Benedikt Wagner

I am a computer science researcher working in the area of public-key cryptography. Currently, I am doing my PhD at CISPA Helmholtz Center for Information Security, where I am supervised by Julian Loss. I did my Bachelor's and Master's degree 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 programming in various languages, efficient algorithms, and theoretical computer science in general.

Publications

• 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