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 "2019-07-18">
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>
46
32
<holder>Teddy Hogeborn</holder>
47
33
<holder>Björn Påhlsson</holder>
49
<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/"/>.
53
61
<refentrytitle>&COMMANDNAME;</refentrytitle>
54
62
<manvolnum>8</manvolnum>
58
66
<refname><command>&COMMANDNAME;</command></refname>
60
Generate key and password for Mandos client and server.
68
Generate keys for <citerefentry><refentrytitle>password-request
69
</refentrytitle><manvolnum>8mandos</manvolnum></citerefentry>
66
75
<command>&COMMANDNAME;</command>
68
<arg choice="plain"><option>--dir
69
<replaceable>DIRECTORY</replaceable></option></arg>
70
<arg choice="plain"><option>-d
71
<replaceable>DIRECTORY</replaceable></option></arg>
75
<arg choice="plain"><option>--type
76
<replaceable>KEYTYPE</replaceable></option></arg>
77
<arg choice="plain"><option>-t
78
<replaceable>KEYTYPE</replaceable></option></arg>
82
<arg choice="plain"><option>--length
83
<replaceable>BITS</replaceable></option></arg>
84
<arg choice="plain"><option>-l
85
<replaceable>BITS</replaceable></option></arg>
89
<arg choice="plain"><option>--subtype
90
<replaceable>KEYTYPE</replaceable></option></arg>
91
<arg choice="plain"><option>-s
92
<replaceable>KEYTYPE</replaceable></option></arg>
96
<arg choice="plain"><option>--sublength
97
<replaceable>BITS</replaceable></option></arg>
98
<arg choice="plain"><option>-L
99
<replaceable>BITS</replaceable></option></arg>
103
<arg choice="plain"><option>--name
104
<replaceable>NAME</replaceable></option></arg>
105
<arg choice="plain"><option>-n
106
<replaceable>NAME</replaceable></option></arg>
110
<arg choice="plain"><option>--email
111
<replaceable>ADDRESS</replaceable></option></arg>
112
<arg choice="plain"><option>-e
113
<replaceable>ADDRESS</replaceable></option></arg>
117
<arg choice="plain"><option>--comment
118
<replaceable>TEXT</replaceable></option></arg>
119
<arg choice="plain"><option>-c
120
<replaceable>TEXT</replaceable></option></arg>
124
<arg choice="plain"><option>--expire
125
<replaceable>TIME</replaceable></option></arg>
126
<arg choice="plain"><option>-x
127
<replaceable>TIME</replaceable></option></arg>
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>
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>
138
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>
139
155
<arg choice="plain"><option>-f</option></arg>
143
159
<command>&COMMANDNAME;</command>
144
160
<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>
154
<arg choice="plain"><option>--dir
155
<replaceable>DIRECTORY</replaceable></option></arg>
156
<arg choice="plain"><option>-d
157
<replaceable>DIRECTORY</replaceable></option></arg>
161
<arg choice="plain"><option>--name
162
<replaceable>NAME</replaceable></option></arg>
163
<arg choice="plain"><option>-n
164
<replaceable>NAME</replaceable></option></arg>
167
<arg choice="plain"><option>--no-ssh</option></arg>
168
<arg choice="plain"><option>-S</option></arg>
172
<command>&COMMANDNAME;</command>
161
<arg choice="plain"><option>-h</option></arg>
174
162
<arg choice="plain"><option>--help</option></arg>
175
<arg choice="plain"><option>-h</option></arg>
179
166
<command>&COMMANDNAME;</command>
180
167
<group choice="req">
168
<arg choice="plain"><option>-v</option></arg>
181
169
<arg choice="plain"><option>--version</option></arg>
182
<arg choice="plain"><option>-v</option></arg>
185
172
</refsynopsisdiv>
187
174
<refsect1 id="description">
188
175
<title>DESCRIPTION</title>
190
177
<command>&COMMANDNAME;</command> is a program to generate the
191
TLS and OpenPGP keys used by
192
<citerefentry><refentrytitle>mandos-client</refentrytitle>
179
<citerefentry><refentrytitle>password-request</refentrytitle>
193
180
<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.
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>).
181
normally written to /etc/mandos for later installation into the
182
initrd image, but this, like most things, can be changed with
183
command line options.
208
187
<refsect1 id="purpose">
209
188
<title>PURPOSE</title>
211
191
The purpose of this is to enable <emphasis>remote and unattended
212
192
rebooting</emphasis> of client host computer with an
213
193
<emphasis>encrypted root file system</emphasis>. See <xref
214
194
linkend="overview"/> for details.
218
199
<refsect1 id="options">
219
200
<title>OPTIONS</title>
223
<term><option>--help</option></term>
224
<term><option>-h</option></term>
204
<term><literal>-h</literal>, <literal>--help</literal></term>
227
207
Show a help message and exit
234
<replaceable>DIRECTORY</replaceable></option></term>
236
<replaceable>DIRECTORY</replaceable></option></term>
239
Target directory for key files. Default is <filename
240
class="directory">/etc/keys/mandos</filename>.
247
<replaceable>TYPE</replaceable></option></term>
249
<replaceable>TYPE</replaceable></option></term>
252
OpenPGP key type. Default is <quote>RSA</quote>.
258
<term><option>--length
259
<replaceable>BITS</replaceable></option></term>
261
<replaceable>BITS</replaceable></option></term>
264
OpenPGP key length in bits. Default is 4096.
270
<term><option>--subtype
271
<replaceable>KEYTYPE</replaceable></option></term>
273
<replaceable>KEYTYPE</replaceable></option></term>
276
OpenPGP subkey type. Default is <quote>RSA</quote>
282
<term><option>--sublength
283
<replaceable>BITS</replaceable></option></term>
285
<replaceable>BITS</replaceable></option></term>
288
OpenPGP subkey length in bits. Default is 4096.
294
<term><option>--email
295
<replaceable>ADDRESS</replaceable></option></term>
297
<replaceable>ADDRESS</replaceable></option></term>
213
<term><literal>-d</literal>, <literal>--dir
214
<replaceable>directory</replaceable></literal></term>
217
Target directory for key files.
223
<term><literal>-t</literal>, <literal>--type
224
<replaceable>type</replaceable></literal></term>
227
Key type. Default is <quote>DSA</quote>.
233
<term><literal>-l</literal>, <literal>--length
234
<replaceable>bits</replaceable></literal></term>
237
Key length in bits. Default is 1024.
243
<term><literal>-s</literal>, <literal>--subtype
244
<replaceable>type</replaceable></literal></term>
247
Subkey type. Default is <quote>ELG-E</quote> (Elgamal
254
<term><literal>-L</literal>, <literal>--sublength
255
<replaceable>bits</replaceable></literal></term>
258
Subkey length in bits. Default is 2048.
264
<term><literal>-e</literal>, <literal>--email</literal>
265
<replaceable>address</replaceable></term>
300
268
Email address of key. Default is empty.
306
<term><option>--comment
307
<replaceable>TEXT</replaceable></option></term>
309
<replaceable>TEXT</replaceable></option></term>
274
<term><literal>-c</literal>, <literal>--comment</literal>
275
<replaceable>comment</replaceable></term>
312
Comment field for key. Default is empty.
278
Comment field for key. The default value is
279
<quote><literal>Mandos client key</literal></quote>.
318
<term><option>--expire
319
<replaceable>TIME</replaceable></option></term>
321
<replaceable>TIME</replaceable></option></term>
285
<term><literal>-x</literal>, <literal>--expire</literal>
286
<replaceable>time</replaceable></term>
324
289
Key expire time. Default is no expiration. See
332
<term><option>--tls-keytype
333
<replaceable>KEYTYPE</replaceable></option></term>
335
<replaceable>KEYTYPE</replaceable></option></term>
338
TLS key type. Default is <quote>ed25519</quote>
344
<term><option>--force</option></term>
345
<term><option>-f</option></term>
348
Force overwriting old key.
353
<term><option>--password</option></term>
354
<term><option>-p</option></term>
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. Note: white space is stripped from
367
the beginning and from the end of the password; See <xref
373
<term><option>--passfile
374
<replaceable>FILE</replaceable></option></term>
376
<replaceable>FILE</replaceable></option></term>
379
The same as <option>--password</option>, but read from
380
<replaceable>FILE</replaceable>, not the terminal, and
381
white space is not stripped from the password in any way.
386
<term><option>--no-ssh</option></term>
387
<term><option>-S</option></term>
390
When <option>--password</option> or
391
<option>--passfile</option> is given, this option will
392
prevent <command>&COMMANDNAME;</command> from calling
393
<command>ssh-keyscan</command> to get an SSH fingerprint
394
for this host and, if successful, output suitable config
395
options to use this fingerprint as a
396
<option>checker</option> option in the output. This is
397
otherwise the default behavior.
297
<term><literal>-f</literal>, <literal>--force</literal></term>
300
Force overwriting old keys.
404
307
<refsect1 id="overview">
405
308
<title>OVERVIEW</title>
406
309
<xi:include href="overview.xml"/>
408
This program is a small utility to generate new TLS and OpenPGP
409
keys for new Mandos clients, and to generate sections for
410
inclusion in <filename>clients.conf</filename> on the server.
311
This program is a small utility to generate new OpenPGP keys for
414
316
<refsect1 id="exit_status">
415
317
<title>EXIT STATUS</title>
417
The exit status will be 0 if a new key (or password, if the
418
<option>--password</option> option was used) was successfully
419
created, otherwise not.
319
The exit status will be 0 if new keys were successfully created,
509
389
Normal invocation needs no options:
512
<userinput>&COMMANDNAME;</userinput>
392
<userinput>mandos-keygen</userinput>
514
394
</informalexample>
515
395
<informalexample>
517
Create key in another directory and of another type. Force
397
Create keys in another directory and of another type. Force
518
398
overwriting old key files:
522
402
<!-- do not wrap this line -->
523
<userinput>&COMMANDNAME; --dir ~/keydir --type RSA --force</userinput>
529
Prompt for a password, encrypt it with the keys in <filename
530
class="directory">/etc/keys/mandos</filename> and output a
531
section suitable for <filename>clients.conf</filename>.
534
<userinput>&COMMANDNAME; --password</userinput>
539
Prompt for a password, encrypt it with the keys in the
540
<filename>client-key</filename> directory and output a section
541
suitable for <filename>clients.conf</filename>.
545
<!-- do not wrap this line -->
546
<userinput>&COMMANDNAME; --password --dir client-key</userinput>
403
<userinput>mandos-keygen --dir ~/keydir --type RSA --force</userinput>
549
406
</informalexample>
552
409
<refsect1 id="security">
553
410
<title>SECURITY</title>
555
412
The <option>--type</option>, <option>--length</option>,
556
413
<option>--subtype</option>, and <option>--sublength</option>
557
options can be used to create keys of low security. If in
558
doubt, leave them to the default values.
414
options can be used to create keys of insufficient security. If
415
in doubt, leave them to the default values.
561
The key expire time is <emphasis>not</emphasis> guaranteed to be
562
honored by <citerefentry><refentrytitle>mandos</refentrytitle>
418
The key expire time is not guaranteed to be honored by
419
<citerefentry><refentrytitle>mandos</refentrytitle>
563
420
<manvolnum>8</manvolnum></citerefentry>.
567
424
<refsect1 id="see_also">
568
425
<title>SEE ALSO</title>
570
<citerefentry><refentrytitle>intro</refentrytitle>
427
<citerefentry><refentrytitle>password-request</refentrytitle>
571
428
<manvolnum>8mandos</manvolnum></citerefentry>,
429
<citerefentry><refentrytitle>mandos</refentrytitle>
430
<manvolnum>8</manvolnum></citerefentry>,
572
431
<citerefentry><refentrytitle>gpg</refentrytitle>
573
<manvolnum>1</manvolnum></citerefentry>,
574
<citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
575
<manvolnum>5</manvolnum></citerefentry>,
576
<citerefentry><refentrytitle>mandos</refentrytitle>
577
<manvolnum>8</manvolnum></citerefentry>,
578
<citerefentry><refentrytitle>mandos-client</refentrytitle>
579
<manvolnum>8mandos</manvolnum></citerefentry>,
580
<citerefentry><refentrytitle>ssh-keyscan</refentrytitle>
581
432
<manvolnum>1</manvolnum></citerefentry>
586
<!-- Local Variables: -->
587
<!-- time-stamp-start: "<!ENTITY TIMESTAMP [\"']" -->
588
<!-- time-stamp-end: "[\"']>" -->
589
<!-- time-stamp-format: "%:y-%02m-%02d" -->