&apt-docinfo;
apt-key 8
apt-key APT key management utility
`apt-key` command/ `arguments`

## Description

`apt-key` is used to manage the list of keys used by apt to authenticate packages. Packages which have been authenticated using these keys will be considered trusted.

## Commands

add filename

  Add a new key to the list of trusted keys. The key is read from filename, or standard input if filename is `-`.

del keyid

  Remove a key from the list of trusted keys.

export keyid

  Output the key keyid to standard output.

exportall

  Output all trusted keys to standard output.

list

  List trusted keys.

finger

  List fingerprints of trusted keys.

adv

  Pass advanced options to gpg. With adv --recv-key you can download the public key.

update

  Update the local keyring with the keyring of Debian archive keys and removes from the keyring the archive keys which are no longer valid.

## Files

`/etc/apt/trusted.gpg`

  Keyring of local trusted keys, new keys will be added here.

`/etc/apt/trustdb.gpg`

  Local trust database of archive keys.

`/usr/share/keyrings/debian-archive-keyring.gpg`

  Keyring of Debian archive trusted keys.

`/usr/share/keyrings/debian-archive-removed-keys.gpg`

  Keyring of Debian archive removed trusted keys.

## See Also

&apt-get;, &apt-secure;

&manbugs; &manauthor;