Lorenzo Grassi

According to our database, Lorenzo Grassi authored at least 65 papers between 2015 and 2025.

Collaborative distances:

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

2025

On generalizations of the Lai-Massey scheme.

Lorenzo Grassi

Des. Codes Cryptogr., October, 2025

Poseidon and Neptune: Gröbner Basis Cryptanalysis Exploiting Subspace Trails.

Lorenzo Grassi, Katharina Koschatko, Christian Rechberger

IACR Cryptol. ePrint Arch., 2025

Poseidon2b: A Binary Field Version of Poseidon2.

Lorenzo Grassi, Dmitry Khovratovich, Katharina Koschatko, Christian Rechberger, Markus Schofnegger, Verena Schröppel

IACR Cryptol. ePrint Arch., 2025

Skyscraper: Fast Hashing on Big Primes.

Clémence Bouvier, Lorenzo Grassi, Dmitry Khovratovich, Katharina Koschatko, Christian Rechberger, Fabian Schmid, Markus Schofnegger

IACR Cryptol. ePrint Arch., 2025

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 Cryptol. ePrint Arch., 2025

2024

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

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 Cryptol. ePrint Arch., 2024

Generalized Feistel Ciphers for Efficient Prime Field Masking - Full Version.

Lorenzo Grassi, Loïc Masure, Pierrick Méaux, Thorben Moos, François-Xavier Standaert

IACR Cryptol. ePrint Arch., 2024

Minimize the Randomness in Rasta-Like Designs: How Far Can We Go?

Lorenzo Grassi, Fukang Liu, Christian Rechberger, Fabian Schmid, Roman Walch, Qingju Wang

IACR Cryptol. ePrint Arch., 2024

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

Proceedings of the Selected Areas in Cryptography - SAC 2024, 2024

Generalized Feistel Ciphers for Efficient Prime Field Masking.

Lorenzo Grassi, Loïc Masure, Pierrick Méaux, Thorben Moos, François-Xavier Standaert

Proceedings of the Advances in Cryptology - EUROCRYPT 2024, 2024

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

Proceedings of the Advances in Cryptology - ASIACRYPT 2024, 2024

2023

Bounded Surjective Quadratic Functions over Fnp for MPC-/ZK-/FHE-Friendly Symmetric Primitives.

Lorenzo Grassi

IACR Trans. Symmetric Cryptol., 2023

Invertible Quadratic Non-Linear Functions over 픽_pⁿ via Multiple Local Maps.

Ginevra Giordani, Lorenzo Grassi, Silvia Onofri, Marco Pedicini

IACR Cryptol. ePrint Arch., 2023

Hash Functions Monolith for ZK Applications: May the Speed of SHA-3 be With You.

Lorenzo Grassi, Dmitry Khovratovich, Reinhard Lüftenegger, Christian Rechberger, Markus Schofnegger, Roman Walch

IACR Cryptol. ePrint Arch., 2023

From Farfalle to Megafono via Ciminion: The PRF Hydra for MPC Applications.

Lorenzo Grassi, Morten Øygarden, Markus Schofnegger, Roman Walch

Proceedings of the Advances in Cryptology - EUROCRYPT 2023, 2023

Coefficient Grouping for Complex Affine Layers.

Fukang Liu, Lorenzo Grassi, Clémence Bouvier, Willi Meier, Takanori Isobe

Proceedings of the Advances in Cryptology - CRYPTO 2023, 2023

Horst Meets Fluid-SPN: Griffin for Zero-Knowledge Applications.

Lorenzo Grassi, Yonglin Hao, Christian Rechberger, Markus Schofnegger, Roman Walch, Qingju Wang

Proceedings of the Advances in Cryptology - CRYPTO 2023, 2023

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

Proceedings of the Advances in Cryptology - CRYPTO 2023, 2023

Poseidon2: A Faster Version of the Poseidon Hash Function.

Lorenzo Grassi, Dmitry Khovratovich, Markus Schofnegger

Proceedings of the Progress in Cryptology - AFRICACRYPT 2023, 2023

Invertible Quadratic Non-linear Functions over $\mathbb {F}_p^n$ via Multiple Local Maps.

Ginevra Giordani, Lorenzo Grassi, Silvia Onofri, Marco Pedicini

Proceedings of the Progress in Cryptology - AFRICACRYPT 2023, 2023

2022

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

Invertible Quadratic Non-Linear Layers for MPC-/FHE-/ZK-Friendly Schemes over Fnp Application to Poseidon.

Lorenzo Grassi, Silvia Onofri, Marco Pedicini, Luca Sozzi

IACR Trans. Symmetric Cryptol., 2022

The Legendre Symbol and the Modulo-2 Operator in Symmetric Schemes over Fnp Preimage Attack on Full Grendel.

Lorenzo Grassi, Dmitry Khovratovich, Sondre Rønjom, Markus Schofnegger

IACR Trans. Symmetric Cryptol., 2022

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

A New Feistel Approach Meets Fluid-SPN: Griffin for Zero-Knowledge Applications.

Lorenzo Grassi, Yonglin Hao, Christian Rechberger, Markus Schofnegger, Roman Walch, Qingju Wang

IACR Cryptol. ePrint Arch., 2022

Weak Bijective Quadratic Functions over 픽_pⁿ.

Lorenzo Grassi

IACR Cryptol. ePrint Arch., 2022

On Generalizations of the Lai-Massey Scheme: the Birth of Amaryllises.

Lorenzo Grassi

IACR Cryptol. ePrint Arch., 2022

Reinforced Concrete: A Fast Hash Function for Verifiable Computation.

Lorenzo Grassi, Dmitry Khovratovich, Reinhard Lüftenegger, Christian Rechberger, Markus Schofnegger, Roman Walch

Proceedings of the 2022 ACM SIGSAC Conference on Computer and Communications Security, 2022

Security of Truncated Permutation Without Initial Value.

Lorenzo Grassi, Bart Mennink

Proceedings of the Advances in Cryptology - ASIACRYPT 2022, 2022

Truncated Differential Properties of the Diagonal Set of Inputs for 5-Round AES.

Lorenzo Grassi, Christian Rechberger

Proceedings of the Information Security and Privacy - 27th Australasian Conference, 2022

2021

Proving Resistance Against Infinitely Long Subspace Trails: How to Choose the Linear Layer.

Lorenzo Grassi, Christian Rechberger, Markus Schofnegger

IACR Trans. Symmetric Cryptol., 2021

Invertible Quadratic Non-Linear Layers for MPC-/FHE-/ZK-Friendly Schemes over 픽_pⁿ.

Lorenzo Grassi, Silvia Onofri, Marco Pedicini, Luca Sozzi

IACR Cryptol. ePrint Arch., 2021

The Legendre Symbol and the Modulo-2 Operator in Symmetric Schemes over (F_p)^n.

Lorenzo Grassi, Dmitry Khovratovich, Sondre Rønjom, Markus Schofnegger

IACR Cryptol. ePrint Arch., 2021

Pasta: A Case for Hybrid Homomorphic Encryption.

Christoph Dobraunig, Lorenzo Grassi, Lukas Helminger, Christian Rechberger, Markus Schofnegger, Roman Walch

IACR Cryptol. ePrint Arch., 2021

Reinforced Concrete: Fast Hash Function for Zero Knowledge Proofs and Verifiable Computation.

Mario Barbara, Lorenzo Grassi, Dmitry Khovratovich, Reinhard Lüftenegger, Christian Rechberger, Markus Schofnegger, Roman Walch

IACR Cryptol. ePrint Arch., 2021

Poseidon: A New Hash Function for Zero-Knowledge Proof Systems.

Lorenzo Grassi, Dmitry Khovratovich, Christian Rechberger, Arnab Roy, Markus Schofnegger

Proceedings of the 30th USENIX Security Symposium, 2021

Ciminion: Symmetric Encryption Based on Toffoli-Gates over Large Finite Fields.

Christoph Dobraunig, Lorenzo Grassi, Anna Guinet, Daniël Kuijsters

Proceedings of the Advances in Cryptology - EUROCRYPT 2021, 2021

2020

Weak Linear Layers in Word-Oriented Partial SPN and HADES-Like Ciphers.

Lorenzo Grassi, Christian Rechberger, Markus Schofnegger

IACR Cryptol. ePrint Arch., 2020

Higher-Order Differentials of Ciphers with Low-Degree S-Boxes.

Carlos Cid, Lorenzo Grassi, Reinhard Lüftenegger, Christian Rechberger, Markus Schofnegger

IACR Cryptol. ePrint Arch., 2020

Revisiting Gilbert's known-key distinguisher.

Lorenzo Grassi, Christian Rechberger

Des. Codes Cryptogr., 2020

Weak-Key Distinguishers for AES.

Lorenzo Grassi, Gregor Leander, Christian Rechberger, Cihangir Tezcan, Friedrich Wiemer

Proceedings of the Selected Areas in Cryptography - SAC 2020, 2020

Algebraic Key-Recovery Attacks on Reduced-Round Xoofff.

Tingting Cui, Lorenzo Grassi

Proceedings of the Selected Areas in Cryptography - SAC 2020, 2020

Mixture Integral Attacks on Reduced-Round AES with a Known/Secret S-Box.

Lorenzo Grassi, Markus Schofnegger

Proceedings of the Progress in Cryptology - INDOCRYPT 2020, 2020

On a Generalization of Substitution-Permutation Networks: The HADES Design Strategy.

Lorenzo Grassi, Reinhard Lüftenegger, Christian Rechberger, Dragos Rotaru, Markus Schofnegger

Proceedings of the Advances in Cryptology - EUROCRYPT 2020, 2020

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

Proceedings of the Advances in Cryptology - ASIACRYPT 2020, 2020

2019

Weak-Key Subspace Trails and Applications to AES.

Lorenzo Grassi, Gregor Leander, Christian Rechberger, Cihangir Tezcan, Friedrich Wiemer

IACR Cryptol. ePrint Arch., 2019

Starkad and Poseidon: New Hash Functions for Zero Knowledge Proof Systems.

Lorenzo Grassi, Daniel Kales, Dmitry Khovratovich, Arnab Roy, Christian Rechberger, Markus Schofnegger

IACR Cryptol. ePrint Arch., 2019

Probabilistic Mixture Differential Cryptanalysis on Round-Reduced AES.

Lorenzo Grassi

Proceedings of the Selected Areas in Cryptography - SAC 2019, 2019

Feistel Structures for MPC, and More.

Martin R. Albrecht, Lorenzo Grassi, Léo Perrin, Sebastian Ramacher, Christian Rechberger, Dragos Rotaru, Arnab Roy, Markus Schofnegger

Proceedings of the Computer Security - ESORICS 2019, 2019

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

Proceedings of the Advances in Cryptology - ASIACRYPT 2019, 2019

2018

Mixture Differential Cryptanalysis: a New Approach to Distinguishers and Attacks on round-reduced AES.

Lorenzo Grassi

IACR Trans. Symmetric Cryptol., 2018

New Rigorous Analysis of Truncated Differentials for 5-round AES.

Lorenzo Grassi, Christian Rechberger

IACR Cryptol. ePrint Arch., 2018

Zero-Sum Partitions of PHOTON Permutations.

Qingju Wang, Lorenzo Grassi, Christian Rechberger

Proceedings of the Topics in Cryptology - CT-RSA 2018, 2018

MixColumns Properties and Attacks on (Round-Reduced) AES with a Single Secret S-Box.

Lorenzo Grassi

Proceedings of the Topics in Cryptology - CT-RSA 2018, 2018

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

Proceedings of the Advances in Cryptology - CRYPTO 2018, 2018

Quantum Algorithms for the k -xor Problem.

Lorenzo Grassi, María Naya-Plasencia, André Schrottenloher

Proceedings of the Advances in Cryptology - ASIACRYPT 2018, 2018

2017

New Limits for AES Known-Key Distinguishers.

Lorenzo Grassi, Christian Rechberger

IACR Cryptol. ePrint Arch., 2017

Mixture Differential Cryptanalysis: New Approaches for Distinguishers and Attacks on round-reduced AES.

Lorenzo Grassi

IACR Cryptol. ePrint Arch., 2017

A New Structural-Differential Property of 5-Round AES.

Lorenzo Grassi, Christian Rechberger, Sondre Rønjom

Proceedings of the Advances in Cryptology - EUROCRYPT 2017 - 36th Annual International Conference on the Theory and Applications of Cryptographic Techniques, Paris, France, April 30, 2017

2016

Subspace Trail Cryptanalysis and its Applications to AES.

Lorenzo Grassi, Christian Rechberger, Sondre Rønjom

IACR Cryptol. ePrint Arch., 2016

Practical Low Data-Complexity Subspace-Trail Cryptanalysis of Round-Reduced PRINCE.

Lorenzo Grassi, Christian Rechberger

Proceedings of the Progress in Cryptology - INDOCRYPT 2016, 2016

MPC-Friendly Symmetric Key Primitives.

Lorenzo Grassi, Christian Rechberger, Dragos Rotaru, Peter Scholl, Nigel P. Smart

Proceedings of the 2016 ACM SIGSAC Conference on Computer and Communications Security, 2016

MiMC: Efficient Encryption and Cryptographic Hashing with Minimal Multiplicative Complexity.

Martin R. Albrecht, Lorenzo Grassi, Christian Rechberger, Arnab Roy, Tyge Tiessen

Proceedings of the Advances in Cryptology - ASIACRYPT 2016, 2016

2015

Simulations of Optical Emissions for Attacking AES and Masked AES.

Guido Marco Bertoni, Lorenzo Grassi, Filippo Melzani

Proceedings of the Security, Privacy, and Applied Cryptography Engineering, 2015