生成新的SSH

地址：https://docs.github.com/en/github/authenticating-to-github/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent
1、Open Terminal.
2、Paste the text below, substituting in your GitHub email address.

$ ssh-keygen -t ed25519 -C "your_email@example.com"

• Note: If you are using a legacy system that doesn’t support the Ed25519 algorithm, use:

  $ ssh-keygen -t rsa -b 4096 -C "your_email@example.com"

• This creates a new ssh key, using the provided email as a label.
  Generating public/private ed25519 key pair.
  3、When you’re prompted to “Enter a file in which to save the key,” press Enter. This accepts the default file location.

  Enter a file in which to save the key (/Users/you/.ssh/id_ed25519): [Press enter]

  4、At the prompt, type a secure passphrase. For more information, see “Working with SSH key passphrases”.

  Enter passphrase (empty for no passphrase): [Type a passphrase]
  Enter same passphrase again: [Type passphrase again]