一种用于敏感图像快速加密的图像注入技术仿真

摘要

In order to improve the sensitive image encryption speed,and ensure the secure transmission of the sensitive image, an image injection technology used for sensitive image fast encryption is put forward. The principle diagram of the sensitive image fast encryption is given. The structure of the image injection technology is introduced. The logic control layer can analyze the cur⁃rent network traffic situation by means of the receiving end feedback information received by the TCP layer. The adjustment of packaging size and injection duration of UDP data packets can make the UDP layer inject the encryption sensitive image pack⁃age safely and quickly. The control process of the network traffic is analyzed in detail. In simulation experiment,a sensitive image involving military was encrypted,and the analysis experiments of packet loss rate and injection image quality were per⁃formed successively. The analysis conclusion are as follows:the packet loss rate of this method is lower than that of the biorthog⁃onal transform method,and the image injection result got by this method has higher reliability;the pixel correlation coefficient and encryption time consumption of the method are better than those of the biorthogonal transform method;the gray histogram and original image gray histogram are basically the same,and the image injection quality is better.%为了提高敏感图像的加密速度，保证敏感图像的安全传输，提出一种用于敏感图像快速加密的图像注入技术。给出敏感图像快速加密的原理图，介绍图像注入技术的结构，逻辑控制层通过从TCP层接收到的接收端反馈信息对当前的网络流量情况进行分析，通过调整UDP数据包的打包大小与注入时间，使UDP层能够安全、快速地注入加密敏感图像包。详细分析了网络流量的控制过程。在进行仿真实验时，对一幅涉及军事的敏感图像进行加密，依次进行丢包率分析实验和注入图像质量分析实验。实验结果表明，该文方法丢包率低于双正交变换方法，采用该文方法进行图像注入得到的结果具有较高的可靠性；该文方法的像素相关系数和加密耗时均优于双正交变换法，灰度直方图和原图灰度直方图基本相同，注入图像质量更佳。