1
1
<?xml version="1.0" encoding="UTF-8"?>
2
2
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
3
3
"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
4
<!ENTITY VERSION "1.0">
4
5
<!ENTITY COMMANDNAME "mandos-keygen">
5
<!ENTITY TIMESTAMP "2019-02-10">
6
<!ENTITY % common SYSTEM "common.ent">
10
8
<refentry xmlns:xi="http://www.w3.org/2001/XInclude">
12
<title>Mandos Manual</title>
10
<title>&COMMANDNAME;</title>
13
11
<!-- NWalsh’s docbook scripts use this to generate the footer: -->
14
<productname>Mandos</productname>
15
<productnumber>&version;</productnumber>
16
<date>&TIMESTAMP;</date>
12
<productname>&COMMANDNAME;</productname>
13
<productnumber>&VERSION;</productnumber>
19
16
<firstname>Björn</firstname>
20
17
<surname>Påhlsson</surname>
22
<email>belorn@recompile.se</email>
19
<email>belorn@fukt.bsnet.se</email>
26
23
<firstname>Teddy</firstname>
27
24
<surname>Hogeborn</surname>
29
<email>teddy@recompile.se</email>
26
<email>teddy@fukt.bsnet.se</email>
45
32
<holder>Teddy Hogeborn</holder>
46
33
<holder>Björn Påhlsson</holder>
48
<xi:include href="legalnotice.xml"/>
37
This manual page is free software: you can redistribute it
38
and/or modify it under the terms of the GNU General Public
39
License as published by the Free Software Foundation,
40
either version 3 of the License, or (at your option) any
45
This manual page is distributed in the hope that it will
46
be useful, but WITHOUT ANY WARRANTY; without even the
47
implied warranty of MERCHANTABILITY or FITNESS FOR A
48
PARTICULAR PURPOSE. See the GNU General Public License
53
You should have received a copy of the GNU General Public
54
License along with this program; If not, see
55
<ulink url="http://www.gnu.org/licenses/"/>.
52
61
<refentrytitle>&COMMANDNAME;</refentrytitle>
53
62
<manvolnum>8</manvolnum>
57
66
<refname><command>&COMMANDNAME;</command></refname>
59
Generate key and password for Mandos client and server.
68
Generate keys for <citerefentry><refentrytitle>password-request
69
</refentrytitle><manvolnum>8mandos</manvolnum></citerefentry>
65
75
<command>&COMMANDNAME;</command>
67
<arg choice="plain"><option>--dir
68
<replaceable>DIRECTORY</replaceable></option></arg>
69
<arg choice="plain"><option>-d
70
<replaceable>DIRECTORY</replaceable></option></arg>
74
<arg choice="plain"><option>--type
75
<replaceable>KEYTYPE</replaceable></option></arg>
76
<arg choice="plain"><option>-t
77
<replaceable>KEYTYPE</replaceable></option></arg>
81
<arg choice="plain"><option>--length
82
<replaceable>BITS</replaceable></option></arg>
83
<arg choice="plain"><option>-l
84
<replaceable>BITS</replaceable></option></arg>
88
<arg choice="plain"><option>--subtype
89
<replaceable>KEYTYPE</replaceable></option></arg>
90
<arg choice="plain"><option>-s
91
<replaceable>KEYTYPE</replaceable></option></arg>
95
<arg choice="plain"><option>--sublength
96
<replaceable>BITS</replaceable></option></arg>
97
<arg choice="plain"><option>-L
98
<replaceable>BITS</replaceable></option></arg>
102
<arg choice="plain"><option>--name
103
<replaceable>NAME</replaceable></option></arg>
104
<arg choice="plain"><option>-n
105
<replaceable>NAME</replaceable></option></arg>
109
<arg choice="plain"><option>--email
110
<replaceable>ADDRESS</replaceable></option></arg>
111
<arg choice="plain"><option>-e
112
<replaceable>ADDRESS</replaceable></option></arg>
116
<arg choice="plain"><option>--comment
117
<replaceable>TEXT</replaceable></option></arg>
118
<arg choice="plain"><option>-c
119
<replaceable>TEXT</replaceable></option></arg>
123
<arg choice="plain"><option>--expire
124
<replaceable>TIME</replaceable></option></arg>
125
<arg choice="plain"><option>-x
126
<replaceable>TIME</replaceable></option></arg>
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>
77
<arg choice="plain"><option>--dir</option>
78
<replaceable>directory</replaceable></arg>
81
<arg choice="plain"><option>--type</option>
82
<replaceable>type</replaceable></arg>
85
<arg choice="plain"><option>--length</option>
86
<replaceable>bits</replaceable></arg>
89
<arg choice="plain"><option>--subtype</option>
90
<replaceable>type</replaceable></arg>
93
<arg choice="plain"><option>--sublength</option>
94
<replaceable>bits</replaceable></arg>
97
<arg choice="plain"><option>--name</option>
98
<replaceable>NAME</replaceable></arg>
101
<arg choice="plain"><option>--email</option>
102
<replaceable>EMAIL</replaceable></arg>
105
<arg choice="plain"><option>--comment</option>
106
<replaceable>COMMENT</replaceable></arg>
109
<arg choice="plain"><option>--expire</option>
110
<replaceable>TIME</replaceable></arg>
137
113
<arg choice="plain"><option>--force</option></arg>
117
<command>&COMMANDNAME;</command>
119
<arg choice="plain"><option>-d</option>
120
<replaceable>directory</replaceable></arg>
123
<arg choice="plain"><option>-t</option>
124
<replaceable>type</replaceable></arg>
127
<arg choice="plain"><option>-l</option>
128
<replaceable>bits</replaceable></arg>
131
<arg choice="plain"><option>-s</option>
132
<replaceable>type</replaceable></arg>
135
<arg choice="plain"><option>-L</option>
136
<replaceable>bits</replaceable></arg>
139
<arg choice="plain"><option>-n</option>
140
<replaceable>NAME</replaceable></arg>
143
<arg choice="plain"><option>-e</option>
144
<replaceable>EMAIL</replaceable></arg>
147
<arg choice="plain"><option>-c</option>
148
<replaceable>COMMENT</replaceable></arg>
151
<arg choice="plain"><option>-x</option>
152
<replaceable>TIME</replaceable></arg>
138
155
<arg choice="plain"><option>-f</option></arg>
142
159
<command>&COMMANDNAME;</command>
143
160
<group choice="req">
161
<arg choice="plain"><option>-p</option></arg>
144
162
<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>
153
<arg choice="plain"><option>--dir
154
<replaceable>DIRECTORY</replaceable></option></arg>
155
<arg choice="plain"><option>-d
156
<replaceable>DIRECTORY</replaceable></option></arg>
160
<arg choice="plain"><option>--name
161
<replaceable>NAME</replaceable></option></arg>
162
<arg choice="plain"><option>-n
163
<replaceable>NAME</replaceable></option></arg>
166
<arg choice="plain"><option>--no-ssh</option></arg>
167
<arg choice="plain"><option>-S</option></arg>
165
<arg choice="plain"><option>--dir</option>
166
<replaceable>directory</replaceable></arg>
169
<arg choice="plain"><option>--name</option>
170
<replaceable>NAME</replaceable></arg>
171
174
<command>&COMMANDNAME;</command>
172
175
<group choice="req">
176
<arg choice="plain"><option>-h</option></arg>
173
177
<arg choice="plain"><option>--help</option></arg>
174
<arg choice="plain"><option>-h</option></arg>
178
181
<command>&COMMANDNAME;</command>
179
182
<group choice="req">
183
<arg choice="plain"><option>-v</option></arg>
180
184
<arg choice="plain"><option>--version</option></arg>
181
<arg choice="plain"><option>-v</option></arg>
184
187
</refsynopsisdiv>
186
189
<refsect1 id="description">
187
190
<title>DESCRIPTION</title>
189
192
<command>&COMMANDNAME;</command> is a program to generate the
190
TLS and OpenPGP keys used by
191
<citerefentry><refentrytitle>mandos-client</refentrytitle>
194
<citerefentry><refentrytitle>password-request</refentrytitle>
192
195
<manvolnum>8mandos</manvolnum></citerefentry>. The keys are
193
normally written to /etc/keys/mandos for later installation into
194
the initrd image, but this, and most other things, can be
195
changed with command line options.
196
normally written to /etc/mandos for later installation into the
197
initrd image, but this, like most things, can be changed with
198
command line options.
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
201
It can also be used to generate ready-made sections for
202
202
<citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
203
<manvolnum>5</manvolnum></citerefentry>).
203
<manvolnum>5</manvolnum></citerefentry> using the
204
<option>--password</option> option.
207
208
<refsect1 id="purpose">
208
209
<title>PURPOSE</title>
210
212
The purpose of this is to enable <emphasis>remote and unattended
211
213
rebooting</emphasis> of client host computer with an
212
214
<emphasis>encrypted root file system</emphasis>. See <xref
213
215
linkend="overview"/> for details.
217
220
<refsect1 id="options">
218
221
<title>OPTIONS</title>
222
<term><option>--help</option></term>
223
<term><option>-h</option></term>
225
<term><literal>-h</literal>, <literal>--help</literal></term>
226
228
Show a help message and exit
233
<replaceable>DIRECTORY</replaceable></option></term>
235
<replaceable>DIRECTORY</replaceable></option></term>
238
Target directory for key files. Default is <filename
239
class="directory">/etc/keys/mandos</filename>.
246
<replaceable>TYPE</replaceable></option></term>
248
<replaceable>TYPE</replaceable></option></term>
251
OpenPGP key type. Default is <quote>RSA</quote>.
257
<term><option>--length
258
<replaceable>BITS</replaceable></option></term>
260
<replaceable>BITS</replaceable></option></term>
263
OpenPGP key length in bits. Default is 4096.
269
<term><option>--subtype
270
<replaceable>KEYTYPE</replaceable></option></term>
272
<replaceable>KEYTYPE</replaceable></option></term>
275
OpenPGP subkey type. Default is <quote>RSA</quote>
281
<term><option>--sublength
282
<replaceable>BITS</replaceable></option></term>
284
<replaceable>BITS</replaceable></option></term>
287
OpenPGP subkey length in bits. Default is 4096.
293
<term><option>--email
294
<replaceable>ADDRESS</replaceable></option></term>
296
<replaceable>ADDRESS</replaceable></option></term>
234
<term><literal>-d</literal>, <literal>--dir
235
<replaceable>directory</replaceable></literal></term>
238
Target directory for key files. Default is
239
<filename>/etc/mandos</filename>.
245
<term><literal>-t</literal>, <literal>--type
246
<replaceable>type</replaceable></literal></term>
249
Key type. Default is <quote>DSA</quote>.
255
<term><literal>-l</literal>, <literal>--length
256
<replaceable>bits</replaceable></literal></term>
259
Key length in bits. Default is 2048.
265
<term><literal>-s</literal>, <literal>--subtype
266
<replaceable>type</replaceable></literal></term>
269
Subkey type. Default is <quote>ELG-E</quote> (Elgamal
276
<term><literal>-L</literal>, <literal>--sublength
277
<replaceable>bits</replaceable></literal></term>
280
Subkey length in bits. Default is 2048.
286
<term><literal>-e</literal>, <literal>--email</literal>
287
<replaceable>address</replaceable></term>
299
290
Email address of key. Default is empty.
305
<term><option>--comment
306
<replaceable>TEXT</replaceable></option></term>
308
<replaceable>TEXT</replaceable></option></term>
296
<term><literal>-c</literal>, <literal>--comment</literal>
297
<replaceable>comment</replaceable></term>
311
Comment field for key. Default is empty.
300
Comment field for key. The default value is
301
<quote><literal>Mandos client key</literal></quote>.
317
<term><option>--expire
318
<replaceable>TIME</replaceable></option></term>
320
<replaceable>TIME</replaceable></option></term>
307
<term><literal>-x</literal>, <literal>--expire</literal>
308
<replaceable>time</replaceable></term>
323
311
Key expire time. Default is no expiration. See
331
<term><option>--tls-keytype
332
<replaceable>KEYTYPE</replaceable></option></term>
334
<replaceable>KEYTYPE</replaceable></option></term>
337
TLS key type. Default is <quote>ed25519</quote>
343
<term><option>--force</option></term>
344
<term><option>-f</option></term>
347
Force overwriting old key.
352
<term><option>--password</option></term>
353
<term><option>-p</option></term>
319
<term><literal>-f</literal>, <literal>--force</literal></term>
322
Force overwriting old keys.
327
<term><literal>-p</literal>, <literal>--password</literal
356
331
Prompt for a password and encrypt it with the key already
357
present in either <filename>/etc/keys/mandos</filename> or
358
the directory specified with the <option>--dir</option>
332
present in either <filename>/etc/mandos</filename> or the
333
directory specified with the <option>--dir</option>
359
334
option. Outputs, on standard output, a section suitable
360
335
for inclusion in <citerefentry><refentrytitle
361
336
>mandos-clients.conf</refentrytitle><manvolnum
362
337
>8</manvolnum></citerefentry>. The host name or the name
363
338
specified with the <option>--name</option> option is used
364
339
for the section header. All other options are ignored,
365
and no key is created.
370
<term><option>--passfile
371
<replaceable>FILE</replaceable></option></term>
373
<replaceable>FILE</replaceable></option></term>
376
The same as <option>--password</option>, but read from
377
<replaceable>FILE</replaceable>, not the terminal.
382
<term><option>--no-ssh</option></term>
383
<term><option>-S</option></term>
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.
340
and no keys are created.
400
347
<refsect1 id="overview">
401
348
<title>OVERVIEW</title>
402
349
<xi:include href="overview.xml"/>
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.
351
This program is a small utility to generate new OpenPGP keys for
410
356
<refsect1 id="exit_status">
411
357
<title>EXIT STATUS</title>
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.
359
The exit status will be 0 if new keys were successfully created,
498
429
Normal invocation needs no options:
501
<userinput>&COMMANDNAME;</userinput>
432
<userinput>mandos-keygen</userinput>
503
434
</informalexample>
504
435
<informalexample>
506
Create key in another directory and of another type. Force
437
Create keys in another directory and of another type. Force
507
438
overwriting old key files:
511
442
<!-- do not wrap this line -->
512
<userinput>&COMMANDNAME; --dir ~/keydir --type RSA --force</userinput>
518
Prompt for a password, encrypt it with the keys in <filename
519
class="directory">/etc/keys/mandos</filename> and output a
520
section suitable for <filename>clients.conf</filename>.
523
<userinput>&COMMANDNAME; --password</userinput>
528
Prompt for a password, encrypt it with the keys in the
529
<filename>client-key</filename> directory and output a section
530
suitable for <filename>clients.conf</filename>.
534
<!-- do not wrap this line -->
535
<userinput>&COMMANDNAME; --password --dir client-key</userinput>
443
<userinput>mandos-keygen --dir ~/keydir --type RSA --force</userinput>
538
446
</informalexample>
541
449
<refsect1 id="security">
542
450
<title>SECURITY</title>
544
452
The <option>--type</option>, <option>--length</option>,
545
453
<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.
454
options can be used to create keys of insufficient security. If
455
in doubt, leave them to the default values.
550
The key expire time is <emphasis>not</emphasis> guaranteed to be
551
honored by <citerefentry><refentrytitle>mandos</refentrytitle>
458
The key expire time is not guaranteed to be honored by
459
<citerefentry><refentrytitle>mandos</refentrytitle>
552
460
<manvolnum>8</manvolnum></citerefentry>.
556
464
<refsect1 id="see_also">
557
465
<title>SEE ALSO</title>
559
<citerefentry><refentrytitle>intro</refentrytitle>
467
<citerefentry><refentrytitle>password-request</refentrytitle>
560
468
<manvolnum>8mandos</manvolnum></citerefentry>,
469
<citerefentry><refentrytitle>mandos</refentrytitle>
470
<manvolnum>8</manvolnum></citerefentry>,
561
471
<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
472
<manvolnum>1</manvolnum></citerefentry>
575
<!-- Local Variables: -->
576
<!-- time-stamp-start: "<!ENTITY TIMESTAMP [\"']" -->
577
<!-- time-stamp-end: "[\"']>" -->
578
<!-- time-stamp-format: "%:y-%02m-%02d" -->