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Image encryption storage method and system based on big data

An encrypted storage and big data technology, applied in the field of image processing, can solve the problems that cannot meet the needs of subjective and objective evaluation of the effect of the encryption scheme, and achieve the effect of good encryption effect, high encryption efficiency, and strong security

Pending Publication Date: 2021-11-30
干怡树
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing technology has certain limitations, and cannot meet the needs of image encryption researchers for subjective and objective evaluation of the encryption scheme.

Method used

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

Examples

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Embodiment Construction

[0072] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

[0073] It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic ideas of the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the compo...

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Abstract

The invention provides an image encryption storage method and system based on big data, and the method comprises the steps: firstly, generating an initial value through an external key and plaintext information, and generating a key stream through iterative chaotic mapping; secondly, decomposing the plaintext image, and sequentially performing in-layer scrambling and interlayer scrambling on each component; and finally, performing diffusion operation to obtain a ciphertext image. The method not only has a good encryption effect and can effectively resist cutting attacks, but also has higher encryption efficiency and higher security compared with the same type of encryption algorithm.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to an image encryption storage method and system based on big data. Background technique [0002] With the rapid development of Internet technology, information security has been paid more and more attention. Digital image is the carrier of most information, so it is of great significance to study image encryption technology. Optical multi-image asymmetric encryption technology has been extensively studied because of its large encryption capacity, fast speed, and high security. Although the multi-image encryption technology can encrypt more information at the same time, the encrypted information also requires more transmission bandwidth. [0003] Prior art CN107392971A discloses an image encryption effect evaluation method based on gap inspection, firstly reads the encrypted image file, and scans in blocks to obtain a one-dimensional image data vector; the element values ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N1/32H04L9/00
CPCH04N1/32272H04L9/001H04N1/32309
Inventor 干怡树
Owner 干怡树
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