应用科学学报 ›› 2020, Vol. 38 ›› Issue (4): 507-519.doi: 10.3969/j.issn.0255-8297.2020.04.001

• 光纤通信技术 • 上一篇    下一篇

经典物理层高速密钥分发研究进展

高华1,2, 王安帮1,2, 王云才1,3,4   

  1. 1. 新型传感器与智能控制教育部重点实验室(太原理工大学), 太原 030024;
    2. 太原理工大学 物理与光电工程学院, 太原 030024;
    3. 广东工业大学 信息工程学院, 广州 510006;
    4. 广东省光子学信息技术重点实验室, 广州 510006
  • 收稿日期:2020-05-21 出版日期:2020-07-31 发布日期:2020-08-01
  • 通信作者: 王云才,教授,博导,研究方向为混沌产生与应用.E-mail:wangyc@gdut.edu.cn E-mail:wangyc@gdut.edu.cn
  • 基金资助:
    国家自然科学基金(No.61822509,No.61731014,No.61671316);广东省引进创新创业团队项目基金;山西省“1331”工程重点创新团队项目基金;山西省高等学校中青年拔尖创新人才计划基金;山西省优秀人才科技创新项目基金(No.201805D211027)资助

Progress in High-Speed Classical Physical Key Distribution Techniques

GAO Hua1,2, WANG Anbang1,2, WANG Yuncai1,3,4   

  1. 1. Key Laboratory of Advanced Transducers&Intelligent Control System, Ministry of Education(Taiyuan University of Technology), Taiyuan 030024, China;
    2. College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan 030024, China;
    3. School of Information Engineering, Guangdong University of Technology, Guangzhou 510006, China;
    4. Guangdong Provincial Key Laboratory of Photonics Information Technology, Guangzhou 510006, China
  • Received:2020-05-21 Online:2020-07-31 Published:2020-08-01

摘要: 信息加密传输是网络空间安全的核心问题,根据香农“一次一密”理论,安全加密要求随机密钥安全分发.随着光通信速率的不断提高,信息加密传输亟需高速密钥分发技术.近年来,研究者不断探索基于经典物理方法的密钥分发技术,以期实现与现有通信网络相兼容的高速密钥分发.目前,主要方法包括光纤激光器参数随机选择、物理不可克隆函数、光纤信道噪声和混沌激光同步等.该文介绍了上述4种方案的基本原理及主要研究进展,指出了混沌激光同步密钥分发方法最具高速率潜力,并分析了这个方案尚需解决的关键科学问题.

关键词: 密钥分发, 一次一密, 信息安全, 混沌激光, 信道噪声

Abstract: Information encryption transmission is a critical problem of cyberspace security. According to Shannon's “one-time-pad” theory, secure encryption requires the secret distribution of random keys. With the increase of optical communication rate, high-speed key distribution techniques are urgently needed for information encryption transmission. In recent years, researchers continue to explore the key distribution based on classical physical methods, expecting to achieve high-speed key distribution which is compatible with current communication networks. The main methods include random selection of fiber laser parameters, physical unclonable function, fiber channel noise, and chaotic laser synchronization. This paper introduces the basic principle and main research progress of these classical physical key distribution schemes. Among which, the key distribution based on laser chaos synchronization with high potential in high-speed distribution is emphasized, and its corresponding problems need to be solved are analyzed as well.

Key words: secret key distribution, one-time pad, information safety, chaotic laser, channel noise

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