| 基于相关系数对齐的旁路信号处理方法 |
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| 引用本文： | 张阳,全厚德,李雄伟,陈开颜,郭东昕.基于相关系数对齐的旁路信号处理方法[J].科学技术与工程,2017,17(34). |
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| 作者姓名： | 张阳 全厚德 李雄伟 陈开颜 郭东昕 |
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| 作者单位： | 军械工程学院信息工程系,军械工程学院信息工程系,军械工程学院信息工程系,军械工程学院信息工程系,军械工程学院信息工程系 |
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| 基金项目： | 国家青年科学基金资助项目(61602505); 国家自然科学基金资助项目(61271152) ; 国家自然科学基金资助项目(51377170) |
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| 摘 要： | 针对旁路信号采集时存在信号偏移问题,提出了基于相关系数移位对齐的旁路信号处理方法。分析了旁路信号偏移现象及其成因,包括时钟抖动、触发延迟变化等方面;分析了偏移对相关系数的影响,验证表明,采样范围内的偏移越大则相关系数越小;提出了基于相关系数移位对齐的旁路信号处理算法,按照最大相关系数对应的偏移,依次将各旁路信号轨迹与首条轨迹对齐;构建了实验验证系统,对汉明重量模型与旁路信号轨迹的相关系数进行了分析,验证了本文方法的有效性。
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| 关 键 词： | 旁路分析 信号偏移 相关系数 移位对齐 汉明重量模型 |
| 收稿时间： | 2017/4/26 0:00:00 |
| 修稿时间： | 2017/6/28 0:00:00 |
Side Channel Signal Processing Based on Correlation Alignment |
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| ZHANG Yang,and.Side Channel Signal Processing Based on Correlation Alignment[J].Science Technology and Engineering,2017,17(34). |
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| Authors: | ZHANG Yang and |
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| Institution: | Department of Information Engineering, Ordnance Engineering College,,,, |
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| Abstract: | Aiming at the problem of bias in side channel signal acquisition, a signal processing method based on correlation coefficient shift alignment is proposed. Bias of side channel signal is caused by clock jitter, trigger delay, and other reasons. The influence of the bias on the correlation coefficient is analyzed. Validation indicates that the lager the bias, the smaller the correlation coefficient. Side channel signal processing algorithm based on correlation coefficient shift alignment is proposed. According to the bias of maximum correlation coefficient, following tracks are aligned to the first track in turn. Experiment system is constructed. Correlation coefficient of Hamming weight model with side channel signal track is analyzed. Results show that the proposed method is effective. |
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| Keywords: | side channel analysis signal bias correlation coefficient shift alignment |
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