岡山大学環境理工学部研究報告 ISSN 2187-6940
Published by Faculty of Environmental Science and Technology, Okayama University

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A Study on the Linear Cryptanalysis of AES Cipher

Sakamura Kenichi 岡山大学
Dong Wang Xiao 岡山大学
石川 洋文 岡山大学
抄録
We have investigated the linear cryptanalysis of AES cipher in this article. As the previous encryption standard DES could be broken by the linear cryptanalysis, NIST decided a new encryption standard AES in 2000. We try to analyze one and two rounds AES cipher by the method of the linear cryptanalysis and learn the limits of this mehtod. AES cipher provides a conspicuous difficulty in breaking its keys because of small bias of its S-box. We report the experimental results of success rate and are led to conclusion that this method would not work well on more than 3 rounds to break keys.
キーワード
AES
Chosen plaintext attack
Linear cryptanalysis
ISSN
1341-9099
NCID
AN10529213