Unconditional security of relativistic quantum key distribution protocol

被引：0

作者：

Zhuang, Sushuai ^{[1
]}

Yang, Li ^{[1
]}

机构：

[1] Chinese Acad Sci, Grad Univ, State Key Lab Informat Secur, Beijing 100049, Peoples R China

来源：

QUANTUM AND NONLINEAR OPTICS | 2010年 / 7846卷

关键词：

quantum key distribution; unconditional security; relativistic QKD protocol; CSS codes; CRYPTOGRAPHY;

D O I：

10.1117/12.871454

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Relativistic quantum key distribution (QKD) protocol is a kind of modified BB84 QKD protocol based on the principles of not only quantum mechanics but also special relativity. Its advantage compared with BB84 protocol is that all of the qubits could be used for key generation, and Alice and Bob are able to select any measuring bases. We prove its unconditional security against coherent attack via the method based on CSS codes: begin with a modified EPR based protocol which can be proved unconditionally secure, then reduce the protocol to a CSS codes based protocol. Finally, the CSS codes based protocol is demonstrated equivalent to the relativistic QKD protocol, and we arrived at the conclusion of the unconditional security of the final key.

引用

页数：8

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