Roman Walch

Dipl.-Ing. BSc

Cryptology & Privacy, PhD Student

Roman Walch is currently 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, he completed his BSc and Dipl.-Ing. (equivalent to MSc) in computer engineering at TU Graz, with a focus on IT-Security. He is advised by Prof. Christian Rechberger. His 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.
Roman Walch


My research interests include (and are not limited to):

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


I teach cryptography as part of:


Multi-Party Revocation in Sovrin: Performance through Distributed Trust

Helminger L., Kales D., Ramacher S., Walch R.
Topics in Cryptology , CT-RSA 2021 - The Cryptographers Track at the RSA Conference 2021, Proceedings, RSA Conference 2021

Efficient FPGA Implementations of LowMC and Picnic

Kales D., Ramacher S., Rechberger C., Walch R., Werner M.
Topics in Cryptology – CT-RSA 2020 - The Cryptographers Track at the RSA Conference 2020, Proceedings, The Cryptographers’ Track at the RSA Conference 2020, San Francisco, CA, USA, February 24–28, 2020, Proceedings, CT-RSA 2020, 417-441, (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 12006 LNCS)

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