Embodiments of the present specification disclose data processing methods, apparatuses, and devices. One method comprises: obtaining an acquisition request for target data of a data owner; determining a trusted application (TAPP) for generating the target data based on decentralized identifier document (DID Doc) information of the data owner in response to the acquisition request; sending, to the TAPP, a target data generation request to use the TAPP to process data of the data owner obtained from a trusted institution; and receiving a processing result from the TAPP in response to the target data generation request.