利用GHZ态实现可控的量子秘密共享

doi:10.13190/jbupt.200801.9.066

北京邮电大学学报 ›› 2008, Vol. 31 ›› Issue (1): 9-13.doi: 10.13190/jbupt.200801.9.066

利用GHZ态实现可控的量子秘密共享

孙莹1, 秦素娟1, 温巧燕1, 朱甫臣2

1. 北京邮电大学理学院, 北京 100876; 2. 现代通信国家重点实验室, 成都 610041

收稿日期:2007-02-04 修回日期:1900-01-01 出版日期:2008-02-28 发布日期:2008-02-28
通讯作者: 孙莹

利用GHZ态实现可控的量子秘密共享

SUN Ying1, QIN Su-juan1, WEN Qiao-yan1, ZHU Fu-chen2

1. School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China;
2. National Laboratory for Modern Communications, P.O.Box 810, Chengdu 610041, China

Received:2007-02-04 Revised:1900-01-01 Online:2008-02-28 Published:2008-02-28
Contact: SUN Ying

摘要/Abstract

摘要：

提出了一种利用Greenberger-Horne-Zeilinger(GHZ)态实现秘密重建时机可控的量子秘密共享方案. 该方案充分利用了GHZ态3个粒子间的相关性和Hadamard门的特殊性质，通过让Bob和Charlie共享GHZ态共享联合密钥，并使用Hadamard门保证了协议的可控和安全. 方案中，平均消耗1个GHZ态可以共享3 bit经典信息. 由于所有量子态的传输都是单向的，且除去用于检测窃听的粒子外其他均用于有效传输密钥，所以量子比特效率理论上接近100%.

关键词: 量子密码学, 量子秘密共享, Greenberger-Horne-Zeilinger态, Hadamard门

Abstract:

Based on Greenberger-Horne-Zeilinger（GHZ） state, a controllable quantum secret sharing scheme was proposed. In this scheme, the quantum correlations among the three particles in a GHZ state and the characteristics of the Hadamard gate were exploited sufficiently. Bob and Charlie could obtain the joint key by sharing GHZ states. The Hadamard gate ensured the protocol controllable and secure. One GHZ state could be used to share three bits of message on average. Because all the quantum states are transmitted unidirectionally, and all particles except for the checking ones are used to transmit the joint key, this protocol has the advantage of high intrinsic efficiency, which approaches to 100% in theory.

Key words: quantum cryptography, quantum secret sharing, Greenberger-Horne-Zeilinger State, Hadamard gate

中图分类号:

TN918.1

孙莹1, 秦素娟1, 温巧燕1, 朱甫臣2. 利用GHZ态实现可控的量子秘密共享[J]. 北京邮电大学学报, 2008, 31(1): 9-13.

SUN Ying1, QIN Su-juan1, WEN Qiao-yan1, ZHU Fu-chen2. 利用GHZ态实现可控的量子秘密共享[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2008, 31(1): 9-13.

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利用GHZ态实现可控的量子秘密共享

利用GHZ态实现可控的量子秘密共享

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