Computer Engineering and Applications ›› 2011, Vol. 47 ›› Issue (19): 75-77.

• 网络、通信、安全 • Previous Articles     Next Articles

Judgemental method of differential fault position in DFA attack against DES

WANG Xinmin,ZHANG Tao   

  1. College of Economic Administration,China University of Petroleum,Dongying,Shandong 257061,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-07-01 Published:2011-07-01

DES算法DFA攻击的差分差错位置判别方法

王信敏,张 涛   

  1. 中国石油大学(华东) 经济管理学院,山东 东营 257061

Abstract: With 1-bit differential fault model of DFA attack against DES algorithm,the relationship between 1-bit differential fault position and ciphertexts’difference is analyzed,and the results are proved to be correct by experiments at the same time.According to these results,the position of 1-bit differential fault can be judged by the character of ciphertexts’ difference,DFA attack can be implemented successfully.

Key words: DES algorithm, Differential Fault Attack(DFA), 1-bit differential fault model

摘要: 利用DFA攻击方法的1比特差分差错模型,分析了DES算法的1比特差分差错所处的位置与密文差分之间的关系,并对分析结果进行了实验测试。利用分析结果,可以根据密文差分的特点有效地判断1比特差错所处的位置,进而顺利地进行DFA攻击。

关键词: 数据加密标准, 差分差错攻击, 1比特差分差错模型