Abstract
Adaptive steganography which avoids changing the sensitive area in carrier, can efectively improve the security of steganography. Firstly, the schemes of side information synchronization in adaptive steganography are summarized and analyzed. Secondly, using the freedom degree which is extented by the previous one-way texture functions, a new orderpreserving texture function as side information of adaptive steganography is constructed. Finally, by combining wet paper codes and the method of multi-layered embedding, ± 1 algorithm and ± 2 algorithm are proposed. The proposed scheme can efciently enhance the security of adaptive steganography while maintaining fast side information synchronization between communicators. Theoretical analysis and experimental results show the efciency of the proposed scheme.
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