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Anti-compression high-capacity information hiding and extracting method

A technology of information hiding and extraction method, applied in the field of anti-compression large-capacity information hiding and extraction, and data communication, which can solve the problems of inability to resist compression, high bit error rate of encrypted data, and lack of robustness.

Active Publication Date: 2016-09-07
XIAN INSTITUE OF SPACE RADIO TECH
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  • Application Information

AI Technical Summary

Problems solved by technology

The lossy information hiding method, such as the LSB information hiding method, has a capacity of 1 / 8, but it cannot resist compression, that is to say, the bit error rate of the encrypted data is too high after lossy compression, and there is no robustness.

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Embodiment Construction

[0040] The basic ideas of the present invention are as follows: an anti-compression large-capacity information hiding and extraction method is proposed, which can realize large-capacity information hiding in data such as image data, and has anti-compression performance at the same time. Its characteristics are: the method hides the secret information in the data for transmission by preprocessing the carrier data and carrying out the carrier encoding of the secret information, without changing the high-order information bits of the carrier. Quality recovery of secret messages and carrier data. The present invention is proposed in order to meet the requirements of large user information hiding capacity, robustness, low hardware implementation complexity, and both image and non-image data, so that the hiding method has a hiding capacity of 1 / 8 or 1bpp, and has anti-compression Performance, breaking through the limitations of traditional large-capacity hiding methods without robus...

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Abstract

The invention provides an anti-compression high-capacity information hiding and extracting method, which can achieve high-capacity information hiding in data such as image data, and meanwhile has the anti-compression performance. The method is characterized in that secret information is hidden into the data for transmission by pre-treating carrier data and performing carrier coding on the secret information, without changing the high-order information bits of the carrier, even through certain lossy compression, the receiving end also can recover the secret information and carrier data with high quality. The method is provided for meeting the requirement that the user information hiding is high in capacity, robust and low in hardware implementation complexity and covers both image and non-image data, thus the hiding method has the hiding capacity of 1 / 8 or 1bpp, and has the anti-compression performance; the limitation that the traditional high-capacity hiding method is not robust is overcome, and the limitation that the traditional domain transformation method is high in implementation complexity is also overcome.

Description

technical field [0001] The invention relates to a data communication method, in particular to a compression-resistant large-capacity information hiding and extraction method, which belongs to the field of communication (such as data communication technology, etc.). Background technique [0002] Information hiding, also known as data hiding, is an important branch of information security. It uses human visual redundancy to embed secret information into the carrier, so as to achieve the purpose of secure transmission of secret information. [0003] Information hiding is divided into lossless information hiding or lossy information hiding. Lossy information hiding such as LSB and DCT information hiding methods, after information hiding, the carrier data has a certain loss, and the information has no loss or a certain loss. Lossless information hiding methods, such as the histogram-based information hiding method, the difference expansion information hiding method, etc., have no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04N19/467
CPCH04L63/0428H04N19/467
Inventor 周诠王鹏呼延烺魏佳圆刘娟妮
Owner XIAN INSTITUE OF SPACE RADIO TECH
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