Open AccessRelated‐Key Impossible Differential Cryptanalysis of LBlock
Author(s) -
Xie Minm,
Li Jingjing,
Zang Yuechuan
Publication year - 2017
Publication title -
chinese journal of electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.267
H-Index - 25
eISSN - 2075-5597
pISSN - 1022-4653
DOI - 10.1049/cje.2016.06.031
Subject(s) - key (lock) , linear cryptanalysis , cryptanalysis , differential cryptanalysis , computer science , impossible differential cryptanalysis , boomerang attack , differential (mechanical device) , higher order differential cryptanalysis , computer security , cryptography , physics , thermodynamics
A related‐key impossible differential attack on 24‐round LBlock is constructed by using new 16‐round related‐key impossible differentials and adding 4 rounds at the top and 4 rounds at the bottom of these 16‐round related‐key impossible differential paths. The data and time complexities are about 2 63 chosen plaintexts and 2 75.42 24‐round encryptions respectively.