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1 <?xml version="1.0" encoding="utf-8" standalone="no"?>
2 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
3 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
4
5 <!ENTITY % aptent SYSTEM "apt.ent">
6 %aptent;
7
8 <!ENTITY % aptverbatiment SYSTEM "apt-verbatim.ent">
9 %aptverbatiment;
10
11 ]>
12
13 <refentry>
14 &apt-docinfo;
15
16 <refmeta>
17 <refentrytitle>apt-key</refentrytitle>
18 <manvolnum>8</manvolnum>
19 <refmiscinfo class="manual">APT</refmiscinfo>
20 </refmeta>
21
22 <!-- Man page title -->
23 <refnamediv>
24 <refname>apt-key</refname>
25 <refpurpose>APT key management utility</refpurpose>
26 </refnamediv>
27
28 <!-- Arguments -->
29 <refsynopsisdiv>
30 <cmdsynopsis>
31 <command>apt-key</command>
32 <arg><option>--keyring <replaceable>filename</replaceable></option></arg>
33 <arg><replaceable>command</replaceable></arg>
34 <arg rep="repeat"><option><replaceable>arguments</replaceable></option></arg>
35 </cmdsynopsis>
36 </refsynopsisdiv>
37
38 <refsect1><title>Description</title>
39 <para>
40 <command>apt-key</command> is used to manage the list of keys used
41 by apt to authenticate packages. Packages which have been
42 authenticated using these keys will be considered trusted.
43 </para>
44 </refsect1>
45
46 <refsect1><title>Commands</title>
47 <variablelist>
48 <varlistentry><term>add <replaceable>filename</replaceable></term>
49 <listitem>
50 <para>
51
52 Add a new key to the list of trusted keys. The key is read
53 from <replaceable>filename</replaceable>, or standard input if
54 <replaceable>filename</replaceable> is <literal>-</literal>.
55 </para>
56
57 </listitem>
58 </varlistentry>
59
60 <varlistentry><term>del <replaceable>keyid</replaceable></term>
61 <listitem>
62 <para>
63
64 Remove a key from the list of trusted keys.
65
66 </para>
67
68 </listitem>
69 </varlistentry>
70
71 <varlistentry><term>export <replaceable>keyid</replaceable></term>
72 <listitem>
73 <para>
74
75 Output the key <replaceable>keyid</replaceable> to standard output.
76
77 </para>
78
79 </listitem>
80 </varlistentry>
81
82 <varlistentry><term>exportall</term>
83 <listitem>
84 <para>
85
86 Output all trusted keys to standard output.
87
88 </para>
89
90 </listitem>
91 </varlistentry>
92
93 <varlistentry><term>list</term>
94 <listitem>
95 <para>
96
97 List trusted keys.
98
99 </para>
100
101 </listitem>
102 </varlistentry>
103
104 <varlistentry><term>finger</term>
105 <listitem>
106 <para>
107
108 List fingerprints of trusted keys.
109
110 </para>
111
112 </listitem>
113 </varlistentry>
114
115 <varlistentry><term>adv</term>
116 <listitem>
117 <para>
118
119 Pass advanced options to gpg. With adv --recv-key you can download the
120 public key.
121
122 </para>
123
124 </listitem>
125 </varlistentry>
126
127 <varlistentry><term>update</term>
128 <listitem>
129 <para>
130
131 Update the local keyring with the archive keyring and remove from
132 the local keyring the archive keys which are no longer valid.
133 The archive keyring is shipped in the <literal>archive-keyring</literal> package of your
134 distribution, e.g. the <literal>debian-archive-keyring</literal> package in Debian.
135
136 </para>
137
138 </listitem>
139 </varlistentry>
140
141 <varlistentry><term>net-update</term>
142 <listitem>
143 <para>
144
145 Work similar to the <command>update</command> command above, but get the
146 archive keyring from an URI instead and validate it against a master key.
147
148 This requires an installed &wget; and an APT build configured to have
149 a server to fetch from and a master keyring to validate.
150
151 APT in Debian does not support this command and relies on
152 <command>update</command> instead, but Ubuntu's APT does.
153
154 </para>
155
156 </listitem>
157 </varlistentry>
158 </variablelist>
159 </refsect1>
160
161 <refsect1><title>Options</title>
162 <para>Note that options need to be defined before the commands described in the previous section.</para>
163 <variablelist>
164 <varlistentry><term>--keyring <replaceable>filename</replaceable></term>
165 <listitem><para>With this option it is possible to specify a specific keyring
166 file the command should operate on. The default is that a command is executed
167 on the <filename>trusted.gpg</filename> file as well as on all parts in the
168 <filename>trusted.gpg.d</filename> directory, through <filename>trusted.gpg</filename>
169 is the primary keyring which means that e.g. new keys are added to this one.
170 </para></listitem>
171 </varlistentry>
172 </variablelist>
173 </refsect1>
174
175 <refsect1><title>Files</title>
176 <variablelist>
177
178 &file-trustedgpg;
179
180 <varlistentry><term><filename>/etc/apt/trustdb.gpg</filename></term>
181 <listitem><para>Local trust database of archive keys.</para></listitem>
182 </varlistentry>
183
184 <varlistentry><term><filename>/usr/share/keyrings/debian-archive-keyring.gpg</filename></term>
185 <listitem><para>Keyring of Debian archive trusted keys.</para></listitem>
186 </varlistentry>
187
188 <varlistentry><term><filename>/usr/share/keyrings/debian-archive-removed-keys.gpg</filename></term>
189 <listitem><para>Keyring of Debian archive removed trusted keys.</para></listitem>
190 </varlistentry>
191
192 </variablelist>
193
194 </refsect1>
195
196 <refsect1><title>See Also</title>
197 <para>
198 &apt-get;, &apt-secure;
199 </para>
200 </refsect1>
201
202 &manbugs;
203 &manauthor;
204
205 </refentry>
206