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Private information communication method and system based on jpeg image information hiding

A technology of private information and image information, which is applied in the field of private information communication and can solve problems such as difficulty in meeting application requirements.

Active Publication Date: 2016-10-12
FUJIAN NORCA TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It can be seen that the above methods are difficult to meet the application requirements of the present invention

Method used

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  • Private information communication method and system based on jpeg image information hiding
  • Private information communication method and system based on jpeg image information hiding
  • Private information communication method and system based on jpeg image information hiding

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Embodiment Construction

[0052] The technical solution of the present invention will be described in detail below in conjunction with the drawings.

[0053] Such as Figure 1-5 As shown, a private information communication method based on JPEG image information hiding of the present invention includes the following steps:

[0054] Step S1: Using the SM3 password hash algorithm for the password entered by the user, a binary string of a predetermined length is generated as a key for information hiding;

[0055] Step S2: Convert the information to be transmitted into binary data, and combine the key generated in step S1 to form the binary information to be hidden;

[0056] Step S3: Select the carrier image and convert it to the JPEG image format, after entropy decoding, obtain a series of 8×8 sub-block DCT coefficients quantized data sequence, and then select some of the low-frequency quantized coefficients in each sub-block The low bits of the are arranged in the original order to form the host modifiable vect...

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Abstract

The invention relates to a JPEG image information hiding based private information communication method and system. The system comprises a preprocessing module used for converting to-be-transmitted information into binary data, an encryption / decryption module used for generating an information hiding key by a password input by a user, an information hiding module used for embedding the converted binary data into a carrier JPEG image, a transmission module for transmitting and sharing the JPEG image embedded with the binary data information, and an information extraction module used for extracting the binary data in the image embedded with the binary data information, wherein the information hiding module comprises an entropy decoding module, an information embedding module and an entropy encryption module. The invention provides a complete multi-morphological information hiding core algorithm taking an image as a medium and a communication solution. The private information communication method and system have important theoretical and application values.

Description

Technical field [0001] The invention belongs to the field of privacy protection and information security communication, and specifically relates to a private information communication method and system based on JPEG image information hiding, which realizes functions such as privacy protection, confidential communication and picture sharing. Background technique [0002] With the widespread popularity of smart phones and the substantial increase in data transmission speed, we have entered the era of self-media Internet. Nowadays, smart phones have become an inseparable part of everyone's life. We are transmitting information every day, taking pictures and sharing every day, and pictures have become the most important source of information from the media. People like to use their mobile phones to take selfies or take pictures of life scenes, hide them privately or share them with friends through social networks (such as WeChat, QQ, Weibo or Email, etc.), and hope to confess their f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W12/02G06F21/16
CPCG06F21/16G06T1/00G06T1/0021G06T2201/0065
Inventor 陈明志郑绍华张瑞
Owner FUJIAN NORCA TECH
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