Design And Implementation Of Real-time Video Steganography Communication System

With the rapid development of network communications and the advent of the 5G era,people can conduct work meetings and video exchanges anytime and anywhere.While network communication is becoming more and more convenient,the leakage of important information is becoming more and more frequent.The leakage of important information has an irreversible impact on people's lives,company property and even national security.Therefore,network communication security nowadays has become an urgent problem to be solved.In recent years,network communication has brought convenience to people while also causing major hidden dangers in information security.The leakage of important information has an irreversible impact on people's lives,company property and even national security.Therefore,network communication security nowadays has become an urgent problem to be solved.Information hiding is an important technical approach to ensure network communication security,and it is also an effective way to protect private information.However,the current information hiding still has the following problems:1.The application of information hiding technology in the actual communication process is not yet mature;2.The existing research in the field of information hiding focuses on watermarking technology,which is mainly used in digital copyright protection and other fields;3.When the existing information hiding algorithm is used for secret communication,the carrier hiding capacity is small.Therefore,the design of non-aware information steganography communication system,which is safe and efficient,is of great significance.Based on information hiding technology and H.264 video encoding and decoding process,this paper first proposes a video steganography communication algorithm for adaptive video content in view of the inadequacy of existing video steganography algorithms.Combined with the current network instant communication background and taking video steganography communication algorithm as the theoretical basis,a non-perceptual video stealth communication system that can interact across Windows system platform and Android system platform is designed and implemented.The research content of this article mainly includes the following aspects:1.In order to solve the limitation of screening hidden areas by the existing video stealth algorithms,a video content complexity analysis method is proposed;this method comprehensively analyzes the video image texture estimation and motion vector to filter out the video image area more suitable for embedded;combining traditional encryption technology and information hiding technology,used the key distribution mechanism to preprocess the secret information,proposed a more secure video steganography communication algorithm.2.In order to solve the problem that the existing communication software is easy to leak the important data of the user,according to the existing network communication conditions,designed the overall architecture and the hidden communication model of the real-time video hidden communication system;combined with the system application background,the system server and client are divided into modules,and designed the system module.3.After implementing the normal communication function of the system,according to the video steganography communication algorithm and H.264 video codec standard,designed and implemented the real-time video steganography communication function,the recorded video steganography communication function and the local file protection function.4.Test the system performance,and test results show that the system uses the video stream in the traditional channel to build a perfect secret channel;this system provides the non-perception function and makes the third party difficult to perceive,distinguish and decrypt,providing users a secure communication platform.