3
# Mandos key generator - create a new OpenPGP key for a Mandos client
3
# Mandos key generator - create new keys for a Mandos client
5
# Copyright © 2008-2017 Teddy Hogeborn
6
# Copyright © 2008-2017 Björn Påhlsson
5
# Copyright © 2008-2019 Teddy Hogeborn
6
# Copyright © 2008-2019 Björn Påhlsson
8
8
# This file is part of Mandos.
47
TEMP=`getopt --options vhpF:d:t:l:s:L:n:e:c:x:fS \
48
--longoptions version,help,password,passfile:,dir:,type:,length:,subtype:,sublength:,name:,email:,comment:,expire:,force,no-ssh \
48
TEMP=`getopt --options vhpF:d:t:l:s:L:n:e:c:x:T:fS \
49
--longoptions version,help,password,passfile:,dir:,type:,length:,subtype:,sublength:,name:,email:,comment:,expire:,tls-keytype:,force,no-ssh \
49
50
--name "$0" -- "$@"`
63
64
-v, --version Show program's version number and exit
64
65
-h, --help Show this help message and exit
65
66
-d DIR, --dir DIR Target directory for key files
66
-t TYPE, --type TYPE Key type. Default is RSA.
67
-t TYPE, --type TYPE OpenPGP key type. Default is RSA.
67
68
-l BITS, --length BITS
68
Key length in bits. Default is 4096.
69
OpenPGP key length in bits. Default is 4096.
69
70
-s TYPE, --subtype TYPE
70
Subkey type. Default is RSA.
71
OpenPGP subkey type. Default is RSA.
71
72
-L BITS, --sublength BITS
72
Subkey length in bits. Default is 4096.
73
OpenPGP subkey length in bits. Default 4096.
73
74
-n NAME, --name NAME Name of key. Default is the FQDN.
74
75
-e ADDRESS, --email ADDRESS
75
Email address of key. Default is empty.
76
Email address of OpenPGP key. Default empty.
76
77
-c TEXT, --comment TEXT
77
Comment field for key. The default is empty.
78
Comment field for OpenPGP key. Default empty.
78
79
-x TIME, --expire TIME
79
Key expire time. Default is no expiration.
80
OpenPGP key expire time. Default is none.
80
81
See gpg(1) for syntax.
82
-T TYPE, --tls-keytype TYPE
83
TLS key type. Default is ed25519.
81
84
-f, --force Force overwriting old key files.
83
86
Password creation options:
106
109
-e|--email) KEYEMAIL="$2"; shift 2;;
107
110
-c|--comment) KEYCOMMENT="$2"; shift 2;;
108
111
-x|--expire) KEYEXPIRE="$2"; shift 2;;
112
-T|--tls-keytype) TLS_KEYTYPE="$2"; shift 2;;
109
113
-f|--force) FORCE=yes; shift;;
110
114
-S|--no-ssh) SSH=no; shift;;
111
115
-v|--version) echo "$0 $VERSION"; exit;;
122
126
SECKEYFILE="$KEYDIR/seckey.txt"
123
127
PUBKEYFILE="$KEYDIR/pubkey.txt"
128
TLS_PRIVKEYFILE="$KEYDIR/tls-privkey.pem"
129
TLS_PUBKEYFILE="$KEYDIR/tls-pubkey.pem"
125
131
# Check for some invalid values
126
132
if [ ! -d "$KEYDIR" ]; then
141
147
echo "Empty key type" >&2
145
151
if [ -z "$KEYNAME" ]; then
146
152
echo "Empty key name" >&2
150
156
if [ -z "$KEYLENGTH" ] || [ "$KEYLENGTH" -lt 512 ]; then
151
157
echo "Invalid key length" >&2
155
161
if [ -z "$KEYEXPIRE" ]; then
156
162
echo "Empty key expiration" >&2
160
166
# Make FORCE be 0 or 1
162
168
[Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]) FORCE=1;;
163
169
[Nn][Oo]|[Ff][Aa][Ll][Ss][Ee]|*) FORCE=0;;
166
if { [ -e "$SECKEYFILE" ] || [ -e "$PUBKEYFILE" ]; } \
172
if { [ -e "$SECKEYFILE" ] || [ -e "$PUBKEYFILE" ] \
173
|| [ -e "$TLS_PRIVKEYFILE" ] \
174
|| [ -e "$TLS_PUBKEYFILE" ]; } \
167
175
&& [ "$FORCE" -eq 0 ]; then
168
176
echo "Refusing to overwrite old key files; use --force" >&2
172
180
# Set lines for GnuPG batch file
173
181
if [ -n "$KEYCOMMENT" ]; then
174
182
KEYCOMMENTLINE="Name-Comment: $KEYCOMMENT"
176
184
if [ -n "$KEYEMAIL" ]; then
177
185
KEYEMAILLINE="Name-Email: $KEYEMAIL"
180
188
# Create temporary gpg batch file
181
189
BATCHFILE="`mktemp -t mandos-keygen-batch.XXXXXXXXXX`"
190
TLS_PRIVKEYTMP="`mktemp -t mandos-keygen-privkey.XXXXXXXXXX`"
184
193
if [ "$mode" = password ]; then
195
204
test -n \"$SECFILE\" && shred --remove \"$SECFILE\"; \
205
test -n \"$TLS_PRIVKEYTMP\" && shred --remove \"$TLS_PRIVKEYTMP\"; \
196
206
shred --remove \"$RINGDIR\"/sec* 2>/dev/null;
197
207
test -n \"$BATCHFILE\" && rm --force \"$BATCHFILE\"; \
198
208
rm --recursive --force \"$RINGDIR\";
233
243
echo -n "Started: "
247
# Generate TLS private key
248
if certtool --generate-privkey --password='' \
249
--outfile "$TLS_PRIVKEYTMP" --sec-param ultra \
250
--key-type="$TLS_KEYTYPE" --pkcs8 --no-text 2>/dev/null; then
252
# Backup any old key files
253
if cp --backup=numbered --force "$TLS_PRIVKEYFILE" "$TLS_PRIVKEYFILE" \
255
shred --remove "$TLS_PRIVKEYFILE" 2>/dev/null || :
257
if cp --backup=numbered --force "$TLS_PUBKEYFILE" "$TLS_PUBKEYFILE" \
259
rm --force "$TLS_PUBKEYFILE"
261
cp --archive "$TLS_PRIVKEYTMP" "$TLS_PRIVKEYFILE"
262
shred --remove "$TLS_PRIVKEYTMP" 2>/dev/null || :
266
# First try certtool from GnuTLS
267
if ! certtool --password='' --load-privkey="$TLS_PRIVKEYFILE" \
268
--outfile="$TLS_PUBKEYFILE" --pubkey-info --no-text \
270
# Otherwise try OpenSSL
271
if ! openssl pkey -in "$TLS_PRIVKEYFILE" \
272
-out "$TLS_PUBKEYFILE" -pubout; then
273
rm --force "$TLS_PUBKEYFILE"
274
# None of the commands succeded; give up
237
280
# Make sure trustdb.gpg exists;
238
281
# this is a workaround for Debian bug #737128
239
282
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
244
287
--homedir "$RINGDIR" --trust-model always \
245
288
--gen-key "$BATCHFILE"
246
289
rm --force "$BATCHFILE"
248
291
if tty --quiet; then
249
292
echo -n "Finished: "
253
296
# Backup any old key files
254
297
if cp --backup=numbered --force "$SECKEYFILE" "$SECKEYFILE" \
255
298
2>/dev/null; then
256
shred --remove "$SECKEYFILE"
299
shred --remove "$SECKEYFILE" 2>/dev/null || :
258
301
if cp --backup=numbered --force "$PUBKEYFILE" "$PUBKEYFILE" \
259
302
2>/dev/null; then
260
303
rm --force "$PUBKEYFILE"
263
306
FILECOMMENT="Mandos client key for $KEYNAME"
264
307
if [ "$KEYCOMMENT" != "$KEYCOMMENT_ORIG" ]; then
265
308
FILECOMMENT="$FILECOMMENT ($KEYCOMMENT)"
268
311
if [ -n "$KEYEMAIL" ]; then
269
312
FILECOMMENT="$FILECOMMENT <$KEYEMAIL>"
272
315
# Export key from key rings to key files
273
316
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
274
317
--homedir "$RINGDIR" --armor --export-options export-minimal \
282
325
if [ "$mode" = password ]; then
284
327
# Make SSH be 0 or 1
286
329
[Yy][Ee][Ss]|[Tt][Rr][Uu][Ee]) SSH=1;;
287
330
[Nn][Oo]|[Ff][Aa][Ll][Ss][Ee]|*) SSH=0;;
290
333
if [ $SSH -eq 1 ]; then
291
for ssh_keytype in ecdsa-sha2-nistp256 ed25519 rsa; do
293
ssh_fingerprint="`ssh-keyscan -t $ssh_keytype localhost 2>/dev/null`"
296
if [ $err -ne 0 ]; then
300
if [ -n "$ssh_fingerprint" ]; then
301
ssh_fingerprint="${ssh_fingerprint#localhost }"
334
# The -q option is new in OpenSSH 9.8
335
for ssh_keyscan_quiet in "-q " ""; do
336
for ssh_keytype in ecdsa-sha2-nistp256 ed25519 rsa; do
338
ssh_fingerprint="`ssh-keyscan ${ssh_keyscan_quiet}-t $ssh_keytype localhost 2>/dev/null`"
341
if [ $err -ne 0 ]; then
345
if [ -n "$ssh_fingerprint" ]; then
346
ssh_fingerprint="${ssh_fingerprint#localhost }"
307
353
# Import key into temporary key rings
308
354
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
309
355
--homedir "$RINGDIR" --trust-model always --armor \
311
357
gpg --quiet --batch --no-tty --no-options --enable-dsa2 \
312
358
--homedir "$RINGDIR" --trust-model always --armor \
313
359
--import "$PUBKEYFILE"
315
361
# Get fingerprint of key
316
362
FINGERPRINT="`gpg --quiet --batch --no-tty --no-options \
317
363
--enable-dsa2 --homedir "$RINGDIR" --trust-model always \
318
364
--fingerprint --with-colons \
320
366
--expression='/^fpr:/{s/^fpr:.*:\\([0-9A-Z]*\\):\$/\\1/p;q}'`"
322
368
test -n "$FINGERPRINT"
370
if [ -r "$TLS_PUBKEYFILE" ]; then
371
KEY_ID="$(certtool --key-id --hash=sha256 \
372
--infile="$TLS_PUBKEYFILE" 2>/dev/null || :)"
374
if [ -z "$KEY_ID" ]; then
375
KEY_ID=$(openssl pkey -pubin -in "$TLS_PUBKEYFILE" \
378
| sed --expression='s/^.*[^[:xdigit:]]//')
324
383
FILECOMMENT="Encrypted password for a Mandos client"
326
385
while [ ! -s "$SECFILE" ]; do
327
386
if [ -n "$PASSFILE" ]; then
330
389
tty --quiet && stty -echo
331
390
echo -n "Enter passphrase: " >/dev/tty
375
439
if [ -n "$ssh_fingerprint" ]; then
376
echo 'checker = ssh-keyscan -t '"$ssh_keytype"' %%(host)s 2>/dev/null | grep --fixed-strings --line-regexp --quiet --regexp=%%(host)s" %(ssh_fingerprint)s"'
440
echo 'checker = ssh-keyscan '"$ssh_keyscan_quiet"'-t '"$ssh_keytype"' %%(host)s 2>/dev/null | grep --fixed-strings --line-regexp --quiet --regexp=%%(host)s" %(ssh_fingerprint)s"'
377
441
echo "ssh_fingerprint = ${ssh_fingerprint}"
384
448
# Remove the password file, if any
385
449
if [ -n "$SECFILE" ]; then
386
shred --remove "$SECFILE"
450
shred --remove "$SECFILE" 2>/dev/null
388
452
# Remove the key rings
389
453
shred --remove "$RINGDIR"/sec* 2>/dev/null
added
removed
mandos-keygen
