I've made a tool which really should of been made ages ago (and probably has been). It can dump your keyvault in encrypted and decrypted form from your flash and can also encrypt and write a decrypted keyvault back to the flash. It seems to work fine for me but I've only been able to test it on my Xenon JTAG and XDK :/
It still requires you to have your CPU key however, so this isn't any kind of miracle for all the nubs reading this.
If anybody wants to help and test this for me, PM me with your motherboard and box type (JTAG/XDK) and I'll send you a link to download


