Not quite the same thing, but forward secure sealing is relevant: https://lwn.net/Articles/512895/ https://lwn.net/Articles/512895/ You can always also use a s

Not quite the same thing, but forward secure sealing is relevant: https://lwn.net/Articles/512895/ https://lwn.net/Articles/512895/ You can always also use a smartcard type device to sign your files. Then a reboot (power cycle) will revoke signing capability until unlocked again.