A steganography method for AAC audio based on escape sequences

摘要：

An information hiding method on escape sequences of Huffman coding which can embed a great deal of secret information into AAC files is proposed based on the research of AAC coding standard. The proposed algorithm first unpacks the cover AAC file to search for the escape sequences, and then modifies least significant bit (LSB) of the escape sequences with the approach of matrix encoding, to improve the embedding efficiency. This method is low in computational complexity without any changes of the length of AAC coding. Experimental results reveal that the proposed algorithm can achieve higher hidden data capacity for AAC audio at the bitrate of 128kbps or above, furthermore, it has good imperceptibility and can resist the steganalysis to some extent.

关键词： AAC steganography escape sequences matrix encoding

作者: Yujie Wang Li Guo Yifang Wei Cuiping Wang

作者单位: Department of Electronic Science and Technology University of Science and Technology of China, Hefei, China

会议类型: 国际会议

会议名称: 2010年IEEE多媒体信息网络与安全国际会议

会议地点: 南京

会议语种:英文

页码: 841-845

在线出版日期: 2010-11-01（万方平台首次上网日期，不代表论文的发表时间）