#! /bin/sh
-while getopts h:y:b c
+while getopts h:u:g:o:e:y:bf c
do
case $c in
+ u) USER=$OPTARG;;
+ g) GROUP=$OPTARG;;
+ o) OUT=$OPTARG;;
b) BATCH=1;;
+ f) FORCE=1;;
h) FQDN=$OPTARG;;
- y) DAYS=$OPTARG;;
- \?) echo keygen [-h hostname/cn for cert] [-y years to issue cert]
+ e) ENTITYID=$OPTARG;;
+ y) YEARS=$OPTARG;;
+ \?) echo "keygen [-o output directory (default .)] [-u username to own keypair] [-g owning groupname] [-h hostname for cert] [-y years to issue cert] [-e entityID to embed in cert]"
exit 1;;
esac
done
+if [ -z "$OUT" ] ; then
+ OUT=.
+fi
+
+if [ -n "$FORCE" ] ; then
+ rm $OUT/sp-key.pem $OUT/sp-cert.pem
+fi
-if [ -e sp-key.pem ] || [ -e sp-cert.pem ] ; then
- if [ -z $BATCH ] ; then
- echo The files sp-key.pem and/or sp-cert.pem already exist!
+if [ -s $OUT/sp-key.pem -o -s $OUT/sp-cert.pem ] ; then
+ if [ -z "$BATCH" ] ; then
+ echo The files $OUT/sp-key.pem and/or $OUT/sp-cert.pem already exist!
+ echo Use -f option to force recreation of keypair.
exit 2
fi
exit 0
fi
-if [ -z $FQDN ] ; then
+if [ -z "$FQDN" ] ; then
FQDN=`hostname`
fi
-if [ -z $DAYS ] ; then
- DAYS=10
+if [ -z "$YEARS" ] ; then
+ YEARS=10
+fi
+
+DAYS=`expr $YEARS \* 365`
+
+if [ -z "$ENTITYID" ] ; then
+ ALTNAME=DNS:$FQDN
+else
+ ALTNAME=DNS:$FQDN,URI:$ENTITYID
fi
-DAYS=$(($DAYS*365))
+SSLCNF=$OUT/sp-cert.cnf
+cat >$SSLCNF <<EOF
+# OpenSSL configuration file for creating sp-cert.pem
+[req]
+prompt=no
+default_bits=2048
+encrypt_key=no
+default_md=sha1
+distinguished_name=dn
+# PrintableStrings only
+string_mask=MASK:0002
+x509_extensions=ext
+[dn]
+CN=$FQDN
+[ext]
+subjectAltName=$ALTNAME
+subjectKeyIdentifier=hash
+EOF
-openssl req -x509 -days $DAYS -newkey rsa:2048 -nodes -keyout sp-key.pem -out sp-cert.pem -subj /CN=$FQDN -extensions usr_cert -set_serial 0
+touch $OUT/sp-key.pem
+chmod 600 $OUT/sp-key.pem
+if [ -z "$BATCH" ] ; then
+ openssl req -config $SSLCNF -new -x509 -days $DAYS -keyout $OUT/sp-key.pem -out $OUT/sp-cert.pem
+else
+ openssl req -config $SSLCNF -new -x509 -days $DAYS -keyout $OUT/sp-key.pem -out $OUT/sp-cert.pem 2> /dev/null
+fi
+rm $SSLCNF
+
+if [ -s $OUT/sp-key.pem -a -n "$USER" ] ; then
+ chown $USER $OUT/sp-key.pem $OUT/sp-cert.pem
+fi
+
+if [ -s $OUT/sp-key.pem -a -n "$GROUP" ] ; then
+ chgrp $GROUP $OUT/sp-key.pem $OUT/sp-cert.pem
+fi