Encryption and decryption method of FBX format three-dimensional model

Abstract

The invention discloses an encryption and decryption method of an FBX format three-dimensional model, particularly relates to the field of three-dimensional models, and comprises an encryption moduleand a decryption module, 1) the encryption method of the encryption module comprises the following steps: S101, reading an original FBX format three-dimensional model file; and S102, inputting a section of text key by a copyright owner, and generating four sections of 32-bit hash values through MD5 encryption. The invention provides a simple, easy-to-use and high-efficiency encryption and decryption method for an FBX format three-dimensional model. Encryption and decryption method are adopted, the adding position of the random data of the model file is calculated through the preset secret key,the adding position of the random data of the model file can be adjusted by changing the secret key, and therefore the advantage that the decryption method is high in efficiency is kept, meanwhile, the safety of the algorithm is improved, the algorithm is not prone to being cracked, and the complexity of the three-dimensional model decryption algorithm is low.

Description

technical field [0001] The present invention relates to the technical field of three-dimensional models, and more specifically, the present invention relates to an encryption and decryption method of a three-dimensional model in FBX format. Background technique [0002] The 3D model file in FBX format is a 3D model file widely used at present. The 3D model files in FBX format are in an unprotected state. When these files are placed on the network or installed on the client's computer with the system, any user can read and modify these 3D model files, or use these 3D models with For other applications, there is a lack of proper protection of the designer's work or the owner's assets. [0003] The existing three-dimensional model protection method usually transforms the point coordinates of the surface elements of the object in the three-dimensional model, so that unauthorized users cannot correctly obtain the original three-dimensional object. This method usually requires c...

AI Technical Summary

Problems solved by technology

[0003] The existing 3D model protection methods usually transform the point coordinates of the object surface elements in the 3D model, so that unauthorized users cannot correctly obtain the original 3D objects

This method usually requires complex matrix transformation calculations to restore the model after the model is loaded. For large-scale 3D models, the decryption method takes a long time and has a great impact on system performance.

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