| Bent函数在流密码中的应用 |
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| 引用本文： | 武传坤 王新梅. Bent函数在流密码中的应用[J]. 通信学报, 1993, 14(4): 23-27 |
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| 作者姓名： | 武传坤 王新梅 |
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| 作者单位： | 西安电子科技大学，西安电子科技大学 西安 710071，西安 710071 |
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| 摘 要： | 本文利用频谱方法研究了Bent函数在流密码中的应用,指出Bent函数具有最高的非线性度,用它作非线性组合器中的组合函数不但可很好地抗相关攻击,而且可最大程度地抗最佳线性逼近攻击。本文还对Bent函数进行了改造以满足平衡性等要求。
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| 关 键 词： | Bent函数 流密码 非线性度 |
Application of Bent Functions to Stream Ciphers |
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| Wu Chuankun and Wang Xinmei. Application of Bent Functions to Stream Ciphers[J]. Journal on Communications, 1993, 14(4): 23-27 |
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| Authors: | Wu Chuankun and Wang Xinmei |
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| Abstract: | This paper studies the application of Bent functions to stream ciphers by using spectral techniques, indicates that Bent functions are of the highest nonlinearity. By using Bent functions as the combining function of nonlinearcombining generator, it can not only resist correlation attack very well, but also resist the best affine approximation attack of the highest degree. This paper also improves Bent functions to have more properties, such as balancement. |
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| Keywords: | Bent function Stream cipher Nonlinearity Attack Walsh spectrum. |
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