DATA MANAGEMENT METHOD FOR BLOCKCHAIN SYSTEM, DEVICE, MEDIUM, AND ELECTRONIC APPARATUS

摘要

Embodiments of the present application provide a data management method for a blockchain system, a device, a medium, and an electronic apparatus. The blockchain system comprises a ledger node sub-network and a service node sub-network. The data management method comprises: after a ledger node generates a first data block, adding, to a block header of the first data block, first key information for authenticating a block header of a second data block generated after the first data block; generating a signature corresponding to the first data block, and adding the signature corresponding to the first data block to the block header of the first data block; and publishing the block header of the first data block to the service node sub-network, such that a service node performs authentication on the signature comprised in the block header of the first data block, and after the signature is authenticated, acquiring the first key information to perform authentication on the block header of the second data block. The technical solution of the embodiments of the present application achieves the purpose of flexibly updating an authentication key in a block header, thereby effectively ensuring security of block header data.