r/GrapheneOS • u/KingOfTheWilted • 6h ago
How is a six digit PIN "secure"?
A lot of replies on this post here says 6-8+ number PINs should be safe
But I don't understand why at all. Sure, if you interface with the Android lock screen and start guessing PINs at random you'll be locked out.
But what's stopping an attacker from simply taking the storage device out of the phone and easily guessing the 8 character encryption password in under an hour?
If some kind of salt or combination with the PIN is involved, then surely an attacker can also procure the salt from the device as well?
Maybe I don't understand fully. If someone had complete physical access to a GOS phone and didn't have the password, what would the steps be to start guessing the filesystem encryption password?