Quantization Step Parity-based Steganography for MP3 Audio

Quantization Step Parity-based Steganography for MP3 Audio
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MP3 音频基于量化步长奇偶校验的隐写术

DOI:
10.3233/fi-2009-190
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发表时间:
2009
影响因子:
0.8
通讯作者:
王让定
王让定
中科院分区:
计算机科学4区
文献类型:
--
作者:
严迪群;张力光;王让定

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Petitcolas提出了一种名为MP3Stego的隐写技术,可以将秘密信息隐藏在MP3音频中。该技术因其高容量而闻名。然而,在极少数情况下,正常的音频编码过程将由于嵌入操作引起的无限循环问题而终止。此外,MP3Stego的统计不可检测性可以进一步提高。受MP3隐写术的启发,提出了一种新的MP3音频隐写方法。该算法利用量化步长的奇偶校验位而不是MP3Stego中块大小的奇偶校验位来嵌入秘密信息。与MP3隐写相比,该方法避免了无休止的循环,具有更好的不可见性和更高的安全性。
Petitcolas has proposed a steganographic technique called MP3Stego which can hide secret messages in a MP3 audio. This technique is well-known because of its high capacity. However, in rare cases, the normal audio encoding process will be terminated due to the endless loop problem caused by embedding operation. In addition, the statistical undetectability of MP3Stego can be further improved. Inspired by MP3Stego, a new steganographic method for MP3 audio is proposed in this paper. The parity bit of quantization step rather than the parity bit of block size in MP3Stego is employed to embed secret messages. Compared with MP3Stego, the proposed method can avoid the endless loop problem and achieve better imperceptibility and higher security.
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