Hidden information embedding and extracting method based on OOXML document

A technology of hidden information and extraction method, applied in the field of hidden information embedding and extraction based on OOXML documents, to achieve the effects of convenient operation, good concealment and easy writing

Active Publication Date: 2022-07-12
HEFEI HIGH DIMENSIONAL DATA TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are other steganographic algorithms like this, these steganographic algorithms are mostly for pictures or videos, for documents, there are few mature steganographic algorithms, which can easily hide information in documents

Method used

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  • Hidden information embedding and extracting method based on OOXML document
  • Hidden information embedding and extracting method based on OOXML document
  • Hidden information embedding and extracting method based on OOXML document

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Embodiment Construction

[0017] Combine below Figure 1 to Figure 3 , the present invention is described in further detail.

[0018] OOXML is a technical specification developed by Microsoft for Office 2007 products. It has now become an international document format standard, compatible with the former international standard open document format and the Chinese document standard "Biaowentong" (foreign language abbreviation: UOF); it became an international document format standard in December 2006. ECMA standard. Due to its many advantages, it has been widely used, and the documents with the suffixes of docx, xlsx, and pptx that we commonly use belong to OOXML documents.

[0019] see figure 1 The invention discloses a method for embedding hidden information based on an OOXML document, comprising the following steps: parsing the OOXML document into a file in xml format; searching for an xml file corresponding to a specified component; if the xml file corresponding to the specified component is searc...

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Abstract

The invention particularly relates to a hidden information embedding and extracting method based on an OOXML document. The embedding method comprises the following steps that the OOXML document is analyzed into a file in an xml format; searching an xml file corresponding to the specified component; if the xml file corresponding to the specified component is searched, to-be-embedded hidden information is written into the title attribute value of the specified component; and if the xml file corresponding to the specified component is not searched, creating a new specified component, writing hidden information to be embedded into the title attribute value of the new specified component, and hiding the new specified component. According to the method, the specified component in the OOXML document is analyzed, then the title attribute value of the specified component is replaced with the hidden information to be embedded, the title attribute value of the specified component is only used for distinguishing different components, the modification cannot be found by a person who looks up the document, good concealment is achieved, and the purpose of hiding the information is achieved.

Description

technical field [0001] The invention relates to the technical field of information hiding, in particular to a method for embedding and extracting hidden information based on an OOXML document. Background technique [0002] Steganography is the art and science of information hiding, the art and science of not letting anyone other than the intended recipient know about the delivery of information (rather than just the content of the information). Steganography in English, "Steganography", comes from Johannes Tritermius's book Steganographia, which seems to be about black magic, but is actually about cryptography and steganography. The title of the book comes from the Greek, meaning "hidden writing". [0003] To hide plaintext information, there are generally two ways to achieve it. The first is to encrypt the plaintext information to convert the plaintext information into other unreadable information. The second is steganography, which is to embed the plaintext information to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/60
CPCG06F21/60G06F21/1066
Inventor 田辉鲁国峰郭玉刚张志翔
Owner HEFEI HIGH DIMENSIONAL DATA TECH CO LTD
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