par Cao, Zhengjun ;Markowitch, Olivier
Référence Quantum Information Processing, 20, 2, 74
Publication Publié, 2021-02-01
Article révisé par les pairs
Résumé : We remark that the quantum key agreement protocol (Yang et al. in Quantum Inf Process 18(10):322, 2019) is flawed. It is unnecessary for Bob to prepare his secret key KB, because it is finally announced and accessible to adversaries. We find, KB has no relation to the confidentiality of the final agreed key KAB= KA⊕ KB. It is just a key transfer scheme, not a general key agreement scheme. We also find there is short of a code for Bob to extract bits from the measured results.

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