【摘要】 基于HTTP协议参数插入的信息隐藏算法可以将待隐藏的信息嵌入到目前Internet上使用最为广泛的协议数据包中,逃避防火墙等网络安全工具拦截和窜改。经过试验总结出了,为了增强通信的隐秘性,算法设计需要考虑的一些问题。提出了一种多维随机插入算法,增加了通信的隐秘性。为了进一步增加隐秘性和可靠性,待隐藏信息在隐藏之前进行了加密和数字摘要计算。同时针对嵌入算法多维随机性,计算该隐蔽信道的带宽模型,并在试验中进行了验证。更多还原

【Abstract】 Communication hiding algorithm based on HTTP protocol parameter insertion can embed the hiding information into the HTTP packets,which is the most widely used in the Internet.The target of algorithm is protecting the covert communication information from firewall’s interception and modification.The algorithm design baseline is summarized to enhance the concealment degree in communication.A multi-dimension random parameter insertion algorithm is proposed in the paper to enhance the concealment of communication.Additional,to enhance the concealment and stability in communication,the information is encrypted and the digital digest is compute before hiding.The bandwidth theory model is proposed based on multi-dimension randomicity have embed algorithm.The algorithm is verified in the experiments.更多还原