Struct SessionKeys11 

pub struct SessionKeys11 {
    pub app_s_key: AppSKey,
    pub f_nwk_s_int_key: FNwkSIntKey,
    pub s_nwk_s_int_key: SNwkSIntKey,
    pub nwk_s_enc_key: NwkSEncKey,
}

LoRaWAN 1.1 session keys derived during OTAA.

1.1 splits the 1.0 NwkSKey into three role-specific keys (FNwkSIntKey, SNwkSIntKey, NwkSEncKey) plus keeps the application session key. See crate::V1_1MicKeys for how they slot into MIC computation.

Fields

app_s_key: AppSKey

Application session key (FRMPayload crypt with FPort > 0).

f_nwk_s_int_key: FNwkSIntKey

Forwarding network session integrity key (lower 2 MIC bytes for uplink Data frames).

s_nwk_s_int_key: SNwkSIntKey

Serving network session integrity key (upper 2 MIC bytes for uplinks, full MIC for downlinks).

nwk_s_enc_key: NwkSEncKey

Network session encryption key (FOpts MAC commands, plus FRMPayload when FPort == 0).

Implementations

impl SessionKeys11

pub fn derive( app_key: &AppKey, nwk_key: &NwkKey, join_eui: &AppEui, app_nonce: &AppNonce, dev_nonce: &DevNonce, ) -> Self

Derive all four 1.1 session keys.

AppSKey is derived from AppKey; the three network keys are derived from NwkKey. Inputs include JoinEUI because 1.1 binds the session to the join server identity.

Examples

use lora_packet::{SessionKeys11, AppKey, NwkKey, AppEui, AppNonce, DevNonce};

let keys = SessionKeys11::derive(
  &AppKey::new([0u8; 16]),
  &NwkKey::new([0u8; 16]),
  &AppEui::new([0u8; 8]),
  &AppNonce::new([0, 0, 0]),
  &DevNonce::new([0, 0]),
);
assert_ne!(keys.app_s_key.as_bytes(), keys.f_nwk_s_int_key.as_bytes());

Trait Implementations

impl Clone for SessionKeys11

fn clone(&self) -> SessionKeys11

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SessionKeys11

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

Formats the value using the given formatter.