MQTT TLS加密传输证书验证不过去。

嵌入式设备客户端：

./mosquitto_sub -h 172.22.50.2 -u sub_client -P 123456 -p 8883 -t hh --cafile ./ca.crt --tls-version tlsv1

linux服务器：

mosquitto -c ./mosquitto.conf -v

mosquitto.conf

pid_file /var/run/mosquitto.pid
persistence true
persistence_location /var/lib/mosquitto/
port 8883
cafile /etc/mosquitto/myca/ca.crt
certfile /etc/mosquitto/myca/server.crt
keyfile /etc/mosquitto/myca/server.key
tls_version tlsv1
``

服务器报错：

1552620704: OpenSSL Error: error:1409441B:SSL routines:SSL3_READ_BYTES:tlsv1 alert decrypt error
1552620704: OpenSSL Error: error:140940E5:SSL routines:SSL3_READ_BYTES:ssl handshake failure