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

Jonte R. Hance; John Rarity

doi:10.1016/j.ijleo.2021.167451

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arXiv · 2106.08718

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

Jonte R. Hance·John Rarity

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Abstract

In a recent paper (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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BibTeX RIS

Jonte R. Hance, John Rarity. 2021-06-16. Comment on "Scheme of the arrangement for attack on the protocol BB84". https://doi.org/10.1016/j.ijleo.2021.167451

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