计算机工程

• 安全技术 • 上一篇    下一篇

ZORRO迭代差分特征密钥恢复的代数分析

李梦竹,张文英,陈万朴   

  1. (山东师范大学 信息科学与工程学院,济南 250014)
  • 收稿日期:2016-01-18 出版日期:2017-02-15 发布日期:2017-02-15
  • 作者简介:李梦竹(1990—),女,硕士研究生,主研方向为密码学;张文英(通信作者),教授;陈万朴,硕士。
  • 基金项目:
    国家自然科学基金(61272434)。

Algebraic Analysis of Key Recovery on ZORRO Iterative Differential Characteristics

LI Mengzhu,ZHANG Wenying,CHEN Wanpu   

  1. (College of Information Science and Engineering,Shandong Normal University,Jinan 250014,China)
  • Received:2016-01-18 Online:2017-02-15 Published:2017-02-15

摘要: 基于ZORRO加密算法轮变换的可迭代特性,对ZORRO加密算法进行代数分析。在4轮差分特征的基础上迭代5次形成20轮的差分特征,并对ZORRO算法实现迭代差分分析,采用简单方程组并将搜集到的数据带入方程组,从而对方程组求解。实验结果表明,该代数分析法的直观性较好,能够有效恢复密钥。

关键词: 无线传感器网络, 分组密码, 迭代差分特征, 密钥恢复, 代数分析方法

Abstract: This paper analyzes ZORRO with algebraic method in detail according to its iterative characteristic of the round function.The encryption iterates 5 times based on 4-round differential characteristics to form 20-round differential characteristics,and then it uses the algebraic analysis method to analyze the iterative differential characteristics of ZORRO,substitutes the collected data into simple equations,finally tries to solve the equations.Experimental results show that the algebraic method is more intuitive and can recover the key efficiently.

Key words: Wireless Sensor Network(WSN), block cipher, iterative differential characteristics, key recovery, algebraic analysis method

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