Asynchronous blockchain consensus method and system with decoupled data broadcast and consensus, electronic device and storage medium

An asynchronous blockchain consensus method with decoupled data broadcast and consensus, applied to a blockchain system containing a set of consensus nodes, executed by the consensus nodes in the set, comprising:

• running a plurality of parallel data broadcast protocols between said nodes;
• executing a data sequential consensus protocol between said nodes based on the results of said data broadcast protocols using the height of the data block chain as input;
• wherein:
• the data broadcast protocols are required to satisfy the following conditions:
• 1) The protocol sequentially outputs blocks of data;
• 2) The output is accompanied by evidence of completion of the broadcast protocol, which is constructed using a threshold signature, which proves that a majority of the participants have received the same;
• 3) The output is derived from the input from the broadcast protocol;
• 4) The adversary is unable to forge the evidence described in 2);
• in the data-sequential consensus protocol, all the participating nodes work together to sequentially execute the asynchronous multi-valued Byzantine consensus protocol, i.e., the MVBA protocol, the specific implementation of the MVBA protocol is modular, and according to different needs, different MVBA protocols are used, but all these MVBA protocols need to satisfy the following conditions:
• 1) consistency;
• 2) external validity;
• 3) termination;
• and
• 4) quality;
• maintaining a chain of confirmation blocks between said nodes based on the results of said data sequential consensus protocol,
• wherein the contents of said chain of confirmation blocks being the final consensus results;
• wherein each said node comprises a plurality of order devices, kn broadcaster devices and a plurality of tx_pool devices,
• the tx_pool devices being responsible for receiving and distributing transactions or data obtained from the client or other nodes, and
• the broadcaster devices being responsible for executing the data broadcasting protocol and performing the processing related to the inputs and outputs of that protocol;
• the order device is responsible for executing the data order consensus protocol and performing processing related to the inputs and outputs of that protocol;
• the kn broadcaster devices correspond one-to-one with the kn data broadcast instances, and
• each node has k broadcaster devices acting as leaders in the data broadcast protocol instances in which they participate;
• said tx_pool device distributes transactions or data to the k leader broadcasters;
• each said broadcaster device is responsible for maintaining one of said data broadcast protocol instances;
• said order device collects the results of the execution of said data broadcast protocol instances by said broadcaster devices within the cluster and converts said results into said confirmation block on the chain.