APT-KEY(8)                                                                                                        APT                                                                                                       APT-KEY(8)

NAME
       apt-key - Deprecated APT key management utility

SYNOPSIS
       apt-key [--keyring filename] {add filename | del keyid | export keyid | exportall | list | finger | adv | update | net-update | {-v | --version} | {-h | --help}}

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.

       Use of apt-key is deprecated, except for the use of apt-key del in maintainer scripts to remove existing keys from the main keyring. If such usage of apt-key is desired the additional installation of the GNU Privacy Guard
       suite (packaged in gnupg) is required.

       apt-key(8) will last be available in Debian 11 and Ubuntu 22.04.

SUPPORTED KEYRING FILES
       apt-key supports only the binary OpenPGP format (also known as "GPG key public ring") in files with the "gpg" extension, not the keybox database format introduced in newer gpg(1) versions as default for keyring files.
       Binary keyring files intended to be used with any apt version should therefore always be created with gpg --export.

       Alternatively, if all systems which should be using the created keyring have at least apt version >= 1.4 installed, you can use the ASCII armored format with the "asc" extension instead which can be created with gpg --armor
       --export.

COMMANDS
       add filename (deprecated)
           Add a new key to the list of trusted keys. The key is read from the filename given with the parameter filename or if the filename is - from standard input.

           It is critical that keys added manually via apt-key are verified to belong to the owner of the repositories they claim to be for otherwise the apt-secure(8) infrastructure is completely undermined.

           Note: Instead of using this command a keyring should be placed directly in the /etc/apt/trusted.gpg.d/ directory with a descriptive name and either "gpg" or "asc" as file extension.

       del keyid (mostly deprecated)
           Remove a key from the list of trusted keys.

       export keyid (deprecated)
           Output the key keyid to standard output.

       exportall (deprecated)
           Output all trusted keys to standard output.

       list, finger (deprecated)
           List trusted keys with fingerprints.

       adv (deprecated)
           Pass advanced options to gpg. With adv --recv-key you can e.g. download key from keyservers directly into the trusted set of keys. Note that there are no checks performed, so it is easy to completely undermine the apt-
           secure(8) infrastructure if used without care.

       update (deprecated)
           Update the local keyring with the archive keyring and remove from the local keyring the archive keys which are no longer valid. The archive keyring is shipped in the archive-keyring package of your distribution, e.g.
           the ubuntu-keyring package in Ubuntu.

           Note that a distribution does not need to and in fact should not use this command any longer and instead ship keyring files in the /etc/apt/trusted.gpg.d/ directory directly as this avoids a dependency on gnupg and it
           is easier to manage keys by simply adding and removing files for maintainers and users alike.

       net-update (deprecated)
           Perform an update working similarly to the update command above, but get the archive keyring from a URI instead and validate it against a master key. This requires an installed wget(1) and an APT build configured to
 Manual page apt-key(8) line 1 (press h for help or q to quit)