Extending Coggia-Couvreur Attack on Loidreau's Rank-metric Cryptosystem
Information Theory
2021-11-29 v1 math.IT
Abstract
A recent paper by Coggia and Couvreur presents a polynomial time key-recovery attack on Loidreau's encryption scheme, based on rank-metric codes, for some parameters. The secret matrix component of Loidreau's scheme is chosen over a defining subspace of the field associated with the rank-metric code. We partially extend the Coggia-Couvreur attack to deal with the case when the defining subspace has dimension greater than 2.
Keywords
Cite
@article{arxiv.2007.07354,
title = {Extending Coggia-Couvreur Attack on Loidreau's Rank-metric Cryptosystem},
author = {Anirban Ghatak},
journal= {arXiv preprint arXiv:2007.07354},
year = {2021}
}
Comments
19 pages