ssh-keygen command builder

Compose a safe ssh-keygen invocation for ed25519 (or RSA/ECDSA) with comment, path, and KDF rounds.

Type RSA bits / ECDSA bits Comment (-C) Output path (-f) KDF rounds (-a, ed25519) Passphrase (-N)

Overwrite without prompt (-y is not used; we add no -q)

Command

Next steps

Install the public key with ssh-copy-id -i ~/.ssh/id_ed25519.pub user@host or append it to ~/.ssh/authorized_keys. Prefer ed25519; RSA is here for legacy boxes.