Gianluca Brian

dblp:242/3149 · DBLP profile ↗
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8ranked-venue papers
7as first author
6since 2021 · last 2026
0000-0002-5352-9763ORCID · corroborated

Domains — the database's venue-derived domains; a paper can count in several

Security and privacy · 7 · 6 first-author · 5 since 2021Theory of computation · 3 · 3 first-author · 2 since 2021
YearPublicationVenuePosition
2026 Bypassing the Random-Probing Model in Masking Security Proofs
Julien Béguinot, Gianluca Brian, Loïc Masure
CRYPTO (7)2
2024 From Random Probing to Noisy Leakages Without Field-Size Dependence
Gianluca Brian, Stefan Dziembowski, Sebastian Faust
EUROCRYPT (4)1
2022 Continuously Non-malleable Codes Against Bounded-Depth Tampering
Gianluca Brian, Sebastian Faust, Elena Micheli, Daniele Venturi 0001
ASIACRYPT (4)1
2022 The Mother of All Leakages: How to Simulate Noisy Leakages via Bounded Leakage (Almost) for Free
abstract
We show that the most common flavors of noisy leakage can be simulated in the information-theoretic setting using a single query of bounded leakage, up to a small statistical simulation error and a slight loss in the leakage parameter. The latter holds true in particular for one of the most used noisy-leakage models, where the noisiness is measured using the conditional average min-entropy (Naor and Segev, CRYPTO’09 and SICOMP’12). Our reductions between noisy and bounded leakage are achieved in two steps. First, we put forward a new leakage model (dubbed the dense leakage model) and prove that dense leakage can be simulated in the information-theoretic setting using a single query of bounded leakage, up to small statistical distance. Second, we show that the most common noisy-leakage models fall within the class of dense leakage, with good parameters. Third, we prove lower bounds on the amount of bounded leakage required for simulation with sub-constant error, showing that our reductions are nearly optimal. In particular, our results imply that useful general simulation of noisy leakage based on statistical distance and mutual information is impossible. We also provide a complete picture of the relationships between different noisy-leakage models. Our result finds applications to leakage-resilient cryptography, where we are often able to lift security in the presence of bounded leakage to security in the presence of noisy leakage, both in the information-theoretic and in the computational setting. Remarkably, this lifting procedure makes only black-box use of the underlying schemes. Additionally, we show how to use lower bounds in communication complexity to prove that bounded-collusion protocols (Kumar, Meka, and Sahai, FOCS’19) for certain functions do not only require long transcripts, but also necessarily need to reveal enough information about the inputs.
Gianluca Brian, Antonio Faonio, Maciej Obremski, João Ribeiro 0002, Mark Simkin 0001, Maciej Skorski, Daniele Venturi 0001
IEEE Trans. Inf. Theory1
2021 The Mother of All Leakages: How to Simulate Noisy Leakages via Bounded Leakage (Almost) for Free
Gianluca Brian, Antonio Faonio, Maciej Obremski, João Ribeiro 0002, Mark Simkin 0001, Maciej Skorski, Daniele Venturi 0001
EUROCRYPT (2)1
2021 Continuously Non-malleable Secret Sharing: Joint Tampering, Plain Model and Capacity
Gianluca Brian, Antonio Faonio, Daniele Venturi 0001
TCC (2)1
2020 Non-malleable Secret Sharing Against Bounded Joint-Tampering Attacks in the Plain Model
Gianluca Brian, Antonio Faonio, Maciej Obremski, Mark Simkin 0001, Daniele Venturi 0001
CRYPTO (3)1
2019 Continuously Non-malleable Secret Sharing for General Access Structures
Gianluca Brian, Antonio Faonio, Daniele Venturi 0001
TCC (2)1