Benedikt Wagner
I am a cryptography researcher working at the Ethereum Foundation. In May 2024, I completed my PhD at CISPA Helmholtz Center for Information Security and Saarland University, where I was supervised by Julian Loss. I did my Bachelor's and Master's degree in Computer Science at Karlsruhe Institute of Technology, where I received the award for the best graduation at the department of computer science in 2021/2022. For my Bachelor's and Master's Thesis, which were supervised by Jiaxin Pan, I obtained the Sick Science Award for the best thesis in 2019 and 2021.
In addition to my passion for cryptography, I am also interested in efficient algorithms and data structures, and theoretical computer science in general.
Publications
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Sublinear-Round Broadcast without Trusted Setup
with Andreea B. Alexandru, Julian Loss, Charalampos Papamanthou, and Giorgos Tsimos
SODA 2025 -
Foundations of Data Availability Sampling
with Mathias Hall-Andersen and Mark Simkin
Communications in Cryptology, Volume 1 (2024) -
Tightly Secure Non-Interactive BLS Multi-Signatures
with Renas Bacho
ASIACRYPT 2024 -
HARTS: High-Threshold, Adaptively Secure, and Robust Threshold Schnorr Signatures
with Renas Bacho, Julian Loss, and Gilad Stern
ASIACRYPT 2024 -
Practical Blind Signatures in Pairing-Free Groups
with Michael Klooss and Michael Reichle
ASIACRYPT 2024 -
Jackpot: Non-Interactive Aggregatable Lotteries
with Nils Fleischhacker, Mathias Hall-Andersen and Mark Simkin
ASIACRYPT 2024 -
FRIDA: Data Availability Sampling from FRI
with Mathias Hall-Andersen and Mark Simkin
CRYPTO 2024 -
Twinkle: Threshold Signatures from DDH with Full Adaptive Security
with Renas Bacho, Julian Loss, Stefano Tessaro, and Chenzhi Zhu
EUROCRYPT 2024 -
Toothpicks: More Efficient Fork-Free Two-Round Multi-Signatures
with Jiaxin Pan
EUROCRYPT 2024 -
A Holistic Security Analysis of Monero Transactions
with Cas Cremers and Julian Loss
EUROCRYPT 2024 -
Sweep-UC: Swapping Coins Privately
with Lucjan Hanzlik, Julian Loss, and Sri AravindaKrishnan Thyagarajan
IEEE S&P 2024 -
Tighter Security for Generic Authenticated Key Exchange in the QROM
with Jiaxin Pan and Runzhi Zeng
ASIACRYPT 2023 -
Lattice-based Authenticated Key Exchange with Tight Security
with Jiaxin Pan and Runzhi Zeng
CRYPTO 2023 -
Chopsticks: Fork-Free Two-Round Multi-Signatures from Non-Interactive Assumptions
with Jiaxin Pan
EUROCRYPT 2023 -
Rai-Choo! Evolving Blind Signatures to the Next Level
with Lucjan Hanzlik and Julian Loss
EUROCRYPT 2023 - Token meets Wallet: Formalizing Privacy and Revocation for FIDO2
with Lucjan Hanzlik and Julian Loss
IEEE S&P 2023 - Generic Constructions of Master-Key KDM Secure Attribute-based Encryption
with Jiaxin Pan and Chen Qian
Designs, Codes and Cryptography 2023 - PI-Cut-Choo and Friends: Compact Blind Signatures via Parallel Instance Cut-and-Choose and More
with Rutchathon Chairattana-Apirom, Lucjan Hanzlik, Julian Loss, and Anna Lysyanskaya
CRYPTO 2022 - Lattice-based Signatures with Tight Adaptive Corruptions and More
with Jiaxin Pan
PKC 2022 - Short Identity-Based Signatures with Tight Security from Lattices
with Jiaxin Pan
PQCrypto 2021 - Understanding Counterexamples for Relational Properties with DIbugger
with Mihai Herda, Michael Kirsten, Etienne Brunner, Joana Plewnia, Ulla Scheler, Chiara Staudenmaier, Pascal Zwick and Bernhard Beckert
HCVS/PERR@ETAPS 2019 - Berührungslos Musizieren - Entwicklung eines berührungsfrei spielbaren Instruments mit automatischer Begleitung
Junge Wissenschaft 112, 2017