See https://freertos.org/mqtt/ for further information. | |
Contains projects that demonstrate the IoT MQTT library. | |
- Securing MQTT Communication - | |
Internet of Things use cases require MQTT communications to be secured, but secure | |
authentication and encryption are not part of the MQTT specification. It is | |
therefore common to use MQTT in combination with Transport Layer Security (TLS). | |
TLS encrypts data sent across a network and enables the data's destination to be | |
authenticated. 'Server authentication' is when the MQTT client authenticates the | |
identity of the MQTT broker. 'Mutual authentication' is when the MQTT broker also | |
authenticates the identity of the MQTT client. | |
- Pre-configured MQTT Example Projects - | |
The examples contained in subdirectories from here demonstrate the concepts | |
described above one at a time. The first example demonstrates plain text | |
(unencrypted) MQTT communication, the second example builds on the first to | |
introduce weak server authentication, and the third example builds on the second to | |
introduce strong mutual authentication. Note: It is our recommendation to always | |
use strong mutual authentication in any Internet of Things (IoT) application. The | |
plain text project is only provided to validate MQTT communication can be | |
established prior to introducing encryption and authentication, and to allow the | |
MQTT packets to be observed using a network packet sniffer such as Wireshark for | |
those who wish to do so. The first two projects are in no way intended to be | |
examples suitable for production use. |