To get this branch, use:
bzr branch
http://bzr.recompile.se/loggerhead/mandos/release
« back to all changes in this revision
Viewing changes to mandos-keygen
- browse files at revision 24.1.19
- compare with another revision
- download diff
- download tarball
- view history from revision 24.1.19
- Committer: Björn Påhlsson
- Date: 2008-08-04 21:27:53 UTC
- mfrom: (45 mandos)
- mto: (237.7.1 mandos) (24.1.154 mandos)
- mto: This revision was merged to the branch mainline in revision 46.
- Revision ID: belorn@braxen-20080804212753-rdghixnyfxb7w3u5
merge
- files removed:
- .bzr-builddeb
- debian
- files renamed:
- plugin-runner.c => plugbasedclient.c
- plugins.d/mandos-client.c => plugins.d/mandosclient.c
- plugins.d/password-prompt.c => plugins.d/passprompt.c
- mandos.conf => server.conf
- mandos => server.py
- files modified:
- Makefile
added
removed
mandos-keygen
1
#!/bin/sh -e
2
#
3
# Mandos key generator - create a new OpenPGP key for a Mandos client
4
#
5
# Copyright © 2007-2008 Teddy Hogeborn & Björn Påhlsson
6
#
7
# This program is free software: you can redistribute it and/or modify
8
# it under the terms of the GNU General Public License as published by
9
# the Free Software Foundation, either version 3 of the License, or
10
# (at your option) any later version.
11
#
12
# This program is distributed in the hope that it will be useful,
13
# but WITHOUT ANY WARRANTY; without even the implied warranty of
14
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15
# GNU General Public License for more details.
16
#
17
# You should have received a copy of the GNU General Public License
18
# along with this program. If not, see <http://www.gnu.org/licenses/>.
19
#
20
# Contact the authors at <mandos@fukt.bsnet.se>.
21
#
22
23
VERSION="1.0"
24
25
KEYDIR="/etc/keys/mandos"
26
KEYTYPE=DSA
27
KEYLENGTH=2048
28
SUBKEYTYPE=ELG-E
29
SUBKEYLENGTH=2048
30
KEYNAME="`hostname --fqdn 2>/dev/null || hostname`"
31
KEYEMAIL=""
32
KEYCOMMENT="Mandos client key"
33
KEYEXPIRE=0
34
FORCE=no
35
KEYCOMMENT_ORIG="$KEYCOMMENT"
36
mode=keygen
37
38
if [ ! -d "$KEYDIR" ]; then
39
KEYDIR="/etc/mandos/keys"
40
fi
41
42
# Parse options
43
TEMP=`getopt --options vhd:t:l:n:e:c:x:f \
44
--longoptions version,help,password,dir:,type:,length:,subtype:,sublength:,name:,email:,comment:,expire:,force \
45
--name "$0" -- "$@"`
46
47
help(){
48
basename="`basename $0`"
49
cat <<EOF
50
Usage: $basename [ -v | --version ]
51
$basename [ -h | --help ]
52
Key creation:
53
$basename [ OPTIONS ]
54
Encrypted password creation:
55
$basename { -p | --password } [ --name NAME ] [ --dir DIR]
56
57
Key creation options:
58
-v, --version Show program's version number and exit
59
-h, --help Show this help message and exit
60
-d DIR, --dir DIR Target directory for key files
61
-t TYPE, --type TYPE Key type. Default is DSA.
62
-l BITS, --length BITS
63
Key length in bits. Default is 2048.
64
-s TYPE, --subtype TYPE
65
Subkey type. Default is ELG-E.
66
-L BITS, --sublength BITS
67
Subkey length in bits. Default is 2048.
68
-n NAME, --name NAME Name of key. Default is the FQDN.
69
-e ADDRESS, --email ADDRESS
70
Email address of key. Default is empty.
71
-c TEXT, --comment TEXT
72
Comment field for key. The default value is
73
"Mandos client key".
74
-x TIME, --expire TIME
75
Key expire time. Default is no expiration.
76
See gpg(1) for syntax.
77
-f, --force Force overwriting old keys.
78
79
Password creation options:
80
-p, --password Create an encrypted password using the keys in
81
the key directory. All options other than
82
--dir and --name are ignored.
83
EOF
84
}
85
86
eval set -- "$TEMP"
87
while :; do
88
case "$1" in
89
-p|--password) mode=password; shift;;
90
-d|--dir) KEYDIR="$2"; shift 2;;
91
-t|--type) KEYTYPE="$2"; shift 2;;
92
-s|--subtype) SUBKEYTYPE="$2"; shift 2;;
93
-l|--length) KEYLENGTH="$2"; shift 2;;
94
-L|--sublength) SUBKEYLENGTH="$2"; shift 2;;
95
-n|--name) KEYNAME="$2"; shift 2;;
96
-e|--email) KEYEMAIL="$2"; shift 2;;
97
-c|--comment) KEYCOMMENT="$2"; shift 2;;
98
-x|--expire) KEYEXPIRE="$2"; shift 2;;
99
-f|--force) FORCE=yes; shift;;
100
-v|--version) echo "$0 $VERSION"; exit;;
101
-h|--help) help; exit;;
102
--) shift; break;;
103
*) echo "Internal error" >&2; exit 1;;
104
esac
105
done
106
if [ "$#" -gt 0 ]; then
107
echo "Unknown arguments: '$@'" >&2
108
exit 1
109
fi
110
111
SECKEYFILE="$KEYDIR/seckey.txt"
112
PUBKEYFILE="$KEYDIR/pubkey.txt"
113
114
# Check for some invalid values
115
if [ ! -d "$KEYDIR" ]; then
116
echo "$KEYDIR not a directory" >&2
117
exit 1
118
fi
119
if [ ! -r "$KEYDIR" ]; then
120
echo "Directory $KEYDIR not readable" >&2
121
exit 1
122
fi
123
124
if [ "$mode" = keygen ]; then
125
if [ ! -w "$KEYDIR" ]; then
126
echo "Directory $KEYDIR not writeable" >&2
127
exit 1
128
fi
129
if [ -z "$KEYTYPE" ]; then
130
echo "Empty key type" >&2
131
exit 1
132
fi
133
134
if [ -z "$KEYNAME" ]; then
135
echo "Empty key name" >&2
136
exit 1
137
fi
138
139
if [ -z "$KEYLENGTH" ] || [ "$KEYLENGTH" -lt 512 ]; then
140
echo "Invalid key length" >&2
141
exit 1
142
fi
143
144
if [ -z "$KEYEXPIRE" ]; then
145
echo "Empty key expiration" >&2
146
exit 1
147
fi
148
149
# Make FORCE be 0 or 1
150
case "$FORCE" in
151
[Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]) FORCE=1;;
152
[Nn][Oo]|[Ff][Aa][Ll][Ss][Ee]|*) FORCE=0;;
153
esac
154
155
if [ \( -e "$SECKEYFILE" -o -e "$PUBKEYFILE" \) \
156
-a "$FORCE" -eq 0 ]; then
157
echo "Refusing to overwrite old key files; use --force" >&2
158
exit 1
159
fi
160
161
# Set lines for GnuPG batch file
162
if [ -n "$KEYCOMMENT" ]; then
163
KEYCOMMENTLINE="Name-Comment: $KEYCOMMENT"
164
fi
165
if [ -n "$KEYEMAIL" ]; then
166
KEYEMAILLINE="Name-Email: $KEYEMAIL"
167
fi
168
169
# Create temporary gpg batch file
170
BATCHFILE="`mktemp -t mandos-keygen-batch.XXXXXXXXXX`"
171
fi
172
173
if [ "$mode" = password ]; then
174
# Create temporary encrypted password file
175
SECFILE="`mktemp -t mandos-keygen-secfile.XXXXXXXXXX`"
176
fi
177
178
# Create temporary key ring directory
179
RINGDIR="`mktemp -d -t mandos-keygen-keyrings.XXXXXXXXXX`"
180
181
# Remove temporary files on exit
182
trap "
183
set +e; \
184
test -n \"$SECFILE\" && shred --remove \"$SECFILE\"; \
185
shred --remove \"$RINGDIR\"/sec*;
186
test -n \"$BATCHFILE\" && rm --force \"$BATCHFILE\"; \
187
rm --recursive --force \"$RINGDIR\";
188
stty echo; \
189
" EXIT
190
191
umask 077
192
193
if [ "$mode" = keygen ]; then
194
# Create batch file for GnuPG
195
cat >"$BATCHFILE" <<-EOF
196
Key-Type: $KEYTYPE
197
Key-Length: $KEYLENGTH
198
#Key-Usage: encrypt,sign,auth
199
Subkey-Type: $SUBKEYTYPE
200
Subkey-Length: $SUBKEYLENGTH
201
#Subkey-Usage: encrypt,sign,auth
202
Name-Real: $KEYNAME
203
$KEYCOMMENTLINE
204
$KEYEMAILLINE
205
Expire-Date: $KEYEXPIRE
206
#Preferences: <string>
207
#Handle: <no-spaces>
208
#%pubring pubring.gpg
209
#%secring secring.gpg
210
%commit
211
EOF
212
213
# Generate a new key in the key rings
214
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
215
--homedir "$RINGDIR" --trust-model always \
216
--gen-key "$BATCHFILE"
217
rm --force "$BATCHFILE"
218
219
# Backup any old key files
220
if cp --backup=numbered --force "$SECKEYFILE" "$SECKEYFILE" \
221
2>/dev/null; then
222
shred --remove "$SECKEYFILE"
223
fi
224
if cp --backup=numbered --force "$PUBKEYFILE" "$PUBKEYFILE" \
225
2>/dev/null; then
226
rm --force "$PUBKEYFILE"
227
fi
228
229
FILECOMMENT="Mandos client key for $KEYNAME"
230
if [ "$KEYCOMMENT" != "$KEYCOMMENT_ORIG" ]; then
231
FILECOMMENT="$FILECOMMENT ($KEYCOMMENT)"
232
fi
233
234
if [ -n "$KEYEMAIL" ]; then
235
FILECOMMENT="$FILECOMMENT <$KEYEMAIL>"
236
fi
237
238
# Export keys from key rings to key files
239
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
240
--homedir "$RINGDIR" --armor --export-options export-minimal \
241
--comment "$FILECOMMENT" --output "$SECKEYFILE" \
242
--export-secret-keys
243
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
244
--homedir "$RINGDIR" --armor --export-options export-minimal \
245
--comment "$FILECOMMENT" --output "$PUBKEYFILE" --export
246
fi
247
248
if [ "$mode" = password ]; then
249
# Import keys into temporary key rings
250
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
251
--homedir "$RINGDIR" --trust-model always --armor \
252
--import "$SECKEYFILE"
253
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
254
--homedir "$RINGDIR" --trust-model always --armor \
255
--import "$PUBKEYFILE"
256
257
# Get fingerprint of key
258
FINGERPRINT="`gpg --quiet --batch --no-tty --no-options \
259
--enable-dsa2 --homedir \"$RINGDIR\" --trust-model always \
260
--fingerprint --with-colons \
261
| sed --quiet \
262
--expression='/^fpr:/{s/^fpr:.*:\\([0-9A-Z]*\\):\$/\\1/p;q}'`"
263
264
test -n "$FINGERPRINT"
265
266
FILECOMMENT="Encrypted password for a Mandos client"
267
268
stty -echo
269
echo -n "Enter passphrase: " >&2
270
head --lines=1 | tr --delete '\n' \
271
| gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
272
--homedir "$RINGDIR" --trust-model always --armor --encrypt \
273
--recipient "$FINGERPRINT" --comment "$FILECOMMENT" \
274
> "$SECFILE"
275
echo >&2
276
stty echo
277
278
cat <<-EOF
279
[$KEYNAME]
280
host = $KEYNAME
281
fingerprint = $FINGERPRINT
282
secret =
283
EOF
284
sed --quiet --expression='
285
/^-----BEGIN PGP MESSAGE-----$/,/^-----END PGP MESSAGE-----$/{
286
/^$/,${
287
# Remove 24-bit Radix-64 checksum
288
s/=....$//
289
# Indent four spaces
290
/^[^-]/s/^/ /p
291
}
292
}' < "$SECFILE"
293
fi
294
295
trap - EXIT
296
297
set +e
298
# Remove the password file, if any
299
if [ -n "$SECFILE" ]; then
300
shred --remove "$SECFILE"
301
fi
302
# Remove the key rings
303
shred --remove "$RINGDIR"/sec*
304
rm --recursive --force "$RINGDIR"
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0