Paper 2021/348 Original: eprint.iacr.org/2021/348 ↗
Decoding supercodes of Gabidulin codes and applications to cryptanalysis
Abstract
This article discusses the decoding of Gabidulin codes and shows how to extend the usual decoder to any supercode of a Gabidulin code at the cost of a significant decrease of the decoding radius. Using this decoder, we provide polynomial time attacks on the rank–metric encryption schemes Ramesses and Liga.
Metadata
- Available format(s)
PDF- Category
- Public-key cryptography
- Publication info
- Preprint.
- History
- 2021-06-14: last updated
- 2021-03-17: published
- Short URL
- https://ia.cr/2021/348
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2021/348,
author = {Maxime Bombar and Alain Couvreur},
title = {Decoding supercodes of Gabidulin codes and applications to cryptanalysis},
howpublished = {Cryptology {ePrint} Archive, Paper 2021/348},
year = {2021},
url = {https://eprint.iacr.org/2021/348}
}