Provided by:
apt_0.8.16~exp5ubuntu13_i386 
NAME
apt-key - APT key management utility
SYNOPSIS
apt-key [--keyring filename] [command] [arguments...]
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
filename, or standard input if filename is -.
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the local keyring the archive keys which are no longer valid.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
Work similar to the update command above, but get the archive
keyring from an 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 and relies 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 specific 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, through 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.
AUTHOR
Jason Gunthorpe
COPYRIGHT
Copyright (C) 1998-2001 Jason Gunthorpe
NOTES
1. APT bug page
http://bugs.debian.org/src:apt