网络隐蔽通道构建关键技术研究综述  

A Survey of Key Technologies for Constructing Network Covert Channel

作　　者：田婧 段梦军 汪明达 魏嘉男 何川 张翔 TIAN Jing;DUAN Mengjun;WANG Mingda;WEI Jianan;HE Chuan;ZHANG Xiang(No.30 Institute of CETC,Chengdu Sichuan 610041,China)

机构地区：[1]中国电子科技集团公司第三十研究所,四川成都610041

出　　处：《通信技术》2024年第8期757-768,共12页Communications Technology

基　　金：国家重点研发计划(2022YFB3105000)。

摘　　要：网络隐蔽通道是指在网络环境下用于传输秘密信息的通道。传统网络隐蔽通道的构建主要基于信息内容隐写技术,而目前该领域的研究正逐渐转向通过隐蔽网络通信架构完成隐蔽传输。梳理了当前网络隐蔽通道构建研究领域的主流技术,总结了各网络层次隐蔽通道的构建技术,介绍了新型网络隐蔽通道,包括流媒体、区块链和IPv6,填补了现有工作的空白,为随后在这些新网络环境中设计隐蔽通道提供了研究思路。最后,提出了隐蔽通道构建面临的主要挑战,一是封锁技术降低了通道的可用性,二是使用机器学习和深度学习技术使得隐蔽通道更易被攻击,并指出了技术上的解决方向。A network covert channel refers to an information channel in which the messages are covertly transmitted under the network environment.Previous construction schemes of network covert channel are based on information steganography.Currently,there are some covert channels constructed by changing the transmission network architecture.This paper reviews the current mainstream techniques in the field of network covert channel construction,summarizes the covert channel construction techniques at each network level,and introduces new types of network covert channels,including streaming,blockchain,and IPv6,which fill the gaps in the existing work and provide research ideas for the subsequent design of covert channels in these new network environments.Finally,the paper presents the main challenges faced by the construction of covert channels:first,blocking techniques reduce the availability of the channels,and second,the use of machine learning and deep learning makes covert channels more vulnerable to attacks,and points out the technical directions to solve them.

关 键 词：网络隐蔽通道 信息内容隐写技术 新型网络隐蔽通道 隐蔽通道构建 

分 类 号：TP393.0[自动化与计算机技术—计算机应用技术]