| Mlgebraic Attack on Filter-Combiner Model Keystream Generators |
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| 引用本文： | WUZhi-ping YEDing-feng MAWei-ju. Mlgebraic Attack on Filter-Combiner Model Keystream Generators[J]. 武汉大学学报:自然科学英文版, 2005, 10(1): 259-262. DOI: 10.1007/BF02828664 |
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| 作者姓名： | WUZhi-ping YEDing-feng MAWei-ju |
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| 作者单位： | StateKeyLaboratoryofInformationSecurity（GraduateSchoolofChineseAcademyofSciences）,Beijing100039,China |
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| 基金项目： | SupportedbytheNationalGrandFundamentalResearch973ProgramofChinaunderGrant(TG1999035803) |
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| 摘 要： | Algebraic attack was applied to attack Filter-Combiner model keystream generators. We proposed thetechnique of function composition to improve the model, and the improved model can resist the algebraic attack. A new criterion for designing Filter-Combiner model was also proposed: the total length L of Linear Finite State Machines used in the model should be large enough and the degree d of Filter-Combiner function should be approximate [L/2].
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| 关 键 词： | 代数攻击 过滤组合模型 流密码 XL算法 解密 信息安全 密码分析 |
| 收稿时间： | 2004-05-30 |
Algebraic attack on Filter-Combiner model keystream generators |
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| Wu Zhi-ping,Ye Ding-feng,Ma Wei-ju. Algebraic attack on Filter-Combiner model keystream generators[J]. Wuhan University Journal of Natural Sciences, 2005, 10(1): 259-262. DOI: 10.1007/BF02828664 |
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| Authors: | Wu Zhi-ping Ye Ding-feng Ma Wei-ju |
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| Affiliation: | Graduate School of Chinese Academy of Sciences |
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| Abstract: | Algebraic attack was applied to attack Filter-Combiner model keystream generators. We proposed the technique of function composition to improve the model, and the improved model can resist the algebraic attack. A new criterion for designing Filter-Combiner model was also proposed: the total length L of Linear Finite State Machines used in the model should be large enough and the degree d of Filter-Combiner function should be approximate L/2. |
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| Keywords: | algebraic attack Filter-Combiner model stream cipher “ XL” algorithm function composition |
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