Search Results - "Jean-Charles Faugere"
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A survey on signature-based algorithms for computing Gröbner bases
Published in Journal of symbolic computation (01-05-2017)“…In 1965 Buchberger introduced an algorithmic approach to compute Gröbner bases. Later on, he and many others presented various attempts to improve the…”
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Sparse FGLM algorithms
Published in Journal of symbolic computation (01-05-2017)“…Given a zero-dimensional ideal I⊂K[x1,…,xn] of degree D, the transformation of the ordering of its Gröbner basis from DRL to LEX is a key step in polynomial…”
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3
Cryptanalysis of HFE, multi-HFE and variants for odd and even characteristic
Published in Designs, codes, and cryptography (01-10-2013)“…We investigate in this paper the security of HFE and Multi-HFE schemes as well as their minus and embedding variants. Multi-HFE is a generalization of the…”
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4
Polynomial-division-based algorithms for computing linear recurrence relations
Published in Journal of symbolic computation (01-03-2022)“…Sparse polynomial interpolation, sparse linear system solving or modular rational reconstruction are fundamental problems in Computer Algebra. They come down…”
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5
Cryptanalysis of the extension field cancellation cryptosystem
Published in Designs, codes, and cryptography (01-06-2021)“…In this article, we present algebraic attacks against the Extension Field Cancellation ( EFC ) scheme, a multivariate public-key encryption scheme which was…”
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Computing critical points for invariant algebraic systems
Published in Journal of symbolic computation (01-05-2023)“…Let K be a field and (f1,…,fs,ϕ) be multivariate polynomials in K[x1,…,xn] (with s<n) each invariant under the action of Sn, the group of permutations of…”
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A Distinguisher for High-Rate McEliece Cryptosystems
Published in IEEE transactions on information theory (01-10-2013)“…The Goppa Code Distinguishing (GD) problem consists in distinguishing the matrix of a Goppa code from a random matrix. The hardness of this problem is an…”
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Linear algebra for computing Gröbner bases of linear recursive multidimensional sequences
Published in Journal of symbolic computation (01-11-2017)“…The so-called Berlekamp–Massey–Sakata algorithm computes a Gröbner basis of a 0-dimensional ideal of relations satisfied by an input table. It extends the…”
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A nearly optimal algorithm to decompose binary forms
Published in Journal of symbolic computation (01-07-2021)“…Symmetric tensor decomposition is an important problem with applications in several areas, for example signal processing, statistics, data analysis and…”
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On the complexity of solving quadratic Boolean systems
Published in Journal of Complexity (01-02-2013)“…A fundamental problem in computer science is that of finding all the common zeros of m quadratic polynomials in n unknowns over F2. The cryptanalysis of…”
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Hybrid approach for solving multivariate systems over finite fields
Published in Journal of mathematical cryptology (01-09-2009)“…In this paper, we present an improved approach to solve multivariate systems over finite fields. Our approach is a tradeoff between exhaustive search and…”
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Structural cryptanalysis of McEliece schemes with compact keys
Published in Designs, codes, and cryptography (01-04-2016)“…A very popular trend in code-based cryptography is to decrease the public-key size by focusing on subclasses of alternant/Goppa codes which admit a very…”
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On the complexity of the generalized MinRank problem
Published in Journal of symbolic computation (01-08-2013)“…We study the complexity of solving the generalized MinRank problem, i.e. computing the set of points where the evaluation of a polynomial matrix has rank at…”
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Polynomial-time algorithms for quadratic isomorphism of polynomials: The regular case
Published in Journal of Complexity (01-08-2015)“…Let f=(f1,…,fm) and g=(g1,…,gm) be two sets of m≥1 nonlinear polynomials in K[x1,…,xn] (K being a field). We consider the computational problem of finding–if…”
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On the complexity of computing Gröbner bases for weighted homogeneous systems
Published in Journal of symbolic computation (01-09-2016)“…Solving polynomial systems arising from applications is frequently made easier by the structure of the systems. Weighted homogeneity (or quasi-homogeneity) is…”
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Using Symmetries in the Index Calculus for Elliptic Curves Discrete Logarithm
Published in Journal of cryptology (2014)“…In 2004, an algorithm is introduced to solve the DLP for elliptic curves defined over a non-prime finite field . One of the main steps of this algorithm…”
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17
Algebraic Cryptanalysis of McEliece Variants with Compact Keys
Published in Advances in Cryptology – EUROCRYPT 2010 (2010)“…In this paper we propose a new approach to investigate the security of the McEliece cryptosystem. We recall that this cryptosystem relies on the use of…”
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Book Chapter -
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Gröbner bases of bihomogeneous ideals generated by polynomials of bidegree ( 1 , 1 ) : Algorithms and complexity
Published in Journal of symbolic computation (01-04-2011)“…Solving multihomogeneous systems, as a wide range of structured algebraic systems occurring frequently in practical problems, is of first importance…”
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Polly Cracker, revisited
Published in Designs, codes, and cryptography (01-05-2016)“…We formally treat cryptographic constructions based on the hardness of deciding ideal membership in multivariate polynomial rings. Of particular interest to us…”
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On the relation between the MXL family of algorithms and Gröbner basis algorithms
Published in Journal of symbolic computation (01-08-2012)“…The computation of Gröbner bases remains one of the most powerful methods for tackling the Polynomial System Solving (PoSSo) problem. The most efficient known…”
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