# tlmgr key
> Manage GPG keys used to verify TeX Live databases.
> More information: <https://www.tug.org/texlive/tlmgr.html>.
- List all keys for TeX Live:
`tlmgr key list`
- Add a key from a specific file:
`sudo tlmgr key add {{path/to/key.gpg}}`
- Add a key from `stdin`:
`cat {{path/to/key.gpg}} | sudo tlmgr key add -`
- Remove a specific key by its ID:
`sudo tlmgr key remove {{key_id}}`