## ECO Team

### Exact Computing

The research activities of the ECO group covers a large spectrum at the interface of computer algebra, coding theory and cryptography, with motivations ranging from the theoretical foundations to the practical applications of these domains. The originality of our approach is to combine various aspects of computer science and mathematics. In particular, we are interested in:

- Algebra to understand and to describe the underlying structure of the objects
- Combinatorics to analyse their properties
- Arithmetic to efficiently solve computational problems
- Softwares to turn our theoretical results into effective solutions
- Complexity theory, to assess the efficiency of the algorithms and the security of cryptosystems

More precisely, our current works include the following problems:

**Computer Algebra:**efficient algorithms in linear algebra, sparse or in-place polynomial arithmetic, finite field arithmetic, verified computing**Cryptography:**public-key cryptography, elliptic curves, side-channel attacks and countermeasures, design and proofs of protocols, advanced cryptography, multi-party computation, post-quantum crypto**Error Correcting Codes:**algebraic decoding algorithms, bounds on parameters, fault tolerant linear algebra

**Staff**

Pascal Giorgi, Professeur des universités, UM

Laurent Imbert, Directeur de recherche, CNRS

Fabien Laguillaumie, Professeur des universités, UM

Romain Lebreton, Maître de conférences, UM

Andrei Romashchenko, Chargé de recherche, CNRS

Eleonora Guerrini, Maître de conférences, UM

Nicolas Serrurier Gourvès, Adjoint technique, UM

**Associates & Students **

Camille Mutschler, NINJALAB

Matteo Abbondati, UM

**Regular Co-workers **

Ferran Alborch Escobar, Doctorant externe, Orange

Armelle Perret Du Cray, CDD Enseignant-Chercheur, UM

Agathe Beaugrand, Doctorant externe, UBordeaux