Angus Gratton a479ee30c9 secure boot: Add boot check for SBV2 "check app signature on update"
As this mode uses the public keys attached to the existing app's signatures to
verify the next app, checking that a signature block is found on boot prevents
the possibility of deploying a non-updatable device from the factory.
2021-03-17 17:08:59 +08:00
..