A New Linear Distinguisher for Four-Round AES

ePrint Report: A New Linear Distinguisher for Four-Round AES

Tomer Ashur, Erik Takke

In SAC’14, Biham and Carmeli presented a novel attack on DES, involving
a variation of Partitioning Cryptanalysis. This was further extended in ToSC’18
by Biham and Perle into the Conditional Linear Cryptanalysis in the context of
Feistel ciphers. In this work, we formalize this cryptanalytic technique for block
ciphers in general and derive several properties. This conditional approximation is
then used to approximate the inv : GF(2^8) …

aes attack block ciphers context cryptanalysis des eprint report general novel report sac work