A two-dimensional chaotic model and its application in image encryption

Lei, RongQing; Liu, LingFeng

doi:10.1088/1402-4896/ad4f64

Cited by 1 publication

(1 citation statement)

References 27 publications

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“…As can be seen from the figure, despite the fact that we have implemented a variety of attack strategies of different degrees against the cryptographic images, we are still able to accurately decrypt the correct results while maintaining a satisfactory level of clarity. What's more, under the same attack conditions, our algorithm shows a more excellent performance compared to the comparison algorithm [37], which further verifies the high robustness of our encryption algorithm.…”

Section: Robustness Analysissupporting

confidence: 63%

A hierarchical authorization image encryption algorithm based on two-dimensional time-varying delayed chaotic map

Jin,

Fan,

Zhang

et al. 2024

Phys. Scr.

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With the continuous development of information technology, the security of images in the process of transmission, storage and use has also become the focus of network security. However, most of the existing image encryption algorithms only focus on the security of images in the transmission and storage process, while ignoring their security in use. For some special organisations, images are very sensitive information and their security during usage is also very important. Similar to the advanced encryption information stored in the public security system, the depth of information that can be viewed by ordinary privileges and advanced privileges is different. But there is no such hierarchical authorisation algorithm in image security. In order to solve this problem, this study proposes a hierarchical authorisation encryption and decryption algorithm, which achieves hierarchical decryption while ensuring the security of encrypted images. In this method, the image is decomposed by bit plane, and the bit plane is grouped, and each group adopts different key. According to the level of legitimate users, the corresponding key is assigned to them, and the clarity of the decrypted image requested by different levels of users is different, that is, the information depth is different. This method extends the scope of application of the encryption algorithm and is more practical than the existing encryption algorithm.

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Section: Robustness Analysissupporting

confidence: 63%