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2025
  1. mid-pSquare: Leveraging the Strong Side-Channel Security of Prime-Field Masking in Software
    Brieuc Balon, Lorenzo Grassi, Pierrick Méaux, Thorben Moos, François-Xavier Standaert, Matthias Johann Steiner
    IACR Trans. Cryptogr. Hardw. Embed. Syst. 2025(4)
  2. Skyscraper: Fast Hashing on Big Primes
    Clémence Bouvier, Lorenzo Grassi, Dmitry Khovratovich, Katharina Koschatko, Christian Rechberger, Fabian Schmid, Markus Schofnegger
    IACR Trans. Cryptogr. Hardw. Embed. Syst. 2025(2)
  3. Poseidon and Neptune: Gröbner Basis Cryptanalysis Exploiting Subspace Trails
    Lorenzo Grassi, Katharina Koschatko, Christian Rechberger
    IACR Trans. Symmetric Cryptol. 2025(2)
  4. On Generalizations of the Lai-Massey Scheme
    Lorenzo Grassi
    Des. Codes Cryptogr. 2025(2)
2024
  1. Monolith: Circuit-Friendly Hash Functions with New Nonlinear Layers for Fast and Constant-Time Implementations
    Lorenzo Grassi, Dmitry Khovratovich, Reinhard Lüftenegger, Christian Rechberger, Markus Schofnegger, Roman Walch
    IACR Trans. Symmetric Cryptol. 2024(3)
  2. Opening the Blackbox: Collision Attacks on Round-Reduced Tip5, Tip4, Tip4' and Monolith
    Fukang Liu, Katharina Koschatko, Lorenzo Grassi, Hailun Yan, Shiyao Chen, Subhadeep Banik, Willi Meier
    IACR Trans. Symmetric Cryptol. 2024(4)
  3. General Practical Cryptanalysis of the Sum of Round-Reduced Block Ciphers and ZIP-AES
    Antonio Flórez-Gutiérrez, Lorenzo Grassi, Gregor Leander, Ferdinand Sibleyras, Yosuke Todo
    ASIACRYPT 2024(9)
  4. Generalized Feistel Ciphers for Efficient Prime Field Masking
    Lorenzo Grassi, Loïc Masure, Pierrick Méaux, Thorben Moos, François-Xavier Standaert
    EUROCRYPT 2024(3)
  5. Minimize the Randomness in Rasta-Like Designs: How Far Can We Go? - Application to Pasta
    Lorenzo Grassi, Fukang Liu, Christian Rechberger, Fabian Schmid, Roman Walch, Qingju Wang
    SAC 2024(2)
2023
  1. Pasta: A Case for Hybrid Homomorphic Encryption
    Christoph Dobraunig, Lorenzo Grassi, Lukas Helminger, Christian Rechberger, Markus Schofnegger, Roman Walch
    IACR Trans. Cryptogr. Hardw. Embed. Syst. 2023(3)
  2. Bounded Surjective Quadratic Functions over Fnp for MPC-/ZK-/FHE-Friendly Symmetric Primitives
    Lorenzo Grassi
    IACR Trans. Symmetric Cryptol. 2023(2)
  3. Invertible Quadratic Non-linear Functions over $\mathbb {F}_p^n$ via Multiple Local Maps
    Ginevra Giordani, Lorenzo Grassi, Silvia Onofri, Marco Pedicini
    Africacrypt 2023
  4. Poseidon2: A Faster Version of the Poseidon Hash Function
    Lorenzo Grassi, Dmitry Khovratovich, Markus Schofnegger
    Africacrypt 2023
  5. Cryptanalysis of Symmetric Primitives over Rings and a Key Recovery Attack on Rubato
    Lorenzo Grassi, Irati Manterola Ayala, Martha Norberg Hovd, Morten Øygarden, Håvard Raddum, Qingju Wang
    CRYPTO 2023(3)
  6. Coefficient Grouping for Complex Affine Layers
    Fukang Liu, Lorenzo Grassi, Clémence Bouvier, Willi Meier, Takanori Isobe
    CRYPTO 2023(3)
  7. Horst Meets Fluid-SPN: Griffin for Zero-Knowledge Applications
    Lorenzo Grassi, Yonglin Hao, Christian Rechberger, Markus Schofnegger, Roman Walch, Qingju Wang
    CRYPTO 2023(3)
  8. From Farfalle to Megafono via Ciminion: The PRF Hydra for MPC Applications
    Lorenzo Grassi, Morten Øygarden, Markus Schofnegger, Roman Walch
    EUROCRYPT 2023(4)
2022
  1. The Legendre Symbol and the Modulo-2 Operator in Symmetric Schemes over $\mathbb F^n_p$ - Preimage Attack on Full Grendel
    Lorenzo Grassi, Dmitry Khovratovich, Sondre Rønjom, Markus Schofnegger
    IACR Trans. Symmetric Cryptol. 2022(1)
  2. Influence of the Linear Layer on the Algebraic Degree in SP-Networks
    Carlos Cid, Lorenzo Grassi, Aldo Gunsing, Reinhard Lüftenegger, Christian Rechberger, Markus Schofnegger
    IACR Trans. Symmetric Cryptol. 2022(1)
  3. Differential Trail Search in Cryptographic Primitives with Big-Circle Chi: Application to Subterranean
    Alireza Mehrdad, Silvia Mella, Lorenzo Grassi, Joan Daemen
    IACR Trans. Symmetric Cryptol. 2022(2)
  4. Invertible Quadratic Non-Linear Layers for MPC-/FHE-/ZK-Friendly Schemes over $\mathbb F^n_p$ - Application to Poseidon
    Lorenzo Grassi, Silvia Onofri, Marco Pedicini, Luca Sozzi
    IACR Trans. Symmetric Cryptol. 2022(3)
  5. Truncated Differential Properties of the Diagonal Set of Inputs for 5-Round AES
    Lorenzo Grassi, Christian Rechberger
    ACISP 2022
  6. Security of Truncated Permutation Without Initial Value
    Lorenzo Grassi, Bart Mennink
    ASIACRYPT 2022(2)
  7. Reinforced Concrete: A Fast Hash Function for Verifiable Computation
    Lorenzo Grassi, Dmitry Khovratovich, Reinhard Lüftenegger, Christian Rechberger, Markus Schofnegger, Roman Walch
    CCS 2022
2021
  1. Proving Resistance Against Infinitely Long Subspace Trails: How to Choose the Linear Layer
    Lorenzo Grassi, Christian Rechberger, Markus Schofnegger
    IACR Trans. Symmetric Cryptol. 2021(2)
  2. Ciminion: Symmetric Encryption Based on Toffoli-Gates over Large Finite Fields
    Christoph Dobraunig, Lorenzo Grassi, Anna Guinet, Daniël Kuijsters
    EUROCRYPT 2021(2)
  3. Poseidon: A New Hash Function for Zero-Knowledge Proof Systems
    Lorenzo Grassi, Dmitry Khovratovich, Christian Rechberger, Arnab Roy, Markus Schofnegger
    USENIX Security Symposium 2021
2020
  1. Revisiting Gilbert's known-key distinguisher
    Lorenzo Grassi, Christian Rechberger, Markus Schofnegger
    Des. Codes Cryptogr. 88(7) 2020
  2. An Algebraic Attack on Ciphers with Low-Degree Round Functions: Application to Full MiMC
    Maria Eichlseder, Lorenzo Grassi, Reinhard Lüftenegger, Morten Øygarden, Christian Rechberger, Markus Schofnegger, Qingju Wang
    ASIACRYPT 2020(1)
  3. On a Generalization of Substitution-Permutation Networks: The HADES Design Strategy
    Lorenzo Grassi, Reinhard Lüftenegger, Christian Rechberger, Dragos Rotaru, Markus Schofnegger
    EUROCRYPT 2020(2)
  4. Mixture Integral Attacks on Reduced-Round AES with a Known/Secret S-Box
    Lorenzo Grassi, Markus Schofnegger
    INDOCRYPT 2020
  5. Weak-Key Distinguishers for AES
    Lorenzo Grassi, Gregor Leander, Christian Rechberger, Cihangir Tezcan, Friedrich Wiemer
    SAC 2020
  6. Algebraic Key-Recovery Attacks on Reduced-Round Xoofff
    Tingting Cui, Lorenzo Grassi
    SAC 2020
2019
  1. Algebraic Cryptanalysis of STARK-Friendly Designs: Application to MARVELlous and MiMC
    Martin R. Albrecht, Carlos Cid, Lorenzo Grassi, Dmitry Khovratovich, Reinhard Lüftenegger, Christian Rechberger, Markus Schofnegger
    ASIACRYPT 2019(3)
  2. Feistel Structures for MPC, and More
    Martin R. Albrecht, Lorenzo Grassi, Léo Perrin, Sebastian Ramacher, Christian Rechberger, Dragos Rotaru, Arnab Roy, Markus Schofnegger
    ESORICS 2019(2)
  3. Probabilistic Mixture Differential Cryptanalysis on Round-Reduced AES
    Lorenzo Grassi
    SAC 2019
2018
  1. Mixture Differential Cryptanalysis: a New Approach to Distinguishers and Attacks on round-reduced AES
    Lorenzo Grassi
    IACR Trans. Symmetric Cryptol. 2018(2)
  2. Quantum Algorithms for the k-xor Problem
    Lorenzo Grassi, María Naya-Plasencia, André Schrottenloher
    ASIACRYPT 2018(1)
  3. Rasta: A Cipher with Low ANDdepth and Few ANDs per Bit
    Christoph Dobraunig, Maria Eichlseder, Lorenzo Grassi, Virginie Lallemand, Gregor Leander, Eik List, Florian Mendel, Christian Rechberger
    CRYPTO 2018(1)
  4. MixColumns Properties and Attacks on (Round-Reduced) AES with a Single Secret S-Box
    Lorenzo Grassi
    CT-RSA 2018
  5. Zero-Sum Partitions of PHOTON Permutations
    Qingju Wang, Lorenzo Grassi, Christian Rechberger
    CT-RSA 2018
2017
  1. A New Structural-Differential Property of 5-Round AES
    Lorenzo Grassi, Christian Rechberger, Sondre Rønjom
    EUROCRYPT 2017(2)
2016
  1. Subspace Trail Cryptanalysis and its Applications to AES
    Lorenzo Grassi, Christian Rechberger, Sondre Rønjom
    IACR Trans. Symmetric Cryptol. 2016(2)
  2. MiMC: Efficient Encryption and Cryptographic Hashing with Minimal Multiplicative Complexity
    Martin R. Albrecht, Lorenzo Grassi, Christian Rechberger, Arnab Roy, Tyge Tiessen
    ASIACRYPT 2016(1)
  3. MPC-Friendly Symmetric Key Primitives
    Lorenzo Grassi, Christian Rechberger, Dragos Rotaru, Peter Scholl, Nigel P. Smart
    CCS 2016
  4. Practical Low Data-Complexity Subspace-Trail Cryptanalysis of Round-Reduced PRINCE
    Lorenzo Grassi, Christian Rechberger
    INDOCRYPT 2016
2015
  1. Simulations of Optical Emissions for Attacking AES and Masked AES
    Guido Marco Bertoni, Lorenzo Grassi, Filippo Melzani
    SPACE 2015
2014
  1. On the relativistic Lagrange-Laplace secular dynamics for extrasolar systems
    Marco Sansottera, Lorenzo Grassi, Antonio Giorgilli
    Proceedings of the International Astronomical Union 2014(9)

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