一种基于信用的改进PBFT高效共识机制

Based on the characteristics and requirements of the consortium blockchain, this paper analyzed the protocol performance of the consensus mechanism and the spending of resources. Based on PBFT (practical byzantine fault tolerance) , this paper targeted the agreement in the consensus process for improvement. In the new consensus mechanism, it first introduced the credit evaluation, and used the simplified coherence protocol to promote the system to enter into a virtuous circle. It modified the checkpoint protocol that the nodes could dynamically join and leaved the system and improve the system flexibility. The experimental results show that the new consensus mechanism can shorten transaction confirmation time, reduce the use of communication resources, and improve system efficiency in the long running.