• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

计算机工程与科学 ›› 2020, Vol. 42 ›› Issue (09): 1538-1543.

• 高性能计算 • 上一篇    下一篇

一种面向SoC的能量迹预处理方法

蔡晓敏1,李仁发1,李少青2,沈高2,邝世杰1   

  1. (1.湖南大学信息科学与工程学院,湖南 长沙 410082;2.国防科技大学计算机学院,湖南 长沙 410073)

  • 收稿日期:2020-04-08 修回日期:2020-06-04 接受日期:2020-09-25 出版日期:2020-09-25 发布日期:2020-09-24

An energy trace preprocessing method for SoC

CAI Xiao-min1,LI Ren-fa1,LI Shao-qing2,SHEN Gao2,KUANG Shi-jie1   

  1. (1.College of Computer Science and Electronic Engineering,Hunan University,Changsha 410082;

    2.Shool of Computer,National University of Defense Technology,Changsha 410073,China)
  • Received:2020-04-08 Revised:2020-06-04 Accepted:2020-09-25 Online:2020-09-25 Published:2020-09-24

摘要: 差分功耗攻击技术是恢复密码设备密钥最有效的攻击手段之一,但在攻击过程中,如果使用不合适的采样点,将引入额外噪声,会降低攻击成功率。为此,提出了一种基于能量模型的能量迹分类方法,旨在定位能量迹中与密钥具有较强相关性的特征点。分别利用汉明距离和汉明重量2种能量模型定位特征点,截取特征点附近少量采样点构成特征区间。攻击不同密钥下载有128位AES算法的SoC芯片,实测结果表明:利用汉明距离能量模型得到的最佳特征区间的长度较短。最终,基于汉明距离能量模型得到的特征点定位方法具有较低的样本计算量,且缩减了大量的样本量。


关键词: 差分功耗攻击, 片上系统SoC, 能量模型, 特征点, 特征区间, 能量迹

Abstract: Differential power attack is one of the most effective methods to reveal the key of cryptographic devices. Therefore, an energy trace classification method based on energy model is proposed to locate the significant points that have strong correlation with the key. Two energy models (hamming distance and hamming weight) are used, and a few sampling points near the significant point are intercepted to form the significant interval. The SoC chip with 128-bit AES algorithm under different keys is attacked. The actual test results show that the length of the optimal characteristic interval obtained by hamming distance energy model is short. Finally, the characteristic point location method based on hamming distance energy model has low sample calculation and reduces a large amount of samples.



Key words: differential power attack;system on chip;energy model, significant point;characteristic interval;energy trace