A New Result of Impossible Differential Attacks on 7-Round AES-192

被引：0

作者：

Liu Jingmei ^{[1
]}

Zhao Linsen ^{[2
]}

Wang Xinmei ^{[1
]}

机构：

[1] Xidian Univ, Natl Key Lab Integrated Serv Networks, Xian 710071, Peoples R China

[2] Xian Inst Post & Telecommun, Telecom Dept, Xian 710061, Peoples R China

来源：

CHINA COMMUNICATIONS | 2009年 / 6卷 / 3A期

基金：

国家高技术研究发展计划(863计划); 中国国家自然科学基金;

关键词：

AES; Rijndael; impossible differential; CRYPTANALYSIS;

D O I：

暂无

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

This paper concentrates on the impossible-differential attacks on reduced-round versions of the Rijndael cipher following the framework of the attacks by Biham-Keller and Cheon et al. One method is presented for impossible differential cryptanalysis of 7-round AES-192 combined with classing subsets and exploiting weaknesses in their key schedule. This attack requires about 278chosen plaintexts, demands 2129 words of memory, and performs 2155 7-round AES-192 encryptions, which update the best known impossible differential attacks on reduced AES. Compared with the available results, this cryptanalysis costs fewer chosen-plaintexts and lower computing complexity.

引用

页码：111 / 115

页数：5

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