Quantum steganography with large payload based on dense coding and entanglement swapping of Greenberger-Horne-Zeilinger states

doi:10.1088/1674-1056/22/5/050309

中国物理B ›› 2013, Vol. 22 ›› Issue (5): 50309-050309.doi: 10.1088/1674-1056/22/5/050309

Quantum steganography with large payload based on dense coding and entanglement swapping of Greenberger-Horne-Zeilinger states

叶天语, 蒋丽珍

College of Information & Electronic Engineering, Zhejiang Gongshang University, Hangzhou 310018, China

收稿日期:2012-11-22 修回日期:2012-12-27 出版日期:2013-04-01 发布日期:2013-04-01
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 60972071) and the Natural Science Foundation of Zhejiang Province, China (Grant Nos. Y6100421 and LQ12F02012).

Quantum steganography with large payload based on dense coding and entanglement swapping of Greenberger-Horne-Zeilinger states

Ye Tian-Yu (叶天语), Jiang Li-Zhen (蒋丽珍)

College of Information & Electronic Engineering, Zhejiang Gongshang University, Hangzhou 310018, China

Received:2012-11-22 Revised:2012-12-27 Online:2013-04-01 Published:2013-04-01
Contact: Ye Tian-Yu E-mail:flystu008@yahoo.com.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 60972071) and the Natural Science Foundation of Zhejiang Province, China (Grant Nos. Y6100421 and LQ12F02012).

摘要/Abstract

摘要： A quantum steganography protocol with a large payload is proposed based on the dense coding and the entanglement swapping of the Greenberger-Horne-Zeilinger (GHZ) states. Its super quantum channel is formed by building up a hidden channel within the original quantum secure direct communication (QSDC) scheme. Based on the original QSDC, secret messages are transmitted by integrating the dense coding and the entanglement swapping of the GHZ states. The capacity of the super quantum channel achieves six bits per round covert communication, much higher than the previous quantum steganography protocols. Its imperceptibility is good, since the information and the secret messages can be regarded to be random or pseudo-random. Moreover, its security is proved to be reliable.

关键词: quantum steganography, quantum secure direct communication, dense coding, entanglement swapping

Abstract: A quantum steganography protocol with a large payload is proposed based on the dense coding and the entanglement swapping of the Greenberger-Horne-Zeilinger (GHZ) states. Its super quantum channel is formed by building up a hidden channel within the original quantum secure direct communication (QSDC) scheme. Based on the original QSDC, secret messages are transmitted by integrating the dense coding and the entanglement swapping of the GHZ states. The capacity of the super quantum channel achieves six bits per round covert communication, much higher than the previous quantum steganography protocols. Its imperceptibility is good, since the information and the secret messages can be regarded to be random or pseudo-random. Moreover, its security is proved to be reliable.

Key words: quantum steganography, quantum secure direct communication, dense coding, entanglement swapping

中图分类号: (Quantum cryptography and communication security)

03.67.Dd

03.67.Hk (Quantum communication)

叶天语, 蒋丽珍. Quantum steganography with large payload based on dense coding and entanglement swapping of Greenberger-Horne-Zeilinger states[J]. 中国物理B, 2013, 22(5): 50309-050309.

Ye Tian-Yu (叶天语), Jiang Li-Zhen (蒋丽珍). Quantum steganography with large payload based on dense coding and entanglement swapping of Greenberger-Horne-Zeilinger states[J]. Chin. Phys. B, 2013, 22(5): 50309-050309.

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Quantum steganography with large payload based on dense coding and entanglement swapping of Greenberger-Horne-Zeilinger states

Quantum steganography with large payload based on dense coding and entanglement swapping of Greenberger-Horne-Zeilinger states

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