Fast Fourier Transforms and Quadratic Forms for Digital Audio Watermarking

Author

Sekhar, A. Chandra ; Suneetha, Ch ; NagaLakshmi, G. ; RaviKumar, B.

Author_Institution

Dept. of Basic Sci. & Humanities( Eng. Math.), GITAM Univ., Visakhapatnam, India

fYear

2009

fDate

27-28 Oct. 2009

Firstpage

449

Lastpage

452

Abstract

In this paper a new technique of encryption for embedding secret information in the frequency domains of a cover audio signal is described. A novel method is presented for inaudibly hiding information in an audio signal. The method uses quadratic form as key matrix. The data is first encrypted using the key matrix. The secure data is further embedded in the audio signal in frequency domain using fast Fourier transforms and the results have been analyzed. This consists of data encryption at two levels and the cipher text so obtained becomes quite impossible to break or to interrupt.

Keywords

audio coding; cryptography; fast Fourier transforms; frequency-domain analysis; watermarking; audio signal; cipher text; data encryption; digital audio watermarking; fast Fourier transform; frequency domain; key matrix; quadratic forms; secret information; secure data; Communications technology; Cryptography; Embedded computing; Fast Fourier transforms; Frequency domain analysis; Mathematics; Phase change materials; Signal analysis; Streaming media; Watermarking; Quadratic forms; audio watermarking; cryptography; fast Fourier transform; key matrix;

fLanguage

English

Publisher

ieee

Conference_Titel

Advances in Recent Technologies in Communication and Computing, 2009. ARTCom '09. International Conference on

Conference_Location

Kottayam, Kerala

Print_ISBN

978-1-4244-5104-3

Electronic_ISBN

978-0-7695-3845-7

Type

conf

DOI

10.1109/ARTCom.2009.112

Filename

5329329