| SMS4算法S盒布尔函数的Walsh谱分析 |
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| 引用本文： | 刘佳,杜淑琴,谢芳清.SMS4算法S盒布尔函数的Walsh谱分析[J].现代计算机,2008(2):11-13,17. |
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| 作者姓名： | 刘佳 杜淑琴 谢芳清 |
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| 作者单位： | 仲恺农业技术学院,广州510225 |
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| 摘 要： | S盒是现代对称密码中非常重要的组成部分,是大多数分组密码中唯一的非线性结构,在很大程度上决定分组密码的安全性.利用Walsh谱理论,分析中国最新分组密码标准SMS4算法S盒的线性性、非线性性、平衡性、严格雪崩特性和扩散特性等密码性质,从理论上揭示SMS4算法S盒的安全性.
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| 关 键 词： | S盒 布尔函数 Walsh谱 |
| 收稿时间： | 2007-11-21 |
| 修稿时间： | 2008-01-08 |
Walsh Spectral Analysis of the SMS4 S-Boxes Boolean Functions |
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| LIU Jia,DU Shu-qin,XIE Fang-qing.Walsh Spectral Analysis of the SMS4 S-Boxes Boolean Functions[J].Modem Computer,2008(2):11-13,17. |
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| Authors: | LIU Jia DU Shu-qin XIE Fang-qing |
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| Affiliation: | LIU Jia,DU Shu-qin,XIE Fang-qing (Zhongkai University of Agriculture , Technology,Guangzhou 510225) |
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| Abstract: | S-Boxes are quite important components of modem symmetric cryptosystems in the sense that S-Boxes bring nonlinearity to block ciphers and strengthen their cryptographic security.Uese the theory of Walsh spectrum to analyse the SMS4 characteristics such as linearity,nonlinearity,balancenes,strict avalanche criteria and propagation criteria in order to reveal the xecurity of SMS4 S-box theoretically. |
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| Keywords: | SMS4 |
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