[mosquitto-dev] AWS MQTTS on 443

[Tatsuzo Osawa <tatsuzo.osawa@xxxxxxxxx>]

Hi there,

AWS announced a new feature of MQTT using port 443.

https://aws.amazon.com/jp/blogs/iot/mqtt-with-tls-client-authentication-on-port-443-why-it-is-useful-and-how-it-works/

I guess it is very suggestive for Mosquitto's new features.

To correspond with the AWS new feature, Mosquitto as a MQTT client needs:

1) Support ALPN using openssl 1.0.2 or later.

2) Support CONNECT method prior to the TLS negotiation in order to go
through the https-proxy.

3) Support proxy authentification.

on all of mosquitto_pub/sub, libmosquitto, and bridge.

Any comment will be grateful.

Regrds,
Tatsuzo