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.

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.

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(8) 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Update the local keyring with the archive keyring and remove from the local keyring the archive keys which are no longer valid.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 ubuntu-keyring package in Ubuntu.

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/ubuntu-archive-keyring.gpg

Keyring of Ubuntu archive trusted keys.

/usr/share/keyrings/ubuntu-archive-removed-keys.gpg

Keyring of Ubuntu archive removed trusted keys.

SEE ALSO

apt-get(8), apt-secure(8)

BUGS

m[blue]APT bug pagem[]

AUTHOR

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

AUTHORS

Jason Gunthorpe

APT team

NOTES

1.

APT bug page

bugs.debian.org/src:apt