8123dcd699
The new version 1 file-based reverse index has a footer with the checksum of the corresponding pack file and a checksum of its own contents. The initial implementation doesn't enforce that the pack checksum matches the checksum found in the forward index nor that the self checksum matches the contents of the file just read in. Offer a method for reverse index users to verify the checksums in a way appropriate to the version being used. For the pre-existing computed version, always succeed since it is not based on a file so there is no possibility of corruption. Check for corruption of the file itself during parsing the checksum footer, by comparing the self checksum with the digest of the file contents read. Change-Id: I87ff3933cf1afa76663350400b616695e4966cb6 Signed-off-by: Anna Papitto <annapapitto@google.com> |
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