Network covert channel has been widely used for network attack.
网络隐蔽通道技术是一种被广泛应用的网络攻击技术。
Recently a popular covert communication application is to hide information in still images and transmits them by network.
将秘密信息隐藏在图像中通过网络传输是当前一种十分流行的隐蔽通信手段。
For improving the capacity of covert channel in complex network situation, multi-state network covert timing channel was proposed.
为在较复杂网络状况下，有效提高隐蔽信道的容量，提出了多进制网络时间隐蔽信道的设计。
As a highly dangerous and covert remote control tool, trojan horse is commonly used techniques on network intrusion.
木马作为一种危害性大、隐蔽性高的远程控制工具，是目前比较常用的网络入侵技术。
Illegal communications by covert channel in network become an important way to threaten the network security.
网络数据流中利用隐蔽通道来进行非法通信已逐渐成为威胁网络信息安全的一种重要手段。
The results of simulation show that the proposed multi-state network covert timing channels with higher channel capacity and all have their own characteristics and the practical value.
仿真实例结果表明，提出的三种多进制网络时间隐蔽信道具有较高的信道容量，各有特点和实用价值。
Detail design and code framework are given, tests are done to validate the network covert channel.
该文给出详细方案设计和代码框架，通过测试验证该隐蔽通道的有效性。
Detail design and code framework are given, tests are done to validate the network covert channel.
该文给出详细方案设计和代码框架，通过测试验证该隐蔽通道的有效性。
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