cookie_precompute_key
static void cookie_precompute_key(uint8_t *,
cookie_precompute_key(cp->cp_mac1_key, key, COOKIE_MAC1_KEY_LABEL);
cookie_precompute_key(cp->cp_cookie_key, key, COOKIE_COOKIE_KEY_LABEL);
cookie_precompute_key(cc->cc_mac1_key, key, COOKIE_MAC1_KEY_LABEL);
cookie_precompute_key(cc->cc_cookie_key, key, COOKIE_COOKIE_KEY_LABEL);