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Meshtastic Encryption | Meshtastic

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Meshtastic provides AES256-CTR encryption for the payload of each packet when sending via LoRa, with a different key for each channel. The packet header is always sent unencrypted, which allows nodes to relay packets they can't decrypt as well. One can disable this by setting a different rebroadcast mode. By default, you have one primary channel, which is encrypted with a simple known key ("AQ=="), so to use proper encryption, you must change this key first, or create a new channel and share it with the ones you want to communicate with. However, if you don't have the default key, it means you will not be able to communicate with devices that don't have your key. Direct messages to a specific node are now encrypted using Public Key Cryptography (PKC). Each node is equipped with a unique public/private key pair, and direct messages are encrypted with the recipient's public key. This ensures that only the recipient can decrypt the message using their private key. Additionally, messages a

On this page Explanation ​ Meshtastic provides AES256-CTR encryption for the payload of each packet when sending via LoRa, with a different key for each channel . The packet header is always sent unencrypted, which allows nodes to relay packets they can't decrypt as well. One can disable this by setting a different rebroadcast mode . By default, you have one primary channel, which is encrypted with a simple known key ("AQ=="), so to use proper encryption, you must change this key first, or create a new channel and share it with the ones you want to communicate with. However, without a channel

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