Higher order differential attacks on iterated block ciphers using almost bent round functions

Anne Canteaut (1) , Marion Videau (1)

1 CODES - Coding and cryptography

We show that the use of a round function whose Walsh coefficients are divisible by a high power of 2 may lead to a higher order differential attack.

Domaines: Cryptographie et sécurité [cs.CR]

Anne Canteaut, Marion Videau. Higher order differential attacks on iterated block ciphers using almost bent round functions. ISIT 2002 : IEEE International Symposium on Information Theory, Jun 2002, Lausanne, Switzerland. pp.209, ⟨10.1109/ISIT.2002.1023481⟩. ⟨hal-00675354⟩