lora-gateway-bridge-anonymise

Reads messages from the lora-gateway-bridge gateway receive topic, anonymises them and re-sends them on another topic.

Basic steps

1. Extracts network, port, counter information from the phyPayload.
2. Hashes the devAddr as well as the whole phyPayload with a choosen HMAC.
3. Remove the original phyPayload from the final response message.

Configuration

All configuration is done using environment variables. They are as follows:

• MQTT_URL, MQTT_USERNAME, MQTT_PASSWORD (see: module documentation for their use)
• MQTT_INPUT_TOPIC (default: gateway/+/rx)
• MQTT_OUTPUT_PREFIX (default: anonymised)
• HMAC_SECRET (IMPORTANT This has to be set and if you wish for your hashes to be consistent and comparable for statistics purposes you have to use the same secret)
• HMAC_TYPE (default: sha256)