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arXiv · 1204.4235

Comment on "Security Proof for Cryptographic Protocols Based Only on Monogamy of Bell's Inequality Violations"

Won-Young Hwang·Oleg Gittsovich
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Abstract

Recently, Pawlowski [Phys. Rev. A 82, 032313 (2010)] claimed to have proven the security of a quantum key distribution by using only the monogamy of Bell's inequality violations. In the proof, however, he tacitly assumed that the eavesdropper's outcome is binary. The assumption cannot be justified because Eve's (eavesdropper's) power can only be limited by natural principle. We provide a counter-example for a step of the proof.

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Won-Young Hwang, Oleg Gittsovich. 2012-04-19. Comment on "Security Proof for Cryptographic Protocols Based Only on Monogamy of Bell's Inequality Violations". https://doi.org/10.1103/physreva.85.046301

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