Software Development for the Security of TCP-Connections

Abstract

Nowadays, cybersecurity can be considered as an important aspect of the policy of any state in the conditions of the existence of a global information space, widespread communication and interaction through the Internet. For its adequate provision, they develop appropriate technologies of information protection, legislation at the state level, hardware and software, etc. The article focuses on the development of software tool for intercepting and analyzing outbound TCP-connections (the sniffer); there is a description of the stages of its development and the requirements for use; there is also a short manual for a user. Functional capabilities of the developed software tool allow to automate some of the system administrator’s functional duties. Among them, we should mention the interception, interpretation and storage of data transmitted over the network with 32-bit programs. Analysis of the received data packets will allow to analyze the suspicious activity of some programs or to identify individual network problems. The access to the software functions is implemented with the main, context menu and hot keys. The main language for the development was chosen the C++. To develop a user interface, a Qt library was used. The programming language Lua was used as a tool for writing and executing scripts.