| SNAKE(2)分组密码的积分攻击 |
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| 引用本文： | 官翔,杨晓元,魏悦川,刘龙飞.SNAKE(2)分组密码的积分攻击[J].计算机应用,2014,34(10):2831-2833. |
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| 作者姓名： | 官翔 杨晓元 魏悦川 刘龙飞 |
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| 作者单位： | 武警工程大学 电子技术系，西安 710086 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 针对目前对SNAKE算法的安全性分析主要是插值攻击及不可能差分攻击，评估了SNAKE(2)算法对积分攻击的抵抗能力。利用高阶积分的思想，构造了一个8轮区分器，利用该区分器，对SNAKE(2)算法进行了9轮、10轮积分攻击。攻击结果表明，SNAKE(2)算法对10轮积分攻击是不免疫的。
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| 关 键 词： | 分组密码 SNAKE(2) 积分攻击 攻击复杂度 |
| 收稿时间： | 2014-04-15 |
| 修稿时间： | 2014-06-20 |
Integral attack on SNAKE(2) block cipher |
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| GUAN Xiang,YANG Xiaoyuan,WEI Yuechuan,LIU Longfei.Integral attack on SNAKE(2) block cipher[J].journal of Computer Applications,2014,34(10):2831-2833. |
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| Authors: | GUAN Xiang YANG Xiaoyuan WEI Yuechuan LIU Longfei |
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| Affiliation: | Department of Electronic Technology, Engineering University of Armed Police Force, Xian Shaanxi 710086, China |
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| Abstract: | At present, the safety analysis of SNAKE algorithm is mainly about interpolation attack and impossible differential attack. The paper evaluated the security of SNAKE(2) block cipher against integral attack. Based on the idea of higher-order integral attack, an 8-round distinguisher was designed. Using the distinguisher, integral attacks were made on 9/10 round SNAKE(2) block cipher. The attack results show that the 10-round SNAKE(2) block cipher is not immune to integral attack. |
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| Keywords: | block cipher SNAKE(2) integral attack attack complexity |
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