基于隐蔽通信的访问控制增强技术综述

A survey on covert communication-based access control enhancement technology

网络访问控制模型对于安全防范和保护具有重要意义。现有的网络访问控制模型大多是通过加密实现的,具有隐蔽性和可控性,容易被发现和攻击。基于隐写标签的隐蔽通信技术主要检测网络数据包是否包含隐写头部标签,并根据访问控制规则确定数据包的流向,有效控制主体对客体的访问。此外,详细介绍了几种方法下的访问控制规则,并描述了针对各种类型的隐蔽通道的相应检测方法。最后分析了区块链隐蔽通信构建技术及其发展趋势,旨在为相关研究提供一定参考价值。

The network access control model is important for security prevention and protection.Most of the existing network access control models are implemented through encryption,which has defects in concealment and controllability,and is easy to detect and attack.The covert communication technology based on steganographic labels mainly detects whether network packets contain stegantic headers,and determines the flow direction of packets according to access control rules,to effectively control the subject’s access to objects.In addition,this paper introduces the access control rules under several access control methods in detail,and describes the corresponding detection methods for various types of covert channels.Finally,this paper analyzes the development trend of blockchain covert communication construction technology and its detection methods,aiming to provide some significant value for related research.