3results 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.

The invention provides an after-sales installation system and method for a heat pump, and the system comprises a communication network construction module which is used for constructing a data communication network between a heat pump unit and communication equipment; the encryption module is used for generating a random password for the heat pump unit based on the cloud platform and transmitting the random password to the heat pump master controller for encryption according to the data communication network; the auditing module is used for reading the after-sales installation information of the heat pump unit based on the cloud platform, collecting real-time installation information of the heat pump unit according to the data communication network, and auditing the real-time installation information of the heat pump unit based on the cloud platform according to the after-sales installation information; and the decryption module is used for generating a secret key corresponding to the heat pump unit based on the cloud platform when the verification is passed, and starting the heat pump unit according to the secret key. Efficient, safe and orderly management and control on after-sale installation of the heat pump are facilitated, and the installation efficiency and the installation quality of the heat pump are improved.