tree 7d0bcc84f584f2d6e21c567ba0008ca867fa48cd
parent e5831f6ed2914e347b7a7a109eab993d3add56fa
author Fabio Utzig <utzig@apache.org> 1544777258 -0200
committer Fabio Utzig <utzig@utzig.org> 1545064862 -0200

Fix handling of encrypted images

Encrypted images were known to be failing when the header size was larger
than 256 bytes because of incorrect handling of blocks sent to decryption
and hashing routines. An assert was previously added to check the header
and read block sizes matched to avoid incurring into the know error, but
it was incorrectly enabled also for non-encrypted images.

Now the handling of the header, which is not encrypted, is correctly
separated from the handling of the remaining image, when encryption is
used, to avoid ever sending header data into the decryption routines.

Signed-off-by: Fabio Utzig <utzig@apache.org>