%aptent; %aptverbatiment; %aptvendor; ]> &apt-author.jgunthorpe; &apt-author.team; &apt-email; &apt-product; 2015-10-15T00:00:00Z apt-key 8 APT apt-key APT key management utility &synopsis-command-apt-key; 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 &synopsis-param-filename; Add a new key to the list of trusted keys. The key is read from the filename given with the parameter &synopsis-param-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; infrastructure is completely undermined. del &synopsis-param-keyid; Remove a key from the list of trusted keys. export &synopsis-param-keyid; Output the key &synopsis-param-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 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; infrastructure if used without care. update Update the local keyring with the archive keyring and remove from the local keyring the archive keys which are no longer valid.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 &keyring-package; package in &keyring-distro;. net-update 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; 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 section. --keyring &synopsis-param-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. &file-trustedgpg; /etc/apt/trustdb.gpg Local trust database of archive keys. &keyring-filename; Keyring of &keyring-distro; archive trusted keys. &keyring-removed-filename; Keyring of &keyring-distro; archive removed trusted keys. &apt-get;, &apt-secure; &manbugs; &manauthor;