tree b2d6ab38e3122bd44e9df5455ae2e13e83e5a6cd
parent bef0c7dbe9e65417857791d912118ec86184c40e
author Andrew de los Reyes <adlr@chromium.org> 1282328754 -0700
committer Andrew de los Reyes <adlr@chromium.org> 1282328754 -0700

AU: Payload Signer class

This class can take a private key and sign a blob of data. The API is
amenable to the upcoming change to delta_diff_generator that will use
it.

Also, minor change to the protobuf to support signatures.

TEST=unittests
BUG=5662

Review URL: http://codereview.chromium.org/3173032