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Title:
extending higher-order integral: an efficient unified algorithm of constructing integral distinguishers for block ciphers
Author: Zhang Wentao ; Su Bozhan ; Wu Wenling ; Feng Dengguo ; Wu Chuankun
Source: Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Conference Name: 10th International Conference on Applied Cryptography and Network Security, ACNS 2012
Conference Date: June 26, 2012 - June 29, 2012
Issued Date: 2012
Conference Place: Singapore, Singapore
Keyword: Algorithms ; Lyapunov methods ; Network security
Indexed Type: EI
ISSN: 0302-9743
ISBN: 9783642312830
Department: (1) State Key Laboratory of Information Security Institute of Information Engineering Chinese Academy of Sciences Beijing China; (2) Institute of Software Chinese Academy of Sciences Beijing China
Sponsorship: AdNovum
Abstract: In this paper, we give an extension of the concept of higher-order integral, which can make us design better higher-order integral distinguishers for some block ciphers (structures). Using the new extension, we present a unified algorithm of searching for the best possible higher-order integral distinguishers for block ciphers. We adopt the inside-out approach, trying to predict the behavior of a set of carefully chosen data, not only along encryption direction, but also along decryption direction. Applying the unified algorithm, we search for the best possible higher-order integral distinguishers of Gen-SMS4 structure, Gen-Fourcell structure and Present. For Gen-SMS4 structure and Present, the best higher-order integral distinguishers given by our algorithm are better than the best results known so far. For Gen-Fourcell structure, the best higher-order integral distinguishers given by our algorithm are the same as the best results known so far. We expect that the inside-out method is helpful to understand higher-order integral of block ciphers better, and the unified algorithm presented in this paper can be used as a tool for efficiently evaluating the security of a block cipher against integral cryptanalysis. © 2012 Springer-Verlag.
English Abstract: In this paper, we give an extension of the concept of higher-order integral, which can make us design better higher-order integral distinguishers for some block ciphers (structures). Using the new extension, we present a unified algorithm of searching for the best possible higher-order integral distinguishers for block ciphers. We adopt the inside-out approach, trying to predict the behavior of a set of carefully chosen data, not only along encryption direction, but also along decryption direction. Applying the unified algorithm, we search for the best possible higher-order integral distinguishers of Gen-SMS4 structure, Gen-Fourcell structure and Present. For Gen-SMS4 structure and Present, the best higher-order integral distinguishers given by our algorithm are better than the best results known so far. For Gen-Fourcell structure, the best higher-order integral distinguishers given by our algorithm are the same as the best results known so far. We expect that the inside-out method is helpful to understand higher-order integral of block ciphers better, and the unified algorithm presented in this paper can be used as a tool for efficiently evaluating the security of a block cipher against integral cryptanalysis. © 2012 Springer-Verlag.
Language: 英语
Content Type: 会议论文
URI: http://ir.iscas.ac.cn/handle/311060/15780
Appears in Collections:软件所图书馆_会议论文

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Recommended Citation:
Zhang Wentao,Su Bozhan,Wu Wenling,et al. extending higher-order integral: an efficient unified algorithm of constructing integral distinguishers for block ciphers[C]. 见:10th International Conference on Applied Cryptography and Network Security, ACNS 2012. Singapore, Singapore. June 26, 2012 - June 29, 2012.
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