Lines Matching refs:rollback
107 known security flaws. Each VBMeta struct has a *rollback index* baked
110 ![AVB rollback indexes](docs/avb-rollback-indexes.png)
114 fixed. Additionally the device stores the last seen rollback index in
117 ![AVB stored rollback indexes](docs/avb-stored-rollback-indexes.png)
137 Note how the rollback indexes differ between slots - for slot A the
138 rollback indexes are `[42, 101]` and for slot B they are `[43, 103]`.
158 useful if the root-of-trust and/or stored rollback indexes are only available
516 `foobar` uses rollback index 8 and that the public key in AVB format
615 To prevent rollback attacks, the rollback index should be increased on
616 a regular basis. The rollback index can be set with the
621 If this is not set, the rollback index defaults to 0.
677 to read and write data from partitions, read and write rollback
729 Tamper-evident storage must be used for stored rollback indexes, keys
821 For an HLOS like Android where rollback is only supported if the
853 UNLOCKED any key can be used and rollback index failures are
879 rollback `stored_rollback_index[n]` on the device. Because of this
990 security features (including rollback-protection) are in effect, e.g. the