20
20
# Contact the authors at <mandos@fukt.bsnet.se>.
25
23
KEYDIR="/etc/mandos"
30
26
KEYNAME="`hostname --fqdn`"
32
28
KEYCOMMENT="Mandos client key"
35
31
KEYCOMMENT_ORIG="$KEYCOMMENT"
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 \
34
TEMP=`getopt --options d:t:l:n:e:c:x:f \
35
--longoptions dir:,type:,length:,name:,email:,comment:,expire:,force \
41
36
--name "$0" -- "$@"`
44
basename="`basename $0`"
46
Usage: $basename [ -v | --version ]
47
$basename [ -h | --help ]
50
Encrypted password creation:
51
$basename { -p | --password } [ --name NAME ] [ --dir DIR]
54
-v, --version Show program's version number and exit
55
-h, --help Show this help message and exit
56
-d DIR, --dir DIR Target directory for key files
57
-t TYPE, --type TYPE Key type. Default is DSA.
58
-l BITS, --length BITS
59
Key length in bits. Default is 1024.
60
-s TYPE, --subtype TYPE
61
Subkey type. Default is ELG-E.
62
-L BITS, --sublength BITS
63
Subkey length in bits. Default is 2048.
64
-n NAME, --name NAME Name of key. Default is the FQDN.
65
-e ADDRESS, --email ADDRESS
66
Email address of key. Default is empty.
67
-c COMMENT, --comment COMMENT
68
Comment field for key. The default value is
70
-x TIME, --expire TIME
71
Key expire time. Default is no expiration.
72
See gpg(1) for syntax.
73
-f, --force Force overwriting old keys.
75
Password creation options:
76
-p, --password Create an encrypted password using the keys in
77
the key directory. All options other than
78
--keydir and --name are ignored.
82
38
eval set -- "$TEMP"
85
-p|--password) mode=password; shift;;
86
41
-d|--dir) KEYDIR="$2"; shift 2;;
87
42
-t|--type) KEYTYPE="$2"; shift 2;;
88
-s|--subtype) SUBKEYTYPE="$2"; shift 2;;
89
43
-l|--length) KEYLENGTH="$2"; shift 2;;
90
-L|--sublength) SUBKEYLENGTH="$2"; shift 2;;
91
44
-n|--name) KEYNAME="$2"; shift 2;;
92
45
-e|--email) KEYEMAIL="$2"; shift 2;;
93
46
-c|--comment) KEYCOMMENT="$2"; shift 2;;
94
-x|--expire) KEYEXPIRE="$2"; shift 2;;
47
-x|--expire) KEYCOMMENT="$2"; shift 2;;
95
48
-f|--force) FORCE=yes; shift;;
96
-v|--version) echo "$0 $VERSION"; exit;;
97
-h|--help) help; exit;;
99
50
*) echo "Internal error" >&2; exit 1;;
120
if [ "$mode" = password -a -e "$KEYDIR/trustdb.gpg.lock" ]; then
121
echo "Key directory has locked trustdb; aborting." >&2
125
if [ "$mode" = keygen ]; then
126
if [ -z "$KEYTYPE" ]; then
127
echo "Empty key type" >&2
131
if [ -z "$KEYNAME" ]; then
132
echo "Empty key name" >&2
136
if [ -z "$KEYLENGTH" ] || [ "$KEYLENGTH" -lt 512 ]; then
137
echo "Invalid key length" >&2
141
if [ -z "$KEYEXPIRE" ]; then
142
echo "Empty key expiration" >&2
146
# Make FORCE be 0 or 1
148
[Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]) FORCE=1;;
149
[Nn][Oo]|[Ff][Aa][Ll][Ss][Ee]|*) FORCE=0;;
152
if { [ -e "$SECKEYFILE" ] || [ -e "$PUBKEYFILE" ]; } \
153
&& [ "$FORCE" -eq 0 ]; then
154
echo "Refusing to overwrite old key files; use --force" >&2
158
# Set lines for GnuPG batch file
159
if [ -n "$KEYCOMMENT" ]; then
160
KEYCOMMENTLINE="Name-Comment: $KEYCOMMENT"
162
if [ -n "$KEYEMAIL" ]; then
163
KEYEMAILLINE="Name-Email: $KEYEMAIL"
166
# Create temporary gpg batch file
167
BATCHFILE="`mktemp -t mandos-gpg-batch.XXXXXXXXXX`"
170
if [ "$mode" = password ]; then
171
# Create temporary encrypted password file
172
SECFILE="`mktemp -t mandos-gpg-secfile.XXXXXXXXXX`"
175
# Create temporary key rings
71
if [ -z "$KEYTYPE" ]; then
72
echo "Empty key type" >&2
76
if [ -z "$KEYNAME" ]; then
77
echo "Empty key name" >&2
81
if [ -z "$KEYLENGTH" ] || [ "$KEYLENGTH" -lt 512 ]; then
82
echo "Invalid key length" >&2
86
if [ -z "$KEYEXPIRE" ]; then
87
echo "Empty key expiration" >&2
91
# Make FORCE be 0 or 1
93
[Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]) FORCE=1;;
94
[Nn][Oo]|[Ff][Aa][Ll][Ss][Ee]|*) FORCE=0;;
97
if { [ -e "$SECKEYFILE" ] || [ -e "$PUBKEYFILE" ]; } \
98
&& [ "$FORCE" -eq 0 ]; then
99
echo "Refusing to overwrite old key files; use --force" >&2
103
# Set lines for GPG batch file
104
if [ -n "$KEYCOMMENT" ]; then
105
KEYCOMMENTLINE="Name-Comment: $KEYCOMMENT"
107
if [ -n "$KEYEMAIL" ]; then
108
KEYEMAILLINE="Name-Email: $KEYEMAIL"
112
BATCHFILE="`mktemp -t mandos-gpg-batch.XXXXXXXXXX`"
176
113
SECRING="`mktemp -t mandos-gpg-secring.XXXXXXXXXX`"
177
114
PUBRING="`mktemp -t mandos-gpg-pubring.XXXXXXXXXX`"
179
if [ "$mode" = password ]; then
180
# If a trustdb.gpg file does not already exist, schedule it for
181
# deletion when we are done.
182
if ! [ -e "$KEYDIR/trustdb.gpg" ]; then
183
TRUSTDB="$KEYDIR/trustdb.gpg"
116
trap "rm --force $PUBRING $BATCHFILE; shred --remove $SECRING" EXIT
187
# Remove temporary files on exit
190
rm --force $PUBRING ${PUBRING}~ $BATCHFILE $TRUSTDB; \
191
shred --remove $SECRING $SECFILE; \
118
# Create batch file for GPG
119
cat >"$BATCHFILE" <<EOF
121
Key-Length: $KEYLENGTH
122
#Key-Usage: encrypt,sign,auth
126
Expire-Date: $KEYEXPIRE
197
if [ "$mode" = keygen ]; then
198
# Create batch file for GnuPG
199
cat >"$BATCHFILE" <<-EOF
201
Key-Length: $KEYLENGTH
202
#Key-Usage: encrypt,sign,auth
203
Subkey-Type: $SUBKEYTYPE
204
Subkey-Length: $SUBKEYLENGTH
205
#Subkey-Usage: encrypt,sign,auth
209
Expire-Date: $KEYEXPIRE
210
#Preferences: <string>
217
# Generate a new key in the key rings
218
gpg --no-random-seed-file --quiet --batch --no-tty \
219
--no-default-keyring --no-options --enable-dsa2 \
220
--secret-keyring "$SECRING" --keyring "$PUBRING" \
221
--gen-key "$BATCHFILE"
222
rm --force "$BATCHFILE"
224
# Backup any old key files
225
if cp --backup=numbered --force "$SECKEYFILE" "$SECKEYFILE" \
227
shred --remove "$SECKEYFILE"
229
if cp --backup=numbered --force "$PUBKEYFILE" "$PUBKEYFILE" \
231
rm --force "$PUBKEYFILE"
234
FILECOMMENT="Mandos client key for $KEYNAME"
235
if [ "$KEYCOMMENT" != "$KEYCOMMENT_ORIG" ]; then
236
FILECOMMENT="$FILECOMMENT ($KEYCOMMENT)"
239
if [ -n "$KEYEMAIL" ]; then
240
FILECOMMENT="$FILECOMMENT <$KEYEMAIL>"
243
# Export keys from key rings to key files
244
gpg --no-random-seed-file --quiet --batch --no-tty --armor \
245
--no-default-keyring --no-options --enable-dsa2 \
246
--secret-keyring "$SECRING" --keyring "$PUBRING" \
247
--export-options export-minimal --comment "$FILECOMMENT" \
248
--output "$SECKEYFILE" --export-secret-keys
249
gpg --no-random-seed-file --quiet --batch --no-tty --armor \
250
--no-default-keyring --no-options --enable-dsa2 \
251
--secret-keyring "$SECRING" --keyring "$PUBRING" \
252
--export-options export-minimal --comment "$FILECOMMENT" \
253
--output "$PUBKEYFILE" --export
256
if [ "$mode" = password ]; then
257
# Import keys into temporary key rings
258
gpg --no-random-seed-file --quiet --batch --no-tty --armor \
259
--no-default-keyring --no-options --enable-dsa2 \
260
--homedir "$KEYDIR" --no-permission-warning \
261
--secret-keyring "$SECRING" --keyring "$PUBRING" \
262
--trust-model always --import "$SECKEYFILE"
263
gpg --no-random-seed-file --quiet --batch --no-tty --armor \
264
--no-default-keyring --no-options --enable-dsa2 \
265
--homedir "$KEYDIR" --no-permission-warning \
266
--secret-keyring "$SECRING" --keyring "$PUBRING" \
267
--trust-model always --import "$PUBKEYFILE"
269
# Get fingerprint of key
270
FINGERPRINT="`gpg --no-random-seed-file --quiet --batch --no-tty \
271
--armor --no-default-keyring --no-options --enable-dsa2 \
272
--homedir \"$KEYDIR\" --no-permission-warning \
273
--secret-keyring \"$SECRING\" --keyring \"$PUBRING\" \
274
--trust-model always --fingerprint --with-colons \
275
| sed -n -e '/^fpr:/{s/^fpr:.*:\\([0-9A-Z]*\\):\$/\\1/p;q}'`"
277
test -n "$FINGERPRINT"
279
FILECOMMENT="Encrypted password for a Mandos client"
282
echo -n "Enter passphrase: " >&2
284
| gpg --no-random-seed-file --batch --no-tty --armor \
285
--no-default-keyring --no-options --enable-dsa2 \
286
--homedir "$KEYDIR" --no-permission-warning \
287
--secret-keyring "$SECRING" --keyring "$PUBRING" \
288
--trust-model always --encrypt --recipient "$FINGERPRINT" \
289
--comment "$FILECOMMENT" \
297
fingerprint = $FINGERPRINT
301
/^-----BEGIN PGP MESSAGE-----$/,/^-----END PGP MESSAGE-----$/{
312
# Remove the password file, if any
313
if [ -n "$SECFILE" ]; then
314
shred --remove "$SECFILE"
316
# Remove the key rings
317
shred --remove "$SECRING"
318
rm --force "$PUBRING" "${PUBRING}~"
319
# Remove the trustdb, if one did not exist when we started
320
if [ -n "$TRUSTDB" ]; then
321
rm --force "$TRUSTDB"
133
gpg --no-random-seed-file --quiet --batch --no-tty \
134
--no-default-keyring --batch --secret-keyring "$SECRING" \
135
--keyring "$PUBRING" --gen-key "$BATCHFILE"
136
rm --force "$BATCHFILE"
138
if cp --backup=numbered --force "$SECKEYFILE" "$SECKEYFILE" \
140
shred --remove "$SECKEYFILE"
142
if cp --backup=numbered --force "$PUBKEYFILE" "$PUBKEYFILE" \
144
rm --force "$PUBKEYFILE"
147
FILECOMMENT="Mandos client key for $KEYNAME"
148
if [ "$KEYCOMMENT" != "$KEYCOMMENT_ORIG" ]; then
149
FILECOMMENT="$FILECOMMENT ($KEYCOMMENT)"
152
if [ -n "$KEYEMAIL" ]; then
153
FILECOMMENT="$FILECOMMENT <$KEYEMAIL>"
156
gpg --no-random-seed-file --quiet --batch --no-tty --armor \
157
--no-default-keyring --secret-keyring "$SECRING" \
158
--keyring "$PUBRING" --export-options export-minimal \
159
--comment "$FILECOMMENT" --output "$SECKEYFILE" \
161
gpg --no-random-seed-file --quiet --batch --no-tty --armor \
162
--no-default-keyring --secret-keyring "$SECRING" \
163
--keyring "$PUBRING" --export-options export-minimal \
164
--comment "$FILECOMMENT" --output "$PUBKEYFILE" \