Technology of Information Security
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1171-1174

Integral cryptanalysis on ANU based on MILP

Yuan Zheng1
Zhu Liang1,2
Zhao Chenxi1,2
Liu Zongfu1,2
1. Beijing Electronics Science & Technology Institute, Beijing 100071, China
2. School of Telecommunications Engineering, Xidian University, Xi'an 710071, China

Abstract

ANU cipher, published on SCN 2016 by Bansod et al, is an ultra lightweight Feistel block cipher. There was no integral attack proposed against it yet. In order to study the resistance against integral analysis of ANU cipher, this paper established a MILP model based on bit-based division according to the structure of ANU cipher. By solving the model, it got the 9-round integral distinguisher of ANU for the first time. Based on the 9-round integral distinguisher and the correlation between round keys, it attacked 12-round ANU with 128 bit key size and could recover 43 bit round key. The data complexity of this attack is 263.58 chosen plaintext, the time complexity is 288.42 of 12-round encryption, and the storage complexity is 233.

Foundation Support

国家“十三五”密码发展基金资助项目(MMJJ20180217)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2020.05.0136
Publish at: Application Research of Computers Printed Article, Vol. 38, 2021 No. 4
Section: Technology of Information Security
Pages: 1171-1174
Serial Number: 1001-3695(2021)04-039-1171-04

Publish History

[2021-04-05] Printed Article

Cite This Article

袁征, 朱亮, 赵晨曦, 等. 基于MILP搜索的ANU算法积分分析 [J]. 计算机应用研究, 2021, 38 (4): 1171-1174. (Yuan Zheng, Zhu Liang, Zhao Chenxi, et al. Integral cryptanalysis on ANU based on MILP [J]. Application Research of Computers, 2021, 38 (4): 1171-1174. )

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  • Application Research of Computers Monthly Journal
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Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

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