25
25
KEYDIR="/etc/mandos"
28
30
KEYNAME="`hostname --fqdn`"
30
32
KEYCOMMENT="Mandos client key"
33
35
KEYCOMMENT_ORIG="$KEYCOMMENT"
36
39
TEMP=`getopt --options vhd:t:l:n:e:c:x:f \
37
--longoptions version,help,dir:,type:,length:,name:,email:,comment:,expire:,force \
40
--longoptions version,help,password,dir:,type:,length:,subtype:,sublength:,name:,email:,comment:,expire:,force \
38
41
--name "$0" -- "$@"`
44
basename="`basename $0`"
42
Usage: `basename $0` [options]
46
Usage: $basename [ -v | --version ]
47
$basename [ -h | --help ]
50
Encrypted password creation:
51
$basename { -p | --password } [ --name NAME ] [ --dir DIR]
45
54
-v, --version Show program's version number and exit
46
55
-h, --help Show this help message and exit
47
56
-d DIR, --dir DIR Target directory for key files
48
57
-t TYPE, --type TYPE Key type. Default is DSA.
49
58
-l BITS, --length BITS
50
Key length in bits. Default is 1024.
59
Key length in bits. Default is 2048.
60
-s TYPE, --subtype TYPE
61
Subkey type. Default is ELG-E.
62
-L BITS, --sublength BITS
63
Subkey length in bits. Default is 2048.
51
64
-n NAME, --name NAME Name of key. Default is the FQDN.
52
-e EMAIL, --email EMAIL
65
-e ADDRESS, --email ADDRESS
53
66
Email address of key. Default is empty.
54
-c COMMENT, --comment COMMENT
67
-c TEXT, --comment TEXT
55
68
Comment field for key. The default value is
56
69
"Mandos client key".
57
70
-x TIME, --expire TIME
58
71
Key expire time. Default is no expiration.
59
72
See gpg(1) for syntax.
60
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-f, --force Force overwriting old keys.
75
Password creation options:
76
-p, --password Create an encrypted password using the keys in
77
the key directory. All options other than
78
--dir and --name are ignored.
64
82
eval set -- "$TEMP"
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-p|--password) mode=password; shift;;
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-d|--dir) KEYDIR="$2"; shift 2;;
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-t|--type) KEYTYPE="$2"; shift 2;;
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-s|--subtype) SUBKEYTYPE="$2"; shift 2;;
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-l|--length) KEYLENGTH="$2"; shift 2;;
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-L|--sublength) SUBKEYLENGTH="$2"; shift 2;;
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-n|--name) KEYNAME="$2"; shift 2;;
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-e|--email) KEYEMAIL="$2"; shift 2;;
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-c|--comment) KEYCOMMENT="$2"; shift 2;;
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if [ -z "$KEYTYPE" ]; then
100
echo "Empty key type" >&2
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if [ -z "$KEYNAME" ]; then
105
echo "Empty key name" >&2
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if [ -z "$KEYLENGTH" ] || [ "$KEYLENGTH" -lt 512 ]; then
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echo "Invalid key length" >&2
114
if [ -z "$KEYEXPIRE" ]; then
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echo "Empty key expiration" >&2
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# Make FORCE be 0 or 1
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[Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]) FORCE=1;;
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[Nn][Oo]|[Ff][Aa][Ll][Ss][Ee]|*) FORCE=0;;
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if { [ -e "$SECKEYFILE" ] || [ -e "$PUBKEYFILE" ]; } \
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&& [ "$FORCE" -eq 0 ]; then
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echo "Refusing to overwrite old key files; use --force" >&2
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# Set lines for GnuPG batch file
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if [ -n "$KEYCOMMENT" ]; then
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KEYCOMMENTLINE="Name-Comment: $KEYCOMMENT"
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if [ -n "$KEYEMAIL" ]; then
136
KEYEMAILLINE="Name-Email: $KEYEMAIL"
140
BATCHFILE="`mktemp -t mandos-gpg-batch.XXXXXXXXXX`"
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if [ "$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
141
176
SECRING="`mktemp -t mandos-gpg-secring.XXXXXXXXXX`"
142
177
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"
144
187
# Remove temporary files on exit
147
rm --force $PUBRING $BATCHFILE;
148
shred --remove $SECRING;
190
rm --force $PUBRING ${PUBRING}~ $BATCHFILE $TRUSTDB; \
191
shred --remove $SECRING $SECFILE; \
152
# Create batch file for GnuPG
153
cat >"$BATCHFILE" <<EOF
155
Key-Length: $KEYLENGTH
156
#Key-Usage: encrypt,sign,auth
160
Expire-Date: $KEYEXPIRE
168
# Generate a new key in the key rings
169
gpg --no-random-seed-file --quiet --batch --no-tty \
170
--no-default-keyring --no-options --batch \
171
--secret-keyring "$SECRING" --keyring "$PUBRING" \
172
--gen-key "$BATCHFILE"
173
rm --force "$BATCHFILE"
175
# Backup any old key files
176
if cp --backup=numbered --force "$SECKEYFILE" "$SECKEYFILE" \
178
shred --remove "$SECKEYFILE"
180
if cp --backup=numbered --force "$PUBKEYFILE" "$PUBKEYFILE" \
182
rm --force "$PUBKEYFILE"
185
FILECOMMENT="Mandos client key for $KEYNAME"
186
if [ "$KEYCOMMENT" != "$KEYCOMMENT_ORIG" ]; then
187
FILECOMMENT="$FILECOMMENT ($KEYCOMMENT)"
190
if [ -n "$KEYEMAIL" ]; then
191
FILECOMMENT="$FILECOMMENT <$KEYEMAIL>"
194
# Export keys from key rings to key files
195
gpg --no-random-seed-file --quiet --batch --no-tty --armor \
196
--no-default-keyring --no-options --secret-keyring "$SECRING" \
197
--keyring "$PUBRING" --export-options export-minimal \
198
--comment "$FILECOMMENT" --output "$SECKEYFILE" \
200
gpg --no-random-seed-file --quiet --batch --no-tty --armor \
201
--no-default-keyring --no-options --secret-keyring "$SECRING" \
202
--keyring "$PUBRING" --export-options export-minimal \
203
--comment "$FILECOMMENT" --output "$PUBKEYFILE" \
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-----$/{
303
# Remove 24-bit Radix-64 checksum
314
# Remove the password file, if any
315
if [ -n "$SECFILE" ]; then
316
shred --remove "$SECFILE"
208
318
# Remove the key rings
209
319
shred --remove "$SECRING"
210
rm --force "$PUBRING"
320
rm --force "$PUBRING" "${PUBRING}~"
321
# Remove the trustdb, if one did not exist when we started
322
if [ -n "$TRUSTDB" ]; then
323
rm --force "$TRUSTDB"