Create SSH Key

ssh.md

Create SSH Key

1a. Use ed25519 algorithm

ssh-keygen -t ed25519 -C "[email protected]"

• -t Specifies the type of key to create.
• -C Provides a new comment.

1b. Use rsa algorithm

ssh-keygen -t rsa -b 4096 -C "[email protected]"

• -t Specifies type of key to create.
• -b Specifies number of bits in the key to create.
• -C Provides new comment.

2. Enter passphrase when prompted

3. Add to ~/.ssh/config file

Use selected algorithm in file name.

Host *
  AddKeysToAgent yes
  UseKeychain yes
  IdentityFile ~/.ssh/id_ed25519

• AddKeysToAgent Specifies whether keys should be automatically added to running ssh-agent.
• UseKeychain Specifies whether passphrase should be stored in keychain.
• IdentifyFile Specifies file authentication identity is read from.

4. Store passphrase in keychain

Use selected algorithm in file name.

ssh-add --apple-use-keychain ~/.ssh/id_ed25519

Enter passphrase again when prompted.