and starts with:
bash-3.2$ hexdump .priKey | more 0000000 30 82 04 a3 02 01 00 02 82 01 01 00 ed 71 d6 3f 0000010 21 ff 0b 45 63 a4 3d 87 1d 22 44 8f c9 b5 84 08 0000020 29 5b 59 dc 0f 30 d2 a9 4f 52 e1 f2 97 51 0b b5
openssl rsa -inform DER -in Ivy_Bridge_018s/Keys/FW/.priKey -text
But still, I don't know how to verify that this key is not the one refered to by the "DO NOT USE" certs (which, to me, sounds pretty reasonable to assume).
and starts with: