Volume 1, Issue 2, October 2016, Page: 16-21
Digital Chaotic Scrambling of Voice Based on Duffing Map
Amina Mahdi, Electrical Engineering Department, College of Engineering, University of Babylon, Babylon, Iraq
Ameer K. Jawad, Computer Engineering Department, Islamic University College, Najaf -Iraq
Saad S. Hreshee, Electrical Engineering Department, College of Engineering, University of Babylon, Babylon, Iraq
Received: Jun. 15, 2016;       Accepted: Jun. 18, 2016;       Published: Aug. 26, 2016
DOI: 10.11648/j.ijics.20160102.11      View  3762      Downloads  129
Abstract
With the significant development in communication systems especially in the public channels through which our information travels, there are more increasing in the channels problems. The information security is the important one that should be enhanced. This paper presents a chaos-based speech scrambling system. Chaotic maps have been successfully used for large-scale data encryption such as image, audio and video data, due to their good properties such as pseudo-randomness, sensitivity to changes in initial conditions and system parameters and a periodicity. In this paper a security model based on chaotic system has been designed to be used to encrypt voice signal, chaotic duffing map used for digital Scrambling, each samples of the speech are divided into 8 bits. The simulation results show that the Cpestral Distance Measure (CD) in the proposed system is increased by (4.559) by comparing with the time domain scrambling which is about four times that gives from the analog scrambling. In addition, dlpc increased to (4.428) as comparing with time domain. The key space in this proposed is 11.8336*1064×range of parameters.
Keywords
Speech, Secure Communication, Scrambling, Chaos, Duffing Map
To cite this article
Amina Mahdi, Ameer K. Jawad, Saad S. Hreshee, Digital Chaotic Scrambling of Voice Based on Duffing Map, International Journal of Information and Communication Sciences. Vol. 1, No. 2, 2016, pp. 16-21. doi: 10.11648/j.ijics.20160102.11
Copyright
Copyright © 2016 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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