%aptent; ]> &apt-docinfo; apt-key 8 APT apt-key APT key management utility apt-key command/ arguments 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 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the local keyring with the keyring of Debian archive keys and removes from the keyring the archive keys which are no longer valid. /etc/apt/trusted.gpg Keyring of local trusted keys, new keys will be added here. /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. &apt-get;, &apt-secure; &manbugs; &manauthor;