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A built-in information hiding verification method suitable for video

An information hiding and verification method technology, applied in the field of information encryption, can solve the problems of limited security and robustness, distortion drift, low information hiding capacity, etc., to prevent distortion drift, ensure integrity, and ensure stability. Effect

Active Publication Date: 2021-04-20
ZHENGZHOU NORMAL UNIV +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

The technical solution of the present invention aims at the situation that the information hiding capacity is not high and the security and robustness are limited in the current video information hiding technology, and provides a built-in information hiding for H.264 video and can verify data integrity method, which can solve the technical problems of distortion drift caused by information embedding in the H.264 video frame and protect the integrity of secret information to a certain extent

Method used

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  • A built-in information hiding verification method suitable for video
  • A built-in information hiding verification method suitable for video
  • A built-in information hiding verification method suitable for video

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Embodiment Construction

[0045] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other. The present invention will be further described in detail below in combination with specific embodiments.

[0046] To perform SHA256 hash operation on the secret information to be embedded, first perform two-step data preprocessing of additional padding bits and additional length, so that the entire secret information meets the specified structure. Then the secret information is divided into N 51...

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Abstract

The invention discloses a built-in information hiding verification method suitable for video, which includes performing a hash operation on hidden information to be embedded through hashing, obtaining a corresponding verification hash value and embedding it into a P frame of the video; Entropy decoding, obtain the DCT coefficient block in the I frame, select the embedded block of the hidden information; judge the drift direction of the current embedded block, select the corresponding coupling coefficient; embed the hidden information and perform entropy coding; embed the I frame of the video from the target The hidden information embedded in is extracted and hashed, and compared with the verification hash value in the P frame. The technical solution of the present invention aims at the situation that the information hiding capacity is not high and the security and robustness are limited in the current video information hiding technology, and provides a method for carrying out built-in information hiding on the video and capable of verifying the integrity of the data, which can To a certain extent, it solves the distortion drift caused by information embedding in the video frame and protects the integrity of secret information.

Description

technical field [0001] The invention belongs to the field of information encryption, and in particular relates to a built-in information hiding verification method suitable for video. Background technique [0002] When a video with hidden information hidden is transmitted over the network, it may be tampered with by multiple intentional or unintentional attacks. Intentional attacks such as D / A, A / D conversion, re-sampling, re-encoding or re-encoding, low-pass filtering, cutting, shifting, transform coding, etc.; unintentional attacks such as equipment failure, network congestion, etc. Data tampering is very fatal to video information hiding. To achieve safe transmission of secret information, it is necessary to ensure that the received data has not been tampered with, which involves data integrity verification. Data verification refers to a verification value calculated on the original data by using a specified algorithm to ensure the integrity of the data. The receiver us...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/467H04N19/625H04L29/06H04L9/06
CPCH04L9/0643H04L63/0428H04N19/467H04N19/625
Inventor 刘云霞李汝佳王永浩
Owner ZHENGZHOU NORMAL UNIV
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