Function get_js_key

lrwn/src/keys.rs:114–127

(typ: u8, dev_eui: &EUI64, nwk_key: &AES128Key)

}

fn get_js_key(typ: u8, dev_eui: &EUI64, nwk_key: &AES128Key) -> Result<AES128Key> {
    let key_bytes = nwk_key.to_bytes();
    let key = Array::from(key_bytes);
    let cipher = Aes128::new(&key);

    let mut b: [u8; 16] = [0; 16];
    b[0] = typ;
    b[1..9].clone_from_slice(&dev_eui.to_le_bytes());

    let mut block = Block::from(b);
    cipher.encrypt_block(&mut block);

    Ok(AES128Key::from_slice(&block)?)
}

#[cfg(test)]
pub mod test {