Provided by: apt_1.2.35_amd64 bug


       apt-key - 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.


       add filename
           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.

       del keyid
           Remove a key from the list of trusted keys.

       export keyid
           Output the key keyid to standard output.

           Output all trusted keys to standard output.

           List trusted keys.

           List fingerprints of trusted keys.

           Pass advanced options to gpg. With adv --recv-key you can e.g. download key from
           keyservers directly into the 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 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           the archive keys which are no longer valid.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

           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
           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.


           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.

           Local trust database of archive keys.

           Keyring of Ubuntu archive trusted keys.

           Keyring of Ubuntu archive removed trusted keys.


       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