HelenOS sources

KEK_OFFSET       1499 uspace/lib/ieee80211/src/ieee80211.c 				rc = ieee80211_aes_key_unwrap(ptk + KEK_OFFSET,
KEK_OFFSET       1503 uspace/lib/ieee80211/src/ieee80211.c 				memcpy(work_key + 16, ptk + KEK_OFFSET, 16);