Domain Name Service Mechanism Based on Master-Slave Chain

Although the current Domain Name System (DNS) has been able to satisfy use of network services, there are still many challenges in future development Internet. The centralized management traditional domain name systems risks, and cannot defend against Distributed Denial Service (DDoS) attacks single points failure. As a decentralized tool, blockchain provides innovative ideas for improvement systems. Starting from existing resolution system combining application cross-chain communication DNS, this paper proposes service architecture model based on master-slave chain, adopts Multi-Sig Notary Schemes achieve communication, chain consensus algorithm (MSBFT) PBFT algorithm. In blockchain, uses VRF select master node. Finally, simulation experiment designed tests throughput analysis delay analytical model, compares main slave analyzes advantages model.