Blockchain consensus method and device

A non-transitory, computer-readable medium storing one or more instructions executable by a computer system comprising one or more processors to perform operations comprising:

• obtaining, by a blockchain node of a blockchain network, service data on which to perform consensus processing, the service data comprising data generated with a request of a service, the blockchain network comprising a plurality of blockchain nodes;
• classifying, by the blockchain node, the service data based on a service function and a service content of the service, wherein the service function comprises a function to be performed using the service data and the service content defines an item processed by the service function;
• determining, by the blockchain node, a service type of the service data based on classifying the service data and based on a vulnerability of the service data, wherein the vulnerability of the service data indicates whether the service data is vulnerable or invulnerable to an attack;
• determining, by the blockchain node, a consensus policy based on a predetermined mapping relationship between the consensus policy and the service type, wherein the consensus policy comprises a method of performing consensus processing on the service data;
• identifying, by the blockchain node, based on the consensus policy, a consensus algorithm that comprises a respective set of operating principles defining a consensus service for the service type;
• identifying, by the blockchain node, based on the consensus algorithm, a minimum number of consensus nodes to perform a round of consensus processing, wherein the minimum number of consensus nodes comprises a percentage of available consensus nodes within the blockchain network required by the consensus algorithm to process the service data;
• selecting, by the blockchain node from a consensus network based on the consensus policy, the minimum number of consensus nodes that provides the consensus service corresponding to the service type;
• sending, by the blockchain node, the service data to the minimum number of consensus nodes;
• and
• performing, by the minimum number of consensus nodes, the consensus service on the service data.

A computer-implemented system comprising:

• one or more computers;
• and
• one or more computer memory devices interoperably coupled with the one or more computers and having tangible, non-transitory, machine-readable media storing one or more instructions that, when executed by the one or more computers, perform one or more operations comprising:
• obtaining, by a blockchain node of a blockchain network, service data on which to perform consensus processing, the service data comprising data generated with a request of a service, the blockchain network comprising a plurality of blockchain nodes;
• classifying, by the blockchain node, the service data based on a service function and a service content of the service, wherein the service function comprises a function to be performed using the service data and the service content defines an item processed by the service function;
• determining, by the blockchain node, a service type of the service data based on classifying the service data and based on a vulnerability of the service data, wherein the vulnerability of the service data indicates whether the service data is vulnerable or invulnerable to an attack;
• determining, by the blockchain node, a consensus policy based on a predetermined mapping relationship between the consensus policy and the service type, wherein the consensus policy comprises a method of performing consensus processing on the service data;
• identifying, by the blockchain node, based on the consensus policy, a consensus algorithm that comprises a respective set of operating principles defining a consensus service for the service type;
• identifying, by the blockchain node, based on the consensus algorithm, a minimum number of consensus nodes to perform a round of consensus processing, wherein the minimum number of consensus nodes comprises a percentage of available consensus nodes within the blockchain network required by the consensus algorithm to process the service data;
• selecting, by the blockchain node from a consensus network based on the consensus policy, the minimum number of consensus nodes that provides the consensus service corresponding to the service type;
• selecting, by the blockchain node from a consensus network based on the consensus policy, the minimum number of consensus nodes that provides a consensus service corresponding to the service type;
• sending, by the blockchain node, the service data to the minimum number of consensus nodes;
• and
• performing, by the minimum number of consensus nodes, the consensus service on the service data.