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

Image encryption method and system based on big data

A big data and image technology, applied in the field of image encryption method and system based on big data, can solve the problems of unreliable encryption effect and poor differential resistance performance, so as to increase the difficulty of decryption, improve reliability and complexity Effect

Pending Publication Date: 2021-12-17
JIANGSU VOCATIONAL COLLEGE OF BUSINESS
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods have the characteristics of poor differential resistance, and their encryption effect is not reliable.

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
  • Image encryption method and system based on big data
  • Image encryption method and system based on big data
  • Image encryption method and system based on big data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0059] The current encryption methods are all encrypted images obtained by performing certain operations on the basis of the original image itself. Once the decryption method is exposed, the information of the original image will also be fully exposed. For this reason, the security of this encryption method still depends on the confidentiality of the decryption method. However, in the case of network exposure, it is relatively easy to steal the decryption method or try to obtain the decryption method. Therefore, the current image encryption method has poor reliability.

[0060] To this end, embodiments of the present invention provide an image encryption method and system based on big data. By adding a key image, the encrypted ciphertext image has a double key (on the one hand, the key image, on the other hand is the key image). encryption process), which improves the reliability of encryption.

[0061] In a first aspect, an embodiment of the present invention provides an ima...

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 embodiment of the invention provides an image encryption method and system based on big data. The method comprises the steps of obtaining a to-be-encrypted image; selecting one to-be-selected image from the big database as a secret key image; mapping a to-be-encrypted image to a space where the secret key image is located to obtain a mapped image; fusing the mapping image and the secret key image to obtain a fused image; segmenting the fused image to obtain N image blocks; and carrying out pixel confusion on the fused image based on the N image blocks to obtain a ciphertext image. The obtained ciphertext image is not easy to crack, decryption not only depends on the characteristics of the original to-be-encrypted image and a specific method for carrying out pixel chaos, but also depends on the characteristics of the secret key image, so that the decryption difficulty is increased, and the encryption reliability is improved. The fused image contains the characteristics of the secret key image, and also contains the characteristics of the secret key image, so that the difficulty of decoding the text image is increased, and the reliability of encrypting the to-be-encrypted image is improved.

Description

technical field [0001] The present invention relates to the field of computer technology, and in particular, to an image encryption method and system based on big data. Background technique [0002] With the development of science and technology, people's daily life and work are more and more dependent on the network, and the amount of data transmitted by the network is increasing. There are many loopholes in the current network, and the data transmitted by users is easy to be lost or stolen. The information security problem of network transmission is an important technical problem facing everyone today. It is very difficult to solve the information security problem from the network level. For this reason, people often encrypt the data to be transmitted first, and then transmit the encrypted data packets. The receiver decrypts the data according to the preset method to ensure the security of data transmission. However, currently commonly used encryption methods are known, ...

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): H04N1/32H04N1/44G06T7/11G06T5/50G06F16/951G06F16/953
CPCH04N1/32272H04N1/4486G06T7/11G06T5/50G06F16/951G06F16/953G06T2207/20021G06T2207/20221
Inventor 高小虎
Owner JIANGSU VOCATIONAL COLLEGE OF BUSINESS