3
# Mandos key generator - create new keys for a Mandos client
5
# Copyright © 2008-2019 Teddy Hogeborn
6
# Copyright © 2008-2019 Björn Påhlsson
8
# This file is part of Mandos.
10
# Mandos is free software: you can redistribute it and/or modify it
11
# under the terms of the GNU General Public License as published by
3
# Mandos key generator - create a new OpenPGP key for a Mandos client
5
# Copyright © 2007-2008 Teddy Hogeborn & Björn Påhlsson
7
# This program is free software: you can redistribute it and/or modify
8
# it under the terms of the GNU General Public License as published by
12
9
# the Free Software Foundation, either version 3 of the License, or
13
10
# (at your option) any later version.
15
# Mandos is distributed in the hope that it will be useful, but
16
# WITHOUT ANY WARRANTY; without even the implied warranty of
12
# This program is distributed in the hope that it will be useful,
13
# but WITHOUT ANY WARRANTY; without even the implied warranty of
17
14
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18
15
# GNU General Public License for more details.
20
17
# You should have received a copy of the GNU General Public License
21
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
18
# along with this program. If not, see <http://www.gnu.org/licenses/>.
23
# Contact the authors at <mandos@recompile.se>.
20
# Contact the authors at <mandos@fukt.bsnet.se>.
28
25
KEYDIR="/etc/keys/mandos"
33
KEYNAME="`hostname --fqdn 2>/dev/null || hostname`"
30
KEYNAME="`hostname --fqdn`"
32
KEYCOMMENT="Mandos client key"
40
35
KEYCOMMENT_ORIG="$KEYCOMMENT"
43
if [ ! -d "$KEYDIR" ]; then
44
KEYDIR="/etc/mandos/keys"
48
TEMP=`getopt --options vhpF:d:t:l:s:L:n:e:c:x:T:fS \
49
--longoptions version,help,password,passfile:,dir:,type:,length:,subtype:,sublength:,name:,email:,comment:,expire:,tls-keytype:,force,no-ssh \
39
TEMP=`getopt --options vhd:t:l:n:e:c:x:f \
40
--longoptions version,help,password,dir:,type:,length:,subtype:,sublength:,name:,email:,comment:,expire:,force \
50
41
--name "$0" -- "$@"`
53
basename="`basename "$0"`"
44
basename="`basename $0`"
55
46
Usage: $basename [ -v | --version ]
56
47
$basename [ -h | --help ]
58
49
$basename [ OPTIONS ]
59
50
Encrypted password creation:
60
51
$basename { -p | --password } [ --name NAME ] [ --dir DIR]
61
$basename { -F | --passfile } FILE [ --name NAME ] [ --dir DIR]
63
53
Key creation options:
64
54
-v, --version Show program's version number and exit
65
55
-h, --help Show this help message and exit
66
56
-d DIR, --dir DIR Target directory for key files
67
-t TYPE, --type TYPE OpenPGP key type. Default is RSA.
57
-t TYPE, --type TYPE Key type. Default is DSA.
68
58
-l BITS, --length BITS
69
OpenPGP key length in bits. Default is 4096.
59
Key length in bits. Default is 2048.
70
60
-s TYPE, --subtype TYPE
71
OpenPGP subkey type. Default is RSA.
61
Subkey type. Default is ELG-E.
72
62
-L BITS, --sublength BITS
73
OpenPGP subkey length in bits. Default 4096.
63
Subkey length in bits. Default is 2048.
74
64
-n NAME, --name NAME Name of key. Default is the FQDN.
75
65
-e ADDRESS, --email ADDRESS
76
Email address of OpenPGP key. Default empty.
66
Email address of key. Default is empty.
77
67
-c TEXT, --comment TEXT
78
Comment field for OpenPGP key. Default empty.
68
Comment field for key. The default value is
79
70
-x TIME, --expire TIME
80
OpenPGP key expire time. Default is none.
71
Key expire time. Default is no expiration.
81
72
See gpg(1) for syntax.
82
-T TYPE, --tls-keytype TYPE
83
TLS key type. Default is ed25519.
84
-f, --force Force overwriting old key files.
73
-f, --force Force overwriting old keys.
86
75
Password creation options:
87
-p, --password Create an encrypted password using the key in
88
the key directory. All options other than
89
--dir and --name are ignored.
90
-F FILE, --passfile FILE
91
Encrypt a password from FILE using the key in
92
the key directory. All options other than
93
--dir and --name are ignored.
94
-S, --no-ssh Don't get SSH key or set "checker" option.
76
-p, --password Create an encrypted password using the keys in
77
the key directory. All options other than
78
--dir and --name are ignored.
121
102
if [ "$#" -gt 0 ]; then
122
echo "Unknown arguments: '$*'" >&2
103
echo "Unknown arguments: '$@'" >&2
126
107
SECKEYFILE="$KEYDIR/seckey.txt"
127
108
PUBKEYFILE="$KEYDIR/pubkey.txt"
128
TLS_PRIVKEYFILE="$KEYDIR/tls-privkey.pem"
129
TLS_PUBKEYFILE="$KEYDIR/tls-pubkey.pem"
131
110
# Check for some invalid values
132
111
if [ ! -d "$KEYDIR" ]; then
169
148
[Nn][Oo]|[Ff][Aa][Ll][Ss][Ee]|*) FORCE=0;;
172
if { [ -e "$SECKEYFILE" ] || [ -e "$PUBKEYFILE" ] \
173
|| [ -e "$TLS_PRIVKEYFILE" ] \
174
|| [ -e "$TLS_PUBKEYFILE" ]; } \
175
&& [ "$FORCE" -eq 0 ]; then
151
if [ \( -e "$SECKEYFILE" -o -e "$PUBKEYFILE" \) \
152
-a "$FORCE" -eq 0 ]; then
176
153
echo "Refusing to overwrite old key files; use --force" >&2
228
203
#Handle: <no-spaces>
229
204
#%pubring pubring.gpg
230
205
#%secring secring.gpg
237
Note: Due to entropy requirements, key generation could take
238
anything from a few minutes to SEVERAL HOURS. Please be
239
patient and/or supply the system with more entropy if needed.
245
# Backup any old key files
246
if cp --backup=numbered --force "$TLS_PRIVKEYFILE" "$TLS_PRIVKEYFILE" \
248
shred --remove "$TLS_PRIVKEYFILE"
250
if cp --backup=numbered --force "$TLS_PUBKEYFILE" "$TLS_PUBKEYFILE" \
252
rm --force "$TLS_PUBKEYFILE"
255
## Generate TLS private key
257
# First try certtool from GnuTLS
258
if ! certtool --generate-privkey --password='' \
259
--outfile "$TLS_PRIVKEYFILE" --sec-param ultra \
260
--key-type="$TLS_KEYTYPE" --pkcs8 --no-text 2>/dev/null; then
261
# Otherwise try OpenSSL
262
if ! openssl genpkey -algorithm X25519 -out \
263
/etc/keys/mandos/tls-privkey.pem; then
264
rm --force /etc/keys/mandos/tls-privkey.pem
265
# None of the commands succeded; give up
272
# First try certtool from GnuTLS
273
if ! certtool --password='' --load-privkey="$TLS_PRIVKEYFILE" \
274
--outfile="$TLS_PUBKEYFILE" --pubkey-info --no-text \
276
# Otherwise try OpenSSL
277
if ! openssl pkey -in "$TLS_PRIVKEYFILE" \
278
-out "$TLS_PUBKEYFILE" -pubout; then
279
rm --force "$TLS_PUBKEYFILE"
280
# None of the commands succeded; give up
285
# Make sure trustdb.gpg exists;
286
# this is a workaround for Debian bug #737128
287
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
288
--homedir "$RINGDIR" \
289
--import-ownertrust < /dev/null
290
209
# Generate a new key in the key rings
291
210
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
292
211
--homedir "$RINGDIR" --trust-model always \
293
212
--gen-key "$BATCHFILE"
294
213
rm --force "$BATCHFILE"
301
215
# Backup any old key files
302
216
if cp --backup=numbered --force "$SECKEYFILE" "$SECKEYFILE" \
303
217
2>/dev/null; then
330
244
if [ "$mode" = password ]; then
334
[Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]) SSH=1;;
335
[Nn][Oo]|[Ff][Aa][Ll][Ss][Ee]|*) SSH=0;;
338
if [ $SSH -eq 1 ]; then
339
for ssh_keytype in ecdsa-sha2-nistp256 ed25519 rsa; do
341
ssh_fingerprint="`ssh-keyscan -t $ssh_keytype localhost 2>/dev/null`"
344
if [ $err -ne 0 ]; then
348
if [ -n "$ssh_fingerprint" ]; then
349
ssh_fingerprint="${ssh_fingerprint#localhost }"
355
# Import key into temporary key rings
245
# Import keys into temporary key rings
356
246
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
357
247
--homedir "$RINGDIR" --trust-model always --armor \
358
248
--import "$SECKEYFILE"
363
253
# Get fingerprint of key
364
254
FINGERPRINT="`gpg --quiet --batch --no-tty --no-options \
365
--enable-dsa2 --homedir "$RINGDIR" --trust-model always \
255
--enable-dsa2 --homedir \"$RINGDIR\" --trust-model always \
366
256
--fingerprint --with-colons \
368
258
--expression='/^fpr:/{s/^fpr:.*:\\([0-9A-Z]*\\):\$/\\1/p;q}'`"
370
260
test -n "$FINGERPRINT"
372
KEY_ID="$(certtool --key-id --hash=sha256 \
373
--infile="$TLS_PUBKEYFILE" 2>/dev/null || :)"
375
if [ -z "$KEY_ID" ]; then
376
KEY_ID=$(openssl pkey -pubin -in /tmp/tls-pubkey.pem \
379
| sed --expression='s/^.*[^[:xdigit:]]//')
383
262
FILECOMMENT="Encrypted password for a Mandos client"
385
while [ ! -s "$SECFILE" ]; do
386
if [ -n "$PASSFILE" ]; then
389
tty --quiet && stty -echo
390
echo -n "Enter passphrase: " >/dev/tty
392
tty --quiet && echo >&2
393
echo -n "Repeat passphrase: " >/dev/tty
399
if [ "$first" != "$second" ]; then
400
echo "Passphrase mismatch" >&2
401
touch "$RINGDIR"/mismatch
405
fi | gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
406
--homedir "$RINGDIR" --trust-model always --armor \
407
--encrypt --sign --recipient "$FINGERPRINT" --comment \
408
"$FILECOMMENT" > "$SECFILE"
409
if [ -e "$RINGDIR"/mismatch ]; then
410
rm --force "$RINGDIR"/mismatch
265
echo -n "Enter passphrase: " >&2
266
head --lines=1 | tr --delete '\n' \
267
| gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
268
--homedir "$RINGDIR" --trust-model always --armor --encrypt \
269
--recipient "$FINGERPRINT" --comment "$FILECOMMENT" \
423
277
fingerprint = $FINGERPRINT
426
280
sed --quiet --expression='
427
281
/^-----BEGIN PGP MESSAGE-----$/,/^-----END PGP MESSAGE-----$/{
added
removed
mandos-keygen
