#!/usr/bin/bash
if [ $# -eq 0 ]; then
echo $"Usage: `basename $0` filename" 1>&2
exit 1
fi
PEM=$1
REQ=`/bin/mktemp /tmp/openssl.XXXXXX`
KEY=`/bin/mktemp /tmp/openssl.XXXXXX`
CRT=`/bin/mktemp /tmp/openssl.XXXXXX`
NEW=${PEM}_
trap "rm -f $REQ $KEY $CRT $NEW" SIGINT
if [ ! -f $PEM ]; then
echo "$PEM: file not found" 1>&2
exit 1
fi
umask 077
OWNER=`ls -l $PEM | awk '{ printf "%s.%s", $3, $4; }'`
openssl rsa -inform pem -in $PEM -out $KEY
openssl x509 -x509toreq -in $PEM -signkey $KEY -out $REQ
openssl x509 -req -in $REQ -signkey $KEY -days 365 \
-extfile /etc/pki/tls/openssl.cnf -extensions v3_ca -out $CRT
(cat $KEY ; echo "" ; cat $CRT) > $NEW
chown $OWNER $NEW
mv -f $NEW $PEM
rm -f $REQ $KEY $CRT
exit 0
All system for education purposes only. For more tools: Telegram @jackleet