| 对序列密码算法的改进Cube攻击 |
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| 引用本文： | 丁立人,王永娟.对序列密码算法的改进Cube攻击[J].计算机工程与应用,2015,51(21):111-115. |
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| 作者姓名： | 丁立人 王永娟 |
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| 作者单位： | 1.洛阳外国语学院 研究生系，河南 洛阳 471003
2.洛阳外国语学院 语言工程系，河南 洛阳 471003 |
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| 摘 要： | Cube攻击是近来年兴起的攻击手段，针对序列密码算法提出改进的Cube攻击。将代数攻击与Cube相结合，把代数攻击作为Cube攻击的基础，以降低Cube攻击的复杂度。在前人研究的基础上对零化子与Cube攻击的结合方式进行扩展，将改进的攻击应用于Lili-128算法上，仅用三维Cube集合在数据复杂度210]之内即可恢复88比特密钥。
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| 关 键 词： | Cube攻击 代数攻击 零化子 结合 序列密码 |
Improved cube attack on stream ciphers |
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| DING Liren,WANG Yongjuan.Improved cube attack on stream ciphers[J].Computer Engineering and Applications,2015,51(21):111-115. |
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| Authors: | DING Liren WANG Yongjuan |
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| Affiliation: | 1.Department of Post Graduated Students, Luoyang University of Foreign Language, Luoyang, Henan 471003, China
2.Department of Language Engineering, Luoyang University of Foreign Language, Luoyang, Henan 471003, China |
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| Abstract: | Recently, Cube attack has achieved lots of attention. In this paper the improved Cube attack is proposed against the stream ciphers. The improved attack combines Cube attack with algebraic attack with the latter one being the base of the former one, which renders the decrease of the complexity. Based on the former research, the combination forms of annihilators and Cube attack are extended. Meanwhile, the improved attack is applied to Lili-128 algorithm and 88 key bits are recovered within the data complexity of 210] through some 3 dimensional cubes. |
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| Keywords: | Cube attack algebraic attack annihilator combination stream cipher |
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