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  • Committer: Teddy Hogeborn
  • Date: 2008-09-21 12:20:55 UTC
  • Revision ID: teddy@fukt.bsnet.se-20080921122055-vrs4tmw1az0yr92u
* mandos.xml (SECURITY): Minor wording improvement.

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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 VERSION "1.0">
 
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<!ENTITY COMMANDNAME "mandos-keygen">
 
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<!ENTITY TIMESTAMP "2008-09-20">
 
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]>
 
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<refentry xmlns:xi="http://www.w3.org/2001/XInclude">
 
10
  <refentryinfo>
 
11
    <title>Mandos Manual</title>
 
12
    <!-- NWalsh’s docbook scripts use this to generate the footer: -->
 
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    <productname>Mandos</productname>
 
14
    <productnumber>&VERSION;</productnumber>
 
15
    <date>&TIMESTAMP;</date>
 
16
    <authorgroup>
 
17
      <author>
 
18
        <firstname>Björn</firstname>
 
19
        <surname>Påhlsson</surname>
 
20
        <address>
 
21
          <email>belorn@fukt.bsnet.se</email>
 
22
        </address>
 
23
      </author>
 
24
      <author>
 
25
        <firstname>Teddy</firstname>
 
26
        <surname>Hogeborn</surname>
 
27
        <address>
 
28
          <email>teddy@fukt.bsnet.se</email>
 
29
        </address>
 
30
      </author>
 
31
    </authorgroup>
 
32
    <copyright>
 
33
      <year>2008</year>
 
34
      <holder>Teddy Hogeborn</holder>
 
35
      <holder>Björn Påhlsson</holder>
 
36
    </copyright>
 
37
    <xi:include href="legalnotice.xml"/>
 
38
  </refentryinfo>
 
39
  
 
40
  <refmeta>
 
41
    <refentrytitle>&COMMANDNAME;</refentrytitle>
 
42
    <manvolnum>8</manvolnum>
 
43
  </refmeta>
 
44
  
 
45
  <refnamediv>
 
46
    <refname><command>&COMMANDNAME;</command></refname>
 
47
    <refpurpose>
 
48
      Generate key and password for Mandos client and server.
 
49
    </refpurpose>
 
50
  </refnamediv>
 
51
  
 
52
  <refsynopsisdiv>
 
53
    <cmdsynopsis>
 
54
      <command>&COMMANDNAME;</command>
 
55
      <group>
 
56
        <arg choice="plain"><option>--dir
 
57
        <replaceable>DIRECTORY</replaceable></option></arg>
 
58
        <arg choice="plain"><option>-d
 
59
        <replaceable>DIRECTORY</replaceable></option></arg>
 
60
      </group>
 
61
      <sbr/>
 
62
      <group>
 
63
        <arg choice="plain"><option>--type
 
64
        <replaceable>KEYTYPE</replaceable></option></arg>
 
65
        <arg choice="plain"><option>-t
 
66
        <replaceable>KEYTYPE</replaceable></option></arg>
 
67
      </group>
 
68
      <sbr/>
 
69
      <group>
 
70
        <arg choice="plain"><option>--length
 
71
        <replaceable>BITS</replaceable></option></arg>
 
72
        <arg choice="plain"><option>-l
 
73
        <replaceable>BITS</replaceable></option></arg>
 
74
      </group>
 
75
      <sbr/>
 
76
      <group>
 
77
        <arg choice="plain"><option>--subtype
 
78
        <replaceable>KEYTYPE</replaceable></option></arg>
 
79
        <arg choice="plain"><option>-s
 
80
        <replaceable>KEYTYPE</replaceable></option></arg>
 
81
      </group>
 
82
      <sbr/>
 
83
      <group>
 
84
        <arg choice="plain"><option>--sublength
 
85
        <replaceable>BITS</replaceable></option></arg>
 
86
        <arg choice="plain"><option>-L
 
87
        <replaceable>BITS</replaceable></option></arg>
 
88
      </group>
 
89
      <sbr/>
 
90
      <group>
 
91
        <arg choice="plain"><option>--name
 
92
        <replaceable>NAME</replaceable></option></arg>
 
93
        <arg choice="plain"><option>-n
 
94
        <replaceable>NAME</replaceable></option></arg>
 
95
      </group>
 
96
      <sbr/>
 
97
      <group>
 
98
        <arg choice="plain"><option>--email
 
99
        <replaceable>ADDRESS</replaceable></option></arg>
 
100
        <arg choice="plain"><option>-e
 
101
        <replaceable>ADDRESS</replaceable></option></arg>
 
102
      </group>
 
103
      <sbr/>
 
104
      <group>
 
105
        <arg choice="plain"><option>--comment
 
106
        <replaceable>TEXT</replaceable></option></arg>
 
107
        <arg choice="plain"><option>-c
 
108
        <replaceable>TEXT</replaceable></option></arg>
 
109
      </group>
 
110
      <sbr/>
 
111
      <group>
 
112
        <arg choice="plain"><option>--expire
 
113
        <replaceable>TIME</replaceable></option></arg>
 
114
        <arg choice="plain"><option>-x
 
115
        <replaceable>TIME</replaceable></option></arg>
 
116
      </group>
 
117
      <sbr/>
 
118
      <arg><option>--force</option></arg>
 
119
    </cmdsynopsis>
 
120
    <cmdsynopsis>
 
121
      <command>&COMMANDNAME;</command>
 
122
      <group choice="req">
 
123
        <arg choice="plain"><option>--password</option></arg>
 
124
        <arg choice="plain"><option>-p</option></arg>
 
125
        <arg choice="plain"><option>--passfile
 
126
        <replaceable>FILE</replaceable></option></arg>
 
127
        <arg choice="plain"><option>-F</option>
 
128
        <replaceable>FILE</replaceable></arg>
 
129
      </group>
 
130
      <sbr/>
 
131
      <group>
 
132
        <arg choice="plain"><option>--dir
 
133
        <replaceable>DIRECTORY</replaceable></option></arg>
 
134
        <arg choice="plain"><option>-d
 
135
        <replaceable>DIRECTORY</replaceable></option></arg>
 
136
      </group>
 
137
      <sbr/>
 
138
      <group>
 
139
        <arg choice="plain"><option>--name
 
140
        <replaceable>NAME</replaceable></option></arg>
 
141
        <arg choice="plain"><option>-n
 
142
        <replaceable>NAME</replaceable></option></arg>
 
143
      </group>
 
144
    </cmdsynopsis>
 
145
    <cmdsynopsis>
 
146
      <command>&COMMANDNAME;</command>
 
147
      <group choice="req">
 
148
        <arg choice="plain"><option>--help</option></arg>
 
149
        <arg choice="plain"><option>-h</option></arg>
 
150
      </group>
 
151
    </cmdsynopsis>
 
152
    <cmdsynopsis>
 
153
      <command>&COMMANDNAME;</command>
 
154
      <group choice="req">
 
155
        <arg choice="plain"><option>--version</option></arg>
 
156
        <arg choice="plain"><option>-v</option></arg>
 
157
      </group>
 
158
    </cmdsynopsis>
 
159
  </refsynopsisdiv>
 
160
  
 
161
  <refsect1 id="description">
 
162
    <title>DESCRIPTION</title>
 
163
    <para>
 
164
      <command>&COMMANDNAME;</command> is a program to generate the
 
165
      OpenPGP key used by
 
166
      <citerefentry><refentrytitle>mandos-client</refentrytitle>
 
167
      <manvolnum>8mandos</manvolnum></citerefentry>.  The key is
 
168
      normally written to /etc/mandos for later installation into the
 
169
      initrd image, but this, and most other things, can be changed
 
170
      with command line options.
 
171
    </para>
 
172
    <para>
 
173
      This program can also be used with the
 
174
      <option>--password</option> or <option>--passfile</option>
 
175
      options to generate a ready-made section for
 
176
      <filename>clients.conf</filename> (see
 
177
      <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
 
178
      <manvolnum>5</manvolnum></citerefentry>).
 
179
    </para>
 
180
  </refsect1>
 
181
  
 
182
  <refsect1 id="purpose">
 
183
    <title>PURPOSE</title>
 
184
    <para>
 
185
      The purpose of this is to enable <emphasis>remote and unattended
 
186
      rebooting</emphasis> of client host computer with an
 
187
      <emphasis>encrypted root file system</emphasis>.  See <xref
 
188
      linkend="overview"/> for details.
 
189
    </para>
 
190
  </refsect1>
 
191
  
 
192
  <refsect1 id="options">
 
193
    <title>OPTIONS</title>
 
194
    
 
195
    <variablelist>
 
196
      <varlistentry>
 
197
        <term><option>--help</option></term>
 
198
        <term><option>-h</option></term>
 
199
        <listitem>
 
200
          <para>
 
201
            Show a help message and exit
 
202
          </para>
 
203
        </listitem>
 
204
      </varlistentry>
 
205
      
 
206
      <varlistentry>
 
207
        <term><option>--dir
 
208
        <replaceable>DIRECTORY</replaceable></option></term>
 
209
        <term><option>-d
 
210
        <replaceable>DIRECTORY</replaceable></option></term>
 
211
        <listitem>
 
212
          <para>
 
213
            Target directory for key files.  Default is
 
214
            <filename>/etc/mandos</filename>.
 
215
          </para>
 
216
        </listitem>
 
217
      </varlistentry>
 
218
      
 
219
      <varlistentry>
 
220
        <term><option>--type
 
221
        <replaceable>TYPE</replaceable></option></term>
 
222
        <term><option>-t
 
223
        <replaceable>TYPE</replaceable></option></term>
 
224
        <listitem>
 
225
          <para>
 
226
            Key type.  Default is <quote>DSA</quote>.
 
227
          </para>
 
228
        </listitem>
 
229
      </varlistentry>
 
230
      
 
231
      <varlistentry>
 
232
        <term><option>--length
 
233
        <replaceable>BITS</replaceable></option></term>
 
234
        <term><option>-l
 
235
        <replaceable>BITS</replaceable></option></term>
 
236
        <listitem>
 
237
          <para>
 
238
            Key length in bits.  Default is 2048.
 
239
          </para>
 
240
        </listitem>
 
241
      </varlistentry>
 
242
      
 
243
      <varlistentry>
 
244
        <term><option>--subtype
 
245
        <replaceable>KEYTYPE</replaceable></option></term>
 
246
        <term><option>-s
 
247
        <replaceable>KEYTYPE</replaceable></option></term>
 
248
        <listitem>
 
249
          <para>
 
250
            Subkey type.  Default is <quote>ELG-E</quote> (Elgamal
 
251
            encryption-only).
 
252
          </para>
 
253
        </listitem>
 
254
      </varlistentry>
 
255
      
 
256
      <varlistentry>
 
257
        <term><option>--sublength
 
258
        <replaceable>BITS</replaceable></option></term>
 
259
        <term><option>-L
 
260
        <replaceable>BITS</replaceable></option></term>
 
261
        <listitem>
 
262
          <para>
 
263
            Subkey length in bits.  Default is 2048.
 
264
          </para>
 
265
        </listitem>
 
266
      </varlistentry>
 
267
      
 
268
      <varlistentry>
 
269
        <term><option>--email
 
270
        <replaceable>ADDRESS</replaceable></option></term>
 
271
        <term><option>-e
 
272
        <replaceable>ADDRESS</replaceable></option></term>
 
273
        <listitem>
 
274
          <para>
 
275
            Email address of key.  Default is empty.
 
276
          </para>
 
277
        </listitem>
 
278
      </varlistentry>
 
279
      
 
280
      <varlistentry>
 
281
        <term><option>--comment
 
282
        <replaceable>TEXT</replaceable></option></term>
 
283
        <term><option>-c
 
284
        <replaceable>TEXT</replaceable></option></term>
 
285
        <listitem>
 
286
          <para>
 
287
            Comment field for key.  The default value is
 
288
            <quote><literal>Mandos client key</literal></quote>.
 
289
          </para>
 
290
        </listitem>
 
291
      </varlistentry>
 
292
      
 
293
      <varlistentry>
 
294
        <term><option>--expire
 
295
        <replaceable>TIME</replaceable></option></term>
 
296
        <term><option>-x
 
297
        <replaceable>TIME</replaceable></option></term>
 
298
        <listitem>
 
299
          <para>
 
300
            Key expire time.  Default is no expiration.  See
 
301
            <citerefentry><refentrytitle>gpg</refentrytitle>
 
302
            <manvolnum>1</manvolnum></citerefentry> for syntax.
 
303
          </para>
 
304
        </listitem>
 
305
      </varlistentry>
 
306
      
 
307
      <varlistentry>
 
308
        <term><option>--force</option></term>
 
309
        <term><option>-f</option></term>
 
310
        <listitem>
 
311
          <para>
 
312
            Force overwriting old key.
 
313
          </para>
 
314
        </listitem>
 
315
      </varlistentry>
 
316
      <varlistentry>
 
317
        <term><option>--password</option></term>
 
318
        <term><option>-p</option></term>
 
319
        <listitem>
 
320
          <para>
 
321
            Prompt for a password and encrypt it with the key already
 
322
            present in either <filename>/etc/mandos</filename> or the
 
323
            directory specified with the <option>--dir</option>
 
324
            option.  Outputs, on standard output, a section suitable
 
325
            for inclusion in <citerefentry><refentrytitle
 
326
            >mandos-clients.conf</refentrytitle><manvolnum
 
327
            >8</manvolnum></citerefentry>.  The host name or the name
 
328
            specified with the <option>--name</option> option is used
 
329
            for the section header.  All other options are ignored,
 
330
            and no key is created.
 
331
          </para>
 
332
        </listitem>
 
333
      </varlistentry>
 
334
      <varlistentry>
 
335
        <term><option>--passfile
 
336
        <replaceable>FILE</replaceable></option></term>
 
337
        <term><option>-F
 
338
        <replaceable>FILE</replaceable></option></term>
 
339
        <listitem>
 
340
          <para>
 
341
            The same as <option>--password</option>, but read from
 
342
            <replaceable>FILE</replaceable>, not the terminal.
 
343
          </para>
 
344
        </listitem>
 
345
      </varlistentry>
 
346
    </variablelist>
 
347
  </refsect1>
 
348
  
 
349
  <refsect1 id="overview">
 
350
    <title>OVERVIEW</title>
 
351
    <xi:include href="overview.xml"/>
 
352
    <para>
 
353
      This program is a small utility to generate new OpenPGP keys for
 
354
      new Mandos clients, and to generate sections for inclusion in
 
355
      <filename>clients.conf</filename> on the server.
 
356
    </para>
 
357
  </refsect1>
 
358
  
 
359
  <refsect1 id="exit_status">
 
360
    <title>EXIT STATUS</title>
 
361
    <para>
 
362
      The exit status will be 0 if a new key (or password, if the
 
363
      <option>--password</option> option was used) was successfully
 
364
      created, otherwise not.
 
365
    </para>
 
366
  </refsect1>
 
367
  
 
368
  <refsect1 id="environment">
 
369
    <title>ENVIRONMENT</title>
 
370
    <variablelist>
 
371
      <varlistentry>
 
372
        <term><envar>TMPDIR</envar></term>
 
373
        <listitem>
 
374
          <para>
 
375
            If set, temporary files will be created here. See
 
376
            <citerefentry><refentrytitle>mktemp</refentrytitle>
 
377
            <manvolnum>1</manvolnum></citerefentry>.
 
378
          </para>
 
379
        </listitem>
 
380
      </varlistentry>
 
381
    </variablelist>
 
382
  </refsect1>
 
383
  
 
384
  <refsect1 id="file">
 
385
    <title>FILES</title>
 
386
    <para>
 
387
      Use the <option>--dir</option> option to change where
 
388
      <command>&COMMANDNAME;</command> will write the key files.  The
 
389
      default file names are shown here.
 
390
    </para>
 
391
    <variablelist>
 
392
      <varlistentry>
 
393
        <term><filename>/etc/mandos/seckey.txt</filename></term>
 
394
        <listitem>
 
395
          <para>
 
396
            OpenPGP secret key file which will be created or
 
397
            overwritten.
 
398
          </para>
 
399
        </listitem>
 
400
      </varlistentry>
 
401
      <varlistentry>
 
402
        <term><filename>/etc/mandos/pubkey.txt</filename></term>
 
403
        <listitem>
 
404
          <para>
 
405
            OpenPGP public key file which will be created or
 
406
            overwritten.
 
407
          </para>
 
408
        </listitem>
 
409
      </varlistentry>
 
410
      <varlistentry>
 
411
        <term><filename>/tmp</filename></term>
 
412
        <listitem>
 
413
          <para>
 
414
            Temporary files will be written here if
 
415
            <varname>TMPDIR</varname> is not set.
 
416
          </para>
 
417
        </listitem>
 
418
      </varlistentry>
 
419
    </variablelist>
 
420
  </refsect1>
 
421
  
 
422
<!--   <refsect1 id="bugs"> -->
 
423
<!--     <title>BUGS</title> -->
 
424
<!--     <para> -->
 
425
<!--     </para> -->
 
426
<!--   </refsect1> -->
 
427
  
 
428
  <refsect1 id="example">
 
429
    <title>EXAMPLE</title>
 
430
    <informalexample>
 
431
      <para>
 
432
        Normal invocation needs no options:
 
433
      </para>
 
434
      <para>
 
435
        <userinput>&COMMANDNAME;</userinput>
 
436
      </para>
 
437
    </informalexample>
 
438
    <informalexample>
 
439
      <para>
 
440
        Create key in another directory and of another type.  Force
 
441
        overwriting old key files:
 
442
      </para>
 
443
      <para>
 
444
 
 
445
<!-- do not wrap this line -->
 
446
<userinput>&COMMANDNAME; --dir ~/keydir --type RSA --force</userinput>
 
447
 
 
448
      </para>
 
449
    </informalexample>
 
450
    <informalexample>
 
451
      <para>
 
452
        Prompt for a password, encrypt it with the key in
 
453
        <filename>/etc/mandos</filename> and output a section suitable
 
454
        for <filename>clients.conf</filename>.
 
455
      </para>
 
456
      <para>
 
457
        <userinput>&COMMANDNAME; --password</userinput>
 
458
      </para>
 
459
    </informalexample>
 
460
    <informalexample>
 
461
      <para>
 
462
        Prompt for a password, encrypt it with the key in the
 
463
        <filename>client-key</filename> directory and output a section
 
464
        suitable for <filename>clients.conf</filename>.
 
465
      </para>
 
466
      <para>
 
467
 
 
468
<!-- do not wrap this line -->
 
469
<userinput>&COMMANDNAME; --password --dir client-key</userinput>
 
470
 
 
471
      </para>
 
472
    </informalexample>
 
473
  </refsect1>
 
474
  
 
475
  <refsect1 id="security">
 
476
    <title>SECURITY</title>
 
477
    <para>
 
478
      The <option>--type</option>, <option>--length</option>,
 
479
      <option>--subtype</option>, and <option>--sublength</option>
 
480
      options can be used to create keys of low security.  If in
 
481
      doubt, leave them to the default values.
 
482
    </para>
 
483
    <para>
 
484
      The key expire time is <emphasis>not</emphasis> guaranteed to be
 
485
      honored by <citerefentry><refentrytitle>mandos</refentrytitle>
 
486
      <manvolnum>8</manvolnum></citerefentry>.
 
487
    </para>
 
488
  </refsect1>
 
489
  
 
490
  <refsect1 id="see_also">
 
491
    <title>SEE ALSO</title>
 
492
    <para>
 
493
      <citerefentry><refentrytitle>gpg</refentrytitle>
 
494
      <manvolnum>1</manvolnum></citerefentry>,
 
495
      <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
 
496
      <manvolnum>5</manvolnum></citerefentry>,
 
497
      <citerefentry><refentrytitle>mandos</refentrytitle>
 
498
      <manvolnum>8</manvolnum></citerefentry>,
 
499
      <citerefentry><refentrytitle>mandos-client</refentrytitle>
 
500
      <manvolnum>8mandos</manvolnum></citerefentry>
 
501
    </para>
 
502
  </refsect1>
 
503
  
 
504
</refentry>
 
505
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