METHOD FOR CREATING NODE GROUP IN ALLIANCE CHAIN NETWORK, AND TRANSACTION METHOD BASED ON NODE GROUP

摘要

A method for creating a node group in an alliance chain network, and a transaction method based on a node group. A manager of a first node in an alliance chain network can initiate a group creation transaction by means of an alliance chain account thereof, wherein the group creation transaction includes group creation sub-transactions. After the group creation transaction is broadcast to the alliance chain network, the first node creates a private chain locally according to the group creation sub-transactions when executing the group creation transaction, which is equivalent to creating a node group that includes the first node. Moreover, other nodes do not create a private chain locally when executing the group creation transaction. Finally, both the first node and the other nodes write the group creation transaction into a local alliance chain. By means of the method, the privacy of service data connected to a node can be protected.