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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" [
4
 
<!ENTITY COMMANDNAME "mandos-keygen">
5
 
<!ENTITY TIMESTAMP "2019-02-10">
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
 
      <year>2016</year>
43
 
      <year>2017</year>
44
 
      <year>2018</year>
45
 
      <year>2019</year>
46
 
      <holder>Teddy Hogeborn</holder>
47
 
      <holder>Björn Påhlsson</holder>
48
 
    </copyright>
49
 
    <xi:include href="legalnotice.xml"/>
50
 
  </refentryinfo>
51
 
  
52
 
  <refmeta>
53
 
    <refentrytitle>&COMMANDNAME;</refentrytitle>
54
 
    <manvolnum>8</manvolnum>
55
 
  </refmeta>
56
 
  
57
 
  <refnamediv>
58
 
    <refname><command>&COMMANDNAME;</command></refname>
59
 
    <refpurpose>
60
 
      Generate key and password for Mandos client and server.
61
 
    </refpurpose>
62
 
  </refnamediv>
63
 
  
64
 
  <refsynopsisdiv>
65
 
    <cmdsynopsis>
66
 
      <command>&COMMANDNAME;</command>
67
 
      <group>
68
 
        <arg choice="plain"><option>--dir
69
 
        <replaceable>DIRECTORY</replaceable></option></arg>
70
 
        <arg choice="plain"><option>-d
71
 
        <replaceable>DIRECTORY</replaceable></option></arg>
72
 
      </group>
73
 
      <sbr/>
74
 
      <group>
75
 
        <arg choice="plain"><option>--type
76
 
        <replaceable>KEYTYPE</replaceable></option></arg>
77
 
        <arg choice="plain"><option>-t
78
 
        <replaceable>KEYTYPE</replaceable></option></arg>
79
 
      </group>
80
 
      <sbr/>
81
 
      <group>
82
 
        <arg choice="plain"><option>--length
83
 
        <replaceable>BITS</replaceable></option></arg>
84
 
        <arg choice="plain"><option>-l
85
 
        <replaceable>BITS</replaceable></option></arg>
86
 
      </group>
87
 
      <sbr/>
88
 
      <group>
89
 
        <arg choice="plain"><option>--subtype
90
 
        <replaceable>KEYTYPE</replaceable></option></arg>
91
 
        <arg choice="plain"><option>-s
92
 
        <replaceable>KEYTYPE</replaceable></option></arg>
93
 
      </group>
94
 
      <sbr/>
95
 
      <group>
96
 
        <arg choice="plain"><option>--sublength
97
 
        <replaceable>BITS</replaceable></option></arg>
98
 
        <arg choice="plain"><option>-L
99
 
        <replaceable>BITS</replaceable></option></arg>
100
 
      </group>
101
 
      <sbr/>
102
 
      <group>
103
 
        <arg choice="plain"><option>--name
104
 
        <replaceable>NAME</replaceable></option></arg>
105
 
        <arg choice="plain"><option>-n
106
 
        <replaceable>NAME</replaceable></option></arg>
107
 
      </group>
108
 
      <sbr/>
109
 
      <group>
110
 
        <arg choice="plain"><option>--email
111
 
        <replaceable>ADDRESS</replaceable></option></arg>
112
 
        <arg choice="plain"><option>-e
113
 
        <replaceable>ADDRESS</replaceable></option></arg>
114
 
      </group>
115
 
      <sbr/>
116
 
      <group>
117
 
        <arg choice="plain"><option>--comment
118
 
        <replaceable>TEXT</replaceable></option></arg>
119
 
        <arg choice="plain"><option>-c
120
 
        <replaceable>TEXT</replaceable></option></arg>
121
 
      </group>
122
 
      <sbr/>
123
 
      <group>
124
 
        <arg choice="plain"><option>--expire
125
 
        <replaceable>TIME</replaceable></option></arg>
126
 
        <arg choice="plain"><option>-x
127
 
        <replaceable>TIME</replaceable></option></arg>
128
 
      </group>
129
 
      <sbr/>
130
 
      <group>
131
 
        <arg choice="plain"><option>--tls-keytype
132
 
        <replaceable>KEYTYPE</replaceable></option></arg>
133
 
        <arg choice="plain"><option>-T
134
 
        <replaceable>KEYTYPE</replaceable></option></arg>
135
 
      </group>
136
 
      <sbr/>
137
 
      <group>
138
 
        <arg choice="plain"><option>--force</option></arg>
139
 
        <arg choice="plain"><option>-f</option></arg>
140
 
      </group>
141
 
    </cmdsynopsis>
142
 
    <cmdsynopsis>
143
 
      <command>&COMMANDNAME;</command>
144
 
      <group choice="req">
145
 
        <arg choice="plain"><option>--password</option></arg>
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>
151
 
      </group>
152
 
      <sbr/>
153
 
      <group>
154
 
        <arg choice="plain"><option>--dir
155
 
        <replaceable>DIRECTORY</replaceable></option></arg>
156
 
        <arg choice="plain"><option>-d
157
 
        <replaceable>DIRECTORY</replaceable></option></arg>
158
 
      </group>
159
 
      <sbr/>
160
 
      <group>
161
 
        <arg choice="plain"><option>--name
162
 
        <replaceable>NAME</replaceable></option></arg>
163
 
        <arg choice="plain"><option>-n
164
 
        <replaceable>NAME</replaceable></option></arg>
165
 
      </group>
166
 
      <group>
167
 
        <arg choice="plain"><option>--no-ssh</option></arg>
168
 
        <arg choice="plain"><option>-S</option></arg>
169
 
      </group>
170
 
    </cmdsynopsis>
171
 
    <cmdsynopsis>
172
 
      <command>&COMMANDNAME;</command>
173
 
      <group choice="req">
174
 
        <arg choice="plain"><option>--help</option></arg>
175
 
        <arg choice="plain"><option>-h</option></arg>
176
 
      </group>
177
 
    </cmdsynopsis>
178
 
    <cmdsynopsis>
179
 
      <command>&COMMANDNAME;</command>
180
 
      <group choice="req">
181
 
        <arg choice="plain"><option>--version</option></arg>
182
 
        <arg choice="plain"><option>-v</option></arg>
183
 
      </group>
184
 
    </cmdsynopsis>
185
 
  </refsynopsisdiv>
186
 
  
187
 
  <refsect1 id="description">
188
 
    <title>DESCRIPTION</title>
189
 
    <para>
190
 
      <command>&COMMANDNAME;</command> is a program to generate the
191
 
      TLS and OpenPGP keys used by
192
 
      <citerefentry><refentrytitle>mandos-client</refentrytitle>
193
 
      <manvolnum>8mandos</manvolnum></citerefentry>.  The keys are
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.
197
 
    </para>
198
 
    <para>
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
203
 
      <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
204
 
      <manvolnum>5</manvolnum></citerefentry>).
205
 
    </para>
206
 
  </refsect1>
207
 
  
208
 
  <refsect1 id="purpose">
209
 
    <title>PURPOSE</title>
210
 
    <para>
211
 
      The purpose of this is to enable <emphasis>remote and unattended
212
 
      rebooting</emphasis> of client host computer with an
213
 
      <emphasis>encrypted root file system</emphasis>.  See <xref
214
 
      linkend="overview"/> for details.
215
 
    </para>
216
 
  </refsect1>
217
 
  
218
 
  <refsect1 id="options">
219
 
    <title>OPTIONS</title>
220
 
    
221
 
    <variablelist>
222
 
      <varlistentry>
223
 
        <term><option>--help</option></term>
224
 
        <term><option>-h</option></term>
225
 
        <listitem>
226
 
          <para>
227
 
            Show a help message and exit
228
 
          </para>
229
 
        </listitem>
230
 
      </varlistentry>
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>
298
 
        <listitem>
299
 
          <para>
300
 
            Email address of key.  Default is empty.
301
 
          </para>
302
 
        </listitem>
303
 
      </varlistentry>
304
 
      
305
 
      <varlistentry>
306
 
        <term><option>--comment
307
 
        <replaceable>TEXT</replaceable></option></term>
308
 
        <term><option>-c
309
 
        <replaceable>TEXT</replaceable></option></term>
310
 
        <listitem>
311
 
          <para>
312
 
            Comment field for key.  Default is empty.
313
 
          </para>
314
 
        </listitem>
315
 
      </varlistentry>
316
 
      
317
 
      <varlistentry>
318
 
        <term><option>--expire
319
 
        <replaceable>TIME</replaceable></option></term>
320
 
        <term><option>-x
321
 
        <replaceable>TIME</replaceable></option></term>
322
 
        <listitem>
323
 
          <para>
324
 
            Key expire time.  Default is no expiration.  See
325
 
            <citerefentry><refentrytitle>gpg</refentrytitle>
326
 
            <manvolnum>1</manvolnum></citerefentry> for syntax.
327
 
          </para>
328
 
        </listitem>
329
 
      </varlistentry>
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>
355
 
        <listitem>
356
 
          <para>
357
 
            Prompt for a password and encrypt it with the key already
358
 
            present in either <filename>/etc/keys/mandos</filename> or
359
 
            the directory specified with the <option>--dir</option>
360
 
            option.  Outputs, on standard output, a section suitable
361
 
            for inclusion in <citerefentry><refentrytitle
362
 
            >mandos-clients.conf</refentrytitle><manvolnum
363
 
            >8</manvolnum></citerefentry>.  The host name or the name
364
 
            specified with the <option>--name</option> option is used
365
 
            for the section header.  All other options are ignored,
366
 
            and no key is created.
367
 
          </para>
368
 
        </listitem>
369
 
      </varlistentry>
370
 
      <varlistentry>
371
 
        <term><option>--passfile
372
 
        <replaceable>FILE</replaceable></option></term>
373
 
        <term><option>-F
374
 
        <replaceable>FILE</replaceable></option></term>
375
 
        <listitem>
376
 
          <para>
377
 
            The same as <option>--password</option>, but read from
378
 
            <replaceable>FILE</replaceable>, not the terminal.
379
 
          </para>
380
 
        </listitem>
381
 
      </varlistentry>
382
 
      <varlistentry>
383
 
        <term><option>--no-ssh</option></term>
384
 
        <term><option>-S</option></term>
385
 
        <listitem>
386
 
          <para>
387
 
            When <option>--password</option> or
388
 
            <option>--passfile</option> is given, this option will
389
 
            prevent <command>&COMMANDNAME;</command> from calling
390
 
            <command>ssh-keyscan</command> to get an SSH fingerprint
391
 
            for this host and, if successful, output suitable config
392
 
            options to use this fingerprint as a
393
 
            <option>checker</option> option in the output.  This is
394
 
            otherwise the default behavior.
395
 
          </para>
396
 
        </listitem>
397
 
      </varlistentry>
398
 
    </variablelist>
399
 
  </refsect1>
400
 
  
401
 
  <refsect1 id="overview">
402
 
    <title>OVERVIEW</title>
403
 
    <xi:include href="overview.xml"/>
404
 
    <para>
405
 
      This program is a small utility to generate new TLS and OpenPGP
406
 
      keys for new Mandos clients, and to generate sections for
407
 
      inclusion in <filename>clients.conf</filename> on the server.
408
 
    </para>
409
 
  </refsect1>
410
 
  
411
 
  <refsect1 id="exit_status">
412
 
    <title>EXIT STATUS</title>
413
 
    <para>
414
 
      The exit status will be 0 if a new key (or password, if the
415
 
      <option>--password</option> option was used) was successfully
416
 
      created, otherwise not.
417
 
    </para>
418
 
  </refsect1>
419
 
  
420
 
  <refsect1 id="environment">
421
 
    <title>ENVIRONMENT</title>
422
 
    <variablelist>
423
 
      <varlistentry>
424
 
        <term><envar>TMPDIR</envar></term>
425
 
        <listitem>
426
 
          <para>
427
 
            If set, temporary files will be created here. See
428
 
            <citerefentry><refentrytitle>mktemp</refentrytitle>
429
 
            <manvolnum>1</manvolnum></citerefentry>.
430
 
          </para>
431
 
        </listitem>
432
 
      </varlistentry>
433
 
    </variablelist>
434
 
  </refsect1>
435
 
  
436
 
  <refsect1 id="files">
437
 
    <title>FILES</title>
438
 
    <para>
439
 
      Use the <option>--dir</option> option to change where
440
 
      <command>&COMMANDNAME;</command> will write the key files.  The
441
 
      default file names are shown here.
442
 
    </para>
443
 
    <variablelist>
444
 
      <varlistentry>
445
 
        <term><filename>/etc/keys/mandos/seckey.txt</filename></term>
446
 
        <listitem>
447
 
          <para>
448
 
            OpenPGP secret key file which will be created or
449
 
            overwritten.
450
 
          </para>
451
 
        </listitem>
452
 
      </varlistentry>
453
 
      <varlistentry>
454
 
        <term><filename>/etc/keys/mandos/pubkey.txt</filename></term>
455
 
        <listitem>
456
 
          <para>
457
 
            OpenPGP public key file which will be created or
458
 
            overwritten.
459
 
          </para>
460
 
        </listitem>
461
 
      </varlistentry>
462
 
      <varlistentry>
463
 
        <term><filename>/etc/keys/mandos/tls-privkey.pem</filename></term>
464
 
        <listitem>
465
 
          <para>
466
 
            Private key file which will be created or overwritten.
467
 
          </para>
468
 
        </listitem>
469
 
      </varlistentry>
470
 
      <varlistentry>
471
 
        <term><filename>/etc/keys/mandos/tls-pubkey.pem</filename></term>
472
 
        <listitem>
473
 
          <para>
474
 
            Public key file which will be created or overwritten.
475
 
          </para>
476
 
        </listitem>
477
 
      </varlistentry>
478
 
      <varlistentry>
479
 
        <term><filename class="directory">/tmp</filename></term>
480
 
        <listitem>
481
 
          <para>
482
 
            Temporary files will be written here if
483
 
            <varname>TMPDIR</varname> is not set.
484
 
          </para>
485
 
        </listitem>
486
 
      </varlistentry>
487
 
    </variablelist>
488
 
  </refsect1>
489
 
  
490
 
  <refsect1 id="bugs">
491
 
    <title>BUGS</title>
492
 
    <xi:include href="bugs.xml"/>
493
 
  </refsect1>
494
 
  
495
 
  <refsect1 id="example">
496
 
    <title>EXAMPLE</title>
497
 
    <informalexample>
498
 
      <para>
499
 
        Normal invocation needs no options:
500
 
      </para>
501
 
      <para>
502
 
        <userinput>&COMMANDNAME;</userinput>
503
 
      </para>
504
 
    </informalexample>
505
 
    <informalexample>
506
 
      <para>
507
 
        Create key in another directory and of another type.  Force
508
 
        overwriting old key files:
509
 
      </para>
510
 
      <para>
511
 
 
512
 
<!-- do not wrap this line -->
513
 
<userinput>&COMMANDNAME; --dir ~/keydir --type RSA --force</userinput>
514
 
 
515
 
      </para>
516
 
    </informalexample>
517
 
    <informalexample>
518
 
      <para>
519
 
        Prompt for a password, encrypt it with the keys in <filename
520
 
        class="directory">/etc/keys/mandos</filename> and output a
521
 
        section suitable for <filename>clients.conf</filename>.
522
 
      </para>
523
 
      <para>
524
 
        <userinput>&COMMANDNAME; --password</userinput>
525
 
      </para>
526
 
    </informalexample>
527
 
    <informalexample>
528
 
      <para>
529
 
        Prompt for a password, encrypt it with the keys in the
530
 
        <filename>client-key</filename> directory and output a section
531
 
        suitable for <filename>clients.conf</filename>.
532
 
      </para>
533
 
      <para>
534
 
 
535
 
<!-- do not wrap this line -->
536
 
<userinput>&COMMANDNAME; --password --dir client-key</userinput>
537
 
 
538
 
      </para>
539
 
    </informalexample>
540
 
  </refsect1>
541
 
  
542
 
  <refsect1 id="security">
543
 
    <title>SECURITY</title>
544
 
    <para>
545
 
      The <option>--type</option>, <option>--length</option>,
546
 
      <option>--subtype</option>, and <option>--sublength</option>
547
 
      options can be used to create keys of low security.  If in
548
 
      doubt, leave them to the default values.
549
 
    </para>
550
 
    <para>
551
 
      The key expire time is <emphasis>not</emphasis> guaranteed to be
552
 
      honored by <citerefentry><refentrytitle>mandos</refentrytitle>
553
 
      <manvolnum>8</manvolnum></citerefentry>.
554
 
    </para>
555
 
  </refsect1>
556
 
  
557
 
  <refsect1 id="see_also">
558
 
    <title>SEE ALSO</title>
559
 
    <para>
560
 
      <citerefentry><refentrytitle>intro</refentrytitle>
561
 
      <manvolnum>8mandos</manvolnum></citerefentry>,
562
 
      <citerefentry><refentrytitle>gpg</refentrytitle>
563
 
      <manvolnum>1</manvolnum></citerefentry>,
564
 
      <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
565
 
      <manvolnum>5</manvolnum></citerefentry>,
566
 
      <citerefentry><refentrytitle>mandos</refentrytitle>
567
 
      <manvolnum>8</manvolnum></citerefentry>,
568
 
      <citerefentry><refentrytitle>mandos-client</refentrytitle>
569
 
      <manvolnum>8mandos</manvolnum></citerefentry>,
570
 
      <citerefentry><refentrytitle>ssh-keyscan</refentrytitle>
571
 
      <manvolnum>1</manvolnum></citerefentry>
572
 
    </para>
573
 
  </refsect1>
574
 
  
575
 
</refentry>
576
 
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577
 
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578
 
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579
 
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580
 
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