[svn.haxx.se] · SVN Dev · SVN Users · SVN Org · TSVN Dev · TSVN Users · Subclipse Dev · Subclipse Users · this month's index

Re: Performance: MD4 vs MD5

From: Glenn A. Thompson <gthompson_at_cdr.net>
Date: 2003-04-25 20:07:39 CEST

>Your data are *extremely* old. The problem with MD4 is that it's easy
>to generate collisions, to the point where it's likely to be a practical
>concern for a repository storing a fairly large number of files. That
>trumps any performance concerns.
Hun, the check sums are stored per representation (file). Who cares if
two different files have the same check sum. I thoiught the point is to
detect if unexpected changes have occured in the storage of a specific
version of a file. i.e. has the DB/hardware stepped on our data
somewhere along the line. 'dem bits can be sitting around for a long
time between accesses:-)


To unsubscribe, e-mail: dev-unsubscribe@subversion.tigris.org
For additional commands, e-mail: dev-help@subversion.tigris.org
Received on Fri Apr 25 20:09:38 2003

This is an archived mail posted to the Subversion Dev mailing list.

This site is subject to the Apache Privacy Policy and the Apache Public Forum Archive Policy.