borg-key-change-passphrase - Change repository key file passphrase
borg [common options] key change-passphrase [options]
The key files used for repository encryption are optionally passphrase
protected. This command can be used to change this passphrase.
Please note that this command only changes the passphrase, but not any secret
protected by it (like e.g. encryption/MAC keys or chunker seed). Thus,
changing the passphrase after passphrase and borg key got compromised does not
protect future (nor past) backups to the same repository.
See
borg-common(1) for common options of Borg commands.
# Create a key file protected repository
$ borg rcreate --encryption=keyfile-aes-ocb -v
Initializing repository at "/path/to/repo"
Enter new passphrase:
Enter same passphrase again:
Remember your passphrase. Your data will be inaccessible without it.
Key in "/root/.config/borg/keys/mnt_backup" created.
Keep this key safe. Your data will be inaccessible without it.
Synchronizing chunks cache...
Archives: 0, w/ cached Idx: 0, w/ outdated Idx: 0, w/o cached Idx: 0.
Done.
# Change key file passphrase
$ borg key change-passphrase -v
Enter passphrase for key /root/.config/borg/keys/mnt_backup:
Enter new passphrase:
Enter same passphrase again:
Remember your passphrase. Your data will be inaccessible without it.
Key updated
# Import a previously-exported key into the specified
# key file (creating or overwriting the output key)
# (keyfile repositories only)
$ BORG_KEY_FILE=/path/to/output-key borg key import /path/to/exported
Fully automated using environment variables:
$ BORG_NEW_PASSPHRASE=old borg rcreate --encryption=repokey-aes-ocb
# now "old" is the current passphrase.
$ BORG_PASSPHRASE=old BORG_NEW_PASSPHRASE=new borg key change-passphrase
# now "new" is the current passphrase.
borg-common(1)
The Borg Collective