With the LoRaWAN Packet Coder, telegrams can be decrypted using the App Session Key and Network Session Key. The software also provides the capability to encrypt a payload with the two session keys and generate an uplink message. This tool is intended for testing purposes and is based on the LoRaWAN Specification 1.0.4.

Decoding LoRaWAN Telegrams

To decode and decrypt a LoRaWAN telegram, the AppSKey (App Session Key) must be specified. The NwSKey (Network Session Key) is required for calculating the MIC. In addition to the two keys, the complete payload must be provided in Base64 or HEX format:

Encoding LoRaWAN Telegrams

The tool can also be used to encode and encrypt LoRaWAN telegrams. The generated payload represents an unconfirmed uplink without frame options. The unencrypted payload is encrypted with the desired keys (AppSKey & NwSKey):