JPEG image information hiding based private information communication method and system

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: 2016-03-23
FUJIAN NORCA TECH
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Problems solved by technology

It can be seen that the above methods are difficult to m

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  • JPEG image information hiding based private information communication method and system
  • JPEG image information hiding based private information communication method and system
  • JPEG image information hiding based private information communication method and system

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Embodiment Construction

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

[0053] Such as Figure 1-5 Shown, a kind of private information communication method based on JPEG image information hiding of the present invention comprises the following steps,

[0054] Step S1: For the password input by the user, generate a binary string of a predetermined length as a key for information hiding through the SM3 cryptographic hash algorithm;

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

[0056] Step S3: Select the carrier image, convert it into JPEG image format, and obtain a series of quantized data sequences of 8×8 sub-block DCT coefficients through entropy decoding, and then select some of the mid-low frequency quantization coefficients in each sub-block The lower bits of the host are arranged in ...

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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 in particular relates to a private information communication method and system based on JPEG image information hiding, which realize functions such as privacy protection, secret communication and picture sharing. Background technique [0002] With the widespread popularity of smartphones and the substantial increase in data transmission speeds, we have entered the age of the self-media Internet. Nowadays, smartphones have become an inseparable part of everyone's life. We transmit information every day, take pictures and share them every day. Pictures have become the most important source of information in self-media information. People like to take selfies or take pictures of life scenes with their mobile phones, store them privately or share them with friends through social networks (such as WeChat, QQ, Weibo or Email, etc.), and hope to leave a confes...

Claims

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Application Information

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IPC IPC(8): G06F21/16G06T1/00
CPCG06F21/16G06T1/00G06T1/0021G06T2201/0065
Inventor 陈明志郑绍华张瑞
Owner FUJIAN NORCA TECH
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