ssh-keygen

Generate SSH key pairs.

$ ssh-keygen -t ed25519

Key type

ED25519

RSA

ECDSA

DSA

Output file (-f)Comment (-C)

Examples

# Generate ED25519 key
ssh-keygen -t ed25519

# Generate RSA key
ssh-keygen -t rsa -b 4096

# Custom file and comment
ssh-keygen -t ed25519 -f ~/.ssh/mykey -C "user@host"

# No passphrase
ssh-keygen -t ed25519 -N ''