Speech Scrambling Using Multi-Stage Permutation with Filter Output | ||
| Iraqi Journal of Information Technology | ||
| Article 1, Volume 6, Issue 2, April 2014, Pages 90-101 | ||
| Author | ||
| Ghassan M. Hassan | ||
| Abstract | ||
| The development of modern communications lead to discover a cipher systems to prevent the unauthorized listeners to steals the data (including speech), and became an important requirement. One of these systems is Speech Scrambler, which it applied to get a secured speech signal using for transmission. In this paper, we proposed speech scrambler algorithm based on shift register and permutation approach to scramble clear speech into unintelligible signal in order to avoid eavesdropping. The MATLAB software was used to simulate a proposed speech scrambler algorithm, which reduced the residual intelligibility. The experimental results demonstrate the high secure communication between two parts using proposed algorithm. | ||
| Keywords | ||
| Scramble; scramble; sampling; permutation | ||
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