backup.img (obtained by using a tool called HDD Raw Copy Tool, link https://hddguru.com/software/HDDRaw... )
eid_root_key (obtained via cfw such as rebug or evilnat)
ssl's /sorvigolova's ps3encdec tool (link https://github.com/Sorvigolova/ps3enc...)
hxd or any other hex editor (link https://mhnexus.de/en/downloads.php?...)
calculator (windows calculator is sufficient for this)
WSL to make this easier
dd tool to copy specific regions of the backup file