2results about How to "Secure encryption" patented technology

The application discloses a kind of based on AES-GCM implementation three-dimensional model software online encryption method and device.The method includes the following steps: first, obtain the front three-dimensional model software data, then format, then generate initial fingerprint code;Then using the AES key and initialization vector IV based on AES-GCM, initial fingerprint code is encrypted, and encrypted fingerprint code and authentication label are generated;AES key is obtained by crypto.subtle.generateKey encapsulation function;AES key, initialization vector IV and authentication label are all stored in the local file of front end;AES key, initialization vector IV and authentication label are called from local file, and encrypted fingerprint code is decrypted to obtain decrypted fingerprint code;Finally, the decrypted fingerprint code is compared with initial fingerprint code, to obtain the authorization of front three-dimensional model software data.The method can be completely based on front end without back end to carry out safe AES-GCM encryption and decryption, guarantee the data security of three-dimensional model software.

This application provides a secure channel compressed transmission method, apparatus, and device. In one example of this application, the method includes: for any data block to be processed, extracting multi-dimensional compression-related features of the data block; determining a predicted compression ratio of the data block based on the multi-dimensional compression-related features; determining the uncompressed path prediction time and compressed path prediction time corresponding to the data block based on the predicted compression ratio; determining a compression strategy for the data block based on the uncompressed path prediction time and compressed path prediction time; wherein the compression strategy includes enabling compression or skipping compression; and transmitting each data block to be processed through a secure channel according to the compression strategy of each data block. This method can improve the reliability and rationality of compression decisions and improve transmission efficiency while ensuring security encryption.