Add a proto for the microdroid signature partition
Microdroid will use this special partition composed of signatures to
verify the payloads delivered from the host.
For now it only conveys the list of APEX signatures: size, public key,
root digest.
The signature partition can be a part of the payload composite disk
image.
The format of the signature partition is, as described in README.md,
composed of header and body. For now the header is simply the size of
the body(protobuf message).
Bug: 185069443
Test: n/a
Change-Id: I47c7eac195999bab15ee80d3ad053261f04df89c
2 files changed