Open AccessMultidimensional Differential‐Linear Cryptanalysis of ARIA Block Cipher
Author(s) -
Yi Wentan,
Ren Jiongjiong,
Chen Shaozhen
Publication year - 2017
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.17.0116.0544
Subject(s) - impossible differential cryptanalysis , block cipher , linear cryptanalysis , higher order differential cryptanalysis , differential cryptanalysis , boomerang attack , differential (mechanical device) , algorithm , advanced encryption standard , cipher , computer science , mathematics , cryptanalysis , theoretical computer science , cryptography , encryption , computer security , physics , thermodynamics
ARIA is a 128‐bit block cipher that has been selected as a Korean encryption standard. Similar to AES, it is robust against differential cryptanalysis and linear cryptanalysis. In this study, we analyze the security of ARIA against differential‐linear cryptanalysis. We present five rounds of differential‐linear distinguishers for ARIA, which can distinguish five rounds of ARIA from random permutations using only 284.8 chosen plaintexts. Moreover, we develop differential‐linear attacks based on six rounds of ARIA‐128 and seven rounds of ARIA‐256. This is the first multidimensional differential‐linear cryptanalysis of ARIA and it has lower data complexity than all previous results. This is a preliminary study and further research may obtain better results in the future.