Roman Walch

Dipl.-Ing. BSc

Cryptology & Privacy, PhD Candidate

Roman Walch is a Ph.D. candidate 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 main research interests include privacy enhancing technologies (FHE, MPC, ZKP), domain-specific symmetric primitives, and their application to real-world use cases.
Roman Walch


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

  • (Fully) Homomorphic Encryption (FHE)
  • Multiparty Computation (MPC)
  • Zero-Knowledge Proofs (ZKP)
  • Post-Quantum Signatures
  • Efficient Implementations
  • Ciphers for MPC, FHE, and ZKP


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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