基于量子隐形传态和MDI协议的量子网络

量子电子学报 ›› 2019, Vol. 36 ›› Issue (4): 450-455.

基于量子隐形传态和MDI协议的量子网络

于浩¹,张影²,³,卓文合¹,完颜绍澎²,³,刘金锁²,³

1 国网安徽省电力有限公司信息通信分公司, 安徽合肥 230061； 2 南瑞集团有限公司（国网电力科学研究院有限公司）, 江苏南京 211000； 3 南京南瑞国盾量子技术有限公司, 江苏南京 211000

收稿日期:2018-11-26 修回日期:2019-05-15 出版日期:2019-07-28 发布日期:2019-07-11
作者简介:于浩(1973–), 安徽临泉人, 硕士, 高级工程师，主要从事量子密码算法、量子保密通信技术方面的研究。E-mail: yuh2158@ah.sgcc.com.cn
基金资助:
Supported by State Grid Anhui Electric Power Co., Ltd. 2018 Innovation Project(国网安徽省电力有限公司2018年创新项目，B1120718003P)

Quantum network based on quantum teleportation and MDI protocol

YU Hao1，ZHANG Yi2,3，ZHUO Wenhe1，WANYAN Shaopeng2*，LIU Jinsuo2

1 Information and Communication Branch of State Grid Anhui Electric Power Co., Ltd., Hefei 230061, China; 2 Nari Group Corporation/State Grid Electronic Power Research Institute, Nanjing 211000, China; 3 NRGD Quantum CTEK, LTD., Nanjing 211000, China

Received:2018-11-26 Revised:2019-05-15 Published:2019-07-28 Online:2019-07-11

摘要/Abstract

摘要： 量子密钥分发是利用量子力学特性来保证通信安全性。它使通信的双方能够产生并分享一个随机的、安全的密钥，用于对传输数据进行加解密。测量装置无关量子密钥分发（MDI-QKD）是量子密钥分发的重要组成部分，MDI-QKD协议能够解决量子密钥分发协议中因为测量设备引起的安全漏洞，是保证协议的安全性的同时延长通信距离是MDI-QKD协议的一个新的重要研究方向。本文通过对量子网络中量子隐形传态原理进行深入分析，针对MDI-QKD协议的特殊性，将Alice端制备的量子态在量子网络中通过隐形传态的方式传送给David端，而后David端与通信的另一方用户Bob一起运行MDI-QKD协议，提出将量子隐形传态应用到与测量设备无关的量子密钥分发协议中，阐述了基于量子隐形传态的MDI-QKD协议的实现流程，并对MDI-QKD协议的密钥率进行了分析，分析基础之上增加了量子态的保真度参数，MDI-QKD协议的增益效果十分明显。通过不同的隐形传态节点数的仿真进行实验，仿真实验发现在保证协议安全性的同时可以大幅度延长密钥的安全传输距离，保证了安全协议对测量设备的不依赖性，有效地避免了QKD系统中测量器端的所有攻击。

关键词: 量子信息, 量子密钥分发, 量子隐形传态, 测量设备无关量子密钥分发, 密钥率

Abstract: Quantum key distribution uses quantum mechanical properties to ensure communication security. It enables both parties to generate and share a random and secure key for encrypting and decrypting the transmitted data. Measurement device-independent quantum key distribution (MDI-QKD) is an important part of quantum key distribution. The MDI-QKD protocol can solve the security vulnerabilities caused by measurement devices in the quantum key distribution protocol and guarantee the security of the protocol. Extending the communication distance is a new and important research direction of the MDI-QKD protocol. In this paper, through the in-depth analysis of quantum teleportation principle in quantum network, according to the particularity of MDI-QKD protocol, the quantum state prepared by Alice is transmitted to David by teleportation in quantum network, and then David and Bob run the MDI-QKD protocol together. The protocol is proposed to apply the quantum teleportation to the MDI-QKD protocol. The key rate of the MDI-QKD protocol is analyzed. The simulation experimental results show that the security transmission distance of the key can be greatly extended while ensuring the security of the protocol, and the security protocol is not dependent on the measurement equipment, which effectively avoids the problem. All attacks on the meter side in the QKD system.

Key words: quantum information, quantum key distribution, quantum teleportation, measurement device-independent quantum key distribution, key rate

中图分类号:

O431

于浩张影卓文合完颜绍澎刘金锁. 基于量子隐形传态和MDI协议的量子网络[J]. 量子电子学报, 2019, 36(4): 450-455.

YU Hao1，ZHANG Yi2,3，ZHUO Wenhe1，WANYAN Shaopeng2*，LIU Jinsuo2. Quantum network based on quantum teleportation and MDI protocol[J]. Chinese Journal of Quantum Electronics, 2019, 36(4): 450-455.

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