| Midori64的相关密钥不可能差分分析* |
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| 引用本文： | 任瑶瑶,张文英.Midori64的相关密钥不可能差分分析*[J].计算机应用研究,2018,35(6). |
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| 作者姓名： | 任瑶瑶 张文英 |
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| 作者单位： | 山东师范大学,山东师范大学 |
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| 基金项目： | 国家自然科学(61272434)；国家自然科学(61672330)；国家自然科学(61602287); 山东省自然科学(ZR2013FQ021); |
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| 摘 要： | Midori算法是由Banik等人在AISACRYPT2015上提出的一种具有SPN结构的轻量级的加密算法。Midori的分组长度有64bit和128bit两种，分别为Midori64和Midori128，本文主要研究的Midori64。目前攻击者已经使用了不可能差分分析、中间相遇攻击、相关密钥差分分析等方法对Midori进行了分析，却没有使用相关密钥不可能差分分析进行分析。为了验证Midori算法的安全性，本文使用了相关密钥不可能差分分析了Midori算法，构造了一个Midori算法的9轮区分器，进行了Midori算法的14轮攻击，总共猜测了84bit密钥。
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| 关 键 词： | Midori算法 相关密钥攻击 不可能差分分析 9轮区分器 14轮攻击 |
| 收稿时间： | 2017/3/21 0:00:00 |
| 修稿时间： | 2017/4/15 0:00:00 |
Related-key differential analysis of Midori64* |
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| Ren Yaoyao and Zhang Wenying.Related-key differential analysis of Midori64*[J].Application Research of Computers,2018,35(6). |
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| Authors: | Ren Yaoyao and Zhang Wenying |
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| Affiliation: | Shandong Normal University, |
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| Abstract: | The Midori algorithm is a lightweight encryption algorithm with a SPN structure proposed by Banik et al. On AISACRYPT 2015. There are two versions of Midori with state sizes of 64-bit and 128-bit respectively, this article mainly study the Midori64. At present, the attacker has used the impossible differential ,Meet-in-the-middle attack and related-key difference analyzed the Midori, but it has not analyzed it by using the related-key impossible differential analysis. In order to verify the security of the Midori algorithm, we use the related-key impossible differential to analyze the Midori algorithm and construct a 9-round distinguisher ,then we mount 14-round related-key impossible differential attack on Midori64, a total of guess the 84bit key. |
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| Keywords: | Midori64 algorithm Related-key attack Impossible differential attack 9-round distinguisher 14-round attack |
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