Design And Implementation Of A Data Transmission System With Adaptive Network Traffic Characteristics

With the development of Internet technology and data communication technology,various types of network services are integrated into every aspect of People's Daily life,creating unprecedented convenience for people's communication.Every day,hundreds of millions of network users communicate with each other through public network environments,,browse the web,watch videos,and transmit file information.At the same time,huge amounts of data traffic are generated.However,in the public network environment,there are a certain number of malicious attackers and service providers who illegally audit and analyze the data traffic generated by users.The traditional data encryption technology cannot prevent the attacker from analyzing the traffic of users,which will lead to the disclosure of users' communication information,user behavior and other privacy issues.Due to the sensitivity of users' communication behavior,the disclosure will seriously affect the privacy security of users.In view of the user data flow in the process of public transport of illegal traffic analysis,this paper proposes a data transmission scheme with adaptive network traffic characteristics,combined with the actual data transmission scenario and user requirements,design and implement the data transmission system with adaptive network traffic characteristics,finally,the function of the system and tested performance.The specific work contents of this paper are as follows:Firstly,analyze the threat scenarios of network traffic analysis attacks faced by users 'communication traffic in the public network environment,and combine the security transmission problems that users' communication traffic needs to solve in this scenario,and proposes a data transmission scheme with adaptive network traffic characteristics,including multi-protocol dynamic transmission of data files,disguise data traffic generated by users as target network traffic,thereby obfuscating and analyzing illegal traffic existing in the public network environment,thereby protecting users' communication behavior information from being leaked.Secondly,according to the data transmission scheme with adaptive network traffic characteristics,combined with the actual communication scenarios of users and threats,design the data transmission system with adaptive network traffic characteristics.It consists of two parts,the client and the server,and is deployed according to the system.It can realize the client-server communication mode and the end-to-end communication mode.Then according to the overall system requirements,the system architecture is described in detail,including key module management,file preprocessing,disguised traffic generation,and file integration recovery.Thirdly,the main function of the data transmission system with adaptive network traffic characteristics,with dynamic cross-transmission of five protocols: FTP,SFTP,TFTP,SMTP,and HTTP.Functional tests were performed on the client and the server under the LAN environment,and the system performance was tested and analyzed,which proves that the system has practical application value and can protect the user's communication behavior from being leaked during the data file transmission process.