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.
翻译:文章讨论了加比杜林编码的解码,并展示了如何将通常的解码器扩大到加比杜林编码的任何超级编码,以大大降低解码半径为代价。我们使用这个解码器,提供了对RAMESSES和LIGA等分级加密办法的多元时间攻击。