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Efficient Electromagnetic Analysis for Cryptographic Module on the Frequency Domain
Author(s) -
HAYASHI YUICHI,
HOMMA NAOFUMI,
MIZUKI TAKAAKI,
AOKI TAKAFUMI,
SONE HIDEAKI
Publication year - 2016
Publication title -
electronics and communications in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.131
H-Index - 13
eISSN - 1942-9541
pISSN - 1942-9533
DOI - 10.1002/ecj.11869
Subject(s) - frequency domain , cryptography , computer science , electromagnetic field , noise (video) , computation , signal processing , time domain , electronic engineering , signal to noise ratio (imaging) , focus (optics) , degradation (telecommunications) , field (mathematics) , signal (programming language) , algorithm , computer hardware , engineering , telecommunications , mathematics , artificial intelligence , physics , digital signal processing , optics , quantum mechanics , pure mathematics , image (mathematics) , computer vision , programming language
SUMMARY An efficient analysis method in the frequency domain for the extraction of information under the degradation of signal‐to‐noise ratio (SNR) is proposed. When the electromagnetic emission from the cryptographic module on the hardware is analyzed, the electromagnetic fields caused by operation on the other modules interfere to the electromagnetic field from the cryptographic module. Therefore, the amount of the measured data required for the extraction of information under the condition of degraded SNR increases and the analysis for this increase in data needs additional computation time. In order to accelerate the analysis under the degradation of SNR, we focus on only the processing of analysis target data. Furthermore, the signal of information and noises is separated with the analysis on the frequency domain. The proposed method is examined through experiments.