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apt-key(8) - phpMan

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the archive keys which are no longer valid.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.