| MIBS算法的积分攻击 |
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| 引用本文： | 潘志舒,郭建胜,曹进克,罗 伟.MIBS算法的积分攻击[J].通信学报,2014,35(7):19-163. |
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| 作者姓名： | 潘志舒 郭建胜 曹进克 罗 伟 |
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| 作者单位： | 1. 西安卫星测控中心，陕西 西安 710043; 2. 信息保障技术重点实验室， 北京 100000；
3. 解放军信息工程大学，河南 郑州 450001; 4. 解放军78179部队，四川 都江堰 611830 |
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| 基金项目： | 河南省科技创新杰出青年计划基金资助项目（104100510025） |
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| 摘 要： | 对分组密码算法MIBS在积分攻击下的安全性进行了研究，构造了MIBS算法的5轮积分区分器，利用Feistel结构的等价结构以及MIBS密钥扩展算法中主密钥和轮密钥的关系，对10轮MIBS算法实施了积分攻击，给出了攻击算法。攻击10轮MIBS-64的数据复杂度和时间复杂度分别为 和 ，攻击10轮MIBS-80的数据复杂度和时间复杂度分别为 和 。分析结果表明，10轮MIBS算法对积分攻击是不免疫的，该积分攻击的轮数和数据复杂度上都要优于已有的积分攻击。
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| 关 键 词： | 分组密码 密码分析 积分攻击 MIBS算法 |
Integral attack on MIBS block cipher |
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| Zhi-shu PAN,Jian-sheng GUO,Jin-ke CAO,Wei LUO.Integral attack on MIBS block cipher[J].Journal on Communications,2014,35(7):19-163. |
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| Authors: | Zhi-shu PAN Jian-sheng GUO Jin-ke CAO Wei LUO |
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| Affiliation: | 1. Xi'an Satellite Control Center, Xi'an 710043, China;2. Science and Technology on Information Assurance Laboratory,Beijing 100000, China;3. PLA Information Engineering University, Zhengzhou 450001, China;4. Unit 78179 of PLA, Dujiangyan 611830, China |
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| Abstract: | The security of the block cipher MIBS against integral attack is analyzed and a 5-round distinguisher of MIBS is founded. Considering the equivalent structure of Feistel structure and the relation of master key and round key in the key expansion algorithm of MIBS, we applied integral attack to 10 rounds of MIBS and gave the attack algorithm. The data and time complexities of 10 round attack on MIBS-64 are and respectively. The data and time complexities of 10 round attack on MIBS-80 are and respectively. These results demonstrate that integral attack on 10-round MIBS is no immunity, both rounds and data complexity of this integral attack are better than the integral attack existing. |
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| Keywords: | block cipher cryptanalysis integral attack MIBS |
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