Abstract: A method, implementable by a data processing server comprising a trusted execution environment, includes: obtaining a ciphertext of target data from an external system; obtaining one or more parameters of a model for processing the target data; obtaining, via a data transmission channel between the trusted execution environment and the external system, an encryption key associated with the ciphertext of the target data; inputting the ciphertext of the target data and the one or more parameters of the model to the trusted execution environment; decrypting, in the trusted execution environment, the ciphertext using the encryption key to obtain the target data; processing, in the trusted execution environment, the obtained target data using the model with the one or more parameters to obtain a result; encrypting, in the trusted execution environment, the result using the encryption key; and sending the encrypted result to the external system.

Abstract: A method, implementable by a data processing server comprising a trusted execution environment, includes: obtaining a ciphertext of target data from an external system; obtaining one or more parameters of a model for processing the target data; obtaining, via a data transmission channel between the trusted execution environment and the external system, an encryption key associated with the ciphertext of the target data; inputting the ciphertext of the target data and the one or more parameters of the model to the trusted execution environment; decrypting, in the trusted execution environment, the ciphertext using the encryption key to obtain the target data; processing, in the trusted execution environment, the obtained target data using the model with the one or more parameters to obtain a result; encrypting, in the trusted execution environment, the result using the encryption key; and sending the encrypted result to the external system.

Abstract: A method, implementable by a data processing server comprising a trusted execution environment, includes: obtaining a ciphertext of target data from an external system; obtaining one or more parameters of a model for processing the target data; obtaining, via a data transmission channel between the trusted execution environment and the external system, an encryption key associated with the ciphertext of the target data; inputting the ciphertext of the target data and the one or more parameters of the model to the trusted execution environment; decrypting, in the trusted execution environment, the ciphertext using the encryption key to obtain the target data; processing, in the trusted execution environment, the obtained target data using the model with the one or more parameters to obtain a result; encrypting, in the trusted execution environment, the result using the encryption key; and sending the encrypted result to the external system.

Abstract: A method, implementable by a data processing server comprising a trusted execution environment, includes: obtaining a ciphertext of target data from an external system; obtaining one or more parameters of a model for processing the target data; obtaining, via a data transmission channel between the trusted execution environment and the external system, an encryption key associated with the ciphertext of the target data; inputting the ciphertext of the target data and the one or more parameters of the model to the trusted execution environment; decrypting, in the trusted execution environment, the ciphertext using the encryption key to obtain the target data; processing, in the trusted execution environment, the obtained target data using the model with the one or more parameters to obtain a result; encrypting, in the trusted execution environment, the result using the encryption key; and sending the encrypted result to the external system.

Abstract: A method, implementable by a data processing server comprising a trusted execution environment, includes: obtaining a ciphertext of target data from an external system; obtaining one or more parameters of a model for processing the target data; obtaining, via a data transmission channel between the trusted execution environment and the external system, an encryption key associated with the ciphertext of the target data; inputting the ciphertext of the target data and the one or more parameters of the model to the trusted execution environment; decrypting, in the trusted execution environment, the ciphertext using the encryption key to obtain the target data; processing, in the trusted execution environment, the obtained target data using the model with the one or more parameters to obtain a result; encrypting, in the trusted execution environment, the result using the encryption key; and sending the encrypted result to the external system.

Abstract: A method, implementable by a data processing server comprising a trusted execution environment, includes: obtaining a ciphertext of target data from an external system; obtaining one or more parameters of a model for processing the target data; obtaining, via a data transmission channel between the trusted execution environment and the external system, an encryption key associated with the ciphertext of the target data; inputting the ciphertext of the target data and the one or more parameters of the model to the trusted execution environment; decrypting, in the trusted execution environment, the ciphertext using the encryption key to obtain the target data; processing, in the trusted execution environment, the obtained target data using the model with the one or more parameters to obtain a result; encrypting, in the trusted execution environment, the result using the encryption key; and sending the encrypted result to the external system.