Data processing method and apparatus, electronic device and storage medium

An electronic device, comprising:

• a processor and a memory, wherein the memory stores machine-readable instructions executable by the processor, the processor is used for executing the machine-readable instructions stored in the memory, and when the machine-readable instructions are executed by the processor, the processor implements the steps of a data processing method, comprising:
• receiving a data tracing request sent by a client, wherein the tracing request carries a tracing clue ciphertext which is generated by encrypting a target tracing clue based on a shared key agreed by the client and a trusted hardware execution environment, and wherein the target tracing clue is used for identifying target data;
• decrypting the tracing clue ciphertext in the trusted hardware execution environment to obtain the target tracing clue;
• searching for target data matched with the target tracing clue from a database according to the target tracing clue, and determining a target tracing result according to the target data;
• wherein the database is used for storing the corresponding relationship between the data identification information and the data and supporting query access of the data;
• and
• in response to the data tracing request, feeding back the target tracing result to the client.

A non-transitory computer-readable storage medium, wherein the computer-readable storage medium stores thereon a computer program, and when the computer program is executed by a processor, the processor implements the steps of a data processing method, comprising:

• receiving a data tracing request sent by a client, wherein the tracing request carries a tracing clue ciphertext which is generated by encrypting a target tracing clue based on a shared key agreed by the client and a trusted hardware execution environment, and wherein the target tracing clue is used for identifying target data;
• decrypting the tracing clue ciphertext in the trusted hardware execution environment to obtain the target tracing clue;
• searching for target data matched with the target tracing clue from a database according to the target tracing clue, and determining a target tracing result according to the target data;
• wherein the database is used for storing the corresponding relationship between the data identification information and the data and supporting query access of the data;
• and
• in response to the data tracing request, feeding back the target tracing result to the client.