Journal
COMPUTERS & SECURITY
Volume 31, Issue 5, Pages 704-716Publisher
ELSEVIER ADVANCED TECHNOLOGY
DOI: 10.1016/j.cose.2012.04.006
Keywords
Steganography; Window switching; MP3; Encoding parameters; Undetectability
Categories
Funding
- National Natural Science Foundation of China [61170137]
- Doctoral Foundation of Ministry of Education of China [20103305110002]
- Scientific Research Fund of Zhejiang Provincial Education Department [Y201119434]
- Zhejiang Scientific and Technical Key Innovation Team of New Generation Mobile Internet Client Software [2010R50009]
- Outstanding (Postgraduate) Dissertation Growth Foundation of Ningbo University [10Y20100002]
- Ningbo University Foundation [XYL10002, XK1087]
- K.C. Wong Magna Fund in Ningbo University
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MP3 audio is a promising carrier format for covert communication because of its popularization. In this paper, we propose an MP3 steganographic method by exploiting the rule of window switching during encoding. The method carries out embedding by establishing a mapping relationship between the secret bit and the encoding parameter, namely window type. The proposed algorithm is fully compliant with MP3 compression standard and the distortion caused by steganography can be controlled automatically by the distortion adjustment mechanism of the encoder. Experimental results demonstrate that the proposed method introduces insignificant perceptual distortion and is statistically undetectable for the attack of block size analysis. (c) 2012 Elsevier Ltd. All rights reserved.
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