tldr/pages/linux/dropbearkey.md

dropbearkey

Generate SSH keys in Dropbear format. More information: https://manned.org/dropbearkey.1.

• Generate an SSH key of [t]ype ed25519 and write it to key [f]ile:

dropbearkey -t {{ed25519}} -f {{path/to/key_file}}

• Generate an SSH key of [t]ype ecdsa and write it to key [f]ile:

dropbearkey -t {{ecdsa}} -f {{path/to/key_file}}

• Generate an SSH key of [t]ype RSA with 4096-bit key [s]ize and write it to key [f]ile:

dropbearkey -t {{rsa}} -s {{4096}} -f {{path/to/key_file}}

• Print the private key fingerprint and public key in key [f]ile:

dropbearkey -y -f {{path/to/key_file}}