VN Others Onhold Partial about Euphoria eroge old version, help plz

[lemywinks]

Hi, I need some miscellaneous info for some testing with yuris engine im doing, but i couldnt find it anywhere on the net, so if someone happens to have it i would be very grateful

So, about the original Euphoria version (the one that was only in japanese, before the HD re-release), does anyone have info about

-key encription for .ypf files
-yuris // ypf version of .ypf files
-xor encription of said files

and anything that helps repacking and recreating .ypf files

thank you very mucccccccccchhhhhhhhhh