svn commit: r237269 - in head: etc lib/libutil

Alexey Dokuchaev danfe at FreeBSD.org
Tue Jun 19 18:40:20 UTC 2012


On Tue, Jun 19, 2012 at 08:27:52PM +0200, Dag-Erling Sm??rgrav wrote:
> Alexey Dokuchaev <danfe at FreeBSD.org> writes:
> > Maybe I don't.  I just want to know if I should switch from Blowfish to
> > SHA512.  It seems that the former is quite popular judging from discussion
> > link given above.  It also seems that des@' rationale for the switch boils
> > down to "I vastly prefer sha512 to blf, as that is what the rest of the
> > world uses."  If there's nothing wrong with Blowfish, I guess I'll stick to
> > it as I prefer compatibility among *BSD to some weird Unix clones.  :-)
> 
> My understanding is that blf and sha512 are approximately equally hard
> (or equally easy, if you like) to brute-force with a CPU, but sha512 is
> supposedly less GPU-friendly.  That plus compatibility - but mostly
> compatibility, to be honest - tipped the scales in favor of sha512.

This CPU vs. GPU particularity is something I wanted to know about,
actually.  Thanks for this piece of knowledge Dag-Erling, and sorry for the
noise.

./danfe


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