Roman Walch

Roman Walch

Ph.D. Student/Researcher in Cryptography

Know-Center GmbH



I am a second-year Ph.D. student at Know-Center GmbH in cooperation with the Institute of Applied Information Processing and Communications (IAIK) at Graz University of Technology. Before this, I completed my BSc and Dipl.-Ing. (equivalent to MSc) in computer engineering at TU Graz, with a focus on IT-Security. My master’s thesis is the design and implementation of an FPGA-based coprocessor for signature creation and verification of Picnic, a post-quantum secure digital signature scheme.


  • Fully Homomorphic Encryption (FHE)
  • Multiparty Computation (MPC)
  • Post-Quantum Signatures
  • Efficient Implementations
  • Ciphers for MPC and FHE


  • MSc in Information and Computer Engineering, 2019

    Graz University of Technology

  • BSc in Information and Computer Engineering, 2017

    Graz University of Technology


I am currently involved with the following courses at TU Graz:

Additionally, I am supervising bachelor’s thesis, seminar projects and master’s thesis at TU Graz.

I also had the pleasure to (co-)supervise various bachelor’s and master’s thesis:

  • Patrick Schwarz: Privacy Preserving Machine Learning (co-supervised with Lukas Helminger)
  • Mathias Oberhuber: Implementation of ECDSA and MiMC with Minimal Overhead on Hardware (co-supervised with Markus Schofnegger)