Lennart Braun

According to our database, Lennart Braun authored at least 15 papers between 2021 and 2025.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2025

Low-Bandwidth Mixed Arithmetic in VOLE-Based ZK from Low-Degree PRGs.

Amit Agarwal, Carsten Baum, Lennart Braun, Peter Scholl

Proceedings of the Advances in Cryptology - EUROCRYPT 2025, 2025

Shorter, Tighter, FAESTer: Optimizations and Improved (QROM) Analysis for VOLE-in-the-Head Signatures.

Carsten Baum, Ward Beullens, Lennart Braun, Cyprien Delpech de Saint Guilhem, Michael Klooß, Christian Majenz, Shibam Mukherjee, Emmanuela Orsini, Sebastian Ramacher, Christian Rechberger, Lawrence Roy, Peter Scholl

Proceedings of the Advances in Cryptology - CRYPTO 2025, 2025

2024

Malicious Security for Sparse Private Histograms.

Lennart Braun, Adrià Gascón, Mariana Raykova, Phillipp Schoppmann, Karn Seth

IACR Cryptol. ePrint Arch., 2024

An Improved Threshold Homomorphic Cryptosystem Based on Class Groups.

Lennart Braun, Guilhem Castagnos, Ivan Damgård, Fabien Laguillaumie, Kelsey Melissaris, Claudio Orlandi, Ida Tucker

IACR Cryptol. ePrint Arch., 2024

2023

Ramen: Souper Fast Three-Party Computation for RAM Programs.

Lennart Braun, Mahak Pancholi, Rahul Rachuri, Mark Simkin

IACR Cryptol. ePrint Arch., 2023

FUSE - Flexible File Format and Intermediate Representation for Secure Multi-Party Computation.

Lennart Braun, Moritz Huppert, Nora Khayata, Thomas Schneider, Oleksandr Tkachenko

IACR Cryptol. ePrint Arch., 2023

ZK-for-Z2K: MPC-in-the-Head Zero-Knowledge Proofs for ℤ_2^k.

Lennart Braun, Cyprien Delpech de Saint Guilhem, Robin Jadoul, Emmanuela Orsini, Nigel P. Smart, Titouan Tanguy

IACR Cryptol. ePrint Arch., 2023

Publicly Verifiable Zero-Knowledge and Post-Quantum Signatures From VOLE-in-the-Head.

Carsten Baum, Lennart Braun, Cyprien Delpech de Saint Guilhem, Michael Klooß, Emmanuela Orsini, Lawrence Roy, Peter Scholl

IACR Cryptol. ePrint Arch., 2023

ZK-for-Z2K: MPC-in-the-Head Zero-Knowledge Proofs for $\mathbb {Z}_{2^k}$.

Lennart Braun, Cyprien Delpech de Saint Guilhem, Robin Jadoul, Emmanuela Orsini, Nigel P. Smart, Titouan Tanguy

Proceedings of the Cryptography and Coding - 19th IMA International Conference, 2023

2022

MOTION - A Framework for Mixed-Protocol Multi-Party Computation.

Lennart Braun, Daniel Demmler, Thomas Schneider, Oleksandr Tkachenko

ACM Trans. Priv. Secur., 2022

Secure Multiparty Computation from Threshold Encryption based on Class Groups.

Lennart Braun, Ivan Damgård, Claudio Orlandi

IACR Cryptol. ePrint Arch., 2022

Mozℤ_2^karella: Efficient Vector-OLE and Zero-Knowledge Proofs Over ℤ_2^k.

Carsten Baum, Lennart Braun, Alexander Munch-Hansen, Peter Scholl

IACR Cryptol. ePrint Arch., 2022

Moz$\mathbb {Z}_{2^k}$arella: Efficient Vector-OLE and Zero-Knowledge Proofs over $\mathbb {Z}_{2^k}$.

Carsten Baum, Lennart Braun, Alexander Munch-Hansen, Peter Scholl

Proceedings of the Advances in Cryptology - CRYPTO 2022, 2022

2021

Appenzeller to Brie: Efficient Zero-Knowledge Proofs for Mixed-Mode Arithmetic and ℤ_2^k.

Carsten Baum, Lennart Braun, Alexander Munch-Hansen, Peter Scholl

IACR Cryptol. ePrint Arch., 2021

Appenzeller to Brie: Efficient Zero-Knowledge Proofs for Mixed-Mode Arithmetic and Z2k.

Carsten Baum, Lennart Braun, Alexander Munch-Hansen, Benoît Razet, Peter Scholl

Proceedings of the CCS '21: 2021 ACM SIGSAC Conference on Computer and Communications Security, Virtual Event, Republic of Korea, November 15, 2021