Impossible Differential Cryptanalysis for Block Cipher Structures

机译：块密码结构的不可能差分密码分析

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Impossible Differential Cryptanalysis(IDC) uses impossible differential characteristics to retrieve a subkey material for the first or the last several rounds of block ciphers. Thus, the security of a block cipher against IDC can be evaluated by impossible differential characteristics. In this paper, we study impossible differential characteristics of block cipher structures whose round functions are bijective. We introduce a widely applicable method to find various impossible differential characteristics of block cipher structures. Using this method, we find various impossible differential characteristics of known block cipher structures: Nyberg's generalized Feistel network, a generalized CAST256-like structure, a generalized MARS-like structure, a generalized RC6-like structure, and Rijndael structure.

机译：不可能的差分密码分析（IDC）使用不可能的差分特征来检索前几轮或最后几轮分组密码的子密钥材料。因此，可以通过不可能的差分特性来评估针对IDC的分组密码的安全性。在本文中，我们研究了圆形函数为双射的分组密码结构不可能的微分特性。我们介绍了一种广泛适用的方法来查找分组密码结构的各种不可能的微分特性。使用这种方法，我们发现了已知的分组密码结构的各种不可能的微分特征：尼伯格的广义Feistel网络，广义的CAST256类结构，广义的MARS类结构，广义的RC6类结构和Rijndael结构。

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来源
《4th International Conference on Cryptology in India; Dec 8-10, 2003; New Delhi, India》|2003年|p.82-96|共15页
会议地点 New Delhi(IN);New Delhi(IN)
作者
Jongsung Kim; Seokhie Hong; Jaechul Sung; Sangjin Lee; Jongin Lim; Soohak Sung;
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作者单位

Center for Information Security Technologies(CIST), Korea University, Seoul, Korea;

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会议组织
原文格式 PDF
正文语种 eng
中图分类无线电电子学、电信技术;
关键词
impossible differential cryptanalysis(IDC); impossible differential characteristic; block cipher structures;

机译：不可能的差分密码分析（IDC）;不可能的差分特性;分组密码结构;

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1. Provable Security Of Block Ciphers Against Linear Cryptanalysis: A Mission Impossible?an Experimental Review Of The Practical Security Approach And The Key Equivalence Hypothesis In Linear Cryptanalysis [J] . Gilles Piret, Francois-Xavier Standaert Designs, Codes and Crytography . 2009,第3期

机译：针对线性密码分析的分组密码可证明的安全性：不可能完成的任务—线性密码分析中实用安全性方法和关键等效假设的实验评论
2. Provable security of block ciphers against linear cryptanalysis: a mission impossible? An experimental review of the practical security approach and the key equivalence hypothesis in linear cryptanalysis [J] . Gilles Piret, François-Xavier Standaert Designs, Codes and Cryptography . 2009,第3期

机译：针对线性密码分析的分组密码可证明的安全性：不可能完成的任务吗？线性密码分析中的实用安全性方法和密钥等效假设的实验综述
3. Seven New Block Cipher Structures with Provable Security against Differential Cryptanalysis [J] . Jongsung KIM, Changhoon LEE, Jaechul SUNG, IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences . 2008,第10期

机译：七个新的分组密码结构，针对差分密码分析具有可证明的安全性
4. Impossible Differential Cryptanalysis for Block Cipher Structures [C] . Jongsung Kim, Seokhie Hong, Jaechul Sung, International Conference on Cryptology in India . 2003

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Impossible Differential Cryptanalysis for Block Cipher Structures

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