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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 COMMANDNAME "mandos-keygen">
5
 
<!ENTITY TIMESTAMP "2015-07-20">
6
 
<!ENTITY % common SYSTEM "common.ent">
7
 
%common;
8
 
]>
9
 
 
10
 
<refentry xmlns:xi="http://www.w3.org/2001/XInclude">
11
 
  <refentryinfo>
12
 
    <title>Mandos Manual</title>
13
 
    <!-- NWalsh’s docbook scripts use this to generate the footer: -->
14
 
    <productname>Mandos</productname>
15
 
    <productnumber>&version;</productnumber>
16
 
    <date>&TIMESTAMP;</date>
17
 
    <authorgroup>
18
 
      <author>
19
 
        <firstname>Björn</firstname>
20
 
        <surname>Påhlsson</surname>
21
 
        <address>
22
 
          <email>belorn@recompile.se</email>
23
 
        </address>
24
 
      </author>
25
 
      <author>
26
 
        <firstname>Teddy</firstname>
27
 
        <surname>Hogeborn</surname>
28
 
        <address>
29
 
          <email>teddy@recompile.se</email>
30
 
        </address>
31
 
      </author>
32
 
    </authorgroup>
33
 
    <copyright>
34
 
      <year>2008</year>
35
 
      <year>2009</year>
36
 
      <year>2010</year>
37
 
      <year>2011</year>
38
 
      <year>2012</year>
39
 
      <year>2013</year>
40
 
      <year>2014</year>
41
 
      <year>2015</year>
42
 
      <holder>Teddy Hogeborn</holder>
43
 
      <holder>Björn Påhlsson</holder>
44
 
    </copyright>
45
 
    <xi:include href="legalnotice.xml"/>
46
 
  </refentryinfo>
47
 
  
48
 
  <refmeta>
49
 
    <refentrytitle>&COMMANDNAME;</refentrytitle>
50
 
    <manvolnum>8</manvolnum>
51
 
  </refmeta>
52
 
  
53
 
  <refnamediv>
54
 
    <refname><command>&COMMANDNAME;</command></refname>
55
 
    <refpurpose>
56
 
      Generate key and password for Mandos client and server.
57
 
    </refpurpose>
58
 
  </refnamediv>
59
 
  
60
 
  <refsynopsisdiv>
61
 
    <cmdsynopsis>
62
 
      <command>&COMMANDNAME;</command>
63
 
      <group>
64
 
        <arg choice="plain"><option>--dir
65
 
        <replaceable>DIRECTORY</replaceable></option></arg>
66
 
        <arg choice="plain"><option>-d
67
 
        <replaceable>DIRECTORY</replaceable></option></arg>
68
 
      </group>
69
 
      <sbr/>
70
 
      <group>
71
 
        <arg choice="plain"><option>--type
72
 
        <replaceable>KEYTYPE</replaceable></option></arg>
73
 
        <arg choice="plain"><option>-t
74
 
        <replaceable>KEYTYPE</replaceable></option></arg>
75
 
      </group>
76
 
      <sbr/>
77
 
      <group>
78
 
        <arg choice="plain"><option>--length
79
 
        <replaceable>BITS</replaceable></option></arg>
80
 
        <arg choice="plain"><option>-l
81
 
        <replaceable>BITS</replaceable></option></arg>
82
 
      </group>
83
 
      <sbr/>
84
 
      <group>
85
 
        <arg choice="plain"><option>--subtype
86
 
        <replaceable>KEYTYPE</replaceable></option></arg>
87
 
        <arg choice="plain"><option>-s
88
 
        <replaceable>KEYTYPE</replaceable></option></arg>
89
 
      </group>
90
 
      <sbr/>
91
 
      <group>
92
 
        <arg choice="plain"><option>--sublength
93
 
        <replaceable>BITS</replaceable></option></arg>
94
 
        <arg choice="plain"><option>-L
95
 
        <replaceable>BITS</replaceable></option></arg>
96
 
      </group>
97
 
      <sbr/>
98
 
      <group>
99
 
        <arg choice="plain"><option>--name
100
 
        <replaceable>NAME</replaceable></option></arg>
101
 
        <arg choice="plain"><option>-n
102
 
        <replaceable>NAME</replaceable></option></arg>
103
 
      </group>
104
 
      <sbr/>
105
 
      <group>
106
 
        <arg choice="plain"><option>--email
107
 
        <replaceable>ADDRESS</replaceable></option></arg>
108
 
        <arg choice="plain"><option>-e
109
 
        <replaceable>ADDRESS</replaceable></option></arg>
110
 
      </group>
111
 
      <sbr/>
112
 
      <group>
113
 
        <arg choice="plain"><option>--comment
114
 
        <replaceable>TEXT</replaceable></option></arg>
115
 
        <arg choice="plain"><option>-c
116
 
        <replaceable>TEXT</replaceable></option></arg>
117
 
      </group>
118
 
      <sbr/>
119
 
      <group>
120
 
        <arg choice="plain"><option>--expire
121
 
        <replaceable>TIME</replaceable></option></arg>
122
 
        <arg choice="plain"><option>-x
123
 
        <replaceable>TIME</replaceable></option></arg>
124
 
      </group>
125
 
      <sbr/>
126
 
      <group>
127
 
        <arg choice="plain"><option>--force</option></arg>
128
 
        <arg choice="plain"><option>-f</option></arg>
129
 
      </group>
130
 
    </cmdsynopsis>
131
 
    <cmdsynopsis>
132
 
      <command>&COMMANDNAME;</command>
133
 
      <group choice="req">
134
 
        <arg choice="plain"><option>--password</option></arg>
135
 
        <arg choice="plain"><option>-p</option></arg>
136
 
        <arg choice="plain"><option>--passfile
137
 
        <replaceable>FILE</replaceable></option></arg>
138
 
        <arg choice="plain"><option>-F</option>
139
 
        <replaceable>FILE</replaceable></arg>
140
 
      </group>
141
 
      <sbr/>
142
 
      <group>
143
 
        <arg choice="plain"><option>--dir
144
 
        <replaceable>DIRECTORY</replaceable></option></arg>
145
 
        <arg choice="plain"><option>-d
146
 
        <replaceable>DIRECTORY</replaceable></option></arg>
147
 
      </group>
148
 
      <sbr/>
149
 
      <group>
150
 
        <arg choice="plain"><option>--name
151
 
        <replaceable>NAME</replaceable></option></arg>
152
 
        <arg choice="plain"><option>-n
153
 
        <replaceable>NAME</replaceable></option></arg>
154
 
      </group>
155
 
      <group>
156
 
        <arg choice="plain"><option>--no-ssh</option></arg>
157
 
        <arg choice="plain"><option>-S</option></arg>
158
 
      </group>
159
 
    </cmdsynopsis>
160
 
    <cmdsynopsis>
161
 
      <command>&COMMANDNAME;</command>
162
 
      <group choice="req">
163
 
        <arg choice="plain"><option>--help</option></arg>
164
 
        <arg choice="plain"><option>-h</option></arg>
165
 
      </group>
166
 
    </cmdsynopsis>
167
 
    <cmdsynopsis>
168
 
      <command>&COMMANDNAME;</command>
169
 
      <group choice="req">
170
 
        <arg choice="plain"><option>--version</option></arg>
171
 
        <arg choice="plain"><option>-v</option></arg>
172
 
      </group>
173
 
    </cmdsynopsis>
174
 
  </refsynopsisdiv>
175
 
  
176
 
  <refsect1 id="description">
177
 
    <title>DESCRIPTION</title>
178
 
    <para>
179
 
      <command>&COMMANDNAME;</command> is a program to generate the
180
 
      OpenPGP key used by
181
 
      <citerefentry><refentrytitle>mandos-client</refentrytitle>
182
 
      <manvolnum>8mandos</manvolnum></citerefentry>.  The key is
183
 
      normally written to /etc/mandos for later installation into the
184
 
      initrd image, but this, and most other things, can be changed
185
 
      with command line options.
186
 
    </para>
187
 
    <para>
188
 
      This program can also be used with the
189
 
      <option>--password</option> or <option>--passfile</option>
190
 
      options to generate a ready-made section for
191
 
      <filename>clients.conf</filename> (see
192
 
      <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
193
 
      <manvolnum>5</manvolnum></citerefentry>).
194
 
    </para>
195
 
  </refsect1>
196
 
  
197
 
  <refsect1 id="purpose">
198
 
    <title>PURPOSE</title>
199
 
    <para>
200
 
      The purpose of this is to enable <emphasis>remote and unattended
201
 
      rebooting</emphasis> of client host computer with an
202
 
      <emphasis>encrypted root file system</emphasis>.  See <xref
203
 
      linkend="overview"/> for details.
204
 
    </para>
205
 
  </refsect1>
206
 
  
207
 
  <refsect1 id="options">
208
 
    <title>OPTIONS</title>
209
 
    
210
 
    <variablelist>
211
 
      <varlistentry>
212
 
        <term><option>--help</option></term>
213
 
        <term><option>-h</option></term>
214
 
        <listitem>
215
 
          <para>
216
 
            Show a help message and exit
217
 
          </para>
218
 
        </listitem>
219
 
      </varlistentry>
220
 
      
221
 
      <varlistentry>
222
 
        <term><option>--dir
223
 
        <replaceable>DIRECTORY</replaceable></option></term>
224
 
        <term><option>-d
225
 
        <replaceable>DIRECTORY</replaceable></option></term>
226
 
        <listitem>
227
 
          <para>
228
 
            Target directory for key files.  Default is
229
 
            <filename class="directory">/etc/mandos</filename>.
230
 
          </para>
231
 
        </listitem>
232
 
      </varlistentry>
233
 
      
234
 
      <varlistentry>
235
 
        <term><option>--type
236
 
        <replaceable>TYPE</replaceable></option></term>
237
 
        <term><option>-t
238
 
        <replaceable>TYPE</replaceable></option></term>
239
 
        <listitem>
240
 
          <para>
241
 
            Key type.  Default is <quote>RSA</quote>.
242
 
          </para>
243
 
        </listitem>
244
 
      </varlistentry>
245
 
      
246
 
      <varlistentry>
247
 
        <term><option>--length
248
 
        <replaceable>BITS</replaceable></option></term>
249
 
        <term><option>-l
250
 
        <replaceable>BITS</replaceable></option></term>
251
 
        <listitem>
252
 
          <para>
253
 
            Key length in bits.  Default is 4096.
254
 
          </para>
255
 
        </listitem>
256
 
      </varlistentry>
257
 
      
258
 
      <varlistentry>
259
 
        <term><option>--subtype
260
 
        <replaceable>KEYTYPE</replaceable></option></term>
261
 
        <term><option>-s
262
 
        <replaceable>KEYTYPE</replaceable></option></term>
263
 
        <listitem>
264
 
          <para>
265
 
            Subkey type.  Default is <quote>RSA</quote> (Elgamal
266
 
            encryption-only).
267
 
          </para>
268
 
        </listitem>
269
 
      </varlistentry>
270
 
      
271
 
      <varlistentry>
272
 
        <term><option>--sublength
273
 
        <replaceable>BITS</replaceable></option></term>
274
 
        <term><option>-L
275
 
        <replaceable>BITS</replaceable></option></term>
276
 
        <listitem>
277
 
          <para>
278
 
            Subkey length in bits.  Default is 4096.
279
 
          </para>
280
 
        </listitem>
281
 
      </varlistentry>
282
 
      
283
 
      <varlistentry>
284
 
        <term><option>--email
285
 
        <replaceable>ADDRESS</replaceable></option></term>
286
 
        <term><option>-e
287
 
        <replaceable>ADDRESS</replaceable></option></term>
288
 
        <listitem>
289
 
          <para>
290
 
            Email address of key.  Default is empty.
291
 
          </para>
292
 
        </listitem>
293
 
      </varlistentry>
294
 
      
295
 
      <varlistentry>
296
 
        <term><option>--comment
297
 
        <replaceable>TEXT</replaceable></option></term>
298
 
        <term><option>-c
299
 
        <replaceable>TEXT</replaceable></option></term>
300
 
        <listitem>
301
 
          <para>
302
 
            Comment field for key.  Default is empty.
303
 
          </para>
304
 
        </listitem>
305
 
      </varlistentry>
306
 
      
307
 
      <varlistentry>
308
 
        <term><option>--expire
309
 
        <replaceable>TIME</replaceable></option></term>
310
 
        <term><option>-x
311
 
        <replaceable>TIME</replaceable></option></term>
312
 
        <listitem>
313
 
          <para>
314
 
            Key expire time.  Default is no expiration.  See
315
 
            <citerefentry><refentrytitle>gpg</refentrytitle>
316
 
            <manvolnum>1</manvolnum></citerefentry> for syntax.
317
 
          </para>
318
 
        </listitem>
319
 
      </varlistentry>
320
 
      
321
 
      <varlistentry>
322
 
        <term><option>--force</option></term>
323
 
        <term><option>-f</option></term>
324
 
        <listitem>
325
 
          <para>
326
 
            Force overwriting old key.
327
 
          </para>
328
 
        </listitem>
329
 
      </varlistentry>
330
 
      <varlistentry>
331
 
        <term><option>--password</option></term>
332
 
        <term><option>-p</option></term>
333
 
        <listitem>
334
 
          <para>
335
 
            Prompt for a password and encrypt it with the key already
336
 
            present in either <filename>/etc/mandos</filename> or the
337
 
            directory specified with the <option>--dir</option>
338
 
            option.  Outputs, on standard output, a section suitable
339
 
            for inclusion in <citerefentry><refentrytitle
340
 
            >mandos-clients.conf</refentrytitle><manvolnum
341
 
            >8</manvolnum></citerefentry>.  The host name or the name
342
 
            specified with the <option>--name</option> option is used
343
 
            for the section header.  All other options are ignored,
344
 
            and no key is created.
345
 
          </para>
346
 
        </listitem>
347
 
      </varlistentry>
348
 
      <varlistentry>
349
 
        <term><option>--passfile
350
 
        <replaceable>FILE</replaceable></option></term>
351
 
        <term><option>-F
352
 
        <replaceable>FILE</replaceable></option></term>
353
 
        <listitem>
354
 
          <para>
355
 
            The same as <option>--password</option>, but read from
356
 
            <replaceable>FILE</replaceable>, not the terminal.
357
 
          </para>
358
 
        </listitem>
359
 
      </varlistentry>
360
 
      <varlistentry>
361
 
        <term><option>--no-ssh</option></term>
362
 
        <term><option>-S</option></term>
363
 
        <listitem>
364
 
          <para>
365
 
            When <option>--password</option> or
366
 
            <option>--passfile</option> is given, this option will
367
 
            prevent <command>&COMMANDNAME;</command> from calling
368
 
            <command>ssh-keyscan</command> to get an SSH fingerprint
369
 
            for this host and, if successful, output suitable config
370
 
            options to use this fingerprint as a
371
 
            <option>checker</option> option in the output.  This is
372
 
            otherwise the default behavior.
373
 
          </para>
374
 
        </listitem>
375
 
      </varlistentry>
376
 
    </variablelist>
377
 
  </refsect1>
378
 
  
379
 
  <refsect1 id="overview">
380
 
    <title>OVERVIEW</title>
381
 
    <xi:include href="overview.xml"/>
382
 
    <para>
383
 
      This program is a small utility to generate new OpenPGP keys for
384
 
      new Mandos clients, and to generate sections for inclusion in
385
 
      <filename>clients.conf</filename> on the server.
386
 
    </para>
387
 
  </refsect1>
388
 
  
389
 
  <refsect1 id="exit_status">
390
 
    <title>EXIT STATUS</title>
391
 
    <para>
392
 
      The exit status will be 0 if a new key (or password, if the
393
 
      <option>--password</option> option was used) was successfully
394
 
      created, otherwise not.
395
 
    </para>
396
 
  </refsect1>
397
 
  
398
 
  <refsect1 id="environment">
399
 
    <title>ENVIRONMENT</title>
400
 
    <variablelist>
401
 
      <varlistentry>
402
 
        <term><envar>TMPDIR</envar></term>
403
 
        <listitem>
404
 
          <para>
405
 
            If set, temporary files will be created here. See
406
 
            <citerefentry><refentrytitle>mktemp</refentrytitle>
407
 
            <manvolnum>1</manvolnum></citerefentry>.
408
 
          </para>
409
 
        </listitem>
410
 
      </varlistentry>
411
 
    </variablelist>
412
 
  </refsect1>
413
 
  
414
 
  <refsect1 id="files">
415
 
    <title>FILES</title>
416
 
    <para>
417
 
      Use the <option>--dir</option> option to change where
418
 
      <command>&COMMANDNAME;</command> will write the key files.  The
419
 
      default file names are shown here.
420
 
    </para>
421
 
    <variablelist>
422
 
      <varlistentry>
423
 
        <term><filename>/etc/mandos/seckey.txt</filename></term>
424
 
        <listitem>
425
 
          <para>
426
 
            OpenPGP secret key file which will be created or
427
 
            overwritten.
428
 
          </para>
429
 
        </listitem>
430
 
      </varlistentry>
431
 
      <varlistentry>
432
 
        <term><filename>/etc/mandos/pubkey.txt</filename></term>
433
 
        <listitem>
434
 
          <para>
435
 
            OpenPGP public key file which will be created or
436
 
            overwritten.
437
 
          </para>
438
 
        </listitem>
439
 
      </varlistentry>
440
 
      <varlistentry>
441
 
        <term><filename class="directory">/tmp</filename></term>
442
 
        <listitem>
443
 
          <para>
444
 
            Temporary files will be written here if
445
 
            <varname>TMPDIR</varname> is not set.
446
 
          </para>
447
 
        </listitem>
448
 
      </varlistentry>
449
 
    </variablelist>
450
 
  </refsect1>
451
 
  
452
 
<!--   <refsect1 id="bugs"> -->
453
 
<!--     <title>BUGS</title> -->
454
 
<!--     <para> -->
455
 
<!--     </para> -->
456
 
<!--   </refsect1> -->
457
 
  
458
 
  <refsect1 id="example">
459
 
    <title>EXAMPLE</title>
460
 
    <informalexample>
461
 
      <para>
462
 
        Normal invocation needs no options:
463
 
      </para>
464
 
      <para>
465
 
        <userinput>&COMMANDNAME;</userinput>
466
 
      </para>
467
 
    </informalexample>
468
 
    <informalexample>
469
 
      <para>
470
 
        Create key in another directory and of another type.  Force
471
 
        overwriting old key files:
472
 
      </para>
473
 
      <para>
474
 
 
475
 
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476
 
<userinput>&COMMANDNAME; --dir ~/keydir --type RSA --force</userinput>
477
 
 
478
 
      </para>
479
 
    </informalexample>
480
 
    <informalexample>
481
 
      <para>
482
 
        Prompt for a password, encrypt it with the key in <filename
483
 
        class="directory">/etc/mandos</filename> and output a section
484
 
        suitable for <filename>clients.conf</filename>.
485
 
      </para>
486
 
      <para>
487
 
        <userinput>&COMMANDNAME; --password</userinput>
488
 
      </para>
489
 
    </informalexample>
490
 
    <informalexample>
491
 
      <para>
492
 
        Prompt for a password, encrypt it with the key in the
493
 
        <filename>client-key</filename> directory and output a section
494
 
        suitable for <filename>clients.conf</filename>.
495
 
      </para>
496
 
      <para>
497
 
 
498
 
<!-- do not wrap this line -->
499
 
<userinput>&COMMANDNAME; --password --dir client-key</userinput>
500
 
 
501
 
      </para>
502
 
    </informalexample>
503
 
  </refsect1>
504
 
  
505
 
  <refsect1 id="security">
506
 
    <title>SECURITY</title>
507
 
    <para>
508
 
      The <option>--type</option>, <option>--length</option>,
509
 
      <option>--subtype</option>, and <option>--sublength</option>
510
 
      options can be used to create keys of low security.  If in
511
 
      doubt, leave them to the default values.
512
 
    </para>
513
 
    <para>
514
 
      The key expire time is <emphasis>not</emphasis> guaranteed to be
515
 
      honored by <citerefentry><refentrytitle>mandos</refentrytitle>
516
 
      <manvolnum>8</manvolnum></citerefentry>.
517
 
    </para>
518
 
  </refsect1>
519
 
  
520
 
  <refsect1 id="see_also">
521
 
    <title>SEE ALSO</title>
522
 
    <para>
523
 
      <citerefentry><refentrytitle>intro</refentrytitle>
524
 
      <manvolnum>8mandos</manvolnum></citerefentry>,
525
 
      <citerefentry><refentrytitle>gpg</refentrytitle>
526
 
      <manvolnum>1</manvolnum></citerefentry>,
527
 
      <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
528
 
      <manvolnum>5</manvolnum></citerefentry>,
529
 
      <citerefentry><refentrytitle>mandos</refentrytitle>
530
 
      <manvolnum>8</manvolnum></citerefentry>,
531
 
      <citerefentry><refentrytitle>mandos-client</refentrytitle>
532
 
      <manvolnum>8mandos</manvolnum></citerefentry>,
533
 
      <citerefentry><refentrytitle>ssh-keyscan</refentrytitle>
534
 
      <manvolnum>1</manvolnum></citerefentry>
535
 
    </para>
536
 
  </refsect1>
537
 
  
538
 
</refentry>
539
 
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