Mediated Semi-Quantum Key Distribution Using Single Photons

Po Hua Lin, Chia Wei Tsai, Tzonelih Hwang

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Abstract

A new mediated semi-quantum key distribution (SQKD) protocol is proposed, allowing two classical participants to share a secret key with the help of an untrusted third party, who only needs to generate single photons and perform Bell measurements. This is the first work attempting to reduce the quantum overhead of the untrusted third party, which makes the mediated SQKD even more practical. The proposed protocol is shown to be free from several well-known attacks.

Original languageEnglish
Article number1800347
JournalAnnalen der Physik
Volume531
Issue number8
DOIs
Publication statusPublished - 2019 Jan 1

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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