Provided by: apt_2.7.14build2_amd64 bug


       apt-key - Deprecated APT key management utility


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


       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 12 and Ubuntu 24.04.


       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.


       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

           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 have a server to fetch from and a
           master keyring to validate. APT in Debian does not support this command, relying on
           update instead, but Ubuntu's APT does.


       Note that options need to be defined before the commands described in the previous

       --keyring filename (deprecated)
           With this option it is possible to specify a particular keyring file the command
           should operate on. The default is that a command is executed on the trusted.gpg file
           as well as on all parts in the trusted.gpg.d directory, though trusted.gpg is the
           primary keyring which means that e.g. new keys are added to this one.


       Except for using apt-key del in maintainer scripts, the use of apt-key is deprecated. This
       section shows how to replace existing use of apt-key.

       If your existing use of apt-key add looks like this:

       wget -qO- https://myrepo.example/myrepo.asc | sudo apt-key add -

       Then you can directly replace this with (though note the recommendation below):

       wget -qO- https://myrepo.example/myrepo.asc | sudo tee /etc/apt/trusted.gpg.d/myrepo.asc

       Make sure to use the "asc" extension for ASCII armored keys and the "gpg" extension for
       the binary OpenPGP format (also known as "GPG key public ring"). The binary OpenPGP format
       works for all apt versions, while the ASCII armored format works for apt version >= 1.4.

       Recommended: Instead of placing keys into the /etc/apt/trusted.gpg.d directory, you can
       place them anywhere on your filesystem by using the Signed-By option in your sources.list
       and pointing to the filename of the key. See sources.list(5) for details. Since APT 2.4,
       /etc/apt/keyrings is provided as the recommended location for keys not managed by
       packages. When using a deb822-style sources.list, and with apt version >= 2.4, the
       Signed-By option can also be used to include the full ASCII armored keyring directly in
       the sources.list without an additional file.


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

           File fragments for the trusted keys, additional keyrings can be stored here (by other
           packages or the administrator). Configuration Item Dir::Etc::TrustedParts.

           Place to store additional keyrings to be used with Signed-By.


       apt-get(8), apt-secure(8)


       APT bug page[1]. If you wish to report a bug in APT, please see
       /usr/share/doc/debian/bug-reporting.txt or the reportbug(1) command.


       APT was written by the APT team <>.


       Jason Gunthorpe

       APT team


        1. APT bug page