Detector-device-independent quantum key distribution: Security analysis and fast implementation

Boaron, Alberto; Korzh, Boris; Houlmann, Raphaël; Boso, Gianluca; Lim, Ci Wen; Martin, Anthony; Zbinden, Hugo

doi:10.1063/1.4960093

Scientific article

English

Detector-device-independent quantum key distribution: Security analysis and fast implementation

Contributors

Boaron, Alberto; Korzh, Boris

; Houlmann, Raphaël; Boso, Gianluca; Lim, Ci Wen; Martin, Anthony; Zbinden, Hugo

Published in

Journal of applied physics, vol. 120, no. 6, 063101

Publication date

2016

Abstract

One of the most pressing issues in quantum key distribution (QKD) is the problem of detector side-channel attacks. To overcome this problem, researchers proposed an elegant “time-reversal” QKD protocol called measurement-device-independent QKD (MDI-QKD), which is based on time-reversed entanglement swapping. However, MDI-QKD is more challenging to implement than standard point-to-point QKD. Recently, an intermediary QKD protocol called detector-device-independent QKD (DDI-QKD) has been proposed to overcome the drawbacks of MDI-QKD, with the hope that it would eventually lead to a more efficient detector side-channel-free QKD system. Here, we analyze the security of DDI-QKD and elucidate its security assumptions. We find that DDI-QKD is not equivalent to MDI-QKD, but its security can be demonstrated with reasonable assumptions. On the more practical side, we consider the feasibility of DDI-QKD and present a fast experimental demonstration (clocked at 625 MHz), capable of secret key exchange up to more than 90 km.

UNIGE affiliation entities

Faculté des sciences / Section de physique / Groupe de physique appliquée

UNIGE research groups

Groupe Zbinden

Citation (ISO format)

BOARON, Alberto et al. Detector-device-independent quantum key distribution: Security analysis and fast implementation. In: Journal of applied physics, 2016, vol. 120, n° 6, p. 063101. doi: 10.1063/1.4960093

Article (Published version)

Identifiers

PID : unige:86006
DOI : 10.1063/1.4960093

Additional URL for this publication

http://scitation.aip.org/content/aip/journal/jap/120/6/10.1063/1.4960093

Journal ISSN

0021-8979

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580downloads

Creation

10/08/2016 10:16:00

First validation

10/08/2016 10:16:00

Update

13/10/2025 20:46:09

Status update

26/05/2023 15:42:47

Last indexation

13/10/2026 01:53:33

Detector-device-independent quantum key distribution: Security analysis and fast implementation

Contributors

Published in

Publication date

Abstract

UNIGE affiliation entities

UNIGE research groups

Citation (ISO format)

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Identifiers

Additional URL for this publication

Journal ISSN

Technical informations

Creation

First validation

Update

Status update

Last indexation