On 26.9.2013 14:06, Pavel Machek wrote: > Actually... > > Is not it as simple as storing hash of hibernation image into NVRAM > and then verifying the hash matches the value in NVRAM on next > startup? No encryption needed. I think that part of the exercise is to minimize the number of writes to the NVRAM. The hash changes with every hibernation, obviously. Michal -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html