commit 33ff54fd5272ba4807c704aee8a46ee5d7d29215
author Alyssa Haroldsen <kupiakos@google.com> Tue Apr 12 14:21:46 2022 -0700
committer Chromeos LUCI <chromeos-scoped@luci-project-accounts.iam.gserviceaccount.com> Wed Apr 13 10:35:51 2022 +0000
tree 1a2d749c922830acffe60c384d4a45b0bf5cf569
parent e61f21346777c792868c96aad295aa704a41eae3

[futility] Open gscvd in R/O mode when verifying

Otherwise, it will mutate the file under your feet!
This also adds some clarifying messages, including a message if
verification failed due to incorrect signing instead of silent output.

BUG=None
TEST=`futility gscvd <file>` does not change sha256sum of file
BRANCH=None
Signed-off-by: Alyssa Haroldsen <kupiakos@google.com>

Change-Id: Ic793ad47c0160e3cedb7e2b7cc842a3f4380749d
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/3584690
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
Commit-Queue: Alyssa Haroldsen <kupiakos@google.com>
Tested-by: Alyssa Haroldsen <kupiakos@google.com>