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cs.CR2023
An extension of Overbeck's attack with an application to cryptanalysis of Twisted Gabidulin-based schemes
Alain Couvreur, Ilaria Zappatore
In this article, we discuss the decoding of Gabidulin and related codes from a cryptographic point of view, and we observe that these codes can be decoded solely from the knowledge…
cs.CR2023
Correlated Pseudorandomness from the Hardness of Quasi-Abelian Decoding
Maxime Bombar, Geoffroy Couteau, Alain Couvreur +1
Secure computation often benefits from the use of correlated randomness to achieve fast, non-cryptographic online protocols. A recent paradigm put forth by Boyle …
cs.CR2023
A new approach based on quadratic forms to attack the McEliece cryptosystem
Alain Couvreur, Rocco Mora, Jean-Pierre Tillich
We bring in here a novel algebraic approach for attacking the McEliece cryptosystem. It consists in introducing a subspace of matrices representing quadratic forms. Those are assoc…