Carrier-free information hiding method for big data Chinese text

An information hiding and big data technology, applied in digital data protection, electronic digital data processing, text database indexing, etc., can solve problems such as limited space for hidden capacity improvement and difficulty in meeting actual needs.
CN111797409APending Publication Date: 2020-10-20CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
0 Cites 5 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
Publication Date
2020-10-20

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a carrier-free information hiding method for a big data Chinese text, and the method comprises: firstly carrying out preprocessing of the big data Chinese text, and mainly comprises word segmentation of the text, calculation of the word frequency and TF-IDF feature information of words after word segmentation, and LDA topic model clustering of the text; then, the sender segments the secret information, converts the secret information into keyword IDs through a word index table, and searches a text containing secret information keywords in the big data text; and, secondly, the searched text is used as an index label according to theme distribution of the corresponding text and TF-IDF characteristics of keywords in the corresponding text, meanwhile, a random number isintroduced to control the sequence of the secret information keywords, and finally, the random number and the index are used as labels together to be encrypted and sent to a receiver. Experiments show that the method improves the concealment and security of secret information while improving the concealment capacity.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a carrier-less information hiding method for large data Chinese texts. Background technique

[0002] Information hiding technology, as an important branch in the field of information security, mainly uses the redundancy of digital information by human sensory organs to hide one information in another information carrier, so that the hidden carrier information still shows original features. This information carrier can be various types of data, such as text, image, video or audio and so on. Although the external characteristics of the hidden carrier are still preserved, it still needs to change some information of the carrier, which makes it unable to effectively resist various steganographic detection tools such as replay attacks, OCR technology, and statistical analysis.

[0003] In view of the existing information hiding technology that needs to change the carrier information, scholars have proposed the concept of informati...

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