debian man page for apt-key

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

NAME
       apt-key - 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.

COMMANDS
       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.

       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	   Update the local keyring with the archive keyring and remove from the local keyring the archive keys which are no longer valid.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 debian-archive-keyring package in Debian.

       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(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.

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

       --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.

FILES
       /etc/apt/trusted.gpg
	   Keyring of local trusted keys, new keys will be added here. Configuration Item: Dir::Etc::Trusted.

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

       /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(8), apt-secure(8)

BUGS
       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.

AUTHOR
       APT was written by the APT team <apt@packages.debian.org>.

AUTHORS
       Jason Gunthorpe

       APT team

NOTES
	1. APT bug page
	   http://bugs.debian.org/src:apt

APT 0.9.7.9							   09 June 2012 							APT-KEY(8)