On 18.08.2013 14:25, Branko Čibej wrote: > On 18.08.2013 14:15, stef...@apache.org wrote: >> Author: stefan2 >> Date: Sun Aug 18 12:15:01 2013 >> New Revision: 1515088 >> >> URL: http://svn.apache.org/r1515088 >> Log: >> On the log-addressing branch: For low-overhead checksumming, >> add standard FNV-1a and a faster modified version of that to >> the list of checksum kinds supported with svn_checksum_t. >> >> We will use this new checksum to secure parts of FSFS (and >> later FSX) that are not directly covered by MD5/SHA1 content >> checksums. That will help to localize corruptions much quicker >> and more accurately but it will not eliminate the need to run >> a full content verification. > If you're using this for detecting corruption, rather than key > distribution, why not instead use a 64-bit or even 32-bit CRC? It should > be much faster than any kind of multiply-with-prime hash.
Or you could even use the Adler-32 implementation that we already use in the xdelta code. -- Brane -- Branko Čibej | Director of Subversion WANdisco // Non-Stop Data e. br...@wandisco.com
