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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"
3
 
        "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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<!ENTITY COMMANDNAME "mandos-keygen">
5
 
<!ENTITY TIMESTAMP "2019-02-10">
6
 
<!ENTITY % common SYSTEM "common.ent">
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%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
 
      <year>2016</year>
43
 
      <year>2017</year>
44
 
      <year>2018</year>
45
 
      <holder>Teddy Hogeborn</holder>
46
 
      <holder>Björn Påhlsson</holder>
47
 
    </copyright>
48
 
    <xi:include href="legalnotice.xml"/>
49
 
  </refentryinfo>
50
 
  
51
 
  <refmeta>
52
 
    <refentrytitle>&COMMANDNAME;</refentrytitle>
53
 
    <manvolnum>8</manvolnum>
54
 
  </refmeta>
55
 
  
56
 
  <refnamediv>
57
 
    <refname><command>&COMMANDNAME;</command></refname>
58
 
    <refpurpose>
59
 
      Generate key and password for Mandos client and server.
60
 
    </refpurpose>
61
 
  </refnamediv>
62
 
  
63
 
  <refsynopsisdiv>
64
 
    <cmdsynopsis>
65
 
      <command>&COMMANDNAME;</command>
66
 
      <group>
67
 
        <arg choice="plain"><option>--dir
68
 
        <replaceable>DIRECTORY</replaceable></option></arg>
69
 
        <arg choice="plain"><option>-d
70
 
        <replaceable>DIRECTORY</replaceable></option></arg>
71
 
      </group>
72
 
      <sbr/>
73
 
      <group>
74
 
        <arg choice="plain"><option>--type
75
 
        <replaceable>KEYTYPE</replaceable></option></arg>
76
 
        <arg choice="plain"><option>-t
77
 
        <replaceable>KEYTYPE</replaceable></option></arg>
78
 
      </group>
79
 
      <sbr/>
80
 
      <group>
81
 
        <arg choice="plain"><option>--length
82
 
        <replaceable>BITS</replaceable></option></arg>
83
 
        <arg choice="plain"><option>-l
84
 
        <replaceable>BITS</replaceable></option></arg>
85
 
      </group>
86
 
      <sbr/>
87
 
      <group>
88
 
        <arg choice="plain"><option>--subtype
89
 
        <replaceable>KEYTYPE</replaceable></option></arg>
90
 
        <arg choice="plain"><option>-s
91
 
        <replaceable>KEYTYPE</replaceable></option></arg>
92
 
      </group>
93
 
      <sbr/>
94
 
      <group>
95
 
        <arg choice="plain"><option>--sublength
96
 
        <replaceable>BITS</replaceable></option></arg>
97
 
        <arg choice="plain"><option>-L
98
 
        <replaceable>BITS</replaceable></option></arg>
99
 
      </group>
100
 
      <sbr/>
101
 
      <group>
102
 
        <arg choice="plain"><option>--name
103
 
        <replaceable>NAME</replaceable></option></arg>
104
 
        <arg choice="plain"><option>-n
105
 
        <replaceable>NAME</replaceable></option></arg>
106
 
      </group>
107
 
      <sbr/>
108
 
      <group>
109
 
        <arg choice="plain"><option>--email
110
 
        <replaceable>ADDRESS</replaceable></option></arg>
111
 
        <arg choice="plain"><option>-e
112
 
        <replaceable>ADDRESS</replaceable></option></arg>
113
 
      </group>
114
 
      <sbr/>
115
 
      <group>
116
 
        <arg choice="plain"><option>--comment
117
 
        <replaceable>TEXT</replaceable></option></arg>
118
 
        <arg choice="plain"><option>-c
119
 
        <replaceable>TEXT</replaceable></option></arg>
120
 
      </group>
121
 
      <sbr/>
122
 
      <group>
123
 
        <arg choice="plain"><option>--expire
124
 
        <replaceable>TIME</replaceable></option></arg>
125
 
        <arg choice="plain"><option>-x
126
 
        <replaceable>TIME</replaceable></option></arg>
127
 
      </group>
128
 
      <sbr/>
129
 
      <group>
130
 
        <arg choice="plain"><option>--tls-keytype
131
 
        <replaceable>KEYTYPE</replaceable></option></arg>
132
 
        <arg choice="plain"><option>-T
133
 
        <replaceable>KEYTYPE</replaceable></option></arg>
134
 
      </group>
135
 
      <sbr/>
136
 
      <group>
137
 
        <arg choice="plain"><option>--force</option></arg>
138
 
        <arg choice="plain"><option>-f</option></arg>
139
 
      </group>
140
 
    </cmdsynopsis>
141
 
    <cmdsynopsis>
142
 
      <command>&COMMANDNAME;</command>
143
 
      <group choice="req">
144
 
        <arg choice="plain"><option>--password</option></arg>
145
 
        <arg choice="plain"><option>-p</option></arg>
146
 
        <arg choice="plain"><option>--passfile
147
 
        <replaceable>FILE</replaceable></option></arg>
148
 
        <arg choice="plain"><option>-F</option>
149
 
        <replaceable>FILE</replaceable></arg>
150
 
      </group>
151
 
      <sbr/>
152
 
      <group>
153
 
        <arg choice="plain"><option>--dir
154
 
        <replaceable>DIRECTORY</replaceable></option></arg>
155
 
        <arg choice="plain"><option>-d
156
 
        <replaceable>DIRECTORY</replaceable></option></arg>
157
 
      </group>
158
 
      <sbr/>
159
 
      <group>
160
 
        <arg choice="plain"><option>--name
161
 
        <replaceable>NAME</replaceable></option></arg>
162
 
        <arg choice="plain"><option>-n
163
 
        <replaceable>NAME</replaceable></option></arg>
164
 
      </group>
165
 
      <group>
166
 
        <arg choice="plain"><option>--no-ssh</option></arg>
167
 
        <arg choice="plain"><option>-S</option></arg>
168
 
      </group>
169
 
    </cmdsynopsis>
170
 
    <cmdsynopsis>
171
 
      <command>&COMMANDNAME;</command>
172
 
      <group choice="req">
173
 
        <arg choice="plain"><option>--help</option></arg>
174
 
        <arg choice="plain"><option>-h</option></arg>
175
 
      </group>
176
 
    </cmdsynopsis>
177
 
    <cmdsynopsis>
178
 
      <command>&COMMANDNAME;</command>
179
 
      <group choice="req">
180
 
        <arg choice="plain"><option>--version</option></arg>
181
 
        <arg choice="plain"><option>-v</option></arg>
182
 
      </group>
183
 
    </cmdsynopsis>
184
 
  </refsynopsisdiv>
185
 
  
186
 
  <refsect1 id="description">
187
 
    <title>DESCRIPTION</title>
188
 
    <para>
189
 
      <command>&COMMANDNAME;</command> is a program to generate the
190
 
      TLS and OpenPGP keys used by
191
 
      <citerefentry><refentrytitle>mandos-client</refentrytitle>
192
 
      <manvolnum>8mandos</manvolnum></citerefentry>.  The keys are
193
 
      normally written to /etc/mandos for later installation into the
194
 
      initrd image, but this, and most other things, can be changed
195
 
      with command line options.
196
 
    </para>
197
 
    <para>
198
 
      This program can also be used with the
199
 
      <option>--password</option> or <option>--passfile</option>
200
 
      options to generate a ready-made section for
201
 
      <filename>clients.conf</filename> (see
202
 
      <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
203
 
      <manvolnum>5</manvolnum></citerefentry>).
204
 
    </para>
205
 
  </refsect1>
206
 
  
207
 
  <refsect1 id="purpose">
208
 
    <title>PURPOSE</title>
209
 
    <para>
210
 
      The purpose of this is to enable <emphasis>remote and unattended
211
 
      rebooting</emphasis> of client host computer with an
212
 
      <emphasis>encrypted root file system</emphasis>.  See <xref
213
 
      linkend="overview"/> for details.
214
 
    </para>
215
 
  </refsect1>
216
 
  
217
 
  <refsect1 id="options">
218
 
    <title>OPTIONS</title>
219
 
    
220
 
    <variablelist>
221
 
      <varlistentry>
222
 
        <term><option>--help</option></term>
223
 
        <term><option>-h</option></term>
224
 
        <listitem>
225
 
          <para>
226
 
            Show a help message and exit
227
 
          </para>
228
 
        </listitem>
229
 
      </varlistentry>
230
 
      
231
 
      <varlistentry>
232
 
        <term><option>--dir
233
 
        <replaceable>DIRECTORY</replaceable></option></term>
234
 
        <term><option>-d
235
 
        <replaceable>DIRECTORY</replaceable></option></term>
236
 
        <listitem>
237
 
          <para>
238
 
            Target directory for key files.  Default is
239
 
            <filename class="directory">/etc/mandos</filename>.
240
 
          </para>
241
 
        </listitem>
242
 
      </varlistentry>
243
 
      
244
 
      <varlistentry>
245
 
        <term><option>--type
246
 
        <replaceable>TYPE</replaceable></option></term>
247
 
        <term><option>-t
248
 
        <replaceable>TYPE</replaceable></option></term>
249
 
        <listitem>
250
 
          <para>
251
 
            OpenPGP key type.  Default is <quote>RSA</quote>.
252
 
          </para>
253
 
        </listitem>
254
 
      </varlistentry>
255
 
      
256
 
      <varlistentry>
257
 
        <term><option>--length
258
 
        <replaceable>BITS</replaceable></option></term>
259
 
        <term><option>-l
260
 
        <replaceable>BITS</replaceable></option></term>
261
 
        <listitem>
262
 
          <para>
263
 
            OpenPGP key length in bits.  Default is 4096.
264
 
          </para>
265
 
        </listitem>
266
 
      </varlistentry>
267
 
      
268
 
      <varlistentry>
269
 
        <term><option>--subtype
270
 
        <replaceable>KEYTYPE</replaceable></option></term>
271
 
        <term><option>-s
272
 
        <replaceable>KEYTYPE</replaceable></option></term>
273
 
        <listitem>
274
 
          <para>
275
 
            OpenPGP subkey type.  Default is <quote>RSA</quote>
276
 
          </para>
277
 
        </listitem>
278
 
      </varlistentry>
279
 
      
280
 
      <varlistentry>
281
 
        <term><option>--sublength
282
 
        <replaceable>BITS</replaceable></option></term>
283
 
        <term><option>-L
284
 
        <replaceable>BITS</replaceable></option></term>
285
 
        <listitem>
286
 
          <para>
287
 
            OpenPGP subkey length in bits.  Default is 4096.
288
 
          </para>
289
 
        </listitem>
290
 
      </varlistentry>
291
 
      
292
 
      <varlistentry>
293
 
        <term><option>--email
294
 
        <replaceable>ADDRESS</replaceable></option></term>
295
 
        <term><option>-e
296
 
        <replaceable>ADDRESS</replaceable></option></term>
297
 
        <listitem>
298
 
          <para>
299
 
            Email address of key.  Default is empty.
300
 
          </para>
301
 
        </listitem>
302
 
      </varlistentry>
303
 
      
304
 
      <varlistentry>
305
 
        <term><option>--comment
306
 
        <replaceable>TEXT</replaceable></option></term>
307
 
        <term><option>-c
308
 
        <replaceable>TEXT</replaceable></option></term>
309
 
        <listitem>
310
 
          <para>
311
 
            Comment field for key.  Default is empty.
312
 
          </para>
313
 
        </listitem>
314
 
      </varlistentry>
315
 
      
316
 
      <varlistentry>
317
 
        <term><option>--expire
318
 
        <replaceable>TIME</replaceable></option></term>
319
 
        <term><option>-x
320
 
        <replaceable>TIME</replaceable></option></term>
321
 
        <listitem>
322
 
          <para>
323
 
            Key expire time.  Default is no expiration.  See
324
 
            <citerefentry><refentrytitle>gpg</refentrytitle>
325
 
            <manvolnum>1</manvolnum></citerefentry> for syntax.
326
 
          </para>
327
 
        </listitem>
328
 
      </varlistentry>
329
 
      
330
 
      <varlistentry>
331
 
        <term><option>--tls-keytype
332
 
        <replaceable>KEYTYPE</replaceable></option></term>
333
 
        <term><option>-T
334
 
        <replaceable>KEYTYPE</replaceable></option></term>
335
 
        <listitem>
336
 
          <para>
337
 
            TLS key type.  Default is <quote>ed25519</quote>
338
 
          </para>
339
 
        </listitem>
340
 
      </varlistentry>
341
 
      
342
 
      <varlistentry>
343
 
        <term><option>--force</option></term>
344
 
        <term><option>-f</option></term>
345
 
        <listitem>
346
 
          <para>
347
 
            Force overwriting old key.
348
 
          </para>
349
 
        </listitem>
350
 
      </varlistentry>
351
 
      <varlistentry>
352
 
        <term><option>--password</option></term>
353
 
        <term><option>-p</option></term>
354
 
        <listitem>
355
 
          <para>
356
 
            Prompt for a password and encrypt it with the key already
357
 
            present in either <filename>/etc/mandos</filename> or the
358
 
            directory specified with the <option>--dir</option>
359
 
            option.  Outputs, on standard output, a section suitable
360
 
            for inclusion in <citerefentry><refentrytitle
361
 
            >mandos-clients.conf</refentrytitle><manvolnum
362
 
            >8</manvolnum></citerefentry>.  The host name or the name
363
 
            specified with the <option>--name</option> option is used
364
 
            for the section header.  All other options are ignored,
365
 
            and no key is created.
366
 
          </para>
367
 
        </listitem>
368
 
      </varlistentry>
369
 
      <varlistentry>
370
 
        <term><option>--passfile
371
 
        <replaceable>FILE</replaceable></option></term>
372
 
        <term><option>-F
373
 
        <replaceable>FILE</replaceable></option></term>
374
 
        <listitem>
375
 
          <para>
376
 
            The same as <option>--password</option>, but read from
377
 
            <replaceable>FILE</replaceable>, not the terminal.
378
 
          </para>
379
 
        </listitem>
380
 
      </varlistentry>
381
 
      <varlistentry>
382
 
        <term><option>--no-ssh</option></term>
383
 
        <term><option>-S</option></term>
384
 
        <listitem>
385
 
          <para>
386
 
            When <option>--password</option> or
387
 
            <option>--passfile</option> is given, this option will
388
 
            prevent <command>&COMMANDNAME;</command> from calling
389
 
            <command>ssh-keyscan</command> to get an SSH fingerprint
390
 
            for this host and, if successful, output suitable config
391
 
            options to use this fingerprint as a
392
 
            <option>checker</option> option in the output.  This is
393
 
            otherwise the default behavior.
394
 
          </para>
395
 
        </listitem>
396
 
      </varlistentry>
397
 
    </variablelist>
398
 
  </refsect1>
399
 
  
400
 
  <refsect1 id="overview">
401
 
    <title>OVERVIEW</title>
402
 
    <xi:include href="overview.xml"/>
403
 
    <para>
404
 
      This program is a small utility to generate new TLS and OpenPGP
405
 
      keys for new Mandos clients, and to generate sections for
406
 
      inclusion in <filename>clients.conf</filename> on the server.
407
 
    </para>
408
 
  </refsect1>
409
 
  
410
 
  <refsect1 id="exit_status">
411
 
    <title>EXIT STATUS</title>
412
 
    <para>
413
 
      The exit status will be 0 if a new key (or password, if the
414
 
      <option>--password</option> option was used) was successfully
415
 
      created, otherwise not.
416
 
    </para>
417
 
  </refsect1>
418
 
  
419
 
  <refsect1 id="environment">
420
 
    <title>ENVIRONMENT</title>
421
 
    <variablelist>
422
 
      <varlistentry>
423
 
        <term><envar>TMPDIR</envar></term>
424
 
        <listitem>
425
 
          <para>
426
 
            If set, temporary files will be created here. See
427
 
            <citerefentry><refentrytitle>mktemp</refentrytitle>
428
 
            <manvolnum>1</manvolnum></citerefentry>.
429
 
          </para>
430
 
        </listitem>
431
 
      </varlistentry>
432
 
    </variablelist>
433
 
  </refsect1>
434
 
  
435
 
  <refsect1 id="files">
436
 
    <title>FILES</title>
437
 
    <para>
438
 
      Use the <option>--dir</option> option to change where
439
 
      <command>&COMMANDNAME;</command> will write the key files.  The
440
 
      default file names are shown here.
441
 
    </para>
442
 
    <variablelist>
443
 
      <varlistentry>
444
 
        <term><filename>/etc/mandos/seckey.txt</filename></term>
445
 
        <listitem>
446
 
          <para>
447
 
            OpenPGP secret key file which will be created or
448
 
            overwritten.
449
 
          </para>
450
 
        </listitem>
451
 
      </varlistentry>
452
 
      <varlistentry>
453
 
        <term><filename>/etc/mandos/pubkey.txt</filename></term>
454
 
        <listitem>
455
 
          <para>
456
 
            OpenPGP public key file which will be created or
457
 
            overwritten.
458
 
          </para>
459
 
        </listitem>
460
 
      </varlistentry>
461
 
      <varlistentry>
462
 
        <term><filename>/etc/keys/mandos/tls-privkey.pem</filename></term>
463
 
        <listitem>
464
 
          <para>
465
 
            Private key file which will be created or overwritten.
466
 
          </para>
467
 
        </listitem>
468
 
      </varlistentry>
469
 
      <varlistentry>
470
 
        <term><filename>/etc/keys/mandos/tls-pubkey.pem</filename></term>
471
 
        <listitem>
472
 
          <para>
473
 
            Public key file which will be created or overwritten.
474
 
          </para>
475
 
        </listitem>
476
 
      </varlistentry>
477
 
      <varlistentry>
478
 
        <term><filename class="directory">/tmp</filename></term>
479
 
        <listitem>
480
 
          <para>
481
 
            Temporary files will be written here if
482
 
            <varname>TMPDIR</varname> is not set.
483
 
          </para>
484
 
        </listitem>
485
 
      </varlistentry>
486
 
    </variablelist>
487
 
  </refsect1>
488
 
  
489
 
  <refsect1 id="bugs">
490
 
    <title>BUGS</title>
491
 
    <xi:include href="bugs.xml"/>
492
 
  </refsect1>
493
 
  
494
 
  <refsect1 id="example">
495
 
    <title>EXAMPLE</title>
496
 
    <informalexample>
497
 
      <para>
498
 
        Normal invocation needs no options:
499
 
      </para>
500
 
      <para>
501
 
        <userinput>&COMMANDNAME;</userinput>
502
 
      </para>
503
 
    </informalexample>
504
 
    <informalexample>
505
 
      <para>
506
 
        Create key in another directory and of another type.  Force
507
 
        overwriting old key files:
508
 
      </para>
509
 
      <para>
510
 
 
511
 
<!-- do not wrap this line -->
512
 
<userinput>&COMMANDNAME; --dir ~/keydir --type RSA --force</userinput>
513
 
 
514
 
      </para>
515
 
    </informalexample>
516
 
    <informalexample>
517
 
      <para>
518
 
        Prompt for a password, encrypt it with the key in <filename
519
 
        class="directory">/etc/mandos</filename> and output a section
520
 
        suitable for <filename>clients.conf</filename>.
521
 
      </para>
522
 
      <para>
523
 
        <userinput>&COMMANDNAME; --password</userinput>
524
 
      </para>
525
 
    </informalexample>
526
 
    <informalexample>
527
 
      <para>
528
 
        Prompt for a password, encrypt it with the key in the
529
 
        <filename>client-key</filename> directory and output a section
530
 
        suitable for <filename>clients.conf</filename>.
531
 
      </para>
532
 
      <para>
533
 
 
534
 
<!-- do not wrap this line -->
535
 
<userinput>&COMMANDNAME; --password --dir client-key</userinput>
536
 
 
537
 
      </para>
538
 
    </informalexample>
539
 
  </refsect1>
540
 
  
541
 
  <refsect1 id="security">
542
 
    <title>SECURITY</title>
543
 
    <para>
544
 
      The <option>--type</option>, <option>--length</option>,
545
 
      <option>--subtype</option>, and <option>--sublength</option>
546
 
      options can be used to create keys of low security.  If in
547
 
      doubt, leave them to the default values.
548
 
    </para>
549
 
    <para>
550
 
      The key expire time is <emphasis>not</emphasis> guaranteed to be
551
 
      honored by <citerefentry><refentrytitle>mandos</refentrytitle>
552
 
      <manvolnum>8</manvolnum></citerefentry>.
553
 
    </para>
554
 
  </refsect1>
555
 
  
556
 
  <refsect1 id="see_also">
557
 
    <title>SEE ALSO</title>
558
 
    <para>
559
 
      <citerefentry><refentrytitle>intro</refentrytitle>
560
 
      <manvolnum>8mandos</manvolnum></citerefentry>,
561
 
      <citerefentry><refentrytitle>gpg</refentrytitle>
562
 
      <manvolnum>1</manvolnum></citerefentry>,
563
 
      <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
564
 
      <manvolnum>5</manvolnum></citerefentry>,
565
 
      <citerefentry><refentrytitle>mandos</refentrytitle>
566
 
      <manvolnum>8</manvolnum></citerefentry>,
567
 
      <citerefentry><refentrytitle>mandos-client</refentrytitle>
568
 
      <manvolnum>8mandos</manvolnum></citerefentry>,
569
 
      <citerefentry><refentrytitle>ssh-keyscan</refentrytitle>
570
 
      <manvolnum>1</manvolnum></citerefentry>
571
 
    </para>
572
 
  </refsect1>
573
 
  
574
 
</refentry>
575
 
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576
 
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577
 
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578
 
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579
 
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