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  • Committer: Teddy Hogeborn
  • Date: 2019-02-09 23:23:26 UTC
  • mto: (237.7.594 trunk)
  • mto: This revision was merged to the branch mainline in revision 370.
  • Revision ID: teddy@recompile.se-20190209232326-z1z2kzpgfixz7iaj
Add support for using raw public keys in TLS (RFC 7250)

Since GnuTLS removed support for OpenPGP keys in TLS (RFC 6091), and
no other library supports it, we have to change the protocol to use
something else.  We choose to use "raw public keys" (RFC 7250).  Since
we still use OpenPGP keys to decrypt the secret password, this means
that each client will have two keys: One OpenPGP key and one TLS
public/private key, and the key ID of the latter key is used to
identify clients instead of the fingerprint of the OpenPGP key.

Note that this code is still compatible with GnuTLS before version
3.6.0 (when OpenPGP key support was removed).  This commit merely adds
support for using raw pulic keys instead with GnuTLS 3.6.6. or later.

* DBUS-API (Signals/ClientNotFound): Change name of first parameter
                                     from "Fingerprint" to "KeyID".
  (Mandos Client Interface/Properties/KeyID): New.
* INSTALL: Document conflict with GnuTLS 3.6.0 (which removed OpenPGP
           key support) up until 3.6.6, when support for raw public
           keys was added.  Also document new dependency of client on
           "gnutls-bin" package (for certtool).
* Makefile (run-client): Depend on TLS key files, and also pass them
                         as arguments to client.
  (keydir/tls-privkey.pem, keydir/tls-pubkey.pem): New.
  (confdir/clients.conf): Add dependency on TLS public key.
  (purge-client): Add removal of TLS key files.
* clients.conf ([foo]/key_id, [bar]/key_id): New.
* debian/control (Source: mandos/Build-Depends): Also allow
                                                 libgnutls30 (>= 3.6.6)
  (Package: mandos/Depends): - '' -
  (Package: mandos/Description): Alter description to match new
                                 design.
  (Package: mandos-client/Description): - '' -
  (Package: mandos-client/Depends): Move "gnutls-bin | openssl" to
                                    here from "Recommends".
* debian/mandos-client.README.Debian: Add --tls-privkey and
                                      --tls-pubkey options to test
                                      command.
* debian/mandos-client.postinst (create_key): Renamed to "create_keys"
                                             (all callers changed),
                                             and also create TLS key.
* debian/mandos-client.postrm (purge): Also remove TLS key files.
* intro.xml (DESCRIPTION): Describe new dual-key design.
* mandos (GnuTLS): Define different functions depending on whether
                   support for raw public keys is detected.
  (Client.key_id): New attribute.
  (ClientDBus.KeyID_dbus_property): New method.
  (ProxyClient.__init__): Take new "key_id" parameter.
  (ClientHandler.handle): Use key IDs when using raw public keys and
                          use fingerprints when using OpenPGP keys.
  (ClientHandler.peer_certificate): Also handle raw public keys.
  (ClientHandler.key_id): New.
  (MandosServer.handle_ipc): Pass key ID over the pipe IPC.  Also
                             check for key ID matches when looking up
                             clients.
  (main): Default GnuTLS priority string depends on whether we are
          using raw public keys or not.  When unpickling clients, set
          key_id if not set in the pickle.
  (main/MandosDBusService.ClientNotFound): Change name of first
                                           parameter from
                                           "Fingerprint" to "KeyID".
* mandos-clients.conf.xml (OPTIONS): Document new "key_id" option.
  (OPTIONS/secret): Mention new key ID matchning.
  (EXPANSION/RUNTIME EXPANSION): Add new "key_id" option.
  (EXAMPLE): - '' -
* mandos-ctl (tablewords, main/keywords): Add new "KeyID" property.
* mandos-keygen: Create TLS key files.  New "--tls-keytype" (-T)
                 option.  Alter help text to be more clear about key
                 types.  When in password mode, also output "key_id"
                 option.
* mandos-keygen.xml (SYNOPSIS): Add new "--tls-keytype" (-T) option.
  (DESCRIPTION): Alter to match new dual-key design.
  (OVERVIEW): - '' -
  (FILES): Add TLS key files.
* mandos-options.xml (priority): Document new default priority string
                                 when using raw public keys.
* mandos.xml (NETWORK PROTOCOL): Describe new protocol using key ID.
  (BUGS): Remove issue about checking expire times of OpenPGP keys,
          since TLS public keys do not have expiration times.
  (SECURITY/CLIENT): Alter description to match new design.
  (SEE ALSO/GnuTLS): - '' -
  (SEE ALSO): Add reference to RFC 7250, and alter description of when
              RFC 6091 is used.
* overview.xml: Alter text to match new design.
* plugin-runner.xml (EXAMPLE): Add --tls-pubkey and --tls-privkey
                               options to mandos-client options.
* plugins.d/mandos-client.c: Use raw public keys when compiling with
                             supporting GnuTLS versions. Add new
                             "--tls-pubkey" and "--tls-privkey"
                             options (which do nothing if GnuTLS
                             library does not support raw public
                             keys).  Alter text throughout to reflect
                             new design.  Only generate new DH
                             parameters (based on size of OpenPGP key)
                             when using OpenPGP in TLS.  Default
                             GnuTLS priority string depends on whether
                             we are using raw public keys or not.
* plugins.d/mandos-client.xml (SYNOPSIS): Add new "--tls-privkey" (-t)
                                          and "--tls-pubkey" (-T)
                                          options.
  (DESCRIPTION): Describe new dual-key design.
  (OPTIONS): Document new "--tls-privkey" (-t) and "--tls-pubkey" (-T)
             options.
  (OPTIONS/--dh-bits): No longer necessarily depends on OpenPGP key
                       size.
  (FILES): Add default locations for TLS public and private key files.
  (EXAMPLE): Use new --tls-pubkey and --tls-privkey options.
  (SECURITY): Alter wording slightly to reflect new dual-key design.
  (SEE ALSO/GnuTLS): Alter description to match new design.
  (SEE ALSO): Add reference to RFC 7250, and alter description of when
              RFC 6091 is used.

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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 "2019-02-10">
 
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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>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
      <year>2017</year>
 
44
      <year>2018</year>
 
45
      <holder>Teddy Hogeborn</holder>
 
46
      <holder>Björn Påhlsson</holder>
 
47
    </copyright>
 
48
    <xi:include href="legalnotice.xml"/>
 
49
  </refentryinfo>
 
50
  
 
51
  <refmeta>
 
52
    <refentrytitle>&COMMANDNAME;</refentrytitle>
 
53
    <manvolnum>8</manvolnum>
 
54
  </refmeta>
 
55
  
 
56
  <refnamediv>
 
57
    <refname><command>&COMMANDNAME;</command></refname>
 
58
    <refpurpose>
 
59
      Generate key and password for Mandos client and server.
 
60
    </refpurpose>
 
61
  </refnamediv>
 
62
  
 
63
  <refsynopsisdiv>
 
64
    <cmdsynopsis>
 
65
      <command>&COMMANDNAME;</command>
 
66
      <group>
 
67
        <arg choice="plain"><option>--dir
 
68
        <replaceable>DIRECTORY</replaceable></option></arg>
 
69
        <arg choice="plain"><option>-d
 
70
        <replaceable>DIRECTORY</replaceable></option></arg>
 
71
      </group>
 
72
      <sbr/>
 
73
      <group>
 
74
        <arg choice="plain"><option>--type
 
75
        <replaceable>KEYTYPE</replaceable></option></arg>
 
76
        <arg choice="plain"><option>-t
 
77
        <replaceable>KEYTYPE</replaceable></option></arg>
 
78
      </group>
 
79
      <sbr/>
 
80
      <group>
 
81
        <arg choice="plain"><option>--length
 
82
        <replaceable>BITS</replaceable></option></arg>
 
83
        <arg choice="plain"><option>-l
 
84
        <replaceable>BITS</replaceable></option></arg>
 
85
      </group>
 
86
      <sbr/>
 
87
      <group>
 
88
        <arg choice="plain"><option>--subtype
 
89
        <replaceable>KEYTYPE</replaceable></option></arg>
 
90
        <arg choice="plain"><option>-s
 
91
        <replaceable>KEYTYPE</replaceable></option></arg>
 
92
      </group>
 
93
      <sbr/>
 
94
      <group>
 
95
        <arg choice="plain"><option>--sublength
 
96
        <replaceable>BITS</replaceable></option></arg>
 
97
        <arg choice="plain"><option>-L
 
98
        <replaceable>BITS</replaceable></option></arg>
 
99
      </group>
 
100
      <sbr/>
 
101
      <group>
 
102
        <arg choice="plain"><option>--name
 
103
        <replaceable>NAME</replaceable></option></arg>
 
104
        <arg choice="plain"><option>-n
 
105
        <replaceable>NAME</replaceable></option></arg>
 
106
      </group>
 
107
      <sbr/>
 
108
      <group>
 
109
        <arg choice="plain"><option>--email
 
110
        <replaceable>ADDRESS</replaceable></option></arg>
 
111
        <arg choice="plain"><option>-e
 
112
        <replaceable>ADDRESS</replaceable></option></arg>
 
113
      </group>
 
114
      <sbr/>
 
115
      <group>
 
116
        <arg choice="plain"><option>--comment
 
117
        <replaceable>TEXT</replaceable></option></arg>
 
118
        <arg choice="plain"><option>-c
 
119
        <replaceable>TEXT</replaceable></option></arg>
 
120
      </group>
 
121
      <sbr/>
 
122
      <group>
 
123
        <arg choice="plain"><option>--expire
 
124
        <replaceable>TIME</replaceable></option></arg>
 
125
        <arg choice="plain"><option>-x
 
126
        <replaceable>TIME</replaceable></option></arg>
 
127
      </group>
 
128
      <sbr/>
 
129
      <group>
 
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>
 
134
      </group>
 
135
      <sbr/>
 
136
      <group>
 
137
        <arg choice="plain"><option>--force</option></arg>
 
138
        <arg choice="plain"><option>-f</option></arg>
 
139
      </group>
 
140
    </cmdsynopsis>
 
141
    <cmdsynopsis>
 
142
      <command>&COMMANDNAME;</command>
 
143
      <group choice="req">
 
144
        <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>
 
150
      </group>
 
151
      <sbr/>
 
152
      <group>
 
153
        <arg choice="plain"><option>--dir
 
154
        <replaceable>DIRECTORY</replaceable></option></arg>
 
155
        <arg choice="plain"><option>-d
 
156
        <replaceable>DIRECTORY</replaceable></option></arg>
 
157
      </group>
 
158
      <sbr/>
 
159
      <group>
 
160
        <arg choice="plain"><option>--name
 
161
        <replaceable>NAME</replaceable></option></arg>
 
162
        <arg choice="plain"><option>-n
 
163
        <replaceable>NAME</replaceable></option></arg>
 
164
      </group>
 
165
      <group>
 
166
        <arg choice="plain"><option>--no-ssh</option></arg>
 
167
        <arg choice="plain"><option>-S</option></arg>
 
168
      </group>
 
169
    </cmdsynopsis>
 
170
    <cmdsynopsis>
 
171
      <command>&COMMANDNAME;</command>
 
172
      <group choice="req">
 
173
        <arg choice="plain"><option>--help</option></arg>
 
174
        <arg choice="plain"><option>-h</option></arg>
 
175
      </group>
 
176
    </cmdsynopsis>
 
177
    <cmdsynopsis>
 
178
      <command>&COMMANDNAME;</command>
 
179
      <group choice="req">
 
180
        <arg choice="plain"><option>--version</option></arg>
 
181
        <arg choice="plain"><option>-v</option></arg>
 
182
      </group>
 
183
    </cmdsynopsis>
 
184
  </refsynopsisdiv>
 
185
  
 
186
  <refsect1 id="description">
 
187
    <title>DESCRIPTION</title>
 
188
    <para>
 
189
      <command>&COMMANDNAME;</command> is a program to generate the
 
190
      TLS and OpenPGP keys used by
 
191
      <citerefentry><refentrytitle>mandos-client</refentrytitle>
 
192
      <manvolnum>8mandos</manvolnum></citerefentry>.  The keys are
 
193
      normally written to /etc/mandos for later installation into the
 
194
      initrd image, but this, and most other things, can be changed
 
195
      with command line options.
 
196
    </para>
 
197
    <para>
 
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
 
202
      <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
 
203
      <manvolnum>5</manvolnum></citerefentry>).
 
204
    </para>
 
205
  </refsect1>
 
206
  
 
207
  <refsect1 id="purpose">
 
208
    <title>PURPOSE</title>
 
209
    <para>
 
210
      The purpose of this is to enable <emphasis>remote and unattended
 
211
      rebooting</emphasis> of client host computer with an
 
212
      <emphasis>encrypted root file system</emphasis>.  See <xref
 
213
      linkend="overview"/> for details.
 
214
    </para>
 
215
  </refsect1>
 
216
  
 
217
  <refsect1 id="options">
 
218
    <title>OPTIONS</title>
 
219
    
 
220
    <variablelist>
 
221
      <varlistentry>
 
222
        <term><option>--help</option></term>
 
223
        <term><option>-h</option></term>
 
224
        <listitem>
 
225
          <para>
 
226
            Show a help message and exit
 
227
          </para>
 
228
        </listitem>
 
229
      </varlistentry>
 
230
      
 
231
      <varlistentry>
 
232
        <term><option>--dir
 
233
        <replaceable>DIRECTORY</replaceable></option></term>
 
234
        <term><option>-d
 
235
        <replaceable>DIRECTORY</replaceable></option></term>
 
236
        <listitem>
 
237
          <para>
 
238
            Target directory for key files.  Default is
 
239
            <filename class="directory">/etc/mandos</filename>.
 
240
          </para>
 
241
        </listitem>
 
242
      </varlistentry>
 
243
      
 
244
      <varlistentry>
 
245
        <term><option>--type
 
246
        <replaceable>TYPE</replaceable></option></term>
 
247
        <term><option>-t
 
248
        <replaceable>TYPE</replaceable></option></term>
 
249
        <listitem>
 
250
          <para>
 
251
            OpenPGP key type.  Default is <quote>RSA</quote>.
 
252
          </para>
 
253
        </listitem>
 
254
      </varlistentry>
 
255
      
 
256
      <varlistentry>
 
257
        <term><option>--length
 
258
        <replaceable>BITS</replaceable></option></term>
 
259
        <term><option>-l
 
260
        <replaceable>BITS</replaceable></option></term>
 
261
        <listitem>
 
262
          <para>
 
263
            OpenPGP key length in bits.  Default is 4096.
 
264
          </para>
 
265
        </listitem>
 
266
      </varlistentry>
 
267
      
 
268
      <varlistentry>
 
269
        <term><option>--subtype
 
270
        <replaceable>KEYTYPE</replaceable></option></term>
 
271
        <term><option>-s
 
272
        <replaceable>KEYTYPE</replaceable></option></term>
 
273
        <listitem>
 
274
          <para>
 
275
            OpenPGP subkey type.  Default is <quote>RSA</quote>
 
276
          </para>
 
277
        </listitem>
 
278
      </varlistentry>
 
279
      
 
280
      <varlistentry>
 
281
        <term><option>--sublength
 
282
        <replaceable>BITS</replaceable></option></term>
 
283
        <term><option>-L
 
284
        <replaceable>BITS</replaceable></option></term>
 
285
        <listitem>
 
286
          <para>
 
287
            OpenPGP subkey length in bits.  Default is 4096.
 
288
          </para>
 
289
        </listitem>
 
290
      </varlistentry>
 
291
      
 
292
      <varlistentry>
 
293
        <term><option>--email
 
294
        <replaceable>ADDRESS</replaceable></option></term>
 
295
        <term><option>-e
 
296
        <replaceable>ADDRESS</replaceable></option></term>
 
297
        <listitem>
 
298
          <para>
 
299
            Email address of key.  Default is empty.
 
300
          </para>
 
301
        </listitem>
 
302
      </varlistentry>
 
303
      
 
304
      <varlistentry>
 
305
        <term><option>--comment
 
306
        <replaceable>TEXT</replaceable></option></term>
 
307
        <term><option>-c
 
308
        <replaceable>TEXT</replaceable></option></term>
 
309
        <listitem>
 
310
          <para>
 
311
            Comment field for key.  Default is empty.
 
312
          </para>
 
313
        </listitem>
 
314
      </varlistentry>
 
315
      
 
316
      <varlistentry>
 
317
        <term><option>--expire
 
318
        <replaceable>TIME</replaceable></option></term>
 
319
        <term><option>-x
 
320
        <replaceable>TIME</replaceable></option></term>
 
321
        <listitem>
 
322
          <para>
 
323
            Key expire time.  Default is no expiration.  See
 
324
            <citerefentry><refentrytitle>gpg</refentrytitle>
 
325
            <manvolnum>1</manvolnum></citerefentry> for syntax.
 
326
          </para>
 
327
        </listitem>
 
328
      </varlistentry>
 
329
      
 
330
      <varlistentry>
 
331
        <term><option>--tls-keytype
 
332
        <replaceable>KEYTYPE</replaceable></option></term>
 
333
        <term><option>-T
 
334
        <replaceable>KEYTYPE</replaceable></option></term>
 
335
        <listitem>
 
336
          <para>
 
337
            TLS key type.  Default is <quote>ed25519</quote>
 
338
          </para>
 
339
        </listitem>
 
340
      </varlistentry>
 
341
      
 
342
      <varlistentry>
 
343
        <term><option>--force</option></term>
 
344
        <term><option>-f</option></term>
 
345
        <listitem>
 
346
          <para>
 
347
            Force overwriting old key.
 
348
          </para>
 
349
        </listitem>
 
350
      </varlistentry>
 
351
      <varlistentry>
 
352
        <term><option>--password</option></term>
 
353
        <term><option>-p</option></term>
 
354
        <listitem>
 
355
          <para>
 
356
            Prompt for a password and encrypt it with the key already
 
357
            present in either <filename>/etc/mandos</filename> or the
 
358
            directory specified with the <option>--dir</option>
 
359
            option.  Outputs, on standard output, a section suitable
 
360
            for inclusion in <citerefentry><refentrytitle
 
361
            >mandos-clients.conf</refentrytitle><manvolnum
 
362
            >8</manvolnum></citerefentry>.  The host name or the name
 
363
            specified with the <option>--name</option> option is used
 
364
            for the section header.  All other options are ignored,
 
365
            and no key is created.
 
366
          </para>
 
367
        </listitem>
 
368
      </varlistentry>
 
369
      <varlistentry>
 
370
        <term><option>--passfile
 
371
        <replaceable>FILE</replaceable></option></term>
 
372
        <term><option>-F
 
373
        <replaceable>FILE</replaceable></option></term>
 
374
        <listitem>
 
375
          <para>
 
376
            The same as <option>--password</option>, but read from
 
377
            <replaceable>FILE</replaceable>, not the terminal.
 
378
          </para>
 
379
        </listitem>
 
380
      </varlistentry>
 
381
      <varlistentry>
 
382
        <term><option>--no-ssh</option></term>
 
383
        <term><option>-S</option></term>
 
384
        <listitem>
 
385
          <para>
 
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.
 
394
          </para>
 
395
        </listitem>
 
396
      </varlistentry>
 
397
    </variablelist>
 
398
  </refsect1>
 
399
  
 
400
  <refsect1 id="overview">
 
401
    <title>OVERVIEW</title>
 
402
    <xi:include href="overview.xml"/>
 
403
    <para>
 
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.
 
407
    </para>
 
408
  </refsect1>
 
409
  
 
410
  <refsect1 id="exit_status">
 
411
    <title>EXIT STATUS</title>
 
412
    <para>
 
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.
 
416
    </para>
 
417
  </refsect1>
 
418
  
 
419
  <refsect1 id="environment">
 
420
    <title>ENVIRONMENT</title>
 
421
    <variablelist>
 
422
      <varlistentry>
 
423
        <term><envar>TMPDIR</envar></term>
 
424
        <listitem>
 
425
          <para>
 
426
            If set, temporary files will be created here. See
 
427
            <citerefentry><refentrytitle>mktemp</refentrytitle>
 
428
            <manvolnum>1</manvolnum></citerefentry>.
 
429
          </para>
 
430
        </listitem>
 
431
      </varlistentry>
 
432
    </variablelist>
 
433
  </refsect1>
 
434
  
 
435
  <refsect1 id="files">
 
436
    <title>FILES</title>
 
437
    <para>
 
438
      Use the <option>--dir</option> option to change where
 
439
      <command>&COMMANDNAME;</command> will write the key files.  The
 
440
      default file names are shown here.
 
441
    </para>
 
442
    <variablelist>
 
443
      <varlistentry>
 
444
        <term><filename>/etc/mandos/seckey.txt</filename></term>
 
445
        <listitem>
 
446
          <para>
 
447
            OpenPGP secret key file which will be created or
 
448
            overwritten.
 
449
          </para>
 
450
        </listitem>
 
451
      </varlistentry>
 
452
      <varlistentry>
 
453
        <term><filename>/etc/mandos/pubkey.txt</filename></term>
 
454
        <listitem>
 
455
          <para>
 
456
            OpenPGP public key file which will be created or
 
457
            overwritten.
 
458
          </para>
 
459
        </listitem>
 
460
      </varlistentry>
 
461
      <varlistentry>
 
462
        <term><filename>/etc/keys/mandos/tls-privkey.pem</filename></term>
 
463
        <listitem>
 
464
          <para>
 
465
            Private key file which will be created or overwritten.
 
466
          </para>
 
467
        </listitem>
 
468
      </varlistentry>
 
469
      <varlistentry>
 
470
        <term><filename>/etc/keys/mandos/tls-pubkey.pem</filename></term>
 
471
        <listitem>
 
472
          <para>
 
473
            Public key file which will be created or overwritten.
 
474
          </para>
 
475
        </listitem>
 
476
      </varlistentry>
 
477
      <varlistentry>
 
478
        <term><filename class="directory">/tmp</filename></term>
 
479
        <listitem>
 
480
          <para>
 
481
            Temporary files will be written here if
 
482
            <varname>TMPDIR</varname> is not set.
 
483
          </para>
 
484
        </listitem>
 
485
      </varlistentry>
 
486
    </variablelist>
 
487
  </refsect1>
 
488
  
 
489
  <refsect1 id="bugs">
 
490
    <title>BUGS</title>
 
491
    <xi:include href="bugs.xml"/>
 
492
  </refsect1>
 
493
  
 
494
  <refsect1 id="example">
 
495
    <title>EXAMPLE</title>
 
496
    <informalexample>
 
497
      <para>
 
498
        Normal invocation needs no options:
 
499
      </para>
 
500
      <para>
 
501
        <userinput>&COMMANDNAME;</userinput>
 
502
      </para>
 
503
    </informalexample>
 
504
    <informalexample>
 
505
      <para>
 
506
        Create key in another directory and of another type.  Force
 
507
        overwriting old key files:
 
508
      </para>
 
509
      <para>
 
510
 
 
511
<!-- do not wrap this line -->
 
512
<userinput>&COMMANDNAME; --dir ~/keydir --type RSA --force</userinput>
 
513
 
 
514
      </para>
 
515
    </informalexample>
 
516
    <informalexample>
 
517
      <para>
 
518
        Prompt for a password, encrypt it with the key in <filename
 
519
        class="directory">/etc/mandos</filename> and output a section
 
520
        suitable for <filename>clients.conf</filename>.
 
521
      </para>
 
522
      <para>
 
523
        <userinput>&COMMANDNAME; --password</userinput>
 
524
      </para>
 
525
    </informalexample>
 
526
    <informalexample>
 
527
      <para>
 
528
        Prompt for a password, encrypt it with the key in the
 
529
        <filename>client-key</filename> directory and output a section
 
530
        suitable for <filename>clients.conf</filename>.
 
531
      </para>
 
532
      <para>
 
533
 
 
534
<!-- do not wrap this line -->
 
535
<userinput>&COMMANDNAME; --password --dir client-key</userinput>
 
536
 
 
537
      </para>
 
538
    </informalexample>
 
539
  </refsect1>
 
540
  
 
541
  <refsect1 id="security">
 
542
    <title>SECURITY</title>
 
543
    <para>
 
544
      The <option>--type</option>, <option>--length</option>,
 
545
      <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.
 
548
    </para>
 
549
    <para>
 
550
      The key expire time is <emphasis>not</emphasis> guaranteed to be
 
551
      honored by <citerefentry><refentrytitle>mandos</refentrytitle>
 
552
      <manvolnum>8</manvolnum></citerefentry>.
 
553
    </para>
 
554
  </refsect1>
 
555
  
 
556
  <refsect1 id="see_also">
 
557
    <title>SEE ALSO</title>
 
558
    <para>
 
559
      <citerefentry><refentrytitle>intro</refentrytitle>
 
560
      <manvolnum>8mandos</manvolnum></citerefentry>,
 
561
      <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
      <manvolnum>1</manvolnum></citerefentry>
 
571
    </para>
 
572
  </refsect1>
 
573
  
 
574
</refentry>
 
575
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576
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577
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578
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579
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