计算机工程与应用 ›› 2007, Vol. 43 ›› Issue (32): 146-148.

• 网络、通信与安全 • 上一篇    下一篇

DES加密算法差分能量分析的研究

钱思进1,张凯泽2,王衍波2,何德全1   

  1. 1.西北工业大学 自动化与信息工程学院,西安 710072
    2.解放军理工大学 通信工程学院电子信息工程系,南京 210007
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-11-11 发布日期:2007-11-11
  • 通讯作者: 钱思进

Research on differential power analysis of the DES algorithm

QIAN Si-jin1,ZHANG Kai-ze2,WANG Yan-bo2,HE De-quan1   

  1. 1.Northwestern Polytechnic University,Xi’an 710072,China
    2.Department of Electronic Information Engineering ICE,PLAUST,Nanjing 210007,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-11-11 Published:2007-11-11
  • Contact: QIAN Si-jin

摘要: 分析差分能量分析原理的基础上,设计了针对DES加密算法的差分能量分析系统并得出了分析的正确率。通过对实验数据的深入观察和分析,发现了可能严重影响DES的DPA分析正确率因素——DES的第四个S盒冲突现象,值得进一步深入研究。

关键词: 差分能量分析, 观察位, 子密钥块, 冲突

Abstract: Based on the thorough analysis of the Differential Power Analysis theory,a DES-oriented DPA system is designed in this paper and the DPA analysis correct rate is achieved.Through detail observation and analysis of the experimental data,we’ve found one factor which may seriously affect the DES’ DPA analysis correct rate,that is the 4th S-Box collision phenomenon which is deserved to be researched deeply in the future.

Key words: Differential Power Analysis(DPA), observation bit, subkey block, collision