北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2008, Vol. 31 ›› Issue (2): 26-29.doi: 10.13190/jbupt.200802.26.lins

• 论文 • 上一篇    下一篇

基于纠缠交换(n-1,n)门限量子秘密共享方案

林 崧1,2,秦素娟1,陈秀波1,温巧燕1,朱甫臣3   

  1. 1.北京邮电大学 网络与交换技术国家重点实验室, 北京100876; 2. 福建师范大学 数学与计算机科学学院, 福州 350007; 3. 现代通信国家级重点实验室, 成都 610041
  • 收稿日期:2007-06-05 修回日期:1900-01-01 出版日期:2008-04-28 发布日期:2008-04-28
  • 通讯作者: 林 崧

A (n-1, n) Threshold Quantum Secret Sharing Scheme Based on Entanglement Swapping

LIN Song1,2, QIN Su-juan1, CHEN Xiu-bo1, WEN Qiao-yan1, ZHU Fu-chen3   

  1. 1. State key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China; 2. School of mathematics and computer science, Fujian Normal University, Fuzhou 350007, China; 3. National Laboratory for Modern Communications, Chengdu 610041, China
  • Received:2007-06-05 Revised:1900-01-01 Online:2008-04-28 Published:2008-04-28
  • Contact: LIN Song

摘要:

利用量子纠缠交换的思想,给出了一个(n-1,n)门限量子秘密共享方案(QSS)。发送方利用局域幺正操作和纠缠交换,将子秘密分发给每个参与者。双方通过随机非对称使用消息模式和控制模式来保证量子信道的安全。研究表明,本方案是安全的。与采用GHZ纠缠态的量子秘密共享方案相比,本方案具有较高的效率。同时,本方案的实现只涉及Bell态,在现有的技术基础上是可行的。

关键词: Bell态, 量子纠缠交换, 量子秘密共享

Abstract:

Drawing idea from the quantum entanglement swapping, a quantum (n-1,n)threshold scheme is proposed. By local unitary operation and entanglement swapping, the sender can transmit the piece of secret to the participant. To ensure the qubits be transmitted between two parties in a secure manner,the sender switches randomly the message mode to control mode asymmetrically. A security analyses on this scheme is then made. It shows that this scheme is secure. Compared with the quantum secret sharing scheme with Greenberger-Horne-Zeilinger (GHZ) state, the scheme achieves a high efficiency. Furthermore, since the Einstein-Podolsky-Rosen (EPR) pair was used, the experimental realization of the protocol becomes feasible

Key words: Bell state, entanglement swapping, quantum secret sharing

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