On Feb 7, 2010, at 15:10, Darren J Moffat wrote:
On 07/02/2010 20:07, Joerg Moellenkamp wrote:
Hello,
while writing some articles about dedup, hashes and ZFS for my
blog, i
asked myself: When fletcher4 is fast, but collision prone and
sha256 is
slower, but relatively secure, wouldn't it be reasonable to integrate
Skein (http://www.schneier.com/skein.pdf) into ZFS to yield faster
checksumming as well as a reduced probability of false positive
deduplications due to hash collisions?
If Skein passes the cryptanlaysis for the SHA3 competition being run
by NIST and is the winner of that competition or is otherwise
considered sounds by the crypto community then yes until then I
think it is premature to do so as it is a very new algorithm.
A new attack on Threefish (which Skein is based on) was recently
announced:
http://www.schneier.com/blog/archives/2010/02/new_attack_on_t.html
Any reason why the OP prefers Skein over any of the other SHA-3
candidates?
http://en.wikipedia.org/wiki/NIST_hash_function_competition
_______________________________________________
zfs-discuss mailing list
zfs-discuss@opensolaris.org
http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
