Efficient Byzantine Consensus Mechanism Based on Reputation in IoT Blockchain

Figure 1

In the proposed EBRC consensus protocol, Node 1, Node 3, Node 4, Node 5, and Node 7 in the figure are normal nodes, while Node 2 and Node 6 are malicious nodes. After the nodes are first evaluated, normal nodes can enter the node election link, and after the election, they become consensus nodes for consensus.