Unlock instant, AI-driven research and patent intelligence for your innovation.

High-capacity file encrypted steganography and extraction method based on JPEG images

A file encryption and extraction method technology, applied in the field of information hiding, can solve the problems of carrier image distortion, unable to meet the needs of high-capacity secret information embedding, reduce concealment, etc., achieve strong robustness, meet imperceptibility, and improve embedding The effect of capacity

Active Publication Date: 2016-10-12
SICHUAN CHANGHONG ELECTRIC CO LTD
View PDF3 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, the embedding space of DCT coefficients is limited, and when the data volume of the secret information becomes larger, it will lead to distortion of the carrier image, thereby reducing its concealment characteristics
Therefore, the existing steganographic methods based on JPEG images cannot meet the embedding requirements of high-capacity secret information.

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-capacity file encrypted steganography and extraction method based on JPEG images
  • High-capacity file encrypted steganography and extraction method based on JPEG images
  • High-capacity file encrypted steganography and extraction method based on JPEG images

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] In order to make the purpose, technical solution and advantages of the present invention clearer, the specific implementation manners of the present invention will be clearly and completely described below.

[0033] figure 1 and figure 2 It is a flow chart of the JPEG image-based file steganography method provided by Embodiment 1 of the present invention, the method includes a key steganography method and a ciphertext steganography method, wherein the key steganography method includes steps S11 to S16, combined with the attached figure 1 , the above-mentioned steps will be described respectively below.

[0034] Step S11: Select a carrier image.

[0035] In step S11, an image is randomly selected from the carrier image database as the carrier image of the file to be encrypted. In this embodiment, the images in the carrier image database are JPEG images.

[0036] Step S12: Read the segment information of the carrier image.

[0037] In step S12, segment information o...

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

PUM

No PUM Login to View More

Abstract

The invention relates to the technical field of information hiding, and provides a high-capacity file encrypted steganography and extraction method based on JPEG images in order to solve the problem that the existing steganography method based on JPEG images cannot meet the demand for high-capacity secret information embedding. The method comprises the steps of key steganography, cipher text steganography, key extraction and cipher text extraction. The technical scheme put forward by the invention makes full use of the redundancy of a JPEG image file structure, and can significantly improve the embedding capacity of carrier images. In addition, secret information is randomly encrypted with a key, so the algorithm is secure to a certain degree. Moreover, an intermediate-frequency coefficient is used as a means of key steganography, so the method meets the demand for imperceptibility and has strong robustness.

Description

technical field [0001] The invention belongs to the technical field of information hiding, in particular to a high-capacity file encryption steganography and extraction method based on JPEG images. Background technique [0002] At present, with the rapid development of computer technology and the widespread popularization of various smart terminal devices, more and more information about people's study, work and life are exposed to the Internet. In the big environment under the Internet, there are all kinds of insecure factors all the time. Once the private information is lost due to slight negligence of individuals, enterprises or the government, it will bring immeasurable losses to the losers. Then, using appropriate means to hide private information will greatly reduce the risk of loss caused by such loss, and accordingly, information hiding technology has emerged as the times require. [0003] Information hiding technology is an important part of information security, ...

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

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06T1/00
CPCG06T1/005G06T1/0092G06T2201/0203
Inventor 毛国庆
Owner SICHUAN CHANGHONG ELECTRIC CO LTD