A geometric segmentation-based image-text bidirectional dynamic encryption and decryption method and system

By employing a bidirectional dynamic encryption and decryption method for images and text based on geometric segmentation, images are randomly cut and shuffled, and then encrypted with text information. This method addresses the vulnerability of image-text separation protection and achieves a higher level of data security and traceability.

CN122160464APending Publication Date: 2026-06-05INSPUR GENERSOFT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INSPUR GENERSOFT CO LTD
Filing Date
2026-01-04
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

In existing technologies, the protection measures for images and text are separated, which allows attackers to target weaknesses separately and make it difficult to form a systematic data theft prevention and traceability capability, and thus unable to cope with complex data crawling and leakage threats.

Method used

A bidirectional dynamic encryption and decryption method for images and text based on geometric segmentation is adopted. The image is randomly and irregularly cut and shuffled, and the cutting method and restoration order are recorded. The image and text information are then fused and encrypted, and the image and text are encrypted using an encryption algorithm.

Benefits of technology

It enables more secure network transmission of image and text information data, improves overall leakage prevention and traceability capabilities, makes it difficult for attackers to crack images and text, and allows for precise traceability of leaked data.

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Abstract

The application belongs to the field of image communication, and provides a bidirectional dynamic encryption and decryption method and system for image and text based on geometric segmentation, which comprises the following steps: the server initially segments a target image, recursively segments each segmented image block, obtains segmented image sub-blocks, disarranges the segmented image sub-blocks in each segmented image block in disorder to obtain an encrypted target image; extracts an encrypted text key based on the encrypted target image; combines target user information, target text, an initial segmentation number of the target image and a disorder sequence of the encrypted target image to obtain combined information, encrypts the combined information by using the encrypted text key to obtain an encrypted target text; the front end receives the encrypted target image and the encrypted target text, obtains a decryption key based on the encrypted target image, decrypts the encrypted target text by using the decryption key to obtain the combined information; decrypts the encrypted target image based on the combined information to obtain a target image; and the network transmission of the image and the text is more secure.
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