Page 221 - 应用声学2019年第4期

第 38 卷 第 4 期 Vol. 38, No. 4
2019 年 7 月 Journal of Applied Acoustics July, 2019

⋄ 李启虎院士八十华诞学术论文 ⋄

隐蔽通信中基于水声信道的密钥生成技术 ∗

刘俊凯 1,2 董阳泽 1† 张刚强 1

(1 水声对抗技术重点实验室 上海 201108)
(2 浙江大学 杭州 316021)

摘要 水声传感器网络实现了高度智能化、自主性强、分布式、全天候的水下信息采集、传输、处理及融合，是
水下目标的监测、定位、跟踪与分类等应用的最佳选择之一。针对隐蔽传输中的加密，提出了基于水声信道响
应特征产生密钥的方法，通过利用水声信道的短时相关性，通信双方实时地产生加密密钥，以保证信息的保密
性能。通过将信息隐藏技术和密钥生成技术相结合，确保水声信息的隐蔽传输。仿真与试验结果表明，基于提
出的密钥生成方法能够生成匹配密钥，为水声隐蔽通信提供加密支持。
关键词 水声信道，密钥，信息隐藏，信息加密
中图法分类号: TN929.3 文献标识码: A 文章编号: 1000-310X(2019)04-0681-07
DOI: 10.11684/j.issn.1000-310X.2019.04.027

Key generation technology based on underwater acoustic channel estimation
in covert communication

LIU Junkai 1,2 DONG Yangze 1 ZHANG Gangqiang 1

(1 National Key Laboratory of Science and Technology on Underwater Acoustic Antagonizing, Shanghai 201108, China)
(2 Zhejiang University, Hangzhou 316021, China)

Abstract Take advantage of underwater acoustic sensor network (UWSN), intelligent, autonomous, dis-
tributed, all underwater information collection, transmission, processing and fusion can be performed. Thus
UWSN becomes one of the best choices for underwater applications such as target monitoring, positioning,
tracking and classification. Aiming at the encryption in covert communication, a method of generating key
based on the response characteristics of underwater acoustic channel is proposed. By utilizing the short-term
correlation of underwater acoustic channel, both the transmitter and receiver can generate encryption keys in
real time to ensure the confidentiality of information. By combining information hiding technology with key
generation technology, the covert transmission of underwater acoustic information can be ensured. Simulation
and experimental results show that the proposed key generation method can generate matched keys as well as
provide encryption support for underwater acoustic covert communication.
Key words Underwater acoustic channel, Secret key, Information hiding, Information encryption

2019-02-14 收稿; 2019-03-08 定稿
浙江省海洋观测 -成像试验区重点实验室资助
∗
作者简介: 刘俊凯 (1990- ), 男, 河北保定人, 硕士, 工程师, 研究方向: 水声对抗。
† 通讯作者 E-mail: dongyangze@139.com