Comment on Cloudflare Pub/Sub: Programmable MQTT Message BrokersparentComments−fisian4ySome time ago I was at a talk about verifying different MQTT brokers so they fulfill the spec. They presented several inconsistencies they found (in OSS brokers) and submitted fixes for.I looked up if there's some info online and found that paper (unfortunately paywalled): https://graz.pure.elsevier.com/en/publications/learning-base...−elithrarOP4yThe F-Secure folks also have https://github.com/F-Secure/mqtt_fuzz - although it doesn't support authenticated brokers as of yet.
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Some time ago I was at a talk about verifying different MQTT brokers so they fulfill the spec. They presented several inconsistencies they found (in OSS brokers) and submitted fixes for.
I looked up if there's some info online and found that paper (unfortunately paywalled): https://graz.pure.elsevier.com/en/publications/learning-base...
The F-Secure folks also have https://github.com/F-Secure/mqtt_fuzz - although it doesn't support authenticated brokers as of yet.