futility: Verify linux kernel signature
Verify the linux kernel signature on images before assuming
they contain a linux kernel. This allows non-linux images
on x86 to be left unmodified when signed.
BUG=b:38040849
BRANCH=none
TEST=sign a multiboot kernel image that remains unmodified, and
ensure that x86 linux kernels are still updated properly and
can still be booted.
Change-Id: Ib7ba2d59ebe6413ab355aa7c0a9ee2e32c3ed98a
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://chromium-review.googlesource.com/497932
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2 files changed
