2.2.1.6 ECC Public Keys

ECC public keys are not required as part of the LoRaWAN security specification. These keys can however be used for additional security use cases. Public keys are always associated with ECC private keys. Every ECC private key will have its own unique public key. For the ATECC608A-TNGLoRaWAN, three possible public keys can be used or generated:
  • Slot 1 contains a primary ECC private key that can be used for ECDSA signs. The public key for this slot can always be generated and used for a verify operation.
  • Slot 8 contains an ECC public key as part of the X.509 Certificate information. Certificates are not used as part of the LoRa authentication requirements.