Dahmun Goudarzi

dblp:177/2271 · DBLP profile ↗
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9ranked-venue papers
5as first author
2since 2021 · last 2024
—ORCID · none

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Security and privacy · 9 · 5 first-author · 2 since 2021
YearPublicationVenuePosition
2024 Faster Signatures from MPC-in-the-Head
Dung Bui, Eliana Carozza, Geoffroy Couteau, Dahmun Goudarzi, Antoine Joux
ASIACRYPT (1)4
2022 Sharp: Short Relaxed Range Proofs
abstract
We provide optimized range proofs, called Sharp, in discrete logarithm and hidden order groups, based on square decomposition. In the former setting, we build on the paradigm of Couteau et al. (Eurocrypt '21) and optimize their range proof (from now on, CKLR) in several ways: (1) We introduce batching via vector commitments and an adapted ∑;-protocol. (2) We introduce a new group switching strategy to reduce communication. (3) As repetitions are necessary to instantiate CKLR in standard groups, we provide a novel batch shortness test that allows for cheaper repetitions. The analysis of our test is nontrivial and forms a core technical contribution of our work. For example, for λ = 128 bit security and B = 64 bit ranges for N = 1 (resp. N = 8) proof(s), we reduce the proof size by 34% (resp. 75%) in arbitrary groups, and by 66% (resp. 88%) in groups of order 256-bit, compared to CKLR.
Geoffroy Couteau, Dahmun Goudarzi, Michael Klooß, Michael Reichle
CCS2
2019 Unifying Leakage Models on a Rényi Day
Thomas Prest, Dahmun Goudarzi, Ange Martinelli, Alain Passelègue
CRYPTO (1)2
2018 Tight Private Circuits: Achieving Probing Security with the Least Refreshing
Sonia Belaïd, Dahmun Goudarzi, Matthieu Rivain
ASIACRYPT (2)2
2018 How to Securely Compute with Noisy Leakage in Quasilinear Complexity
Dahmun Goudarzi, Antoine Joux, Matthieu Rivain
ASIACRYPT (2)1
2017 Generalized Polynomial Decomposition for S-boxes with Application to Side-Channel Countermeasures
Dahmun Goudarzi, Matthieu Rivain, Damien Vergnaud, Srinivas Vivek 0001
CHES1
2017 How Fast Can Higher-Order Masking Be in Software?
Dahmun Goudarzi, Matthieu Rivain
EUROCRYPT (1)1
2016 On the Multiplicative Complexity of Boolean Functions and Bitsliced Higher-Order Masking
Dahmun Goudarzi, Matthieu Rivain
CHES1
2016 Lattice Attacks Against Elliptic-Curve Signatures with Blinded Scalar Multiplication
Dahmun Goudarzi, Matthieu Rivain, Damien Vergnaud
SAC1