Encryption of speech signal with multiple secret keys | Zendy

Dalila Slimani | Zendy; Fatiha Merazka | Zendy

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Encryption of speech signal with multiple secret keys

Author(s) -

Dalila Slimani,

Fatiha Merazka

Publication year - 2018

Publication title -

procedia computer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.334

H-Index - 76

ISSN - 1877-0509

DOI - 10.1016/j.procs.2018.03.011

Subject(s) - computer science , cryptosystem , encryption , discrete cosine transform , algorithm , theoretical computer science , intelligibility (philosophy) , cryptography , speech recognition , computer security , artificial intelligence , image (mathematics) , philosophy , epistemology

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.

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