Quote:
Originally Posted by picree
This feels backwards though.
It seems like this would allow downgrading from the factory package.
But the first step in the current jailbreak is to downgrade from a customer release back to the factory package.
Guess I don't understand how all that works.
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There are two components involved in the "downgrade attack" prevention.
The checker and the checkee.
The checkee (the factory_*.bin) does not satisfy the checker's (the running consumer_*.bin) requirements to be blocked.
I.E: It is not the firmware version that is doing the checking, it is the firmware package that is being checked that does not satisfy the test required for being blocked.