Problem:
If you want to generate a key file using ssh-keygen
, it will prompt you for a key password:
$ ssh-keygen -t ed25519 -f id_ed25519´ Generating public/private ed25519 key pair. Enter passphrase (empty for no passphrase):
For scripts and automated deployments, however, you want to avoid the prompt and disable the password encryption of the key.
Solution:
Use -N ""
to set an empty password:
ssh-keygen -t ed25519 -f id_ed25519 -N ""
For example:
$ ssh-keygen -t ed25519 -f id_ed25519 -N "" Generating public/private ed25519 key pair. Your identification has been saved in id_ed25519 Your public key has been saved in id_ed25519.pub The key fingerprint is: SHA256:o/PVrBXpccLOjrVi6vfGWcmNtoubpINfrMxbz4EXtrU uli@uli-desktop The key's randomart image is: +--[ED25519 256]--+ | | | | | | | . . | | S *.++.| | . . B B*+o| | o ...#++E | | o.+=%+B.. | | .+=X*B.+. | +----[SHA256]-----+