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  • Committer: Teddy Hogeborn
  • Date: 2024-09-12 18:31:12 UTC
  • mfrom: (237.4.142 release)
  • Revision ID: teddy@recompile.se-20240912183112-xxy0akg67c0ky0t8
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mandos-keygen.xml
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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        "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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<!ENTITY VERSION "1.0">
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<!ENTITY COMMANDNAME "mandos-keygen">
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<!ENTITY TIMESTAMP "2008-08-31">
 
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<!ENTITY TIMESTAMP "2019-07-18">
 
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<!ENTITY % common SYSTEM "common.ent">
 
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%common;
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]>
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<refentry xmlns:xi="http://www.w3.org/2001/XInclude">
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    <title>Mandos Manual</title>
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    <!-- NWalsh’s docbook scripts use this to generate the footer: -->
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    <productname>Mandos</productname>
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    <productnumber>&VERSION;</productnumber>
 
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    <productnumber>&version;</productnumber>
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    <date>&TIMESTAMP;</date>
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    <authorgroup>
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      <author>
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        <firstname>Björn</firstname>
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        <surname>Påhlsson</surname>
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        <address>
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          <email>belorn@fukt.bsnet.se</email>
 
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          <email>belorn@recompile.se</email>
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        </address>
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      </author>
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      <author>
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        <firstname>Teddy</firstname>
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        <surname>Hogeborn</surname>
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        <address>
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          <email>teddy@fukt.bsnet.se</email>
 
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          <email>teddy@recompile.se</email>
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        </address>
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      </author>
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    </authorgroup>
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    <copyright>
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      <year>2008</year>
 
35
      <year>2009</year>
 
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      <year>2010</year>
 
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      <year>2011</year>
 
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      <year>2012</year>
 
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      <year>2013</year>
 
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      <year>2014</year>
 
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      <year>2015</year>
 
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      <year>2016</year>
 
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      <year>2017</year>
 
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      <year>2018</year>
 
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      <year>2019</year>
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      <holder>Teddy Hogeborn</holder>
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      <holder>Björn Påhlsson</holder>
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    </copyright>
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    <legalnotice>
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      <para>
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        This manual page is free software: you can redistribute it
40
 
        and/or modify it under the terms of the GNU General Public
41
 
        License as published by the Free Software Foundation,
42
 
        either version 3 of the License, or (at your option) any
43
 
        later version.
44
 
      </para>
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      <para>
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        This manual page is distributed in the hope that it will
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        be useful, but WITHOUT ANY WARRANTY; without even the
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        implied warranty of MERCHANTABILITY or FITNESS FOR A
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        PARTICULAR PURPOSE.  See the GNU General Public License
51
 
        for more details.
52
 
      </para>
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54
 
      <para>
55
 
        You should have received a copy of the GNU General Public
56
 
        License along with this program; If not, see
57
 
        <ulink url="http://www.gnu.org/licenses/"/>.
58
 
      </para>
59
 
    </legalnotice>
 
49
    <xi:include href="legalnotice.xml"/>
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  </refentryinfo>
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51
  
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  <refmeta>
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    <refentrytitle>&COMMANDNAME;</refentrytitle>
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    <manvolnum>8</manvolnum>
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  <refnamediv>
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    <refname><command>&COMMANDNAME;</command></refname>
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    <refpurpose>
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      Generate keys for <citerefentry><refentrytitle>password-request
71
 
      </refentrytitle><manvolnum>8mandos</manvolnum></citerefentry>
 
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      Generate key and password for Mandos client and server.
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    </refpurpose>
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  </refnamediv>
74
 
 
 
63
  
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  <refsynopsisdiv>
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    <cmdsynopsis>
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      <command>&COMMANDNAME;</command>
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        <replaceable>TIME</replaceable></option></arg>
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      </group>
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129
      <sbr/>
141
 
      <arg><option>--force</option></arg>
 
130
      <group>
 
131
        <arg choice="plain"><option>--tls-keytype
 
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        <replaceable>KEYTYPE</replaceable></option></arg>
 
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        <arg choice="plain"><option>-T
 
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        <replaceable>KEYTYPE</replaceable></option></arg>
 
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      </group>
 
136
      <sbr/>
 
137
      <group>
 
138
        <arg choice="plain"><option>--force</option></arg>
 
139
        <arg choice="plain"><option>-f</option></arg>
 
140
      </group>
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    </cmdsynopsis>
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    <cmdsynopsis>
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      <command>&COMMANDNAME;</command>
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      <group choice="req">
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        <arg choice="plain"><option>--password</option></arg>
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146
        <arg choice="plain"><option>-p</option></arg>
 
147
        <arg choice="plain"><option>--passfile
 
148
        <replaceable>FILE</replaceable></option></arg>
 
149
        <arg choice="plain"><option>-F</option>
 
150
        <replaceable>FILE</replaceable></arg>
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      </group>
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      <sbr/>
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      <group>
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        <arg choice="plain"><option>-n
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        <replaceable>NAME</replaceable></option></arg>
162
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      </group>
 
166
      <group>
 
167
        <arg choice="plain"><option>--no-ssh</option></arg>
 
168
        <arg choice="plain"><option>-S</option></arg>
 
169
      </group>
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    </cmdsynopsis>
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    <cmdsynopsis>
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      <command>&COMMANDNAME;</command>
176
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      </group>
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    </cmdsynopsis>
178
185
  </refsynopsisdiv>
179
 
 
 
186
  
180
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  <refsect1 id="description">
181
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    <title>DESCRIPTION</title>
182
189
    <para>
183
190
      <command>&COMMANDNAME;</command> is a program to generate the
184
 
      OpenPGP keys used by
185
 
      <citerefentry><refentrytitle>password-request</refentrytitle>
 
191
      TLS and OpenPGP keys used by
 
192
      <citerefentry><refentrytitle>mandos-client</refentrytitle>
186
193
      <manvolnum>8mandos</manvolnum></citerefentry>.  The keys are
187
 
      normally written to /etc/mandos for later installation into the
188
 
      initrd image, but this, like most things, can be changed with
189
 
      command line options.
 
194
      normally written to /etc/keys/mandos for later installation into
 
195
      the initrd image, but this, and most other things, can be
 
196
      changed with command line options.
190
197
    </para>
191
198
    <para>
192
 
      It can also be used to generate ready-made sections for
 
199
      This program can also be used with the
 
200
      <option>--password</option> or <option>--passfile</option>
 
201
      options to generate a ready-made section for
 
202
      <filename>clients.conf</filename> (see
193
203
      <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
194
 
      <manvolnum>5</manvolnum></citerefentry> using the
195
 
      <option>--password</option> option.
 
204
      <manvolnum>5</manvolnum></citerefentry>).
196
205
    </para>
197
206
  </refsect1>
198
207
  
199
208
  <refsect1 id="purpose">
200
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    <title>PURPOSE</title>
201
 
 
202
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    <para>
203
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      The purpose of this is to enable <emphasis>remote and unattended
204
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      rebooting</emphasis> of client host computer with an
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      <emphasis>encrypted root file system</emphasis>.  See <xref
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      linkend="overview"/> for details.
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    </para>
208
 
 
209
216
  </refsect1>
210
217
  
211
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  <refsect1 id="options">
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    <title>OPTIONS</title>
213
 
 
 
220
    
214
221
    <variablelist>
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      <varlistentry>
216
 
        <term><literal>-h</literal>, <literal>--help</literal></term>
 
223
        <term><option>--help</option></term>
 
224
        <term><option>-h</option></term>
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        <listitem>
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          <para>
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            Show a help message and exit
220
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          </para>
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        </listitem>
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      </varlistentry>
223
 
 
224
 
      <varlistentry>
225
 
        <term><literal>-d</literal>, <literal>--dir
226
 
        <replaceable>directory</replaceable></literal></term>
227
 
        <listitem>
228
 
          <para>
229
 
            Target directory for key files.  Default is
230
 
            <filename>/etc/mandos</filename>.
231
 
          </para>
232
 
        </listitem>
233
 
      </varlistentry>
234
 
 
235
 
      <varlistentry>
236
 
        <term><literal>-t</literal>, <literal>--type
237
 
        <replaceable>type</replaceable></literal></term>
238
 
        <listitem>
239
 
          <para>
240
 
            Key type.  Default is <quote>DSA</quote>.
241
 
          </para>
242
 
        </listitem>
243
 
      </varlistentry>
244
 
 
245
 
      <varlistentry>
246
 
        <term><literal>-l</literal>, <literal>--length
247
 
        <replaceable>bits</replaceable></literal></term>
248
 
        <listitem>
249
 
          <para>
250
 
            Key length in bits.  Default is 2048.
251
 
          </para>
252
 
        </listitem>
253
 
      </varlistentry>
254
 
 
255
 
      <varlistentry>
256
 
        <term><literal>-s</literal>, <literal>--subtype
257
 
        <replaceable>type</replaceable></literal></term>
258
 
        <listitem>
259
 
          <para>
260
 
            Subkey type.  Default is <quote>ELG-E</quote> (Elgamal
261
 
            encryption-only).
262
 
          </para>
263
 
        </listitem>
264
 
      </varlistentry>
265
 
 
266
 
      <varlistentry>
267
 
        <term><literal>-L</literal>, <literal>--sublength
268
 
        <replaceable>bits</replaceable></literal></term>
269
 
        <listitem>
270
 
          <para>
271
 
            Subkey length in bits.  Default is 2048.
272
 
          </para>
273
 
        </listitem>
274
 
      </varlistentry>
275
 
 
276
 
      <varlistentry>
277
 
        <term><literal>-e</literal>, <literal>--email</literal>
278
 
        <replaceable>address</replaceable></term>
 
231
      
 
232
      <varlistentry>
 
233
        <term><option>--dir
 
234
        <replaceable>DIRECTORY</replaceable></option></term>
 
235
        <term><option>-d
 
236
        <replaceable>DIRECTORY</replaceable></option></term>
 
237
        <listitem>
 
238
          <para>
 
239
            Target directory for key files.  Default is <filename
 
240
            class="directory">/etc/keys/mandos</filename>.
 
241
          </para>
 
242
        </listitem>
 
243
      </varlistentry>
 
244
      
 
245
      <varlistentry>
 
246
        <term><option>--type
 
247
        <replaceable>TYPE</replaceable></option></term>
 
248
        <term><option>-t
 
249
        <replaceable>TYPE</replaceable></option></term>
 
250
        <listitem>
 
251
          <para>
 
252
            OpenPGP key type.  Default is <quote>RSA</quote>.
 
253
          </para>
 
254
        </listitem>
 
255
      </varlistentry>
 
256
      
 
257
      <varlistentry>
 
258
        <term><option>--length
 
259
        <replaceable>BITS</replaceable></option></term>
 
260
        <term><option>-l
 
261
        <replaceable>BITS</replaceable></option></term>
 
262
        <listitem>
 
263
          <para>
 
264
            OpenPGP key length in bits.  Default is 4096.
 
265
          </para>
 
266
        </listitem>
 
267
      </varlistentry>
 
268
      
 
269
      <varlistentry>
 
270
        <term><option>--subtype
 
271
        <replaceable>KEYTYPE</replaceable></option></term>
 
272
        <term><option>-s
 
273
        <replaceable>KEYTYPE</replaceable></option></term>
 
274
        <listitem>
 
275
          <para>
 
276
            OpenPGP subkey type.  Default is <quote>RSA</quote>
 
277
          </para>
 
278
        </listitem>
 
279
      </varlistentry>
 
280
      
 
281
      <varlistentry>
 
282
        <term><option>--sublength
 
283
        <replaceable>BITS</replaceable></option></term>
 
284
        <term><option>-L
 
285
        <replaceable>BITS</replaceable></option></term>
 
286
        <listitem>
 
287
          <para>
 
288
            OpenPGP subkey length in bits.  Default is 4096.
 
289
          </para>
 
290
        </listitem>
 
291
      </varlistentry>
 
292
      
 
293
      <varlistentry>
 
294
        <term><option>--email
 
295
        <replaceable>ADDRESS</replaceable></option></term>
 
296
        <term><option>-e
 
297
        <replaceable>ADDRESS</replaceable></option></term>
279
298
        <listitem>
280
299
          <para>
281
300
            Email address of key.  Default is empty.
282
301
          </para>
283
302
        </listitem>
284
303
      </varlistentry>
285
 
 
 
304
      
286
305
      <varlistentry>
287
 
        <term><literal>-c</literal>, <literal>--comment</literal>
288
 
        <replaceable>comment</replaceable></term>
 
306
        <term><option>--comment
 
307
        <replaceable>TEXT</replaceable></option></term>
 
308
        <term><option>-c
 
309
        <replaceable>TEXT</replaceable></option></term>
289
310
        <listitem>
290
311
          <para>
291
 
            Comment field for key.  The default value is
292
 
            <quote><literal>Mandos client key</literal></quote>.
 
312
            Comment field for key.  Default is empty.
293
313
          </para>
294
314
        </listitem>
295
315
      </varlistentry>
296
 
 
 
316
      
297
317
      <varlistentry>
298
 
        <term><literal>-x</literal>, <literal>--expire</literal>
299
 
        <replaceable>time</replaceable></term>
 
318
        <term><option>--expire
 
319
        <replaceable>TIME</replaceable></option></term>
 
320
        <term><option>-x
 
321
        <replaceable>TIME</replaceable></option></term>
300
322
        <listitem>
301
323
          <para>
302
324
            Key expire time.  Default is no expiration.  See
305
327
          </para>
306
328
        </listitem>
307
329
      </varlistentry>
308
 
 
309
 
      <varlistentry>
310
 
        <term><literal>-f</literal>, <literal>--force</literal></term>
311
 
        <listitem>
312
 
          <para>
313
 
            Force overwriting old keys.
314
 
          </para>
315
 
        </listitem>
316
 
      </varlistentry>
317
 
      <varlistentry>
318
 
        <term><literal>-p</literal>, <literal>--password</literal
319
 
        ></term>
 
330
      
 
331
      <varlistentry>
 
332
        <term><option>--tls-keytype
 
333
        <replaceable>KEYTYPE</replaceable></option></term>
 
334
        <term><option>-T
 
335
        <replaceable>KEYTYPE</replaceable></option></term>
 
336
        <listitem>
 
337
          <para>
 
338
            TLS key type.  Default is <quote>ed25519</quote>
 
339
          </para>
 
340
        </listitem>
 
341
      </varlistentry>
 
342
      
 
343
      <varlistentry>
 
344
        <term><option>--force</option></term>
 
345
        <term><option>-f</option></term>
 
346
        <listitem>
 
347
          <para>
 
348
            Force overwriting old key.
 
349
          </para>
 
350
        </listitem>
 
351
      </varlistentry>
 
352
      <varlistentry>
 
353
        <term><option>--password</option></term>
 
354
        <term><option>-p</option></term>
320
355
        <listitem>
321
356
          <para>
322
357
            Prompt for a password and encrypt it with the key already
323
 
            present in either <filename>/etc/mandos</filename> or the
324
 
            directory specified with the <option>--dir</option>
 
358
            present in either <filename>/etc/keys/mandos</filename> or
 
359
            the directory specified with the <option>--dir</option>
325
360
            option.  Outputs, on standard output, a section suitable
326
361
            for inclusion in <citerefentry><refentrytitle
327
362
            >mandos-clients.conf</refentrytitle><manvolnum
328
363
            >8</manvolnum></citerefentry>.  The host name or the name
329
364
            specified with the <option>--name</option> option is used
330
365
            for the section header.  All other options are ignored,
331
 
            and no keys are created.
 
366
            and no key is created.  Note: white space is stripped from
 
367
            the beginning and from the end of the password; See <xref
 
368
            linkend="bugs"/>.
 
369
          </para>
 
370
        </listitem>
 
371
      </varlistentry>
 
372
      <varlistentry>
 
373
        <term><option>--passfile
 
374
        <replaceable>FILE</replaceable></option></term>
 
375
        <term><option>-F
 
376
        <replaceable>FILE</replaceable></option></term>
 
377
        <listitem>
 
378
          <para>
 
379
            The same as <option>--password</option>, but read from
 
380
            <replaceable>FILE</replaceable>, not the terminal, and
 
381
            white space is not stripped from the password in any way.
 
382
          </para>
 
383
        </listitem>
 
384
      </varlistentry>
 
385
      <varlistentry>
 
386
        <term><option>--no-ssh</option></term>
 
387
        <term><option>-S</option></term>
 
388
        <listitem>
 
389
          <para>
 
390
            When <option>--password</option> or
 
391
            <option>--passfile</option> is given, this option will
 
392
            prevent <command>&COMMANDNAME;</command> from calling
 
393
            <command>ssh-keyscan</command> to get an SSH fingerprint
 
394
            for this host and, if successful, output suitable config
 
395
            options to use this fingerprint as a
 
396
            <option>checker</option> option in the output.  This is
 
397
            otherwise the default behavior.
332
398
          </para>
333
399
        </listitem>
334
400
      </varlistentry>
335
401
    </variablelist>
336
402
  </refsect1>
337
 
 
 
403
  
338
404
  <refsect1 id="overview">
339
405
    <title>OVERVIEW</title>
340
406
    <xi:include href="overview.xml"/>
341
407
    <para>
342
 
      This program is a small utility to generate new OpenPGP keys for
343
 
      new Mandos clients.
 
408
      This program is a small utility to generate new TLS and OpenPGP
 
409
      keys for new Mandos clients, and to generate sections for
 
410
      inclusion in <filename>clients.conf</filename> on the server.
344
411
    </para>
345
412
  </refsect1>
346
 
 
 
413
  
347
414
  <refsect1 id="exit_status">
348
415
    <title>EXIT STATUS</title>
349
416
    <para>
350
 
      The exit status will be 0 if new keys were successfully created,
351
 
      otherwise not.
 
417
      The exit status will be 0 if a new key (or password, if the
 
418
      <option>--password</option> option was used) was successfully
 
419
      created, otherwise not.
352
420
    </para>
353
421
  </refsect1>
354
422
  
368
436
    </variablelist>
369
437
  </refsect1>
370
438
  
371
 
  <refsect1 id="file">
 
439
  <refsect1 id="files">
372
440
    <title>FILES</title>
373
441
    <para>
374
442
      Use the <option>--dir</option> option to change where
377
445
    </para>
378
446
    <variablelist>
379
447
      <varlistentry>
380
 
        <term><filename>/etc/mandos/seckey.txt</filename></term>
 
448
        <term><filename>/etc/keys/mandos/seckey.txt</filename></term>
381
449
        <listitem>
382
450
          <para>
383
451
            OpenPGP secret key file which will be created or
386
454
        </listitem>
387
455
      </varlistentry>
388
456
      <varlistentry>
389
 
        <term><filename>/etc/mandos/pubkey.txt</filename></term>
 
457
        <term><filename>/etc/keys/mandos/pubkey.txt</filename></term>
390
458
        <listitem>
391
459
          <para>
392
460
            OpenPGP public key file which will be created or
395
463
        </listitem>
396
464
      </varlistentry>
397
465
      <varlistentry>
398
 
        <term><filename>/tmp</filename></term>
 
466
        <term><filename>/etc/keys/mandos/tls-privkey.pem</filename></term>
 
467
        <listitem>
 
468
          <para>
 
469
            Private key file which will be created or overwritten.
 
470
          </para>
 
471
        </listitem>
 
472
      </varlistentry>
 
473
      <varlistentry>
 
474
        <term><filename>/etc/keys/mandos/tls-pubkey.pem</filename></term>
 
475
        <listitem>
 
476
          <para>
 
477
            Public key file which will be created or overwritten.
 
478
          </para>
 
479
        </listitem>
 
480
      </varlistentry>
 
481
      <varlistentry>
 
482
        <term><filename class="directory">/tmp</filename></term>
399
483
        <listitem>
400
484
          <para>
401
485
            Temporary files will be written here if
405
489
      </varlistentry>
406
490
    </variablelist>
407
491
  </refsect1>
408
 
 
 
492
  
409
493
  <refsect1 id="bugs">
410
494
    <title>BUGS</title>
411
495
    <para>
412
 
      None are known at this time.
 
496
      The <option>--password</option>/<option>-p</option> option
 
497
      strips white space from the start and from the end of the
 
498
      password before using it.  If this is a problem, use the
 
499
      <option>--passfile</option> option instead, which does not do
 
500
      this.
413
501
    </para>
 
502
    <xi:include href="bugs.xml"/>
414
503
  </refsect1>
415
 
 
 
504
  
416
505
  <refsect1 id="example">
417
506
    <title>EXAMPLE</title>
418
507
    <informalexample>
425
514
    </informalexample>
426
515
    <informalexample>
427
516
      <para>
428
 
        Create keys in another directory and of another type.  Force
 
517
        Create key in another directory and of another type.  Force
429
518
        overwriting old key files:
430
519
      </para>
431
520
      <para>
435
524
 
436
525
      </para>
437
526
    </informalexample>
 
527
    <informalexample>
 
528
      <para>
 
529
        Prompt for a password, encrypt it with the keys in <filename
 
530
        class="directory">/etc/keys/mandos</filename> and output a
 
531
        section suitable for <filename>clients.conf</filename>.
 
532
      </para>
 
533
      <para>
 
534
        <userinput>&COMMANDNAME; --password</userinput>
 
535
      </para>
 
536
    </informalexample>
 
537
    <informalexample>
 
538
      <para>
 
539
        Prompt for a password, encrypt it with the keys in the
 
540
        <filename>client-key</filename> directory and output a section
 
541
        suitable for <filename>clients.conf</filename>.
 
542
      </para>
 
543
      <para>
 
544
 
 
545
<!-- do not wrap this line -->
 
546
<userinput>&COMMANDNAME; --password --dir client-key</userinput>
 
547
 
 
548
      </para>
 
549
    </informalexample>
438
550
  </refsect1>
439
 
 
 
551
  
440
552
  <refsect1 id="security">
441
553
    <title>SECURITY</title>
442
554
    <para>
443
555
      The <option>--type</option>, <option>--length</option>,
444
556
      <option>--subtype</option>, and <option>--sublength</option>
445
 
      options can be used to create keys of insufficient security.  If
446
 
      in doubt, leave them to the default values.
 
557
      options can be used to create keys of low security.  If in
 
558
      doubt, leave them to the default values.
447
559
    </para>
448
560
    <para>
449
 
      The key expire time is not guaranteed to be honored by
450
 
      <citerefentry><refentrytitle>mandos</refentrytitle>
 
561
      The key expire time is <emphasis>not</emphasis> guaranteed to be
 
562
      honored by <citerefentry><refentrytitle>mandos</refentrytitle>
451
563
      <manvolnum>8</manvolnum></citerefentry>.
452
564
    </para>
453
565
  </refsect1>
454
 
 
 
566
  
455
567
  <refsect1 id="see_also">
456
568
    <title>SEE ALSO</title>
457
569
    <para>
 
570
      <citerefentry><refentrytitle>intro</refentrytitle>
 
571
      <manvolnum>8mandos</manvolnum></citerefentry>,
458
572
      <citerefentry><refentrytitle>gpg</refentrytitle>
459
573
      <manvolnum>1</manvolnum></citerefentry>,
 
574
      <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
 
575
      <manvolnum>5</manvolnum></citerefentry>,
460
576
      <citerefentry><refentrytitle>mandos</refentrytitle>
461
577
      <manvolnum>8</manvolnum></citerefentry>,
462
 
      <citerefentry><refentrytitle>password-request</refentrytitle>
463
 
      <manvolnum>8mandos</manvolnum></citerefentry>
 
578
      <citerefentry><refentrytitle>mandos-client</refentrytitle>
 
579
      <manvolnum>8mandos</manvolnum></citerefentry>,
 
580
      <citerefentry><refentrytitle>ssh-keyscan</refentrytitle>
 
581
      <manvolnum>1</manvolnum></citerefentry>
464
582
    </para>
465
583
  </refsect1>
466
584