flexlm and VENDOR_KEY5

[swork3]

hi, i searched around but i have not found an answer, i have an app useing
flexlm 9.x, i followed some tutorial and found VENDOR_KEY1-4 and vc.data[0]
and vc.data[1] (the time() and xor table thing) i got ENCRYPTION_SEED1 and 2,
i tested that 3 times - got the same seed1 and 2, so that is correct.
Now the thing i do not understand fully, is VENDOR_KEY5 generated out of
key1-4 and vendor? or how can i find that? thanks