A novel quantum information hiding protocol based on entanglement swapping of high-level Bell states

Using entanglement swapping of high-level Bell states, we first derive a covert layer between the secret message and the possible output results of the entanglement swapping between any two generalized Bell states, and then propose a novel high-efficiency quantum information hiding protocol based on...

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Bibliographic Details
Published in:Chinese physics B 2015-05, Vol.24 (5), p.231-238
Main Author: 徐淑奖 陈秀波 王连海 钮心忻 杨义先
Format: Article
Language:English
Subjects:
Bells
Bell态
Channels
Consumption
Entanglement
Messages
Security
Transmission
信息隐藏
协议
安全直接通信
纠缠交换
输出结果
量子态
隐蔽通道
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Summary:Using entanglement swapping of high-level Bell states, we first derive a covert layer between the secret message and the possible output results of the entanglement swapping between any two generalized Bell states, and then propose a novel high-efficiency quantum information hiding protocol based on the covert layer. In the proposed scheme, a covert channel can be built up under the cover of a high-level quantum secure direct communication （QSDC） channel for securely transmitting secret messages without consuming any auxiliary quantum state or any extra communication resource. It is shown that this protocol not only has a high embedding efficiency but also achieves a good imperceptibility as well as a high security.
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/24/5/050306