A data processing method and device based on a blockchain network and related equipment

Abstract

This application provides a data processing method, apparatus, and related equipment based on a blockchain network. The method includes: a first node sending an access request for target data to a second node of a second business sub-chain, the access request carrying verification information of a first block of the first business sub-chain, the first block storing a pre-access record of the target data by the first node; receiving first response data sent by the second node, the first response data including authorized access information of the target data and identification information of the Trusted Execution Environment (TEE) of a third node; sending a request to obtain the target data to the third node according to the identification information of the third node's TEE, and receiving encrypted target data generated by the third node's TEE sent by the third node. This method can achieve efficient data sharing between multiple chains and ensure security and privacy during cross-chain data interaction, thereby improving the operating efficiency and security of the blockchain network.

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