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Measurement-Device-Independent Quantum Key Distribution over Untrustful Metropolitan Network

Tang, Yan-Lin ; Yin, Hua-Lei ; Zhao, Qi ; Liu, Hui ; Sun, Xiang-Xiang ; Huang, Ming-Qi ; Zhang, Wei-Jun ; Chen, Si-Jing ; Zhang, Lu ; You, Li-Xing ; Wang, Zhen ; Liu, Yang ; Lu, Chao-Yang ; Jiang, Xiao ; Ma, Xiongfeng ; Zhang, Qiang ; Chen, Teng-Yun ; Pan, Jian-Wei

Physical review. X, 2016-03, Vol.6 (1), p.011024, Article 011024 [Periódico revisado por pares]

College Park: American Physical Society

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Título:
Measurement-Device-Independent Quantum Key Distribution over Untrustful Metropolitan Network
Autor: Tang, Yan-Lin ; Yin, Hua-Lei ; Zhao, Qi ; Liu, Hui ; Sun, Xiang-Xiang ; Huang, Ming-Qi ; Zhang, Wei-Jun ; Chen, Si-Jing ; Zhang, Lu ; You, Li-Xing ; Wang, Zhen ; Liu, Yang ; Lu, Chao-Yang ; Jiang, Xiao ; Ma, Xiongfeng ; Zhang, Qiang ; Chen, Teng-Yun ; Pan, Jian-Wei
Assuntos: Accountability ; Cryptography ; Eavesdropping ; Field study ; Field tests ; Infrared lasers ; Networks ; Optimization ; Quantum cryptography ; Quantum mechanics ; Relay ; Security ; Topology
É parte de: Physical review. X, 2016-03, Vol.6 (1), p.011024, Article 011024
Descrição: Quantum cryptography holds the promise to establish an information-theoretically secure global network. All field tests of metropolitan-scale quantum networks to date are based on trusted relays. The security critically relies on the accountability of the trusted relays, which will break down if the relay is dishonest or compromised. Here, we construct a measurement-device-independent quantum key distribution (MDIQKD) network in a star topology over a 200-square-kilometer metropolitan area, which is secure against untrustful relays and against all detection attacks. In the field test, our system continuously runs through one week with a secure key rate 10 times larger than previous results. Our results demonstrate that the MDIQKD network, combining the best of both worlds—security and practicality, constitutes an appealing solution to secure metropolitan communications.
Editor: College Park: American Physical Society
Idioma: Inglês

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Measurement-Device-Independent Quantum Key Distribution over Untrustful Metropolitan Network

Tang, Yan-Lin ; Yin, Hua-Lei ; Zhao, Qi ; Liu, Hui ; Sun, Xiang-Xiang ; Huang, Ming-Qi ; Zhang, Wei-Jun ; Chen, Si-Jing ; Zhang, Lu ; You, Li-Xing ; Wang, Zhen ; Liu, Yang ; Lu, Chao-Yang ; Jiang, Xiao ; Ma, Xiongfeng ; Zhang, Qiang ; Chen, Teng-Yun ; Pan, Jian-Wei

College Park: American Physical Society

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