Imported code from VBoot firmware cryptolib and slightly reformat it for
the EC code base.
We already have SHA-256, but for updates over PD, the maximum payload
size is 192 bits, so SHA-1 seems a better trade-off.
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
BRANCH=none
BUG=chrome-os-partner:28336
TEST=none
Change-Id: I6da7b71a9af03c6689accfa3c59cfcf7776fcfc6
Reviewed-on: https://chromium-review.googlesource.com/199553
Reviewed-by: Alec Berg <alecaberg@chromium.org>
Tested-by: Vincent Palatin <vpalatin@chromium.org>
Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
