System requirements for using SHA-2 cipher suites with MQTT channels

If you use a version of Java that supports SHA-2 cipher suites, you can use these suites to secure your MQTT (telemetry) channels and client apps.

For IBM® MQ 8.0 , which includes the telemetry (MQXR) service, the minimum Java version is Java 7 from IBM , SR6. SHA-2 cipher suites are supported by default in Java 7 from IBM, SR4 onwards. You can therefore use SHA-2 cipher suites with the telemetry (MQXR) service to secure your MQTT (telemetry) channels.

If you are running an MQTT client with a different JRE, you need to ensure that it also supports the SHA-2 cipher suites.