Experimental measurement-device-independent quantum digital signatures over a metropolitan network

被引：53

作者：

Yin, Hua-Lei ^{[1
,2
,3
,4
]}

Wang, Wei-Long ^{[5
]}

Tang, Yan-Lin ^{[1
,2
,3
,4
]}

Zhao, Qi ^{[6
]}

Liu, Hui ^{[1
,2
,3
,4
]}

Sun, Xiang-Xiang ^{[1
,2
,3
,4
]}

Zhang, Wei-Jun ^{[7
]}

Li, Hao ^{[7
]}

Puthoor, Ittoop Vergheese ^{[8
]}

You, Li-Xing ^{[7
]}

Andersson, Erika ^{[8
]}

Wang, Zhen ^{[7
]}

Liu, Yang ^{[1
,2
,3
,4
]}

Jiang, Xiao ^{[1
,2
,3
,4
]}

Ma, Xiongfeng ^{[3
,4
,6
]}

Zhang, Qiang ^{[1
,2
,3
,4
]}

Curty, Marcos ^{[5
]}

Chen, Teng-Yun ^{[1
,2
,3
,4
]}

Pan, Jian-Wei ^{[1
,2
,3
,4
]}

机构：

[1] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China

[2] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Anhui, Peoples R China

[3] Univ Sci & Technol China, CAS Ctr Excellence, Hefei 230026, Anhui, Peoples R China

[4] Univ Sci & Technol China, Synerget Innovat Ctr Quantum Informat & Quantum P, Hefei 230026, Anhui, Peoples R China

[5] Univ Vigo, Escola Enxenaria Telecomunicac, Dept Signal Theory & Commun, Vigo 36310, Spain

[6] Tsinghua Univ, Inst Interdisciplinary Informat Sci, Ctr Quantum Informat, Beijing 100084, Peoples R China

[7] Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Funct Mat Informat, Shanghai 200050, Peoples R China

[8] Heriot Watt Univ, Inst Photon & Quantum Sci, SUPA, Edinburgh EH14 4AS, Midlothian, Scotland

来源：

PHYSICAL REVIEW A | 2017年 / 95卷 / 04期

基金：

中国国家自然科学基金; 英国工程与自然科学研究理事会;

关键词：

KEY DISTRIBUTION;

D O I：

10.1103/PhysRevA.95.042338

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Quantum digital signatures (QDSs) provide a means for signing electronic communications with informationtheoretic security. However, all previous demonstrations of quantum digital signatures assume trusted measurement devices. This renders them vulnerable against detector side-channel attacks, just like quantum key distribution. Here we exploit a measurement-device-independent (MDI) quantum network, over a metropolitan area, to perform a field test of a three-party MDI QDS scheme that is secure against any detector side-channel attack. In so doing, we are able to successfully sign a binary message with a security level of about 10-7. Remarkably, our work demonstrates the feasibility of MDI QDSs for practical applications.

引用

页数：10

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