3
3
# Mandos key generator - create a new OpenPGP key for a Mandos client
5
# Copyright © 2008-2016 Teddy Hogeborn
6
# Copyright © 2008-2016 Björn Påhlsson
5
# Copyright © 2007-2008 Teddy Hogeborn & Björn Påhlsson
8
7
# This program is free software: you can redistribute it and/or modify
9
8
# it under the terms of the GNU General Public License as published by
18
17
# You should have received a copy of the GNU General Public License
19
18
# along with this program. If not, see <http://www.gnu.org/licenses/>.
21
# Contact the authors at <mandos@recompile.se>.
20
# Contact the authors at <mandos@fukt.bsnet.se>.
26
25
KEYDIR="/etc/keys/mandos"
31
KEYNAME="`hostname --fqdn 2>/dev/null || hostname`"
30
KEYNAME="`hostname --fqdn`"
32
KEYCOMMENT="Mandos client key"
37
35
KEYCOMMENT_ORIG="$KEYCOMMENT"
40
if [ ! -d "$KEYDIR" ]; then
41
KEYDIR="/etc/mandos/keys"
45
TEMP=`getopt --options vhpF:d:t:l:s:L:n:e:c:x:fS \
46
--longoptions version,help,password,passfile:,dir:,type:,length:,subtype:,sublength:,name:,email:,comment:,expire:,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 \
47
41
--name "$0" -- "$@"`
50
basename="`basename "$0"`"
44
basename="`basename $0`"
52
46
Usage: $basename [ -v | --version ]
53
47
$basename [ -h | --help ]
55
49
$basename [ OPTIONS ]
56
50
Encrypted password creation:
57
51
$basename { -p | --password } [ --name NAME ] [ --dir DIR]
58
$basename { -F | --passfile } FILE [ --name NAME ] [ --dir DIR]
60
53
Key creation options:
61
54
-v, --version Show program's version number and exit
62
55
-h, --help Show this help message and exit
63
56
-d DIR, --dir DIR Target directory for key files
64
-t TYPE, --type TYPE Key type. Default is RSA.
57
-t TYPE, --type TYPE Key type. Default is DSA.
65
58
-l BITS, --length BITS
66
Key length in bits. Default is 4096.
59
Key length in bits. Default is 2048.
67
60
-s TYPE, --subtype TYPE
68
Subkey type. Default is RSA.
61
Subkey type. Default is ELG-E.
69
62
-L BITS, --sublength BITS
70
Subkey length in bits. Default is 4096.
63
Subkey length in bits. Default is 2048.
71
64
-n NAME, --name NAME Name of key. Default is the FQDN.
72
65
-e ADDRESS, --email ADDRESS
73
66
Email address of key. Default is empty.
74
67
-c TEXT, --comment TEXT
75
Comment field for key. The default is empty.
68
Comment field for key. The default value is
76
70
-x TIME, --expire TIME
77
71
Key expire time. Default is no expiration.
78
72
See gpg(1) for syntax.
79
-f, --force Force overwriting old key files.
73
-f, --force Force overwriting old keys.
81
75
Password creation options:
82
-p, --password Create an encrypted password using the key in
83
the key directory. All options other than
84
--dir and --name are ignored.
85
-F FILE, --passfile FILE
86
Encrypt a password from FILE using the key in
87
the key directory. All options other than
88
--dir and --name are ignored.
89
-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.
96
85
-p|--password) mode=password; shift;;
97
-F|--passfile) mode=password; PASSFILE="$2"; shift 2;;
98
86
-d|--dir) KEYDIR="$2"; shift 2;;
99
87
-t|--type) KEYTYPE="$2"; shift 2;;
100
88
-s|--subtype) SUBKEYTYPE="$2"; shift 2;;
105
93
-c|--comment) KEYCOMMENT="$2"; shift 2;;
106
94
-x|--expire) KEYEXPIRE="$2"; shift 2;;
107
95
-f|--force) FORCE=yes; shift;;
108
-S|--no-ssh) SSH=no; shift;;
109
96
-v|--version) echo "$0 $VERSION"; exit;;
110
97
-h|--help) help; exit;;
111
98
--) shift; break;;
161
148
[Nn][Oo]|[Ff][Aa][Ll][Ss][Ee]|*) FORCE=0;;
164
if [ \( -e "$SECKEYFILE" -o -e "$PUBKEYFILE" \) \
165
-a "$FORCE" -eq 0 ]; then
151
if { [ -e "$SECKEYFILE" ] || [ -e "$PUBKEYFILE" ]; } \
152
&& [ "$FORCE" -eq 0 ]; then
166
153
echo "Refusing to overwrite old key files; use --force" >&2
193
180
test -n \"$SECFILE\" && shred --remove \"$SECFILE\"; \
194
shred --remove \"$RINGDIR\"/sec* 2>/dev/null;
181
shred --remove \"$RINGDIR\"/sec*;
195
182
test -n \"$BATCHFILE\" && rm --force \"$BATCHFILE\"; \
196
183
rm --recursive --force \"$RINGDIR\";
197
tty --quiet && stty echo; \
204
189
if [ "$mode" = keygen ]; then
226
Note: Due to entropy requirements, key generation could take
227
anything from a few minutes to SEVERAL HOURS. Please be
228
patient and/or supply the system with more entropy if needed.
234
# Make sure trustdb.gpg exists;
235
# this is a workaround for Debian bug #737128
236
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
237
--homedir "$RINGDIR" \
238
--import-ownertrust < /dev/null
239
209
# Generate a new key in the key rings
240
210
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
241
211
--homedir "$RINGDIR" --trust-model always \
242
212
--gen-key "$BATCHFILE"
243
213
rm --force "$BATCHFILE"
250
215
# Backup any old key files
251
216
if cp --backup=numbered --force "$SECKEYFILE" "$SECKEYFILE" \
252
217
2>/dev/null; then
266
231
FILECOMMENT="$FILECOMMENT <$KEYEMAIL>"
269
# Export key from key rings to key files
234
# Export keys from key rings to key files
270
235
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
271
236
--homedir "$RINGDIR" --armor --export-options export-minimal \
272
237
--comment "$FILECOMMENT" --output "$SECKEYFILE" \
279
244
if [ "$mode" = password ]; then
283
[Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]) SSH=1;;
284
[Nn][Oo]|[Ff][Aa][Ll][Ss][Ee]|*) SSH=0;;
287
if [ $SSH -eq 1 ]; then
288
for ssh_keytype in ecdsa-sha2-nistp256 ed25519 rsa; do
290
ssh_fingerprint="`ssh-keyscan -t $ssh_keytype localhost 2>/dev/null`"
292
if [ $? -ne 0 ]; then
296
if [ -n "$ssh_fingerprint" ]; then
297
ssh_fingerprint="${ssh_fingerprint#localhost }"
303
# Import key into temporary key rings
245
# Import keys into temporary key rings
304
246
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
305
247
--homedir "$RINGDIR" --trust-model always --armor \
306
248
--import "$SECKEYFILE"
311
253
# Get fingerprint of key
312
254
FINGERPRINT="`gpg --quiet --batch --no-tty --no-options \
313
--enable-dsa2 --homedir "$RINGDIR" --trust-model always \
255
--enable-dsa2 --homedir \"$RINGDIR\" --trust-model always \
314
256
--fingerprint --with-colons \
316
--expression='/^fpr:/{s/^fpr:.*:\\([0-9A-Z]*\\):\$/\\1/p;q}'`"
257
| sed -n -e '/^fpr:/{s/^fpr:.*:\\([0-9A-Z]*\\):\$/\\1/p;q}'`"
318
259
test -n "$FINGERPRINT"
320
261
FILECOMMENT="Encrypted password for a Mandos client"
322
while [ ! -s "$SECFILE" ]; do
323
if [ -n "$PASSFILE" ]; then
326
tty --quiet && stty -echo
327
echo -n "Enter passphrase: " >&2
329
tty --quiet && echo >&2
330
echo -n "Repeat passphrase: " >&2
336
if [ "$first" != "$second" ]; then
337
echo "Passphrase mismatch" >&2
338
touch "$RINGDIR"/mismatch
342
fi | gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
343
--homedir "$RINGDIR" --trust-model always --armor \
344
--encrypt --sign --recipient "$FINGERPRINT" --comment \
345
"$FILECOMMENT" > "$SECFILE"
346
if [ -e "$RINGDIR"/mismatch ]; then
347
rm --force "$RINGDIR"/mismatch
264
echo -n "Enter passphrase: " >&2
266
| gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
267
--homedir "$RINGDIR" --trust-model always --armor --encrypt \
268
--recipient "$FINGERPRINT" --comment "$FILECOMMENT" \
359
276
fingerprint = $FINGERPRINT
362
sed --quiet --expression='
363
280
/^-----BEGIN PGP MESSAGE-----$/,/^-----END PGP MESSAGE-----$/{
365
282
# Remove 24-bit Radix-64 checksum
added
removed
mandos-keygen
