中国物理B ›› 2017, Vol. 26 ›› Issue (1): 10302-010302.doi: 10.1088/1674-1056/26/1/010302

• GENERAL • 上一篇    下一篇

Measurement-device-independent quantum cryptographic conferencing with an untrusted source

Rui-Ke Chen(陈瑞柯), Wan-Su Bao(鲍皖苏), Yang Wang(汪洋), Hai-Ze Bao(包海泽), Chun Zhou(周淳), Mu-Sheng Jiang(江木生), Hong-Wei Li(李宏伟)   

  1. 1. Zhengzhou Information Science and Technology Institute, Zhengzhou 450001, China;
    2. Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China
  • 收稿日期:2016-07-11 修回日期:2016-09-20 出版日期:2017-01-05 发布日期:2017-01-05
  • 通讯作者: Wan-Su Bao E-mail:2010thzz@sina.com
  • 基金资助:
    Project supported by the National Basic Research Program of China (Grant No. 2013CB338002) and the National Natural Science Foundation of China (Grant Nos. 11304397 and 61505261).

Measurement-device-independent quantum cryptographic conferencing with an untrusted source

Rui-Ke Chen(陈瑞柯)1,2, Wan-Su Bao(鲍皖苏)1,2, Yang Wang(汪洋)1,2, Hai-Ze Bao(包海泽)1,2, Chun Zhou(周淳)1,2, Mu-Sheng Jiang(江木生)1,2, Hong-Wei Li(李宏伟)1,2   

  1. 1. Zhengzhou Information Science and Technology Institute, Zhengzhou 450001, China;
    2. Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China
  • Received:2016-07-11 Revised:2016-09-20 Online:2017-01-05 Published:2017-01-05
  • Contact: Wan-Su Bao E-mail:2010thzz@sina.com
  • Supported by:
    Project supported by the National Basic Research Program of China (Grant No. 2013CB338002) and the National Natural Science Foundation of China (Grant Nos. 11304397 and 61505261).

摘要: Measurement-device-independent quantum cryptographic conferencing (MDI-QCC) protocol puts MDI quantum key distribution (MDI-QKD) forwards to multi-party applications, and suggests a significant framework for practical multi-party quantum communication. In order to mitigate the experimental complexity of MDI-QCC and remove the key assumption (the sources are trusted) in MDI-QCC, we extend the framework of MDI-QKD with an untrusted source to MDI-QCC and give the rigorous security analysis of MDI-QCC with an untrusted source. What is more, in the security analysis we clearly provide a rigorous analytical method for parameters' estimation, which with simple modifications can be applied to not only MDI-QKD with an untrusted source but also arbitrary multi-party communication protocol with an untrusted source. The simulation results show that at reasonable distances the asymptotic key rates for the two cases (with trusted and untrusted sources) almost overlap, which indicates the feasibility of our protocol.

关键词: quantum cryptographic conferencing, measurement-device-independent, quantum key distribution, untrusted source

Abstract: Measurement-device-independent quantum cryptographic conferencing (MDI-QCC) protocol puts MDI quantum key distribution (MDI-QKD) forwards to multi-party applications, and suggests a significant framework for practical multi-party quantum communication. In order to mitigate the experimental complexity of MDI-QCC and remove the key assumption (the sources are trusted) in MDI-QCC, we extend the framework of MDI-QKD with an untrusted source to MDI-QCC and give the rigorous security analysis of MDI-QCC with an untrusted source. What is more, in the security analysis we clearly provide a rigorous analytical method for parameters' estimation, which with simple modifications can be applied to not only MDI-QKD with an untrusted source but also arbitrary multi-party communication protocol with an untrusted source. The simulation results show that at reasonable distances the asymptotic key rates for the two cases (with trusted and untrusted sources) almost overlap, which indicates the feasibility of our protocol.

Key words: quantum cryptographic conferencing, measurement-device-independent, quantum key distribution, untrusted source

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

  • 03.67.Dd
03.67.Hk (Quantum communication)