Single trace side-channel attack on key reconciliation in quantum key distribution system and its efficient countermeasures

Although quantum mechanics guarantees the security of the quantum key distribution system, it is crucial to examine whether the implementation flaws can lead to the disclosure of sensitive information. In this paper, we propose the side-channel attack on the key reconciliation in the quantum key dis...

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Main Authors:	Dongjun Park, GyuSang Kim, Donghoe Heo, Suhri Kim, HeeSeok Kim, Seokhie Hong
Format:	Article
Language:	English
Published:	Elsevier 2021-03-01
Series:	ICT Express
Subjects:	Low-density parity-check code Quantum key distribution Security Side-channel attack Single trace attack
Online Access:	http://www.sciencedirect.com/science/article/pii/S2405959521000138

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spelling	doaj-86d323c65813437baafdd9dac0d957182021-03-11T04:25:41ZengElsevierICT Express2405-95952021-03-01713640Single trace side-channel attack on key reconciliation in quantum key distribution system and its efficient countermeasuresDongjun Park0GyuSang Kim1Donghoe Heo2Suhri Kim3HeeSeok Kim4Seokhie Hong5Institute of Cyber Security and Privacy (ICSP), Graduate School of Information Security, Korea University, Seoul 02841, South KoreaInstitute of Cyber Security and Privacy (ICSP), Graduate School of Information Security, Korea University, Seoul 02841, South KoreaInstitute of Cyber Security and Privacy (ICSP), Graduate School of Information Security, Korea University, Seoul 02841, South KoreaInstitute of Cyber Security and Privacy (ICSP), Graduate School of Information Security, Korea University, Seoul 02841, South KoreaDepartment of Cyber Security, College of Science and Technology, Korea University, Sejong 30019, South Korea; Corresponding author.Institute of Cyber Security and Privacy (ICSP), Graduate School of Information Security, Korea University, Seoul 02841, South KoreaAlthough quantum mechanics guarantees the security of the quantum key distribution system, it is crucial to examine whether the implementation flaws can lead to the disclosure of sensitive information. In this paper, we propose the side-channel attack on the key reconciliation in the quantum key distribution system. In this system, the sifted key and the syndrome are used to derive a shared secret key between two users. From our attack, these can be fully recovered through a single power consumption trace measured during the syndrome computation on the sender’s side. Additionally, we propose efficient countermeasures to thwart such side-channel attacks.http://www.sciencedirect.com/science/article/pii/S2405959521000138Low-density parity-check codeQuantum key distributionSecuritySide-channel attackSingle trace attack
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Dongjun Park GyuSang Kim Donghoe Heo Suhri Kim HeeSeok Kim Seokhie Hong
spellingShingle	Dongjun Park GyuSang Kim Donghoe Heo Suhri Kim HeeSeok Kim Seokhie Hong Single trace side-channel attack on key reconciliation in quantum key distribution system and its efficient countermeasures ICT Express Low-density parity-check code Quantum key distribution Security Side-channel attack Single trace attack
author_facet	Dongjun Park GyuSang Kim Donghoe Heo Suhri Kim HeeSeok Kim Seokhie Hong
author_sort	Dongjun Park
title	Single trace side-channel attack on key reconciliation in quantum key distribution system and its efficient countermeasures
title_short	Single trace side-channel attack on key reconciliation in quantum key distribution system and its efficient countermeasures
title_full	Single trace side-channel attack on key reconciliation in quantum key distribution system and its efficient countermeasures
title_fullStr	Single trace side-channel attack on key reconciliation in quantum key distribution system and its efficient countermeasures
title_full_unstemmed	Single trace side-channel attack on key reconciliation in quantum key distribution system and its efficient countermeasures
title_sort	single trace side-channel attack on key reconciliation in quantum key distribution system and its efficient countermeasures
publisher	Elsevier
series	ICT Express
issn	2405-9595
publishDate	2021-03-01
description	Although quantum mechanics guarantees the security of the quantum key distribution system, it is crucial to examine whether the implementation flaws can lead to the disclosure of sensitive information. In this paper, we propose the side-channel attack on the key reconciliation in the quantum key distribution system. In this system, the sifted key and the syndrome are used to derive a shared secret key between two users. From our attack, these can be fully recovered through a single power consumption trace measured during the syndrome computation on the sender’s side. Additionally, we propose efficient countermeasures to thwart such side-channel attacks.
topic	Low-density parity-check code Quantum key distribution Security Side-channel attack Single trace attack
url	http://www.sciencedirect.com/science/article/pii/S2405959521000138
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Single trace side-channel attack on key reconciliation in quantum key distribution system and its efficient countermeasures

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