Patrick Struck

I am leading the junior research group on Cryptography and Cyber Security. Before I joined University of Konstanz, I was a PostDoc at University of Regensburg. I received my PhD from TU Darmstadt, advised by Juliane Krämer.

I was a visiting researcher at University of Maryland both at the Joint Center for Quantum Information and Computer Science, working with Gorjan Alagic, and the Department of Electrical and Computer Engineering, working with Dana Dachman-Soled. Furthermore, I worked with Serge Fehr  while visiting the Centrum Wiskunde & Informatica in the Netherlands.

My Research

I am interested in various aspects of cryptography, ranging from symmetric encryption over public-key encryption to digital signatures.

A focus of my work is the security of cryptographic primitives against quantum computers, so-called Post-Quantum Cryptography (PQC).

Another focus is on advanced security aspects of authenticated encryption, where I have been working on security against side-channel leakage and related-key attacks. More recently, I am working on committing security of authenticated encryption.

Publications

  • On the (In)Security of the BUFF Transform
    Jelle Don, Serge Fehr, Yu-Hsuan Huang, and Patrick Struck
    CRYPTO 2024 — available as IACR ePrint archive 2023/1634
  • Hash your Keys before Signing: BUFF Security of the Additional NIST PQC Signatures
    Thomas Aulbach, Samed Düzlü, Michael Meyer, Patrick Struck, and Maximiliane Weishäupl
    PQCrypto 2024 — available as IACR ePrint archive 2024/591
  • Efficient Post-Quantum Secure Deterministic Threshold Wallets from Isogenies
    Poulami Das, Andreas Erwig, Michael Meyer, and Patrick Struck
    AsiaCCS 2024 — available as IACR ePrint archive 2023/1915
  • Post-Quantum Security of Tweakable Even-Mansour, and Applications
    Gorjan Alagic, Chen Bai, Jonathan Katz, Christian Majenz, and Patrick Struck
    EUROCRYPT 2024 — available as IACR ePrint archive 2022/1097
  • Constructing Committing and Leakage-Resilient Authenticated Encryption
    Patrick Struck and Maximiliane Weishäupl
    ToSC 2024 Issue 1 — available as IACR ePrint archive 2024/190
  • Committing AE from Sponges: Security Analysis of the NIST LWC Finalists
    Juliane Krämer, Patrick Struck, and Maximiliane Weishäupl
    Preprint — available as IACR ePrint archive 2023/1525
  • A Lightweight Identification Protocol Based on Lattices
    Samed Düzlü, Juliane Krämer, Thomas Pöppelmann, and Patrick Struck
    PKC 2023 — available as IACR ePrint archive 2023/222
  • On Quantum Ciphertext Indistinguishability, Recoverability, and OAEP
    Juliane Krämer and Patrick Struck
    PQCrypto 2022 — available as IACR ePrint archive 2022/1074
  • Sponge-based Authenticated Encryption: Security against Quantum Attackers
    Christian Janson and Patrick Struck
    PQCrypto 2022 — available as IACR ePrint archive 2022/139
  • On the Related-Key Attack Security of Authenticated Encryption Schemes
    Sebastian Faust, Juliane Krämer, Maximilian Orlt, and Patrick Struck
    SCN 2022 — available as IACR ePrint archive 2022/140
  • Quantum Indistinguishability for Public Key Encryption
    Tommaso Gagliardoni, Juliane Krämer, and Patrick Struck
    PQCrypto 2021 — available as IACR ePrint archive 2020/266
  • Security of Public Key Encryption against Resetting Attacks
    Juliane Krämer and Patrick Struck
    INDOCRYPT 2020 — available as IACR ePrint archive 2020/1316
  • Deterministic Wallets in a Quantum World
    Nabil Alkeilani Alkadri, Poulami Das, Andreas Erwig, Sebastian Faust, Juliane Krämer, Siavash Riahi, and Patrick Struck
    CCS 2020 — available as IACR ePrint archive 2020/1149
  • Secure Two-Party Computation in a Quantum World
    Niklas Büscher, Daniel Demmler, Nikolaos P. Karvelas, Stefan Katzenbeisser, Juliane Krämer, Deevashwer Rathee, Thomas Schneider, and Patrick Struck
    ACNS 2020 — available as IACR ePrint archive 2020/411
  • Leakage-Resilient Authenticated Encryption from Leakage-Resilient Pseudorandom Functions
    Juliane Krämer and Patrick Struck
    COSADE 2020 — available as IACR ePrint archive 2020/280
  • Encryption Schemes using Random Oracles: from Classical to Post-Quantum Security
    Juliane Krämer and Patrick Struck
    PQCrypto 2020 — available as IACR ePrint archive 2020/129
  • Sponges Resist Leakage: The Case of Authenticated Encryption
    Jean Paul Degabriele, Christian Janson, and Patrick Struck
    ASIACRYPT 2019 — available as IACR ePrint archive 2019/1034
  • A Linearly Homomorphic Signature Scheme From Weaker Assumptions
    Lucas Schabhüser, Johannes Buchmann, and Patrick Struck
    IMACC 2017 — available as IACR ePrint archive 2018/035
  • Linearly Homomorphic Authenticated Encryption with Provable Correctness and Public Verifiability
    Patrick Struck, Lucas Schabhüser, Denise Demirel, and Johannes Buchmann
    C2SI 2017 — available as IACR ePrint archive 2017/700

Talks

  • Committing Authenticated Encryption: NIST Finalists & Generic Composition
    Universität St.Gallen, St.Gallen, Switzerland, 02/2024
  • Security of Cryptographic Primitives in Advanced Security Notions
    19th German IT Security Congress, online, 05/2023
  • Leakage-Resilient Authenticated Encryption from (Sponge-based) Leakage-Resilient Functions
    UMD, College Park, Maryland, 12/2022
  • (Post-Quantum) Kryptographie
    Nacht.Schafft.Wissen, Regensburg, Germany, 10/2022
  • On Quantum Ciphertext Indistinguishability, Recoverability, and OAEP
    PQCrypto, online, 09/2022
  • Sponge-based Authenticated Encryption: Security against Quantum Attackers
    PQCrypto, online, 09/2022
  • Security of Post-Quantum Primitives in the Presence of Quantum Computers
    CAST Workshop, Darmstadt, Germany, 09/2022
  • Security of Cryptographic Primitives in Advanced Security Notions
    Thesis Defense, Darmstadt, 03/2022
  • Quantum Indistinguishability for Public Key Encryption
    PQCrypto, online, 07/2021
  • Security of Public Key Encryption against Resetting Attacks
    INDOCRYPT, online, 12/2020
  • Secure Two-Party Computation in a Quantum World
    ACNS, online, 10/2020
  • Quantum Indistinguishability for Public Key Encryption
    YRCS, online, 10/2020
  • Leakage-Resilient Authenticated Encryption from Leakage-Resilient Pseudorandom Functions
    COSADE, online, 10/2020
  • Encryption Schemes using Random Oracles: from Classical to Post-Quantum Security
    PQCrypto, online, 09/2020
  • Sponges Resist Leakage: The Case of Authenticated Encryption
    ASIACRYPT, Kobe, Japan, 12/2019
  • Sponges Resist Leakage: The Case of Authenticated Encryption
    31st Crypto-Day@Qualcomm, Berlin, Germany, 10/2019
  • Challenges in Post-Quantum Security Reductions
    29th Crypto-Day@Bosch, Renningen, Germany, 09/2018
  • Linearly Homomorphic Authenticated Encryption with Provable Correctness and Public Verifiability
    C2SI, Rabat, Morocco, 04/2017