Multimedia integrated steganography analysis method based on window hypothesis testing

A technology of hypothesis testing and steganalysis, applied in the field of information hiding, can solve problems such as long running time and inability to effectively control the false alarm rate of steganalysis conclusions, so as to reduce running time, reduce data volume, and reduce missed detection rate Effect

Active Publication Date: 2017-03-22
XIAMEN UNIV
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Problems solved by technology

[0010] The present invention aims to provide a multi-media comprehensive steganalysis method based on window-type hypothesis testing to solve the problem that the existing steganalysis method cannot effectively control the false alarm rate of the steganalysis conclusion and the running time is relatively long

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  • Multimedia integrated steganography analysis method based on window hypothesis testing
  • Multimedia integrated steganography analysis method based on window hypothesis testing
  • Multimedia integrated steganography analysis method based on window hypothesis testing

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Embodiment Construction

[0032] To further illustrate the various embodiments, the present invention is provided with accompanying drawings. These drawings are a part of the disclosure of the present invention, which are mainly used to illustrate the embodiments, and can be combined with related descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should understand other possible implementations and advantages of the present invention.

[0033] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments. The overall process framework of the present invention is as figure 1 As shown: S1. Prepare the original text set and hidden text set, and divide them into training set and verification set, which are the basis for subsequent processing; S2. By extracting features from the training set, train a predictor to provide classification basis for steganal...

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Abstract

The invention relates to a multimedia integrated steganography analysis method based on window hypothesis testing. The method comprises the steps of (S1) preparing an original text set and a hidden text set, and dividing a training set and a testing set, (S2) extracting characteristic of the training set, and training to obtain a predictor, (S3) placing the testing set into the predictor to obtain output, fitting a probability distribution model according to the output, and estimating the parameter of the model by using the output, (S41) sampling the testing set according to the sizes of different windows, (S42) obtaining the null hypothesis and alternative hypothesis of a hypothesis test according to the probability distribution model and parameter selected in the (S3), (S43) according to the specific false alarm rate and false negative rate of a user, determining the judgment condition of the hypothesis test with the combination of the sampling scale of the windows, and carrying out statistical inference and window hypothesis testing, and (S5) carrying out comprehensive analysis decision on the result of the window hypothesis test. According to the method, whether the sample comprises steganography information or not can be detected, the false alarm rate and false negative rate of integrated steganography analysis can be reduced, and the running speed of steganography analysis is improved.

Description

technical field [0001] The invention relates to a multi-media comprehensive steganalysis analysis method based on a window type hypothesis test, which belongs to the sub-field of information hiding technology in the field of information security technology. Background technique [0002] Steganography refers to the technology of embedding information in the carrier signal to achieve covert communication. Nowadays, with the rapid development of multimedia technology, it is very common to create, edit, store and transmit multimedia files, so steganography using multimedia as a carrier has been extensively studied. Steganography hides the fact of covert communication and is easy to deny. Even the most effective steganalysis method cannot fully confirm the existence of steganography. At present, there are hundreds of steganography tools suitable for mobile phones and computers, which are easy to obtain and use. If they are used by criminals to evade the supervision of relevant d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T1/00G10L19/018H04N1/32G06K9/62
CPCH04N1/32144G06T1/0021G10L19/018G06F18/214G06F18/24
Inventor 黄炜郭宏洲
Owner XIAMEN UNIV
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