AL-Lisaniyyat
Volume 22, Numéro 2, Pages 49-56
2016-05-30
Encryption Of Speech Signal With Multiple Secret Keys
Authors : Slimani Dalila . Merazka Fatiha .
Abstract
In this paper, we proposed an encryption system for speech signals based on circular shifts in row and column. This cryptosystem uses three secret keys. The original key is generated, randomly, using a pseudo noise sequence generator, and the two other keys are obtained by using the main key. The encryption system also uses Discrete Cosine Transform (DCT) or the Discrete Sine Transform (DST) to remove the signal intelligibility. Moreover, the performance of the proposed algorithm is also estimated by correlation coefficient quantity.
Keywords
Speech signal; Encryption; Decryption; Circular shifts; DCT; DST
Les articles similaires
Bekadja Mohamed-amine
.
Mansour Belkacem
.
Ouldjeriouat Hafida
.
Entasoltan Badra
.
Osmani Soufi
.
Amani Kamila
.
Bouchama Samira
.
Charef Leila
.
Brahimi Mohamed
.
Arabi Abdessamed
.
Bouhass Rachid Amar
.
Yafour Nabil
.
pages 747-754.
