Comment on ``Scheme of the arrangement for attack on the protocol BB84"

Jonte R Hance

doi:10.1016/j.ijleo.2021.167451

Comment on ``Scheme of the arrangement for attack on the protocol BB84"

Jonte R Hance

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Abstract

In a recent paper (\textit{Scheme of the arrangement for attack on the protocol BB84}, Optik 127(18):7083-7087, Sept 2016), a protocol was proposed for using weak measurement to attack BB84. This claimed the four basis states typically used could be perfectly discriminated, and so an interceptor could obtain all information carried. We show this attack fails when considered using standard quantum mechanics, as expected - such ``single-shot" quantum state discrimination is impossible, even using weak measurement.

Original language	English
Article number	167451
Number of pages	3
Journal	Optik
Volume	243
Early online date	17 Jun 2021
DOIs	https://doi.org/10.1016/j.ijleo.2021.167451
Publication status	Published - Oct 2021

Bibliographical note

Funding Information:
This work was supported by the Engineering and Physical Sciences Research Council (Grants EP/P510269/1 , EP/T001011/1 , EP/R513386/1 , EP/M013472/1 and EP/L024020/1 ).

Publisher Copyright:
© 2021 The Authors

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QComms2: 8031 EP/T001011/1 Quantum Communication Hub via York
Rarity, J. G., Nejabati, R., Simeonidou, D., Sahin, D., Kanellos, G., Aktas, D. V. C., Joshi, S. K., Lowndes, D. L. D., Venkatachalam, N., Hugues Salas, E., Woodland, E. M., Erven, C., Zhang, P., Hance, J. R., Clark, M., Rosenfeld, L. M., Hastings, E. M. J., Johlinger, F. B., Wang, R., Stange Tessinari, R., Solomons, N. R., Fasoulakis, T. & Alia, O.
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Cite this

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title = "Comment on ``Scheme of the arrangement for attack on the protocol BB84{"}",

abstract = " In a recent paper (\textit{Scheme of the arrangement for attack on the protocol BB84}, Optik 127(18):7083-7087, Sept 2016), a protocol was proposed for using weak measurement to attack BB84. This claimed the four basis states typically used could be perfectly discriminated, and so an interceptor could obtain all information carried. We show this attack fails when considered using standard quantum mechanics, as expected - such ``single-shot{"} quantum state discrimination is impossible, even using weak measurement.",

author = "Hance, {Jonte R}",

note = "Funding Information: This work was supported by the Engineering and Physical Sciences Research Council (Grants EP/P510269/1 , EP/T001011/1 , EP/R513386/1 , EP/M013472/1 and EP/L024020/1 ). Publisher Copyright: {\textcopyright} 2021 The Authors",

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N2 - In a recent paper (\textit{Scheme of the arrangement for attack on the protocol BB84}, Optik 127(18):7083-7087, Sept 2016), a protocol was proposed for using weak measurement to attack BB84. This claimed the four basis states typically used could be perfectly discriminated, and so an interceptor could obtain all information carried. We show this attack fails when considered using standard quantum mechanics, as expected - such ``single-shot" quantum state discrimination is impossible, even using weak measurement.

AB - In a recent paper (\textit{Scheme of the arrangement for attack on the protocol BB84}, Optik 127(18):7083-7087, Sept 2016), a protocol was proposed for using weak measurement to attack BB84. This claimed the four basis states typically used could be perfectly discriminated, and so an interceptor could obtain all information carried. We show this attack fails when considered using standard quantum mechanics, as expected - such ``single-shot" quantum state discrimination is impossible, even using weak measurement.

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DO - 10.1016/j.ijleo.2021.167451

M3 - Article (Academic Journal)

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JO - Optik

JF - Optik

SN - 0030-4026

M1 - 167451

ER -

Comment on ``Scheme of the arrangement for attack on the protocol BB84"

Abstract

Bibliographical note

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QComms2: 8031 EP/T001011/1 Quantum Communication Hub via York

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