Title :
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
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;
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
DOI :
10.1109/ARTCom.2009.112
