Transmissão de dados através de um radio canal utilizando um novo sistema de criptografia

Abstract

The evolution of new information technologies has facilitated extraordinarily the communication between companies and people all over the world, however, the information security constitutes a great concern in the communication environment, being this one of the most commented subjects currently in the means of the information technology. The radio channel is one of the communication environments, which despite bringing advantages, has some problems such as: - illegal access by a hacker or terrorist, - error-free transmission of information; - improvement of the transmission system characteristics. Throughout this work aspects of security in the transmission of information, its vulnerabilities were addressed. Type of attackers to information systems and forms of attacks. Ways of protecting information against different forms of attacks. In this work a new idea of transmission of digital information through Radio Channel using codes with irrational base was proposed. The use of this method allows using both the Position Numbering System and the Non-Position Numbering System in information transmission, considerably improving the basic characteristics and ensuring with high probability - Error-free information processing; - Error-free transmission of information; - Protection of information against illegal access. In order to elaborate this work, it was necessary to consult bibliography (and Internet pages) related to information security and protection, and to participate in some lectures.