Data access method, apparatus, device and readable storage medium

A data access method applied at a client of a target application, comprising:

• sending, in response to a credential management service passing verification, an access credential for data access to the credential management service;
• processing, with a processing credential corresponding to the access credential, target data generated by the client in the target application;
• storing the processed target data to a data storage side;
• receiving a data access authorization request from a use terminal of a data resource, the data resource comprising the target data;
• generating, in response to a positive indication of the data access authorization request, authorization information for the data access authorization request;
• and
• sending the authorization information to the use terminal of the data resource.

A data access method applied at a credential management service, comprising:

• sending an attestation report to a plurality of clients of a target application, the attestation report indicating a reliability of an environment for storing access credentials;
• receiving a plurality of access credentials respectively corresponding to the plurality of clients from the plurality of clients, wherein at least one access credential of the plurality of access credentials is configured to access data associated with the corresponding client;
• and
• sending, in response to receiving an access credential request for at least one client of the plurality of clients from a use terminal of a data resource, the at least one access credential corresponding to the at least one client to the use terminal of the data resource.