This bug was fixed in the package apt - 0.9.7.5ubuntu5.6
--------------- apt (0.9.7.5ubuntu5.6) quantal; urgency=low
* Fix apt-ftparchive's generation of SHA512 checksums for Sources, previously incorrectly generated as SHA256 (LP: #1234705). -- Colin Watson <email address hidden> Thu, 03 Oct 2013 14:51:28 +0100
This bug was fixed in the package apt - 0.9.7.5ubuntu5.6
---------------
apt (0.9.7.5ubuntu5.6) quantal; urgency=low
* Fix apt-ftparchive's generation of SHA512 checksums for Sources,
previously incorrectly generated as SHA256 (LP: #1234705).
-- Colin Watson <email address hidden> Thu, 03 Oct 2013 14:51:28 +0100