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Title:
Decoding supercodes of Gabidulin codes and applications to cryptanalysis
Authors: Maxime Bombar, Alain Couvreur
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.
ePrint: https://eprint.iacr.org/2021/348
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