MetaMask 插件如何工作？

Question

Can someone explain or drop a link on how the MetaMask plugin works? Interesting to create something verbose, but a little misunderstood, this plugin is not server-specific (decentralized). But if we want to restore our wallet and enter a secret phrase, then where does the request go? How does MetaMask know that our secret phrase actually exists and is correct? Who does MetaMask eventually communicate with and where does MetaMask receive information about this?

Answer 1

MetaMask provides an interface with the Ethereum blockchain. It allows efficient account management and connectivity to the Ethereum blockchain without running the Ethereum node software locally.

MetaMask allows connectivity to the Ethereum blockchain through the infrastructure available at Infura ( https://infura.io ). This allows users to interact with the blockchain without having to host any node locally.

Metamask injects web3 to the window object and browsers communicate to window.web3 and it communicates with infura.

Infura is a public-hosted node. The drawback of the public hosted node is that developer must trust it, where there might be some security concerns. For development and testing, however, it is fast and efficient.