审批绿色通道:Hamming weight of the data 什么意思？谢谢！

来源：百度文库编辑：查人人中国名人网时间：2024/04/29 13:46:25

SPA techniques perform a simple inspection of the power consumption traces and rely on the identification of the Hamming weight of the data during encryption/decryption.

是关于应用编码/源码，

Hamming weight of the data（数据码字的汉明重量）

一个码字的汉明重量(Hamming Weight),被定义成中非零元素的个数,记为 wt(mc).如,若mc=(110101),则wt(mc)=4.而和两个码字间的汉明距离(Hamming
distance),定义为码字元素彼此相异的位置个数,记为d(mc,nc).

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