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Re: [Gnumed-devel] GNotary

From: Karsten Hilbert
Subject: Re: [Gnumed-devel] GNotary
Date: Tue, 30 Aug 2005 21:43:39 +0200
User-agent: Mutt/1.5.9i

On Wed, Aug 31, 2005 at 04:53:42AM +1000, Tim Churches wrote:

> > The hash is not md5 nut sha256 and ripmd160. I hope this makes a 
> > differences. 
> > If not. Tough luck. 
> SHA256 is thought to be quite safe against both colision and pre-image
> attacks for now.
The important part in this remark is "for now" and not
"quite safe".

Any hash is liable to be successfully attacked eventually
(is there an equivalent to one-time pads in "hash space" ?).
So one uses a couple of "best for now" hashes and hashes the
old hashes when one gets broken.

GPG key ID E4071346 @
E167 67FD A291 2BEA 73BD  4537 78B9 A9F9 E407 1346

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