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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 "2014-06-22">
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<!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>2011</year>
37
 
      <year>2012</year>
38
 
      <holder>Teddy Hogeborn</holder>
39
 
      <holder>Björn Påhlsson</holder>
40
 
    </copyright>
41
 
    <xi:include href="legalnotice.xml"/>
42
 
  </refentryinfo>
43
 
  
44
 
  <refmeta>
45
 
    <refentrytitle>&COMMANDNAME;</refentrytitle>
46
 
    <manvolnum>8</manvolnum>
47
 
  </refmeta>
48
 
  
49
 
  <refnamediv>
50
 
    <refname><command>&COMMANDNAME;</command></refname>
51
 
    <refpurpose>
52
 
      Generate key and password for Mandos client and server.
53
 
    </refpurpose>
54
 
  </refnamediv>
55
 
  
56
 
  <refsynopsisdiv>
57
 
    <cmdsynopsis>
58
 
      <command>&COMMANDNAME;</command>
59
 
      <group>
60
 
        <arg choice="plain"><option>--dir
61
 
        <replaceable>DIRECTORY</replaceable></option></arg>
62
 
        <arg choice="plain"><option>-d
63
 
        <replaceable>DIRECTORY</replaceable></option></arg>
64
 
      </group>
65
 
      <sbr/>
66
 
      <group>
67
 
        <arg choice="plain"><option>--type
68
 
        <replaceable>KEYTYPE</replaceable></option></arg>
69
 
        <arg choice="plain"><option>-t
70
 
        <replaceable>KEYTYPE</replaceable></option></arg>
71
 
      </group>
72
 
      <sbr/>
73
 
      <group>
74
 
        <arg choice="plain"><option>--length
75
 
        <replaceable>BITS</replaceable></option></arg>
76
 
        <arg choice="plain"><option>-l
77
 
        <replaceable>BITS</replaceable></option></arg>
78
 
      </group>
79
 
      <sbr/>
80
 
      <group>
81
 
        <arg choice="plain"><option>--subtype
82
 
        <replaceable>KEYTYPE</replaceable></option></arg>
83
 
        <arg choice="plain"><option>-s
84
 
        <replaceable>KEYTYPE</replaceable></option></arg>
85
 
      </group>
86
 
      <sbr/>
87
 
      <group>
88
 
        <arg choice="plain"><option>--sublength
89
 
        <replaceable>BITS</replaceable></option></arg>
90
 
        <arg choice="plain"><option>-L
91
 
        <replaceable>BITS</replaceable></option></arg>
92
 
      </group>
93
 
      <sbr/>
94
 
      <group>
95
 
        <arg choice="plain"><option>--name
96
 
        <replaceable>NAME</replaceable></option></arg>
97
 
        <arg choice="plain"><option>-n
98
 
        <replaceable>NAME</replaceable></option></arg>
99
 
      </group>
100
 
      <sbr/>
101
 
      <group>
102
 
        <arg choice="plain"><option>--email
103
 
        <replaceable>ADDRESS</replaceable></option></arg>
104
 
        <arg choice="plain"><option>-e
105
 
        <replaceable>ADDRESS</replaceable></option></arg>
106
 
      </group>
107
 
      <sbr/>
108
 
      <group>
109
 
        <arg choice="plain"><option>--comment
110
 
        <replaceable>TEXT</replaceable></option></arg>
111
 
        <arg choice="plain"><option>-c
112
 
        <replaceable>TEXT</replaceable></option></arg>
113
 
      </group>
114
 
      <sbr/>
115
 
      <group>
116
 
        <arg choice="plain"><option>--expire
117
 
        <replaceable>TIME</replaceable></option></arg>
118
 
        <arg choice="plain"><option>-x
119
 
        <replaceable>TIME</replaceable></option></arg>
120
 
      </group>
121
 
      <sbr/>
122
 
      <group>
123
 
        <arg choice="plain"><option>--force</option></arg>
124
 
        <arg choice="plain"><option>-f</option></arg>
125
 
      </group>
126
 
    </cmdsynopsis>
127
 
    <cmdsynopsis>
128
 
      <command>&COMMANDNAME;</command>
129
 
      <group choice="req">
130
 
        <arg choice="plain"><option>--password</option></arg>
131
 
        <arg choice="plain"><option>-p</option></arg>
132
 
        <arg choice="plain"><option>--passfile
133
 
        <replaceable>FILE</replaceable></option></arg>
134
 
        <arg choice="plain"><option>-F</option>
135
 
        <replaceable>FILE</replaceable></arg>
136
 
      </group>
137
 
      <sbr/>
138
 
      <group>
139
 
        <arg choice="plain"><option>--dir
140
 
        <replaceable>DIRECTORY</replaceable></option></arg>
141
 
        <arg choice="plain"><option>-d
142
 
        <replaceable>DIRECTORY</replaceable></option></arg>
143
 
      </group>
144
 
      <sbr/>
145
 
      <group>
146
 
        <arg choice="plain"><option>--name
147
 
        <replaceable>NAME</replaceable></option></arg>
148
 
        <arg choice="plain"><option>-n
149
 
        <replaceable>NAME</replaceable></option></arg>
150
 
      </group>
151
 
      <group>
152
 
        <arg choice="plain"><option>--no-ssh</option></arg>
153
 
        <arg choice="plain"><option>-S</option></arg>
154
 
      </group>
155
 
    </cmdsynopsis>
156
 
    <cmdsynopsis>
157
 
      <command>&COMMANDNAME;</command>
158
 
      <group choice="req">
159
 
        <arg choice="plain"><option>--help</option></arg>
160
 
        <arg choice="plain"><option>-h</option></arg>
161
 
      </group>
162
 
    </cmdsynopsis>
163
 
    <cmdsynopsis>
164
 
      <command>&COMMANDNAME;</command>
165
 
      <group choice="req">
166
 
        <arg choice="plain"><option>--version</option></arg>
167
 
        <arg choice="plain"><option>-v</option></arg>
168
 
      </group>
169
 
    </cmdsynopsis>
170
 
  </refsynopsisdiv>
171
 
  
172
 
  <refsect1 id="description">
173
 
    <title>DESCRIPTION</title>
174
 
    <para>
175
 
      <command>&COMMANDNAME;</command> is a program to generate the
176
 
      OpenPGP key used by
177
 
      <citerefentry><refentrytitle>mandos-client</refentrytitle>
178
 
      <manvolnum>8mandos</manvolnum></citerefentry>.  The key is
179
 
      normally written to /etc/mandos for later installation into the
180
 
      initrd image, but this, and most other things, can be changed
181
 
      with command line options.
182
 
    </para>
183
 
    <para>
184
 
      This program can also be used with the
185
 
      <option>--password</option> or <option>--passfile</option>
186
 
      options to generate a ready-made section for
187
 
      <filename>clients.conf</filename> (see
188
 
      <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
189
 
      <manvolnum>5</manvolnum></citerefentry>).
190
 
    </para>
191
 
  </refsect1>
192
 
  
193
 
  <refsect1 id="purpose">
194
 
    <title>PURPOSE</title>
195
 
    <para>
196
 
      The purpose of this is to enable <emphasis>remote and unattended
197
 
      rebooting</emphasis> of client host computer with an
198
 
      <emphasis>encrypted root file system</emphasis>.  See <xref
199
 
      linkend="overview"/> for details.
200
 
    </para>
201
 
  </refsect1>
202
 
  
203
 
  <refsect1 id="options">
204
 
    <title>OPTIONS</title>
205
 
    
206
 
    <variablelist>
207
 
      <varlistentry>
208
 
        <term><option>--help</option></term>
209
 
        <term><option>-h</option></term>
210
 
        <listitem>
211
 
          <para>
212
 
            Show a help message and exit
213
 
          </para>
214
 
        </listitem>
215
 
      </varlistentry>
216
 
      
217
 
      <varlistentry>
218
 
        <term><option>--dir
219
 
        <replaceable>DIRECTORY</replaceable></option></term>
220
 
        <term><option>-d
221
 
        <replaceable>DIRECTORY</replaceable></option></term>
222
 
        <listitem>
223
 
          <para>
224
 
            Target directory for key files.  Default is
225
 
            <filename class="directory">/etc/mandos</filename>.
226
 
          </para>
227
 
        </listitem>
228
 
      </varlistentry>
229
 
      
230
 
      <varlistentry>
231
 
        <term><option>--type
232
 
        <replaceable>TYPE</replaceable></option></term>
233
 
        <term><option>-t
234
 
        <replaceable>TYPE</replaceable></option></term>
235
 
        <listitem>
236
 
          <para>
237
 
            Key type.  Default is <quote>RSA</quote>.
238
 
          </para>
239
 
        </listitem>
240
 
      </varlistentry>
241
 
      
242
 
      <varlistentry>
243
 
        <term><option>--length
244
 
        <replaceable>BITS</replaceable></option></term>
245
 
        <term><option>-l
246
 
        <replaceable>BITS</replaceable></option></term>
247
 
        <listitem>
248
 
          <para>
249
 
            Key length in bits.  Default is 4096.
250
 
          </para>
251
 
        </listitem>
252
 
      </varlistentry>
253
 
      
254
 
      <varlistentry>
255
 
        <term><option>--subtype
256
 
        <replaceable>KEYTYPE</replaceable></option></term>
257
 
        <term><option>-s
258
 
        <replaceable>KEYTYPE</replaceable></option></term>
259
 
        <listitem>
260
 
          <para>
261
 
            Subkey type.  Default is <quote>RSA</quote> (Elgamal
262
 
            encryption-only).
263
 
          </para>
264
 
        </listitem>
265
 
      </varlistentry>
266
 
      
267
 
      <varlistentry>
268
 
        <term><option>--sublength
269
 
        <replaceable>BITS</replaceable></option></term>
270
 
        <term><option>-L
271
 
        <replaceable>BITS</replaceable></option></term>
272
 
        <listitem>
273
 
          <para>
274
 
            Subkey length in bits.  Default is 4096.
275
 
          </para>
276
 
        </listitem>
277
 
      </varlistentry>
278
 
      
279
 
      <varlistentry>
280
 
        <term><option>--email
281
 
        <replaceable>ADDRESS</replaceable></option></term>
282
 
        <term><option>-e
283
 
        <replaceable>ADDRESS</replaceable></option></term>
284
 
        <listitem>
285
 
          <para>
286
 
            Email address of key.  Default is empty.
287
 
          </para>
288
 
        </listitem>
289
 
      </varlistentry>
290
 
      
291
 
      <varlistentry>
292
 
        <term><option>--comment
293
 
        <replaceable>TEXT</replaceable></option></term>
294
 
        <term><option>-c
295
 
        <replaceable>TEXT</replaceable></option></term>
296
 
        <listitem>
297
 
          <para>
298
 
            Comment field for key.  Default is empty.
299
 
          </para>
300
 
        </listitem>
301
 
      </varlistentry>
302
 
      
303
 
      <varlistentry>
304
 
        <term><option>--expire
305
 
        <replaceable>TIME</replaceable></option></term>
306
 
        <term><option>-x
307
 
        <replaceable>TIME</replaceable></option></term>
308
 
        <listitem>
309
 
          <para>
310
 
            Key expire time.  Default is no expiration.  See
311
 
            <citerefentry><refentrytitle>gpg</refentrytitle>
312
 
            <manvolnum>1</manvolnum></citerefentry> for syntax.
313
 
          </para>
314
 
        </listitem>
315
 
      </varlistentry>
316
 
      
317
 
      <varlistentry>
318
 
        <term><option>--force</option></term>
319
 
        <term><option>-f</option></term>
320
 
        <listitem>
321
 
          <para>
322
 
            Force overwriting old key.
323
 
          </para>
324
 
        </listitem>
325
 
      </varlistentry>
326
 
      <varlistentry>
327
 
        <term><option>--password</option></term>
328
 
        <term><option>-p</option></term>
329
 
        <listitem>
330
 
          <para>
331
 
            Prompt for a password and encrypt it with the key already
332
 
            present in either <filename>/etc/mandos</filename> or the
333
 
            directory specified with the <option>--dir</option>
334
 
            option.  Outputs, on standard output, a section suitable
335
 
            for inclusion in <citerefentry><refentrytitle
336
 
            >mandos-clients.conf</refentrytitle><manvolnum
337
 
            >8</manvolnum></citerefentry>.  The host name or the name
338
 
            specified with the <option>--name</option> option is used
339
 
            for the section header.  All other options are ignored,
340
 
            and no key is created.
341
 
          </para>
342
 
        </listitem>
343
 
      </varlistentry>
344
 
      <varlistentry>
345
 
        <term><option>--passfile
346
 
        <replaceable>FILE</replaceable></option></term>
347
 
        <term><option>-F
348
 
        <replaceable>FILE</replaceable></option></term>
349
 
        <listitem>
350
 
          <para>
351
 
            The same as <option>--password</option>, but read from
352
 
            <replaceable>FILE</replaceable>, not the terminal.
353
 
          </para>
354
 
        </listitem>
355
 
      </varlistentry>
356
 
      <varlistentry>
357
 
        <term><option>--no-ssh</option></term>
358
 
        <term><option>-S</option></term>
359
 
        <listitem>
360
 
          <para>
361
 
            When <option>--password</option> or
362
 
            <option>--passfile</option> is given, this option will
363
 
            prevent <command>&COMMANDNAME;</command> from calling
364
 
            <command>ssh-keyscan</command> to get an SSH fingerprint
365
 
            for this host and, if successful, output suitable config
366
 
            options to use this fingerprint as a
367
 
            <option>checker</option> option in the output.  This is
368
 
            otherwise the default behavior.
369
 
          </para>
370
 
        </listitem>
371
 
      </varlistentry>
372
 
    </variablelist>
373
 
  </refsect1>
374
 
  
375
 
  <refsect1 id="overview">
376
 
    <title>OVERVIEW</title>
377
 
    <xi:include href="overview.xml"/>
378
 
    <para>
379
 
      This program is a small utility to generate new OpenPGP keys for
380
 
      new Mandos clients, and to generate sections for inclusion in
381
 
      <filename>clients.conf</filename> on the server.
382
 
    </para>
383
 
  </refsect1>
384
 
  
385
 
  <refsect1 id="exit_status">
386
 
    <title>EXIT STATUS</title>
387
 
    <para>
388
 
      The exit status will be 0 if a new key (or password, if the
389
 
      <option>--password</option> option was used) was successfully
390
 
      created, otherwise not.
391
 
    </para>
392
 
  </refsect1>
393
 
  
394
 
  <refsect1 id="environment">
395
 
    <title>ENVIRONMENT</title>
396
 
    <variablelist>
397
 
      <varlistentry>
398
 
        <term><envar>TMPDIR</envar></term>
399
 
        <listitem>
400
 
          <para>
401
 
            If set, temporary files will be created here. See
402
 
            <citerefentry><refentrytitle>mktemp</refentrytitle>
403
 
            <manvolnum>1</manvolnum></citerefentry>.
404
 
          </para>
405
 
        </listitem>
406
 
      </varlistentry>
407
 
    </variablelist>
408
 
  </refsect1>
409
 
  
410
 
  <refsect1 id="files">
411
 
    <title>FILES</title>
412
 
    <para>
413
 
      Use the <option>--dir</option> option to change where
414
 
      <command>&COMMANDNAME;</command> will write the key files.  The
415
 
      default file names are shown here.
416
 
    </para>
417
 
    <variablelist>
418
 
      <varlistentry>
419
 
        <term><filename>/etc/mandos/seckey.txt</filename></term>
420
 
        <listitem>
421
 
          <para>
422
 
            OpenPGP secret key file which will be created or
423
 
            overwritten.
424
 
          </para>
425
 
        </listitem>
426
 
      </varlistentry>
427
 
      <varlistentry>
428
 
        <term><filename>/etc/mandos/pubkey.txt</filename></term>
429
 
        <listitem>
430
 
          <para>
431
 
            OpenPGP public key file which will be created or
432
 
            overwritten.
433
 
          </para>
434
 
        </listitem>
435
 
      </varlistentry>
436
 
      <varlistentry>
437
 
        <term><filename class="directory">/tmp</filename></term>
438
 
        <listitem>
439
 
          <para>
440
 
            Temporary files will be written here if
441
 
            <varname>TMPDIR</varname> is not set.
442
 
          </para>
443
 
        </listitem>
444
 
      </varlistentry>
445
 
    </variablelist>
446
 
  </refsect1>
447
 
  
448
 
<!--   <refsect1 id="bugs"> -->
449
 
<!--     <title>BUGS</title> -->
450
 
<!--     <para> -->
451
 
<!--     </para> -->
452
 
<!--   </refsect1> -->
453
 
  
454
 
  <refsect1 id="example">
455
 
    <title>EXAMPLE</title>
456
 
    <informalexample>
457
 
      <para>
458
 
        Normal invocation needs no options:
459
 
      </para>
460
 
      <para>
461
 
        <userinput>&COMMANDNAME;</userinput>
462
 
      </para>
463
 
    </informalexample>
464
 
    <informalexample>
465
 
      <para>
466
 
        Create key in another directory and of another type.  Force
467
 
        overwriting old key files:
468
 
      </para>
469
 
      <para>
470
 
 
471
 
<!-- do not wrap this line -->
472
 
<userinput>&COMMANDNAME; --dir ~/keydir --type RSA --force</userinput>
473
 
 
474
 
      </para>
475
 
    </informalexample>
476
 
    <informalexample>
477
 
      <para>
478
 
        Prompt for a password, encrypt it with the key in <filename
479
 
        class="directory">/etc/mandos</filename> and output a section
480
 
        suitable for <filename>clients.conf</filename>.
481
 
      </para>
482
 
      <para>
483
 
        <userinput>&COMMANDNAME; --password</userinput>
484
 
      </para>
485
 
    </informalexample>
486
 
    <informalexample>
487
 
      <para>
488
 
        Prompt for a password, encrypt it with the key in the
489
 
        <filename>client-key</filename> directory and output a section
490
 
        suitable for <filename>clients.conf</filename>.
491
 
      </para>
492
 
      <para>
493
 
 
494
 
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495
 
<userinput>&COMMANDNAME; --password --dir client-key</userinput>
496
 
 
497
 
      </para>
498
 
    </informalexample>
499
 
  </refsect1>
500
 
  
501
 
  <refsect1 id="security">
502
 
    <title>SECURITY</title>
503
 
    <para>
504
 
      The <option>--type</option>, <option>--length</option>,
505
 
      <option>--subtype</option>, and <option>--sublength</option>
506
 
      options can be used to create keys of low security.  If in
507
 
      doubt, leave them to the default values.
508
 
    </para>
509
 
    <para>
510
 
      The key expire time is <emphasis>not</emphasis> guaranteed to be
511
 
      honored by <citerefentry><refentrytitle>mandos</refentrytitle>
512
 
      <manvolnum>8</manvolnum></citerefentry>.
513
 
    </para>
514
 
  </refsect1>
515
 
  
516
 
  <refsect1 id="see_also">
517
 
    <title>SEE ALSO</title>
518
 
    <para>
519
 
      <citerefentry><refentrytitle>intro</refentrytitle>
520
 
      <manvolnum>8mandos</manvolnum></citerefentry>,
521
 
      <citerefentry><refentrytitle>gpg</refentrytitle>
522
 
      <manvolnum>1</manvolnum></citerefentry>,
523
 
      <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
524
 
      <manvolnum>5</manvolnum></citerefentry>,
525
 
      <citerefentry><refentrytitle>mandos</refentrytitle>
526
 
      <manvolnum>8</manvolnum></citerefentry>,
527
 
      <citerefentry><refentrytitle>mandos-client</refentrytitle>
528
 
      <manvolnum>8mandos</manvolnum></citerefentry>,
529
 
      <citerefentry><refentrytitle>ssh-keyscan</refentrytitle>
530
 
      <manvolnum>1</manvolnum></citerefentry>
531
 
    </para>
532
 
  </refsect1>
533
 
  
534
 
</refentry>
535
 
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