Mosquitto 单向SSL配置

摘自：https://blog.csdn.net/a_bcd_123/article/details/70167833

1.生成证书

要单向配置SSL 需要做三项前置工作

1. 生成CA证书

2.生成server 端证书，server 端key

github 的一个开源项目已经做到这点，详情可见 https://github.com/iandl/mqttitude/blob/master/tools/TLS/generate-CA.sh

为方便阅读，整个shell 代码先贴出来

#!/bin/sh
#(@)generate-CA.sh - Create CA key-pair and server key-pair signed by CA# Copyright (c) 2013 Jan-Piet Mens <jpmens()gmail.com>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice,
#    this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
# 3. Neither the name of mosquitto nor the names of its
#    contributors may be used to endorse or promote products derived from
#    this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.set -eDIR=${TARGET:='.'}
# A space-separated list of alternate hostnames (subjAltName)
# may be empty ""
ALTHOSTNAMES="broker.example.com foo.example.de"
CA_ORG='/O=MQTTitude.org/emailAddress=nobody@example.net'
CA_DN="/CN=An MQTT broker${CA_ORG}"
CACERT=${DIR}/ca
SERVER=${DIR}/server
SERVER_DN="/CN=$(hostname -f)$CA_ORG"
keybits=2048
openssl=$(which openssl)function maxdays() {
nowyear=$(date +%Y)
years=$(expr 2032 - $nowyear)
days=$(expr $years '*' 365)echo $days
}function getipaddresses() {
/sbin/ifconfig |
sed -En '/inet6? /p' |
sed -Ee 's/inet6? (addr:)?//' |
awk '{print $1;}' |
sed -e 's/[%/].*//' |
egrep -v '(::1|127\.0\.0\.1)'# omit loopback to add it later
}function addresslist() {ALIST=""
for a in $(getipaddresses); do
ALIST="${ALIST}IP:$a,"
done
ALIST="${ALIST}IP:127.0.0.1,IP:::1,"for h in $(echo ${ALTHOSTNAMES}); do
ALIST="${ALIST}DNS:$h,"
done
ALIST="${ALIST}DNS:localhost"
echo $ALIST}days=$(maxdays)if [ -n "$CAKILLFILES" ]; then
rm -f $CACERT.??? $SERVER.??? $CACERT.srl
fiif [ ! -f $CACERT.crt ]; then
# Create un-encrypted (!) key
$openssl req -newkey rsa:${keybits} -x509 -nodes -days $days -extensions v3_ca -keyout $CACERT.key -out $CACERT.crt -subj "${CA_DN}"
echo "Created CA certificate in $CACERT.crt"
$openssl x509 -in $CACERT.crt -nameopt multiline -subject -nooutchmod 400 $CACERT.key
chmod 444 $CACERT.crt
fiif [ ! -f $SERVER.key ]; then
echo "--- Creating server key and signing request"
$openssl genrsa -out $SERVER.key $keybits
$openssl req -new \
-out $SERVER.csr \
-key $SERVER.key \
-subj "${SERVER_DN}"
chmod 400 $SERVER.key
fiif [ -f $SERVER.csr -a ! -f $SERVER.crt ]; then# There's no way to pass subjAltName on the CLI so
# create a cnf file and use that.CNF=`mktemp /tmp/cacnf.XXXXXXXX` || { echo "$0: can't create temp file" >&2; exit 1; }
sed -e 's/^.*%%% //' > $CNF <<\!ENDconfig
%%% [ JPMextensions ]
%%% basicConstraints        = critical,CA:false
%%% nsCertType              = server
%%% keyUsage                = nonRepudiation, digitalSignature, keyEncipherment
%%% nsComment               = "Broker Certificate"
%%% subjectKeyIdentifier    = hash
%%% authorityKeyIdentifier  = keyid,issuer:always
%%% subjectAltName          = $ENV::SUBJALTNAME
%%% # issuerAltName           = issuer:copy
%%% nsCaRevocationUrl       = http://mqttitude.org/carev/
%%% nsRevocationUrl         = http://mqttitude.org/carev/
!ENDconfigSUBJALTNAME="$(addresslist)"
export SUBJALTNAME# Use environment. Because I can. ;-)echo "--- Creating and signing server certificate"
$openssl x509 -req \
-in $SERVER.csr \
-CA $CACERT.crt \
-CAkey $CACERT.key \
-CAcreateserial \
-CAserial "${DIR}/ca.srl" \
-out $SERVER.crt \
-days $days \
-extfile ${CNF} \
-extensions JPMextensionsrm -f $CNF
chmod 444 $SERVER.crt
fi