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 © 2008,2009 Teddy Hogeborn
6
# Copyright © 2008,2009 Björn Påhlsson
8
# This program is free software: you can redistribute it and/or modify
9
# it under the terms of the GNU General Public License as published by
12
10
# the Free Software Foundation, either version 3 of the License, or
13
11
# (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
13
# This program is distributed in the hope that it will be useful,
14
# but WITHOUT ANY WARRANTY; without even the implied warranty of
17
15
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18
16
# GNU General Public License for more details.
20
18
# You should have received a copy of the GNU General Public License
21
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
19
# along with this program. If not, see <http://www.gnu.org/licenses/>.
23
# Contact the authors at <mandos@recompile.se>.
21
# Contact the authors at <mandos@fukt.bsnet.se>.
28
26
KEYDIR="/etc/keys/mandos"
33
31
KEYNAME="`hostname --fqdn 2>/dev/null || hostname`"
33
KEYCOMMENT="Mandos client key"
40
36
KEYCOMMENT_ORIG="$KEYCOMMENT"
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 \
44
TEMP=`getopt --options vhpF:d:t:l:s:L:n:e:c:x:f \
45
--longoptions version,help,password,passfile:,dir:,type:,length:,subtype:,sublength:,name:,email:,comment:,expire:,force \
50
46
--name "$0" -- "$@"`
53
basename="`basename "$0"`"
49
basename="`basename $0`"
55
51
Usage: $basename [ -v | --version ]
56
52
$basename [ -h | --help ]
64
60
-v, --version Show program's version number and exit
65
61
-h, --help Show this help message and exit
66
62
-d DIR, --dir DIR Target directory for key files
67
-t TYPE, --type TYPE OpenPGP key type. Default is RSA.
63
-t TYPE, --type TYPE Key type. Default is DSA.
68
64
-l BITS, --length BITS
69
OpenPGP key length in bits. Default is 4096.
65
Key length in bits. Default is 2048.
70
66
-s TYPE, --subtype TYPE
71
OpenPGP subkey type. Default is RSA.
67
Subkey type. Default is ELG-E.
72
68
-L BITS, --sublength BITS
73
OpenPGP subkey length in bits. Default 4096.
69
Subkey length in bits. Default is 2048.
74
70
-n NAME, --name NAME Name of key. Default is the FQDN.
75
71
-e ADDRESS, --email ADDRESS
76
Email address of OpenPGP key. Default empty.
72
Email address of key. Default is empty.
77
73
-c TEXT, --comment TEXT
78
Comment field for OpenPGP key. Default empty.
74
Comment field for key. The default value is
79
76
-x TIME, --expire TIME
80
OpenPGP key expire time. Default is none.
77
Key expire time. Default is no expiration.
81
78
See gpg(1) for syntax.
82
-T TYPE, --tls-keytype TYPE
83
TLS key type. Default is ed25519.
84
79
-f, --force Force overwriting old key files.
86
81
Password creation options:
109
103
-e|--email) KEYEMAIL="$2"; shift 2;;
110
104
-c|--comment) KEYCOMMENT="$2"; shift 2;;
111
105
-x|--expire) KEYEXPIRE="$2"; shift 2;;
112
-T|--tls-keytype) TLS_KEYTYPE="$2"; shift 2;;
113
106
-f|--force) FORCE=yes; shift;;
114
-S|--no-ssh) SSH=no; shift;;
115
107
-v|--version) echo "$0 $VERSION"; exit;;
116
108
-h|--help) help; exit;;
117
109
--) shift; break;;
121
113
if [ "$#" -gt 0 ]; then
122
echo "Unknown arguments: '$*'" >&2
114
echo "Unknown arguments: '$@'" >&2
126
118
SECKEYFILE="$KEYDIR/seckey.txt"
127
119
PUBKEYFILE="$KEYDIR/pubkey.txt"
128
TLS_PRIVKEYFILE="$KEYDIR/tls-privkey.pem"
129
TLS_PUBKEYFILE="$KEYDIR/tls-pubkey.pem"
131
121
# Check for some invalid values
132
122
if [ ! -d "$KEYDIR" ]; then
169
159
[Nn][Oo]|[Ff][Aa][Ll][Ss][Ee]|*) FORCE=0;;
172
if { [ -e "$SECKEYFILE" ] || [ -e "$PUBKEYFILE" ] \
173
|| [ -e "$TLS_PRIVKEYFILE" ] \
174
|| [ -e "$TLS_PUBKEYFILE" ]; } \
175
&& [ "$FORCE" -eq 0 ]; then
162
if [ \( -e "$SECKEYFILE" -o -e "$PUBKEYFILE" \) \
163
-a "$FORCE" -eq 0 ]; then
176
164
echo "Refusing to overwrite old key files; use --force" >&2
184
172
if [ -n "$KEYEMAIL" ]; then
185
173
KEYEMAILLINE="Name-Email: $KEYEMAIL"
188
176
# Create temporary gpg batch file
189
177
BATCHFILE="`mktemp -t mandos-keygen-batch.XXXXXXXXXX`"
190
TLS_PRIVKEYTMP="`mktemp -t mandos-keygen-privkey.XXXXXXXXXX`"
193
180
if [ "$mode" = password ]; then
204
191
test -n \"$SECFILE\" && shred --remove \"$SECFILE\"; \
205
test -n \"$TLS_PRIVKEYTMP\" && shred --remove \"$TLS_PRIVKEYTMP\"; \
206
shred --remove \"$RINGDIR\"/sec* 2>/dev/null;
192
shred --remove \"$RINGDIR\"/sec*;
207
193
test -n \"$BATCHFILE\" && rm --force \"$BATCHFILE\"; \
208
194
rm --recursive --force \"$RINGDIR\";
209
tty --quiet && stty echo; \
216
200
if [ "$mode" = keygen ]; then
230
214
#Handle: <no-spaces>
231
215
#%pubring pubring.gpg
232
216
#%secring secring.gpg
239
Note: Due to entropy requirements, key generation could take
240
anything from a few minutes to SEVERAL HOURS. Please be
241
patient and/or supply the system with more entropy if needed.
247
# Generate TLS private key
248
if certtool --generate-privkey --password='' \
249
--outfile "$TLS_PRIVKEYTMP" --sec-param ultra \
250
--key-type="$TLS_KEYTYPE" --pkcs8 --no-text 2>/dev/null; then
252
# Backup any old key files
253
if cp --backup=numbered --force "$TLS_PRIVKEYFILE" "$TLS_PRIVKEYFILE" \
255
shred --remove "$TLS_PRIVKEYFILE" 2>/dev/null || :
257
if cp --backup=numbered --force "$TLS_PUBKEYFILE" "$TLS_PUBKEYFILE" \
259
rm --force "$TLS_PUBKEYFILE"
261
cp --archive "$TLS_PRIVKEYTMP" "$TLS_PRIVKEYFILE"
262
shred --remove "$TLS_PRIVKEYTMP" 2>/dev/null || :
266
# First try certtool from GnuTLS
267
if ! certtool --password='' --load-privkey="$TLS_PRIVKEYFILE" \
268
--outfile="$TLS_PUBKEYFILE" --pubkey-info --no-text \
270
# Otherwise try OpenSSL
271
if ! openssl pkey -in "$TLS_PRIVKEYFILE" \
272
-out "$TLS_PUBKEYFILE" -pubout; then
273
rm --force "$TLS_PUBKEYFILE"
274
# None of the commands succeded; give up
280
# Make sure trustdb.gpg exists;
281
# this is a workaround for Debian bug #737128
282
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
283
--homedir "$RINGDIR" \
284
--import-ownertrust < /dev/null
285
220
# Generate a new key in the key rings
286
221
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
287
222
--homedir "$RINGDIR" --trust-model always \
288
223
--gen-key "$BATCHFILE"
289
224
rm --force "$BATCHFILE"
296
226
# Backup any old key files
297
227
if cp --backup=numbered --force "$SECKEYFILE" "$SECKEYFILE" \
298
228
2>/dev/null; then
299
shred --remove "$SECKEYFILE" 2>/dev/null || :
229
shred --remove "$SECKEYFILE"
301
231
if cp --backup=numbered --force "$PUBKEYFILE" "$PUBKEYFILE" \
302
232
2>/dev/null; then
325
255
if [ "$mode" = password ]; then
329
[Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]) SSH=1;;
330
[Nn][Oo]|[Ff][Aa][Ll][Ss][Ee]|*) SSH=0;;
333
if [ $SSH -eq 1 ]; then
334
for ssh_keytype in ecdsa-sha2-nistp256 ed25519 rsa; do
336
ssh_fingerprint="`ssh-keyscan -t $ssh_keytype localhost 2>/dev/null`"
339
if [ $err -ne 0 ]; then
343
if [ -n "$ssh_fingerprint" ]; then
344
ssh_fingerprint="${ssh_fingerprint#localhost }"
350
256
# Import key into temporary key rings
351
257
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
352
258
--homedir "$RINGDIR" --trust-model always --armor \
358
264
# Get fingerprint of key
359
265
FINGERPRINT="`gpg --quiet --batch --no-tty --no-options \
360
--enable-dsa2 --homedir "$RINGDIR" --trust-model always \
266
--enable-dsa2 --homedir \"$RINGDIR\" --trust-model always \
361
267
--fingerprint --with-colons \
363
269
--expression='/^fpr:/{s/^fpr:.*:\\([0-9A-Z]*\\):\$/\\1/p;q}'`"
365
271
test -n "$FINGERPRINT"
367
if [ -r "$TLS_PUBKEYFILE" ]; then
368
KEY_ID="$(certtool --key-id --hash=sha256 \
369
--infile="$TLS_PUBKEYFILE" 2>/dev/null || :)"
371
if [ -z "$KEY_ID" ]; then
372
KEY_ID=$(openssl pkey -pubin -in "$TLS_PUBKEYFILE" \
375
| sed --expression='s/^.*[^[:xdigit:]]//')
380
273
FILECOMMENT="Encrypted password for a Mandos client"
382
while [ ! -s "$SECFILE" ]; do
383
if [ -n "$PASSFILE" ]; then
275
if [ -n "$PASSFILE" ]; then
279
echo -n "Enter passphrase: " >&2
280
first="$(head --lines=1 | tr --delete '\n')"
281
echo -n -e "\nRepeat passphrase: " >&2
282
second="$(head --lines=1 | tr --delete '\n')"
285
if [ "$first" != "$second" ]; then
286
echo -e "Passphrase mismatch" >&2
386
tty --quiet && stty -echo
387
echo -n "Enter passphrase: " >/dev/tty
389
tty --quiet && echo >&2
390
echo -n "Repeat passphrase: " >/dev/tty
396
if [ "$first" != "$second" ]; then
397
echo "Passphrase mismatch" >&2
398
touch "$RINGDIR"/mismatch
402
fi | gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
403
--homedir "$RINGDIR" --trust-model always --armor \
404
--encrypt --sign --recipient "$FINGERPRINT" --comment \
405
"$FILECOMMENT" > "$SECFILE"
406
if [ -e "$RINGDIR"/mismatch ]; then
407
rm --force "$RINGDIR"/mismatch
291
fi | gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
292
--homedir "$RINGDIR" --trust-model always --armor --encrypt \
293
--sign --recipient "$FINGERPRINT" --comment "$FILECOMMENT" \
295
status="${PIPESTATUS[0]}"
296
if [ "$status" -ne 0 ]; then
420
if [ -n "$KEY_ID" ]; then
421
echo "key_id = $KEY_ID"
424
303
fingerprint = $FINGERPRINT
445
320
# Remove the password file, if any
446
321
if [ -n "$SECFILE" ]; then
447
shred --remove "$SECFILE" 2>/dev/null
322
shred --remove "$SECFILE"
449
324
# Remove the key rings
450
shred --remove "$RINGDIR"/sec* 2>/dev/null
325
shred --remove "$RINGDIR"/sec*
451
326
rm --recursive --force "$RINGDIR"
added
removed
mandos-keygen
