AN ORTHOGONAL TRANSFORM BASED NOVEL METHOD FOR FUTURE REDUCTION OF RESIDUAL INTELLIGIBILITY IN ENCRYPTED SPEECH SIGNAL

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TABATABA VAKILI V.; DAROUGHEH K.

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Journal: INTERNATIONAL JOURNAL OF INDUSTRIAL ENGINEERING AND PRODUCTION MANAGEMENT (IJIE) (INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE) (PERSIAN) Year:2000 | Volume:11 | Issue:4 Page(s): 51-63

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Title

AN ORTHOGONAL TRANSFORM BASED NOVEL METHOD FOR FUTURE REDUCTION OF RESIDUAL INTELLIGIBILITY IN ENCRYPTED SPEECH SIGNAL

Author(s)

TABATABA VAKILI V. | DAROUGHEH K. | Issue Writer Certificate

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Abstract

Secure Communication is as old as Human civilization. Ciphers have been used in times for war and peace as well as in commerce and politics. In recent years the growing rate of information value has enormously increased the importance of its security and safety. Today encryption is considered as a branch of telecommunication science rather than a mere art. Speech security can be assumed a subject in the speech signal processing field. In this paper those methods have been received attention which are able to make information content of speech signal unintelligible for unauthorized use.Structure of the cited methods can basically be summarized as follows. In the first step the time domain samples of speech signal are transferred to a specific transformation domain and afterward the transformation coefficients are subject to a special permutation. Finally the encrypted speech signal in time domain will be obtained using the inverse transformation. It is obvious that the main difference between these methods is created by the type of exploited transformation. In this study a variety of transformation which have wide application in signal processing field have been investigated and their ability in encryption of speech signal under channel restrictions have been compared. Finally a modified trans formation based encryption scheme has been presented which effectively reduces the residual intelligibility of encrypted speech signal.

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APA: Copy

TABATABA VAKILI, V., & DAROUGHEH, K.. (2000). AN ORTHOGONAL TRANSFORM BASED NOVEL METHOD FOR FUTURE REDUCTION OF RESIDUAL INTELLIGIBILITY IN ENCRYPTED SPEECH SIGNAL. INTERNATIONAL JOURNAL OF INDUSTRIAL ENGINEERING AND PRODUCTION MANAGEMENT (IJIE) (INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE) (PERSIAN), 11(4), 51-63. SID. https://sid.ir/paper/65380/en

Vancouver: Copy

TABATABA VAKILI V., DAROUGHEH K.. AN ORTHOGONAL TRANSFORM BASED NOVEL METHOD FOR FUTURE REDUCTION OF RESIDUAL INTELLIGIBILITY IN ENCRYPTED SPEECH SIGNAL. INTERNATIONAL JOURNAL OF INDUSTRIAL ENGINEERING AND PRODUCTION MANAGEMENT (IJIE) (INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE) (PERSIAN)[Internet]. 2000;11(4):51-63. Available from: https://sid.ir/paper/65380/en

IEEE: Copy

V. TABATABA VAKILI, and K. DAROUGHEH, “AN ORTHOGONAL TRANSFORM BASED NOVEL METHOD FOR FUTURE REDUCTION OF RESIDUAL INTELLIGIBILITY IN ENCRYPTED SPEECH SIGNAL,” INTERNATIONAL JOURNAL OF INDUSTRIAL ENGINEERING AND PRODUCTION MANAGEMENT (IJIE) (INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE) (PERSIAN), vol. 11, no. 4, pp. 51–63, 2000, [Online]. Available: https://sid.ir/paper/65380/en

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