Cargando…
Differential Phase Shift Quantum Secret Sharing Using a Twin Field with Asymmetric Source Intensities
As an essential application of quantum mechanics in classical cryptography, quantum secret sharing has become an indispensable component of quantum internet. Recently, a differential phase shift quantum secret sharing protocol using a twin field has been proposed to break the linear rate-distance bo...
Autores principales: | , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8227985/ https://www.ncbi.nlm.nih.gov/pubmed/34199849 http://dx.doi.org/10.3390/e23060716 |
_version_ | 1783712636314058752 |
---|---|
author | Jia, Zhao-Ying Gu, Jie Li, Bing-Hong Yin, Hua-Lei Chen, Zeng-Bing |
author_facet | Jia, Zhao-Ying Gu, Jie Li, Bing-Hong Yin, Hua-Lei Chen, Zeng-Bing |
author_sort | Jia, Zhao-Ying |
collection | PubMed |
description | As an essential application of quantum mechanics in classical cryptography, quantum secret sharing has become an indispensable component of quantum internet. Recently, a differential phase shift quantum secret sharing protocol using a twin field has been proposed to break the linear rate-distance boundary. However, this original protocol has a poor performance over channels with asymmetric transmittances. To make it more practical, we present a differential phase shift quantum secret sharing protocol with asymmetric source intensities and give the security proof of our protocol against individual attacks. Taking finite-key effects into account, our asymmetric protocol can theoretically obtain the key rate two orders of magnitude higher than that of the original protocol when the difference in length between Alice’s channel and Bob’s is fixed at 14 km. Moreover, our protocol can provide a high key rate even when the difference is quite large and has great robustness against finite-key effects. Therefore, our work is meaningful for the real-life applications of quantum secret sharing. |
format | Online Article Text |
id | pubmed-8227985 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-82279852021-06-26 Differential Phase Shift Quantum Secret Sharing Using a Twin Field with Asymmetric Source Intensities Jia, Zhao-Ying Gu, Jie Li, Bing-Hong Yin, Hua-Lei Chen, Zeng-Bing Entropy (Basel) Article As an essential application of quantum mechanics in classical cryptography, quantum secret sharing has become an indispensable component of quantum internet. Recently, a differential phase shift quantum secret sharing protocol using a twin field has been proposed to break the linear rate-distance boundary. However, this original protocol has a poor performance over channels with asymmetric transmittances. To make it more practical, we present a differential phase shift quantum secret sharing protocol with asymmetric source intensities and give the security proof of our protocol against individual attacks. Taking finite-key effects into account, our asymmetric protocol can theoretically obtain the key rate two orders of magnitude higher than that of the original protocol when the difference in length between Alice’s channel and Bob’s is fixed at 14 km. Moreover, our protocol can provide a high key rate even when the difference is quite large and has great robustness against finite-key effects. Therefore, our work is meaningful for the real-life applications of quantum secret sharing. MDPI 2021-06-04 /pmc/articles/PMC8227985/ /pubmed/34199849 http://dx.doi.org/10.3390/e23060716 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Jia, Zhao-Ying Gu, Jie Li, Bing-Hong Yin, Hua-Lei Chen, Zeng-Bing Differential Phase Shift Quantum Secret Sharing Using a Twin Field with Asymmetric Source Intensities |
title | Differential Phase Shift Quantum Secret Sharing Using a Twin Field with Asymmetric Source Intensities |
title_full | Differential Phase Shift Quantum Secret Sharing Using a Twin Field with Asymmetric Source Intensities |
title_fullStr | Differential Phase Shift Quantum Secret Sharing Using a Twin Field with Asymmetric Source Intensities |
title_full_unstemmed | Differential Phase Shift Quantum Secret Sharing Using a Twin Field with Asymmetric Source Intensities |
title_short | Differential Phase Shift Quantum Secret Sharing Using a Twin Field with Asymmetric Source Intensities |
title_sort | differential phase shift quantum secret sharing using a twin field with asymmetric source intensities |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8227985/ https://www.ncbi.nlm.nih.gov/pubmed/34199849 http://dx.doi.org/10.3390/e23060716 |
work_keys_str_mv | AT jiazhaoying differentialphaseshiftquantumsecretsharingusingatwinfieldwithasymmetricsourceintensities AT gujie differentialphaseshiftquantumsecretsharingusingatwinfieldwithasymmetricsourceintensities AT libinghong differentialphaseshiftquantumsecretsharingusingatwinfieldwithasymmetricsourceintensities AT yinhualei differentialphaseshiftquantumsecretsharingusingatwinfieldwithasymmetricsourceintensities AT chenzengbing differentialphaseshiftquantumsecretsharingusingatwinfieldwithasymmetricsourceintensities |