Jonas Janneck
Jonas Janneck

PhD Student

Ruhr University Bochum

About Me

I am a fourth-year PhD student at Ruhr University Bochum under the supervision of Eike Kiltz and Peter Schwabe. My research focuses on provable security with a special interest in lattice-based constructions. In particular, I worked on the design and analysis of signature schemes and authenticated key encapsulation mechanisms.

In the fall of 2024, I visited the University of Washington to work with Stefano Tessaro.

Interests
  • Provable Security
  • Post-Quantum Cryptography
Education

  • MSc Business Mathematics, 2022

    University of Mannheim

  • BSc Business Mathematics, 2018

    University of Mannheim

Recent Publications
Jonas Janneck (2025). Bird of Prey: Practical Signature Combiners Preserving Strong Unforgeability. Cryptology ePrint Archive.
PDF Cite
Jonas Janneck, Aysan Nishaburi, Guilherme Rito (2025). Modeling Emails: On the Deniability of BCCs. Cryptology ePrint Archive.
PDF Cite
Jonas Janneck, Jonas Meers, Massimo Ostuzzi, Doreen Riepel (2025). Snake Mackerel: An Isogeny-Based AKEM Leveraging Randomness Reuse. Cryptology ePrint Archive.
PDF Cite
Phillip Gajland, Vincent Hwang, Jonas Janneck (2025). Shadowfax: A Deniability-Preserving AKEM Combiner. Cryptology ePrint Archive.
PDF Cite Code
Phillip Gajland, Jonas Janneck, Eike Kiltz (2024). A Closer Look at Falcon. Cryptology ePrint Archive.
PDF Cite
Phillip Gajland, Jonas Janneck, Eike Kiltz (2024). Ring Signatures for Deniable AKEM: Gandalf's Fellowship. CRYPTO 2024.
PDF Cite Slides Video DOI
Joël Alwen, Jonas Janneck, Eike Kiltz, Benjamin Lipp (2023). The Pre-Shared Key Modes of HPKE. ASIACRYPT 2023.
PDF Cite Slides Video DOI
Anselme Tueno, Jonas Janneck, David Boehm (2023). A method for securely comparing integers using binary trees. PoPETS 2023.
PDF Cite DOI
Andreas Fischer, Benny Fuhry, Jörn Kußmaul, Jonas Janneck, Florian Kerschbaum, Eric Bodden (2022). Computation on encrypted data using dataflow authentication. ACM Transactions on Privacy and Security 2022.
PDF Cite DOI
Andreas Fischer, Jonas Janneck, Jörn Kussmaul, Nicolas Krätzschmar, Florian Kerschbaum, Eric Bodden (2020). PASAPTO: Policy-aware Security and Performance Trade-off Analysis--Computation on Encrypted Data with Restricted Leakage. CSF 2020.
PDF Cite DOI
Recent Talks

A Closer Look at Falcon

 Aarhus Crypto Group (2025), Aarhus, Denmark
 TU Darmstadt (2025), Darmstadt, Germany
 University of Mannheim (2025), Mannheim, Germany
 UC San Diego (2024), San Diego, CA, USA
 Microsoft Research (2024), Redmond, WA, USA

The Pre-Shared Key Modes of HPKE

 Asiacrypt (2023), Guangzhou, China

Private Set Intersection based on Fully Homomorphic Encryption

 Cybersecurity Conference (2022), Mannheim, Germany

Secure Branching Program Evaluation

 GI Crypto Day (2021), Virtual

Service

Reviewing

  • ACNS 2025
  • Crypto 2023
  • Eurocrypt 2024, 2025, 2026
  • PKC 2025
  • S&P 2026
  • TCC 2023

Contact
📧 firstname.lastname@rub.de
🏢 Building MC, Room 0/20, Universitätsstr. 140, 44801 Bochum