摘要
详细阐述了对通用密码系统实施微分功耗分析攻击(DPA)的理论基础和对DES算法攻击的特定理论,并提出了对DPA的改进算法。在分析功耗信号的噪声特点以后,提出了一个信噪比(SNR)的建模方法和相应理论的证明。最后,给出了算法的一个实验结果。
The fundamental principle of differential power analysis (DPA) attacks against universal cryptosystems and a particular theory of DPA attacks against data encryption standard (DES) algorithm are described in detail. An improved algorithm is proposed for DPA. Based on the analysis of noise characteristics of the power signals, an approach to modeling the signal-to-noise ratio (SNR) is proposed and corresponding theory is demonstrated. Finally, experimental results of the algorithm are presented.
出处
《微电子学》
CAS
CSCD
北大核心
2004年第6期609-613,共5页
Microelectronics
基金
国家863计划资助项目(2001AA141050)
关键词
微分功耗分析
智能卡
DES算法
信噪比
分割函数
Differential power analysis (DPA)
Smart card
DES algorithm
Signal-to-noise ratio
Partition function
