Speech encryption based on wavelet transformation and chaotic map
Joint Authors
Mahdi, Sundus I.
Abd al-Wahhab, Halah Bahjat
Source
Engineering and Technology Journal
Issue
Vol. 34, Issue 5B (31 May. 2016), pp.721-729, 9 p.
Publisher
Publication Date
2016-05-31
Country of Publication
Iraq
No. of Pages
9
Main Subjects
Information Technology and Computer Science
Abstract EN
In this paper a new algorithm is presented for speech encryption.
It includes dividing the speech signal into overlapped blocks then shuffling those blocks in the time domain.
A second permutation is done for the coefficients of the block which generated from wavelet transform by using chaotic key based on Hénon map, and partially encrypting the shuffled online speech signal in a transform domain.
The security for the proposed system will depend on different parameters, including secret block sizes, the amount for overlapping along the x-axes and y-axes, permutation key and dynamic encrypted key.
By having a new level of security the eavesdropper has to choose the amount of overlapping correctly.
Many online speech signal tests demonstrate the validity of the proposed algorithm.
The results show that it provides secure approach to real-time speech encryption and at the same time gives high intelligibility for the recovered speech.
American Psychological Association (APA)
Abd al-Wahhab, Halah Bahjat& Mahdi, Sundus I.. 2016. Speech encryption based on wavelet transformation and chaotic map. Engineering and Technology Journal،Vol. 34, no. 5B, pp.721-729.
https://search.emarefa.net/detail/BIM-783778
Modern Language Association (MLA)
Abd al-Wahhab, Halah Bahjat& Mahdi, Sundus I.. Speech encryption based on wavelet transformation and chaotic map. Engineering and Technology Journal Vol. 34, no. 5B (2016), pp.721-729.
https://search.emarefa.net/detail/BIM-783778
American Medical Association (AMA)
Abd al-Wahhab, Halah Bahjat& Mahdi, Sundus I.. Speech encryption based on wavelet transformation and chaotic map. Engineering and Technology Journal. 2016. Vol. 34, no. 5B, pp.721-729.
https://search.emarefa.net/detail/BIM-783778
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 729
Record ID
BIM-783778