Author

Adrien Vinçotte

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Preprint Oct 2026

Code distances of matrix rank-metric codes under Add-and-Remove transformations

For a matrix rank-metric code $\mathcal{C}$ and an integer $i$, the $i$-th subcode distance of $\mathcal{C}$ is the largest minimum rank distance of an $i$-dimensional subcode of $\mathcal{C}$. We study how subcode distances change under the Add-and-Remove construction, in which a subcode of codimension $\ell_s$ is kep...

Gianira N. Alfarano, Rakhi Pratihar, Adrien Vinçotte · 0 citations

Preprint Sep 2026

How to break the Miranda signature scheme over matrix Gabidulin codes

The Miranda signature scheme relies on masking a matrix code which disposes of a masked underlying structure, and the knowledge of which allows for efficient error decoding. We consider a Gabidulin code which is expanded into a matrix code, that is only \Fq-linear. An additional masking is then applied to it. The attac...

Adrien Vinçotte · 0 citations