Alibaba Group Holding Limited
Shared blockchain data storage based on error correction coding in trusted execution environments

Abstract:

Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for processing blockchain data. One of the methods includes receiving a request from a blockchain node of the blockchain network to execute one or more software instructions in a trusted execution environment (TEE). One or more blocks infrequently accessed for executing the one or more software instructions are determined. Error correction coding of the one or more blocks in the TEE is performed to generate one or more encoded blocks. Each of the one or more encoded blocks are divided into a plurality of datasets based on the one or more software instructions. The plurality of datasets and a data storage arrangement are sent to blockchain network nodes, where the data storage arrangement indicates at least one of the plurality of datasets to be stored by each of the blockchain nodes.