tree 1901060c40a35f16349065f2a8d0e324c95383ea
parent f67c41ede7b456270494ac7607692c3a76f7c67d
author David Zeuthen <zeuthen@google.com> 1458660141 -0400
committer David Zeuthen <zeuthen@google.com> 1458666309 -0400

bvb_refimpl: Hide SHA and RSA code from application code.

This hides the code implementing the few RSA and SHA bits we're using
from the application, enabling us to change to another crypto
implementation in the future if we so desire.

Since we have limited control over the build system used, this is
best-effort by playing C preprocessor games. The approach used is
similar to how other C libraries do this (GLib, GTK+, D-Bus).

BUG=None
TEST=Manually tested.

Change-Id: Icd3092d44d1b38419b657839c39f27b051bdcebe