1 research outputs found
New Impossible Differential Characteristic of SPECK64 using MILP
Impossible differential attack is one of powerful methods for analyzing block
ciphers. When designing block ciphers, it must be safe for impossible differential
attacks. In case of impossible differential attack, the attack starts from finding the
impossible differential characteristic. However, in the case of the ARX-based block
cipher, these analyzes were difficult due to the addition of modulus. In this paper,
we introduce 157 new six-round impossible differential characteristics of
ARX-basef block cipher, SPECK64, using Mixed Integer Linear Programming
(MILP) base impossible differential characteristic search proposed by Cui [3] etc