We should not touch any data while verifying packages (or parsing the
in-memory ASN.1 structures).
Test: mmma bootable/recovery
Test: recovery_component_test passes.
Test: recovery_unit_test passes.
Change-Id: Ie990662c6451ec066a1807b3081c9296afbdb0bf
This adds support for key version 5 which is an EC key using the NIST
P-256 curve parameters. OTAs may be signed with these keys using the
ECDSA signature algorithm with SHA-256.
Change-Id: Id88672a3deb70681c78d5ea0d739e10f839e4567