Add script for re-signing final firmware images with the correct keys.
Also add a script for splitting a firmware image into component firmware data, vblocks and the GBB.
Note: The script uses fmap_decode, a utility to parse flashmap of a firmware image, and a part of the flashmap project:
http://code.google.com/p/flashmap/
BUG=3496
TEST=Tested with newer builds of firmware images with flashmaps enabled. Steps to verify:
1) Use script to re-sign an existing image with a new set of keys.
2) Use unpack_firmwarefd.sh to get individual firmware data and vblocks.
3) Use vbutil_firmware with the new keys. Verification should succeed with
the newer keys but fail with the older ones.
Review URL: http://codereview.chromium.org/3026018
4 files changed