本文關(guān)鍵詞：基于滑動平均的能量分析攻擊研究與實現(xiàn)　出處：《電子與信息學報》2017年05期 　論文類型：期刊論文

  更多相關(guān)文章： 能量分析攻擊 預(yù)處理 滑動平均 低通濾波

【摘要】：在能量分析攻擊中,為了提高攻擊效率,減少噪聲的影響,越來越多的預(yù)處理方法被使用,取得了很多顯著的效果。該文以在ATmega16上運行的AES-128算法作為攻擊目標,對采集的原始能量曲線進行滑動平均濾波,再通過相關(guān)能量分析(Correlation Power Analysis,CPA)攻擊確定滑動平均濾波的最優(yōu)參數(shù)。通過與原始數(shù)據(jù)和經(jīng)過Hanning窗低通濾波器濾波后的數(shù)據(jù)對比,可以看出經(jīng)過滑動平均濾波處理后,使用正確密鑰所得的CPA相關(guān)系數(shù)較原始數(shù)據(jù)或低通濾波處理后所得系數(shù)大,而錯誤密鑰所得相關(guān)系數(shù)小。經(jīng)過滑動平均處理后,不僅可以發(fā)現(xiàn)AES-128的10輪加密過程,而且經(jīng)過差分能量分析攻擊所得的尖峰較原始的更為明顯。實驗結(jié)果表明經(jīng)過滑動平均濾波預(yù)處理后,能量分析攻擊的效率可明顯提高。
[Abstract]:In energy analysis attacks, in order to improve the efficiency of the attack and reduce the impact of noise, more and more preprocessing methods are used. A lot of remarkable results have been achieved. In this paper, the AES-128 algorithm running on ATmega16 is taken as the target of attack, and the original energy curve is filtered by moving average. Correlation Power Analysis was analyzed by correlation energy. By comparing with the original data and the data filtered by the Hanning window low-pass filter, we can see that after the moving average filter processing. The CPA correlation coefficient obtained by using the correct key is larger than that obtained by the original data or the low-pass filter, but the correlation coefficient obtained by the error key is smaller, and the correlation coefficient obtained by the error key is smaller than that obtained by the original data or the low-pass filter. Not only the 10 rounds of AES-128 encryption process can be found, but also the peak obtained by differential energy analysis attack is more obvious than the original one. The experimental results show that after the moving average filter pretreatment. The efficiency of energy analysis attack can be improved obviously.
【作者單位】： 北京電子科技學院電子與信息工程系;
【基金】：北京市自然科學基金(4163076) 北京電子科技學院基金(328201505,328201508)~~
【分類號】：TN918.1;TN713
【正文快照】： 密碼算法的安全性主要包括兩方面內(nèi)容:一方面是數(shù)學上的安全性,另一方面是其物理實現(xiàn)的安全性。目前主要的密碼算法在數(shù)學上幾乎無法完全被攻破,但密碼算法在物理設(shè)備上實現(xiàn),有很多方式可以獲取密鑰信息。1996年,Kocher[1]提出時間攻擊,第1次通過側(cè)信道攻擊恢復(fù)出密碼設(shè)備的密

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