3
3
# Mandos key generator - create a new OpenPGP key for a Mandos client
5
# Copyright © 2008-2013 Teddy Hogeborn
6
# Copyright © 2008-2013 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`"
33
32
KEYCOMMENT="Mandos client key"
36
35
KEYCOMMENT_ORIG="$KEYCOMMENT"
39
if [ ! -d "$KEYDIR" ]; then
40
KEYDIR="/etc/mandos/keys"
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 \
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 \
46
41
--name "$0" -- "$@"`
54
49
$basename [ OPTIONS ]
55
50
Encrypted password creation:
56
51
$basename { -p | --password } [ --name NAME ] [ --dir DIR]
57
$basename { -F | --passfile } FILE [ --name NAME ] [ --dir DIR]
59
53
Key creation options:
60
54
-v, --version Show program's version number and exit
61
55
-h, --help Show this help message and exit
62
56
-d DIR, --dir DIR Target directory for key files
63
-t TYPE, --type TYPE Key type. Default is RSA.
57
-t TYPE, --type TYPE Key type. Default is DSA.
64
58
-l BITS, --length BITS
65
Key length in bits. Default is 4096.
59
Key length in bits. Default is 2048.
66
60
-s TYPE, --subtype TYPE
67
Subkey type. Default is RSA.
61
Subkey type. Default is ELG-E.
68
62
-L BITS, --sublength BITS
69
Subkey length in bits. Default is 4096.
63
Subkey length in bits. Default is 2048.
70
64
-n NAME, --name NAME Name of key. Default is the FQDN.
71
65
-e ADDRESS, --email ADDRESS
72
66
Email address of key. Default is empty.
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
76
-p, --password Create an encrypted password using the keys in
87
77
the key directory. All options other than
88
78
--dir and --name are ignored.
95
85
-p|--password) mode=password; shift;;
96
-F|--passfile) mode=password; PASSFILE="$2"; shift 2;;
97
86
-d|--dir) KEYDIR="$2"; shift 2;;
98
87
-t|--type) KEYTYPE="$2"; shift 2;;
99
88
-s|--subtype) SUBKEYTYPE="$2"; shift 2;;
159
148
[Nn][Oo]|[Ff][Aa][Ll][Ss][Ee]|*) FORCE=0;;
162
if [ \( -e "$SECKEYFILE" -o -e "$PUBKEYFILE" \) \
163
-a "$FORCE" -eq 0 ]; then
151
if { [ -e "$SECKEYFILE" ] || [ -e "$PUBKEYFILE" ]; } \
152
&& [ "$FORCE" -eq 0 ]; then
164
153
echo "Refusing to overwrite old key files; use --force" >&2
192
181
shred --remove \"$RINGDIR\"/sec*;
193
182
test -n \"$BATCHFILE\" && rm --force \"$BATCHFILE\"; \
194
183
rm --recursive --force \"$RINGDIR\";
195
tty --quiet && stty echo; \
202
189
if [ "$mode" = keygen ]; then
204
191
cat >"$BATCHFILE" <<-EOF
205
192
Key-Type: $KEYTYPE
206
193
Key-Length: $KEYLENGTH
194
#Key-Usage: encrypt,sign,auth
208
195
Subkey-Type: $SUBKEYTYPE
209
196
Subkey-Length: $SUBKEYLENGTH
210
Subkey-Usage: encrypt
197
#Subkey-Usage: encrypt,sign,auth
211
198
Name-Real: $KEYNAME
224
Note: Due to entropy requirements, key generation could take
225
anything from a few minutes to SEVERAL HOURS. Please be
226
patient and/or supply the system with more entropy if needed.
232
209
# Generate a new key in the key rings
233
210
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
234
211
--homedir "$RINGDIR" --trust-model always \
235
212
--gen-key "$BATCHFILE"
236
213
rm --force "$BATCHFILE"
243
215
# Backup any old key files
244
216
if cp --backup=numbered --force "$SECKEYFILE" "$SECKEYFILE" \
245
217
2>/dev/null; then
259
231
FILECOMMENT="$FILECOMMENT <$KEYEMAIL>"
262
# Export key from key rings to key files
234
# Export keys from key rings to key files
263
235
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
264
236
--homedir "$RINGDIR" --armor --export-options export-minimal \
265
237
--comment "$FILECOMMENT" --output "$SECKEYFILE" \
272
244
if [ "$mode" = password ]; then
273
# Import key into temporary key rings
245
# Import keys into temporary key rings
274
246
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
275
247
--homedir "$RINGDIR" --trust-model always --armor \
276
248
--import "$SECKEYFILE"
282
254
FINGERPRINT="`gpg --quiet --batch --no-tty --no-options \
283
255
--enable-dsa2 --homedir \"$RINGDIR\" --trust-model always \
284
256
--fingerprint --with-colons \
286
--expression='/^fpr:/{s/^fpr:.*:\\([0-9A-Z]*\\):\$/\\1/p;q}'`"
257
| sed -n -e '/^fpr:/{s/^fpr:.*:\\([0-9A-Z]*\\):\$/\\1/p;q}'`"
288
259
test -n "$FINGERPRINT"
290
261
FILECOMMENT="Encrypted password for a Mandos client"
292
while [ ! -s "$SECFILE" ]; do
293
if [ -n "$PASSFILE" ]; then
296
tty --quiet && stty -echo
297
echo -n "Enter passphrase: "
299
tty --quiet && echo >&2
300
echo -n "Repeat passphrase: "
306
if [ "$first" != "$second" ]; then
307
echo "Passphrase mismatch" >&2
308
touch "$RINGDIR"/mismatch
312
fi | gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
313
--homedir "$RINGDIR" --trust-model always --armor \
314
--encrypt --sign --recipient "$FINGERPRINT" --comment \
315
"$FILECOMMENT" > "$SECFILE"
316
if [ -e "$RINGDIR"/mismatch ]; then
317
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" \
329
276
fingerprint = $FINGERPRINT
332
sed --quiet --expression='
333
280
/^-----BEGIN PGP MESSAGE-----$/,/^-----END PGP MESSAGE-----$/{
335
282
# Remove 24-bit Radix-64 checksum