3
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
5
# Copyright © 2008-2017 Teddy Hogeborn
6
# Copyright © 2008-2017 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
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
10
12
# the Free Software Foundation, either version 3 of the License, or
11
13
# (at your option) any later version.
13
# This program is distributed in the hope that it will be useful,
14
# but WITHOUT ANY WARRANTY; without even the implied warranty of
15
# Mandos is distributed in the hope that it will be useful, but
16
# WITHOUT ANY WARRANTY; without even the implied warranty of
15
17
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16
18
# GNU General Public License for more details.
18
20
# You should have received a copy of the GNU General Public License
19
# along with this program. If not, see <http://www.gnu.org/licenses/>.
21
# along with Mandos. If not, see <http://www.gnu.org/licenses/>.
21
# Contact the authors at <mandos@fukt.bsnet.se>.
23
# Contact the authors at <mandos@recompile.se>.
26
28
KEYDIR="/etc/keys/mandos"
31
33
KEYNAME="`hostname --fqdn 2>/dev/null || hostname`"
33
KEYCOMMENT="Mandos client key"
36
39
KEYCOMMENT_ORIG="$KEYCOMMENT"
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 \
47
TEMP=`getopt --options vhpF:d:t:l:s:L:n:e:c:x:fS \
48
--longoptions version,help,password,passfile:,dir:,type:,length:,subtype:,sublength:,name:,email:,comment:,expire:,force,no-ssh \
46
49
--name "$0" -- "$@"`
49
basename="`basename $0`"
52
basename="`basename "$0"`"
51
54
Usage: $basename [ -v | --version ]
52
55
$basename [ -h | --help ]
60
63
-v, --version Show program's version number and exit
61
64
-h, --help Show this help message and exit
62
65
-d DIR, --dir DIR Target directory for key files
63
-t TYPE, --type TYPE Key type. Default is DSA.
66
-t TYPE, --type TYPE Key type. Default is RSA.
64
67
-l BITS, --length BITS
65
Key length in bits. Default is 2048.
68
Key length in bits. Default is 4096.
66
69
-s TYPE, --subtype TYPE
67
Subkey type. Default is ELG-E.
70
Subkey type. Default is RSA.
68
71
-L BITS, --sublength BITS
69
Subkey length in bits. Default is 2048.
72
Subkey length in bits. Default is 4096.
70
73
-n NAME, --name NAME Name of key. Default is the FQDN.
71
74
-e ADDRESS, --email ADDRESS
72
75
Email address of key. Default is empty.
73
76
-c TEXT, --comment TEXT
74
Comment field for key. The default value is
77
Comment field for key. The default is empty.
76
78
-x TIME, --expire TIME
77
79
Key expire time. Default is no expiration.
78
80
See gpg(1) for syntax.
86
88
Encrypt a password from FILE using the key in
87
89
the key directory. All options other than
88
90
--dir and --name are ignored.
91
-S, --no-ssh Don't get SSH key or set "checker" option.
104
107
-c|--comment) KEYCOMMENT="$2"; shift 2;;
105
108
-x|--expire) KEYEXPIRE="$2"; shift 2;;
106
109
-f|--force) FORCE=yes; shift;;
110
-S|--no-ssh) SSH=no; shift;;
107
111
-v|--version) echo "$0 $VERSION"; exit;;
108
112
-h|--help) help; exit;;
109
113
--) shift; break;;
159
163
[Nn][Oo]|[Ff][Aa][Ll][Ss][Ee]|*) FORCE=0;;
162
if [ \( -e "$SECKEYFILE" -o -e "$PUBKEYFILE" \) \
163
-a "$FORCE" -eq 0 ]; then
166
if { [ -e "$SECKEYFILE" ] || [ -e "$PUBKEYFILE" ]; } \
167
&& [ "$FORCE" -eq 0 ]; then
164
168
echo "Refusing to overwrite old key files; use --force" >&2
191
195
test -n \"$SECFILE\" && shred --remove \"$SECFILE\"; \
192
shred --remove \"$RINGDIR\"/sec*;
196
shred --remove \"$RINGDIR\"/sec* 2>/dev/null;
193
197
test -n \"$BATCHFILE\" && rm --force \"$BATCHFILE\"; \
194
198
rm --recursive --force \"$RINGDIR\";
199
tty --quiet && stty echo; \
200
206
if [ "$mode" = keygen ]; then
202
208
cat >"$BATCHFILE" <<-EOF
203
209
Key-Type: $KEYTYPE
204
210
Key-Length: $KEYLENGTH
205
#Key-Usage: encrypt,sign,auth
206
212
Subkey-Type: $SUBKEYTYPE
207
213
Subkey-Length: $SUBKEYLENGTH
208
#Subkey-Usage: encrypt,sign,auth
214
Subkey-Usage: encrypt
209
215
Name-Real: $KEYNAME
214
220
#Handle: <no-spaces>
215
221
#%pubring pubring.gpg
216
222
#%secring secring.gpg
229
Note: Due to entropy requirements, key generation could take
230
anything from a few minutes to SEVERAL HOURS. Please be
231
patient and/or supply the system with more entropy if needed.
237
# Make sure trustdb.gpg exists;
238
# this is a workaround for Debian bug #737128
239
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
240
--homedir "$RINGDIR" \
241
--import-ownertrust < /dev/null
220
242
# Generate a new key in the key rings
221
243
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
222
244
--homedir "$RINGDIR" --trust-model always \
223
245
--gen-key "$BATCHFILE"
224
246
rm --force "$BATCHFILE"
226
253
# Backup any old key files
227
254
if cp --backup=numbered --force "$SECKEYFILE" "$SECKEYFILE" \
228
255
2>/dev/null; then
255
282
if [ "$mode" = password ]; then
286
[Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]) SSH=1;;
287
[Nn][Oo]|[Ff][Aa][Ll][Ss][Ee]|*) SSH=0;;
290
if [ $SSH -eq 1 ]; then
291
for ssh_keytype in ecdsa-sha2-nistp256 ed25519 rsa; do
293
ssh_fingerprint="`ssh-keyscan -t $ssh_keytype localhost 2>/dev/null`"
296
if [ $err -ne 0 ]; then
300
if [ -n "$ssh_fingerprint" ]; then
301
ssh_fingerprint="${ssh_fingerprint#localhost }"
256
307
# Import key into temporary key rings
257
308
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
258
309
--homedir "$RINGDIR" --trust-model always --armor \
264
315
# Get fingerprint of key
265
316
FINGERPRINT="`gpg --quiet --batch --no-tty --no-options \
266
--enable-dsa2 --homedir \"$RINGDIR\" --trust-model always \
317
--enable-dsa2 --homedir "$RINGDIR" --trust-model always \
267
318
--fingerprint --with-colons \
269
320
--expression='/^fpr:/{s/^fpr:.*:\\([0-9A-Z]*\\):\$/\\1/p;q}'`"
273
324
FILECOMMENT="Encrypted password for a Mandos client"
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" != "$second" ]; then
286
echo -e "Passphrase mismatch" >&2
287
touch "$RINGDIR"/mismatch
326
while [ ! -s "$SECFILE" ]; do
327
if [ -n "$PASSFILE" ]; then
330
tty --quiet && stty -echo
331
echo -n "Enter passphrase: " >/dev/tty
333
tty --quiet && echo >&2
334
echo -n "Repeat passphrase: " >/dev/tty
340
if [ "$first" != "$second" ]; then
341
echo "Passphrase mismatch" >&2
342
touch "$RINGDIR"/mismatch
346
fi | gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
347
--homedir "$RINGDIR" --trust-model always --armor \
348
--encrypt --sign --recipient "$FINGERPRINT" --comment \
349
"$FILECOMMENT" > "$SECFILE"
350
if [ -e "$RINGDIR"/mismatch ]; then
351
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
if [ -e "$RINGDIR"/mismatch ]; then
296
rm --force "$RINGDIR"/mismatch
added
removed
mandos-keygen
