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The Scientific World Journal
Volume 2015, Article ID 123080, 10 pages
http://dx.doi.org/10.1155/2015/123080
Research Article

An Experimental Realization of a Chaos-Based Secure Communication Using Arduino Microcontrollers

1Universidade Tecnológica Federal do Paraná, Avenida Alberto Carazzai 1640, 86300-000 Cornélio Procópio, PR, Brazil
2Control, Dynamics and Applications Group (CoDAlab), Departament de Matemàtica Aplicada III, Universitat Politécnica de Catalunya, d’Urgell 187, E08036 Barcelona, Spain

Received 7 May 2015; Revised 27 July 2015; Accepted 9 August 2015

Academic Editor: Chengqing Li

Copyright © 2015 Mauricio Zapateiro De la Hoz et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Security and secrecy are some of the important concerns in the communications world. In the last years, several encryption techniques have been proposed in order to improve the secrecy of the information transmitted. Chaos-based encryption techniques are being widely studied as part of the problem because of the highly unpredictable and random-look nature of the chaotic signals. In this paper we propose a digital-based communication system that uses the logistic map which is a mathematically simple model that is chaotic under certain conditions. The input message signal is modulated using a simple Delta modulator and encrypted using a logistic map. The key signal is also encrypted using the same logistic map with different initial conditions. In the receiver side, the binary-coded message is decrypted using the encrypted key signal that is sent through one of the communication channels. The proposed scheme is experimentally tested using Arduino shields which are simple yet powerful development kits that allows for the implementation of the communication system for testing purposes.