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  • Committer: Teddy Hogeborn
  • Date: 2017-01-25 19:24:00 UTC
  • mfrom: (891 trunk)
  • mto: This revision was merged to the branch mainline in revision 892.
  • Revision ID: teddy@recompile.se-20170125192400-qska3g89wkwg0ccu
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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">
 
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<!ENTITY TIMESTAMP "2016-03-05">
 
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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">
 
11
  <refentryinfo>
 
12
    <title>Mandos Manual</title>
 
13
    <!-- NWalsh’s docbook scripts use this to generate the footer: -->
 
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    <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
      <holder>Teddy Hogeborn</holder>
 
44
      <holder>Björn Påhlsson</holder>
 
45
    </copyright>
 
46
    <xi:include href="legalnotice.xml"/>
 
47
  </refentryinfo>
 
48
  
 
49
  <refmeta>
 
50
    <refentrytitle>&COMMANDNAME;</refentrytitle>
 
51
    <manvolnum>8</manvolnum>
 
52
  </refmeta>
 
53
  
 
54
  <refnamediv>
 
55
    <refname><command>&COMMANDNAME;</command></refname>
 
56
    <refpurpose>
 
57
      Generate key and password for Mandos client and server.
 
58
    </refpurpose>
 
59
  </refnamediv>
 
60
  
 
61
  <refsynopsisdiv>
 
62
    <cmdsynopsis>
 
63
      <command>&COMMANDNAME;</command>
 
64
      <group>
 
65
        <arg choice="plain"><option>--dir
 
66
        <replaceable>DIRECTORY</replaceable></option></arg>
 
67
        <arg choice="plain"><option>-d
 
68
        <replaceable>DIRECTORY</replaceable></option></arg>
 
69
      </group>
 
70
      <sbr/>
 
71
      <group>
 
72
        <arg choice="plain"><option>--type
 
73
        <replaceable>KEYTYPE</replaceable></option></arg>
 
74
        <arg choice="plain"><option>-t
 
75
        <replaceable>KEYTYPE</replaceable></option></arg>
 
76
      </group>
 
77
      <sbr/>
 
78
      <group>
 
79
        <arg choice="plain"><option>--length
 
80
        <replaceable>BITS</replaceable></option></arg>
 
81
        <arg choice="plain"><option>-l
 
82
        <replaceable>BITS</replaceable></option></arg>
 
83
      </group>
 
84
      <sbr/>
 
85
      <group>
 
86
        <arg choice="plain"><option>--subtype
 
87
        <replaceable>KEYTYPE</replaceable></option></arg>
 
88
        <arg choice="plain"><option>-s
 
89
        <replaceable>KEYTYPE</replaceable></option></arg>
 
90
      </group>
 
91
      <sbr/>
 
92
      <group>
 
93
        <arg choice="plain"><option>--sublength
 
94
        <replaceable>BITS</replaceable></option></arg>
 
95
        <arg choice="plain"><option>-L
 
96
        <replaceable>BITS</replaceable></option></arg>
 
97
      </group>
 
98
      <sbr/>
 
99
      <group>
 
100
        <arg choice="plain"><option>--name
 
101
        <replaceable>NAME</replaceable></option></arg>
 
102
        <arg choice="plain"><option>-n
 
103
        <replaceable>NAME</replaceable></option></arg>
 
104
      </group>
 
105
      <sbr/>
 
106
      <group>
 
107
        <arg choice="plain"><option>--email
 
108
        <replaceable>ADDRESS</replaceable></option></arg>
 
109
        <arg choice="plain"><option>-e
 
110
        <replaceable>ADDRESS</replaceable></option></arg>
 
111
      </group>
 
112
      <sbr/>
 
113
      <group>
 
114
        <arg choice="plain"><option>--comment
 
115
        <replaceable>TEXT</replaceable></option></arg>
 
116
        <arg choice="plain"><option>-c
 
117
        <replaceable>TEXT</replaceable></option></arg>
 
118
      </group>
 
119
      <sbr/>
 
120
      <group>
 
121
        <arg choice="plain"><option>--expire
 
122
        <replaceable>TIME</replaceable></option></arg>
 
123
        <arg choice="plain"><option>-x
 
124
        <replaceable>TIME</replaceable></option></arg>
 
125
      </group>
 
126
      <sbr/>
 
127
      <group>
 
128
        <arg choice="plain"><option>--force</option></arg>
 
129
        <arg choice="plain"><option>-f</option></arg>
 
130
      </group>
 
131
    </cmdsynopsis>
 
132
    <cmdsynopsis>
 
133
      <command>&COMMANDNAME;</command>
 
134
      <group choice="req">
 
135
        <arg choice="plain"><option>--password</option></arg>
 
136
        <arg choice="plain"><option>-p</option></arg>
 
137
        <arg choice="plain"><option>--passfile
 
138
        <replaceable>FILE</replaceable></option></arg>
 
139
        <arg choice="plain"><option>-F</option>
 
140
        <replaceable>FILE</replaceable></arg>
 
141
      </group>
 
142
      <sbr/>
 
143
      <group>
 
144
        <arg choice="plain"><option>--dir
 
145
        <replaceable>DIRECTORY</replaceable></option></arg>
 
146
        <arg choice="plain"><option>-d
 
147
        <replaceable>DIRECTORY</replaceable></option></arg>
 
148
      </group>
 
149
      <sbr/>
 
150
      <group>
 
151
        <arg choice="plain"><option>--name
 
152
        <replaceable>NAME</replaceable></option></arg>
 
153
        <arg choice="plain"><option>-n
 
154
        <replaceable>NAME</replaceable></option></arg>
 
155
      </group>
 
156
      <group>
 
157
        <arg choice="plain"><option>--no-ssh</option></arg>
 
158
        <arg choice="plain"><option>-S</option></arg>
 
159
      </group>
 
160
    </cmdsynopsis>
 
161
    <cmdsynopsis>
 
162
      <command>&COMMANDNAME;</command>
 
163
      <group choice="req">
 
164
        <arg choice="plain"><option>--help</option></arg>
 
165
        <arg choice="plain"><option>-h</option></arg>
 
166
      </group>
 
167
    </cmdsynopsis>
 
168
    <cmdsynopsis>
 
169
      <command>&COMMANDNAME;</command>
 
170
      <group choice="req">
 
171
        <arg choice="plain"><option>--version</option></arg>
 
172
        <arg choice="plain"><option>-v</option></arg>
 
173
      </group>
 
174
    </cmdsynopsis>
 
175
  </refsynopsisdiv>
 
176
  
 
177
  <refsect1 id="description">
 
178
    <title>DESCRIPTION</title>
 
179
    <para>
 
180
      <command>&COMMANDNAME;</command> is a program to generate the
 
181
      OpenPGP key used by
 
182
      <citerefentry><refentrytitle>mandos-client</refentrytitle>
 
183
      <manvolnum>8mandos</manvolnum></citerefentry>.  The key is
 
184
      normally written to /etc/mandos for later installation into the
 
185
      initrd image, but this, and most other things, can be changed
 
186
      with command line options.
 
187
    </para>
 
188
    <para>
 
189
      This program can also be used with the
 
190
      <option>--password</option> or <option>--passfile</option>
 
191
      options to generate a ready-made section for
 
192
      <filename>clients.conf</filename> (see
 
193
      <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
 
194
      <manvolnum>5</manvolnum></citerefentry>).
 
195
    </para>
 
196
  </refsect1>
 
197
  
 
198
  <refsect1 id="purpose">
 
199
    <title>PURPOSE</title>
 
200
    <para>
 
201
      The purpose of this is to enable <emphasis>remote and unattended
 
202
      rebooting</emphasis> of client host computer with an
 
203
      <emphasis>encrypted root file system</emphasis>.  See <xref
 
204
      linkend="overview"/> for details.
 
205
    </para>
 
206
  </refsect1>
 
207
  
 
208
  <refsect1 id="options">
 
209
    <title>OPTIONS</title>
 
210
    
 
211
    <variablelist>
 
212
      <varlistentry>
 
213
        <term><option>--help</option></term>
 
214
        <term><option>-h</option></term>
 
215
        <listitem>
 
216
          <para>
 
217
            Show a help message and exit
 
218
          </para>
 
219
        </listitem>
 
220
      </varlistentry>
 
221
      
 
222
      <varlistentry>
 
223
        <term><option>--dir
 
224
        <replaceable>DIRECTORY</replaceable></option></term>
 
225
        <term><option>-d
 
226
        <replaceable>DIRECTORY</replaceable></option></term>
 
227
        <listitem>
 
228
          <para>
 
229
            Target directory for key files.  Default is
 
230
            <filename class="directory">/etc/mandos</filename>.
 
231
          </para>
 
232
        </listitem>
 
233
      </varlistentry>
 
234
      
 
235
      <varlistentry>
 
236
        <term><option>--type
 
237
        <replaceable>TYPE</replaceable></option></term>
 
238
        <term><option>-t
 
239
        <replaceable>TYPE</replaceable></option></term>
 
240
        <listitem>
 
241
          <para>
 
242
            Key type.  Default is <quote>RSA</quote>.
 
243
          </para>
 
244
        </listitem>
 
245
      </varlistentry>
 
246
      
 
247
      <varlistentry>
 
248
        <term><option>--length
 
249
        <replaceable>BITS</replaceable></option></term>
 
250
        <term><option>-l
 
251
        <replaceable>BITS</replaceable></option></term>
 
252
        <listitem>
 
253
          <para>
 
254
            Key length in bits.  Default is 4096.
 
255
          </para>
 
256
        </listitem>
 
257
      </varlistentry>
 
258
      
 
259
      <varlistentry>
 
260
        <term><option>--subtype
 
261
        <replaceable>KEYTYPE</replaceable></option></term>
 
262
        <term><option>-s
 
263
        <replaceable>KEYTYPE</replaceable></option></term>
 
264
        <listitem>
 
265
          <para>
 
266
            Subkey type.  Default is <quote>RSA</quote> (Elgamal
 
267
            encryption-only).
 
268
          </para>
 
269
        </listitem>
 
270
      </varlistentry>
 
271
      
 
272
      <varlistentry>
 
273
        <term><option>--sublength
 
274
        <replaceable>BITS</replaceable></option></term>
 
275
        <term><option>-L
 
276
        <replaceable>BITS</replaceable></option></term>
 
277
        <listitem>
 
278
          <para>
 
279
            Subkey length in bits.  Default is 4096.
 
280
          </para>
 
281
        </listitem>
 
282
      </varlistentry>
 
283
      
 
284
      <varlistentry>
 
285
        <term><option>--email
 
286
        <replaceable>ADDRESS</replaceable></option></term>
 
287
        <term><option>-e
 
288
        <replaceable>ADDRESS</replaceable></option></term>
 
289
        <listitem>
 
290
          <para>
 
291
            Email address of key.  Default is empty.
 
292
          </para>
 
293
        </listitem>
 
294
      </varlistentry>
 
295
      
 
296
      <varlistentry>
 
297
        <term><option>--comment
 
298
        <replaceable>TEXT</replaceable></option></term>
 
299
        <term><option>-c
 
300
        <replaceable>TEXT</replaceable></option></term>
 
301
        <listitem>
 
302
          <para>
 
303
            Comment field for key.  Default is empty.
 
304
          </para>
 
305
        </listitem>
 
306
      </varlistentry>
 
307
      
 
308
      <varlistentry>
 
309
        <term><option>--expire
 
310
        <replaceable>TIME</replaceable></option></term>
 
311
        <term><option>-x
 
312
        <replaceable>TIME</replaceable></option></term>
 
313
        <listitem>
 
314
          <para>
 
315
            Key expire time.  Default is no expiration.  See
 
316
            <citerefentry><refentrytitle>gpg</refentrytitle>
 
317
            <manvolnum>1</manvolnum></citerefentry> for syntax.
 
318
          </para>
 
319
        </listitem>
 
320
      </varlistentry>
 
321
      
 
322
      <varlistentry>
 
323
        <term><option>--force</option></term>
 
324
        <term><option>-f</option></term>
 
325
        <listitem>
 
326
          <para>
 
327
            Force overwriting old key.
 
328
          </para>
 
329
        </listitem>
 
330
      </varlistentry>
 
331
      <varlistentry>
 
332
        <term><option>--password</option></term>
 
333
        <term><option>-p</option></term>
 
334
        <listitem>
 
335
          <para>
 
336
            Prompt for a password and encrypt it with the key already
 
337
            present in either <filename>/etc/mandos</filename> or the
 
338
            directory specified with the <option>--dir</option>
 
339
            option.  Outputs, on standard output, a section suitable
 
340
            for inclusion in <citerefentry><refentrytitle
 
341
            >mandos-clients.conf</refentrytitle><manvolnum
 
342
            >8</manvolnum></citerefentry>.  The host name or the name
 
343
            specified with the <option>--name</option> option is used
 
344
            for the section header.  All other options are ignored,
 
345
            and no key is created.
 
346
          </para>
 
347
        </listitem>
 
348
      </varlistentry>
 
349
      <varlistentry>
 
350
        <term><option>--passfile
 
351
        <replaceable>FILE</replaceable></option></term>
 
352
        <term><option>-F
 
353
        <replaceable>FILE</replaceable></option></term>
 
354
        <listitem>
 
355
          <para>
 
356
            The same as <option>--password</option>, but read from
 
357
            <replaceable>FILE</replaceable>, not the terminal.
 
358
          </para>
 
359
        </listitem>
 
360
      </varlistentry>
 
361
      <varlistentry>
 
362
        <term><option>--no-ssh</option></term>
 
363
        <term><option>-S</option></term>
 
364
        <listitem>
 
365
          <para>
 
366
            When <option>--password</option> or
 
367
            <option>--passfile</option> is given, this option will
 
368
            prevent <command>&COMMANDNAME;</command> from calling
 
369
            <command>ssh-keyscan</command> to get an SSH fingerprint
 
370
            for this host and, if successful, output suitable config
 
371
            options to use this fingerprint as a
 
372
            <option>checker</option> option in the output.  This is
 
373
            otherwise the default behavior.
 
374
          </para>
 
375
        </listitem>
 
376
      </varlistentry>
 
377
    </variablelist>
 
378
  </refsect1>
 
379
  
 
380
  <refsect1 id="overview">
 
381
    <title>OVERVIEW</title>
 
382
    <xi:include href="overview.xml"/>
 
383
    <para>
 
384
      This program is a small utility to generate new OpenPGP keys for
 
385
      new Mandos clients, and to generate sections for inclusion in
 
386
      <filename>clients.conf</filename> on the server.
 
387
    </para>
 
388
  </refsect1>
 
389
  
 
390
  <refsect1 id="exit_status">
 
391
    <title>EXIT STATUS</title>
 
392
    <para>
 
393
      The exit status will be 0 if a new key (or password, if the
 
394
      <option>--password</option> option was used) was successfully
 
395
      created, otherwise not.
 
396
    </para>
 
397
  </refsect1>
 
398
  
 
399
  <refsect1 id="environment">
 
400
    <title>ENVIRONMENT</title>
 
401
    <variablelist>
 
402
      <varlistentry>
 
403
        <term><envar>TMPDIR</envar></term>
 
404
        <listitem>
 
405
          <para>
 
406
            If set, temporary files will be created here. See
 
407
            <citerefentry><refentrytitle>mktemp</refentrytitle>
 
408
            <manvolnum>1</manvolnum></citerefentry>.
 
409
          </para>
 
410
        </listitem>
 
411
      </varlistentry>
 
412
    </variablelist>
 
413
  </refsect1>
 
414
  
 
415
  <refsect1 id="files">
 
416
    <title>FILES</title>
 
417
    <para>
 
418
      Use the <option>--dir</option> option to change where
 
419
      <command>&COMMANDNAME;</command> will write the key files.  The
 
420
      default file names are shown here.
 
421
    </para>
 
422
    <variablelist>
 
423
      <varlistentry>
 
424
        <term><filename>/etc/mandos/seckey.txt</filename></term>
 
425
        <listitem>
 
426
          <para>
 
427
            OpenPGP secret key file which will be created or
 
428
            overwritten.
 
429
          </para>
 
430
        </listitem>
 
431
      </varlistentry>
 
432
      <varlistentry>
 
433
        <term><filename>/etc/mandos/pubkey.txt</filename></term>
 
434
        <listitem>
 
435
          <para>
 
436
            OpenPGP public key file which will be created or
 
437
            overwritten.
 
438
          </para>
 
439
        </listitem>
 
440
      </varlistentry>
 
441
      <varlistentry>
 
442
        <term><filename class="directory">/tmp</filename></term>
 
443
        <listitem>
 
444
          <para>
 
445
            Temporary files will be written here if
 
446
            <varname>TMPDIR</varname> is not set.
 
447
          </para>
 
448
        </listitem>
 
449
      </varlistentry>
 
450
    </variablelist>
 
451
  </refsect1>
 
452
  
 
453
  <refsect1 id="bugs">
 
454
    <title>BUGS</title>
 
455
    <xi:include href="bugs.xml"/>
 
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
<!-- do not wrap this line -->
 
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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540
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