Re: [RFC][PATCH] Make cryptoapi non-optional?
From: Chris Friesen
Date: Thu Aug 14 2003 - 15:12:30 EST
David Wagner wrote:
I don't see where you are getting this from. Define
F(x) = first80bits(SHA(x))
G(x) = first80bits(SHA(x)) xor last80bits(SHA(x)).
What makes you think that F is a better (or worse) hash function than G?
I think there is little basis for discriminating between them.
If SHA is cryptographically secure, both F and G are fine.
In this case we can save the bother of doing the xor, no?
Chris
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