Giuseppe D'Alconzo

PhD Student in Pure and Applied Mathematics (PoliTo - UniTo)
giuseppe [dot] dalconzo [at] polito [dot] it

Links:

Curriculum Vitae

Google Scholar

ArXiv

ORCID

About me

Education

Hi all! I am a research assistant at the Polytechnic of Turin. My research is about post-quantum cryptography, in particular, I study code-based crypto and equivalence problems from group actions. I am also interested in the computational complexity of related problems.
I am open to collaborations and discussion!

PhD in Pure and Applied Mathematics - Politecnico di Torino, 2020 - 2024.
Master's Degree in Mathematics - Cryptography and Coding Theory curriculum. Università degli Studi di Trento, 2017 - 2020.
Bachelor’s Degree in Mathematics. Università del Salento, 2013 - 2017.

What's new

(February) The paper A Framework for Group Action-Based Multi-Signatures and Applications to LESS, MEDS, and ALTEQ has been accepted to PKC 25.
(February) On the 26th of February, I will give a Lunch Talk for the Digital Security group of the Radboud University.

Conference articles

A Framework for Group Action-Based Multi-Signatures and Applications to LESS, MEDS, and ALTEQ - Giuseppe D'Alconzo, Andrea Flamini, Alessio Meneghetti, Edoardo Signorini. Accepted at PKC 2025.
[eprint.iacr]
Don’t Use It Twice! Solving Relaxed Linear Code Equivalence Problems - Alessandro Budroni, Jesùs-Javier Chi-Dominguez, Giuseppe D’Alconzo, Antonio J. Di Scala, Mukul Kulkarni. Asiacrypt 2024 (2024).
[eprint.iacr]
Non-Interactive Commitment from Non-Transitive Group Actions - Giuseppe D'Alconzo, Andrea Flamini, Andrea Gangemi. Asiacrypt 2023 (2023).
[eprint.iacr]

Journal articles

Representations of Group Actions and their Applications in Cryptography - Giuseppe D'Alconzo, Antonio J. Di Scala. Finite Fields and Their Applications (2024).
[Open Access] [eprint.iacr]
Monomial Isomorphism for Tensors and Applications to Code Equivalence Problems - Giuseppe D'Alconzo. Designs, Codes and Cryptography (2024).
[Open Access] [eprint.iacr]
Security issues of CFS-like digital signature algorithms - Giuseppe D'Alconzo, Alessio Meneghetti, Paolo Piasenti. Journal of Discrete Mathematical Sciences & Cryptography (2024).
[arxiv]
On Two Modifications of the McEliece PKE and the CFS Signature Scheme - Giuseppe D'Alconzo. International Journal of Foundations of Computer Science (2022).
[arxiv]

Preprints

Sneaking up the Ranks: Partial Key Exposure Attacks on Rank-Based Schemes - Giuseppe D'Alconzo, Andre Esser, Andrea Gangemi, Carlo Sanna (2024).
Group Factorisation for Smaller Signatures from Cryptographic Group Actions - Giuseppe D'Alconzo, Alessio Meneghetti, Edoardo Signorini (2024).
TRIFORS: LINKable Trilinear Forms Ring Signature - Giuseppe D'Alconzo, Andrea Gangemi (2022).
Vanishing ideals of binary Hamming spheres - Giuseppe D'Alconzo, Alessio Meneghetti (2021).

Talks

Relaxed Problems from Code Equivalence (Digital Security group Lunch Talk, Radboud university, Nijmegen, February 2025).
[Slides] [link]
On the Sample Complexity of Code Equivalence Problems (Young Cryptographers in Genova 2024, Università di Genova, November 2024).
[Slides] [link]
On the Sample Complexity of Code Equivalence Problems (Workshop on Code-Based Post-Quantum Cryptography, Università Politecnica delle Marche, Ancona, November 2024).
[Slides] [link]
Group Factorisation for Smaller Signatures from Cryptographic Group Actions (WCC 2024: The Thirteenth International Workshop on Coding and Cryptography, Perugia, June 2024).
[Slides] [link]
Group Factorisation for Smaller Signatures from Cryptographic Group Actions (CBCrypto 2024 - International Workshop on Code-Based Cryptography, Zurich, May 2024).
[Slides] [link]
Representation of Group Actions and their Applications to Cryptography (ACCESS online seminar series, Online, March 2024).
[Slides] [link]
Non-Interactive Bit Commitment from Non-Transitive Group Actions (Asiacrypt 2023, Guangzhou, December 2023).
[Slides] [link]
The Linear Dimension of a Group Action (UMI Cryptography and Coding Theory 2023, Perugia, September 2023).
[Slides] [link]
On the Non-Transitivity of Group Actions in Cryptography (Young Researchers Algebra Conference, L'Aquila, July 2023).
[Slides] [link]
Group Actions and their Cryptographic Applications (Doc in Progress, Università di Trento, July 2023).
[Slides] [link]
TRIFORS: LINKable Trilinear Forms Ring Signature (Crypto Conference 2023, Politecnico di Torino, May 2023).
[Slides] [link]
The Hardness of Code Equivalence in the Sum-Rank Metric (PQCifris 2022 Workshop on Post-Quantum Cryptography, Università di Trento, October 2022).
[Slides] [link]
An Introduction to Secure Multi-Party Computation (De Cifris Augustae Taurinorum, Politecnico di Torino, June 2019).
[Slides] [link]

Organization

Number Theory and Cryptography 2024 (NTC24). Workshop at CIFRIS24, Rome, September 2024.
CrypTOgraphy Days. Turin, May 2024.

Teaching

Teaching assistant – Cryptography, Politecnico di Torino. Spring 2024.
Teaching assistant – Cryptography, Politecnico di Torino. Spring 2023.
Tutor – Linear Algebra, Università degli Studi di Trento. Fall 2019.

Supervisions

Co-supervisor of 1 master's thesis and 1 bachelor's thesis.
Co-supervisor of a curricular stage about Cryptographic Group Actions at CrypTO, the Cryptography and Number Theory research group of Polytechnic of Turin.