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Information hiding method taking text information as carrier

A text information and information hiding technology, applied in the field of information hiding, to achieve the effect of large hiding capacity, strong transparency and strong security

Inactive Publication Date: 2010-02-10
张浩
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

This method can only hide information without changing the semantics of the text

Method used

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  • Information hiding method taking text information as carrier
  • Information hiding method taking text information as carrier
  • Information hiding method taking text information as carrier

Examples

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specific Embodiment approach

[0029] Convert all possible 2 of the ANSI encoding standard 16 A code is output to a file and displayed in various commonly used text software; from it, the intersection of invisible character codes in different text software is filtered out; an invisible character code in a text software has the same code in other text software Invisible display characteristics, so the operability is strong; in addition, after converting the invisible character codes of the ANSI encoding standard into Unicode encoding format, they still have the same invisible display characteristics; the embodiment of the present invention takes the ANSI encoding standard as an example To illustrate; in the embodiment of the invention, 1024 invisible character codes are screened from ANSI codes, and a serial number is assigned to each code to form a reserved code set; as figure 2 As shown, in the set of reserved codes (201), all the reserved codes are irregular, and when the set of reserved codes is establi...

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Abstract

The invention discloses an information hiding method taking text information as a carrier, which is used for providing a hiding channel to secret information in the process of data transmission. The method comprises the following steps: self-defining a reserved code set according to a character coding standard characteristic; self-defining an L scale code according to a base number L of the reserved code set; self-defining a bijective function f of the L scale code to the reserved code set and a reverse function f<-1> thereof; self-defining a method of embedding reserved code character stringsin text information; embedding the secret information to a carrier of the text information and obtaining a secret object; and extracting the secret information from the secret object. The informationhiding technology takes the text information as the carrier and has strong versatility, large hiding capacity, good transparence and strong safety.

Description

technical field [0001] The invention belongs to the technical field of electronic computer software and relates to information hiding technology, in particular to a method suitable for information hiding in text information. Background technique [0002] Information hiding is to hide useful information in another carrier information to realize covert channel. Depending on the carrier, information can be hidden in text, image, audio and video files. Images, audio and video contain a lot of redundant space, and can combine the characteristics of human vision and hearing, and can hide a lot of information in the carrier without being discovered. Common algorithms such as: spatial domain algorithm, frequency domain algorithm, compressed domain algorithm, physiological model algorithm, statistical algorithm, etc. The secret information can also be used as a parameter to control the generation of a specific carrier. [0003] Using text as a carrier is to achieve information emb...

Claims

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Application Information

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IPC IPC(8): G06F17/22G06F21/24
Inventor 张浩杨晶菁
Owner 张浩
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