Abstract: A method for storing application program information including segmenting the application program information into program sub-information, with an information segmentation algorithm of the application program information having undergone algorithm obfuscation processing; and storing the program sub-information. The present disclosure significantly reduces the possibility of application program information being acquired by hackers and the like, and improves the security of application program information and electronic devices.

Abstract: A data processing method, apparatus and system are disclosed. The method includes: splitting a preset data processing module from a machine learning model, to generate a security application module configured for performing encryption calculation on data input into the machine learning model; taking, through a preset operator, an output value of an operation layer in the split machine learning model as an input value to be input into the security application module, and inputting the input value into the security application module; performing, through the security application module, subgraph calculation in an isolated operating environment according to the input value, to obtain a calculation result; returning the calculation result to the preset operator. The present application solves the technical problem of high computational pressure of TEE model due to that different reasoning frameworks need to be adapted to different customer requirements in the TEE model in related technologies.

Abstract: Disclosed are data storage and verification methods and a device executable in a trusted execution environment. The data storage method comprises: encrypting, using a first key, user data and version information of the user data to generate first ciphertext, and storing the first ciphertext into a general storage space (S310); generating verification information of the user data (S320); and storing the version information and the verification information into a secure storage space (S330). The present disclosure effectively prevents version rollback of user data.

Abstract: A method for storing application program information including segmenting the application program information into program sub-information, with an information segmentation algorithm of the application program information having undergone algorithm obfuscation processing; and storing the program sub-information. The present disclosure significantly reduces the possibility of application program information being acquired by hackers and the like, and improves the security of application program information and electronic devices.