A New Quantum Secure Direct Communication Scheme with Authentication

A new quantum secure direct communication （QSDC） scheme with authentication is proposed based on polarized photons and EPR pairs. EPR pairs are used to transmit information, while polarized photons are used to detect Eve and their encoding bases are used to transmit authentication information. Alice...

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Bibliographic Details
Published in:Chinese physics letters 2010-05, Vol.27 (5), p.23-25
Main Author: 刘丹 裴昌幸 权东晓 赵楠
Format: Article
Language:English
Subjects:
Authentication
Distillation
Encoding
EPR对
Legal
Photons
偏振编码
用户共享
电子顺磁共振
身份证号码
通信方案
量子安全直接通信
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Summary:A new quantum secure direct communication （QSDC） scheme with authentication is proposed based on polarized photons and EPR pairs. EPR pairs are used to transmit information, while polarized photons are used to detect Eve and their encoding bases are used to transmit authentication information. Alice and Bob have their own identity number which is shared by legal users only. The identity number is encoded on the bases of polarized photons and distilled if there is no Eve. Compared with other QSDC schemes with authentication, this new scheme is considerably easier and less expensive to implement in a practical setting.
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/27/5/050306