Struct SessionKeys10 

pub struct SessionKeys10 {
    pub app_s_key: AppSKey,
    pub nwk_s_key: NwkSKey,
}

LoRaWAN 1.0 session keys derived during OTAA.

The two keys cover all 1.0 session needs:

• AppSKey encrypts FRMPayload when FPort > 0.
• NwkSKey computes the Data MIC and encrypts FRMPayload when FPort == 0.

Build with SessionKeys10::derive given the device’s AppKey and the join exchange’s NetId, AppNonce, and DevNonce.

Fields

app_s_key: AppSKey

Application session key.

nwk_s_key: NwkSKey

Network session key.

Implementations

impl SessionKeys10

pub fn derive( app_key: &AppKey, net_id: &NetId, app_nonce: &AppNonce, dev_nonce: &DevNonce, ) -> Self

Derive AppSKey and NwkSKey from the OTAA root key and join nonces.

The derivation is AES-ECB-encrypt(AppKey, 0x0? || AppNonce_LE || NetID_LE || DevNonce_LE || padding) with 0x01 for NwkSKey and 0x02 for AppSKey.

Examples

use lora_packet::{SessionKeys10, AppKey, NetId, AppNonce, DevNonce};

let app_key = AppKey::new([0u8; 16]);
let keys = SessionKeys10::derive(
  &app_key,
  &NetId::new([0, 0, 0]),
  &AppNonce::new([0, 0, 0]),
  &DevNonce::new([0, 0]),
);
assert_ne!(keys.app_s_key.as_bytes(), keys.nwk_s_key.as_bytes());

Trait Implementations

impl Clone for SessionKeys10

fn clone(&self) -> SessionKeys10

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SessionKeys10

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.