IMPLEMENTAÇÃO DE UM SISTEMA DE CRIPTOGRAFIA DE VOZ BASEADO NO ALGORITMO RSA UTILIZANDO DSP

Abstract

This paper presents the implementation aspeech encryption system of in real time using the RSAalgorithm with the digital signal processor DSKTMS320C6711. The RSA algorithm offers high levels ofsecurity, because of his capabilities in discrete mathematics,especially prime numbers, and the algorithm of Euclidextended. Its usefulness in data security is crucial in thecurrent era of the Internet and telecommunicationsdevelopments. The Implementation on DSP is of greatimportance, because of de ability real time processing,VLIW technology which promotes various mathematicalcalculations and operations in a single cycle. For this system,first deployments were made in MATLAB, then weresimulated in C language and finally implemented in theDSP. Trials were carried out for different sizes of blocks ofdata from voice.

Index Terms - Encryption, RSA algorithm, Kit DSK, theory of numbers