Per console keys - PS3DevWiki - got updated with a way of obtaining the root key.
Now for the information that was posted on PS3DevWiki.
bootldr is decrypted with this key
might be obtained with per_console_root_key_1?
per_console_root_key_1 / EID_root_key
stored inside metldr
copied to sector 0 by metldr
cleared by isoldr
Used to decrypt part of the EID
Used to derive further keys
can be obtained with a modifyed isoldr that dumps it
can be obtained with a derivation of this key going backwards
modified kernel module
(both can be found on this wiki)
patched isoldr to dump it
DO NOT CREATE AN MFW USING THIS IT WOULD BRICK
per_console_root_key_2 / EID_root_key
Stay tuned for more updates as they develop.
Thanks to Tiay for the news submission!!