Zero-correlation linear attack on reduced-round SKINNY  

作　　者：Yi ZHANG Ting CUI Congjun WANG 

机构地区：[1]Department of Applied Mathematics,PLA SSF Information Engineering University,Zhengzhou 450000,China

出　　处：《Frontiers of Computer Science》2023年第4期193-205,共13页中国计算机科学前沿（英文版）

基　　金：sponsored by the Natural Science Foundation of Henan(No.222300420100);the Foundation of Key Laboratory of National Defense Science and Technology,China(61421030107).

摘　　要：At ToSC 2019,Ankele et al.proposed a novel idea for constructing zero-correlation linear distinguishers in a related-tweakey model.This paper further clarifies this principle and gives a search model for zero-correlation distin-guishers.As a result,for the first time,the authors construct 14-round and 16-round zero-correlation linear distinguishers for SKINNY-n-2n and SKINNY-n-3n,respectively,which are both two rounds longer than Anekele et al.'s.Based on these distinguishers,the paper presents related-tweakey zero-correlation linear attacks on 21-round SKINNY-n-2n and 25-round SKINNY-n-3n,respectively.

关 键 词：tweakable block cipher ZERO-CORRELATION related-tweakey SKINNY 

分 类 号：R11[医药卫生—公共卫生与预防医学]