DES密码相关性功率分析中最小样本量计算

Calculation of Lower Bounds for the Number of Samples in CPA for DES Ciphers

样本量是可以衡量设备抵御CPA攻击的重要指标,因此建立一种计算样本量的模型是很重要的。选择用统计学的方法通过计算样本量测定硬件的防护效果,这就可以让设计者在设计过程中通过计算了解设备抵御CPA的能力,还可以很容易地比较不同的防护方法,避免了由于产品不能有效抵御CPA攻击而进行的代价高昂的重复设计。

Keywords The number of samples is a important index which weighs the resistance of their devices against CPA attacks, so it is meaningful to establish one model to calculate the number of samples. Chooses a statistical approach to determine the effect of hardware countermeasures on the number of samples needed in CPA attacks. This approach results in a calculation method that enables designers to assess the resistance of their devices against CPA attacks throughout the design process. This way, different combinations of countermeasures can be easily compared and costly design iterations can be avoided.