Did login metamask

Realization principle

reference

One-click Login with Blockchain: A MetaMask Tutorial

Ethereum interface document

JSON RPC · ethereum/wiki Wiki

advantage

• Improve safety ： Proving ownership through public key encryption can be said to be better than through email / Passwords or third-party proof of ownership are more secure , because MetaMask Store credentials on the local computer , Instead of online servers , This makes the attack surface smaller .
• Simplified user experience ： Quick landing , No need to enter or remember any passwords .
• Increase privacy ： No email required , No third parties involved .

defects

• Users need to install MetaMask： without MetaMaskAPP Or a browser that installs plug-ins , This login process is obviously not feasible . If the audience user is right Web3 Not interested or unknown , They will even consider installing MetaMask It's very unlikely .