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一種基于完全性的不可能差分區(qū)分器構(gòu)造方法

李俊志,  關(guān)杰

李俊志, 關(guān)杰. 一種基于完全性的不可能差分區(qū)分器構(gòu)造方法[J]. 電子與信息學報, 2018, 40(2): 430-437. doi: 10.11999/JEIT170422
引用本文: 李俊志, 關(guān)杰. 一種基于完全性的不可能差分區(qū)分器構(gòu)造方法[J]. 電子與信息學報, 2018, 40(2): 430-437. doi: 10.11999/JEIT170422
LI Junzhi, GUAN Jie . A Method of Constructing Impossible Differential Distinguishers Based on Completeness[J]. Journal of Electronics & Information Technology, 2018, 40(2): 430-437. doi: 10.11999/JEIT170422
Citation: LI Junzhi, GUAN Jie . A Method of Constructing Impossible Differential Distinguishers Based on Completeness[J]. Journal of Electronics & Information Technology, 2018, 40(2): 430-437. doi: 10.11999/JEIT170422

一種基于完全性的不可能差分區(qū)分器構(gòu)造方法

doi: 10.11999/JEIT170422
基金項目: 

國家自然科學基金(61572516, 61272041, 61272488)

A Method of Constructing Impossible Differential Distinguishers Based on Completeness

Funds: 

The National Natural Science Foundation of China (61572516, 61272041, 61272488)

  • 摘要: 基于混合運算的密碼算法(MOC)以安全性高、軟硬件實現(xiàn)效率高等特點受到人們的廣泛關(guān)注。完全性指輸出的每一比特都包含有輸入每一比特的信息，達到完全性是密碼算法設(shè)計的一個基本原則。該文提出針對MOC算法完全性分析的通用算法，并在此基礎(chǔ)上提出利用完全性尋找MOC算法的不可能差分區(qū)分器的方法，此構(gòu)造方法可直接給出MOC算法高重量的不可能差分區(qū)分器且搜索效率高，為MOC算法不可能差分區(qū)分器的實際構(gòu)造提供了理論指導(dǎo)和技術(shù)支持。應(yīng)用此方法找到了SIMON系列算法全部現(xiàn)有的最長不可能差分區(qū)分器，并找到了SPECK系列算法更多的不可能差分區(qū)分器。
    Abstract: Mixed Operation based Ciphers (MOC) attract cryptographers owing to their high security and high efficiency on both software and hardware platforms. As a basic principle of cryptosystem design, completeness refers to that every output bit contains the information of every input bit. This paper presents a universal algorithm of completeness analysis against MOC. Based on the algorithm, a method of constructing impossible differential distinguishers utilizing completeness is proposed. This method constructs heavy weight impossible differential distinguishers directly with high efficiency. The method can provide theory and technology direction for the construction of impossible differential distinguishers. Then, this paper analysis SIMON and SPECK with this method and introduces all the longest impossible differential distinguishers of SIMON currently public and new impossible differential distinguishers of SPECK.
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  • 文章訪問數(shù):  1360
  • HTML全文瀏覽量:  218
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  • 被引次數(shù): 0
出版歷程
  • 收稿日期:  2017-05-08
  • 修回日期:  2017-09-26
  • 刊出日期:  2018-02-19

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