3
3
# Mandos key generator - create a new OpenPGP key for a Mandos client
5
# Copyright © 2007-2008 Teddy Hogeborn & Björn Påhlsson
5
# Copyright © 2008-2015 Teddy Hogeborn
6
# Copyright © 2008-2015 Björn Påhlsson
7
8
# This program is free software: you can redistribute it and/or modify
8
9
# it under the terms of the GNU General Public License as published by
17
18
# You should have received a copy of the GNU General Public License
18
19
# along with this program. If not, see <http://www.gnu.org/licenses/>.
20
# Contact the authors at <mandos@fukt.bsnet.se>.
21
# Contact the authors at <mandos@recompile.se>.
25
26
KEYDIR="/etc/keys/mandos"
30
KEYNAME="`hostname --fqdn`"
31
KEYNAME="`hostname --fqdn 2>/dev/null || hostname`"
32
KEYCOMMENT="Mandos client key"
35
37
KEYCOMMENT_ORIG="$KEYCOMMENT"
40
if [ ! -d "$KEYDIR" ]; then
41
KEYDIR="/etc/mandos/keys"
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 \
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 \
41
47
--name "$0" -- "$@"`
44
basename="`basename $0`"
50
basename="`basename "$0"`"
46
52
Usage: $basename [ -v | --version ]
47
53
$basename [ -h | --help ]
49
55
$basename [ OPTIONS ]
50
56
Encrypted password creation:
51
57
$basename { -p | --password } [ --name NAME ] [ --dir DIR]
58
$basename { -F | --passfile } FILE [ --name NAME ] [ --dir DIR]
53
60
Key creation options:
54
61
-v, --version Show program's version number and exit
55
62
-h, --help Show this help message and exit
56
63
-d DIR, --dir DIR Target directory for key files
57
-t TYPE, --type TYPE Key type. Default is DSA.
64
-t TYPE, --type TYPE Key type. Default is RSA.
58
65
-l BITS, --length BITS
59
Key length in bits. Default is 2048.
66
Key length in bits. Default is 4096.
60
67
-s TYPE, --subtype TYPE
61
Subkey type. Default is ELG-E.
68
Subkey type. Default is RSA.
62
69
-L BITS, --sublength BITS
63
Subkey length in bits. Default is 2048.
70
Subkey length in bits. Default is 4096.
64
71
-n NAME, --name NAME Name of key. Default is the FQDN.
65
72
-e ADDRESS, --email ADDRESS
66
73
Email address of key. Default is empty.
67
74
-c TEXT, --comment TEXT
68
Comment field for key. The default value is
75
Comment field for key. The default is empty.
70
76
-x TIME, --expire TIME
71
77
Key expire time. Default is no expiration.
72
78
See gpg(1) for syntax.
73
-f, --force Force overwriting old keys.
79
-f, --force Force overwriting old key files.
75
81
Password creation options:
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.
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.
85
96
-p|--password) mode=password; shift;;
97
-F|--passfile) mode=password; PASSFILE="$2"; shift 2;;
86
98
-d|--dir) KEYDIR="$2"; shift 2;;
87
99
-t|--type) KEYTYPE="$2"; shift 2;;
88
100
-s|--subtype) SUBKEYTYPE="$2"; shift 2;;
93
105
-c|--comment) KEYCOMMENT="$2"; shift 2;;
94
106
-x|--expire) KEYEXPIRE="$2"; shift 2;;
95
107
-f|--force) FORCE=yes; shift;;
108
-S|--no-ssh) SSH=no; shift;;
96
109
-v|--version) echo "$0 $VERSION"; exit;;
97
110
-h|--help) help; exit;;
98
111
--) shift; break;;
148
161
[Nn][Oo]|[Ff][Aa][Ll][Ss][Ee]|*) FORCE=0;;
151
if { [ -e "$SECKEYFILE" ] || [ -e "$PUBKEYFILE" ]; } \
152
&& [ "$FORCE" -eq 0 ]; then
164
if [ \( -e "$SECKEYFILE" -o -e "$PUBKEYFILE" \) \
165
-a "$FORCE" -eq 0 ]; then
153
166
echo "Refusing to overwrite old key files; use --force" >&2
180
193
test -n \"$SECFILE\" && shred --remove \"$SECFILE\"; \
181
shred --remove \"$RINGDIR\"/sec*;
194
shred --remove \"$RINGDIR\"/sec* 2>/dev/null;
182
195
test -n \"$BATCHFILE\" && rm --force \"$BATCHFILE\"; \
183
196
rm --recursive --force \"$RINGDIR\";
197
tty --quiet && stty echo; \
189
204
if [ "$mode" = keygen ]; then
190
205
# Create batch file for GnuPG
191
206
cat >"$BATCHFILE" <<-EOF
192
207
Key-Type: $KEYTYPE
193
208
Key-Length: $KEYLENGTH
194
#Key-Usage: encrypt,sign,auth
195
210
Subkey-Type: $SUBKEYTYPE
196
211
Subkey-Length: $SUBKEYLENGTH
197
#Subkey-Usage: encrypt,sign,auth
212
Subkey-Usage: encrypt
198
213
Name-Real: $KEYNAME
226
Note: Due to entropy requirements, key generation could take
227
anything from a few minutes to SEVERAL HOURS. Please be
228
patient and/or supply the system with more entropy if needed.
234
# Make sure trustdb.gpg exists;
235
# this is a workaround for Debian bug #737128
236
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
237
--homedir "$RINGDIR" \
238
--import-ownertrust < /dev/null
209
239
# Generate a new key in the key rings
210
240
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
211
241
--homedir "$RINGDIR" --trust-model always \
212
242
--gen-key "$BATCHFILE"
213
243
rm --force "$BATCHFILE"
215
250
# Backup any old key files
216
251
if cp --backup=numbered --force "$SECKEYFILE" "$SECKEYFILE" \
217
252
2>/dev/null; then
231
266
FILECOMMENT="$FILECOMMENT <$KEYEMAIL>"
234
# Export keys from key rings to key files
269
# Export key from key rings to key files
235
270
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
236
271
--homedir "$RINGDIR" --armor --export-options export-minimal \
237
272
--comment "$FILECOMMENT" --output "$SECKEYFILE" \
244
279
if [ "$mode" = password ]; then
245
# Import keys into temporary key rings
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 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="${ssh_fingerprint#localhost }"
303
# Import key into temporary key rings
246
304
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
247
305
--homedir "$RINGDIR" --trust-model always --armor \
248
306
--import "$SECKEYFILE"
253
311
# Get fingerprint of key
254
312
FINGERPRINT="`gpg --quiet --batch --no-tty --no-options \
255
--enable-dsa2 --homedir \"$RINGDIR\" --trust-model always \
313
--enable-dsa2 --homedir "$RINGDIR" --trust-model always \
256
314
--fingerprint --with-colons \
257
| sed -n -e '/^fpr:/{s/^fpr:.*:\\([0-9A-Z]*\\):\$/\\1/p;q}'`"
316
--expression='/^fpr:/{s/^fpr:.*:\\([0-9A-Z]*\\):\$/\\1/p;q}'`"
259
318
test -n "$FINGERPRINT"
261
320
FILECOMMENT="Encrypted password for a Mandos client"
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 "$FILECOMMENT" \
322
while [ ! -s "$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
276
359
fingerprint = $FINGERPRINT
362
sed --quiet --expression='
280
363
/^-----BEGIN PGP MESSAGE-----$/,/^-----END PGP MESSAGE-----$/{
282
365
# Remove 24-bit Radix-64 checksum
added
removed
mandos-keygen
