Proof of Security of a Semi-Device-Independent Quantum Key Distribution Protocol Supported by the National Basic Research Program of China under Grant No 2013CB338002, and the National Natural Science Foundation of China under Grant Nos 11304397 and 61505261

Semi-device-independent quantum key distribution (SDI-QKD) has been proposed by applying the quantum dimension correlation, and the security relies on the violation of quantum dimension witness inequalities. We prove the security of the SDI-QKD protocol under the depolarization channel by considerin...

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Bibliographic Details
Published inChinese physics letters Vol. 34; no. 2
Main Authors Xu, Peng, Bao, Wan-Su, Li, Hong-Wei, Wang, Yang, Bao, Hai-Ze
Format Journal Article
LanguageEnglish
Published Chinese Physical Society and IOP Publishing Ltd 01.02.2017
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Summary:Semi-device-independent quantum key distribution (SDI-QKD) has been proposed by applying the quantum dimension correlation, and the security relies on the violation of quantum dimension witness inequalities. We prove the security of the SDI-QKD protocol under the depolarization channel by considering the quantum dimension witness inequalities and minimum entropy and the specific process of the QKD protocol, combining with a four-quantum-state preparation and three measurement bases. We also provide the relationship between the dimension witness value, the error rate and the security key rate by the numerical simulation.
ISSN:0256-307X
DOI:10.1088/0256-307X/34/2/020302