A dns system based on blockchain technology

Abstract

A DNS system based on blockchain technology provided by the present invention adopts a main chain to record a small amount of important information, and is mainly responsible for storing requests on top-level domains and hash values ​​of sub-chains; The sub-chain can be expanded, migrated and discarded appropriately. It is mainly responsible for storing all operation requests under a specific TLD. Different sub-chains store records under different TLDs. All sub-chains maintain the same block as the main chain Height; nodes are distributed on the main chain and the sub-chain and only allow storage of the main chain and part of the sub-chains, using linkable ring signature technology to ensure the anonymity of the voting process alliance nodes, and nodes using proxy signatures to process unstored The operation on the sub-chain uses sharding technology to improve the throughput of the system, solves the technical problems of poor security, limited performance, poor scalability, and low throughput in the existing technology, and achieves higher security and higher scalability , higher throughput and better anonymity.

Description

technical field [0001] The present invention relates to the Internet field, in particular, to a DNS system based on block chain technology. Background technique [0002] Such as figure 1 As shown, Domain Name System DNS is an important infrastructure on the Internet. Domain names are easy for people to understand and use, while IP addresses are more conducive to computer processing. DNS is responsible for converting domain names into IP addresses, making it easier for people to access the Internet. The current DNS is a centralized distributed structure, which is uniformly scheduled and managed by ICANN. As a centralized organization, ICANN completely controls the distribution of domain names, which has serious risks of power abuse and single-point failure. In addition, the current DNS is vulnerable to various problems such as DDOS attacks, cache pollution attacks, disappearance risks, and blinding risks. According to the "Global DNS Threat Report 2018", at least 77% of org...

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a DNS system based on block chain technology, adopts a main chain, records a small amount of important information, and is mainly responsible for storing requests on top-level domains and hash values ​​of sub-chains; multiple sub-chains respectively connected to the main chain Chain, which can be expanded, migrated and discarded appropriately, is mainly responsible for storing all operation requests under a specific TLD, different sub-chains store records under different TLDs, and all sub-chains maintain the same block height as the main chain ; Nodes, including alliance nodes and ordinary nodes, are distributed on the main chain and the sub-chains and only store part of the sub-chains, and use proxy signatures to allow nodes to handle operations on those sub-chains that are not stored; the alliance nodes , distributed on the main chain, can manage the rights of requests on the TLD; the ordinary nodes, distributed on the sub-chain, can participate in various operation requests under the TLD, solving the problem of poor security in the prior art, Technical problems of limited performance, poor scalability, and low throughput

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