How sent encrypted data on my private LoRa network between nodes?

#1

I send broadcast message (I use the examples code on Arduino) on LoRa Network between cubecells nodes, but I need add secure the network, and send encrypted message to particular node and encrypted in another one node.
It is possible with nodes, HTCC-AB01 o Lora 32 wifi?
All nodes use the US915 frecuency.

Thanks,
Andres Gomez

#2

You may need to write your own protocol implementation.
You can refer to this link: https://www.radioshuttle.de/en/eagle-en/eagle-board-en/
to see if it meets the requirements.

#3

Depending on the security requirement, but a simple solution would be to cyther your payload bits with a fixed passphrase before sending and decyther it with the same phrase on the receiving node.