Audio steganography using bit modification

Author

Gopalan, Kartik

Author_Institution

Dept. of Eng., Purdue Univ. Calumet, Hammond, IN, USA

Volume

2

fYear

2003

fDate

6-10 April 2003

Abstract

A method of embedding a covert audio message in a cover utterance for secure communication is presented. The covert message is represented in a compressed form with possibly encryption and/or encoding for added security. One bit in each of the samples of a given cover utterance is altered in accordance with the data bits and a key. The same key is used to retrieve the embedded bits at the receiver. The results, based on cover signals from a clean TIMIT utterance and a noisy aircraft cockpit utterance, show that the technique meets several major criteria for successful covert communication.

Keywords

audio coding; cryptography; decoding; military communication; noise; audio steganography; bit modification; clean TIMIT utterance; cover signals; cover utterance; covert audio message embedding; covert battlefield information transmission; covert communication; covert message; data bits; encoding; encryption; key; noisy aircraft cockpit utterance; secure communication; Aircraft; Cryptography; Data security; Degradation; Dynamic range; Frequency; Humans; Noise robustness; Steganography; Visual system;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03). 2003 IEEE International Conference on

ISSN

1520-6149

Print_ISBN

0-7803-7663-3

Type

conf

DOI

10.1109/ICASSP.2003.1202390

Filename

1202390