RPMB key programming in new eMMC is available in Easy Jtag and UFPI programmers for free. This is the first function we need in UFI. No operating system appears to be needed to program the RPMB key. Competition can also verify the key. it's good that someone who seriously deals with emmc has many tools ... I wrote about such a need two years ago, but you can see that this function cannot be implemented in UFI or it is used only in paid scripts. UFI is irreplaceable in partition operations, which is a big advantage.