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Image encryption method based on quantum key distribution and pixel scrambling

A quantum key distribution and encryption method technology, which is applied in the field of image encryption based on quantum key distribution and pixel scrambling, can solve the problems of low security and achieve high security, weak pixel correlation, and low pixel change rate. The effect of high information entropy

Pending Publication Date: 2022-06-03
ENG UNIV OF THE CHINESE PEOPLES ARMED POLICE FORCE
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional classic image encryption algorithm has low security and cannot meet the existing needs

Method used

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  • Image encryption method based on quantum key distribution and pixel scrambling
  • Image encryption method based on quantum key distribution and pixel scrambling
  • Image encryption method based on quantum key distribution and pixel scrambling

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Embodiment Construction

[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0043] The present invention provides a technical solution: an image encryption method based on quantum key distribution and pixel scrambling, comprising the following steps:

[0044] S1: image preprocessing;

[0045] S2: QKD key generation;

[0046] S3: Pixel scrambling of the image + QKD encryption;

[0047] S4: Decrypt with the generated QDK key;

[0048] S5: pixel recovery;

[0049] S6: Obtain the original image.

[0050] In...

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Abstract

The invention discloses an image encryption method based on quantum key distribution and pixel scrambling in the technical field of information security. The method comprises the following steps: S1, image preprocessing; s2, generating a QKD key; s3, carrying out pixel scrambling and QKD encryption on the image; s4, carrying out decryption by utilizing the generated QDK key; s5, restoring the pixels; s6, obtaining an original image; the key used in the image encryption algorithm based on quantum key distribution is generated by a quantum key distribution protocol, compared with other classic image encryption algorithms, the algorithm has the greatest advantage of high security, and the algorithm is good in statistical property and can effectively prevent statistical attack through performance analysis of the encryption algorithm; the correlation of the encrypted image in three directions is very weak, so that an attacker cannot obtain useful information by using the correlation; the pixel difference between the plaintext image and the ciphertext image is larger; the information entropy of the ciphertext image is very close to an ideal value, and the attack of the information entropy can be resisted.

Description

technical field [0001] The invention relates to the technical field of information security, in particular to an image encryption method based on quantum key distribution and pixel scrambling. Background technique [0002] Image is an important way of carrying information, and the security of image in transmission has always been a hot research direction in the field of information security. For this reason, various image encryption algorithms have been proposed, including encryption algorithms based on various transformation theories, and encryption algorithms based on chaos theory. There are encryption algorithms that combine transformation theory and chaos theory to achieve encryption, but these are encryption algorithms in the classical field. The traditional classical image encryption algorithm has low security and can no longer meet the existing needs. The development of quantum mechanics brings new ideas to information security transmission. Using the characteristic...

Claims

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Application Information

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IPC IPC(8): G06F21/60H04N1/44H04L9/08
CPCG06F21/602H04N1/4486H04L9/0852
Inventor 黄红梅
Owner ENG UNIV OF THE CHINESE PEOPLES ARMED POLICE FORCE
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