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Analysis of Electromagnetic Information Leakage Based on Cryptographic Integrated Circuits
Cryptographic algorithm is the most commonly used method of information security protection for many devices. The secret key of cryptographic algorithm is usually stored in these devices’ registers. In this paper, we propose an electromagnetic information leakage model to investigate the relationshi...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8625981/ https://www.ncbi.nlm.nih.gov/pubmed/34828206 http://dx.doi.org/10.3390/e23111508 |
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author | Sun, Shaofei Zhang, Hongxin Cui, Xiaotong Li, Qiang Dong, Liang Fang, Xing |
author_facet | Sun, Shaofei Zhang, Hongxin Cui, Xiaotong Li, Qiang Dong, Liang Fang, Xing |
author_sort | Sun, Shaofei |
collection | PubMed |
description | Cryptographic algorithm is the most commonly used method of information security protection for many devices. The secret key of cryptographic algorithm is usually stored in these devices’ registers. In this paper, we propose an electromagnetic information leakage model to investigate the relationship between the electromagnetic leakage signal and the secret key. The registers are considered as electric dipole models to illustrate the source of the electromagnetic leakage. The equivalent circuit of the magnetic field probe is developed to bridge the output voltage and the electromagnetic leakage signal. Combining them, the electromagnetic information leakage model’s function relationship can be established. Besides, an electromagnetic leakage model based on multiple linear regression is proposed to recover the secret key and the model’s effectiveness is evaluated by guess entropy. Near field tests are conducted in an unshielded ordinary indoor environment to investigate the electromagnetic side-channel information leakage. The experiment result shows the correctness of the proposed electromagnetic leakage model and it can be used to recover the secret key of the cryptographic algorithm. |
format | Online Article Text |
id | pubmed-8625981 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-86259812021-11-27 Analysis of Electromagnetic Information Leakage Based on Cryptographic Integrated Circuits Sun, Shaofei Zhang, Hongxin Cui, Xiaotong Li, Qiang Dong, Liang Fang, Xing Entropy (Basel) Article Cryptographic algorithm is the most commonly used method of information security protection for many devices. The secret key of cryptographic algorithm is usually stored in these devices’ registers. In this paper, we propose an electromagnetic information leakage model to investigate the relationship between the electromagnetic leakage signal and the secret key. The registers are considered as electric dipole models to illustrate the source of the electromagnetic leakage. The equivalent circuit of the magnetic field probe is developed to bridge the output voltage and the electromagnetic leakage signal. Combining them, the electromagnetic information leakage model’s function relationship can be established. Besides, an electromagnetic leakage model based on multiple linear regression is proposed to recover the secret key and the model’s effectiveness is evaluated by guess entropy. Near field tests are conducted in an unshielded ordinary indoor environment to investigate the electromagnetic side-channel information leakage. The experiment result shows the correctness of the proposed electromagnetic leakage model and it can be used to recover the secret key of the cryptographic algorithm. MDPI 2021-11-13 /pmc/articles/PMC8625981/ /pubmed/34828206 http://dx.doi.org/10.3390/e23111508 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Sun, Shaofei Zhang, Hongxin Cui, Xiaotong Li, Qiang Dong, Liang Fang, Xing Analysis of Electromagnetic Information Leakage Based on Cryptographic Integrated Circuits |
title | Analysis of Electromagnetic Information Leakage Based on Cryptographic Integrated Circuits |
title_full | Analysis of Electromagnetic Information Leakage Based on Cryptographic Integrated Circuits |
title_fullStr | Analysis of Electromagnetic Information Leakage Based on Cryptographic Integrated Circuits |
title_full_unstemmed | Analysis of Electromagnetic Information Leakage Based on Cryptographic Integrated Circuits |
title_short | Analysis of Electromagnetic Information Leakage Based on Cryptographic Integrated Circuits |
title_sort | analysis of electromagnetic information leakage based on cryptographic integrated circuits |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8625981/ https://www.ncbi.nlm.nih.gov/pubmed/34828206 http://dx.doi.org/10.3390/e23111508 |
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