<?xml version="1.0" encoding="utf-8" standalone="no"?> <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [ <!ENTITY % aptent SYSTEM "apt.ent"> %aptent; <!ENTITY % aptverbatiment SYSTEM "apt-verbatim.ent"> %aptverbatiment; ]> <refentry> &apt-docinfo; <refmeta> <refentrytitle>apt-key</refentrytitle> <manvolnum>8</manvolnum> <refmiscinfo class="manual">APT</refmiscinfo> </refmeta> <!-- Man page title --> <refnamediv> <refname>apt-key</refname> <refpurpose>APT key management utility</refpurpose> </refnamediv> <!-- Arguments --> <refsynopsisdiv> <cmdsynopsis> <command>apt-key</command> <arg><option>--keyring <replaceable>filename</replaceable></option></arg> <arg><replaceable>command</replaceable></arg> <arg rep="repeat"><option><replaceable>arguments</replaceable></option></arg> </cmdsynopsis> </refsynopsisdiv> <refsect1><title>Description</title> <para> <command>apt-key</command> 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. </para> </refsect1> <refsect1><title>Commands</title> <variablelist> <varlistentry><term>add <replaceable>filename</replaceable></term> <listitem> <para> Add a new key to the list of trusted keys. The key is read from <replaceable>filename</replaceable>, or standard input if <replaceable>filename</replaceable> is <literal>-</literal>. </para> </listitem> </varlistentry> <varlistentry><term>del <replaceable>keyid</replaceable></term> <listitem> <para> Remove a key from the list of trusted keys. </para> </listitem> </varlistentry> <varlistentry><term>export <replaceable>keyid</replaceable></term> <listitem> <para> Output the key <replaceable>keyid</replaceable> to standard output. </para> </listitem> </varlistentry> <varlistentry><term>exportall</term> <listitem> <para> Output all trusted keys to standard output. </para> </listitem> </varlistentry> <varlistentry><term>list</term> <listitem> <para> List trusted keys. </para> </listitem> </varlistentry> <varlistentry><term>finger</term> <listitem> <para> List fingerprints of trusted keys. </para> </listitem> </varlistentry> <varlistentry><term>adv</term> <listitem> <para> Pass advanced options to gpg. With adv --recv-key you can download the public key. </para> </listitem> </varlistentry> <varlistentry><term>update</term> <listitem> <para> 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 <literal>archive-keyring</literal> package of your distribution, e.g. the <literal>debian-archive-keyring</literal> package in Debian. </para> </listitem> </varlistentry> <varlistentry><term>net-update</term> <listitem> <para> Work similar to the <command>update</command> command above, but get the archive keyring from an URI instead and validate it against a master key. This requires an installed &wget; 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 <command>update</command> instead, but Ubuntu's APT does. </para> </listitem> </varlistentry> </variablelist> </refsect1> <refsect1><title>Options</title> <para>Note that options need to be defined before the commands described in the previous section.</para> <variablelist> <varlistentry><term>--keyring <replaceable>filename</replaceable></term> <listitem><para>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 <filename>trusted.gpg</filename> file as well as on all parts in the <filename>trusted.gpg.d</filename> directory, through <filename>trusted.gpg</filename> is the primary keyring which means that e.g. new keys are added to this one. </para></listitem> </varlistentry> </variablelist> </refsect1> <refsect1><title>Files</title> <variablelist> &file-trustedgpg; <varlistentry><term><filename>/etc/apt/trustdb.gpg</filename></term> <listitem><para>Local trust database of archive keys.</para></listitem> </varlistentry> <varlistentry><term><filename>/usr/share/keyrings/debian-archive-keyring.gpg</filename></term> <listitem><para>Keyring of Debian archive trusted keys.</para></listitem> </varlistentry> <varlistentry><term><filename>/usr/share/keyrings/debian-archive-removed-keys.gpg</filename></term> <listitem><para>Keyring of Debian archive removed trusted keys.</para></listitem> </varlistentry> </variablelist> </refsect1> <refsect1><title>See Also</title> <para> &apt-get;, &apt-secure; </para> </refsect1> &manbugs; &manauthor; </refentry>