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

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

For IBM MQ Version 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. We 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. Details of the SHA-2 cipher suite support for each client is given in System requirements for using SHA-2 cipher suites with MQTT clients.