Method for verifying built-in information hiding suitable for video
A technology of information hiding and verification methods, which is applied in the field of information encryption, can solve problems such as distortion drift, limited security and robustness, and low information hiding capacity, and achieve the effect of ensuring stability and preventing distortion drift
Active Publication Date: 2019-03-26
ZHENGZHOU NORMAL UNIV +1
View PDF7 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
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
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
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...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a method for hiding and verifying built-in information suitable for a video. The method comprises the following steps: performing hash calculation on to-be-embedded hidden information by hashing to obtain a corresponding verification hash value; embedding the verification hash value into a P frame of the video; performing entropy decoding on the video to obtain a DCT coefficient block in an I frame; selecting an embedded block of the hidden information; determining a drift direction of the current embedded block, and selecting a corresponding coupling coefficient; embedding the hidden information and performing entropy encoding; extracting the embedded hidden information from the I frame in a target embedded video and performing hash calculation; and comparing withthe verification hash value in the P frame. Aiming at the situations that in the current video information hiding technology, the information hiding capacity is low, and the security and the robustness are limited, the technical scheme of the present invention provides a method for hiding built-in information of the video and verifying the data integrity, which solves the distortion drift caused by the information embedded in the frame of the video and protects the integrity of the hidden information to some extent.
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
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(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