DevAddris assigned and security keys are negotiated.
DevAddras well as the security keys need to be hardcoded in the device, which requires activation by personalization (ABP). ABP end-devices are not provisioned with the root keys, instead, they are provisioned with a set of session keys. The session keys remain the same throughout the lifetime of an ABP end device.
AppKey. All keys have a length of 128 bits (16 bytes).
NwkSKey) is used for interaction between the Node and the Network Server. This key is used to validate the integrity of each message by its Message Integrity Code (MIC check). This MIC is similar to a checksum, except that it prevents intentional tampering with a message. For this, LoRaWAN uses AES-CMAC.
AppSKey) is used for encryption and decryption of the payload. The payload is fully encrypted between the Node and the Application Server component.
AppKey) to derive the two session keys during the activation procedure.
NwkSKey) and the Application Session Key (
AppSKey) to be provided.