This paper introduces attacks about Simple Power Analysis (SPA) and Differential Power Analysis (DPA).
本文主要介绍攻击智能卡的简易功率分析(SPA)，微分功率分析(DPA)。
To be more secure, crypto-chips should be protected against simple power analysis attack and differential power analysis attack.
为进一步提高密码芯片的安全性，密码芯片必须防止简单能量分析和差分能量分析的攻击。
In some detail, the paper expounds the principle about simple power analysis (SPA) attacks against the general cryptography and a particular theory against data encryption standard (DES) algorithm.
详细地阐述了对通用密码系统实施简易功耗分析攻击(SPA)的理论基础和对DES算法攻击的特定理论，并提出了对SPA的改进算法。
The calculation results of simple examples also illustrate the scientific rationality and importance of the analysis and calculation of the reactive power cost.
简单算例的计算结果也进一步说明对无功成本进行分析计算的科学合理性和重要性。
Secondly, a simple analysis of electric power harmonics is briefly discussed — electric form.
其次，提出了一种简单的电力系统谐波分析计算的方法——电子表格。
It has great advantages of frequency stability, high frequency resolution, speed of frequency switching, simple analysis of phase noise and spurious, small size and low power.
其具有频率稳定度好、频率分辨率高、频率切换速度快、相位噪声和杂散干扰分析相对简单、体积小、功耗低等优势。
The power analysis attack is simple and has a high successful rate, is becoming one of the most effective side channel attacking methods.
由于功耗分析实现简单，成功率高等优点，成为最具威胁的旁路攻击方法之一。
In voltage stability analysis, the critical points of static voltage stability usually correspond to simple fold points of power flow equations.
在电压稳定分析中，静态电压稳定临界点一般对应潮流方程的简单折叠点。
It is simple and convenient to use the model to simulate power electronic circuits in PSPICE software, the results of simulation is accordant with the analysis of theory.
在PSPICE软件中，应用该模型仿真电力电子电路，简捷、方便，其结果与理论分析一致。
Based on the simple analysis of main engine power generation system of one missile launching vehicle, this paper puts forward a method and measure adding outside power supply.
对某型导弹发射车主机发电的供电体制进行了简要分析，提出了增加外供电体制的措施和方法。
In this paper, combining the characteristics of power distribution network, made possible by a simple sensitivity analysis of reactive power compensation to choose locations.
本文结合配电网的特点，提出了用简单可行的灵敏度分析选择无功补偿的安装地点。
Calculation examples as used in power system show that this method simple and reliable, meeting the actual needs for analysis and calculation.
通过系统中的算例表明，该方法简捷、可靠，能够满足实际分析计算需要。
Calculation examples as used in power system show that this method simple and reliable, meeting the actual needs for analysis and calculation.
通过系统中的算例表明，该方法简捷、可靠，能够满足实际分析计算需要。
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