantum Cryptography. Employing Post-Quantum Cryptography in electronic devices is quiet challenging due to tight performance requirements as well as area and power constraints. Moreover, implementations must be secured against implementation attacks. During my research I investigate: 1.) improvement of efficiency using hardware-accelerators; 2.) HW/SW Co-Design on a FPGA-SoC; 3.) HW/SW Co-Design on a RISC-V SoC.

Open Positions

If you are interested in doing a Bachelor/Master thesis or research internship in one of my research interests, feel free to contact me.



  • Fritzmann, Tim and Sharif, Uzair and Müller-Gritschneder, Daniel and Reinbrecht, Cezar and Schlichtmann, Ulf and Sepulveda, Johanna: Towards Reliable and Secure Post-Quantum Co-Processors based on RISC-V. Design, Automation & Test in Europe (DATE) 2019, 2019Florence, Italy mehr… BibTeX


  • Braun, Konstantin and Fritzmann, Tim and Maringer, Georg and Schamberger, Thomas and Sepulveda, Johanna: Secure and Compact Full NTRU Hardware Implementation. 26th IFIP/IEEE International Conference on Very Large Scale Integration (VLSI-SoC), 2018 Verona, Italy mehr… BibTeX
  • Fritzmann, Tim and Pöppelmann, Thomas and Sepulveda, Johanna: Analysis of Error-Correcting Codes for Lattice-Based Key Exchange. Conference on Selected Areas in Cryptography (SAC), 2018Calgary, Canada, 1-22 mehr… BibTeX